摘要
通过对佛山市三水区魁岗泵站重建工程泵站场址的地质钻探,结合现场标准贯入试验、原位十字板剪切试验、原位静力触探试验、土层剪切波速测试等一系列勘察手段,以及类似工程经验,综合提出了岩土层的物理力学参数建议值。对泵站场址和进出水渠、管进行了工程地质评价及建议,其中:泵站建基面承载力较低,高压缩性,厚度变化大,易产生较大沉降和不均匀沉降,需要对下部淤泥质土层进行处理,建议采用桩基础;泵站基坑边坡抗剪强度低,稳定性差,易产生滑移、挤压变形等,且场区地下水位高,西侧为北江大堤,建议对基坑进行支护处理,并对周边建筑物监测。
At the site of Kuigang Pump Station Reconstruction Project located in Sanshui District of Foshan City, a series of surveying work were carried out including geological drilling, in situ standard penetration test, in situ vane shear test, in situ static penetration test and shear wave velocity test of soil layer, based on which and combined with experience of similar projects, the recommended physical and mechanical parameters of rock and soil layer, as well as site engineering geological evaluation and proposals were put forward. The foundation surface has fairly low bearing capacity, high compressibility, great change in thickness, and is liable to big and nonuniform settlement, which requires treatment of the underlying silt soil and pile foundation is suggested. The slope of foundation pit has low shear strength and poor stability, is liable to slip and crushing deformation, has high underground water level, and is adjacent to the Beijiang Dike to the west, so supporting treatment of foundation pit and monitoring of surrounding structures are required.
作者
于月娥
YU Yue-e(Guangdong Technical College of Water Resources ＆ Electric Engineering,Guangzhou 510635,China)
出处
《广西水利水电》
2018年第3期15-22,共8页
Guangxi Water Resources & Hydropower Engineering
关键词
泵站
进水渠
出水渠
软土地基
工程地质条件
分析
Pump station
inflow channel
outflow channel
soft soil foundation
engineering geological condition
analysis
