Time series finite element analysis of support of slope excavation

YAN Qiang; LIAN Xiang-dong; LING Jian-ming

doi:10.19818/j.cnki.1671-1637.2020.03.005

Volume 20 Issue 3

Turn off MathJax

Article Contents

Article Navigation > Journal of Traffic and Transportation Engineering > 2020 > 20(3): 61-71

YAN Qiang, LIAN Xiang-dong, LING Jian-ming. Time series finite element analysis of support of slope excavation[J]. Journal of Traffic and Transportation Engineering, 2020, 20(3): 61-71. doi: 10.19818/j.cnki.1671-1637.2020.03.005

Citation:

YAN Qiang, LIAN Xiang-dong, LING Jian-ming. Time series finite element analysis of support of slope excavation[J]. Journal of Traffic and Transportation Engineering, 2020, 20(3): 61-71. doi: 10.19818/j.cnki.1671-1637.2020.03.005

Citation:

PDF( 2082 KB)

Time series finite element analysis of support of slope excavation

doi: 10.19818/j.cnki.1671-1637.2020.03.005

1.
Guangxi Communications Investment Group Corporation Ltd., Nanning 530021, Guangxi, China
2.
School of Transportation Engineering, Tongji University, Shanghai 201804, China

Funds:

National Natural Science Foundation of China 51878075

China Postdoctoral Science Foundation 2019M663872XB

More Information

Author Bio:
YAN Qiang(1982-), male, senior engineer, PhD, yyqq023@163.com
Received Date: 2020-01-07
Publish Date: 2020-06-25

Abstract

Abstract

In order to study the influence factors of slope stability of highway reconstruction and expansion project and to seek scientific support methods, the Liuzhou to Nanning Expressway K1456+800 left-hand reconstruction expansion slope was selected as the research subject, the finite element numerical model was built by using ANSYS, and two support methods were selected as the late support and timely support. The shear strain increment, horizontal and vertical displacement increments of the slope body during the excavation of 6-grade slope in the reconstruction and expansion project were simulated. For the quantitative analysis of the trend of displacement and stress during the excavation of slope under two support conditions, 6 special nodes were selected for the monitoring. The main monitoring contents include the displacement of measuring point(including the horizontal displacement and vertical displacement), and the change of principal stress(including the maximum principal stress and the minimum principal stress) with the excavation step. Analysis result shows that whether or not it is supported in time, the maximum shear strain at each step is at the foot of slope, however, the distribution area and shear strain increments of timely support are smaller than those of late support, and the probability of slope failure is low. With the excavation, the horizontal displacement increment decreases first and then increases slightly, the vertical displacement increment increases sharply first and then decreases slowly, and the final displacement of each measuring point under the timely support is smaller than the value under the late support. When it isn't supported in time, the safety factor is close to 1.0 finally. In case of timely support, the safety factor increases greatly at each step, basically greater than 1.35. As mentioned above, the timely support can reduce the shear strain of slope, limit the horizontal and vertical displacements, reduce the overall stress level, improve the safety factor, and significantly improve the stability of slope.
- highway slop,
- reconstruction and expansion,
- excavation,
- support,
- displacement,
- stress,
- safety factor

FullText(HTML)

References(33)

