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会议信息

会议名称:

Geotechnical frontiers

召开年:

2017

召开地:

Orlando

会议文集:

Geotechnical frontiers 2017: waste containment, barriers, remediation, geoengineering: Third Geotechnical frontiers 2017, March12-15 2017, Orlando, FL, USA

主办单位:

American Society of Civil Engineers Industrial Fabrics Association International

出版时间:

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  • 题名 作者 来源 发表时间 操作
  • Comparison of Field and Laboratory Methods for Measuring Hydraulic Conductivity in the Unsaturated Zone in Engineered and Native Soils

    作者:Pablo R. Garza;Zachary Zukowski;Andrea Welker;Derron LaBrake;Richard Nalbandia; 会议名称:Geotechnical frontiers 2017年

    Stormwater control measures (SCMs) are used to control runoff volume and peak flow rates. Rain gardens are one type of vegetated SCM which can utilize engineered or native media. Hydraulic conductivity, which can be measured in the field or laboratory, is a major design parameter for infiltration SCMs. The double-ring infiltrometer (ASTM D3385) is the most commonly used technique to determine hydraulic conductivity in the field; however, it can be cumbersome because of its considerable size and large water usage. In this study, various infiltration techniques, such as Modified Philip-Dunne, single-ring, and double-ring infiltrometers, were used to determine the hydraulic conductivity at different sites. In addition, the UMS KSAT Benchtop laboratory method was used to find hydraulic conductivity. Preliminary results indicate that the Modified Philip-Dunne provides results similar to the other tests methods.

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  • Comparison of Field and Laboratory Methods for Measuring Hydraulic Conductivity in the Unsaturated Zone in Engineered and Native Soils

    Pablo R. Garza;Zachary Zukowski;Andrea Welker;Derron LaBrake;Richard Nalbandia;

    Geotechnical frontiers

    2017年

  • Infiltration Characteristics of Chemically-Treated Water-Repellent Kaolin

    作者:Youngmin Choi;Sanghyeong Lim;Tae Sup Yun;Woojin Lee;Changho Lee; 会议名称:Geotechnical frontiers 2017年

    Degree of water repellency significantly influences the infiltration behavior of water-repellent soils. In this study, the chemically treated water-repellent kaolin clays with different concentrations (C_O) of an organosilane solution are examined to explore the effect of water repellency on its infiltration characteristics. Experimental results show that the soil-water contact angle tends to increase with increasing C_O until C_O = 5%, and then shows an almost constant value with increasing C_O. The water infiltration time (WIT) results show that water infiltration resistance is significantly improved by organosilane treatment (C_O ≥ 5%) under low hydrostatic pressure (WP). However, as the hydrostatic pressure increases, WIT is converged (Co = 5%) or exacerbated (C_O = 10% and 20%) to the WIT of untreated clay. The different behaviors of infiltration are discussed in terms of wetting patterns. The findings can be used to improve a conventional hydraulic barrier system.

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  • Infiltration Characteristics of Chemically-Treated Water-Repellent Kaolin

    Youngmin Choi;Sanghyeong Lim;Tae Sup Yun;Woojin Lee;Changho Lee;

    Geotechnical frontiers

    2017年

  • A Review on Coupled Heat and Water Vapour Transport in Unsaturated Soils

    作者:K. R. Arsha Lekshmi;Dali Naidu Arnepalli; 会议名称:Geotechnical frontiers 2017年

    Coupled heat and water transport has found to be relevant in unsaturated soils because of increasing interest in disposal of radioactive wastes, geothermal energy, hydrology and agricultural problems. In an unsaturated soil, heat can be either latent or sensible or both and water may take the form of either liquid or vapour or both. The impact of thermal gradient on water vapour movement in terms of both vapour and liquid flow is essential and it requires accurate experimental quantification and representation for modeling of coupled heat and water vapour flow. Although it is possible to calculate the total water vapour flux, it is difficult to distinguish experimentally between liquid and vapour fluxes in unsaturated soils. This paper focuses on providing a critical review on heat and water vapour transport in unsaturated soils.

