Model experimental of stress field around empty hole under blasting loading - 文章详情页

作者：

Yue, Z.-W. (Yue, Z.-W..) | Yang, R.-S. (Yang, R.-S..) | Guo, D.-M. (Guo, D.-M..) | Niu, X.-C. (Niu, X.-C..) | Ma, X.-M. (Ma, X.-M..) (学者：马雪梅)

收录：

Scopus PKU CSCD

摘要：

In　order　to　research　the　effect　of　empty　hole　in　blasting,　used　the　dynamic　caustics-test　system　of　blasting　loading,　the　PMMA　(Polymethyl　Methacrylate)　model　transmission-type　experiment　of　dynamic　caustics　was　carried　out　to　simulate　the　blasting　process.　Stress　field　around　empty　hole　subjected　to　blasting　loading　was　studied.　The　experimental　results　show　that　bull　hole　takes　on　guide　effect　for　stress　wave　evidently.　The　difference　of　the　principal　stress　near　bull　hole　instantly　reaches　the　maximal　value,　and　subsequently　it　presents　downtrend　of　oscillation　variation.　The　direction　of　the　maximal　tensile　stress　approximately　is　perpendicular　to　that　of　the　line　between　borehole　and　hole.

关键词：

Blasting loading; Dynamic caustics; Empty hole; Stress field; The principal stress difference

作者机构：

[ 1 ] [Yue, Z.-W.]School of Mechanics and Civil Engineering, China University of Mining and Technology (Beijing), Beijing 100083, China
[ 2 ] [Yue, Z.-W.]State Key Lab. of Coal Resources and Mine Safety, China University of Mining and Technology (Beijing), Beijing 100083, China
[ 3 ] [Yang, R.-S.]School of Mechanics and Civil Engineering, China University of Mining and Technology (Beijing), Beijing 100083, China
[ 4 ] [Yang, R.-S.]State Key Lab. of Coal Resources and Mine Safety, China University of Mining and Technology (Beijing), Beijing 100083, China
[ 5 ] [Guo, D.-M.]School of Mechanics and Civil Engineering, China University of Mining and Technology (Beijing), Beijing 100083, China
[ 6 ] [Guo, D.-M.]State Key Lab. of Coal Resources and Mine Safety, China University of Mining and Technology (Beijing), Beijing 100083, China
[ 7 ] [Niu, X.-C.]Department of Building Engineering, Beijing Polytechnic College, Beijing 100042, China
[ 8 ] [Ma, X.-M.]School of Mechanics and Civil Engineering, China University of Mining and Technology (Beijing), Beijing 100083, China
[ 9 ] [Ma, X.-M.]State Key Lab. of Coal Resources and Mine Safety, China University of Mining and Technology (Beijing), Beijing 100083, China

通讯作者信息：

[Yue, Z.-W.]School of Mechanics and Civil Engineering, China University of Mining and Technology (Beijing), Beijing 100083, China

电子邮件地址：

zwyue75@163.com

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