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- Keywords special thick alluvium;drilling shaft bottom;snick;optimally central angle;model test; 特厚表土层;钻井井壁底;削球式;最佳圆心角;模型试验;
- Keywords special thick alluvium;drilling shaft bottom;semiellipse rotation type;hemisphere and snick type;optimizing scheme; 超深表土;钻井井壁底;半椭圆回转式井壁底;削球式井壁底;方案优化;
- Keywords special thick alluvium;complex stress condition;mode test;shaft lining structure;numerical calculation;the corrected coefficient of concrete strength; 关键词特厚表土层;复杂应力状态;模型试验;井壁结构;数值计算;混凝土强度修正系数;
- special thick alluvium 特厚表土层
- As a shaft sinking method adapted to go through unstable water bearing strata in thick alluvium, special shaft sinking methods have experienced major development in China during the past decades. 特殊凿井技术作为深厚表土不稳定含水地层的井筒施工方法,数十年来在我国得到了很大的发展,目前我国的冻结法凿井应用之广在世界上已名列前茅;
- Research on freezing pressure in deep thick alluvium is in great need with the increase in depth of frozen shaft. 随冻结法凿井深度的增加,我国对深厚冲积层冻结井冻结压力分布的研究需求已经十分迫切。
- The mine shaft sinking with a mine shaft drilling is a reliable mine shaft construction method to pass through a deep and thick alluvium. 钻井法凿井是通过深厚冲积层最可靠的竖井施工方法。
- The vertical shaft lining-cracking disasters have occurred to over 60 shafts in the deep and thick alluvium in eastern parts of China. 在华东地区深厚表土层中已有60余个竖井井壁发生破裂灾害。
- The fuzzy integrative evaluation theory is used to set up the fuzzy integrative evaluation method of shaft lining under complicated loads in thick alluvium. 在此基础上,利用模糊评价理论,建立了深表土复杂条件下的井壁可靠性模糊评价方法。
- Based on calculated finite element deformation results of Chahanwusu, the key technology of concrete face rockfill dam built on thick alluvium deposits is summarized. 摘要以察汗乌苏面板堆石坝有限元法应力变形计算结果为基础，总结了在深覆盖层地基上建造的面板堆石坝的关键技术。
- The stress-deformation behavior of diaphragm walls of concrete face rockfill dam built on thick alluvium deposit was analyzed using the numerical analysis method. 摘要采用数值分析方法对深覆盖层上混凝土面板堆石坝的防渗墙应力变形性状进行了研究。
- Studies on subsurface-flow wetland treatment system for special thick oil production wastewater from Liaohe oilfield. 辽河油田超稠油废水潜流湿地处理系统研究。
- The utilization of the processes will enable to manufacture the thick and special thick panels. 蒸汽喷射热压法的应用,将使厚、特厚板及低密度板的制造成为可能。
- The angle dimension parameters of surface movement, tokens of space shape, are analyzed in this paper based on the observation data of strip mining under thick alluvium and thin bedrock. 摘要基于厚冲积层及薄基岩条件下条带开采观测数据，分析了表征空间形态的地表移动角量参数；
- The new freezing technology and the new freezing design method used in construction of the auxiliary shaft of Longgu Colliery that its freezing deepness is the first exceed 600 m in thick alluvium. 就板集矿井实际条件论述了深厚表土井筒施工方法的选择,依据最新的相关规范提出了钻井法施工的钢筋混凝土井壁及钢板混凝土复合井壁的设计计算方法。
- The angle dimension parameters of surface movement,tokens of space shape,are analyzed in this paper based on the observation data of strip mining under thick alluvium and thin bedrock. 基于厚冲积层及薄基岩条件下条带开采观测数据,分析了表征空间形态的地表移动角量参数;
- The factors that affect the reliability of shaft lining in thick alluvium are analyzed; and the main factors used for evaluating the reliability are quantitated; the index system is set up too. 分析了影响深表土立井井壁可靠性的因素,并对主要因素进行合理量化,建立了指标体系。
- Usually for mining maximal coal resources,repeated mining is used especially in specially thick coal seam. 为了最大限度的开采煤炭资源,通常进行复采,尤其是特厚煤层。
- A kind of specialized thick oil demulsifier was synthesized from polyether by self reaction and inter reaction of polyethers. 以聚醚为原料，通过自交联和互交联合成出一种专用稠油破乳剂。
- Combining with the actual situation in Qianqiu coal mine, the technology for comprehensive gas treatment in spontaneously inflammable and specially thick coal seam is introduced. 结合千秋煤矿实际情况,介绍了易自燃特厚煤层瓦斯综合治理技术。