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  • A Review on Coupled Heat and Water Vapour Transport in Unsaturated Soils

    K. R. Arsha Lekshmi;Dali Naidu Arnepalli;

    Geotechnical frontiers

    2017年

  • Water and Gas Flows in Hydrate-Bearing Sediments

    作者:Yue Xu;Yongkoo Seol;Jaewon Jang;Sheng Dai; 会议名称:Geotechnical frontiers 2017年

    Gas hydrate plays a critical role in new energy resource, global carbon budget, and submarine instability. Enhanced understanding on how gas hydrates influencing these issues largely depends on in-depth understanding of multiphase flow in hydrate-bearing sediments particularly during hydrate formation and dissociation processes. However, appropriate selection of flow parameter values for hydrate simulators is not available. Published parameter values show large discrepancies among hydrate simulators as well as between numerical and experimental studies. Based on experimental results of single-phase flow in hydrate-bearing sediments, recommended flow parameters for hydrate-bearing sediments are λ = 1, S_(rw) = 0.1, and S_(rg) = 0.55 for the Brooks and Corey model and m = 0.7, S_(rw) = 0.1, and S_(rg) = 0.5 for the van Genuchten model. In general, current hydrate simulators underestimate residual gas saturation S_(rg), which will lead to overestimated rate of gas production from hydrate deposits. These results are also relevant to multiphase flow in porous media undergoing diagenesis, bio-clogging, or mineral precipitation and dissolution.

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  • Water and Gas Flows in Hydrate-Bearing Sediments

    Yue Xu;Yongkoo Seol;Jaewon Jang;Sheng Dai;

    Geotechnical frontiers

    2017年

  • Microstructure-Based Random Finite Element Simulation of Thermal and Hydraulic Conduction Processes in Unsaturated Frozen Soils

    作者:Shaoyang Dong;Xiong (Bill) Yu; 会议名称:Geotechnical frontiers 2017年

    The freeze-thaw cycles in unsaturated frozen soils can cause serious damage to civil infrastructure. In this paper, a microstructure-based four-phase clay model is generated in Matlab. The model is then converted into a finite element software Comsol. The thermal, hydraulic and mechanical properties of each phase (soil particle, ice, water and air) of the clay are applied randomly to each pixel of the image model based on the volumetric content of each phase. The simulation results show that: (1) The thermal and hydraulic flow are observed during the freeze-thaw cycle. (2) The temperature, matric suction and potential head are obtained during the thawing process of the clay model. (3) The internal stress distribution versus time are calculated during the freezing process. The simulation results agree well with the engineering experience, which provides a simulation model to microstructurally analyze the thermal, hydraulic and mechanical properties of unsaturated frozen soils.

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  • Microstructure-Based Random Finite Element Simulation of Thermal and Hydraulic Conduction Processes in Unsaturated Frozen Soils

    Shaoyang Dong;Xiong (Bill) Yu;

    Geotechnical frontiers

    2017年

  • Measurement of Thermal Conductivity Dry-Out Curves for Sands and Model Prediction

    作者:Nan Zhang;Xuelin Wang;Xinbao Yu; 会议名称:Geotechnical frontiers 2017年

    Study on soil thermal conductivity draws much attention recently since it is a governing soil thermal property in heat transfer process for geothermal applications. The variation of soil thermal conductivity at shallow depth is less understood because it is affected by various environmental factors (e.g. temperature, humidity, precipitation, etc.). This paper presents the measurement of thermal conductivity dry-out curves (TCDCs) for sands using a modified hanging column device (MHCD). Thermal conductivity of three sands was measured continuously from fully saturated condition to dry condition using a KD2 Pro (i.e. TR-1 single probe). A thermo-TDR probe was also used to measure sand moisture content. TCDCs of test sands were established with respect to degree of saturation, and then compared with the measured thermal conductivities obtained by multiple-specimen method (MSM). A good agreement of measured thermal conductivity was found between the MHCD and the MSM. The predicted TCDCs by three alternative thermal conductivity models were also compared with the measured curves. Recommendations have been provided to improve the models for wider applications.

