【作者】 王国法；

【Author】 Wang Guofa;Beijing Mining Research Institute of CCRI;

【机构】 天地科技股份有限公司开采所事业部煤炭科学研究总院北京开采研究所；

【摘要】 分析放顶煤液压支架架型与围岩的适应性,剖析四柱正四连杆式放顶煤液压支架前后柱受力不均衡及影响支护效果的因素,提出两柱掩护式放顶煤液压支架设计思想,架型结构适应性试验分析。更多还原

【Abstract】 The adaptability of support construction and surrounding strata are analyzed.The state of compressure unequilibrium between front leg and back leg in lemmiscate link powered support are studied.The two-leg shield support in top coal caving working face is advanced.Its design idea and support construction adaptability is introduced.更多还原