摘要
以拟建成都市地铁7号线某站为例,建立基坑体积大小相同仅长宽比不同的块状(圆形)、条形基坑模型,分别计算其涌水量。计算结果表明:在基坑体积大小及地质条件相同的情况下,块状(圆形)、条形基坑的涌水量都随着长宽比的增大而增大。同时指出,在预测基坑涌水量时,必须充分认识工作地区的工程地质、水文地质条件,尽可能采用多种计算公式,并结合地区经验类比,可提高预测的准确性。
Taking a station of Chengdu Metro Line 7 to be constructed as an example, this paper established the models of massive （cylindrical） and strip foundation pit that have the same volume and different length- width ratio to calculate the water inflow respectively. The results show that where the foundation pit volume and geological conditions are the same, the water inflow of the massive （cylindrical） and strip foundation pits increases with the increase of the length-width ratio; simultaneously, when predicting the water inflow of foundation pit, the engineering geological and hydrological conditions in the working place must be understood fully, so as to increase the accuracy of the prediction.
出处
《路基工程》
2013年第6期170-173,共4页
Subgrade Engineering
关键词
地铁工程
基坑
涌水量
预测
metro project
foundation pit
water inflow
prediction
