Abstract
The Ⅵ level surrounding rock section of a project water intake tunnel is located in the coastal zone，with thick overlying sand layers，broken surrounding rock，and other characteristics.To address these issues，laboratory tests were conducted to explore the effect of water glass volume dosing on the final setting time and strength of cement-sodium silicate （CS） liquid slurry，and field tests were carried out for a comprehensive analysis of grouting methods.The constraint-dispersion mode was finally determined to divide the grouting area into several small grouting units.Advance plastic pipe grouting reinforcement was performed according to the grouting sequence of the outermost circle hole interval first，followed by the inner hole interval.The effect of core sampling and concealed excavation shows that the rock fissures are effectively filled and reinforced by surface pre-grouting，which reduces the occurrence of water gushing and collapse during excavation，ensures normal tunnel excavation，and achieves good economic and social benefits.
Publication Date
12-17-2024
DOI
10.14048/j.issn.1671-2579.2024.06.027
First Page
233
Last Page
239
Submission Date
February 2025
Recommended Citation
Ze, XIANG; Shiping, DENG; Zhang, SHENG; Ye, ZHOU; Wei, WANG; and Yabing, PEI
(2024)
"Surface Grouting Reinforcement Technology for Shallowly Buried Tunnel in Coastal Zone,"
Journal of China & Foreign Highway: Vol. 44:
Iss.
6, Article 27.
DOI: 10.14048/j.issn.1671-2579.2024.06.027
Available at:
https://zwgl1980.csust.edu.cn/journal/vol44/iss6/27
Reference
[1]《中国公路学报 》编辑部 .中国隧道工程学术研究综述 ·2015 [J].中国公路学报 ,2015 ,28(5):1-65.Editorial Department of China Journal of Highway and Transport .Review on China ’s tunnel engineering research :2015 [J].China Journal of Highway and Transport ,2015 ,28(5):1-65.
[2]胥明 ,张细宝 ,刘卫 ,等.南昌地铁盾构下穿建筑物注浆加固技术研究 [J].中外公路 ,2016 ,36(1):11-14.XU Ming ,ZHANG Xibao ,LIU Wei ,et al.Study on grouting reinforcement technology of Nanchang subway shield passing thro ugh buildings [J].Journal of China & Foreign Highway ,2016 ,36(1):11-14.
[3]CAI C ,LIU C J ,SHEN G W ,et al .Advance grouting technology for a large surge tunnel [J].IOP Conference Series :Earth and Environmental Science ,2020 ,570(5):052060 .
[4]尹子豪 .土层特性及注浆对盾构上穿引起既有隧道变形影响分析 [J].中外公路 ，2022 ,42（2） ：197-203.YIN Zihao .Analysis of influence of soil layer characteristics and grouting on deformation of existing tunnel caused by shield tunneling [J].Journal of China & Foreign Highway ,2022，42(2):197-203.
[5]魏义山 ,江红 ,陈剑 ,等.地铁斜井通道袖阀管注浆预加固技术应用研究 [J].中外公路 ,2017 ,37(2):213-217.WEI Yishan ,JIANG Hong ,CHEN Jian ,et al .Study on application of grouting pre-reinforcement technology for sleeve valve tube of subway inclined shaft passage [J].Journal of China & Foreign Highway ,2017 ,37(2):213-217.
[6]张明 .隧道强透水砂砾地层袖阀管地表注浆加固工艺研究[J].隧道建设 ,2014 ,34(10):975-980.ZHANG Ming .Study on consolidation of tunnel in highly-permeable sandy-gravel strata by means of ground surface soletanche grouting [J].Tunnel Construction ,2014 ,34(10):975-980.
[7]于博 .不良地质段地表袖阀管注浆加固技术的应用 [J].公路 ,2017 ,62(10):66-69.YU Bo .Application of grouting reinforcement technology for surface sleeve valve tube in bad geological section [J].Highway ,2017 ,62(10):66-69.
