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文中指出用建集力学方法进行拱的计算是精确的;给出了经过修正的公式;认为三心拱并非最合理的形式。整体连续混凝土拱形支架是支护开拓平巷最有利的结构。目前,由于开采深度和支架上荷载的增加,使正确选择整体连续混凝土拱形支架的厚度和形式具有重要的技术和经济意义。根据建筑规范与规程的规定,在地下700米深处掘凿巷道时,整体混凝土支架应采用三
The paper points out that the calculation of arch by the method of building mechanics is accurate; the revised formula is given; and the three-heart arch is not the most reasonable form. The overall continuous concrete arched support is the most advantageous structure to open up the lane. At present, it is of important technical and economic significance to properly select the thickness and form of the integral continuous concrete arch support due to the increased mining depth and the load on the support. According to the rules and regulations of the building code, excavation tunnel in the depth of 700 meters underground, the overall concrete brackets should be used three