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| Improvement of water pressure distribution along the structural plane in rock slopes |
| LI Wei1，2，XIAO Rong3，WU Lizhou2 |
| (1. College of Environment and Civil Engineering，Chengdu University of Technology，Chengdu，Sichuan 610059，China；2. State Key Laboratory of Geological Hazard Prevention and Geological Environment Protection，Chengdu University of Technology，Chengdu，Sichuan 610059，China；3. College of Literature and News Media，Yibin University，Yibin，Sichuan 644000，China) |
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Abstract It is important to study the hydrostatic pressure distribution along the structural plane in rock slopes，which is helpful to accurately assess the slope stability and to provide a reasonable suggestion for studying the failure mechanism of this kind of slope. A revised water pressure distribution was proposed to avoid the shortcomings of the traditional assumption of pressure distribution along the structural plane. The hydrostatic pressure distribution is related to the water height in the tension crack，the length of the structural plane and the dip angle. The concepts of the initial hydrostatic pressure and transfer effect are proposed. The transfer effect at each point on the structural plane decreases linearly with the increase of the distance from the point to the start point of the structure plane. The equation for calculating the new hydrostatic pressure distribution is derived and presented in detail. Meanwhile，the equation for calculating the hydrodynamic pressure on the structure plane is also obtained. Finally，the new assumptions and proposed methods are verified based on the analysis of slope stability under the assumptions of different water pressure distributions.
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2017, Vol. 36 
