金沙江昌波水电站厂房坝段深覆盖层基础处理  

Deep Overburden Foundation Treatment of The Dam Section for Changbo Hydropower Station in Jinsha River

作　　者：杨盛 YANG Sheng(PowerChina Guiyang Engineering Corporation Limited,Guiyang550081,China)

机构地区：[1]中国电建集团贵阳勘测设计研究院有限公司

出　　处：《西北水电》2019年第5期34-38,共5页Northwest Hydropower

摘　　要：金沙江昌波水电站厂房置于深覆盖层之上,其基础需要进行处理,才能保证厂房正常运行。处理方法有很多,如换填法、复合地基法等;但是对于地基应力较大的电站,地基承载力也成为一项关键性控制因素,同时还应严格控制沉降量。一般情况下会采用桩的形式对地基进行处理。振冲碎石桩与混凝土灌注桩均可以达到以上效果。计算表明:混凝土灌注桩为最有效、最实用的处理深覆盖层基础处理的方式。The powerhouse of Changbo Hydropower Station in Jinsha River is situated on a deep overburden,and its foundation needs to be treated to ensure the normal operation of the powerhouse.There are many treatment methods,such as the replacement method and the composite foundation method.However,for hydropower stations with large foundation stress,the bearing capacity of the foundation is also a key control factor,and the settlement should also be strictly controlled.In general,the foundation is treated with piles.Both the vibrating gravel pile and the concrete pouring pile can achieve the above-mentioned treatment effects.The calculation shows that the concrete pouring pile is the most effective and practical way for treatment of foundation with deep overburden.

关 键 词：深覆盖层 复合地基 桩基础 昌波水电站 

分 类 号：TV223.2[水利工程—水工结构工程]