Soil Engineering and Foundation

Soil Engineering and Foundation ›› 2019, Vol. 33 ›› Issue (6): 704-708.

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Effective Hydrostatic Pressure of Slurry and Its Role in Stabilizing the Slurry Wall Excavation

The quality of the mud cake is critical to the quality of the slurry wall construction for the seepage control. In current engineering practice, the preparation of slurry in the construction is mainly relied on the empirical method. In order to have a better understanding of the formation of mud cake in the slurry wall construction, parameters that resulting the formation of mud cake and the trench wall stability are related. The results indicated that when strength of the mud cake reaches 0.125 MPa and the trench excavation rate is less than 0.5 m/h, the stability of the cobble layer can be maintained during the excavation.   

  1. (1.CCCC Wuhan Harbor Engineering Design & Research Institute Co.,Ltd., Wuhan 430040;
    2.School of Civil Engineering and Architecture, Wuhan University of Technology, Wuhan 430070;
    2.China Power Construction Group Railway Construction Co., Ltd., Beijing 100080)
  • Received:2019-04-03 Revised:2019-04-22 Online:2019-12-28 Published:2019-12-28

Abstract: The quality of the mud cake is critical to the quality of the slurry wall construction for the seepage control. In current engineering practice, the preparation of slurry in the construction is mainly relied on the empirical method. In order to have a better understanding of the formation of mud cake in the slurry wall construction, parameters that resulting the formation of mud cake and the trench wall stability are related. The results indicated that when strength of the mud cake reaches 0.125 MPa and the trench excavation rate is less than 0.5 m/h, the stability of the cobble layer can be maintained during the excavation.

Key words: Slurry Method, Mud Cake, Trench Wall Stability, FLAC Software, Numerical Analysis

CLC Number: