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| 摘要: |
| Road tunnel excavation often traverses coal strata,which is at risk of firedamp explosion that usually results in disaster.Airtight concrete grouting is popularly used in this kind of tunnel project,Based on the essential theory of mechanics of fluids in |
| 关键词: 公路隧道 气密混凝土灌浆 气体喷出 预防措施 施工方法 |
| DOI： |
| 分类号:U459.2 U455. |
| 基金项目:Funded by the Doctoral Foundation of the Ministry of Education of China (2000061115) |
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| Applications of airtight concrete grouting to road tunnels |
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LIU Xinrong1,2,ZHANG Dongming3,KANG Huiming4,LI Dongwei1 1 College of Civil Engineering,Chongqing University,Chongqing 400045,P. R. China 2Chongqing Communication Research & Design Institute,Chongqing 400067,P. R. China 3Key Lab. For China Southwest Resou
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| Abstract: |
| Road tunnel excavation often traverses coal strata, which is at risk of firedamp explosion that usually results in disaster. Airtight concrete grouting is popularly used in this kind of tunnel project. Based on the essential theory of mechanics of fluids in porous media, the principle of improving concrete airtight property and its influential factors are investigated. The proportioning tests and monitoring method for airtight concrete are introduced, which is illustrated by a case study applied to the project of the Huayinshan Tunnel. It is proved by engineering practices that the achievement of this research work is beneficial to tunneling project across coal strata. |
| Key words: road tunnel,airtight concrete,gas outburst preventing |
