非可溶岩隧道突涌灾害预测研究及工程应用

Abstract
Figure/Table
References
Related Citation (15)

Download: PDF (12175 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract Inrush accidents generally happen in soluble rock tunnels during underground constructions. However，the number of inrush disasters reported in non-soluble rock tunnels have been increasing recently. They can lead to serious disasters and huge economic losses in tunnel construction. Cases studies were thus carried out and the analysis of three inrush accidents revealed that the causes of the inrush in non-soluble rock tunnels were due to the effects of excavation and blasting disturbance leading to the water and fragmental materials occurred in the fractured and weak zones flowing into the tunnels under their own pressures. The risks carrying environment must have the required physical，spatial and triggering conditions simultaneously：the physical conditions refers to the existence of abundant water and in-situ or exogenous fragments including gravel，sand and mud，etc.；the spatial condition refers to the fracture zone and the weak zone storing and transferring the inrushing materials；The triggering condition is the disturbance to the rock caused by excavation and blasting during the tunnel construction. The predication of inrush disaster in the construction of non-soluble rock tunnels is therefore to identify the fracture and weak zones containing the potential inrushing materials and the components and cementation level of material in two zones a head of the front face of tunneling. A comprehensive geological and geophysical detection and drilling scheme was then carried out to according to the material and spatial conditions in inrush disaster；The characteristics of seismic dynamic response of the parameters such as the reflection amplitude ratio and the wave axis similarity to anomaly geological objects in tunnel geologic prediction(TGP) were constructed. The approach was applied to the fault fracture zone F17 in anterior tunnels. The macro engineering geological analysis，geological investigation and experiments in excavated sections and the trends tracking were performed to reveal the statistical and mechanical characteristics of the surrounding rocks. The long range TGP and the short range ground penetration radar detections and the horizontal drilling were performed to identify the risks containing environment of inrushing disaster in the section unexcavated. The precise locating of the position，the scale and the spatial distribution of the fault fracture zone were thus be achieved. The material components within the zones and the cementation level were detected and the occurrences of inrush accidents were predicted successfully.

Key words： tunnelling engineering non-soluble rock inrush disaster advanced geological prediction

Received: 31 October 2013

	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/Y2014/V33/I4/786

[1]	王梦恕. 对岩溶地区隧道施工水文地质超前预报的意见[J]. 铁道勘查，2004，30(1)：7-9.(WANG Mengshu. Hydrologic and geological forecast of tunnel construction in the karst district[J]. Railway Investingation and Surveying，2004，30(1)：7-9.(in Chinese))
[2]	石少帅，李术才，李利平，等. 岩溶区隧道暗河的综合预报及治理方案研究[J]. 岩土力学，2012，33(1)：227-233.(SHI Shaoshuai，LI Shucai，LI Liping，et al. Comprehensive geological prediction and management of underground river in karst areas[J]. Rock and Soil Mechanics，2012，33(1)：227-233.(in Chinese))
[3]	李利平，李术才，陈军，等. 基于岩溶突涌水风险评价的隧道施工许可机制及其应用研究[J]. 岩石力学与工程学报，2011，30(7)：1 345-1 356.(LI Liping，LI Shucai，CHEN Jun，et al. Construction license mechanism and its application based on karst water inrush evaluation[J]. Chinese Journal of Rock Mechanics and Engineering，2011，30(7)：1 345-1 356.(in Chinese))
[4]	李术才，薛翊国，张庆松，等. 高风险岩溶地区隧道施工地质灾害综合预报预警关键技术研究[J]. 岩石力学与工程学报，2008，27(7)：1 297-1 307.(LI Shucai，XUE Yiguo，ZHANG Qingsong，et al. Key technology study on comprehensive prediction and early-warning of geological hazards during tunnel construction in high-risk karst areas[J]. Chinese Journal of Rock Mechanics and Engineering，2008，27(7)：1 297-1 307.(in Chinese)) " target="_blank">
[5]	SONG K，CHO G C，CHANG S B. Identification，remediation，and analysis of karst sinkholes in the longest railroad tunnel in South Korea[J]. Engineering Geology，2012，135/136：92-105. " target="_blank">
[6]	TSENG D J，TSAI B R，CHANG L C. A case study on ground treatment for a rock tunnel with high groundwater ingression in Taiwan[J]. Tunnelling and Underground Space Technology，2001，16(3)：175-183. " target="_blank">
[7]	ZHANG G H，SONG L，et al. A case study on treatment measures for a rock tunnel-final[J]. Disaster Advance，2012，5(4)：1 451-1 457. " target="_blank">
[8]	ZHANG C Q，FENG X T，ZHOU H. Estimation of in situ stress along deep tunnels buried in complex geological conditions[J]. International Journal of Rock Mechanics and Mining Sciences，2012，52(6)：139-162. " target="_blank">
[9]	HOEK E. Big tunnel in bad rock[J]. Journal of Geotechnical and Geoenvironmental Engineering，2001，127(9)：726-740. " target="_blank">
[10]	LIN H I，LEE C H. An approach to assessing the hydraulic conductivity disturbance in fractured rocks around the Syueshan tunnel，Taiwan[J]. Tunnelling and Underground Space Technology，2009，24(2)：222-230.
[11]	赵永贵，刘浩，孙宇，等. 隧道地质超前预报研究进展[J]. 地球物理学进展，2003，18(3)：460-464.(ZHAO Yonggui，LIU Hao SUN Yu，et al. Research progress in tunnel geological prediction[J]. Progress in Geophysics，2003，18(3)：460-464.(in Chinese))
[12]	刘志刚，刘秀峰. 断层参数预测法预报隧道断层[J]. 岩石力学与工程学报，2003，22(9)：1 547-1 550.(LIU Zhigang，LIU Xiufeng. Determination of tunnel fault by the method of fault parameter forecast[J]. Chinese Journal of Rock Mechanics and Engineering，2003，22(9)：1 547-1 550.(in Chinese))
[13]	CREMER F，JONG de W，SCHUTTE K. Fusion of polarimetric infrared features and GPR features for landmine detection[C]// Proceeding of the 2nd International Workshop on Advanced Ground Penetrating Radar(IWAGPR). Delft，Netherlands：[s. n.]，2003：1-6. " target="_blank">
[14]	李大心. 探地雷达方法与应用[M]. 北京：地质出版社，1994：89-91.(LI Daxin. Ground penetrating radar method and its application[M]. Beijing：Geological Publishing House，1994：89-91.(in Chinese)) " target="_blank">