Article(id=1149780470466048863, tenantId=1146029695717560320, journalId=1146123166801305609, issueId=1149780466032669506, articleNumber=null, orderNo=null, doi=10.12404/j.issn.1671-1815.2309398, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1701187200000, receivedDateStr=2023-11-29, revisedDate=1735488000000, revisedDateStr=2024-12-30, acceptedDate=null, acceptedDateStr=null, onlineDate=1752058626047, onlineDateStr=2025-07-09, pubDate=1744041600000, pubDateStr=2025-04-08, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1752058626047, onlineIssueDateStr=2025-07-09, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1752058626047, creator=13701087609, updateTime=1752058626047, updator=13701087609, issue=Issue{id=1149780466032669506, tenantId=1146029695717560320, journalId=1146123166801305609, year='2025', volume='25', issue='10', pageStart='3969', pageEnd='4395', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=0, createTime=1752058624990, creator=13701087609, updateTime=1768456644259, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1218558743898411553, tenantId=1146029695717560320, journalId=1146123166801305609, issueId=1149780466032669506, language=EN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1218558743898411554, tenantId=1146029695717560320, journalId=1146123166801305609, issueId=1149780466032669506, language=CN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=4334, endPage=4346, ext={EN=ArticleExt(id=1149780470692541281, articleId=1149780470466048863, tenantId=1146029695717560320, journalId=1146123166801305609, language=EN, title=Optimization of Grouting Forms and Grouting Circle Parameters for Railway Tunnels Passing through Rich Water Fault Fractured Zone, columnId=1156262728772735295, journalTitle=Science Technology and Engineering, columnName=Papers·Traffics and Transportations, runingTitle=null, highlight=null, articleAbstract=
In order to solve the problem that the tunnel crosses the water-rich fault fracture zone, the construction risk is large, and the problems of surrounding rock instability and water inrush are very likely to occur. Based on the engineering background of the Xiaocaoba tunnel of the Chongqing-Kunming high-speed railway crossing the water-rich fault fracture zone, the fluid-structure interaction numerical model was established by using FLAC3D to study whether to consider the influence of groundwater action, different grouting forms, grouting ring thickness and the force of the supporting structure under the influence of groundwater. The results show that the stability of the surrounding rock is poor under the consideration of groundwater, and after the tunnel excavation, the groundwater is distributed in a “funnel-shaped” manner around the tunnel after the seepage reaches a steady state, and the stability of the surrounding rock is enhanced after the advanced grouting reinforcement, and the grouting reinforcement form of the whole perimeter is better than that of the grouting around the arch wall. On the basis of selecting the grouting form, the parameters of the grouting ring were continuously optimized, and it was concluded that with the increase of the ratio of grouting ring thickness and permeability coefficient, it can effectively reduce the displacement of surrounding rock, limit the development of plastic zone, and reduce the pore water pressure of the primary branch, and the increase of the thickness of the grouting ring can significantly change the distribution range of the pore water pressure of the primary branch. After the construction of the appropriate grouting scheme on site, the feasibility of the grouting scheme and the rationality of the selection of grouting parameters were verified by comparing the monitoring values around the tunnel with the simulated values, and the stability of the surrounding rock was effectively controlled. The research results can provide reference value for the design and construction of similar tunnel projects in the future.
