用高压旋喷斜桩整治朔黄铁路路基下沉病害  

Treatment of Shuozhou-Huanghua Railway Subgrade Settlement Using High Pressure Jet Grouting Pile

作　　者：郭龙龙[1] 邹正盛[2] 程克森 

机构地区：[1]中铁十四局集团有限公司北京工程指挥部,北京100036 [2]河南理工大学土木工程学院,河南焦作454003

出　　处：《路基工程》2011年第3期231-233,共3页Subgrade Engineering

基　　金：河南理工大学博士基金资助项目(648198)

摘　　要：介绍朔黄铁路K65+490^+770路基下沉地段用高压旋喷斜桩加固的方法、施工技术参数和施工控制参数的确定以及施工工艺流程。通过对路堤进行高压注浆,其水泥浆、泥土经充分混合搅拌形成网格状水泥土骨架,从而达到提高路基土的抗剪强度、承载力和阻止路基下沉的目的。现场观测与检测表明,路基下沉病害得到了根治。The method,construction technical parameters and control parameters,and construction process of high pressure jet grouting pile for reinforcement of K65＋490~＋770 settled section of Shuozhou-Huanghua Railway are introduced in this paper.Through high pressure grouting,grout and soil are mixed well to form cement geogrid to improve shear strength and bearing capacity of subgrade soil and prevent settlement.It is shown from site observation and detection that subgrade settlement has been cured.

关 键 词：铁路 路基病害 高压旋喷斜桩 土体加固改良 

分 类 号：TU472.36[建筑科学—结构工程]