钻爆法海底隧道穿越断层破碎带围岩稳定性综合分析与控制方法研究

doi:10.3724/1000-6915.jrme.2024.0622

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摘要海底隧道穿越断层破碎带等不良地质时的围岩稳定性控制至关重要。提出一种“隧址区大范围稳定性计算先行、高风险区精细化灾变分析紧跟”的围岩稳定性数值分析方法。依托汕头湾海底隧道工程F9断层及风化槽段，分别采用FLAC3D和DEM方法对隧道爆破开挖过程进行数值模拟，评估隧道高风险施工段落，对比研究注浆不同注浆加固圈厚度对隧道围岩变形的控制效果，提出海面与洞内联合注浆的围岩稳定性控制方案。通过数值模拟与现场实测结果验证了方案的可靠性，保障了隧道施工安全。相关结论对类似条件海底隧道建设过程中围岩稳定性控制与注浆方案优化具有一定参考价值。

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	白松松1
	周宗青1
	2
	高成路1
	孟庆余3
	刘建勋4
	高天5
	王旭3
	柯成林4

关键词 ：隧道工程, 海底隧道, 数值模拟, 流固耦合, 围岩变形, 稳定性控制

Abstract：The stability control of surrounding rock is crucial when the submarine tunnel passes through poor geological conditions like fault fracture zone. In this paper，a numerical analysis method of surrounding rock stability is proposed，which requires the stability of the surrounding rock in the whole area of the tunnel to be calculated first，and then the refined hazard process of high-risk area is analyzed. Numerical simulation with FLAC3D and DEM methods are carried out respectively based on the F9 fault and weathering trough section of the Shantou Bay Submarine Tunnel Project. The high-risk sections of the tunnel were evaluated. The control effect of different grouting reinforcement area thicknesses on the deformation of the tunnel surrounding rock was compared by simulation. Based on the comparison results，a scheme of joint grouting on the sea surface and inside the tunnel was proposed. The reliability of the proposed scheme was verified through numerical simulations and measurements of Shantou Bay Tunnel. The implementation of the grouting scheme ensured the safety of tunnel construction. The relevant conclusions offer valuable insights for controlling the stability of surrounding rock and optimizing grouting schemes during the construction of submarine tunnels under similar conditions.

Key words： tunnel engineering submarine tunnel numerical simulation fluid-solid coupling rock deformation stability control

引用本文:

白松松1，周宗青1，2，高成路1，孟庆余3，刘建勋4，高天5，王旭3，柯成林4. 钻爆法海底隧道穿越断层破碎带围岩稳定性综合分析与控制方法研究[J]. 岩石力学与工程学报, 2025, 44(3): 691-704.
BAI Songsong1，ZHOU Zongqing1，2，GAO Chenglu1，MENG Qingyu3，LIU Jianxun4，GAO Tian5，WANG Xu3，KE Chenglin4. Research on comprehensive analysis and control method of surrounding rock stability in submarine tunnel crossing fault fracture zone by drilling and blasting method. , 2025, 44(3): 691-704.

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https://rockmech.whrsm.ac.cn/CN/10.3724/1000-6915.jrme.2024.0622 或 https://rockmech.whrsm.ac.cn/CN/Y2025/V44/I3/691

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