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基于槽壁稳定性的地下连续墙成槽施工泥浆重度计算方法
（1中铁投资集团有限公司，北京 100055; 2中南大学土木工程学院，长沙 410075）
A Calculation method of slurry volume-weight during trenching construction of a diaphragm wall based on the stability of slot wall
(1 China Railway Construction Investment Group Corporation Limited, Beijing 100055; 2 School of Civil Engineering, Central South University, Changsha 410075)
Abstract：
Based on the limit equilibrium method, mechanical models for the overall stability and local stability of a slot wall are established, calculation formulas for the critical slurry volume weight values are derived to guarantee stability of the slot wall during trenching construction, a design method for the slurry volume weight is obtained on basis of slot wall stability during trenching construction of the diaphragm wall and a case application is carried out.The results show that the proposed calculation method for slurry volume weight is reliable and it suggests that slurry volume weight calculations under considering local stability of the slot wall should be taken when the similar project locates in loose strata with sand and pebbles.
.A Calculation method of slurry volume-weight during trenching construction of a diaphragm wall based on the stability of slot wall[J] MODERN TUNNELLING TECHNOLOGY, 2018,V55(1): 178-183
2018, Vol. 55 