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在矿井建设中,矿井井筒主排水管路所用钢材消耗量大,投资费用高。除井简较浅采用单一壁厚外,一般采用壁厚分级的方案,即首先确定所分段数,再按经验选择各段长度,然后分别计算出各段壁厚。为求得一个准确的值,往往需要经过几次试算才行。本文介绍一个可快速确定出壁厚分级最优方案的方法,使整个管路在满足强度要求的条件下,其重量最轻、投资费用最低,不仅能改善井底主支撑梁、中间支撑梁和并壁的支撑条件,而且还可
In mine construction, the mine shaft main drain pipe used steel consumption, high investment costs. In addition to simple shallow shaft with a single wall thickness, the general classification of the wall thickness of the program, that is, to determine the number of segments, and then choose the length of each segment, and then calculate the segment wall thickness. In order to obtain an accurate value, often need to go through several trial calculations. This paper introduces a method that can quickly determine the optimum design of wall thickness classification, so that the entire pipeline meets the strength requirements of the lightest weight, lowest investment costs, not only can improve the bottom main beam, the middle beam and And wall support conditions, but also