期刊论文

Geostress Measurement and State Analysis of Mianhuakeng Mine

中文

铀矿冶

1000-8063

2023

42

04

1-7

10.13426/j.cnki.yky.2023.06.02

本校为第一机构

地应力测量是确定工程岩体力学属性，进行围岩稳定性分析，实现岩石工程开挖设计和决策科学化的前提条件。随着棉花坑矿井开采深度的不断增加，复杂构造应力对巷道和采场围岩稳定性产生的影响日趋显现。为了掌握该矿深部岩体地应力分布情况，提高井下工程设计的科学性、安全性和经济合理性，采用空心包体应力解除法对该矿开展地应力测量研究，分析其应力状态和分布规律。研究结果表明，在该矿区埋深615～715 m范围内，水平最大主应力为22.5～29.8 MPa,最大主应力与垂直应力分量之比为1.5～1.7;各主应力大小随深度增加呈线性增长；各测点水平最大主应力方向具有较强的一致性，介于91.2～110.3°,...

Geostress measurement is a necessary prerequisite for determining the attributes of engineering rock body mechanics,analyzing the stability of the surrounding rock,and realizing the scientific excavation design and decision-making of rock engineering.With the depth of m...MORE Geostress measurement is a necessary prerequisite for determining the attributes of engineering rock body mechanics,analyzing the stability of the surrounding rock,and realizing the scientific excavation design and decision-making of rock engineering.With the depth of min...