长江三峡工程永久船闸中隔墩岩体变形分析及预测*

Abstract
Figure/Table
References (22)
Related Citation (15)

Download: PDF (890 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract The middle-isolated pier is one of the key structures of permanent shiplock of the Three Gorges Project on Yangtze River，China. The rockmass deformation of middle-isolated pier of the second shiplock under various operation conditions is studied. The numerical simulations using 2-D distinct element method and 3-D finite element method are applied to analyze rockmass deformation law. Simultaneously，the time series analysis and grey system theory are used to predict the tendency of rock displacements based on in-situ measured data. The comprehensive results can be summarized as follows. (1) The horizontal displacement perpendicular to axial line of shiplock varies with process of excavation，and is in steady state after excavation. During operation of shiplock，the displacement is slightly decreased. (2) The horizontal displacement parallel to axial line of shiplock is of tendency of developing to downstream. (3) The vertical displacement occurred as resilient deformation during excavation，and then subsidence with slightly various values takes place in different part of the middle-isolated pier under different operation cases.

Key words： the Three Gorges Project (TGP) middle-isolated pier deformation forecast

	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/Y2002/V21/I08/1132

1长	江水利委员会. 长江三峡水利枢纽永久船闸中隔墩裂缝分析及处理专题报告[R].武汉：长江水利委员会，1999
2长	江水利委员会综合勘测局. 永久船闸二闸室中隔墩地质条件及其对岩体变形和裂缝形成的影响分析[R].武汉：长江水利委员会综合勘测局，1999
3C	hen D.Engineering geological problems in the Three Gorges Project on Yangtze，China[J]. Engng.Geol.，1999，51(2)：183～193
4C	hen Changyan，Wu Xingchun，Wang Sijing，et al.Rock mass quality evaluation of shiplock slope in Three Gorges Project (TGP)，China[A]. In：Wang Sijing ed. Advances in Engineering Geology[C]. Yichang：China Three Gorges Publishing House. 1996，9～15
5W	u Xingchun，Wang Sijing.Unloading characteristics of rock mass in shiplock slope of Three Gorges Project[A]. In：Zhang Zhuoyuan ed. Development in Solid Earth Sciences[C]. Beijing：Sciences Press，1996
6张	有天. 岩石高边坡的变形与稳定[M]. 北京：中国水利水电出版社. 1999
7周	维垣，肖洪天，剡公瑞. 三峡船闸高边坡岩体渗流及稳定分析[J]. 岩石力学与工程学报，1998，17(增)：818～822
8寇	晓东，周维垣，杨若琼. FLAC-3D进行三峡船闸高边坡稳定分
析[J]	岩石力学与工程学报，2001，20(1)：6～10
9杨	启贵，王冬珍. 三峡永久船闸中隔墩裂缝原因分析[J]. 水电能源科学，1999，17(4)：36～38
10	戴会超. 三峡永久船闸中隔墩岩石力学问题研究[J]. 岩石力学与工程学报，2001，20(5)：680～684
11	代贞龙，傅冰清，周若. 三峡永久船闸三闸首中隔墩施工期变形机制的研究[J]. 岩石力学与工程学报，2001，20(5)：747～752
12	邬爱清，朱杰兵，付敬等. 三峡工程永久船闸中隔墩施工期变形机制的研究[J]. 岩石力学与工程学报，2001，20(增)：1 649～1 652
13	魏群.散体单元法的基本原理数值方法及程序[M]. 北京：科学出版社，1991
14	Cundall P A. A computer model for simulating progressive，large scale movements in blocky rock systems[A]. In：Muller L ed. Proc. Int. Symp. Rock Fracture，ISRM[C]. Nancy：[s. n.]，1971
15	Cundall P A，Strack O D L. A discrete numericalmodel for granular assemblies[J]. Geotechnique，1979，29(1)：47～65
16	Box G E P，Jenkins G M. Time series analysis，forecasting andcontrol[M]. San Francisco：Holden-Day，1970
17	陈子荫.时间序列分析[J]. 岩土工程学报，1991，13(4)：P87～95
18	邓聚龙. 灰色系统理论教程[M]. 武汉：华中理工大学出版社，1990
19	Deng Julong. Properties of relational space for grey system[A]. In：Deng Julong ed. Grey System[C]. Beijing：China Ocean Press，1988
20	Deng Julong. Properties of multivariable grey model GM(1，N)[J]. J. Grey System，1989，1(1)：25～42
21	Man Lin. An applicationof the GM(1，1) model：the prediction of flight safety[J]. J. Grey System，1989，1(1)：99～100
22	Yin Boming. Three-checks system for manuscriptsand GM(1，1) model[J]. J. Grey System，1990，2(1)：89～100