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首页> 外文期刊>Environmental Research, Engineering and Management >2D Resistivity Imaging and Geotechnical Investigation of Structural Collapsed Lecture Theatre in Adekunle Ajasin University, Akungba-Akoko, Southwestern, Nigeria
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2D Resistivity Imaging and Geotechnical Investigation of Structural Collapsed Lecture Theatre in Adekunle Ajasin University, Akungba-Akoko, Southwestern, Nigeria

机译：尼日利亚西南部阿昆巴-阿科科阿德孔勒阿雅辛大学结构塌方演讲厅的二维电阻率成像和岩土工程研究

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Geotechnical and geophysical investigation involving electrical resistivity survey and laboratory test of the samples were conducted on the samples obtained at the three different locations in the area. The study is aimed at evaluating the competence of the near surface formation building construction materials. Geophysical and geotechnical methods of investigation were adopted. The Electrical Resistivity Tomography, using Dipole-Dipole configuration and soil analysis techniques were adopted. A total of four traverses and three soil samples from different location within the study area were used for the study. The geophysical results revealed that the topsoil is within the depth of 0 to 5m and it is reflective of varying resistivity which indicates materials suspected to be composed of low resistive materials such as water and underlain with a basement complex and presence of a very low resistivity in which water accumulate and percolate which makes it inimical to foundation of engineering structures. There is an evident of geological feature such as fracture within the bedrock which might aid subsidence in the area. while geotechnical results of natural moisture content, specific gravity, liquid limits, plastic limit, plasticity index, linear shrinkage, compaction and permeability ranges from 5.3-9.2%, 2.620-2.730, 23.0-41.9%, not plastic to 21.4%, from not plastic to 22.4%, 1.4-9.3,1790-2114 kg/m3, 9.1-9.9 and very low to medium respectively. Thus, the soil formation in the study area is therefore rated as relatively poor for foundation material. DOI: http://dx.doi.org/10.5755/j01.erem.69.3.5335
机译：对在该地区三个不同地点获得的样品进行了涉及电阻率调查和样品实验室测试的岩土工程和地球物理研究。该研究旨在评估近地表建筑材料的能力。采用了地球物理和岩土勘查方法。电阻率层析成像，采用偶极-偶极配置和土壤分析技术。来自研究区域内不同位置的总共四个导线和三个土壤样本用于研究。地球物理结果表明，表层土在0至5m的深度内，并且反映了电阻率的变化，这表明怀疑是由低电阻率的材料（例如水和地下层以及基底复合物）组成的材料，并且在土壤中存在非常低的电阻率。水的积聚和渗透，不利于工程结构的基础。有明显的地质特征，例如基岩内的裂缝可能有助于该地区的沉降。天然水含量，比重，液体极限，塑料极限，可塑性指数，线性收缩，压实和渗透率的岩土工程结果范围为5.3-9.2％，2.620-2.730、23.0-41.9％（非塑料）至21.4％（非）塑料分别降至22.4％，1.4-9.3、1790-2114千克/立方米，9.1-9.9和非常低至中等。因此，对于基础材料而言，研究区域的土壤形成被评为相对较差。 DOI：http：//dx.doi.org/10.5755/j01.erem.69.3.5335

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