黄土基坑典型区域不同含水率土体强度与变形特性研究OACHSSCDCSTPCD
Study on soil strength and deformation characteristics with different moisture content in typical areas of loess foundation pits
为了研究黄土地区基坑稳定性受含水率与应力路径影响的规律,针对基坑3个典型区域施工时土体实际受力情况,考虑黄土在不同含水率下强度差异明显的特性,选取具有代表性含水率的黄土进行3种应力路径下的加载、卸载试验,并进行对比研究.对比3类应力-应变曲线的偏应力峰值发现,黄土抵抗加载的能力＞抵抗轴向卸载的能力＞抵抗侧向卸载的能力;对比强度指标得出,含水率在26％及以上时,试样强度大幅下降,并且两者为指数函数关系;饱和试样的孔压在卸载前期为负值,采用Logis…查看全部>>
The study examined the impact of moisture content and stress path on the stability of foundation pits in loess areas with the focus on the soil stress conditions during construction in three typical pit areas.Considering the significant strength differences in loess at different moisture levels,loess samples with representative moisture contents were selected for loading and unloading tests under three stress paths for comparative analysis.The results showed…查看全部>>
钟华;官宸慧;刘路路
广西路桥工程集团有限公司,广西南宁 530200武汉大学土木建筑工程学院,湖北武汉 430072中国矿业大学深部岩土力学与地下工程国家重点实验室,江苏徐州 221116
土木建筑
黄土基坑含水率土体强度孔隙水压力变形模量
loess foundation pitmoisture contentsoil strengthpore water pressuredeformation modulus
《南京工业大学学报（自然科学版）》 2024 (2)
205-215,11
国家自然科学基金(42302320)
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