Deformation Law and Disaster Prediction of Tunnel in Creep Landslide
-
摘要: 为向蠕动型滑坡隧道的病害防治提供决策依据,通过调查分析,建立了3类分析隧道变形规律的地质力学模型.在此基础上,提出了隧道变形预测的灰色等维新息模型,并与有限元数值模拟相结合,建立了通过预测隧道变形进而预测滑坡体应力和位移的关联预测模式.经模型试验验证,该预测模式能可靠地预测隧道变形量、滑坡体应力和位移的变化趋势.Abstract: To provide a decision-making basis for the prevention of tunnel disasters in creep landslide, three typical geological mechanics models for tunnel deformation were given.Then an equal-dimensional new-information grey model GM (1,1) for predicting tunnel deformation was presented by investigating and analyzing tunnels in creep landslide.By combining this model with FEM ( finite element method) numerical simulation, a connected prediction mode was proposed.In this mode, stresses and displacement of landslide are predicted after the prediction of tunnel deformation.The results of a geological mechanical model test show that the prediction method can predict not only tunnel deformation independently, but also landslide disasters.
-
Key words:
- creep landslide /
- tunnel deformation /
- disaster /
- prediction model
-
张鲁新,周德培.蠕动滑坡成因及隧道变形机理的分析[J].岩石力学与工程学报,1999,18(2):217-221.ZHANG Luxin,ZHOU Depei.Cause of creep landslide formation and mechanism of deformation of tunnel[J].Chinese Journal of Rock Mechanics and Engineering,1999,18 (2):217-221.[2] 毛坚强,周德培.滑坡-隧道相互作用变形规律的研究[J].西南交通大学学报,2002,37(4):371-376.MAO Jianqian,ZHOU Depei.Deformation analysis for landslide-tunnel interaction[J].Journal of Southwest Jiaotong University,2002,37(4):371-376.[3] 陶志平,周德培.滑坡地段隧道变形机理的模型试验研究[J].工程地质学报,2003,11(3):323-327.TAO Zhiping,ZHOU Depei.Model testing research on deformation mechanism of tunnel in landslide field[J].Journal of Engineering Geology,2003,11 (3):323-327.[4] 陶志平,周德培.滑坡地段隧道变形的地质力学模型及工程防治措施[J].铁道工程学报,2006(1):61-66.TAO Zhiping,ZHOU Depei.The geological mechanics models of tunnel deformation at landslide site and its controlling[J].Journal of Railway Engineering Society,2006(1):61-66.[5] 殷坤龙,晏同珍.滑坡预测及相关模型[J].岩石力学与工程学报,1996,15(1):1-8.YIN Kunlong,YAN Tongzhen.Landslide prediction and relevant models[J].Chinese Journal of Rock Mechanics and Engineering,1996,15(1):1-8.[6] 赵志明.南昆铁路某滑坡变形的灰色预测[J].四川大学学报:工程科学版,2003,35(4):22-24.ZHAO Zhiming.Grey prediction on deformation of the slide slope in Nanning-Kunming railway[J].Journal of Sichuan University:Engineering Science,2003,35 (4):22-24.[7] 唐天国,万星,刘浩吾.高边坡安全监测的改进GM模型预测研究[J].岩石力学与工程学报,2005,24(2):307-312.TANG Tianguo,WAN Xing,LIU Haowu.Improved GM model for safety monitoring of high rock slope[J].Chinese Journal of Rock Mechanics and Engineering,2005,24 (2):307-312.[8] 蒋刚,林鲁生,刘祖德,等.边坡变形的灰色预测模型[J].岩土力学,2000,2l(3):243-246.JIANG Gang,LIN Lusheng,LIU Zude,et al.Prediction grey model for slope displacement[J].Rock and Soil Mechanics,2000,21 (3):243-246.[9] 傅立.灰色系统理论及其应用[M].北京:科学技术文献出版社,1992:78-89.[10] 杨小礼,刘宝琛.根据非线性屈服准则计算隧道粘弹塑性位移[J].有色金属,2001,53(3):52-55.YANG Xiaoli,LIU Baochen.Relation of nonlinear Mohr-Coulomb yield criterion to tunnel displacement in elastoviscoplastic rock[J].Nonferrous Metals,2001,53 (3):52-55.[11] 陈尚发,佘成学,陈胜宏.大岩淌滑坡的弹粘塑性自适应有限元分析[J].岩石力学与工程学报,2002,21(2):169-175.CHEN Shangfa,SHE Chengxue,CHEN Shenghong.Adaptive elasto-visco-plastic finite element analysis of the stability of Dayantang slop[J].Chinese Journal of Rock Mechanics and Engineering,2002,21 (2):169-175.[12] 程谦恭,胡厚田,彭建兵,等.高边坡岩体渐进性破坏粘弹塑性有限元数值模拟[J].工程地质学报,2000,8(1):25-30.CHENG Qiangong,HU Houtian,PENG Jianbing,et al.Visco-elastoplastic finite element simulation of progressive failure of high-steep rock slope[J].Journal of Engineering Geology,2000,8 (1):25-30.
点击查看大图
计量
- 文章访问数: 1663
- HTML全文浏览量: 76
- PDF下载量: 303
- 被引次数: 0