滇东岩溶地区帷幕灌浆单位注灰量与单位透水率相关分析  

Correlation analysis of unit ash injection amount,unit permeation rate of curtain grouting in karst area of East Yunnan

作　　者：王冬升 WANG Dongsheng(Yunnan Nengyang Water Conservancy and Hydropower Survey and Design Co.Ltd.,Qujing 655000,China)

机构地区：[1]云南能阳水利水电勘察设计有限公司,云南曲靖655000

出　　处：《水利水电快报》2021年第8期67-72,共6页Express Water Resources & Hydropower Information

摘　　要：由于碳酸岩地区岩溶洞(隙)的发育具有较高的不均一性,在岩溶防渗工程中,帷幕灌浆的单位注灰量对工程投资影响较为突出。为更好地了解岩溶地区帷幕灌浆的规律,结合几个岩溶区帷幕防渗工程的实测资料,对岩体的单位注灰量与单位透水率及其帷幕灌浆压力之间的相互关系进行了一元和二元双对数回归分析。结果表明:单位注灰量随单位透水率的增大而增加,并伴随灌浆压力的增大也相应增加,之间存在指数函数关系,且显著相关。论文研究成果可为类似工程帷幕灌浆单位的注灰量预测提供相对可靠的资料。In karst seepage control projects,due to the high heterogeneity in the development of karst caves(gaps)in carbonate areas,the unit ash injection amount of curtain grouting plays an important role in the engineer⁃ing investment.In order to understand clearly the law of curtain grouting in karst areas,based on the measured data of several curtain anti-seepage projects in karst areas,the relationship between the unit ash injection amount of rock mass,the unit permeability rate and the curtain grouting pressure are analyzed by one-dimensional and two dimensional double logarithmic regression.The results shows that the unit ash injection amount will increase with the increase of the unit permeability rate and the grouting pressure.There is a significant correlation in exponential function,which can provide relatively reliable data for the prediction of the unit ash injection amount of curtain grouting in similar projects.

关 键 词：帷幕灌浆 单位注灰量 单位透水率 岩溶地区 云南东部 

分 类 号：TV534.5[水利工程—水利水电工程]