| 地下软岩工程可靠度研究 |
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| 引用本文： | 何满潮,苏永华.地下软岩工程可靠度研究[J].岩土工程学报,2003,25(1):55-57. |
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| 作者姓名： | 何满潮 苏永华 |
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| 作者单位： | 中国矿业大学(北京校区)；湖南大学土木工程学院 北京100083中国地质大学；北京100083；湖南长沙410082； |
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| 基金项目： | 国家杰出青年基金资助项目 (5982 51 1 4 ) |
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| 摘 要： | 软岩工程是岩体力学研究领域的难点问题之一。影响地下软岩工程围岩稳定性因素比一般的岩体工程存在更大的随机性和不确定性 ,因此 ,在地下软岩工程围岩稳定性分析方法中开展可靠度方法的研究是非常必要的。本文分析了软岩工程围岩的物理和力学参数的随机性。根据煤矿地下软岩巷道特点 ,建立了在近水平层状力学介质中和似连续力学介质中这两类主要软岩巷道围岩在锚喷支护下的可靠度分析方程。工程实例分析验证本文的研究结论是可信的 ,展示了其广阔的应用前景。
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| 关 键 词： | 软岩工程 可靠度 随机性 围岩 |
| 文章编号： | 1000-4548(2003)01-0055-03 |
| 修稿时间： | 2001年11月25 |
Research on reliability of underground soft rock engineering |
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| HE Manchao,SU Yonghua.Research on reliability of underground soft rock engineering[J].Chinese Journal of Geotechnical Engineering,2003,25(1):55-57. |
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| Authors: | HE Manchao SU Yonghua |
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| Affiliation: | 1.China University of Mining Technology Beijing 100083 China 2.China University of Geosciencs Beijing 100083 China 3.Civil Engineering College of Hunan University Changsha 410082 China |
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| Abstract: | Soft rock engineering is a difficult problem of rock mechanics.There are much more randomness and uncertainty in soft rock than in general rock.Therefore,it is necessary to develop reliability approach in stability analysis of surrounding rock for underground soft rock engineering.Randomness of physical and mechanical parameters of soft rock was analyzed in this paper.According to the feature of underground soft rock roadway of coal mine,reliability analysis equations for two types of surrounding rock,which are approximately horizontal medium and quasi continuous medium,were established under the condition of surrounding rock supported by bolt mesh arch. The case study proved that result obtained in this paper is accurate with bright future of application. |
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| Keywords: | soft rock engineering reliability degree random surrounding rock |
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