结构性黏土边界面模型在FLAC3D中的开发及隧道施工数值模拟

doi:10.13722/j.cnki.jrme.2020.0030

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Abstract According to the secondary development platform provided by FLAC3D，the anisotropic structured clay model(ASCM) is implemented using the coding language of C++. The model is first verified by simulating the undrained triaxial tests on K0 consolidated Shanghai clay. Numerical simulation of ground loss during tunnel construction is then performed，and the influences of clay structure and adhesive stress on ground surface settlement are analysed. The results show that the user-defined ASCM constitutive model can be used for numerical simulation of 3D tunnels and that the calculated ground surface settlement curves due to tunnel construction agree well with measurements of the centrifugal model tests. The profiles of the ground settlement curve like a “V” with the peak point located near the centre of the two tunnels with a spacing of 1.5D. With increasing the spacing distance of twin-tunnel，the settlement curve shape changes from “V” to “W” with two peak points located above the tunnel axis. Finally，the influence of clay structure on tunnel construction is numerically analysed. It is shown that the influence of clay structure on the ground deformation shape under the disturbance of ground loss in tunnel construction is not significant while that the ground settlement at the tunnel axis increases significantly due to structural deterioration. The influence of the clay adhesive stress on the ground settlement and deformation shape under the disturbance of ground loss in tunnel construction is not significant.

Key words： tunnelling engineering soil structure clay secondary development bounding surface model

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	Articles by authors
	LIU Junxiu1
	2
	YIN Zhenyu3
	YANG Jie3
	ZHU Shu4

Cite this article:

LIU Junxiu1,2,YIN Zhenyu3, et al. Implementation of a bounding surface model of structured clays in FLAC3D and numerical simulation of tunnel construction#br#[J]. , 2020, 39(6): 1277-1286.

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http://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2020.0030 OR http://rockmech.whrsm.ac.cn/EN/Y2020/V39/I6/1277

