JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE) ›› 2009, Vol. 39 ›› Issue (4): 134-139.

• Articles • Previous Articles     Next Articles

Numerical simulation of rockburst on the drain tunnel in  the Jinping Second Level Hydropower Station

  

  1.   XU Nu-Wen, TANG Chun-An, LIANG Zheng-Shao：Department of Civil and Hydraulic engineering, Dalian University of Technology, Dalian 116024, China;
    ZHOU Ji-Fang,：Ertan Hydropower Development Company, Chengdu 610021, China; TANG Lie-Xian,：Dalian Mechsoft Co., LTD, Dalian 116000, China
  • Received:2009-05-20 Online:2009-08-24 Published:2009-08-24

PDF (PC)

1895

Abstract:

Rock-burst is a very complicated dynamical instability phenomenon. High ground stress and its induced frequent rockbursts are major influences of tunnel instability during the survey and design and construction stages. As an important and casual construction of the Jinping Second Level Hydropower Station on the Yalongjiang River, Sichuan Province, when the drain tunnel was excavated at the depth of 1600m, there frequently occurred plenty of rockbursts, which  restricted the development of construction. Aiming to investigate the relationship between the rock-burst mechanism and high ground stress, and to effectively predict the location of rock-bursts in the drain tunnel, a progressive failure progress numerical analysis code-RFPA was used to analyze the stress, and the fitting curves of the initial stress were obtained corresponding to the site measurement. Meanwhile, on the basis of RFPA simulation, the disturbed zones in the surrounding rock mass induced by stress redistribution resulting from excavation agreed with the  rock-burst fields, which indicated that RFPA can virtually simulate the mechanism of rock-burst. 

Key words: Jinping second level hydropower station, surroundingrock, rockburst, stress distribution, numerical simulation

[1] LIU Qiming, WANG Wenhui, PAN Yingnan, GAO Yaohui, ZHENG Chengcheng, HE Peng. Influence of thickness defects on the stability of the primary support structure and risk assessment [J]. Journal of Shandong University(Engineering Science), 2025, 55(5): 165-178.
[2] Yuxin WANG,Sizhong LÜ,Wang YAO,Chunjin LIN,Ming ZHANG,Zhaofeng LI,Jian ZHANG,Yansheng WANG. Parameter design and effect evaluation of pile side splitting grouting insilty clay stratum [J]. Journal of Shandong University(Engineering Science), 2023, 53(6): 70-81.
[3] Pengning GUO,Wei LIU,Hao YUAN,Shuo FENG,Yangang WANG. Analysis of screw extrusion dehydration efficiency based on micro element discrete model [J]. Journal of Shandong University(Engineering Science), 2023, 53(1): 114-121.
[4] Yiming ZHANG,Yunpeng LI,Jing LI,Junyu CONG. Development of numerical calculation for coupled multi-field problems in cracked/porous media [J]. Journal of Shandong University(Engineering Science), 2022, 52(6): 63-78.
[5] Weiqin ZHENG,Jie XU,Jie SUN,Ke WU. Mechanical characteristics of TBM tunnel segment in composite stratum [J]. Journal of Shandong University(Engineering Science), 2022, 52(4): 210-213.
[6] TIAN Li,Wenzhe BI,Sarim Saleem SIDDIQUI,Kaiyue LIU. Review on structural resistance to downburst wind loads [J]. Journal of Shandong University(Engineering Science), 2021, 51(5): 32-41.
[7] LU Guangzhao, ZHOU Bo, XU Feng, SHANGGUAN Wei, WANG Gang, ZHANG Shubo. Stability analysis and construction mechanics of shallow buried bias tunnel openings [J]. Journal of Shandong University(Engineering Science), 2021, 51(4): 61-70.
[8] WANG Chunguo. Optimization of ventilation system of TBM tunnel construction and evaluation of dust suppression effect [J]. Journal of Shandong University(Engineering Science), 2021, 51(3): 52-60.
[9] Chunguo WANG. Study on full face hard rock tunnel boring machine through the overpass in composite stratum [J]. Journal of Shandong University(Engineering Science), 2021, 51(3): 45-51.
[10] SUN Jie, WU Ke, ZHENG Yang, LI Shuchen, YUAN Chao, WANG Xiuwei. Influence of TBM tunnel excavation at different positions on buildings [J]. Journal of Shandong University(Engineering Science), 2021, 51(1): 32-38.
[11] SU Sibo, WANG Guoqing, JIA Xianzhuo, LI Zhicong, HUANG Zhigang. Influence of shear span ratio on seismic performance of hollow pipe pier with slot connection [J]. Journal of Shandong University(Engineering Science), 2021, 51(1): 39-45.
[12] XU Zaigen, LIU Zhengwei, LIU Wenpeng, ZHOU Mengyao, LIU Juncai, TIAN Li. Calculation method of the single-double angle joints in transmission towers [J]. Journal of Shandong University(Engineering Science), 2021, 51(1): 87-93.
[13] LIN Chao, ZHANG Chenglin, WANG Yong. Design and mechanical properties of prestressed hollow bar [J]. Journal of Shandong University(Engineering Science), 2020, 50(5): 26-32.
[14] CHEN Yucheng, WANG Zhaoyang, GUO Ming, LIN Peng. Influence of concealed karst cave on surrounding rock stability and its treatment technology [J]. Journal of Shandong University(Engineering Science), 2020, 50(5): 33-43.
[15] Jinsheng QI, Hongzhen CAO, Yan SHI, Wenjing DU, Zhan WANG. Optimization of the inner deflector of the shrimp-waist elbow [J]. Journal of Shandong University(Engineering Science), 2020, 50(5): 64-69.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
[1] LI Kan . Empolder and implement of the embedded weld control system[J]. JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE), 2008, 38(4): 37 -41 .
[2] LAI Xiang . The global domain of attraction for a kind of MKdV equations[J]. JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE), 2006, 36(1): 87 -92 .
[3] YU Jia yuan1, TIAN Jin ting1, ZHU Qiang zhong2. Computational intelligence and its application in psychology[J]. JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE), 2009, 39(1): 1 -5 .
[4] CHEN Rui, LI Hongwei, TIAN Jing. The relationship between the number of magnetic poles and the bearing capacity of radial magnetic bearing[J]. JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE), 2018, 48(2): 81 -85 .
[5] WANG Bo,WANG Ning-sheng . Automatic generation and combinatory optimization of disassembly sequence for mechanical-electric assembly[J]. JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE), 2006, 36(2): 52 -57 .
[6] ZHANG Ying,LANG Yongmei,ZHAO Yuxiao,ZHANG Jianda,QIAO Peng,LI Shanping . Research on technique of aerobic granular sludge cultivationby seeding EGSB anaerobic granular sludge[J]. JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE), 2006, 36(4): 56 -59 .
[7] Yue Khing Toh1， XIAO Wendong2， XIE Lihua1. Wireless sensor network for distributed target tracking: practices via real test bed development[J]. JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE), 2009, 39(1): 50 -56 .
[8] SUN Weiwei， WANG Yuzhen. Finite gain stabilization of singlemachine infinite bus system subject to saturation[J]. JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE), 2009, 39(1): 69 -76 .
[9] SUN Yu-li,LI De-fa,ZUO Dun-wen,QI mei . [J]. JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE), 2006, 36(6): 19 -23 .
[10] WANG Yong, XIE Yudong. Gas control technology of largeflow pipe[J]. JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE), 2009, 39(2): 70 -74 .
Copyright 2018 © Editorial office of Journal of Shandong University (Engineering Science)
Supported by Beijing Magtech Co.Ltd