管道施工淤泥质粉质粘土力学特性试验分析

Experimental Analysis on Engineering Mechanics Properties of Mucky Silt Clay

当较长的输水管线工程穿越淤泥质粉质粘土段时,由于淤泥质粉质粘土地基承载力低,容易导致施工机械塌陷、施工困难,易引发安全事故。通过对本工程的淤泥质粉质粘土的土工试验数据的统计研究,结合原位测试结果,统计出了瓦房店市淤泥质粉质粘土的工程力学特性,并通过对淤泥质粉质粘土物理力学性质指标之间的相关关系进行整理、回归分析,得到了各参数间的关系式,建立了该地区的经验公式。在该地区的实际工程中,可依据这些经验公式,由相对容易得到的物理参数来求取较复杂的力学参数,且准确性较高,对实际工程具有重要的指导意义。

When the pipeline drills through long distance under mucky silt clay conditions, the low bearing capacity of foundation will lead to construction difficulties, even other catastrophic is-sues, such as surface collapse. By statistical studies of mucky silt clay soil test data, combined with in situ test results, the experimental results are analyzed, the empirical formula are estab- lished, the engineering mechanics geological characteristics of mucky silt clay of Wafangdian city are drawn, the correlation between the silt soil physical and mechanical properties index sorting are given. Pursuant to these in the area of practical engineering experience is relatively easy to get parameters to strike a more complex parameters. So it has high accuracy and engineering refer-ence value.