2000, Volume 2, Issue 6
Strategic Study of CAE >> 2000, Volume 2, Issue 6
Safety and Rapid Construction Technology in Expand Cutting at Existing Line with Controlled Rock Blasting for Electrified Railway
research & Design Institute of Railway Construction , Beijing. 102600. China
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Abstract
The blasting conditions, topography and geology of rock blasting for expanding cutting at the existing line of electrified railway are more complicated and difficult than that of rock blasting or foundation demolishing blast in cities. The engineering quantity is larger, too. As there has electrify overhead contact line and short space to the existing line, it is much more difficult than blasting for expanding cutting at non-electrified railway. The paper introduces the practicable technology adopted in the light of the features of expanding the cutting for electrified railway existing line in order to attain the purpose of safety and rapid construction.
Keywords
eclectrified overhead contact line ; existing line ; expanding of cutting ; controlled rock blasting ; non-electric initiation ; safe and rapid construction technology
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References
[ 1 ] 铁道部 .铁路增建第二线及改建既有线工程石方控制爆破施工技术规定 [S] , 北京 :1 998
[ 2 ] 建设部 .全国统一城镇控制爆破工程、洞室大爆破工程预算定额 [M ] , 北京 :中国计划出版社 , 1 998
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