A NEW CONSTRUCTION TECHNOLOGY FOR TYPE-Ⅱ JOINT OF UNDERGROUND DIAPHRAGM WALL
The quality of construction of slurry wall will directly affect the safety of foundation pit and the function of permanent support structure.Especially for deep foundation pit projects with complex geological conditions,ordinary construction technology of slurry wall joints can not meet the needs of use,and problems such as leakage will occur.In order to further improve the construction quality of slurry wall,taking a deep foundation pit project in Shanghai as an example,this paper introduces a Ⅱ-shanped joint construction technology of slurry wall under the condition of soft soil foundation.This technology can realize the independent construction of joints and slots.Finally,the actual construction effect is tested,and the results show that the good construction effect has been achieved,which provides a reference for the joint construction of slurry wall in the future.
underground diaphragm walltype-Ⅱ jointdeep foundation pit