沙土路基边坡力学稳定性改善及其效应

Sascidity Stability and Effect on the Stability of the Base of Sandi Road and its Effect

随着我国建设需求、体量的不断提升,沙土路基条件下的公路建设也逐渐成为了一项重点内容。但需要注意的是,沙土具有一定的松散性且粘聚力较低,因此用于工程建设就需要采取适当措施改良其力学性能。以从分析沙土路基边坡稳定性的要点及其防护措施出发,结合我国某工程实例展开分析,并通过剪切试验分析防护效果,结果表明:通过在沙土路基中掺加草木灰,可以提高沙土路基抗剪强度,且在掺量15%、垂直应力200kPa的条件下,改善效果最佳。

With the continuous improvement of my country's construction needs and volume,highway construction under the conditions of Shatu Road base has gradually become a key content.However,it should be noted that sand soil has a certain loosening and low adhesion,so it is necessary to take appropriate measures to improve its mechanical properties.This article analyzes from the main points of analyzing the stability of the base side slope of Shatu Road and its protection measures,combined with an analysis of a certain project of my country's project,and analyzing the protection effect through shear testing.The shear strength of the road base is the best improvement effect under the condition of 15%and vertical stress 200kPa.