隧道断层泥注浆加固机理模型试验研究

Abstract
Figure/Table
References
Related Citation (15)

Download: PDF (1248 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract In order to investigate the mechanism of grouting strengthening the fault gouge of Yonglian tunnel，a test system including a module of grouting technology，a module of injection medium and a module of information collection was designed. The orthogonal uniaxial compression tests，tests for the typical characteristics of pulp-rock interfaces and the scanning electrum micrographs(SEM) tests for fault gouge were carried out. The uniaxial compressive strength of the fault gouge was increased by 181%–2 535% after grouting. The strengthened mass was damaged through the process of the cracking of pulp veins，the breaking of the pulp-rock interfaces and the failure of the soil grout composite. The fault gouge was strengthened by the skeleton strengthening mode，and the key factor for raising the grouting effect was the grouting pressure. The cohesion of the pulp-rock interfaces was increased by 93%–274% after grouting. The influences on the strength of pulp-rock interfaced under the different grouting pressures，materials and initial dry densities were analyzed. When the cement slurry was used，the cohesion was increased by 125%–148%. The fault gouge was transformed from the floc structure into the overall densified structure after grouting. The pulp-rock interface was composed of the cementation plane，the transition area of permeability and the transitional area with micro factures. The direct and indirect strengthening modes of the pulp-rock interface are defined.

Key words： tunnelling engineering Yonglian tunnel fault gouge model test grouting strengthening mechanism pulp-rock interface scanning electron microscope(SEM)

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors

Cite this article:

URL:

