摘要
渤海海峡隧道是国家铁路网和高速公路的重要组成部分,修建跨海隧道意义重大。本文以渤海海峡全隧道方案为基础,研究渤海海峡海底隧道竖井的设置及施工技术。通过对隧道掘进机(TBM)寿命的分析选取北隍城岛和北长山岛两处作为竖井布置点,并通过施工通风及运营通风的计算和岛屿场地的研究论证竖井设置方案的可行性。通过对矿山竖井、铁路隧道及公路隧道竖井的施工技术分析,得出渤海海峡海底隧道竖井应采用凿岩爆破一次成型法进行施工的结论,同时明确了竖井表土施工应以堵水为主,基岩段施工采取以合理的裂隙注浆技术为主的技术方案。
Bohai Strait tunnel is an important part of the national railway network and the highway;the construction of the crossing is significant. Based on the whole tunnel scheme of Bohai Strait,the location choice and construction technology of shafts in Bohai Strait subsea tunnel were researched in this paper. Through the analysis of the tunnel boring machine（TBM）life,Beihuangcheng Island and Beichangshan Island were selected as the locations for two shafts;and through the calculations of construction and operation ventilation and the re-search of the island sites,the feasibility of the shaft location choice scheme was demonstrated. According to the construction technology analyses of shafts in mine,railway tunnel and road tunnel,a molding method of drilling and blasting was used to construct the Bohai Strait tunnel shaft;the main measure of the construction of shaft top-soil should be plugging;the main technology program of the construction of base rock section should take the reasonable crack grouting technology.
出处
《中国工程科学》
北大核心
2013年第12期85-89,100,共6页
Strategic Study of CAE
关键词
海底隧道
竖井
通风
施工技术
subsea tunnel
shaft
ventilation
construction technology
