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shallow lying coal seam 浅埋煤层
Shallow - lying coal seam 浅埋煤层
Because overlying Strata upon shallow coal seam is thin, movement and stress behaviors of overlying Strata all bear particularity during mining. 浅埋煤层由于上覆岩层较薄，在回采过程中，上覆岩层的移动及矿山压力的显现，均具有特殊性。
Whereas the character of roof's movement and falling caused by coal seam is shallow in Shen-dong mine district, the workface advance rate must be picked up dur... 鉴于神东矿区煤层埋藏浅而引起的顶板移动、跨落特点，在回采过程中加快工作面推进速度，能够比较有效的控制顶板岩层。
Coal miners; coal seams; coal haulers. 煤矿工; 煤层; 运煤工
The No.12404 working face of Daliuta coalmine has a shallow buried coal seam under thick loosened aquifer with only thin bedrock there under,and the Muhe runnel flowing across on the surface. 大柳塔煤矿12404工作面煤层埋深浅、上覆基岩薄、松散含水层厚,地表让有母河沟横过。
To solve strata pressure control of shallow coal seam with thick sand and thin bedrock, in-situ observation was carried out in Baoshan mine 6101 fully mechanized coalface, which is the first coalface. 摘要为解决厚砂层薄基岩浅埋煤层矿压控制问题，对宝山煤矿6101综采工作面（首采）进行现场实测。
Coal seams intermixed with iron ore. 煤层和铁矿混杂在一起。
The Gaussian curvature of No.3 coal seam in Qinshui basin is calculated. 计算了沁水盆地3号煤层的高斯曲率。
Factors affected coal seam permeability change and its law is analyzed. 分析了煤层透气性变化的影响因素及变化规律。
The outburst-proneness of 6# coal seam are studied with five indexes. 采用5种指标对该矿6%23煤层冲击倾向性进行了实验研究。
Coal seams intermixed with iron ore . 煤层和铁矿混杂在一起。
The way and principle of Gaussian curvature method for forecasting natural fracture zones in coal seam are discussed. 摘要论述了高斯曲率法预测煤层天然裂隙发育区的基本原理和方法。
waterflooding in shallow hole at coal seam 煤层浅孔注水
shallow and supper thick coal seam 浅埋特厚煤层
shallow coal seam with thin bedrock 薄基岩浅埋煤层
Outburst prevention technique of excavating in coal seam will be directly concerned colliery safety production and excavates taking over. 摘要突出煤层煤巷掘进防突直接关系到煤矿的安全生产和采掘接替。
the shallow buried coal seam of thin base rock 薄基岩浅埋煤层
Long- wall double working- face combined winning technical practice in faull lager small section coal seam. 断层带小块段煤层走向长壁双工作面联合开采技术实践。
Research on coal bedding structure is the theory foundation and precondition of coal seam gas exploitation. 煤体层理结构的研究是煤层气开发开采的理论基础和前提条件。