| 京沪高速铁路滕州隧道光面爆破施工技术 |
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| 作者单位： | ;1.中铁十六局集团第三工程有限公司 |
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| 摘 要： | 京沪高速铁路滕州隧道,采用上下台阶光面爆破施工,顺利通过了进出口长大浅埋地段、洞内岩溶复杂地层。重点介绍了滕州隧道Ⅱ、Ⅲ级围岩地段上下台阶实施光面爆破的施工难点,爆破参数的选取与调整,实现了月掘进175m的施工进度,安全、优质、高效地提前完成隧道贯通。
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| 关 键 词： | 高速铁路 大断面隧道 光面爆破 爆破参数 |
SMOOTH BLASTING TECHNOLOGY IN TENGZHOU TUNNEL OF BEIJING-SHANGHAI HIGH SPEED RAILWAY CONSTRUCTION |
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| Abstract: | Tengzhou tunnel,part of Beijing-Shanghai high speed railway was constructed with a method of bench smooth blasting.It successfully passed the long shallow section and the complex stratum with karst caves.This paper mainly focused on the difficulties of the bench smooth blasting construction,the selection and adjustment of parameters for the typeⅡ and typeⅢ rock sections.The tunnel was finally completed ahead with safety and a high quality at the speed of 175m/month. |
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| Keywords: | High-speed railway Large section tunnel Smooth blasting Blasting parameter |
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