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根据地下高压钢筋混凝土岔管衬砌受内水压力开裂后的渗流场分布特征,采用非均质、主渗透方向各向异性的三维渗流场数值分析方法,模拟了岔管衬砌受内水压力后的流速矢量方向,从而解决了由于岔管体型的不规则性导致的流速矢量方向难以模拟的问题。通过对工程实例的计算和模拟,论证了程序的正确性。同时也为作用在围岩和衬砌上的渗透体积力计算提供了一种参考依据,为地下钢筋混凝土岔管设计也提供了一种有效的分析方法。
According to the distribution characteristics of the seepage field after undergoing water pressure cracking in underground high-pressure reinforced concrete bifurcation linings, a three-dimensional seepage field numerical analysis method of heterogeneity and main permeability anisotropy was used to simulate the bifurcation of bifurcated linings under internal water pressure Which can solve the problem of difficult to simulate the direction of the flow velocity vector due to the irregular shape of the bifurcation tube. Through the calculation and simulation of engineering examples, the correctness of the procedure is demonstrated. At the same time, it also provides a reference for the calculation of the volume of permeate forces acting on the surrounding rock and lining, and also provides an effective analysis method for the design of underground reinforced concrete bifurcation pipes.