论文部分内容阅读
本文以1个地面深孔和3个平洞浅孔的地应力实测资料为依据,对枸皮滩枢纽地下厂房区进行三维地应力场分析。简述了对自重应力场和地质构造应力场建立比较符合实际的数学计算模型,进行模拟计算和应力回归分析的方法。通过分析计算,对该区的地应力场的变化规律、地质构造应力场的主压应力方向、地下厂房围岩的地应力状态等,有了较深的认识。
In this paper, based on the measured data of 1 ground deep hole and 3 shallow hole of flat hole, the 3D ground stress field of the underground plant area of the Goupitan hydropower station is analyzed. This paper briefly describes the establishment of a more realistic mathematical calculation model of the self-weight stress field and the geological tectonic stress field, and the methods of simulation calculation and stress regression analysis. Through the analysis and calculation, the variation of the in-situ stress field in the area, the principal compressive stress direction of the geologic tectonic stress field and the in-situ stress state of the surrounding rock of the underground powerhouse have a deeper understanding.