References

[1]	张坤勇, 杜伟, 王乾坤. 基于修正关口-太田模型的归一化变形量开挖边坡失稳判据[J]. 土木工程学报, 2019, 52(11): 86-96. https://www.cnki.com.cn/Article/CJFDTOTAL-TMGC201911010.htm ZHANG Shen-yong, DU Wei, WANG Qian-kun. Criterion of normalized deformation for instability analysis of excavation slope based on modified Ohta-Sechiguchi anisotropic elastoplastic model[J]. China Civil Engineering Journal, 2019, 52(11): 86-96. (in Chinese). https://www.cnki.com.cn/Article/CJFDTOTAL-TMGC201911010.htm
[2]	刘广宁, 李聪, 卢波, 等. 降雨诱发全-强风化岩边坡浅层失稳模型试验研究[J]. 长江科学院院报, http://kns.cnki.net/kcms/detail/42.1171.TV.20191104.1013.002.html. LIU Guang-ning, LI Cong, LU Bo, et al. Model test of shallow failure of fully strong weathered rock slope induced by rainfall[J]. Journal of Yangtze River Scientific Research Institute, http://kns.cnki.net/kcms/detail/42.1171.TV.20191104.1013.002.html. (inChinese).
[3]	金磊, 曾亚武, 程涛, 等. 土石混合体边坡稳定性的三维颗粒离散元分析[J]. 哈尔滨工业大学学报, 2020, 52(2): 41-50. https://www.cnki.com.cn/Article/CJFDTOTAL-HEBX202002006.htm JIN Lei, ZENG Ya-wu, CHENG Tao, et al. Stability analysis of soil-rock mixture slope based on 3-D DEM[J]. Journal of Harbin Institute of Technology, 2020, 52(2): 41-50. (in Chinese). https://www.cnki.com.cn/Article/CJFDTOTAL-HEBX202002006.htm
[4]	蒋水华, 刘贤, 黄发明, 等. 考虑多参数空间变异性的降雨入渗边坡失稳机理及可靠度分析[J]. 岩土工程学报, http://kns.cnki.net/kcms/detail/32.1124.TU.20191115.1133.002.html. JIANG Shui-hua, LIU Xian, HUANG Fa-ming, et al. Failure mechanism and reliability analyses of soil slopes under rainfall infiltration considering spatial variability of multiple soil parameters[J]. Chinese Journal of Geotechnical Engineering, http://kns.cnki.net/kcms/detail/32.1124.TU.20191115.1133.002.html. (inChinese).
[5]	闫强. 高速公路改扩建工程高边坡开挖过程稳定性研究[D]. 西安: 长安大学, 2015. YAN Qiang. Study on the slope stability in the excavation process of reconstruction highway[D]. Xi'an: Chang'an University, 2015. (in Chinese).
[6]	殷德胜, 汪卫明, 陈胜宏. 岩质边坡开挖过程模拟的动态有限单元法[J]. 岩石力学与工程学报, 2011, 30(11): 2217-2224. https://www.cnki.com.cn/Article/CJFDTOTAL-YSLX201111008.htm YIN De-sheng, WANG Wei-ming, CHEN Sheng-hong. Dynamic finite element method for excavation process simulation of rock slope[J]. Chinese Journal of Rock Mechanics and Engineering, 2011, 30(11): 2217-2224. (in Chinese). https://www.cnki.com.cn/Article/CJFDTOTAL-YSLX201111008.htm
[7]	段钊, 唐皓, 党琪, 等. 边坡开挖诱发滑坡离散元模拟[J]. 长安大学学报(自然科学版), 2014, 34(5): 49-55. doi: 10.3969/j.issn.1671-8879.2014.05.008 DUAN Zhao, TANG Hao, DANG Qi, et al. Discrete element simulation of landslide induced by slope excavation[J]. Journal of Chang'an University (Natural Science Edition), 2014, 34(5): 49-55. (in Chinese). doi: 10.3969/j.issn.1671-8879.2014.05.008
[8]	林同立, 何忠明, 蔡军. 改扩建高速公路路堑边坡拓宽方案对比分析[J]. 矿冶工程, 2014, 34(6): 18-21. doi: 10.3969/j.issn.0253-6099.2014.06.005 LIN Tong-li, HE Zhong-ming, CAI Jun. Analysis and comparison of embankment widening schemes in highway renovation and expansion project[J]. Mining and Metallurgical Engineering, 2014, 34(6): 18-21. (in Chines). doi: 10.3969/j.issn.0253-6099.2014.06.005
[9]	王述红, 饶文杰, 关祥祥, 等. 复杂岩体边坡关键块体搜索及开挖支护[J]. 东北大学学报(自然科学版), 2013, 34(7): 1017-1021. doi: 10.3969/j.issn.1005-3026.2013.07.024 WANG Shu-hong, RAO Wen-jie, GUAN Xiang-xiang, et al. Search of key block in complex rock mass slope and support of excavated slope[J]. Journal of Northeastern University (Natural Science), 2013, 34(7): 1017-1021. (in Chinese). doi: 10.3969/j.issn.1005-3026.2013.07.024
