岩溶地区地基注浆浆液制备研究  

Preparation of Slurries of Permeability Grouting in Karst Area

作　　者：李烈见 左文贵[1] LI Liejian;ZUO Wengui(School of Geosciences and Info-Physics,Central South University,Changsha 410000)

机构地区：[1]中南大学地球科学与信息物理学院,长沙410000

出　　处：《土工基础》2022年第2期135-138,共4页Soil Engineering and Foundation

基　　金：2020年湖南省应急管理厅科技项目(2020YJ006)。

摘　　要：随着我国建筑标准化工艺要求的日益提高,当前所使用的岩溶区域地基注浆处理工艺因其较为原始的施工工艺以及材料损耗量大等缺陷,已经不能满足施工需要。对当前岩溶路地基的注浆浆液配比进行了改进,并通过面波检测、压水检测、地基预压沉降评估等手段对改进后的注浆地基进行评价。研究结果表明,经过改进后的浆液注浆作业,加固后的地基性能指标有了一定程度的提升,说明了此次研究所提出的浆液配比改进方法具有可行性以及实用性。希望能够为提高我国岩溶地区地基施工工艺做出一定的参考。With the increasing requirements of the construction standardization technology in China,the current permeability grouting treatment technique in the karst terrain cannot meet the construction requirements due to its construction procedure and large grouting material loss.The research scopes of this study are the following:to improve the grouting slurry-water ratio to be applied in the highway subgrade in the karst terrain,and to determine the improved permeability grouting results throughout the surface wave methods,pore water pressure measurement,and subgrade soil preloading evaluation.The results show that,after the improvement of permeability grouting operation,the performance indicators of all aspects of the subgrade soils have been improved to some extent,which shows that the slurry-water ratio improvement method proposed in this study is feasible and practical.It is hoped that this study can provide some reference for the improving the highway construction procedures in karst terrain.

关 键 词：岩溶地区 地基 注浆 浆液配比 

分 类 号：TU472[建筑科学—结构工程]