Stability Analysis and Mitigation Measures of Karst Rock Cavities Surrounding Zhoupangou Tunnel

Soil Engineering and Foundation ›› 2022, Vol. 36 ›› Issue (1): 12-15.

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Stability Analysis and Mitigation Measures of Karst Rock Cavities Surrounding Zhoupangou Tunnel

LIU Gaoxing1, SHI Chunyu1, XU Dongyang1, HUO Xicai1, DU Hengkai1， YANG Fanjie2

(1.CCCC Tunnel Engineering Co. Led., Beijing 100000；
2.State Key Laboratory of Geomechanics and Geotechnical Engineering,
Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071)

Received:2021-08-23 Revised:2021-08-26 Online:2022-02-28 Published:2022-03-09

Abstract

Abstract: Based on the special geological conditions of the karst rock cavity section in the Zhoupangou tunnel construction at Station LK28+284 on the left side of the tunnel exit, this paper presents a case history of stability evaluation. The through geological radar detection and engineering geological analysis, the surrounding karst rock cavity stability of the typical tunnel section was evaluated and stability mitigation measures of karst rock cavities near the crest and sides of the tunnel were proposed. These mitigation measures were also verified as appropriate during the construction.

Key words: tunnels, karst rock, stability analysis, supporting measures

CLC Number:

U456

LIU Gaoxing, SHI Chunyu, XU Dongyang, HUO Xicai, DU Hengkai, YANG Fanjie. Stability Analysis and Mitigation Measures of Karst Rock Cavities Surrounding Zhoupangou Tunnel[J]. Soil Engineering and Foundation, 2022, 36(1): 12-15.

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Stability Analysis and Mitigation Measures of Karst Rock Cavities Surrounding Zhoupangou Tunnel

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