[10]	周勇, 王旭日, 朱彦鹏, 等. 强风化软硬互层岩质高边坡监测与数值模拟[J]. 岩土力学, 2018, 39(6): 2249-2258. https://www.cnki.com.cn/Article/CJFDTOTAL-YTLX201806041.htm ZHOU Yong, WANG Xu-ri, ZHU Yan-peng, et al. Monitoring and numerical simulation of an interbedding high slope composed of soft and hard strong-weathered rock[J]. Rock and Soil Mechanics, 2018, 39(6): 2249-2258. (in Chinese). https://www.cnki.com.cn/Article/CJFDTOTAL-YTLX201806041.htm
[11]	张媛, 董建华, 董旭光, 等. 季节性冻土区土钉边坡支护结构冻融反应分析[J]. 岩土力学, 2017, 38(2): 574-582, 592. https://www.cnki.com.cn/Article/CJFDTOTAL-YTLX201702035.htm ZHANG Yuan, DONG Jian-hua, DONG Xu-guang, et al. Analysis of freezing and thawing of slope improved by soil nailing structure in seasonal frozen soil region[J]. Rock and Soil Mechanics, 2017, 38(2): 574-582, 592. (in Chinese). https://www.cnki.com.cn/Article/CJFDTOTAL-YTLX201702035.htm
[12]	王定伟, 伍法权, 马艾阳. 腊寨水电站坝址右岸边坡三维数值模拟分析[J]. 工程地质学报, 2013, 21(4): 641-648. doi: 10.3969/j.issn.1004-9665.2013.04.023 WANG Ding-wei, WU Fa-quan, MA Ai-yang. Three dimensional numerical simulation for right bank slope of Lazhai Hydropower Station[J]. Journal of Engineering Geology, 2013, 21(4): 641-648. (in Chinese). doi: 10.3969/j.issn.1004-9665.2013.04.023
[13]	赵晓彦, 胡厚田, 唐茂颖. 类土质高边坡开挖效应的离心模型试验及数值模拟研究[J]. 岩石力学与工程学报, 2006, 25(增2): 4046-4051. https://www.cnki.com.cn/Article/CJFDTOTAL-YSLX2006S2110.htm ZHAO Xiao-yan, HU Hou-tian, TANG Mao-ying. Study on excavation effect of high soil-like slope by centrifugal model test and numerical simulation[J]. Chinese Journal of Rock Mechanics and Engineering, 2006, 25(S2): 4046-4051. (in Chinese). https://www.cnki.com.cn/Article/CJFDTOTAL-YSLX2006S2110.htm
[14]	赵川, 付成华, 何欢, 等. 锦屏水电站缆机平台高陡边坡开挖支护数值模拟[J]. 长江科学院院报, 2015, 32(8): 94-98. https://www.cnki.com.cn/Article/CJFDTOTAL-CJKB201508022.htm ZHAO Chuan, FU Cheng-hua, HE Huan, et al. Numerical simulation on the excavation and support of high and steep slope of cable-crane platform of Jinping Hydropower Station[J]. Journal of Yangtze River Scientific Research Institute, 2015, 32(8): 94-98. (in Chinese). https://www.cnki.com.cn/Article/CJFDTOTAL-CJKB201508022.htm
[15]	李安兴, 李杨秋, 王燕增, 等. 改建工程深基坑对地铁车站及区间隧道的影响分析[J]. 土木工程, 2019, 8(3): 821-829. LI An-xing, LI Yang-qiu, WANG Yan-zeng, et al. Effect of filling and grouting reinforcement on deep foundation pit support structure and adjacent tunnels[J]. Hans Journal of Civil Engineering, 2019, 8(3): 821-829. (in Chinese).
[16]	姚裕春, 姚令侃, 袁碧玉. 降雨条件下边坡破坏机理离心模型研究[J]. 中国铁道科学, 2004, 25(4): 64-68. doi: 10.3321/j.issn:1001-4632.2004.04.012 YAO Yu-chun, YAO Ling-kan, YUAN Bi-yu. Analysis of a centrifugal model of slope damage mechanism during rainfall[J]. China Railway Science, 2004, 25(4): 64-68. (in Chinese). doi: 10.3321/j.issn:1001-4632.2004.04.012
[17]	姚裕春, 姚令侃, 袁碧玉, 等. 施工时序对边坡稳定性影响的离心模型试验及数值分析[J]. 岩石力学与工程学报, 2006, 25(5): 1075-1080. doi: 10.3321/j.issn:1000-6915.2006.05.034 YAO Yu-chun, YAO Ling-kan, YUAN Bi-yu, et al. Centrifuge model test and numerical analysis of effects of excavation and support sequence on slope stability[J]. Chinese Journal of Rock Mechanics and Engineering, 2006, 25(5): 1075-1080. (in Chinese). doi: 10.3321/j.issn:1000-6915.2006.05.034
