【摘要】 为了合理设置新元矿南条带3煤层回风大巷与辅运大巷支护参数，制定防突措施，运用空心包体应力解除法对3个测点进行地应力测试，基于测试数据计算出地应力分布规律。结果表明，3个测点的最大主应力分别为18.36、14.85、18.89 MPa,方向分别为158.02°、157.37°、158.51°;最小主应力分别为6.34、6.44、6.47 MPa,方向分别为188.30°、189.42°、192.22°;垂直应力分别为12.70、13.25、13.36 MPa,整体属中等应力值区。测区内应力场类型以水平应力占主导，最大主应力均为北西方向，巷道直应力基本上等于单位面积上覆岩层的质量。为了有效降低水平应力对巷道稳定性的影响，巷道方向应与最大主应力方向保持一致。在确定巷道方向时，需综合考虑工程地质条件、现场施工条件等因素，合理选择最佳的巷道轴线方向和断面形状，这种综合设计方法是减少巷道变形的关键措施。更多还原

【Abstract】 In order to reasonably set the supporting parameters of the return airway and the auxiliary transportation roadway of the No.3 Coal Seam in the south strip of Xinyuan Mine and formulate anti-outburst measures, the in-situ stress test was carried out at the three measuring points by using the hollow core inclusion stress relief method, and the in-situ stress distribution law was calculated based on the test data.The results showed that the maximum principal stresses at the three measuring points were 18.36,14.85,and 18.89 MPa, respectively, with directions of 158.02°,157.37°,and 158.51°;the minimum principal stresses are 6.34,6.44,and 6.47 MPa, respectively, with directions of 188.30°,189.42°,and 192.22°;the vertical stresses are 12.70 MPa, 13.25 MPa, and 13.36 MPa, respectively, and belong to the moderate stress range as a whole.The type of stress field in the test area is dominated by horizontal stress, the maximum principal stress is in the northwest direction, and the vertical stress of the roadway is basically equal to the weight of overlying strata per unit area.In order to effectively reduce the influence of horizontal stress on the stability of the roadway, the direction of the roadway should be consistent with the direction of the maximum principal stress.When determining the direction of the roadway, it is necessary to comprehensively consider the engineering geological conditions, on-site construction conditions and other factors, and reasonably select the best axis direction and section shape of the roadway.This comprehensive design method is a key measure to reduce the deformation of the roadway.更多还原