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  • Measurement of Thermal Conductivity Dry-Out Curves for Sands and Model Prediction

    Nan Zhang;Xuelin Wang;Xinbao Yu;

    Geotechnical frontiers

    2017年

  • Comparison of Two Laboratory Methods for Measuring the Critical Temperature of Sandy Soils

    作者:Hyunjun Oh;James M. Tinjum; 会议名称:Geotechnical frontiers 2017年

    In this study, soil critical temperature was measured using two distinct approaches: (1) a temperature profile established from a heating element located at the top of a vertical column and (2) temperature and moisture profiles induced from a centrally placed heating source in a 'horizontal' apparatus. Steady-state thermal and moisture equilibrium took longer to establish in the horizontal apparatus (on average, nine hours longer); however, the resulting temperature and moisture profiles were more consistent in the horizontal apparatus and with easily discerned slope discontinuities between the dry and moist zones. More ambiguous temperature profiles were observed in the vertical apparatus, even with insulation and heat tape applied to minimize horizontal boundary losses. This is indicative of the difficulty in maintaining one-dimensional heat flow in a vertical column. As soil critical temperature is an important parameter used in designing underground infrastructure impacted by significant heat transfer, such as buried power cables, refinement and standardization of equipment and protocol for determining this parameter in a precise and mechanistically sound manner is of prime concern.

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  • Comparison of Two Laboratory Methods for Measuring the Critical Temperature of Sandy Soils

    Hyunjun Oh;James M. Tinjum;

    Geotechnical frontiers

    2017年

  • Dynamic Characteristics of Lightweight Cellular Concrete

    作者:Binod Tiwari;Beena Ajmera;Diego Villegas; 会议名称:Geotechnical frontiers 2017年

    Lightweight cellular concrete has been utilized in many geotechnical applications including as the backfill in retaining walls, lightweight pavements, land slip repairs, bridge approach fills and to provide shock absorption in earthquake zones. The use of this material in seismic regions requires an understanding of its dynamic properties. In this study, five different mixes of lightweight cellular concrete, with varying unit weights were tested in a cyclic simple shear apparatus. The samples were subjected to four different consolidation pressures followed by a series of fifteen strain-controlled undrained sinusoidal cyclic loads. The cyclic strains were varied from 0.08% to 1.0% double amplitude shear strains. From the results obtained, the maximum shear modulus was found to increase as the dry unit weight of the material decreased and as the consolidation pressure increased. The damping ratio was found to decrease with increasing shear strain until a threshold shear strain was reached beyond which the damping ratio increased with an increase in the shear strain. This threshold shear strain ranged from 0.25% to 0.35% for the specimens tested.

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  • Dynamic Characteristics of Lightweight Cellular Concrete

    Binod Tiwari;Beena Ajmera;Diego Villegas;

    Geotechnical frontiers

    2017年

  • Thixotropy of Sludge from the Cubatao Water Treatment Plant, Brazil

    作者:Juliana K. Tsugawa;Kelly F. S. Pereira;Maria E. G. Boscov; 会议名称:Geotechnical frontiers 2017年

    A more sustainable destination for water treatment sludge (WTS) is its use in earthworks and as landfills liners. However, because of its high water content and plasticity, the investigation of WTS workability in construction procedures is mandatory. As a contribution for this purpose, this paper investigated the thixotropic effect of Cubatao WTS by means of laboratory vane tests. The experimental procedure consisted in preparing triplicate samples of sludge remolded at the liquid limit and storing them for different times to determine the gain of undrained shear strength. Results indicate that Cubatao WTS is thixotropic. The very low remolded undrained shear strength triples after five months of storage. Despite the thixotropic regain reaching 200%, the strength is still insufficient for geotechnical purposes and additional treatments will be necessary to turn the sludge into a reusable material for earthworks.

