广州轨道交通六号线金沙洲段灰岩的水岩相互作用对岩体强度的影响

The Influences of Water-Rock Interaction on the Strength of Imestone Rock Mass in the Limestone in Jin Sha Zhou Section of Line 6 of Guangzhou Underground Railway

本文通过对广州轨道交通六号线的金沙洲段部分岩样的单轴抗压强度、抗剪强度进行统计和计算,分析了地下水的水岩相互作用对于研究区灰岩岩体的强度影响,得到这种作用在局部对岩体强度的影响相当大——使得岩块单轴抗压强度的最大损失为81.3%、结构面抗剪强度的最大损失为78.5%,但是这种腐蚀损伤的程度在岩体中是相当不均匀的。

The author selected the Line 6 of Guangzhou underground railway as an example for study, and chose the areas occupied by the Jin Sha Zhou section of the Line 6 and the accessory structures as the researching area, calculates the strengths of the shear uniaxial compressive strength, to investigate the effect of the interaction between the groundwater and the limestone on the strength of the limestone rock mass And gained this processes have a great influence on the strengths of the rock masses in part of the research area-the maximum proportions of the loss of the strengths of the uniaxial compressive strengths of the rock block is 81.3%, and the maximum proportion of the loss of the strengths of the shear strengths of structural plane is 78.5%. but the erosion injure in the rock is very uneven.