|
|
|
| GLOBAL STABILITY ANALYTICAL METHOD OF CAVERN GROUP IN SALT ROCK BASED ON ENERGY CRITERION |
| YANG Qiang，DENG Jianqiang，LU Qingchao，LIU Yaoru |
| (State Key Laboratory of Hydroscience and Engineering，Tsinghua University，Beijing 100084，China) |
|
|
|
|
Abstract In order to assess the global stability of underground cavern group for energy reserves，deformation stability theory which considers the strength reduction approach of finite element method is developed. The global stability criterion of cavern group is established based on the K-?E relation，where K is the strength reduction factor and ?E is the plastic complementary energy norm. The plastic complementary energy norm is the norm of unbalanced force，whose magnitude indicates the global stability of cavern group. The unbalanced forces clearly exhibit the position and pattern of the unstable failure. The global stabilities and unstable failure evolution laws of the single cavern，double cavern，multi-cavern and Jintan oil-gas storage cavern group in salt deposit are studied. Multiple influencing factors such as cavern diameter，cavern spacing，weak intercalation，internal pressure，pressure loss and cavern layout are considered. As a result，the maximum cavern diameter，the minimum cavern spacing，the minimum stable internal pressure and the optimal layout mode of cavern group are determined. The results show that the deformation stability theory provides practical and effective theory and method for the global stability assessment and unstable failure analysis of cavern group.
|
|
Received: 02 December 2010
|
|
|
|
| [1] 杨春和，李银平，陈 锋. 层状盐岩力学理论与工程[M]. 北京：科学出版社，2009：1–6.(YANG Chunhe，LI Yinping，CHEN Feng. Mechanics theory and engineering of layered salt rock[M]. Beijing：Science Press，2009：1–6.(in Chinese))
[2] 杨春和，梁卫国，魏东吼，等. 中国盐岩能源地下储存可行性研究[J]. 岩石力学与工程学报，2005，24(24)：4 409–4 417.(YANG Chunhe，LIANG Weiguo，WEI Donghou，et al. Investigation on possibility of energy storage in salt rock in China[J]. Chinese Journal of Rock Mechanics and Engineering，2005，24(24)：4 409–4 417.(in Chinese))
[3] 杨春和，李银平，屈丹安，等. 层状盐岩力学特性研究进展[J]. 力学进展，2008，38(4)：484–494.(YANG Chunhe，LI Yinping，QU Dan?an，et al. Advances in researches of the mechanical behaviors of bedded salt rocks[J]. Advances in Mechanics，2008，38(4)：484–494. (in Chinese))
[4] 杨 强，刘耀儒，冷旷代，等. 能源储备地下库群稳定性与连锁破坏分析[J]. 岩土力学，2009，30(12)：3 553–3 560.(YANG Qiang，LIU Yaoru，LENG Kuangdai，et al. Stability and chain destruction analysis of underground energy storage cluster based on deformation reinforcement theory[J]. Rock and Soil Mechanics，2009，30(12)：3 553–3 560.(in Chinese))
[5] 郑颖人，赵尚毅，孔位学，等. 极限分析有限元法讲座—I岩土工程极限分析有限元法[J]. 岩土力学，2005，26(1)：163–168. (ZHENG Yingren，ZHAO Shangyi，KONG Weixue，et al. Geotechnical engineering limit analysis using finite element method[J]. Rock and Soil Mechanics，2005，26(1)：163–168.(in Chinese))
[6] 赵尚毅，郑颖人，张玉芳. 极限分析有限元法讲座—II有限元强度折减法中边坡失稳的判据探讨[J]. 岩土力学，2005，26(2)：332–336.(ZHAO Shangyi，ZHENG Yingren，ZHANG Yufang. Study on slope failure criterion in strength reduction finite element method[J]. Rock and Soil Mechanics，2005，26(2)：332–336.(in Chinese))
[7] 郑颖人，赵尚毅，邓楚键，等. 有限元极限分析法发展及其在岩土工程中的应用[J]. 中国工程科学，2006，8(12)：39–61.(ZHENG Yingren，ZHAO Shangyi，DENG Chujian，et al. Development of finite element limit analysis method and its applications in geotechnical engineering[J]. Engineering Science，2006，8(12)：39–61.(in Chinese))
[8] 郑颖人，赵尚毅. 岩土工程极限分析有限元法及其应用[J]. 土木工程学报，2005，38(1)：91–104.(ZHENG Yingren，ZHAO Shangyi. Limit state finite element method for geotechnical engineering analysis and its applications[J]. China Civil Engineering Journal，2005，38(1)：91–104.(in Chinese))
[9] 杨 强，刘耀儒，陈英儒，等. 变形加固理论及高拱坝整体稳定与加固分析[J]. 岩石力学与工程学报，2008，27(6)：1 121–1 136. (YANG Qiang，LIU Yaoru，CHEN Yingru，et al. Deformation reinforcement theory and global stability and reinforcement of high arch dams[J]. Chinese Journal of Rock Mechanics and Engineering，2008，27(6)：1 121–1 136.(in Chinese))
[10] YANG Q，LIU Y R，CHEN Y R，et al. Stability and reinforcement analyses of high arch dams by considering deformation effects[J]. Journal of Rock Mechanics and Geotechnical Engineering，2010，2(4)：305–313.
[11] 杨 强，周维垣，陈 新. 岩土工程加固分析中的最小余能原理和上限定理[C]// 冯夏庭，黄理兴编. 21世纪的岩土力学与岩土工程. 武汉：[s.n.]，2003：158–166.(YANG Qiang，ZHOU Weiyuan，CHEN Xin. The principle of minimum complementary energy and upper bound theorem in geotechnical reinforcement analysis[C]// FENG Xiating，HUANG Lixing ed. The Geomechanics and Geotechnical Engineering in the 21st Century. Wuhan：[s.n.]，2003：158–166.(in Chinese))
[12] 杨 强，陈 新，周维垣. 三维弹塑性有限元计算中的不平衡力分析[J]. 岩土工程学报，2004，26(3)：323–326.(YANG Qiang，CHEN Xin，ZHOU Weiyuan. On unbalanced forces in 3D elastoplastic FEM analysis[J]. Chinese Journal of Geotechnical Engineering，2004，26(3)：323–326.(in Chinese))
[13] 杨 强，陈 新，周维垣. 岩土工程加固分析的弹塑性力学基础[J]. 岩土力学，2005，26(4)：553–557.(YANG Qiang，CHEN Xin，ZHOU Weiyuan. Elastoplastic basis of geotechnical engineering reinforcement analysis[J]. Rock and Soil Mechanics，2005，26(4)：553–557.(in Chinese))
[14] 杨 强，薛利军，王仁坤，等. 岩体变形加固理论及非平衡态弹塑性力学[J]. 岩石力学与工程学报，2005，24(20)：3 704–3 712. (YANG Qiang，XUE Lijun，WANG Renkun，et al. Reinforcement theory considering deformation mechanism of rock mass and non-equilibrium elasto-plastic mechanics[J]. Chinese Journal of Rock Mechanics and Engineering，2005，24(20)：3 704–3 712.(in Chinese))
[15] 杨 强，杨晓君，陈 新. 基于D-P准则的理想弹塑性本构关系积分研究[J]. 工程力学，2005，22(4)：15–19.(YANG Qiang，YANG Xiaojun，CHEN Xin. On integration algorithms for perfect plasticity based on Drucker-Prager criterion[J]. Engineering Mechanics，2005，22(4)：15–19.(in Chinese)) |
|
|
|
2011, Vol. 30 