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  • Thixotropy of Sludge from the Cubatao Water Treatment Plant, Brazil

    Juliana K. Tsugawa;Kelly F. S. Pereira;Maria E. G. Boscov;

    Geotechnical frontiers

    2017年

  • A Bio-Inspired Perspective for Geotechnical Engineering Innovation

    作者:Jason T. DeJong;Matthew Burrall;Daniel W. Wilson;J. David Frost; 会议名称:Geotechnical frontiers 2017年

    The rapidly emerging sub-discipline of biogeotechnics is comprised of both bio-mediated and bio-inspired technologies. Research and development over the past decade have focused primarily on bio-mediated technologies, while research on bio-inspired geotechnical technologies is still in the early stages. This paper synthesizes the advances in the broader field of bio-inspired design and highlights aspects particularly relevant to the exploration of new geotechnical engineering innovations. The structure, advantages, and challenges of both problem-based and solution-based design methodologies are presented. A hierarchical framework for the characterization of biological systems is discussed in the context of how the framework facilitates the use of bio-inspired methodologies. Finally, an example application of the bio-inspired design methodology to tree root inspired foundation and anchorage systems is explored and discussed.

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  • A Bio-Inspired Perspective for Geotechnical Engineering Innovation

    Jason T. DeJong;Matthew Burrall;Daniel W. Wilson;J. David Frost;

    Geotechnical frontiers

    2017年

  • Time-Dependent Properties of Very High Moisture Content Fine Grained Soils Stabilized with Portland and Slag Cement

    作者:Isaac L. Howard;Brennan K. Anderson; 会议名称:Geotechnical frontiers 2017年

    Recently, chemical stabilization applications seem to be expanding, in particular stabilizing finegrained soils with elevated moisture. In this paper, very high moisture soils (VHMS) chemically stabilized with 5% or more cementitious material by total mass are referred to as cemented VHMS, or C-VHMS. This paper's primary objective is to evaluate strength gain of C-VHMS over time and use the measured properties to evaluate usefulness for various applications. A secondary objective is to compare properties of Portland cement to blended Portland and slag cement within C-VHMS. C-VHMS strength properties were reported from mixing through 180 days of curing on two soils. Results showed Portland and slag cement blends were able to produce on the order of 67% of compacted soil-cement (albeit with considerably different total dosage rates) in one of the soils. Overall, C-VHMS, when allowed sufficient curing time, was shown to be more robust than intuition might suggest.

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  • Time-Dependent Properties of Very High Moisture Content Fine Grained Soils Stabilized with Portland and Slag Cement

    Isaac L. Howard;Brennan K. Anderson;

    Geotechnical frontiers

    2017年

  • Reliability Analysis of Embankment Dams

    作者:S. Lacasse;F. Nadim;Z. Q. Liu;U. K. Eidsvig; 会议名称:Geotechnical frontiers 2017年

    The reliability analyses of one rockfill embankment dam in Norway are presented. The event tree analysis and the Bayesian network approaches, the latter combined with Monte Carlo simulations, were used to obtain the annual probability of dam breach. The analyses were run partly in a workshop format, as a process to reach consensus among several experts on the parameters to consider in the calculation of probabilities. The analyses illustrate that the reliability analyses enabled the identification of an unexpected mode of failure and later quantified the effect of rehabilitation measures on the estimated probability of dam breach.

