不良地質(zhì)和瓦斯綜合影響下的隧道施工方案

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摘 要:不良地質(zhì)和有害氣體直接影響到隧道施工質(zhì)量控制、工藝調(diào)整和施工難度等,為確保隧道施工的有序平穩(wěn)進(jìn)行,必須實(shí)行重點(diǎn)區(qū)域重點(diǎn)管理制度。該文以某隧道為例,基于其面臨的不良地質(zhì)、低瓦斯雙重影響,提出針對(duì)性的隧道施工方案,并提出針對(duì)性的注意事項(xiàng),旨在為類似隧道施工提供參考。
關(guān)鍵詞:隧道;不良地質(zhì);瓦斯;施工方案;施工工藝
中圖分類號(hào):U455.49 文獻(xiàn)標(biāo)志碼:A 文章編號(hào):2095-2945(2024)02-0164-04
Abstract: Bad geology and harmful gases directly affect the quality control, process adjustment and construction difficulty of tunnel construction. In order to ensure the orderly and smooth progress of tunnel construction, it is necessary to implement the key management system in key areas. Taking a tunnel as an example, this paper puts forward a targeted tunnel construction scheme based on the double influence of bad geology and low gas, and puts forward some pertinent matters needing attention.
Keywords: tunnel; bad geology; gas; construction scheme; construction technology
隧道施工受區(qū)域地質(zhì)條件、水文地質(zhì)條件等影響較大,當(dāng)隧道設(shè)計(jì)埋深較大,隧道施工穿越應(yīng)力集中區(qū)、軟質(zhì)巖體和破碎帶,以及其他地質(zhì)異常區(qū)時(shí),容易造成隧道圍巖加大變形,斷面成型較差等現(xiàn)象,導(dǎo)致隧道施工質(zhì)量下降、施工進(jìn)度緩慢、施工困難增加、圍巖維護(hù)成本提升等系列問題[1-2]。(剩余5385字)