| 论弹性基础变形效应对采场老顶活动规律的影响 |
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| 引用本文： | 蒋宇静.论弹性基础变形效应对采场老顶活动规律的影响[J].西安科技大学学报,1989(1). |
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| 作者姓名： | 蒋宇静 |
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| 作者单位： | 山东矿业学院矿压研究所 |
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| 摘 要： | 由于煤体及直接顶岩层的弹性压缩变形,老顶岩梁端部开裂前并不是处于理想的嵌固支承状态。本文深入地分析了由直接顶和煤层组成的弹性基础变形效应对老顶岩梁活动规律的影响,给出了列传统老顶岩梁来压步距公式进行修正的具体方法。研究成果对于指导现场预计顶板活动规律和进行控制设计具有重要意义。
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| 关 键 词： | 弹性基础变形效应 老顶活动规律 嵌固支持状态 |
THE INFLUENCE OF ELASTIC ELEMENTARY DISPLACEMENT EFFECT ON THE RULE OF MAIN ROOF MOVEMENT IN STOPE |
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| Jiang Yujing.THE INFLUENCE OF ELASTIC ELEMENTARY DISPLACEMENT EFFECT ON THE RULE OF MAIN ROOF MOVEMENT IN STOPE[J].JOurnal of XI’an University of Science and Technology,1989(1). |
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| Authors: | Jiang Yujing |
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| Institution: | Jiang Yujing |
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| Abstract: | Because of the elastical compressed displacement of the coal and immediate roof strata, the main roof strata beam is not in the ideally embedding support state before the breaking of the beam tips. The paper has deeply analysed the influence of elastical elementary displacement effect formed by the immediate roof and coal on the lav of main roof strata beam movement. The concrete method for revising the traditional weighting interval formula of the main roof strata beam is given. The research achivement has important significance for estimating the rule of roof move ment and making roof control-designing. |
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| Keywords: | elastic elementary displacement effeet the rule of main roof movement embedding support state |
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