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以贺州学院西校区后山山脚下一深度约5.0 m的典型土坡剖面为研究对象,依据土坡剖面的特征将剖面分为7层,利用土工试验设备测定各土层土的含水量,确定各土层土中含水量的分布情况,对土坡失稳前后情况进行对比分析。通过数据分析发现含水量分布最大的位置(即地表下288.0 cm处)最先出现局部失稳状态,随着时间推移及降雨量加大,局部失稳状态往下蔓延,导致下部土体结构发生破坏,下部土体被掏空,最终导致土坡整体失稳。
Taking a section of typical soil profile with a depth of about 5.0 m at the foot of the rear hill of the Hezhou University West Campus as the research object, the section is divided into seven layers according to the characteristics of the soil slope profile, and the soil moisture content of each soil layer is determined by the geotechnical test equipment. Soil moisture content of each soil distribution, before and after instability of soil slope were compared and analyzed. According to the data analysis, it is found that the location with the highest water content (ie, 288.0 cm below the subsurface) first shows the local instability. As time goes by and the rainfall increases, the local instability spreads downward, resulting in the structure of the lower soil Destruction, the lower part of the soil is emptied, eventually leading to the entire slope instability.