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- 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。
- the shallow buried coal seam of thin base rock 薄基岩浅埋煤层
- The strata behavior rule of Longwall face with individual props in shallowly buried coal seam covered with thick soil was summarized. 实验和观测表明,尽管其上覆岩层的力学强度比较小,煤层埋深浅,但工作面初次来压步距大,矿山压力显现剧烈,周期来压台阶下沉量大。
- Research of bolt support in large section gateway in the shallow buried coal seam of thin base rock 薄基岩浅埋大断面煤巷锚杆支护技术
- shallowly buried coal seam under soil strata 土层覆盖下浅埋煤层
- Keywords shallowly buried coal seam under soil strata;ground pressure;numerical simulation;support working resistance; 关键词土层覆盖下浅埋煤层;矿压显现;数值模拟;支架工作阻力;
- As we know,CO_2 has a higher adsorbability than CH_4.If CO_2 is injected into coal seam,CH_4 can be replaced by CO_2.By using this technology,we can develop the deeply buried coal bed methane in most of our coal basins. CO2的吸附能力是CH4的4倍以上,如果把CO2通过钻井注入到深部煤层中,由于其吸附能力的差异,CH4会被优先置换出来,利用该技术一方面实现封存CO2的目的,同时还能够开发深部CH4。 这种置换技术在我国很多含煤盆地具有广阔的应用前景。
- The high mining height hydraulic support is designed for the special geologic condition of Shangwan Coal Mine,such as shallow buried depth,thin bed rock and thick aeolian sand. 大采高液压支架是针对上湾矿煤层浅埋深、薄基岩、厚风积沙等特定地质条件而研制的一种高性能综采液压支架。
- Ground collapse is a common geological hazard in shallow buried karst area. 地面塌陷是浅埋岩溶区常见的一种地质灾害。
- 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
- Shallow buried seabed pipeline can be subjected to subsidiary stress as a result of the load fluctuation. 浅埋海底管线由于外部环境荷载的改变,必然引起一定的附加应力。
- Coal seams intermixed with iron ore. 煤层和铁矿混杂在一起。
- The test indicates that the response of shallow buried is larger than that of deep buried, which explain the importance of overburden to structures. 试验表明浅埋情况的各种反应均大于深埋情况,这说明了约束结构的上覆土层的重要性。
- An introduction is given to construction of a super shallow buried subsurface excavated underpass in Wuhan, and the control of grou nd settlement. 介绍武汉市常青路地下人行通道超浅埋暗挖施工以及控制地表沉降的技术和方法。
- 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。
- On the other hand,It is favorable to the drilling incremental measures and production management because of its shallow buried depth,stable distribution and low crude viscosity. 另一方面,由于油层的埋深浅、分布稳定、原油粘度低的优势,又有利于钻井增产措施的实施和生产管理。
- 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。
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