保山市桥街水电站厂房基础处理设计  

Design of Foundation Treatment for Powerhouse of Qiaojie Hydropower Station in Baoshan City

作　　者：阮璐 RUAN Lu(Yunnan Institute of Water&Hydropower Engineering Investigation,Design and Research,Kunming 650021,China)

机构地区：[1]云南省水利水电勘测设计研究院,云南昆明650021

出　　处：《云南水力发电》2021年第7期125-130,共6页Yunnan Water Power

摘　　要：针对软基上的河床式水电站厂房的基础处理进行分析计算研究。因厂房建基面为第三系微成岩的卵粒岩组夹砂粒岩组地层,强度较低,采用抗剪公式和抗剪断公式对建基面的抗滑稳定进行复核后不满足规范要求,对地基承载力进行计算后亦不满足规范要求,因此对该厂房基础采取了现浇钢筋混凝土灌注桩的地基处理措施。经过桩基处理计算,厂房抗滑及承载力等指标均满足了规范要求。目前厂房运行已超2a,各项指标正常。In this paper,the foundation treatment of riverbed powerhouse of hydropower station on soft foundation is analyzed and calculated.The building base surface of powerhouse is the strata of pegmatite group with sandy pegmatite group of tertiary microdiagenetic rocks.After checking the stability against sliding of the foundation surface with shear formula and shear formula,it is found that the foundation does not meet the specifications and the bearing capacity of the foundation does not meet the specifications.Therefore,the foundation treatment measures of cast-in-place reinforced concrete cast-in-place piles are adopted for the foundation of the powerhouse.After treatment and calculation of pile foundation,indexes such as sliding resistance and bearing capacity of power house meet the requirements of specifications.At present,the plant has been in operation for more than two years and all indexes are normal.

关 键 词：软基 河床式水电站厂房 抗滑稳定及地基承载力 桩基处理 

分 类 号：TV731.1[水利工程—水利水电工程] TV223.32