淤地坝蓄水加固改造方案的渗流和稳定性分析.

In order to impound and reinforce warping dams, hascx-l on the fluid solid coupling theory ;md strength reduction method, this paper analyzed the seepage and stability of Hejiazhuang warping dam during its impoundment operation hy using ABAQUS finite clement software, put forward the ideas of seepage prevention and reconstruction such as day inclined wall m1d geomemlmme and calculated and analyzed the stability m1d seepage characteristics of each reconstruction scheme. The results show that : the numerical simulation method used in this paper is foasihle compared with traditional methods ; as a water and soil conservation measure, Hejiazhuang main warping dam did not consider long-term water storage in the original design. If the water storage is normal according to the design standard, its stability docs not meet the requirements, so it needs to he reinforced and reconstructed, and it is difficult to achieve the expected dfcx·t only by using the way of upstream dam slope slowing down ; both the gcomembrane reconstruction scheme and the day inclined wall 1u·onstruction scheme can improve the safety c<x~fficient of dam lx1dy and reduce the 1x1sition of phreatic line and reduce the seepage; the scheme of laying geomemlmme on the upstremn slo1x ~ of the original dam body and the laying of day inclined wall with the thickness of 3 m cm1 meet the stability requirements . [ABSTRACT FROM AUTHOR]