[18]	姚裕春, 姚令侃, 袁碧玉. 边坡开挖迁移式影响离心模型试验研究[J]. 岩土工程学报, 2006, 28(1): 76-80. doi: 10.3321/j.issn:1000-4548.2006.01.015 YAO Yu-chun, YAO Ling-kan, YUAN Bi-yu. Study of centrifuge model tests on transition effect of cut slopes[J]. Chinese Journal of Geotechnical Engineering, 2006, 28(1): 76-80. (in Chinese). doi: 10.3321/j.issn:1000-4548.2006.01.015
[19]	赵朋辉, 刁文治, 周志林. 开挖与支护方法对边坡稳定性影响的数值模拟[J]. 路基工程, 2006(4): 16-18. doi: 10.3969/j.issn.1003-8825.2006.04.006 ZHAO Peng-hui, DIAO Wen-zhi, ZHOU Zhi-lin. Numerical simulation of the influence of excavation and support methods on slope stability[J]. Subgrade Engineering, 2006(4): 16-18. (in Chinese). doi: 10.3969/j.issn.1003-8825.2006.04.006
[20]	赵尚毅, 郑颖人, 唐树名. 路堑边坡施工顺序对边坡稳定性影响数值模拟分析[J]. 地下空间, 2003, 23(4): 370-374. doi: 10.3969/j.issn.1673-0836.2003.04.006 ZHAO Shang-yi, ZHENG Ying-ren, TANG Shu-ming. Numerical simulation analysis for the influence of construction process of deep cut slop on its stability[J]. Underground Space, 2003, 23(4): 370-374. (in Chinese). doi: 10.3969/j.issn.1673-0836.2003.04.006
[21]	朱彦鹏, 王立文. 边坡分级柔性支护数值模拟研究[J]. 建筑科学与工程学报, 2012, 29(4): 25-31. doi: 10.3969/j.issn.1673-2049.2012.04.005 ZHU Yan-peng, WANG Li-wen. Research on numerical simulation of slope grading flexible reinforcement[J]. Journal of Architecture and Civil Engineering, 2012, 29(4): 25-31. (in Chinese). doi: 10.3969/j.issn.1673-2049.2012.04.005
[22]	杨逾, 郭锐. 多台阶岩质边坡的稳定性分析及加固效应[J]. 辽宁工程技术大学学报(自然科学版), 2016, 35(6): 607-612. https://www.cnki.com.cn/Article/CJFDTOTAL-FXKY201606010.htm YANG Yu, GUO Rui. Research on the stability of multi-level rock slope and the reinforcement effect[J]. Journal of Liaoning Technical University (Natural Science Edition), 2016, 35(6): 607-612. (in Chinese). https://www.cnki.com.cn/Article/CJFDTOTAL-FXKY201606010.htm
[23]	李韬, 徐奴文, 戴峰, 等. 白鹤滩水电站左岸坝肩开挖边坡稳定性分析[J]. 岩土力学, 2018, 39(2): 665-674. https://www.cnki.com.cn/Article/CJFDTOTAL-YTLX201802034.htm LI Tao, XU Nu-wen, DAI Feng, et al. Stability analysis of left bank abutment slope at Baihetan Hydropower Station subjected to excavation[J]. Rock and Soil Mechanics, 2018, 39(2): 665-674. (in Chinese). https://www.cnki.com.cn/Article/CJFDTOTAL-YTLX201802034.htm
[24]	马国民, 李国锋, 杨磊, 等. 富龙石质高陡边坡下棚洞适用性及联合支护效果分析[J]. 中国公路学报, 2016, 29(9): 112-120. doi: 10.3969/j.issn.1001-7372.2016.09.015 MA Guo-min, LI Guo-feng, YANG Lei, et al. Analysis on applicability of shed-tunnel and effect of combined supporting under high and steep rocky slope condition of Funing-Longliu Expressway[J]. China Journal of Highway and Transport, 2016, 29(9): 112-120. (in Chinese). doi: 10.3969/j.issn.1001-7372.2016.09.015
[25]	刘军, 徐志军, 原方, 等. 立交桥桥台桩基托换基坑支护设计与监测[J]. 岩土工程学报, 2019, 41(增2): 217-220, 225. https://www.cnki.com.cn/Article/CJFDTOTAL-YTGC2019S2056.htm LIU Jun, XU Zhi-jun, YUAN Fang, et al. Design and monitoring of foundation pit support project for pile foundation underpinning of abutment of interchange bridges[J]. Chinese Journal of Geotechnical Engineering, 2019, 41(S2): 217-220, 225. (in Chinese). https://www.cnki.com.cn/Article/CJFDTOTAL-YTGC2019S2056.htm
