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苏士龙,高海海,周康乐. 基于统一强度理论的巷道围岩松动圈计算方法[J]. 科学技术与工程, 2020, 20(27): 11045-11050.
SU Shi-long,GAO Hai-hai,ZHOU Kang-le.Calculation Method of Roadway Surrounding Rock Loose Circle Based on Unified Strength Theory[J].Science Technology and Engineering,2020,20(27):11045-11050.
基于统一强度理论的巷道围岩松动圈计算方法
Calculation Method of Roadway Surrounding Rock Loose Circle Based on Unified Strength Theory
投稿时间:2019-10-27  修订日期:2020-08-16
DOI:
中文关键词:  围岩松动圈 统一强度理论 理论计算 现场测试
英文关键词:surrounding rock loose circle unified strength theory theoretical calculation field test
基金项目:
        
作者单位
苏士龙 华晋焦煤有限责任公司
高海海 山西华晋吉宁煤业有限责任公司
周康乐 山西华晋吉宁煤业有限责任公司
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中文摘要:
      针对不同强度准则计算松动圈的适用性问题,基于围岩弹塑性理论,采用统一强度理论推导了巷道围岩松动圈理论计算公式。依托实际工程,采用Mohr-Coulomb准则、Hoek-Brown准则和统一强度理论对巷道围岩松动圈厚度进行理论计算。将理论计算结果和现场测试结果进行对比,发现基于Mohr-Coulomb准则计算松动圈厚度大于现场测试结果,基于Hoek-Brown准则计算松动圈厚度小于现场测试结果,同时二者的理论计算厚度与现场测试结果相差较大。而统一强度理论计算松动圈厚度和现场测试结果比较接近。因此,统一强度理论适用于巷道围岩松动圈理论计算。
英文摘要:
      According to the applicability of different strength criteria for calculating the loose circle, the theoretical formulas for calculating the loose circle of roadway surrounding rock are derived based on the elastic-plastic theory of surrounding rock by using the unified strength theory. Relying on the practical engineering, the thickness of surrounding rock loose circle of roadway is calculated theoretically by Mohr-Coulomb criterion, Hoek-Brown criterion and unified strength theory. And the theoretical calculation results are compared with the field test results. It is found that the thickness of loose circle calculated based on Mohr-Coulomb criterion is larger than the field test results, and the thickness of loose circle calculated based on Hoek-Brown criterion is smaller than the field test results. At the same time, the difference between the theoretical calculation thickness of the two methods and the field test result is large. However, the calculation of the thickness of the loose circle by the unified strength theory is close to the field test results. Therefore, the unified strength theory is applicable to the theoretical calculation of surrounding rock loose circle of roadway.
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