Designand development of highway tunnel maintenance and management system

In order to solve the urgent problem of how to manage and sustain highway tunnels with advanced information technology with the background of the rapid development in the modem traffic, and achieve the cost- effectiveness optimal principle objectives under the premise of guaranteeing a smooth flow of traffic; a highway tunnel maintenance and management system framework and the key modules were proposed. First, the determined highway tunnel condition assessment index system was established according to the result of expert consulting forms. Secondly, the tunnel diseases, the corresponding maintenance measurements, and many-to-many relationship between diseases and maintenance measurements were introduced. Then, three kinds of 0-1 integer programming models were built according to different tunnel operators＇ needs in the optimization decision module. Finally, the further development and implementation of the system was prospected. The research results can provide references to tunnel researchers and managers.

公路隧道“防水板切割二衬”检测技术探讨

在素混凝土区段,二衬浇筑时混凝土通过防水板的接缝缺口穿透至防水板与初支之间,防水板松脱,造成防水板嵌入二衬中并形成切割二衬混凝土的现象,该类缺陷部位易形成掉块、严重威胁行车安全,必须进行处治。为判定隧道结构安全性和为处治设计提供依据,处治前的检测数据应详细、可靠。根据实践经验并结合工程实例,归纳了缺陷特征,分析了缺陷形成原因,提出了应实施的检测项目、检测方法和缺陷处治措施。

大埋深公路隧道富水区瞬变电磁超前探测应用技术研究

在西部丘陵和山区进行的高速公路建设中,大埋深及大跨度的隧道相继多有出现,且不少隧道存在水害威胁。瞬变电磁法作为一种快捷有效的超前水害探测方法,在隧道水害防治中的应用日益广泛。针对大埋深条件下隧道水害的特点,探讨瞬变电磁法隧道超前探测的施工工艺及数据处理解释方法。结合大埋深隧道瞬变超前探测实例,表明瞬变电磁法对隧道前方富水区具有较好的反应,方法有效可靠,能为隧道安全施工提供有效指导。

PPP视角下公路隧道智慧管养模式探讨

近年来,PPP模式在基础设施行业的应用越来越广泛,公路隧道养护行业也不例外.然而,当前公路隧道养护行业存在管养体制不健全、绩效考核力度不足、资源浪费现象严重等问题,已经很难满足PPP视角下投资企业的管理要求.公路隧道智慧管养模式具有决策科学、管理精细、资源节约等诸多优势,能够很好地匹配PPP视角下的公路隧道养护模式.论文主要分析了PPP视角下公路隧道智慧管养需求,探讨了PPP视角下公路隧道智慧管养模式,为相关行业提供参考.

公路隧道施工中超前地质预测之我见

超前地质预测对隧道信息化施工、安全保障以及灾害防治都具有重要作用,是隧道施工不可缺少的关键环节。超前地质预测技术有多种技术形式,不同技术形式的基本原理和效果均存在一定的区别。论文对公路隧道施工中超前地质预测现状做了简单分析,介绍了几种运用广泛的超前地质预测技术,对隧道施工中超前地质预测存在的问题及改善措施做了简要分析,以期加强相关工作。