山东大学学报 (工学版) ›› 2022, Vol. 52 ›› Issue (4): 183-190.doi: 10.6040/j.issn.1672-3961.0.2021.194
• • 上一篇
邢志豪1,朱斌2,王健2,孙培芹3*,武科1,徐嘉祥1,孙杰1,郑扬1
XING Zhihao1, ZHU Bin2, WANG Jian2, SUN Peiqin3*, WU Ke1, XU Jiaxiang1, SUN Jie1, ZHENG Yang1
摘要: 依托深圳地铁16号线盾构隧道穿越岩溶溶洞工程,采用数值计算分析方法,建立溶洞注浆加固对地铁盾构隧道建设安全影响的力学计算模型,综合考虑岩溶溶洞注浆加固的空间属性,重点研究不同位置溶洞注浆加固前后对地铁盾构隧道稳定性的影响作用。结果表明:随着溶洞与隧道距离的增加,盾构隧道开挖受未注浆加固的溶洞的影响越来越小;相比于对溶洞不进行处理的盾构隧道开挖,溶洞的注浆加固处理可以有效控制地表沉降,在很大程度上降低了隧道围岩的变形量;相比于对溶洞不进行处理的盾构隧道开挖支护,溶洞的注浆加固在一定程度上改善了盾构隧道管片的受力状态,降低了衬砌结构破坏的可能性。
中图分类号:
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