Experimental Study and Numerical Simulation Using Extended Finite Element Method (XFEM) Combined with Cohesive Zone Model (CZM), of Crack Growth Induced by Non-Explosive Expansive Material on Two Neighboring Circular Holes of A Gneiss Rock

Frank Ferry Kamgue Tiam; Raïdandi Danwe; Noël Konaï; Lucien Meva’a

首页> 中文期刊> 《应用科学（英文）》 >Experimental Study and Numerical Simulation Using Extended Finite Element Method (XFEM) Combined with Cohesive Zone Model (CZM), of Crack Growth Induced by Non-Explosive Expansive Material on Two Neighboring Circular Holes of A Gneiss Rock

Experimental Study and Numerical Simulation Using Extended Finite Element Method (XFEM) Combined with Cohesive Zone Model (CZM), of Crack Growth Induced by Non-Explosive Expansive Material on Two Neighboring Circular Holes of A Gneiss Rock

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The Non-explosive expansion material (NEEM) is a method more environmentally friendly than the harmful conventional rock fracturing techniques. However, it is slower and very costly. Thus, any means of economizing their use is very desirable. This paper investigates the crack growth between two neighboring holes of a gneiss rock internally pressurized by NEEM mixed with water with the aim to evaluate the influence of holes spacing (center-to-center distance), on the initiation and growth of cracks. Field experimental results reveal that crack starts earlier and grows faster with increasing ambient temperature. But when the ambient temperature is above 28°C, the NEEM is “blown out” of the holes. At these ambient temperatures, the surrounding rocks are hot and cannot dissipate efficiently the heat generated by the hydration reaction. The best filling time was found to be in the evening when the daily hot temperature has drooped. The time to first crack increases as hole diameter decreases. The 3D numerical modeling and simulation of crack growth between two neighboring holes internally pressurized by NEEM using ABAQUS (XFEM/CZM) software shows a good agreement with the theoretical and experimental results.

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《应用科学（英文）》 |2020年第10期|P.592-612|共21页
作者
Frank Ferry Kamgue Tiam; Raïdandi Danwe; Noël Konaï; Lucien Meva’a;
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作者单位

Laboratory of Civil and Mechanical Engineering National Advanced School of Engineering Yaoundé 1 University Yaoundé CameroonSchool of Geology and Mining Engineering Ngaoundéré University Meiganga Cameroon;

Laboratory of Civil and Mechanical Engineering National Advanced School of Engineering Yaoundé 1 University Yaoundé CameroonNational Advanced School of Engineering of Maroua Maroua Cameroon;

Laboratory of Civil and Mechanical Engineering National Advanced School of Engineering Yaoundé 1 University Yaoundé Cameroon;

Laboratory of Civil and Mechanical Engineering National Advanced School of Engineering Yaoundé 1 University Yaoundé Cameroon;

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原文格式 PDF
正文语种 chi
中图分类固体力学;
关键词
Crack Growth; XFEM; Gneiss; Holes Spacing;

机译：裂纹扩展;XFEM;片麻岩;孔距;

Experimental Study and Numerical Simulation Using Extended Finite Element Method (XFEM) Combined with Cohesive Zone Model (CZM), of Crack Growth Induced by Non-Explosive Expansive Material on Two Neighboring Circular Holes of A Gneiss Rock

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