四川某水电站坝基不均匀持力层承载力研究

Research on The Bearing Capacity of The Uneven Bearing Stratum in the dam foundatiuon of A hydro- electrical Power Station in Sichuan

四川某电站坝基位于厚层含漂(块)卵(碎)石层之上,存在结构及颗粒组成不均匀的特点,采用单一原位测试手段难于全面反映其力学特性,本工程通过超重型动力触探试验、预钻式旁压试验、浅层平板载荷试验的对比分析,综合选定了持力层承载力参数,对类似工程有一定的参考作用。

The dam foundation of a hydro- electrical power station in Sichuan located above the thick boulder（ gravel） pebble（ rubble）bed,whose structure and particle composition are inhomogeneous. Therefore,it is difficult to fully reveal its mechanical properties by single in- situ test. By the comparative analysis of the extra heavy dynamic penetration test,pre- drilling pressure meter test and shallow plate loading test,the bearing capacity parameters of the bearing layer was comprehensively proposed in the project. It has a certain referential functions for similar project.