Evaluation of Jiuzhaigou earthquake ecological sensitive area and demonstration of road reconstruction plan
-
摘要: 九寨沟7.0级地震诱发大量地质灾害对九寨沟景区景观、生态和基础设施造成了较大破坏，景区公路沿线灾害频繁，公路受损严重，多处中断，其中五花海与熊猫海之间的老虎嘴路段因地形地质条件极其复杂，受损最为严重。在九寨沟生态极其敏感区进行恢复重建等工程活动中，仅靠地灾评估无法满足工程方案评价的需要，同时须考虑工程活动、地灾和生态之间的相互影响。本文首次结合地灾风险评估，建立了生态敏感区的生态风险评估标准，在对九寨沟老虎嘴路段联合进行地灾评估和生态风险评估的基础上，对该路段道路恢复重建方案进行了评价论证，最终确定道路恢复重建方案。Abstract: A large number of geological disasters caused by the Jiuzhaigou 7.0 earthquake caused great damage to the landscape, ecology and infrastructure in Jiuzhaigou scenic area. The disasters along the scenic roads were frequent, the roads were severely damaged, and many were interrupted. Due to the extremely complicated terrain and geological conditions, the road section between the Wuhuahai and Xiongmaohai is most damaged. Reconstruction and other engineering activities in ecologically sensitive areas such as Jiuzhaigou can not meet the needs of the evaluation of engineering schemes by geological disaster assessment alone. At the same time, the interaction between engineering activities, geological disasters and ecology must be considered. This article for the first time combined with the geological disaster risk assessment, established the ecological risk assessment criteria for ecologically sensitive areas. Based on both of the disaster assessment and ecological risk assessment, the road restoration and reconstruction plan of Laohuzui road section in Jiuzhaigou was evaluated and demonstrated. The road restoration and reconstruction plan was finalized.
-
-
[1] 程强, 胡朝旭, 杨绪波. 九寨沟地震区公路沿线地质灾害发育规律及防治对策[J]. 中国地质灾害与防治学报, 2018, 29(4):114-120.[CHENG Q, HU C X, YANG X B. Developmental regularity and preventive countermeasures of geological hazards along the highway in Jiuzhaigou earthquake area[J]. The Chinese Journal of Geological Hazard and Control, 2018, 29(4):114-120.(in Chinese)]
[2] 李敏娟, 沈旭章, 张元生, 等. 基于密集台阵的青藏高原东北缘地壳精细结构及九寨沟地震震源区结构特征分析[J]. 地球物理学报, 2018, 61(5):2075-2087.[LI M J, SHEN X Z, ZHANG Y S, et al. Fine crustal structures of northeast margin of the Tibetan Plateau and structural features of Jiuzhaigou earthquake focal area constrained by the data from a high-density seismic array[J]. Chinese Journal of Geophysics, 2018, 61(5):2075-2087.(in Chinese)]
[3] 许冲, 谭锡斌, 王世元,等. 2017年8月8日四川省九寨沟MS7.0地震触发滑坡全景[J]. 地震地质, 2018, 40(1):232-260.[XU C, TAN X B, WANG S Y, et al. A panorama of landslides triggered by the 8 August 2017 Jiuzhaigou, Sichuan Ms 7.0 earthquake[J]. Seismology and Geology, 2018, 40(1):232-260.(in Chinese)]
[4] 杨华阳, 许向宁, 杨鸿发. 基于证据权法的九寨沟地震滑坡危险性评价[J]. 中国地质灾害与防治学报, 2020, 31(3):20-29.[YANG H Y, XU X N, YANG H F. The Jiuzhaigou co-seismic landslide hazard assessment based on weight of evidence method[J]. The Chinese Journal of Geological Hazard and Control, 2020, 31(3):20-29.(in Chinese)]
[5] 中华人民共和国国土资源部. 地质灾害危险性评估规范:DZ/T 0286-2015[S]. 北京:中国标准出版社, 2015.[Ministry of Land and Resources of the People's Republic of China. Specification of risk assessment for geological hazard:DZ/T 0286-2015[S]. Beijing:Standards Press of China, 2015. (in Chinese)]
[6] 刘传正. 论地质灾害风险识别问题[J]. 水文地质工程地质, 2017, 44(4):1-7.[LIU C Z. Research on the risk recognition of geological disasters[J]. Hydrogeology & Engineering Geology, 2017, 44(4):1-7.(in Chinese)]
[7] 向波, 蒋劲松, 李本伟. 公路应急抢通保通技术手册[M]. 北京:人民交通出版社, 2018.[XIANG B, JIANG J S, LI B W. Technical manual for highway emergency repair and protection[M]. Beijing:China Communications Press, 2018.(in Chinese)]
[8] 甘建军, 刘民生, 黄润秋, 等. 九寨沟核心景区水循环系统研究[J]. 水文地质工程地质, 2010, 37(1):34-39.[GAN J J, LIU M S, HUANG R Q, et al. A study of hydrological cycle in the Jiuzhaigou core scenic area[J]. Hydrogeology and Engineering Geology, 2010, 37(1):34-39.(in Chinese)]
[9] 武斌, 汪智, 张淳, 等. 综合工程物探在九寨沟核心景区水循环系统研究中应用评价[J]. 四川地质学报, 2009, 29(2):213-216.[WU B, WANG Z, ZHANG C, et al. The application of comprehensive engineering geophysical exploration to the study of hydrologic cycle system in the Jiuzhai valley scenic spot[J]. Acta Geologica Sichuan, 2009, 29(2):213-216.(in Chinese)]
[10] 尹观, 范晓. 四川九寨沟水循环系统的同位素示踪[J]. 地理学报, 2000, 55(4):487-494.[YIN G, FAN X. Isotope tracer on water cycly system in Jiuzaigou, Sichuan[J]. Acta Geographica Sinica, 2000, 55(4):487-494.(in Chinese)]
-
计量
- 文章访问数: 941
- PDF下载数: 63
- 施引文献: 0
下载: