黄土崩塌病害问题成为困扰陕北地区基础建设的技术难题,严重威胁交通、建筑的运营安全,但针对其崩塌破坏模式及对应防控对策展开系统、总结性的研究较少。基于陕北地区黄土边坡特有发育特征,综合分析该地区典型黄土崩塌灾害,对陕北黄土崩塌破坏模式进行系统提炼、归纳,从破坏形式上将其分为:剥落式、崩落式、台阶式、倾倒式、滑移式、冒落式6种;从破坏驱动机制上将其分为:应力型驱动、节理型驱动、扰动型驱动、混合型驱动4种。此外,针对各自的破坏模式,通过广泛归纳目前常用处置手段,提出各自对应的有效防控对策。研究成果对于陕北地区黄土崩塌破坏认知、具体防控手段选择具有重要工程参考价值。
Abstract
Loess collapse has become a technological problem in the infrastructure in Northern Shaanxi area severely threatening the safety of traffic and buildings. But systematic and summative studies on the failure modes and prevention measures are rarely seen. In this paper according to the peculiar development characteristics of loess slope in Northern Shaanxi, typical loess collapses in this region are comprehensively analysed, and the failure modes are summarized. In terms of failure pattern, the loess collapses are divided into spalling, caving, step-falling, toppling, sliding, and roof-falling. And in terms of collapse mechanism, the loess collapses are driven by stress, joint development, human and precipitation disturbance, as well as the combined action of multiple factors. In addition, commonly adopted countermeasures are summarized and effective measures corresponding to different failure modes are proposed.
关键词
黄土崩塌 /
破坏模式 /
驱动机制 /
防控对策 /
陕北地区
Key words
loess collapse /
failure mode /
driving mechanism /
prevention and control measures /
northern Shaanxi area
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参考文献
[1] 方 鹏.黄土边坡剥落病害处治技术研究[D].西安:长安大学,2007. (FANG Peng. Technology of Treating Spalling of Loess Slope[D]. Xi’an: Chang’an university, 2007. (in Chinese))
[2] 李 萍,张 波,李同录. 黄土高原边坡特征与破坏规律的分区研究[J]. 地球科学与环境学报,2012,34(3):89-98. (LI Ping, ZHANG Bo, LI Tong-lu. Study on Region alization for Characteristic and Destruction Rule of Slope in Loess Plateau[J]. Journal of Earth Science and Enviorment, 2012, 34(3): 89-98. (in Chinese))
[3] 雷祥义.黄土高原地质灾害与人类活动[M].北京:地质出版社,2001.(LEI Xiang-yi. Geological Disaster and Human Activities in Loess Plateau[M].Beijing: Geology Press, 2001. (in Chinese))
[4] 王根龙,张茂省,苏天明,等. 黄土崩塌破坏模式及离散元数值模拟分析[J]. 工程地质学报,2011, 19(4):541-549. (WANG Gen-long, ZHANG Mao-sheng, SU Tian-ming,et al.Collapse Failure Modes and DEM Numerical Simulation for Loess Slopes[J]. Journal of Engineering Geology, 2011, 19(4): 541-549. (in Chinese))
[5] 叶万军,杨更社,常中华,等.黄土边坡剥落病害的发育特征及其发育程度评价[J]. 工程地质学报, 2011,19(1):37-42. (YE Wan-jun, YANG Geng-she, CHANG Zhong-hua, et al. Characteristics of Development State of Spalling Hazard in Loess Slope and Its Evaluation Method[J]. Journal of Engineering Geology, 2011, 19(1): 37-42. (in Chinese))
[6] 范丽晓,马玉梅,钱 璞,等.公路黄土崩塌灾害影响因素分析[J]. 华东公路, 2014,2(4):56-58. (FAN Li-xiao, MA Yu-mei, QIAN Pu,et al. Anaysis of Impact Factors of the Highway Loess Collapes[J]. East China Highway, 2014, 2(4): 56-58. (in Chinese))
[7] 段 钊,赵法锁,陈新建. 陕北黄土高原区崩塌发育类型及影响因素分析——以吴起县为例[J]. 自然灾害学报, 2012, 21(6):142-149. (DUAN Zhao, ZHAO Fa-suo, CHEN Xin-jian. Types and Influencing Factors of Collapse Development in Loess Plateau Region of North Shaanxi: A Case Study of Wuqi County[J]. Journal of Natural Disasters, 2012, 21(6): 142-149. (in Chinese))
[8] 雷祥义,魏青珂.陕北伤亡性黄土崩塌成因与对策研究[J].岩土工程学报,1998,20(1) : 64-69.(LEI Xiang-yi, WEI Qing-ke.Study on the Origin and Countermeasure of the Casualty Loess Landfalls in Northern Shaanxi[J]. Chinese Journal of Geotechnical Engineering, 1998,20(1):64-69.(in Chinese))
[9] 秦志坚,任龙江,张发如,等. 陕北黄土地区高速公路边坡防护及绿化调查与分析[J].路基工程,2012,5(10):47-50. (QIN Zhi-jian, REN Long-jiang, ZHANG Fa-ru, et al. Investigation and Analysis on Protection and Afforestation of Slope along Highway in Loess Area in Northern Shaanxi[J]. Subgrade Engineering, 2012,5(10): 47-50. (in Chinese))
[10]单志杰. EN-1离子固化剂加固黄土边坡机理研究[D].北京:中国科学院研究生院, 2010. (SHAN Zhi-jie. Mechanism of the Reinforcement of Loess Slope by EN-1 Ionic Soil Stabilizer[D]. Beijing: Graduate University of Chinese Academy of Sciences, 2010. (in Chinese))
[11]吴九江,程谦恭,孟祥龙. 黄土高边坡土钉-预加固桩复合支护体系性状分析[J].岩土力学, 2014,35(7): 2029-2040. (WU Jiu-jiang, CHENG Qian-gong, MENG Xiang-long. Behavior of a High Steep Loess Slope Strengthened by Combination System of Soil Nails and Stabilization Piles[J]. Rock and Soil Mechanics, 2014, 35(7): 2029-2040. (in Chinese))
[12]刘川顺,郑 勇,关洪林,等. 灌木对黄土边坡的加固效应[J].武汉大学学报(工学版), 2010, 43(1):55-58,128. (LIU Chuan-shun, ZHENG Yong, GUAN Hong-lin, et al. Effect of Shrub on Stability of Loess Slope[J]. Engineering Journal of Wuhan University,2010, 43(1):55-58, 128. (in Chinese))
[13]罗丽娟,赵法锁.滑坡防治工程措施研究现状与应用综述[J].自然灾害学报,2009,18(4):158-164.(LUO Li-juan,ZHAO Fa-suo.Status of Research and Application of Engineering Measures for Preventing and Controlling Landslide[J]. Journal of Natural Disasters,2009,18(4): 158 -164. (in Chinese))
[14]魏青珂.陕西崩塌灾害及其时空分布特征[J].灾害学, 1995,10(4) : 55 -59.(WEI Qing-ke. Collapse Hazards and Its Distribution Features of Time and Space in Shaanxi Province[J]. Journal of Catastrophology, 1995, 10(4): 55-59. (in Chinese))
基金
陕西省教育厅专项科研计划项目(14JK1861);榆林学院青年科技基金项目(10YK20)
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