论文部分内容阅读
选取察尔汗至格尔木高速公路路段沿线的盐渍土为研究对象,运用室内单轴压缩试验,利用单线单点法模拟现场浸水后施工特征,对该土在浸水情况下溶陷特性进行模拟试验研究。对比分析模拟试验结果与常规试验结果,发现模拟试验中土样的溶陷量较之常规试验更大,土体结构性破坏更加严重,说明在高含盐量的盐渍土地区,盐渍土浸水后会加剧路基的溶陷,为施工带来极其不利的影响。本文成果可为盐渍土地区的公路设计和施工提供有益参考。
The salinized soils along the road from Chaershan to Golmud are selected as the research object. The indoor uniaxial compression tests are used to simulate the construction characteristics after in-situ immersion with single-line single-point method. the study. By comparing the results of simulation and conventional tests, it is found that the dissolution amount of soil samples in simulation tests is larger than that of conventional tests, and the structural damage of soil is more serious. It shows that in saline soil areas with high salt content, saline soil Submergence will aggravate the subgrade dissolution, which has an extremely adverse impact on the construction. The results of this paper can provide useful reference for highway design and construction in saline soil area.