广东省阳春市某滑坡土体原位直剪试验研究  

Study of in situ direct shear test of a landslide in Yangchun City,Guangdong Province

作　　者：周华 ZHOU Hua(Guangxi Guigang Agricultural Investment Development Group Co.,Ltd.,Guigang 100038,Guangxi,China)

机构地区：[1]广西贵港市农业投资发展集团有限公司,广西贵港100038

出　　处：《资源信息与工程》2022年第5期73-75,共3页Resource Information and Engineering

摘　　要：对广东省阳春市某滑坡体进行了原位直剪试验,研究了不同法向应力下土体的抗剪强度。利用最小二乘法绘制垂直压力与剪应力曲线,从而求得抗剪强度指标黏聚力c和内摩擦角φ值。对每个试验土块进行了剪切面土体密度、含水率试验,分析了不同密度、含水率下的抗剪强度指标。该试验可为该地区相关工程土体抗剪强度指标提供参考。In situ direct shear tests were carried out on a landslide in Yangchun City,Guangdong Province to study the shear strength of soil under different vertical pressures.According to the relationship between shear strength and vertical pressure,the strength envelope was determined,and the shear strength indexes cohesion c and internal friction angle φ were obtained.The soil density and water content of shear plane were tested for each test soil block,and the shear strength indexes under different densities and water content were analyzed.This test can provide a reference for shear strength indexes of related engineering soils in this area.

关 键 词：原位剪切 抗剪强度 滑坡 阳春市 

分 类 号：TU413[建筑科学—岩土工程]