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  • Reliability Analysis of Embankment Dams

    S. Lacasse;F. Nadim;Z. Q. Liu;U. K. Eidsvig;

    Geotechnical frontiers

    2017年

  • Polymeric Shell-Confined Aggregate Pier Ground Improvement Method to Support Bridge Embankments over Soft Clay Soil

    作者:Tony Sangiuliano;Jason Brown;Brian C. Metcalfe;Kord J. Wissmann; 会议名称:Geotechnical frontiers 2017年

    Densified aggregate piers have been widely used for ground improvement since the mid 1990's. The piers are typically constructed by backfilling cylindrical cavities with densified stone using a vertical ramming apparatus. The strength and compressibility of densified aggregate piers systems are confining stress dependent and tend to have low capacities in highly compressible soil because of their tendency to bulge into weak soil. This paper describes the design and construction of a densified aggregate pier system with polymeric shells for confinement in soft soil for a highway embankment in Seeley's Bay, Ontario, Canada. The method allows for the insertion of high density polyethylene (HDPE) sleeves into the ground through the soft materials using a specially adapted mandrel. This paper is of particular significance because it presents significant insight into an effective ground improvement method in weak and sensitive soil subject to shear strength degradation by traditional aggregate pier methods.

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  • Polymeric Shell-Confined Aggregate Pier Ground Improvement Method to Support Bridge Embankments over Soft Clay Soil

    Tony Sangiuliano;Jason Brown;Brian C. Metcalfe;Kord J. Wissmann;

    Geotechnical frontiers

    2017年

  • I-295/I-76/Route 42 Direct Connect—CSES Design Considerations and Measured Results

    作者:Kyle R. Shatzer;Mary C. Nodine;Frederic Masse;Brandon T. Buschmeier; 会议名称:Geotechnical frontiers 2017年

    The I-295/I-76/Route 42 Direct Connection is a multi-phase, 9 year, $900+ million highway improvement project in Camden County, NJ. The New Jersey Department of Transportation (NJDOT) specified a design-build column supported embankment system (CSES) to control settlement and accelerate construction of several mechanically stabilized earth (MSE) wall embankments. This paper discusses methods for designing controlled modulus column rigid inclusion support across varied soil conditions and MSE wall embankment configurations. Additionally, results of initial CSES settlement predictions are compared with measured values from the geotechnical monitoring program across Contract 1 CSES work areas.

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  • I-295/I-76/Route 42 Direct Connect—CSES Design Considerations and Measured Results

    Kyle R. Shatzer;Mary C. Nodine;Frederic Masse;Brandon T. Buschmeier;

    Geotechnical frontiers

    2017年

  • Numerical Modeling of Columnar-Reinforced Ground Behavior during Dynamic Centrifuge Testing

    作者:Soheil Kamalzare;C. Guney Olgun; 会议名称:Geotechnical frontiers 2017年

    Predicting the response of soil profiles during earthquakes is one of the major challenges in geotechnical earthquake engineering. The presence of reinforcing elements such as stiff columns adds further complexity to the problem due to the interaction of these stiff elements with the surrounding ground. This research presents the results of advanced numerical simulations of dynamic centrifuge tests performed on a columnar reinforced model with a loose sandy profile. The model was subjected to earthquake base motions of varying intensities to investigate the reinforcing mechanisms of soil-cement columns. Numerical simulations were performed using the finite element computational platform OpenSees with pressure dependent multi yield (PDMY02) constitutive model. Simulated and measured values were compared for seismic intensity, excess pore water pressure and ground settlement at different locations within soil profile. The calibrated numerical model was able to realistically predict the response of reinforced ground.

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  • Numerical Modeling of Columnar-Reinforced Ground Behavior during Dynamic Centrifuge Testing

    Soheil Kamalzare;C. Guney Olgun;

    Geotechnical frontiers

    2017年

  • How Geosynthetic Reinforcement Supports the Piled Embankment: A Numerical Approach

    作者:Young-Hoon Jung;Taehee Lee;Su-Hyung Lee;Il-Wha Lee; 会议名称:Geotechnical frontiers 2017年

    The modern approach to the piled embankment includes the basal reinforcement of geosynthetic layers. Current design guidelines for piled embankment in the Netherlands, Germany, and UK have been updated to accurately estimate the practical tensile strains of employed geosynthetics, whereas the analytical approaches were usually underestimated against the experiment and in-situ results. In this study, a series of finite element simulations concerning different types of soil-geosynthetics interaction were conducted to reveal the difference of frictional modeling method. The geosynthetic strains along the diagonal and orthogonal direction from the pile center toward to the other pile were obtained according to the loading condition. The completely different responses were observed with respect to the type of the frictional model.

