不同固结压力下黑云变粒岩风化土的渗透特性  

Permeability characteristics of biotite granitic weathered soil under different consolidation pressures

作　　者：蔡永红 王坤 郭世达 安志伟 耿永根 CAI Yong-hong;WANG Kun;GUO Shi-da;AN Zhi-wei;GENG Yong-gen(North China University of Science and Technology,Tangshan,Hebei,063021,china;The 7th Geological Brigade of Hebei Provincial Bureau of Geology and Mineral Resources(Xiong′an Geological Survey and Monitoring Center of Hebei Provincial Bureau of Geology and Mineral Exploration and Development),Baoding 071000,Hebei,China;Donghuantuo Mining Branch of Kailuan(Group)Co.,Ltd.,Tangshan 063000,China)

机构地区：[1]华北理工大学,河北唐山063021 [2]河北省地矿局第七地质大队(河北省地质矿产勘查开发局雄安地质调查监测中心),河北保定071000 [3]开滦(集团)有限责任公司东欢坨矿业分公司,河北唐山063000

出　　处：《地下水》2024年第4期14-16,69,共4页Ground water

基　　金：河北自然科学基金资助项目(D2015209327)。

摘　　要：以唐山市司家营全风化黑云变粒岩风化土为研究对象,制备了2种不同类型的重塑土样,利用自制的渗透仪开展重塑土样的固结渗透试验。在不同固结压力下,测定重塑土样的的渗透系数,分析固结压力对土样渗透系数的影响。试验结果表明:随着固结压力的增加,土样不断压缩,当固结压力在800 kpa时土样的压缩量达到最大;随着固结压力的增加,土样的渗透系数逐渐降低。In this paper,two different types of remodeled soil samples were prepared from the completely weathered biotite granulite weathered soil in Sijiaying,Tangshan City,and the consolidation permeability test of the remodeled soil samples was carried out by using a self-made permeameter.Under different consolidation pressures,the permeability coefficient of reshaped soil samples was determined,and the influence of consolidation pressure on the permeability coefficient of soil samples was analyzed.The test results show that with the increase of consolidation pressure,the soil sample is continuously compressed,and the maximum compression amount of soil sample reaches when the consolidation pressure is 800kpa.With the increase of consolidation pressure,the permeability coefficient of soil samples gradually decreases.

关 键 词：黑云变粒岩 风化土 重塑土样 固结压力 渗透系数 

分 类 号：P641.2[天文地球—地质矿产勘探]