›› 2012, Vol. 33 ›› Issue (3): 799-804.

• Geotechnical Engineering • Previous Articles     Next Articles

Application of radial basis function neural network to geostress field back analysis

ZHANG Le-wen1, ZHANG De-yong2, QIU Dao-hong1   

  1. 1. Geotechnical and Structural Engineering Research Center, Shandong University, Jinan 250061, China; 2. China Petroleum Engineering & Construction Corporation, Qingdao, Shandong 266071, China
  • Received:2010-09-26 Online:2012-03-10 Published:2012-03-12

PDF (Chinese)

739

Abstract: Initial geostress field is a basic index for underground engineering design. According to geological data of Jiangbian hydropower station diversion tunnel area, a numerical model of this area is established by fast Lagrangian analysis of continua in three dimensions (FLAC3D). The mixed boundary conditions and lateral pressure coefficients which change with depth are applied to simulate different kinds of rocks, fault fracture zone and alteration zone along the diversion tunnel, so as to conduct positive analysis. According to the measured principal stress data of the engineering site, based on the principle of radial basis function (RBF) neural network, back analyses of rock mechanical parameters and initial stress field are made. The calculated results are consistent well with the measured results and meet accuracy requirements. The results show that the back analysis results are in line with the actual project; and back analysis method is reasonable.

Key words: RBF neural network, FLAC3D, rock mechanical parameters, boundary condition, back analysis of geostress field

CLC Number: 