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为解决隧道穿越富水断层破碎带施工时风险较大,极易发生围岩失稳、突涌水等问题。依托渝昆高铁小草坝隧道穿越富水断层破碎带为工程背景,通过采用FLAC3D建立流固耦合数值模型,研究了是否考虑地下水作用、不同注浆形式、注浆圈厚度和渗透系数下隧道围岩变形和支护结构受力的影响规律。结果表明:在考虑地下水作用下围岩稳定性较差,隧道开挖后,渗流达到稳态后地下水在隧道周边呈“漏斗状”分布,在超前注浆加固后,围岩稳定性增强,全周边注浆加固形式优于拱墙周边注浆。在选择注浆形式的基础上,对注浆圈参数继续优化,得出随着注浆圈厚度和渗透系数比的增大,可有效起到减小围岩位移、限制塑性区发展、降低初支孔隙水压力的作用,并且注浆圈厚度的增加可明显改变初支孔隙水压力的分布范围。综合优化比选,建议选择8 m的注浆圈厚度和注浆渗透系数比ng=100较为合适,经现场采用合适的注浆方案施工后,通过隧道周边监测值与模拟值对比,验证注浆方案的可行性和注浆参数选取的合理性,围岩稳定性得到有效控制。研究结果可为今后类似隧道工程设计、施工提供参考价值。
, correspAuthors=马述起, authorNote=null, correspAuthorsNote=
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陈家征(1998—),男,汉族,安徽芜湖人,博士研究生。研究方向:隧道地下工程。E-mail:1595385165@qq.com。
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陈家征(1998—),男,汉族,安徽芜湖人,博士研究生。研究方向:隧道地下工程。E-mail:1595385165@qq.com。
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Schematic diagram of tunnel model, figureFileSmall=3w3RxMFQ0VCMzGzKBkSppw==, figureFileBig=7QgxIFRC605xjeKJSwh4Zg==, tableContent=null), ArticleFig(id=1218525108218544636, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780470466048863, language=CN, label=图1, caption=
隧道模型示意图, figureFileSmall=3w3RxMFQ0VCMzGzKBkSppw==, figureFileBig=7QgxIFRC605xjeKJSwh4Zg==, tableContent=null), ArticleFig(id=1218525108369539595, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780470466048863, language=EN, label=Fig.2, caption=
Cloud map of surrounding rock under different working conditions, figureFileSmall=+ogOCM35FHl33xje1ZadzA==, figureFileBig=4wNF/iBXFuM5PmlRQ1UCnw==, tableContent=null), ArticleFig(id=1218525108478591510, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780470466048863, language=CN, label=图2, caption=
不同工况下围岩云图, figureFileSmall=+ogOCM35FHl33xje1ZadzA==, figureFileBig=4wNF/iBXFuM5PmlRQ1UCnw==, tableContent=null), ArticleFig(id=1218525108612809248, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780470466048863, language=EN, label=Fig.3, caption=
Cloud map of surrounding rock under different grouting forms, figureFileSmall=XLZ7FAkG7SWiaErN8ZVk8A==, figureFileBig=n0iUTyyzVboVi6MoNEGDCw==, tableContent=null), ArticleFig(id=1218525108763804208, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780470466048863, language=CN, label=图3, caption=
不同注浆形式下围岩云图, figureFileSmall=XLZ7FAkG7SWiaErN8ZVk8A==, figureFileBig=n0iUTyyzVboVi6MoNEGDCw==, tableContent=null), ArticleFig(id=1218525108939964991, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780470466048863, language=EN, label=Fig.4, caption=
Cloud chart of pore water pressure in surrounding rock under different grouting forms, figureFileSmall=CLPbIVOV5j5AmcRf/jZnuA==, figureFileBig=sLFReghQHgUHiNzESfHEog==, tableContent=null), ArticleFig(id=1218525109036433994, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780470466048863, language=CN, label=图4, caption=
不同注浆形式下围岩孔隙水压力云图, figureFileSmall=CLPbIVOV5j5AmcRf/jZnuA==, figureFileBig=sLFReghQHgUHiNzESfHEog==, tableContent=null), ArticleFig(id=1218525109107737174, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780470466048863, language=EN, label=Fig.5, caption=
