深冻结井内层可缩性井壁接头设计研究  

Study on the design of retractable well shaft lining joints of the deep freezing well inner layer

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作  者:薛大伟 张瀚文 程龙艺 张伟 李广平[1] Xue Dawei;Zhang Hanwen;Cheng Longyi;Zhang Wei;Li Guangping(Qianyingzi Coal Mining,Anhui Wanbei Coal Power Group,Suzhou 234000,China;College of Civil Building,Anhui University of Technology,Huainan 232001,China)

机构地区:[1]安徽皖北煤电集团钱营孜煤矿,安徽宿州234000 [2]安徽理工大学土木建筑学院,安徽淮南232001

出  处:《山西建筑》2022年第11期38-41,共4页Shanxi Architecture

基  金:国家自然科学基金面上项目(项目编号:51874005)。

摘  要:以钱营孜煤矿新副井累深229 m处可缩性井壁接头为例,采用理论计算和数值模拟相结合的方法开展设计研究。首先给出可缩性井壁接头设计要求及结构形式,再通过理论计算得到可缩性井壁接头内、外立板厚度均为0.03 m,其次采用ANSYS软件进行有限元分析,结果表明该种可缩性井壁接头竖向承载力26.5 MPa,侧向承载力28.2 MPa,接头最大等效应力——竖向载荷曲线及接头最大等效应力——侧向载荷曲线均分为两个阶段:弹性阶段和屈服阶段,并得到可缩性井壁接头的内、外立板屈曲模态图,最小线性屈曲载荷590.80 MPa。Taking the retractable well shaft lining joints at the depth of 229 m of auxiliary shaft of Qianyingzi coal mine as an example,the paper launches the design research by adopting theoretical computation and numerical simulation integrating method.Firstly,through theoretical calculation,it shows the design demand and structural form of the retractable well shaft lining joints,and obtains the internal and external vertical plate thickness of the retractable well shaft lining joints is 0.03 m by theoretical calculation;secondly,it carries out finite element analysis by applying ANSYS software,and finds out that:the vertical bearing capacity of the retractable well shaft lining joint is 26.5 MPa,lateral bearing capacity is 28.2 MPa,the maximum equivalent stress-vertical loading curve and maximum equivalent stress-lateral loading curve all contain two stages:elastic phase and yield phase;finally,it gets the internal and external plate buckling mode diagram of the retractable well shaft lining,and its minimum yielding load is 590.80 MPa.

关 键 词:可缩性井壁接头 数值模拟 竖向附加力 

分 类 号:TD265[矿业工程—矿井建设]

 

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