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Method for treating key unfavorable geological sections around tunnel
The invention discloses a method for treating key unfavorable geological sections around a tunnel, which is used for treating a water storage karst structure and comprises the following steps: detecting the spatial position and distribution condition of unfavorable ground conditions of surrounding rock and a bottom plate around the tunnel, and dividing key unfavorable geological sections according to the detection condition; a curtain grouting reinforcement area is defined in a key unfavorable geological section to conduct curtain grouting to form a stable grouting reinforcement ring, a bottom plate reinforcement area is additionally arranged on the peripheral side of the key unfavorable geological section to block underground water, and the grouting reinforcement ring and the bottom plate reinforcement area form a totally-closed waterproof reinforcement layer to achieve treatment of the key unfavorable geological section on the periphery of a tunnel. And thus, the tunnel is effectively protected.
本发明公开一种隧道周边重点不良地质区段治理方法，用于对储水岩溶构造的治理，包括探测隧道周边围岩及底板不良地况的空间位置及展布情况，并根据探测情况划分出重点不良地质区段；在重点不良地质区段划定帷幕注浆加固区以进行帷幕注浆形成稳定的注浆加固圈，在重点不良地质区段的周侧增设底板加固区以封堵地下水，注浆加固圈与底板加固区形成全封闭隔水加固层以实现对隧道周边重点不良地质区段治理，进而实现对隧道的有效保护。
Method for treating key unfavorable geological sections around tunnel
The invention discloses a method for treating key unfavorable geological sections around a tunnel, which is used for treating a water storage karst structure and comprises the following steps: detecting the spatial position and distribution condition of unfavorable ground conditions of surrounding rock and a bottom plate around the tunnel, and dividing key unfavorable geological sections according to the detection condition; a curtain grouting reinforcement area is defined in a key unfavorable geological section to conduct curtain grouting to form a stable grouting reinforcement ring, a bottom plate reinforcement area is additionally arranged on the peripheral side of the key unfavorable geological section to block underground water, and the grouting reinforcement ring and the bottom plate reinforcement area form a totally-closed waterproof reinforcement layer to achieve treatment of the key unfavorable geological section on the periphery of a tunnel. And thus, the tunnel is effectively protected.
本发明公开一种隧道周边重点不良地质区段治理方法，用于对储水岩溶构造的治理，包括探测隧道周边围岩及底板不良地况的空间位置及展布情况，并根据探测情况划分出重点不良地质区段；在重点不良地质区段划定帷幕注浆加固区以进行帷幕注浆形成稳定的注浆加固圈，在重点不良地质区段的周侧增设底板加固区以封堵地下水，注浆加固圈与底板加固区形成全封闭隔水加固层以实现对隧道周边重点不良地质区段治理，进而实现对隧道的有效保护。
Method for treating key unfavorable geological sections around tunnel
隧道周边重点不良地质区段治理方法
WANG LEI (author) / LIU LEI (author) / GUO WEI (author) / CHEN DEYAN (author) / JIANG GUOSHENG (author) / HU SHANQING (author) / TANG XUEYING (author) / XIONG LIWEN (author) / WU WEN (author) / HE XUECHAO (author)
2023-12-05
Patent
Electronic Resource
Chinese
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