Cloud chart of initial pore water pressure under different grouting forms, figureFileSmall=BeDQpIyYPi1nf0peNGPtHA==, figureFileBig=8I4F38hhpvnnZJZF2e+oCA==, tableContent=null), ArticleFig(id=1218525109216789092, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780470466048863, language=CN, label=图5, caption=
不同注浆形式下初支孔隙水压力云图, figureFileSmall=BeDQpIyYPi1nf0peNGPtHA==, figureFileBig=8I4F38hhpvnnZJZF2e+oCA==, tableContent=null), ArticleFig(id=1218525109342618222, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780470466048863, language=EN, label=Fig.6, caption=
Stability changes of surrounding rock under different grouting ring thicknesses, figureFileSmall=0Qzzcjhte4yl7AiyMfEVyQ==, figureFileBig=8YxOOYi0zqPgcovIZWZePg==, tableContent=null), ArticleFig(id=1218525109439087224, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780470466048863, language=CN, label=图6, caption=
不同注浆圈厚度下围岩稳定性变化, figureFileSmall=0Qzzcjhte4yl7AiyMfEVyQ==, figureFileBig=8YxOOYi0zqPgcovIZWZePg==, tableContent=null), ArticleFig(id=1218525109577499272, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780470466048863, language=EN, label=Fig.7, caption=
Cloud chart of pore water pressure in surrounding rock under different grouting ring thicknesses, figureFileSmall=UGmFPyjShD0bL+aAKpmbjA==, figureFileBig=G81dNDcrQMWUofIVdv2+JQ==, tableContent=null), ArticleFig(id=1218525109682356880, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780470466048863, language=CN, label=图7, caption=
不同注浆圈厚度下围岩孔隙水压力云图, figureFileSmall=UGmFPyjShD0bL+aAKpmbjA==, figureFileBig=G81dNDcrQMWUofIVdv2+JQ==, tableContent=null), ArticleFig(id=1218525109824963233, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780470466048863, language=EN, label=Fig.8, caption=
Cloud map of initial pore water pressure under different grouting ring thicknesses, figureFileSmall=Ytq9oyITNQsTcYPXjNTOHg==, figureFileBig=gc9iRaMaA2YhoRpSgncoiQ==, tableContent=null), ArticleFig(id=1218525109967569583, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780470466048863, language=CN, label=图8, caption=
不同注浆圈厚度下的初支孔隙水压力云图, figureFileSmall=Ytq9oyITNQsTcYPXjNTOHg==, figureFileBig=gc9iRaMaA2YhoRpSgncoiQ==, tableContent=null), ArticleFig(id=1218525110085010106, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780470466048863, language=EN, label=Fig.9, caption=
Stability changes of surrounding rock under different grouting permeability coefficient ratios, figureFileSmall=7bl6X7nFbuVqZEybR6nO/w==, figureFileBig=dVbM79qkHqMRM/8nFsWDyw==, tableContent=null), ArticleFig(id=1218525110236005064, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780470466048863, language=CN, label=图9, caption=
不同注浆渗透系数比下围岩稳定性变化, figureFileSmall=7bl6X7nFbuVqZEybR6nO/w==, figureFileBig=dVbM79qkHqMRM/8nFsWDyw==, tableContent=null), ArticleFig(id=1218525110353445589, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780470466048863, language=EN, label=Fig.10, caption=
Cloud map of initial pore water pressure under different grouting permeability coefficient ratios, figureFileSmall=EqJnUf5yxbEpyhz+jOykzQ==, figureFileBig=QIeez12pH/5BsdupqQg5wQ==, tableContent=null), ArticleFig(id=1218525110466691803, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780470466048863, language=CN, label=图10, caption=