  • TU 443
[1] YANG Wen-bo, ZOU Tao, TU Jiu-lin, GU Xiao-xu, LIU Yu-chen, YAN Qi-xiang, HE Chuan. Analysis of dynamic response of horseshoe cross-section tunnel under vibrating load induced by high-speed train [J]. Rock and Soil Mechanics, 2019, 40(9): 3635-3644.
[2] ZHAO Mi, OUYANG Wen-long, HUANG Jing-qi, DU Xiu-li, ZHAO Xu, . Analysis of axis dynamic response of rock tunnels through fault fracture zone under P waves of earthquake [J]. Rock and Soil Mechanics, 2019, 40(9): 3645-3655.
[3] MU Rui, PU Shao-yun, HUANG Zhi-hong, LI Yong-hui, ZHENG Pei-xin, LIU Yang, LIU Ze, ZHENG Hong-chao, . Determination of ultimate bearing capacity of uplift piles in combined soil and rock masses [J]. Rock and Soil Mechanics, 2019, 40(7): 2825-2837.
[4] ZOU You-xue, WANG Rui, ZHANG Jian-mi, . Analysis on the seismic response of stone columns composite foundation in liquefiable soils [J]. Rock and Soil Mechanics, 2019, 40(6): 2443-2455.
[5] JIANG Zhong-ming, LIU Li-yuan, ZHAO Hai-bin, TANG Dong, HU Wei, MEI Song-hua, LI Peng, . Study of dynamic boundary conditions for thermo-mechanical coupling analysis of underground gas storage cavern [J]. Rock and Soil Mechanics, 2019, 40(3): 1149-1157.
[6] HUANG Biao, LI Ming-guang, HOU Yong-mao, CHEN Jin-jian, . Effect of auto-compensating steel struts on stress and deformation behaviors of supporting structures [J]. Rock and Soil Mechanics, 2018, 39(S2): 359-365.
[7] YANG Xiu-rong, JIANG An-nan, JIANG Zong-bin. Creep test and damage model of soft rock under water containing condition [J]. , 2018, 39(S1): 167-174.
[8] LIU Jian, ZHAO Guo-yan, LIANG Wei-zhang, WU Hao, PENG FU-hua,. Numerical simulation of uniaxial compressive strength and failure characteristics in nonuniform rock materials [J]. , 2018, 39(S1): 505-512.
[9] WANG Qing-wu, JU Neng-pan, DU Ling-li, HUANG Jian, HU Yong,. Three dimensional inverse analysis of geostress field in the Sangri–Jiacha section of Lasa–Linzhi railway [J]. , 2018, 39(4): 1450-1462.
[10] LIU Fei-yue, YANG Tian-hong, ZHANG Peng-hai1, ZHOU Jing-ren, DENG Wen-xue, HOU Xian-gang, ZHAO Yong-chuan, . Dynamic inversion of rock fracturing stress field based on acoustic emission [J]. , 2018, 39(4): 1517-1524.
[11] ZOU You-xue, WANG Rui, ZHANG Jian-min, . Implementation of a plasticity model for large post-liquefaction deformation of sand in FLAC3D [J]. , 2018, 39(4): 1525-1534.
[12] LIU Shi-wei, SHENG Qian, ZHU Ze-qi, GONG Yan-feng, CUI Zhen, LI Jian-he, ZHANG Shan-kai，. Research on boundary effect of groundwater seepage in tunnel surrounding rock [J]. , 2018, 39(11): 4001-4009.
[13] JIANG Yi, WEI Siyu, SHANG Yan-jun, GAO Qiang, LI Yan-yan,. Study of mechanical properties of deep mixed ground [J]. , 2017, 38(S2): 266-272.
[14] MA Chun-jing, JIANG An-nan, JIANG Zong-bin, WANG Shan-yong,. Hydro-mechanical coupled simulation and analysis of shield tunnel construction based on the zone state index [J]. , 2017, 38(6): 1762-1770.
[15] DENG Gao-yang, XIAO Ming, CHEN Jun-tao. Simulation of seepage boundary of underground cavern based on variational inequality [J]. , 2017, 38(3): 762-768.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
[1] TAO Gan-qiang, YANG Shi-jiao, REN Feng-yu. Experimental research on granular flow characters of caved ore and rock[J]. , 2009, 30(10): 2950 -2954 .
[2] GONG Wei-li, AN Li-qian, ZHAO Hai-yan, MAO Ling-tao. Multiple scale characterization of CT image for coal rock fractures based on image description[J]. , 2010, 31(2): 371 -376 .
[3] WAN Zhi, DONG Hui, LIU Bao-chen. On choice of hyper-parameters of support vector machines for time series regression and prediction with orthogonal design[J]. , 2010, 31(2): 503 -508 .
[4] SUN Xi-yuan, LUAN Mao-tian, TANG Xiao-wei. Study of horizontal bearing capacity of bucket foundation on saturated soft clay ground[J]. , 2010, 31(2): 667 -672 .
[5] WANG Ming-nian, GUO Jun, LUO Lu-sen, Yu Yu, Yang Jian-min, Tan Zhon. Study of critical buried depth of large cross-section loess tunnel for high speed railway[J]. , 2010, 31(4): 1157 -1162 .
[6] TAN Feng-yi, Jiang Zhi-quan, Li Zhong-qiu, YAN Hui-he. Application of additive mass method to testing compacted density of filling material in Kunming new airport[J]. , 2010, 31(7): 2214 -2218 .
[7] CHAI Bo, YIN Kun-long, XIAO Yong-jun. Characteristics of weak-soft zones of Three Gorges Reservoir shoreline slope in new Badong county[J]. , 2010, 31(8): 2501 -2506 .
[8] YANG Zhao-liang, SUN Guan-hua, ZHENG Hong. Global method for stability analysis of slopes based on Pan’s maximum principle[J]. , 2011, 32(2): 559 -563 .
[9] WANG Guang-jin，YANG Chun-he ，ZHANG Chao，MA Hong-ling，KONG Xiang-yun ，HO. Research on particle size grading and slope stability analysis of super-high dumping site[J]. , 2011, 32(3): 905 -913 .
[10] HU Hai-jun, JIANG Ming-jing, ZHAO Tao, PENG Jian-bing, LI Hong. Effects of specimen-preparing methods on tensile strength of remolded loess[J]. , 2009, 30(S2): 196 -199 .
Copyright © Rock and Soil Mechanics, All Rights Reserved.
Tel: 027-87198484, 87199252, 87199253, 87198752　E-mail: ytlx@whrsm.ac.cn
Powered by Beijing Magtech Co. Ltd