摘要
针对特厚(600~800m)冲击层中煤矿立井井筒支护问题,提出了使用内钢板-高强钢纤维混凝土复合井壁结构,为研究该井壁结构的水平承载特性,利用相似理论推导,采用物理模拟试验的方法,进行了4个模型井壁的破坏性试验,研究了该类井壁结构的水平承载特性和变形特征。研究表明,内钢板-高强钢纤维混凝土复合井壁属约束混凝土结构,是特厚冲积层中井筒支护理想的井壁结构形式之一。
Aiming at the support problems of the shaft lining in extra thick( from 600 m to 800 m in depth) alluvium ranging,the paper proposes a composite shaft wall structure using high- strength steel fiber reinforced concrete with inner steel plate. To study its horizontal bearing and deformation characteristics,4 shaft wall model destructive tests are performed with the physical simulation based on the similarity theory. The result shows that, it belongs to constraint concrete structure which can give full play to the capability of steel plate and steel fiber concrete,and shows favorable bearing capacity and tensility.
出处
《煤炭工程》
北大核心
2016年第3期103-105,109,共4页
Coal Engineering
基金
国家高技术研究发展计划(863计划)资助项目(2012AA06A401)
国家自然科学基金重点资助项目(51174194)
河南省教育厅科学技术重点资助项目(13B440124)
黄河水院科技基金资助项目(2014KXJS018)
关键词
特厚冲积层
内钢板
高强钢纤维混凝土
复合井壁
extra-deep alluvium
inner steel plate
high-strength steel fiber reinforced concrete
composite shaft wall