摘要
大采高综放相比普通采高,割煤高度增加,导致顶板活动规律产生变化,顶板控制亦有差别。利用矿压观测手段了解初次来压及周期来压规律,并观察矿山压力的显现特征,进而研究上覆岩层运动规律,探讨支架适应性、支架-围岩关系以及建立采场模型。现以平朔井工三矿39105工作面为例,进行矿压观测,研究来压步距及矿压显现规律。
Compared with normal mining height, with the increase of the cutting height of large-mining-height fully mechanized mining, the law of roof activities changes and the roof control is different. By pressure observation methods, the law of the first weighting and periodic weighting are studied. On the observation of strata behaviors, overburden rock motion will be used to analyze support feasibility and relationship between support and surrounding rocks and to establish the mining area model. Taking the 39105 working face in Pingshuo Jinggong No. 3 Mine as an example, the mining pressure is observed to study the roof weight interval and strata behaviors.
出处
《山西煤炭》
2014年第2期23-25,共3页
Shanxi Coal
关键词
大采高
综采
放顶煤
矿压显现
large-mining-height
fully-mechanized mining
top coal caving
strata behaviors
