| 深部巷道不同支护形式的对比计算分析 |
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| 引用本文： | 宋锦虎,惠功领,马元.深部巷道不同支护形式的对比计算分析[J].矿冶工程,2010,30(4). |
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| 作者姓名： | 宋锦虎 惠功领 马元 |
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| 作者单位： | 1. 河南城建学院,土木工程系,河南,平顶山,467044;东南大学,岩土工程研究所,江苏,南京,210096
2. 中国矿业大学,建筑工程学院,江苏,徐州,221008 |
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| 基金项目： | 国家自然科学基金项目资助，教育部科学技术重点科技项目资助 |
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| 摘 要： | 为获得深部巷道的合理支护方法,针对平煤四矿深部巷道,采用ANSYS软件,对被动支护、底板开放式锚杆组合拱支护、全断面预应力锚杆支护、关键部位加强支护等不同支护形式进行了对比计算分析。计算结果显示,支护阻力大于0.2 MPa之后对巷道变形的控制作用较小,仅通过提高被动支护阻力难以控制巷道变形;与底板开放式锚杆支护相比较,全断面预应力锚杆支护可显著减小巷道变形,利于围岩承载结构的形成;关键部位锚索支护可减小围岩应力集中程度,同时使深部围岩承担荷载,提高浅部围岩稳定性。综合分析得知,对于深部巷道需采用强化支护结构强度、调动围岩承载能力、关键部位加强支护、全断面预应力锚杆支护等手段。
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| 关 键 词： | 深部巷道 主动支护 全断面支护 关键部位 数值计算 |
Numerical Calculation of Different Support in the Deep Roadway |
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| SONG Jin-hu,HUI Gong-ling,MA Yuan.Numerical Calculation of Different Support in the Deep Roadway[J].Mining and Metallurgical Engineering,2010,30(4). |
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| Authors: | SONG Jin-hu HUI Gong-ling MA Yuan |
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| Affiliation: | SONG Jin-hu1,2,HUI Gong-ling3,MA Yuan3(1.Department of Civil Engineering,Henan University of Urban Construction,Pingdingshan 467044,Henan,China,2.Institute of Geotechnical Engineering,Southeast University,Nanjing 210096,Jiangsu,3.School of Mechanics & Civil Engineering,China University of Mining and Technology,Xuzhou 221008,China) |
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| Abstract: | To obtain a reasonable support method for deep roadway underground,numerical calculation has been made with ANSYS software for several support methods,including passive support,built-up anchor support by bolting with open floor,pre-stressed bolting support around the cross-section and reinforced support on the key position,aiming at deep roadway in the Fourth Mine of the Pingdingshan Colliery Group Co Ltd.The calculation results show,while the support resistance is more than 0.2 MPa,it has a little control ... |
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| Keywords: | deep roadway underground active support support around the cross-section key position numerical calculation |
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