硬化土本构模型在FLAC3D中的开发及应用

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Abstract The finite difference scheme of hardening soil constitutive model is derived based on the increment theory of plastic. The finite difference program of hardening soil constitutive model is established so as that the secondary development of hardening soil constitutive model is realized with the platform for secondary development offered by FLAC3D software in VC++ environment. And then，the steps，methods and program essentials of constitutive model?s secondary development based on FLAC3D software are given. The comparison analysis between test results under different stress paths and FLAC3D numerical simulation results with different constitutive model is made so as to verify that the development of hardening soil constitutive model in FLAC3D is correct and necessity. Comparative analysis shows that the FLAC3D numerical simulation results with hardening soil constitutive model accord with test results. The parameters of hardening Soil constitutive model is simple and can be easily determined by conventional triaxial test. Hardening soil constitutive model can not only reflect the nonlinear characteristics of soil，but also can reflect complex stress path of deep foundation pit engineering. So，hardening soil constitutive model is more suitable for computing analysis of deep foundation pit engineering compared with other constitutive model of soil. Implementation of secondary development that hardening soil constitutive model is developed in FLAC3D software expands the scope of FLAC3D application，to some extent，it makes up for disadvantages of FLAC3D in analysis of geotechnical engineering，especially deep foundation pit engineering.

Key words： foundation pit engineering complex stress paths hardening soil constitutive model FLAC3D secondary development stress path tests

Received: 30 January 2013

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https://rockmech.whrsm.ac.cn/EN/Y2014/V33/I1/199

[1] 李广信. 高等土力学[M]. 北京：清华大学出版社，2004：32–113.(LIU Guangxin. Advanced soil mechanics[M]. Beijing：Tsinghua University Press，2004：32–113.(in Chinese)) [2] 管飞. 基于HSS本构模型的软土超大型深基坑3D数值分析[J]. 岩土工程学报，2010，32(增1)：177–180.(MGUAN Fei. 3D numerical analysis for a ultra-large deep excavation in soft clay based on HSS constitutive model[J]. Chinese Journal of Geotechnical Engineering，2010，32(Supp.1)：177–180.(in Chinese)) [3] 刘国彬，王卫东. 基坑工程手册[M]. 北京：中国建筑工业出版社，2009：213–226.(LIU Guobin，WANG Weidong. The manual of foundation pit engineering[M]. Beijing：China Architecture and Building Press，2009：213–226.(in Chinese)) [4] 赵锡宏，李蓓，杨国祥，等. 大型超深基坑工程实践与理论[M]. 北京：人民交通出版社，2005：116–141.(ZHAO Xihong，LI Bei，YANG Guoxiang，et al. Practice and theory for specially big and deep excavation engineering[M]. Beijing：China Communications Press，2005：116–141.(in Chinese)) [5] 马晓文，艾英钵. 基坑开挖土体卸荷特性研究进展[J]. 岩土工程学报，2011，33(增1)：182–186.(MA Xiaowen，AI Yingbo. Review of soil behaviors under excavation unloading of foundation pits[J]. Chinese Journal of Geotechnical Engineering，2011，33(Supp.1)：182–186.(in Chinese)) [6] 陈育民，刘汉龙. FLAC/FLAC3D基础与工程实例[M]. 北京：中国水利水电出版社，2009：51–60.(CHEN Yumin，LIU Hanlong. Fundamentals of FLAC/FLAC3D with engineering example[M]. Beijing：China Water Power Press，2009：51–60.(in Chinese)) [7] 张书伟，林杭，任连伟. FLAC3D在岩土工程中的应用[M]. 北京：中国水利水电出版社，2011：83–107.(ZHANG Shuwei，LIN Hang，REN Lianwei. The Application of FLAC3D to geotechnical engineering[M]. Beijing：China Water Power Press，2011：83–107.(in Chinese)) [8] 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)：2 123–2 127.(CHEN Yumin，LIU Hanlong. Development and implementation of Duncan-Chang constitutive model in FLAC3D[J]. Rock and Soil Mechanics，2007，28(10)：2 123– 2 127.(in Chinese)) [9] 蓝航，姚建国，张华兴，等. 基于FLAC3D的节理岩体采动损伤本构模型的开发及应用[J]. 岩石力学与工程学报，2008，27(3)：572–579.(LAN Hang，YAO Jianguo，ZHANG Huaxing，et at. Development and application of constitutive model of jointed rock mass damage due to mining based on FLAC3D[J]. Chinese Journal of Rock Mechanics and Engineering，2008，27(3)：572–579.(in Chinese)) [10] 李英杰，张顶立，刘保国. 考虑变形模量劣化的应变软化模型在FLAC3D中的开发与验证[J]. 岩土力学，2011，32(增2)：647–653.(LI Yingjie，ZHANG Dingli，LIU Baoguo. Development and verification of strain-softening model considering deformation modulus degradation in FLAC3D[J]. Rock and Soil Mechanics，2011，32(Supp.2)：647–653.(in Chinese)) [11] KONDNER R L. Hyperbolic stress-strain response：cohesive soils[J]. Journal of the Soil Mechanics and Foundations Division，1963，89(1)：115–143. [12] DUNCAN J M，CHANG C Y. Nonlinear analysis of stress and strain in soils[J]. Journal of the Soil Mechanics and Foundations Division，ASCE，1970，96(5)：1629–1653. [13] SCHANZ T，VERMEER P A，BONNIER P G. The hardening soil model：formulation and verification[C]// Beyond 2000 in Computation Geotechnics-10 Years of PLAXIS. Balkema：ISBN90 5809 040X，1999：281–296 [14] 刘波，韩彦辉. FLAC原理、实例与工程应用[M]. 北京：人民交通出版社，2005：7–14.(LIU Bo，HAN Yanhui. The theory，examples and engineering application for FLAC[M]. Beijing：China Communications Press，2005：7–14.(in Chinese)) [15] 张传庆，周辉，冯夏庭. 统一弹塑性本构模型在FLAC3D中的计算格式[J]. 岩土力学，2008，29(3)：596–602.(ZHANG Chuanqing，ZHOU Hui，FENG Xiating. Numerical format of elastoplastic constitutive model based on the unified strength theory in FLAC3D[J]. Rock and Soil Mechanics，2008，29(3)：596–602.(in Chinese))