空间岩体裂隙网络灌浆数值模拟研究

为提高和评估岩体灌浆效果,研究和预测浆液在空间岩体裂隙网络内的渗透规律,结合宾汉流体在单一光滑倾斜裂隙内的流动公式,建立了空间岩体裂隙网络的宾汉浆液渗流和裂隙变形耦合模型。在此模型上对灌浆进行实时模拟。另外还研究了灌浆过程中裂隙变形及对灌浆的影响。计算结果表明,通过该模型可预测浆液在岩体中渗透状态,改进灌浆参数。

Numerical simulation of grouting in space fracture network of rock mass

To improve and evaluate the effect of grouting,and to study and predict the pervasion law of grouts in space fracture network of rock mass,a seepage model for the Binghamian grouts flowing in space fracture network was put forward combining with the flow formula of Binghamian grouts in single smooth and inclined fracture.On the basis of the model,the grouting was real-timely simulated.In addition,the deformation of fractures and its effect upon grouting were studied during the process of grouting.It was indicatd that the grouting effect could be predicted and improred by the present model.