摘要
研究目的:摘要:研究目的:随着我国基础建设的不断投入,铁路及公路建设蓬勃发展,隧道数量也越来越多,但由于地质、施工、建筑材料等方面的原因,导致一些隧道衬砌开裂,威胁到运营安全,需要采用合适的方法进行处治,确保工程的经济性及结构的安全性。研究结论:本文从衬砌混凝土裂缝产生的机理来分析裂缝的受力状况及产生原因,并量化病害等级,通过研究得出如下结论:(1)应根据病害等级采取裂缝嵌补、衬砌锚固、套衬等进行处治;(2)衬砌混凝土裂缝可以通过强化地质勘察、加强施工工艺控制来进行事前防范;(3)出现裂缝后,应进行原因分析和病害等级判定,再来选择合适的整治措施,保证结构及运营安全;(4)研究成果可用于既有铁路、公路隧道衬砌裂损病害整治,也可用于新建铁路、公路隧道衬砌裂损缺陷的预防、控制与处治。
Research purposes： The continuous input in infrastructure of China and the flourish of railway and highway development give rise to an increasing number of tunnels. However, due to the geology, construction, building materials and some other factors, cracks occur in tunnel lining, threatening the operation safety. Then it is necessary to take measures to treat the situation in order to ensure the safety and economy of engineering structure. Research conclusions：On the basis of the generation mechanism of lining concrete cracks, the following article gives an analysis of the crack stress condition and quantifies the disease rating, aceording to which different measures are adopted. These measures include crack repairing, lining anchor, sleeve lining and so on. The research findings show that the prevention of concrete cracks can be realized by the enhancement of geological survey and construction process, besides, the structure and operation safety can be guaranteed by appropriate treatments which are decided by the analysis of cracks condition and disease rating. The findings on one hand can be used to cure the tunnel lining cracks of existing railways and highways and on the other hand to prevent, control and treat the tunnel Dining cracks of new railways and highways.
出处
《铁道工程学报》
EI
北大核心
2014年第2期88-95,共8页
Journal of Railway Engineering Society
关键词
隧道
裂缝
辨认
措施
tunnel
cracks
identification
measures
