|
|
|
| STUDY OF LAYOUT OPTIMIZATION AND CHAIN DESTRUCTION OF DENSE STORAGE GROUP IN SALT ROCK |
| (State Key Laboratory of Hydroscience and Engineering，Tsinghua University，Beijing 100084，China) |
|
|
|
|
Abstract The stability criterion for underground caverns based on the unbalanced force and the minimum plastic complementary energy is introduced into the software fast Lagrangian analysis of continua in three dimensions (FLAC3D)，and its equivalent form is deduced. The rationality of using the maximum unbalanced force and the plasticity distribution to determine the stability and using the unbalanced force distribution and adjustment process to indicate the destruction location and evolution path of storage group is demonstrated. The layout of dense storage group is optimized from two aspects of the reasonable space between two caverns and the layout pattern，respectively. The results show that distance 1.5 times of cavern diameter is safe and economic between two caverns；and equilateral triangle layout is the optimal plane layout pattern. Two kinds of destruction sources in the storage group are compared. The results show that the influence of sudden pressure loss starting from internal caverns is more significant and cause more serious damage than that from the outlying caverns. The stability of single internal cavern with sudden pressure loss is analyzed by using equilateral triangle layout. Considering the long-term strength reduction of salt rock，the stability of the same model is carried out. The results are applied to the chain destruction analysis later as an indicator of local failure. The chain destruction process is studied by numerical simulation；and the results show that the sudden pressure loss in single cavern doesn′t tend to cause chain destruction of storage group.
|
|
Received: 27 September 2010
|
|
|
|
| [1] 吴 文，侯正猛，杨春和. 盐岩中能源(石油和天然气)地下储存库稳定性评价标准研究[J]. 岩石力学与工程学报，2005，24(14)：2 497–2 505.(WU Wen，HOU Zhengmeng，YANG Chunhe. Investigation of evaluating criteria of stabilities for energy(petroleum and natural gas) storage caverns in rock salt[J]. Chinese Journal of Rock Mechanics and Engineering，2005，24(14)：2 497–2 505.(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] THOMS R L，GEHLE R M. A brief history of salt cavern use[C]// Proceedings of the 8th World Salt Symposium. [S.l.]：Elsevier，2000：207–214.
[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)：3 553–3 561.(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)：3 553–3 561.(in Chinese))
[5] HUNSCHE U，ALBRECHT H. Rock salt—the mechanical properties of the host rock material for a radioactive waste repository[J]. Engineering Geology，1999，52(3)：271–291.
[6] MUNSON D E，CHAN K S，FOSSUM A A F. Fracture and healing of rock salt related to salt caverns[R]. Las Vegas，Nevada：Solution Mining Research Institute，1999.
[7] 梁卫国，徐素国，赵阳升，等. 盐岩蠕变特性的试验研究[J]. 岩石力学与工程学报，2006，25(7)：1 386–1 390.(LIANG Weiguo，XU Suguo，ZHAO Yangsheng，et al. Experimental study on creep property of rock salt[J]. Chinese Journal of Rock Mechanics and Engineering，2006，25(7)：1 386–1 390.(in Chinese))
[8] 郤保平，赵阳升，赵金昌，等. 层状盐岩温度应力耦合作用蠕变特性研究[J]. 岩石力学与工程学报，2008，27(1)：90–96.(XI Baoping，ZHAO Yangsheng，ZHAO Jinchang，et al. Study on coupled thermal- mechanical creep properties of bedded rock salt[J]. Chinese Journal of Rock Mechanics and Engineering，2008，27(1)：90–96.(in Chinese))
[9] CHEN Z，WANG M L. Study of tertiary creep of rock salt[J]. Journal of Engineering Mechanics，1997，123(1)：77–82.
[10] FOREST S，BARBE F，CAILLETAUD G. Cosserat modelling of size effects in the mechanical behaviour of polycrystals and multi-phase materials[J]. International Journal of Solids and Structures，2000，37(46–47)：7 105–7 126.
[11] 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 behavior of bedded rock salt[J]. Advances in Mechanics，2008，38(4)：484–494. (in Chinese))
[12] 吴 文，杨春和，侯正猛. 盐岩中能源(石油和天然气)地下储存力学问题研究现状及其发展[J]. 岩石力学与工程学报，2005，24(增2)：5 561–5 568.(WU Wen，YANG Chunhe，HOU Zhengmeng. Investigations on studied situations associated with mechanical aspects and development for underground storage of petroleum and natural gas in rock salt[J]. Chinese Journal of Rock Mechanics and Engineering，2005，24(Supp.2)：5 561–5 568.(in Chinese))
[13] HARDY H R，CHABANNES C R，MRUGALA M. Laboratory and theoretical studies relative to the design of salt caverns for the storage of natural gas[C]// Proceedings of the 6th International Symposium on Salt. [S.l.]：[s.n.]，1983：385–416.
[14] BEREST P，BERGUES J，BROUARD B，et al. A salt cavern abandonment test[J]. International Journal of Rock Mechanics and Mining Sciences，2001，38(3)：357–368.
[15] 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.(YANG Chunhe，LI Yinping，CHEN Feng. Mechanics theory and engineering about bedded rock salt[M]. Beijing：Science Press，2009.(in Chinese))
[16] 梁卫国，杨春和，赵阳升. 层状盐岩储气库物理力学特性与极限运行压力[J]. 岩石力学与工程学报，2008，27(1)：22–27.(LIANG Weiguo，YANG Chunhe，ZHAO Yangsheng. Physico-mechanical properties and limit operation pressure of gas deposit in bedded salt rock[J]. Chinese Journal of Rock Mechanics and Engineering，2008，27(1)：22–27.(in Chinese))
[17] 刘耀儒，王传奇，杨 强. 基于变形加固理论的结构稳定和加固分析[J]. 岩石力学与工程学报，2008，27(增2)：3 905–3 912.(LIU Yaoru，WANG Chuanqi，YANG Qiang. Analysis of structure stability and reinforcement based on deformation reinforcement theory[J]. Chinese Journal of Rock Mechanics and Engineering，2008，27(Supp.2)：3 905–3 912.(in Chinese))
[18] 杨 强，陈 新，周维垣. 三维弹塑性有限元计算中的不平衡力研究[J]. 岩土工程学报，2004，26(3)：323–326.(YANG Qiang，CHEN Xin，ZHOU Weiyuan. On unbalance forces in 3D elastoplastic finite element analysis[J]. Chinese Journal of Geotechnical Engineering，2004，26(3)：323–326.(in Chinese)) |
|
|
|
2011, Vol. 30 
