采矿与安全工程学报2016，Vol.33Issue(2)：220-225,6.DOI:10.13545/j.cnki.jmse.2016.02.005
关键层的复合效应及其对矿压显现的影响
Composite effect of key stratum and its influence on strata behaviors
摘要
Abstract
In order to analyze the effect of movement of key neighboring strata on the pressure of longwall mining, and reveal the mechanism of the composite effect of key stratum, failure characteris-tics of two key neighboring strata and broken law have been studied by using electrical testing technol-ogy. And through making the characteristics verified by the pressure data in the test section, the paper has figured out that the stope pressure step is of a big and a small periodical change under the influence of the composite effect of key strata. Thus, the spatial structure model of the type of overlaying strata has been established. According to the structural relationship of key blocks in the model, the support working values of the working faces have been obtained, which have turned out to be in accordance with the measured results, and finally has offered basis of the control of surrounding rock under similar geological conditions.关键词
关键层/复合效应/空间结构/矿压显现Key words
key stratum/composite effect/spatial structure/strata behaviors分类
矿业与冶金引用本文复制引用
付宝杰,高明中,涂敏,张平松..关键层的复合效应及其对矿压显现的影响[J].采矿与安全工程学报,2016,33(2):220-225,6.基金项目
国家自然科学基金项目(51574007，51421003)；中国矿业大学深部岩土力学与地下工程国家重点实验室开放基金项目(SKLGDUEK1509)；山东科技大学校杰出青年基金项目(2014JQJH105)；霍英东青年教师基金项目(141046) （51574007，51421003）
