富水陡倾斜大理岩增透引流注浆技术研究:以天山胜利隧道4号通风竖井为例

doi:10.3973/j.issn.2096-4498.2024.02.012

中国科学引文数据库（CSCD）来源期刊
中文核心期刊中文科技核心期刊
Scopus RCCSE中国核心学术期刊
美国EBSCO数据库俄罗斯《文摘杂志》
《日本科学技术振兴机构数据库（中国）》

隧道建设（中英文） ›› 2024, Vol. 44 ›› Issue (2): 332-340.DOI: 10.3973/j.issn.2096-4498.2024.02.012

富水陡倾斜大理岩增透引流注浆技术研究:以天山胜利隧道4号通风竖井为例

毛锦波1，李亚隆1，姬中奎2，韩强2，张小虎1，张斌斌1，孙佰军1，赵红刚1

（1. 中交二公局东萌工程有限公司，陕西西安 710119； 2. 中煤科工西安研究院（集团）有限公司，陕西西安 710077）

出版日期:2024-02-20 发布日期:2024-03-11
作者简介:毛锦波（1982—），男，陕西西安人，2004年毕业于河北工程大学，土木工程专业，本科，正高级工程师，主要从事隧道与地下工程领域的施工及管理工作。E-mail: fluiway@163.com。

Grouting Technology for Steeply Inclined Marble with Rich Water by Increasing Permeability and Drainage: A Case Study of No. 4 Ventilation Shaft of Tianshan Shengli Tunnel

MAO Jinbo1, LI Yalong1, JI Zhongkui2, HAN Qiang2, ZHANG Xiaohu1, ZHANG Binbin1, SUN Baijun1, ZHAO Honggang1

(1. CCCC Second Highway Engineering Co., Ltd., Dongmeng Engineering Co., Ltd., Xi′an 710119, Shaanxi, China; 2. Xi′an Research Institute Co., Ltd., China Coal Technology and Engineering Group Corp., Xi′an 710077, Shaanxi, China)

Online:2024-02-20 Published:2024-03-11

摘要/Abstract

摘要： 为解决天山胜利隧道4号通风竖井掘进水量大，造成无法施工的技术难题，考虑到富水大理岩地层倾角大、裂隙开度小、吃浆量弱的工程特征，构建陡倾斜大理岩增透引流注浆模型。基于广义宾汉流体本构方程，提出考虑大理岩裂隙浆液流变特征的扩散运移方程。根据方程可知，裂隙倾角、初次启劈压力、二次启劈压力、裂隙水压力、设计劈裂扩散距离及浆液黏度时变性是影响注浆压力的关键因素。在此基础上，确定关键注浆参数及其施工工艺，通过高压水脉冲式压裂增透岩体裂隙通道和引流注浆等关键技术，实现浆液在陡倾斜大理岩裂隙通道中的控制性扩散。地面预注浆治理后，运用简易水文观测、孔内电视、光纤测温3种手段对现场注浆堵水效果进行监测，地层揭露结果表明，竖井掘进掌子面处无明显渗水，注浆治理后的井筒涌水量低于1 m3/h，能确保天山胜利隧道4号通风竖井安全高效施工。

关键词: 隧道工程, 陡倾斜大理岩, 富水岩层, 劈裂注浆, 效果分析

Abstract: Massive water volume occurred during the excavation of No. 4 ventilation shaft of the Tianshan Shengli tunnel, leading to the construction stop. Considering the engineering characteristics of the large inclination angle, small crack opening, and weak slurry intake of waterrich marble strata, a steeply inclined marbleenhanced permeability drainage grouting model is constructed. Then, based on the generalized Bingham fluid constitutive equation, a diffusion transport equation considering the rheological characteristics of marble fracture slurry is proposed. The equation demonstrates that the inclination angle of the crack, initial and secondary splitting pressures, crack water pressure, design splitting diffusion distance, and timevarying viscosity of the slurry are the key factors affecting the grouting pressure. On this basis, key grouting parameters and construction techniques are determined, and key technologies such as highpressure water pulse fracturing to increase the permeability in rock fracture channels and drainage grouting are used to achieve controlled diffusion of grout in steeply inclined marble fracture channels. After ground pregrouting treatment, methods including simple hydrological observation, borehole television, and fiber optic temperature measurement are used to monitor the water blocking effect of onsite grouting. The geological exposure results demonstrate no obvious water seepage at the excavation face of the vertical shaft, and the water inflow of the shaft after grouting treatment remains under 1 m3/h, ensuring the safe and efficient construction of No. 4 ventilation shaft of the Tianshan Shengli tunnel. The engineering practice shows that grouting water blocking technology based on enhanced splitting drainage exhibits a remarkable effect, thus providing a novel idea for the treatment of water inrush disasters in waterrich and steep marble strata.

Key words: tunnel engineering, steeply inclined marble, waterrich strata, fracture grouting, effect analysis

毛锦波, 李亚隆, 姬中奎, 韩强, 张小虎, 张斌斌, 孙佰军, 赵红刚.

富水陡倾斜大理岩增透引流注浆技术研究:以天山胜利隧道4号通风竖井为例 [J]. 隧道建设, 2024, 44(2): 332-340.

MAO Jinbo, LI Yalong, JI Zhongkui, HAN Qiang, ZHANG Xiaohu, ZHANG Binbin, SUN Baijun, ZHAO Honggang. Grouting Technology for Steeply Inclined Marble with Rich Water by Increasing Permeability and Drainage: A Case Study of No. 4 Ventilation Shaft of Tianshan Shengli Tunnel[J]. Tunnel Construction, 2024, 44(2): 332-340.

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富水陡倾斜大理岩增透引流注浆技术研究:以天山胜利隧道4号通风竖井为例

Grouting Technology for Steeply Inclined Marble with Rich Water by Increasing Permeability and Drainage: A Case Study of No. 4 Ventilation Shaft of Tianshan Shengli Tunnel

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