摘要
普沙渡槽布置在普沙河河道内,两端地质条件较好,中间段覆有较厚淤泥质粘土层,部分区域埋深及软土土层厚度均较大,且为软塑状,地基较为软弱,沉降变形难以控制,故淤泥质粘土的处理研究,为探寻普沙渡槽地基处理较优方案的根本出发点。结合普沙渡槽现场地形地质条件,对比多种软基处理方案的优缺点,推荐采用混凝土灌注桩为普沙渡槽软基处理方案,自2013年通水至今运行正常。
Pusha aqueduct is arranged in Pusha River,and geological conditions at both ends of the aqueduct are good.The middle section is covered with thick silty clay layer.The buried depth in some areas and the thickness of soft soil layer are both large and are soft plastic.The foundation is relatively weak and the settlement and deformation are difficult to control.Therefore,the treatment research of silty clay is the basic starting point for exploring a better foundation treatment scheme for Pusha aqueduct.Combining with the topographic and geological conditions of Pusha aqueduct,this paper compares the advantages and disadvantages of various soft foundation treatment schemes,and recommends that concrete cast-in-place piles be used as soft foundation treatment scheme for Pusha aqueduct,which has been in normal operation since water was opened in 2013.
作者
桂重
郑小芳
GUI Zhong;ZHENG Xiao-fang(Power China Kunming Engineering Corporation Limited,Kunming 650051,China)
出处
《云南水力发电》
2021年第7期160-163,共4页
Yunnan Water Power
关键词
牛栏江—滇池补水工程
普沙渡槽
软基处理
钢筋混凝土钻孔灌注桩
Niulanjiang-Dianchi Water Supply Project
Pusha aqueduct
soft foundation treatment
reinforced concrete bored cast-in-place pile
