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雪峰山特长铁路隧道白沙斜井主要难点与对策 被引量:10

Difficulties in Construction of Baisha Inclined Shaft of Xuefengshan Extra-long Railway Tunnel and their Countermeasures
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摘要 为解决长大斜井一井多面施工中的主要难题,以向莆铁路雪峰山隧道白沙斜井为背景,分析该隧道通信联络、施工通风、反坡排水、交通运输、不良地质风险控制等方面的施工对策。主要得出以下结论:1)采用以移动电话设施进洞为主的多种通讯联络方式,提高了管理效率,缩短了应急响应时间;2)使用新型螺旋风管,采用单机单管压入式通风技术,简单、便捷、可靠、高效,通风效果较好;3)在反坡段工作面设置移动水仓及泵站,并充分发挥各级泵站抽排能力,有效规避了工作面被淹可能;4)通过防溜土墩、声光报警装置、限速行驶、人车分道行驶等措施,确保了洞内繁忙运输交通得以有条不紊地进行;5)对不良地质采用风险再评估、风险动态管理、风险信息公示等关键措施,有效控制了不良地质可能诱发的施工风险。 Baisha inclined shaft of Xuefengshan tunnel on Xiangtang-Putian railway is designed to provide service for 4 tunneling faces at the same time.Countermeasures for such difficulties as communication,construction ventilation,anti-slope drainage,transportation and control of risk in bad geological conditions are analyzed,with the construction of Baisha inclined shaft as an example.Conclusions drawn are as follows: 1) The management efficiency is improved and the emergency response is quickened by using mobile communication technology;2) The new type of ventilation ducts and force-in ventilation mode with dedicated ventilation fan and duct system for each tunneling face adopted are simple,convenient,reliable and efficient,which results in good ventilation effect;3) The possibility of flooding is effectively avoided by setting up mobile water sumps and mobile pump stations at the working faces in anti-slope sections;4) Successful transportation is guaranteed in the inclined shaft by using technologies of antislipping mounds,acoustic and light warning devices,speed limiting and separation between pedestrians and vehicles;5) The construction risks under bad geological conditions are well controlled by means of risk reassessment,risk dynamic management and risk information revealing.
作者 王进志
出处 《隧道建设》 2011年第2期246-251,共6页 Tunnel Construction
关键词 雪峰山铁路隧道 长大斜井 通信联络 斜井通风 反坡排水 Xuefengshan railway tunnel long inclined shaft communication ventilation anti-slope drainge
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