[24]	Divall S. Ground movements associated with twin-tunnel construction in clay[D]. London：City University London，2013.
[5]	周成，沈珠江，陈铁林，等. 结构性粘土的边界面砌块体模型[J]. 岩土力学，2003，24(3)：317-321.(ZHOU Cheng，SHEN Zhujiang，CHEN Tielin，et al. A bouding surface masonry model for structured clays[J]. Rock and Soil Mechanics，2003，24(3)：317-321.(in Chinese))
[3]	Liu M D，Carter J P. A structured Cam Clay model[J]. Canadian Geotechnical Journal，2002，39(6)：1 313-1 332.
[11]	杨杰，尹振宇，黄宏伟，等. 面向边界面模型的切面算法扩展[J]. 岩土力学，2017，38(12)：3 436-3 444. (YANG Jie，YIN Zhenyu，HUANG Hongwei，et al. Extension of cutting plane algorithm for a bounding surface model[J]. Rock and Soil Mechanics，2017，38(12)：3 436-3 444.(in Chinese))
[16]	陈育民，刘汉龙. 邓肯-张本构模型在 FLAC3D中的开发与实现[J]. 岩土力学，2007，28(10)：2 123-2 126.(CHEN Yumin，LIU Hanlong. Development and implementation of Duncan-Chang constitutive model in FLAC3D[J]. Rock and Soil Mechanics，2007，28(10)： 2 123-2 126. (in Chinese))
[2]	Clayton C R I，Hight D W，Hopper R J. Progressive destructuring of Bothkennar clay. implications for sampling and reconsolidation procedures[J]. Géotechnique，1992，42(2)：219-239.
[6]	HUANG M，LIU Y，SHENG D. Simulation of yielding and stress-stain behavior of shanghai soft clay[J]. Computers and Geotechnics，2011，38(3)：341-353.
[8]	Yin Z Y，Karstunen M，Chang C S，et al. Modeling time-dependent behavior of soft sensitive clay[J]. Journal of geotechnical and geoenvironmental engineering，2011，137(11)：1 103-1 113.
[10]	杨杰，尹振宇，黄宏伟，等. 基于扰动状态概念硬化参量的结构性黏土边界面模型[J]. 岩土工程学报，2017，39(3)：554-561. (YANG Jie，YIN Zhenyu，HUANG Hongwei，et al. Bounding surface plasticity model for structured clays using disturbed state concept- based hardening variables[J]. Chinese Journal of Geotechnical Engineering，2017，39(3)：554-561.(in Chinese))
[13]	王春波，丁文其，乔亚飞. 硬化土本构模型在FLAC3D中的开发及应用[J]. 岩石力学与工程学报，2014，33(1)：199-208.(WANG Chunbo，DING Wenqi，QIAO Yafei. Development and application of hardening soil constitutive model in FLAC3D[J]. Chinese Journal of Rock Mechanics and Engineering，2014，33(1)：199-208.(in Chinese))
[14]	邹佑学，王睿，张建民. 砂土液化大变形模型在FLAC3D中的开发与应用[J]. 岩土力学，2018，39(4)：1 525-1 534.(ZOU Youxue，WANG Rui，ZHANG Jianmin. Implementation of a plasticity model for large post-liquefaction deformation of sand in FLAC3D[J]. Rock and Soil Mechanics，2018，39(4)：1 525-1 534.(in Chinese))
[7]	Yin Z Y，Jin Y F，Shen S L，et al. An efficient optimization method for identifying parameters of soft structured clay by an enhanced genetic algorithm and elastic-viscoplastic model[J]. Acta Geotechnica，2017，12(4)：849-867.
[19]	Kamruzzaman A H，Chew S H，Lee F H. Structuration and destructuration behavior of cement-treated Singapore marine clay[J]. Journal of Geotechnical and Geoenvironmental Engineering，2009，135(4)：573-589.
[21]	Dafalias Y F. Bounding surface plasticity. I：Mathematical foundation and hypoplasticity[J]. Journal of Engineering Mechanics，1986，112(9)：966-987.
[15]	褚卫江，徐卫亚，杨圣奇，等. 基于 FLAC3D岩石黏弹塑性流变模型的二次开发研究[J]. 岩土力学，2006，27(11)：2 005-2 010.(CHU Weijiang，XU Weiya，YANG Shengqi，et al. Secondary development of a viscoelasto-plastic rheological constitutive model of rock based on FLAC3D[J]. Rock and Soil Mechanics，2006，27(11)：2 005-2 010. (in Chinese))
[23]	Divall S，Goodey R J，Taylor R N. Ground movements generated by sequential twin-tunnelling in over-consolidated clay[C]// 2nd European Conference on Physical Modelling in Geotechnics. The Netherlands：Delft，2012：1-10.
[1]	Leroueil S，Vaughan P R. The general and congruent effects of structure in natural soils and weak rocks[J]. Géotechnique，1990，40(3)：467-488.
[9]	Yin Z Y，Hattab M，Hicher P Y. Multiscale modeling of a sensitive marine clay[J]. International Journal for Numerical and Analytical Methods in Geomechanics，2011，35(15)：1 682-1 702.
[17]	Itasca Consulting Group. Fast lagrangian analysis of continua in 3 dimensions[M]. MN，USA：Itasca Consulting Group，Minneapolis，2018.
[25]	Zhu B Q，Jin Y F，Yin Z Y，et al. Numerical analysis of multi-tunnel interaction in clay[C]// GeoShanghai International Conference. Springer，[S. l.]：Singapore，2018：412-419.
[4]	WHEELER S J，Näätänen A，Karstunen M，et al. An anisotropic elastoplastic model for soft clays[J]. Canadian Geotechnical Journal，2003，40(2)：403-418.
[12]	杨杰，尹振宇，金银富，等. 结构性黏土模型在 FLAC 中的二次开发及应用[J]. 计算力学学报，2017，34(6)：739-747.(YANG Jie，YIN Zhenyu，JIN Yinfu，et al. Development and application of a structured clay model in FLAC[J]. Chinese Journal of Computational Mechanics，2017，34(6)：739-747.(in Chinese))
[18]	Horpibulsuk S，Miura N，Bergado D T. Undrained shear behavior of cement admixed clay at high water content[J]. Journal of Geotechnical and Geoenvironmental Engineering，2004，130(10)：1 096-1 105.
[20]	Manzari M T，Nour M A. On implicit integration of bounding surface plasticity models[J]. Computers and structures，1997，63(3)：385-395.
[22]	Divall S，Goodey R J. Twin-tunnelling-induced ground movements in clay[C]// Proceedings of the Institution of Civil Engineers：Geotechnical Engineering. [S. l.]：[s. n.]，2015：1-10.
[26]	Lee K M，Rowe R K，Lo K Y. Subsidence owing to tunnelling. I. Estimating the gap parameter[J]. Canadian Geotechnical Journal，1992，29(6)：929-940.