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  • How Geosynthetic Reinforcement Supports the Piled Embankment: A Numerical Approach

    Young-Hoon Jung;Taehee Lee;Su-Hyung Lee;Il-Wha Lee;

    Geotechnical frontiers

    2017年

  • Non-Destructive Testing of Drilled Foundations at Cove Point Using Thermal Integrity Profiling

    作者:James P. McDermott;Justin T. Zarrella;Seth H. Hamblin; 会议名称:Geotechnical frontiers 2017年

    The Dominion Cove Point LNG Terminal, located in Lusby, Maryland, recently began a $3.8 billion-dollar terminal upgrade to expand capacity and facilitate export capabilities. Given the soil conditions, strict vibration thresholds, and site logistics at the active LNG facility, Dominion and the IHI-Kiewit Cove Point JV selected drilled, cast-in-place elements as the primary foundation type to support temporary/permanent structures. Over 4,750 Auger cast-in-place piles and 700 drilled shafts were installed. Due to the sensitivity of the proposed structures, extensive non-destructive integrity testing (NDT) was required. The initial quality control program included pile echo testing and cross-hole sonic logging (CSL). However, due to site specific limitations, alternative NDT methods were required. Thermal integrity profiling was ultimately selected and the results of large-scale testing highlight this new technology as a highly effective and cost-efficient method of testing drilled, cast-in-place foundations.

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  • Non-Destructive Testing of Drilled Foundations at Cove Point Using Thermal Integrity Profiling

    James P. McDermott;Justin T. Zarrella;Seth H. Hamblin;

    Geotechnical frontiers

    2017年

  • Field Measurement of Noise and Ground Surface Vibration during Pile Jetting and Grouting

    作者:Sudheesh Thiyyakkandi;Michael C. McVay;Peter Lai;Rodrigo Herrera; 会议名称:Geotechnical frontiers 2017年

    Noise and vibration are critical issues associated with pile driving operations in an urban environment. Alternative foundations such as drilled shafts and augercast piles alleviate much of the operational noise and vibration. However, the cast-in place installation process may raise concerns in quality control if not adequately monitored. Post grouting the drilled shaft base has been widely used to mobilize a larger portion of the tip resistance prior to construction of the superstructure, thereby controlling the axial displacement during the service. In response to the operational challenges in urban environments, the Florida Department of Transportation and the University of Florida have recently developed a new generation of deep foundation, namely "Jetted and Grouted Precast Pile". The process consists of pressurized water jetting a concrete pile instead of a hammer-driven installation, and subsequent side and tip grouting the pile, which significantly improve skin and tip resistance, respectively, as well as lateral and torsional stiffness. Several studies have been focused on such increase in axial and torsional resistance by grouting techniques. However, there has been little field data available to support quantifiable noise and vibration reduction by jetting and grouting processes. This paper presents field measurements of noise and ground surface vibration during full-scale installation of jetted and grouted piles. Comparison of measured data to recommended noise and vibration limits suggests that jetting and grouting techniques are a viable solution for urban geo-infrastructure development.