不同注浆渗透系数比初支孔隙水压力云图, figureFileSmall=EqJnUf5yxbEpyhz+jOykzQ==, figureFileBig=QIeez12pH/5BsdupqQg5wQ==, tableContent=null), ArticleFig(id=1218525110550577891, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780470466048863, language=EN, label=Fig.11, caption=
Effect picture of grouting, figureFileSmall=L4ijzfQzwMmwWJldDAz/cQ==, figureFileBig=/Z5YMd/tYYSnY02ihD4hRw==, tableContent=null), ArticleFig(id=1218525110638658281, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780470466048863, language=CN, label=图11, caption=
注浆效果图, figureFileSmall=L4ijzfQzwMmwWJldDAz/cQ==, figureFileBig=/Z5YMd/tYYSnY02ihD4hRw==, tableContent=null), ArticleFig(id=1218525110751904497, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780470466048863, language=EN, label=Fig.12, caption=
On-site displacement deformation curve at different monitoring positions of Dapingzi 1# fault, figureFileSmall=mXzav/TV1T9gAyHxfTmzcg==, figureFileBig=T7izawvg3ySYb1EMh6/l8w==, tableContent=null), ArticleFig(id=1218525110865150714, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780470466048863, language=CN, label=图12, caption=
大坪子1#断层不同监测位置处现场位移变形曲线, figureFileSmall=mXzav/TV1T9gAyHxfTmzcg==, figureFileBig=T7izawvg3ySYb1EMh6/l8w==, tableContent=null), ArticleFig(id=1218525111100031753, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780470466048863, language=EN, label=Fig.13, caption=
Simulated displacement deformation curves at different monitoring positions, figureFileSmall=4BF85nUoQxhpRTeSM48MWg==, figureFileBig=s/YQO/zURYq6toW7ZELV2g==, tableContent=null), ArticleFig(id=1218525111204889360, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780470466048863, language=CN, label=图13, caption=
不同监测位置处模拟位移变形曲线, figureFileSmall=4BF85nUoQxhpRTeSM48MWg==, figureFileBig=s/YQO/zURYq6toW7ZELV2g==, tableContent=null), ArticleFig(id=1218525111347495710, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780470466048863, language=EN, label=Table 1, caption=
Physical and mechanical parameters of surrounding rock and grouting materials
, figureFileSmall=null, figureFileBig=null, tableContent=
| 材料 | 重度/ (kN· m-3) | 弹性 模量/ GPa | 泊松 比 | 黏聚 力/ MPa | 内摩 擦角/ (°) | 渗透系数/ (m·s-1) | 孔隙 率 |
| 围岩 | 23.0 | 15.0 | 0.21 | 0.42 | 45 | 4.7×10-11 | 0.3.0 |
| 断层破碎带 | 22.0 | 2.5 | 0.32 | 0.1.0 | 25 | 3.8×10-10 | 0.45 |
| 注浆圈 | 25.7 | 24.6 | 0.18 | 1.5.0 | 48 | 2.4×10-12 | 0.22 |
| 初期支护 | 25.0 | 28.0 | 0.21 | — | — | 5.3×10-12 | 0.1.0 |
| 锚杆 | 78.0 | 210.0 | 0.3.0 | — | — | — | — |
| 二次衬砌 | 30.0 | 30.0 | 0.19 | — | — | 1.2×10-12 | 0.19 |
), ArticleFig(id=1218525111464936227, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780470466048863, language=CN, label=表1, caption=
围岩及注浆材料物理力学参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 材料 | 重度/ (kN· m-3) | 弹性 模量/ GPa | 泊松 比 | 黏聚 力/ MPa | 内摩 擦角/ (°) | 渗透系数/ (m·s-1) | 孔隙 率 |
| 围岩 | 23.0 | 15.0 | 0.21 | 0.42 | 45 | 4.7×10-11 | 0.3.0 |
| 断层破碎带 | 22.0 | 2.5 | 0.32 | 0.1.0 | 25 | 3.8×10-10 | 0.45 |
| 注浆圈 | 25.7 | 24.6 | 0.18 | 1.5.0 | 48 | 2.4×10-12 | 0.22 |
| 初期支护 | 25.0 | 28.0 | 0.21 | — | — | 5.3×10-12 | 0.1.0 |
| 锚杆 | 78.0 | 210.0 | 0.3.0 | — | — | — | — |
| 二次衬砌 | 30.0 | 30.0 | 0.19 | — | — | 1.2×10-12 | 0.19 |
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