[26]	陈乐求, 杨恒山, 林杭. 抗滑桩加固边坡稳定性及影响因素的有限元分析[J]. 中南大学学报(自然科学版), 2011, 42(2): 490-494. https://www.cnki.com.cn/Article/CJFDTOTAL-ZNGD201102035.htm CHEN Le-qiu, YANG Heng-shan, LIN Hang. Finite element analysis for slope stability and its influencing factors with pile reinforcement[J]. Journal of Central South University (Science and Technology), 2011, 42(2): 490-494. (in Chinese). https://www.cnki.com.cn/Article/CJFDTOTAL-ZNGD201102035.htm
[27]	高春君, 张学富, 向立辉, 等. 深层排水孔堵塞对富水岩质高边坡稳定性的影响[J]. 土木建筑与环境工程, 2018, 40(5): 92-101. https://www.cnki.com.cn/Article/CJFDTOTAL-JIAN201805012.htm GAO Chun-jun, ZHANG Xue-fu, XIANG Li-hui, et al. Impact of deep drainage hole blockage on high slope stability in rich water formation[J]. Journal of Civil, Architectural and Environmental Engineering, 2018, 40(5): 92-101. (in Chinese). https://www.cnki.com.cn/Article/CJFDTOTAL-JIAN201805012.htm
[28]	WEI Zuo-an, YIN Guang-zhi, WANG J G, et al. Stability analysis and supporting system design of a high-steep cut soil slope on an ancient landslide during highway construction of Tehran-Chalus[J]. Environmental Earth Sciences, 2012, 67(6): 1651-1662. doi: 10.1007/s12665-012-1606-2
[29]	KAYA A, ALEMDAG S, DAG S, et al. Stability assessment of high-steep cut slope debris on a landslide (Gumushane, NE Turkey)[J]. Bulletin of Engineering Geology and the Environment, 2016, 75(1): 89-99. doi: 10.1007/s10064-015-0753-6
[30]	MEYER N, AHANGARI K. An investigation on stability and support of intake rock slopes of the Karun III Dam and power project[C]//KONIETZKY H. Numerical Modeling of Discrete Materials in Geotechnical Engineering, Civil Engineering, and Earth Sciences. New York: CRC Press, 2004: 229-234.
[31]	丁秀美, 刘光士, 黄润秋, 等. 剪应变增量在堆积体边坡稳定性研究中的应用[J]. 地球科学进展, 2004, 19(增): 318-323. https://www.cnki.com.cn/Article/CJFDTOTAL-DXJZ2004S1064.htm DING Xiu-mei, LIU Guang-shi, HUANG Run-qiu, et al. Shear strain increment applying in stability studying of debris slope[J]. Advance in Earth Sciences, 2004, 19(S): 318-323. (in Chinese). https://www.cnki.com.cn/Article/CJFDTOTAL-DXJZ2004S1064.htm
[32]	张伟. 边坡位移参数与稳定性变化关系[J]. 新疆交通运输科技, 2016(2): 15-19. ZHANG Wei. Relationship between slope displacement parameters and stability change[J]. Xinjiang Transportation Science and Technology, 2016(2): 15-19. (in Chinese).
[33]	饶运章, 张学焱, 利坚, 等. 边坡安全系数与滑坡概率关系分析[J]. 长江科学院院报, 2017, 34(5): 63-67. https://www.cnki.com.cn/Article/CJFDTOTAL-CJKB201705015.htm RAO Yun-zhang, ZHANG Xue-yan, LI Jian, et al. Relationship between slope safety factor and landslide probability[J]. Journal of Yangtze River Scientific Research Institute, 2017, 34(5): 63-67. (in Chinese). https://www.cnki.com.cn/Article/CJFDTOTAL-CJKB201705015.htm

Relative Articles

Supplements(0)

Cited By

Proportional views

Proportional views

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Get Citation

PDF

XML

Article Metrics

Article views (952) PDF downloads(724)

Time series finite element analysis of support of slope excavation

doi: 10.19818/j.cnki.1671-1637.2020.03.005

Abstract

References

Proportional views

Catalog

通讯作者: 陈斌, bchen63@163.com

Article Metrics

Proportional views

Related

Time series finite element analysis of support of slope excavation

doi: 10.19818/j.cnki.1671-1637.2020.03.005

Abstract

References

Proportional views

Catalog

通讯作者: 陈斌, bchen63@163.com

Article Metrics

Proportional views

Related

Export File

Citation

Format

Content