旁压试验在广州地铁勘察工程中的应用

Application of Pressure Meter Test to Subway Investigation in Guangzhou

通过分析在广州轨道交通某支线地铁勘察中所得到的旁压试验数据,获得了其沿线不同区间内典型控制地层的P-V曲线,并由这些曲线确定相应的总静止土压力、临塑压力、极限压力及其旁压模量等岩土体力学参数,为地铁设计与盾构施工提供了相关参数,对相关工程有借鉴意义。

Through the analysis the pressure meter test data that is gotten from investigation of certain branch of Guangzhou Rail Transit, it got the P - V curve of the controlled layer in different intervals along the line. Moreover, with these curves,the geotechnical parameters for the static lateral pressure, critical plastic pressure and the pressure meter modulus can be concluded correspondingly, which in turn provides some parameters to the subway design and shield con- struetion. Therefore, it shed some light on some related engineering.