| 综放采场来压阶段支架载荷的计算 |
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| 引用本文： | 刘金海,姜福兴,朱斯陶.综放采场来压阶段支架载荷的计算[J].力学与实践,2015,37(2):189-192. |
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| 作者姓名： | 刘金海 姜福兴 朱斯陶 |
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| 作者单位： | 1. 华北科技学院安全工程学院, 北京 101601;2. 北京科技大学土木与环境工程学院, 北京 100083 |
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| 基金项目： | 中央高校基本科研业务费项目(3142014067);河北省高等学校科学技术研究基金(QN2014329)资助项目 |
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| 摘 要： | 基于综放采场支架围岩关系,建立了综放采场来压阶段支架载荷计算模型,引入三铰拱平衡原理推导出来压阶段支架冲击载荷的计算公式.以山东某矿1306综放工作面为例,应用上述模型和公式,得到来压阶段支架冲击载荷为7.19MN,支架载荷为13.3MN,与实测结果13.11MN基本一致,验证了计算模型的有效性,从而为综放采场来压阶段支架载荷计算和支架选型提供了理论依据.
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| 关 键 词： | 综放采场 来压阶段 支架载荷 冲击载荷 |
| 收稿时间： | 2014-05-08 |
CALCULATION OF SUPPORT LOAD DURING CYCLIC WEIGHTING IN FULLY-MECHANIZED SUBLEVEL CAVING FACE |
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| LIU Jinhai,JIANG Fuxing,ZHU Sitao.CALCULATION OF SUPPORT LOAD DURING CYCLIC WEIGHTING IN FULLY-MECHANIZED SUBLEVEL CAVING FACE[J].Mechanics and Engineering,2015,37(2):189-192. |
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| Authors: | LIU Jinhai JIANG Fuxing ZHU Sitao |
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| Institution: | 1. Safety Engineering College, North China Institute of Science and Technology, Beijing 101601, China;2. School of Civil and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China |
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| Abstract: | Based on the relationship between the support and the surrounding-rock in a fully-mechanized sublevel caving face, a model for calculating the support load during cyclic weighting is built, and the formula for calculating impact load on the support during cyclic weighting is obtained based on the principle of the three-hinged arch balance. The model and the formula are applied to the no.1306 working face, and it is shown that the impact load on the support during cyclic weighting is 7190 kN, and the support load during cyclic weighting is 13300 kN. According to the measured results, the support load during cyclic weighting is 13110 kN. The effectiveness of the model for calculating the support load during cyclic weighting in the fully-mechanized sublevel caving face is thus verified. The method can be used for the support selection and the support load calculation during cyclic weighting in the fully-mechanized sublevel caving face. |
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| Keywords: | fully-mechanized sublevel caving face weighting support load impact load |
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