水利水电技术2017，Vol.48Issue(8)：74-80,7.DOI:10.13928/j.cnki.wrahe.2017.08.015
变质砂岩地质条件下的帷幕灌浆试验研究
Experimental study on curtain grouting under geological condition of metasandstone
摘要
Abstract
For the geological condition of metasandstone particular for the dam of Sanhekou Water Control Project,an experiment of curtain grouting is made,so as to verify whether the construction of the curtain grouting for the dam foundation can meet the design anti-seepage requirement or not,and then analyze the engineering geological condition,experiment scheme and its implementation effect concerned.The experiment result shows that the permeable rate and the mean unit amount of grout injection,the pressure water permeable rates of the holes of all the sequences and the unit amount of grout injection present the obvious successively decreasing trends.Both the uplift observation holes and the quality inspection holes meet the design standards for the curtain grouting experiment all the time during the experiment.The sonic wave velocities of the sonic wave testing holes after the grouting are averagely increased by 10.68％.The effect of the curtain grouting experiment is better,thus not only the grouting parameters suitable for the curtain grouting under the geological condition of metasandstone of this project are determined,but a reference basis is also provided for the popularization and application of them to the similar projects.关键词
三河口水利枢纽/变质砂岩/帷幕灌浆/声波测试/抬动观测/物探测试/陕西省Key words
Sanhekou Water Control Project/metasandstone/curtain grouting/sonic wave testing/uplift observation/geophysical testing/Shaanxi Province分类
建筑与水利引用本文复制引用
罗畅,聂永,党建涛..变质砂岩地质条件下的帷幕灌浆试验研究[J].水利水电技术,2017,48(8):74-80,7.基金项目
国家重点研发计划项目(2016YFC0401805) （2016YFC0401805）
2013年陕西省科技统筹创新工程计划项目(2013KTZB-03-01-01) （2013KTZB-03-01-01）