https://rockmech.whrsm.ac.cn/EN/Y2015/V34/I5/924

[1] 钱七虎. 地下工程建设安全面临的挑战与对策[J]. 岩石力学与工程学报，2012，31(10)：1 945–1 956.(QIAN Qihu. Challenges faced by underground projects construction safety and countermeasures[J]. Chinese Journal of Rock Mechanics and Engineering，2012，31(10)：1 945–1 956.(in Chinese)) [2] 张庆松，韩伟伟，李术才，等. 灰岩角砾岩破碎带涌水综合注浆治理[J]. 岩石力学与工程学报，2013，31(12)：2 412–2 419.(ZHANG Qingsong，HAN weiwei，LI Shucai，et al. Comprehensive grouting treatment for water gushinganalysis in limestone breccias fracture zone[J]. Chinese Journal of Rock Mechanics and Engineering，2013，31(12)：2 412–2 419.(in Chinese)) [3] 李术才，张霄，张庆松，等. 地下工程涌突水注浆止水浆液扩散机理和封堵方法研究[J]. 岩石力学与工程学报，2011，30(12)： 2 377–2 396.(LI Shucai，ZHANG Xiao，ZHANG Qingsong，et al. Research on mechanism of grout diffusion of dynamic grouting and plugging method in water inrush of underground engineering[J]. Chinese Journal of Rock Mechanics and Engineering，2011，30(12)：2 377–2 396.(in Chinese)) [4] 李鹏，张庆松，张霄，等. 基于模型试验的劈裂注浆机理分析[J]. 岩土力学，2014，35(11)：3 221–3 230.(LI Peng，ZHANG Qingsong，ZHANG Xiao，et al. Analysis of fracture grouting mechanism based on model test[J]. Rock and Soil Mechanics，2014，35(11)：3 221–3 230. (in Chinese)) [5] SILAS C Nichols，DEBORAH J.Goodings. Physical model testing of compaction grouting in cohesionless soil[J]. Journal of Geotechnical and Geoenvironmental Engineering，2000，126(9)：848–852. [6] ADAM Bezuijen. Compensation Grouting in Sand-Experiments， Field Experiences and Mechanisms[D]. Delf：t Doctoral thesis of Delft University of Technology，2010. [7] GOTHALL R，STILLE H. Fracture-fracture interaction during grouting[J]. Tunnelling and Underground SpaceTechnology，2010，25(3)：199–204. [8] EISA K. Compensation grouting in sand[D]. London：University of Cambridge，2008. [9] 葛家良，陆士良. 注浆模拟试验及其应用的研究[J]. 岩土工程学报，1997，19(3)：28–33.(GE Jialiang，LU Shiliang. Study on grouting simulation experiment and its application[J]. Chinese Journal of Geotechnical Engineering，1997，19(3)：28–33.(in Chinese)) [10] 张农，侯朝炯，陈庆敏，等. 岩石破坏后的注浆固结体的力学性能[J]. 岩土力学，1998，19(3)：50–53.(ZHANG Nong，HOU Chaojiong，CHEN Qingmin，et al. Mechanical properties of broken rock after grouting reinforcement[J]. Rock and Soil Mechanics，1998，19(3)：50–53.(in Chinese)) [11] 胡巍，隋旺华，王档良，等. 裂隙岩体化学注浆加固后力学性质及表征单元体的试验研究[J]. 中国科技论文，2013，8(5)：408–412. (HU Wei，SUI Wanghua，WANG Dangliang，et al. Experimental investigation on mechanical properties and representative elementary volume for chemically grouted fractured rock masses[J]. CHINA SCIENCE PAPER，2013，8(5)：408–412.(in Chinese) ) [12] 宗义江，韩立军，韩贵雷. 破裂岩体承压注浆加固力学特性试验研究[J]. 采矿与安全工程学报，2013，30(4)：483–488.(ZONG Yijiang，HAN Lijun，HAN Guilei. Mechanical characteristics of confined grouting reinforcement for cracked rock mass[J]. Journal of Mining and Safety Engineering，2013，30(4)：483–488.(in Chinese)) [13] 韩立军，宗义江，韩贵雷，等. 岩石结构面注浆加固抗剪特性试验研究[J]. 岩土力学，2011，32(9)：2 570–2 576.(HAN Lijun，ZONG Yijiang，HAN Guilei. Study of shear properties of rock structural plane by grouting reinforcement[J]. Rock and Soil Mechanics，2011，32(9)：2 570–2 576.(in Chinese)) [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.(in Chinese)) [15] 李术才，韩伟伟，张庆松，等. 地下工程动水注浆速凝浆液黏度时变特性研究[J]. 岩石力学与工程学报，2013，32(1)：1–7.(LI Shucai，HAN Weiwei，ZHANG Qingsong，et al. Research on time dependent behavior of viscosity of fast curing grouts in underground construction grouting[J]. Chinese Journal of Rock Mechanics and Engineering，2013，32(1)：1–7.(in Chinese)) [16] 邹金峰，徐望国，罗强，等. 饱和土中劈裂灌浆压力研究[J]. 岩土力学，2008，29(7)：1 082–1 086.(ZOU Jinfeng，XU Wangguo，LUO Qiang，et al. Study on grouting pressure of fracture grouting in saturated soil[J]. Rock and Soil Mechanics，2008，29(7)：1 082–1 086. (in Chinese)) [17] 刘人太，李术才，张庆松，等. 一种新型动水注浆材料的试验与应用研究[J]. 岩石力学与工程学报，2011，30(7)：1 454–1 459.(LIU Rentai，LI Shucai，ZHANG Qingsong，et al. Experiment and application research on a new type of dynamic water grouting material[J]. Chinese Journal of Rock Mechanics and Engineering，2011，30(7)：1 454–1 459.(in Chinese)) [18] 王迎超. 山岭隧道塌方机理及防灾方法[D]. 杭州：浙江大学，2010.(WANG Yingchao. Mechanism and control measures of collapse of mountain tunnel[D]. Hangzhou：Zhejiang University，2010.(in Chinese)) [19] 邝健政，昝月稳，王杰. 岩土注浆理论与工程实例[M]. 北京：科学出版社，2001.(KUANG Jianzheng，ZAN Yuewen，WANG Jie. Grouting theory of rock and soils and engineering examples[M]. Beijing：Science Press，2001.(in Chinese)) [20] 丁建文，刘铁平，曹玉鹏，等. 高含水率疏浚淤泥固化土的抗压试验与强度预测[J]. 岩土工程学报，2013，35(zk2)：55–60.(DING JianWen，LIU Tieping，CAO Yupeng，et al. Unconfined compression tests and strength prediction method for solidified soils of dredged clays with high water content[J]. Chinese Journal of Geotechnical Engineering，2013，35(zk2)：55–60.(in Chinese)) [21] 彭丽云，刘建坤，田亚护，等. 正融土无侧限抗压试验研究[J]. 岩土工程学报，2008，30(9)：1 338–1 342.(PENG Liyun，LIU Jiankun，TIAN Yahu，et al. Unconfined compression tests on thawing soil[J]. Chinese Journal of Geotechnical Engineering，2008，30(9)：1 338–1 342.(in Chinese)) [22] 邹金锋，李亮，杨小礼，等. 土体劈裂灌浆力学机理分析[J]. 岩土力学，2006，27(4)：625–628.(ZOU Jinfeng，LI Liang，YANG Xiaoli，et al. Mechanism analysis of fracture grouting in soil[J]. Rock and Soil Mechanics，2006，27(4)：625–628.(in Chinese)) [23] 王起才，张戎令. 劈裂注浆浆液走势与不同压力下土体位移试验研究[J]. 铁道学报，2011，33(12)：107–111.(WANG Qingcai，ZHANG Rongling. Experiental research on the trend of slurry about fracturing grouting and soil diaplacement in different pressure[J]. Journal Of The China Railway Society. 2011，33(12)：107–111.(in Chinese)) [24] 周喻，吴顺川，张晓平. 岩石节理直剪试验颗粒流宏细观分析[J]. 岩石力学与工程学报，2012，31(6)：1 245–1 256.(ZHOU Yu，WU Shunchuan，ZHANG Xiaoping. Macro-and meso-analyses of rock joint direct shear test using particle flow theory[J]. Chinese Journal of Rock Mechanics and Engineering，2012，31(6)：1 245–1 256.(in Chinese)) [25] 张忠苗，邹健，贺静漪，等. 黏土中压密注浆及劈裂注浆室内模拟试验分析[J]. 岩土工程学报，2009，31(12)：1 818–1 824. (ZHANG Zhongmiao，ZOU Jian，HE Jingyi，et al. Laboratory tests on compaction grouting and fracture grouting of clay[J]. Chinese Journal of Geotechnical Engineering，2009，31(12)：1 818–1 824.(in Chinese))