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随着我国高铁的全面发展,在高铁隧道的施工及使用过程中,由于受各种因素的影响,往往会出现各种病害。尤其是对于地质条件复杂的隧道,开挖施工以及运营状况都直接受到地质条件的影响,许多隧道在运营后出现或多或少的问题。常见的隧道病害有水害、冻害、衬砌开裂、衬砌侵蚀、衬砌背后空洞等,其对整体隧道的安全施工及使用有着直接的影响。本文将通过对合福铁路隧道静态验收中发现的二次衬砌背后空洞问题的整治,阐述隧道空洞整治的施工技术。
With the all-round development of high-speed railways in our country, a variety of diseases are often encountered during the construction and use of high-speed rail tunnels due to various factors. Especially for tunnels with complex geologic conditions, the excavation and construction and operation status are directly affected by the geological conditions. Many tunnels have more or less problems after their operation. Common tunnel diseases are water damage, frost damage, lining cracking, lining erosion, cavities behind the lining, etc., which have a direct impact on the safe construction and use of the whole tunnel. This article will elaborate the construction technology of tunnel cavity remediation through remediation of the cavity behind secondary lining found in the static acceptance of Hefu railway tunnel.