TESTING STUDY OF REDUCEMENT FACTOR FOR THE POREWATER PRESSURE OF UNDERGROUND STRUCTURE
浅埋地下结构外水压折减系数试验研究

A testing study is made to check if the pore water pressure of underground structure can be reduced or not. The test media are sand and clay. The test result shows that the pore water pressure of underground structure can not be reduced if the drainage works are not made.