文献类型：期刊文献

英文题名：Arc-shaped bulkhead applied in short-wall room-and-pillar mining

作者：Zhang, Kaizhi Pan, Ruikai Jiang, Jinquan Ji, Songtao Wang, Shuli

第一作者：Zhang, Kaizhi;张开智

通信作者：Pan, Ruikai

机构：[1] Guizhou institute of technology, Guiyang, Guizhou, China; [2] State Key Laboratory of Mining Disaster Prevention and Control, Co-founded by Shandong Province, Ministry of Science and Technology, Qingdao, Shandong, China; [3] College of Mining and Safety Engineering, Shandong University of Science and Technology, Qingdao, Shandong, China; [4] State Key Laboratory of Mining Disaster Prevention and Control, Co-founded by Shandong Province, Ministry of Science and Technology, Qingdao, Shandong, China; [5] College of Mining and Safety Engineering, Shandong University of Science and Technology, Qingdao, Shandong, China

第一机构：贵州理工学院

年份：2014

卷号：19

期号：Z6

起止页码：17617-17625

外文期刊名：Electronic Journal of Geotechnical Engineering

收录：EI(收录号：20160601896808);Scopus(收录号：2-s2.0-84956688937)

语种：英文

外文关键词：Atmospheric pressure - Bulkheads (retaining walls) - Coal deposits - Hurricanes - Mine roof control - Roofs

摘要：Study develops with background of short-wall room-and-pillar mining with thick coal seam and thick bedrock in Shendong mining district. In order to prevent the hurricane caused by large-area roof caving in gob instantaneously, an anti-shock bulkhead, which is composed of double layer arc-shaped walls and filling materials between walls, was put forward. The internal force expressions on anti-shock arc-shaped bulkhead which born uniform load were derived by means of elasticity centre method of structure mechanics and field measurement. Meanwhile, the structure of arc-shaped bulkhead was optimized analyzed. The results shows that shock pressure forcing on anti-shock bulkhead are 20~30 atmospheric pressure, the suitable rise of arch is 1.0m and the thickness of arc-shaped bulkhead is only 39.5 percent of that of straight bulkhead based on bending tensile stress. And the material and time of constructing an arc-shaped bulkhead is 60 percent less than the straight bulkhead's in the case of suffering same shock pressure, which realize the rapid sealing and good safety.