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| IMPROVED CONSTRUCTION OF SMOOTH BLASTING AND SUPPORT OF ANCHORING AND SHOTCRETING ON TUNNEL ENGINEERING |
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| DOI： |
| KeyWord:tunnel excavation;smooth blasting;support of anchoring and shotcreting;improved measure; |
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| 1.Department of Geotechnical Engineering;Tongji University;Shanghai 200092;China;2.Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education;China |
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| Abstract: |
| The traditional smooth blasting for tunnels uses pure clay to stem blast-holes on NATM construction.Although it can ensure dynamite reacting fully,the efficient energy availability of explosive is not high.Construction bolting and shotcreting traditional process is also discussed because the technique has some disadvantages.Based Tieshanping tunnel example,the construction of smooth blasting bolting and shotcreting support is improved during the tunneling construction.A average speed of 125.8 meters per mon... |
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