[8]李享松 ,覃娟 ,罗概 ,等.富水砂卵石地层注浆参数优化研究[J].铁道科学与工程学报 ,2016 ,13(3):469-475.LI Xiangsong ,QIN Juan ,LUO Gai ,et al .Study on optimization of grouting parameters in water-soaked sand and cobble stratum [J].Journal of Railway Science and Engineering ,2016 ,13(3):469-475.
[9]GAO P ,ZHANG Q S ,XUE X G ,et al .Research and application on reinforcement technology of steel floral tube retaining with multiple segmental control grouting [J].International Core Journal of Engineering ,2020 ,6(2).
[10]黄跃廷，王崇华，汪慧，等.隧道全断面超前注浆对地层扰动特性研究 [J].中外公路 ，2023 ,43（6） ：273-277.HUANG Yueting ，WANG Chonghua ，WANG Hui ，et al .Study on disturbance characteristics of ground in full-section tunnel under advance grouting [J].Journal of China & Foreign Hig hway ,2023，43(6):273-277.
[11]王国义 .成都砂卵石地层注浆加固技术应用 [J].隧道建设,2012 ,32(5):696-699,718.WANG Guoyi .Application of grouting consolidation technology in sandy cobble strata in Chengdu [J].Tunnel Construction ,2012 ,32(5):696-699,718.
[12]来弘鹏 ,谢永利 ,杨晓华 .地表预注浆加固公路隧道浅埋偏压破碎围岩效果分析 [J].岩石力学与工程学报 ,2008 ,27(11):2309 -2315 .LAI Hongpeng ,XIE Yongli ,YANG Xiaohua .Treatment effect analysis of shallow-buried crushed surrounding rocks under unsymmetrical pressure reinforced with surface pregrouting technology in highway tunnel [J].Chinese Journal of Rock Mechanics and Engineering ,2008 ,27(11):2309 -2315 .
[13]叶欣欣 ,苗苗 ,钟宇健 ,等.浅埋偏压富水隧道地表注浆加固效果分析 [J].现代隧道技术 ,2021 ,58(4):229-236.YE Xinxin ,MIAO Miao ,ZHONG Yujian ,et al .Analysis on reinforcement effect of surface grouting in shallow-buried tunnels with asymmetrical loading and abundant underground water [J].Modern Tunnelling Technology ,2021 ,58(4):229-236.
[14]王乾 ,曲立清 ,郭洪雨 ,等.青岛胶州湾海底隧道围岩注浆加固技术 [J].岩石力学与工程学报 ,2011 ,30(4):790-802.WANG Qian ,QU Liqing ,GUO Hongyu ,et al .Grouting reinforcement technique of Qingdao Jiaozhou Bay subsea tunnel [J].Chinese Journal of Rock Mechanics and Engineering ,2011 ,30(4):790-802.
[14]徐继光 ,翁贤杰 ,张龙生 .浅埋隧道超前注浆导致地表隆起规律现场试验研究 [J].中外公路 ,2021 ,41(2):241-246.XU Jiguang ,WENG Xianjie ,ZHANG Longsheng .Field test on surface upheaval regularity caused by advanced grouting in shallow tunnel [J].Journal of China & Foreign Highway ,2021 ,41(2):241-246.
[16]李杰 .公路下伏急倾斜煤层采空区全充填压力注浆加固技术研究 [J].中外公路 ,2022 ,42(3):26-29.LI Jie .Analysis on reinforcement technology of full filling pressure grouting with goaf of steep coal seam under highway [J].Journal of China & Foreign Highway ,2022 ,42(3):26-29.
[17]丁祎格 ,裴亚兵 ,宋益明 ,等.某工程浅埋型隧洞地表注浆效果研究 [J].施工技术 (中英文 ),2023 ,52(7):63-66,71.DING Yige ,PEI Yabing ,SONG Yiming ,et al .Research on surface grouting effect of shallow tunnel in a project [J].Construction Technology ,2023 ,52(7):63-66,71.