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郑州铁路局管内山区线路多,隧道密集,全局共有隧道1145座(不包括近年新建的),累计537376延长米。隧道病害情况很严重,整治隧道病害施工速度缓慢,大修周期过长,原有的病害得不到及时整治,不断发展、扩大,酿成更大的病害。有的隧道拱顶掉块、拱腰断裂,拱部衬砌支离破碎,危如垒卵;有的隧道边墙折断、外移,侵人净空,严重危及行车安全和人身安全。另外,整治病害施工必须封锁线路,势必干扰正常的运营秩序。 为了及时整治隧道病害,缓解运营与施工的矛
There are many lines and tunnels in the tube of Zhengzhou Railway Administration, with a total of 1145 tunnels (excluding those newly built in recent years) with a total of 537,376 meters of extension. Tunnel disease is very serious, construction of tunnel disease slow construction, overhaul cycle is too long, the original disease can not be timely remediation, continuous development, expansion, leading to greater disease. Some tunnel vaults fall blocks, arch broken waist arch lined fragmented, dangerous as barrier eggs; some of the tunnel wall broken, relocation, invasion of headroom, seriously endanger driving safety and personal safety. In addition, remediation disease construction must block the line, it is bound to interfere with the normal operation of the order. In order to timely rectify the tunnel disease, ease the spear of operation and construction