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  • Field Measurement of Noise and Ground Surface Vibration during Pile Jetting and Grouting

    Sudheesh Thiyyakkandi;Michael C. McVay;Peter Lai;Rodrigo Herrera;

    Geotechnical frontiers

    2017年

  • Influence of Chemical Stabilization on the Flexural Fatigue Performance of Subgrade Soil

    作者:Moeen Nazari;Rouzbeh Ghabchi;Musharraf Zaman;Sesh Commuri; 会议名称:Geotechnical frontiers 2017年

    The chemically-stabilized subgrade (CSS) soil layer in a pavement structure can undergo flexural fatigue as a result of a high number of loading cycles and brittleness of the stabilized soil. The type and amount of chemical stabilizing agents are generally selected based on the results of unconfined compressive strength (UCS) and/or resilient modulus (M_r) tests. The UCS and M_r tests help characterize the compressive behavior of the soil and do not specifically assess the flexural behavior of the CSS layer under cyclic loads. This study aims to evaluate the fatigue life of the CSS layer and compare it with other common indicators such as UCS and M_r. For this purpose, a series of UCS, M_r and four-point flexural fatigue (FPFF) tests were conducted on CSS soil samples. The materials tested in this study consisted of six blends of a lean clay stabilized using cement kiln dust (CKD) and hydrated lime. The CKD was mixed with the soil at 5, 10, and 15% by weight of dry soil. The hydrated lime was mixed with soil at 3, 6, and 9% by weight of dry soil. It was found that while increasing the amount of stabilizing agent resulted in higher UCS and M_r values, it had an adverse effect on the fatigue life of CSS. The specimens containing 5% CKD and 3% lime showed the highest fatigue lives compared with other mixes. It was concluded that the strain endured by the material at the peak load (strain at failure) plays an important role in the fatigue life of the CSS. CSS samples with a high strain level at failure possessed a high fatigue life while those with a lower strain at failure failed after a relatively low number of loading cycles.

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  • Influence of Chemical Stabilization on the Flexural Fatigue Performance of Subgrade Soil

    Moeen Nazari;Rouzbeh Ghabchi;Musharraf Zaman;Sesh Commuri;

    Geotechnical frontiers

    2017年

  • Evaluation of the Freeze and Thaw Durability of Road Soils Stabilized with a Biofuel Co-Product

    作者:Bo Yang;Halil Ceylan;Kasthurirangan Gopalakrishnan;Sunghwan Kim; 会议名称:Geotechnical frontiers 2017年

    In the past decade, the biofuel industry has seen significant development in the United States and all over the world. Based on a review of recent bioenergy literature, it appears the by-products derived during biofuel production may play a positive role in value-added engineering applications. Recent studies at Iowa State University (ISU) demonstrated the successful utilization of biofuel co-products (BCPs) in pavement subgrade stabilization. This paper discusses the effect of three types of BCPs containing different lignin content from lignocellulosic biorefineries on a typical Iowa soil called loess in terms of freeze and thaw durability. Emphasis is given to detailed data analysis of laboratory test results in comparing three types of BCPs treated soils with untreated and cement treated soils. Results reveal that the BCPs investigated in this study are promising materials to improve freeze and thaw durability of the Iowa loess classified as CL-ML or A-4 for geotechnical applications.

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  • Evaluation of the Freeze and Thaw Durability of Road Soils Stabilized with a Biofuel Co-Product

    Bo Yang;Halil Ceylan;Kasthurirangan Gopalakrishnan;Sunghwan Kim;

    Geotechnical frontiers

    2017年

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(3)利用外文文献进行商业服务或支持商业服务;

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5.免责声明

(1)本平台仅为根据您的搜索指令提供搜索服务、数据链接服务和电子邮件原文传递服务,搜索结果和原文数据均来自第三方网站,六维联合不会对第三方网站内容作任何实质性的编辑、整理、修改;

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6.其他规定

(1)本协议内容受中华人民共和国法律的约束。如果本协议中任何规定被裁定为无效或不可强制执行,该项规定应被撤销,而其余规定继续有效。

(2)本协议的最终解释权归六维联合。

(3)本协议条款可由六维联合随时全部或部分转让。未经六维联合事先明确书面同意,用户不得以任何方式转让本协议条款。

注意:六维联合未就您或其他人士的某项违约行为采取行动,并不表明六维联合就任何继后或类似的违约事件放弃采取行动的权利。


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