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Discussion of new sealing method of deep water-permeable stratum under super soft ground in vacuum pre-loading

SUN Tian-lei,LIN Yong-chao,YANG Fu-lin,ZANG Shao-hui(Engineering Technology Research Company,Ltd.of CCCC Forth Harbor Engineering Company,Ltd.,Guangzhou 510230,China)  
In view of the high cost,poor sealing effect,and danger in construction of the traditional sealing method for the water-permeable stratum under super soft ground in vacuum pre-loading,a new method,which uses a refitted geological drilling machine,is put forward.It can solve the sealing problem of the water-permeable stratum under super soft ground.Through practical application of soft ground treatment at the Guangzhou CSSC Longxue Shipping Base,and through observation of contrasts in the sealing effect,cost,and time spent in the traditional method and the new one,the new sealing method is shown to be simple,efficient and low-cost,so it has certain application value.
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