高速铁路花岗岩全风化物填料改良试验研究  

Experimental Study on Filling Improvement for Completely Weathered Material of Granite along High-speed Railway

作　　者：武凤远[1] 

机构地区：[1]上海铁路局建设处,上海200071

出　　处：《路基工程》2014年第2期85-88,共4页Subgrade Engineering

基　　金：铁道部科技研究开发计划项目:高速铁路深厚软土地段地基加固处理与路基填筑技术综合试验研究(2008G031-C)

摘　　要：花岗岩系为主的侵入岩全风化物,是一种具有特殊物理力学特性的特殊土,遇水具有崩解性,用作路基填料时,雨季易发生压缩变形、边坡冲刷等病害。通过室内试验研究了花岗岩系全风化物及其物理改良填料的工程性质,并在某高速铁路进行了现场填筑试验。试验结果表明,全风化物改良填料的物理力学性能能满足高速铁路路基工程的要求。The completely weathered material of intrusive rock that are granite series primarily is a kind of special soil having special physical and mechanical properties. It is of water-disintegration and, when used as subgrade filling, subject to compression deformation, slope erosion and other diseases in rainy season. Through indoor tests, the engineering properties of both the completely weathered material of granite series and its filling for physical improvement were studied, with the filling test carried out in the field of a high-speed railway. The test result shows that the physical and mechanical properties of the filling to improve the completely weathered material can meet the requirement of subgrade engineering for high-speed railway.

关 键 词：高速铁路 花岗岩全风化物 填料改良 室内试验 填筑试验 

分 类 号：U213.1[交通运输工程—道路与铁道工程]