[1]李喜安,彭建兵,马润勇,等.黄土洞穴危害及其形成演化机制[J].西安科技大学学报,2009,(06):737-741.
 LI Xi-an,PENG Jian-bing,MA Run-yong,et al.On the hazards and evolution processes of loess tunnels[J].Journal of Xi'an University of Science and Technology,2009,(06):737-741.
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黄土洞穴危害及其形成演化机制()
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西安科技大学学报[ISSN:1672-9315/CN:61-1434/N]

卷:
期数:
2009年06期
页码:
737-741
栏目:
出版日期:
2009-11-11

文章信息/Info

Title:
On the hazards and evolution processes of loess tunnels
文章编号:
1672-9315(2009)06-0737-05
作者:
李喜安1234彭建兵1马润勇1乔晓英5康景辉1李 亮1
1.长安大学 地质工程与测绘学院,陕西 西安 710054; 2.成都理工大学 地质灾害防治与地质环境保护国家专业实验室, 四川 成都 610059; 3.教育部 地质资源与地质工程重点实验室,陕西 西安 710054; 4.国土资源部 岩土工程开放研究实验室,陕西 西安 710054; 5.长安大学 环境科学与工程学院,陕西 西安 710054
Author(s):
LI Xi-an1234PENG Jian-bing1MA Run-yong1 QIAO Xiao-ying5KANG Jing-hui1LI Liang1
1.College of Geology Engineering and Geomatics, Chang'an University, Xi'an 710054,China; 2.National Laboratory of Geo-hazards Prevention and Geo-environment Protection, Chengdu University of Geo-technology, Chengdu 610059,China; 3.Key Laboratory of Western China's Mineral Resources and Geological Engineering, Ministry of Education, Xi'an 710054,China; 4.Open Research Laboratory of Geotechnical Engineering,Ministry of Land Resources, Xi'an 710054,China; 5.School of Environ Science and Engineering, Chang'an University, Xi'an,710054,China
关键词:
黄土洞穴 公路工程 破坏类型 演化机制
Keywords:
loess tunnels highway engineering damage mode develop mechanics
分类号:
P642,22
文献标志码:
A
摘要:
指出黄土地质灾害的发生主要与地表水的集中入渗有关,而黄土洞穴则往往是地表水在黄土地层中通过各种黄土节理、裂隙集中入渗最为直观的体现。通过野外调查,查明了黄土洞穴对公路工程的危害,并将其对公路工程的破坏归纳为以径流冲蚀作用为主的破坏类型、以渗流潜蚀作用为主的破坏类型、以湿陷潜蚀作用为主的破坏类型、复合作用破坏类型; 对每种类型的破坏机理及其各自特点分别进行了概括,认为公路工程对原始地形地貌、汇水条件、土质条件和地层条件的改变是其发生洞穴破坏的根本原因; 以黄土洞穴对公路工程的破坏机理为启迪,对黄土洞穴的发展演化机制进行了深入讨论。其成果不仅可深入揭示黄土洞穴的成因,而且对集中渗流作用下黄土地质体稳定性的研究亦具有重要的借鉴意义。
Abstract:
The point of view is made in this paper that the intensive infiltration of runoff is the main cause of geological hazard in the loess area, in which the loess tunnel is the most popular visible representation of the intensive infiltration at joints and fissures in the loess layers. With the field surveying, the typical damages caused by loess tunnels to highway are generalized as abrasion mode, underground erosion mode, collapse erosion mode and compound mode. The characters and causes of each mode are analyzed, suggesting that the changing of original landform, property of the loess as well as the layer formation is the main cause of the loess tunnels. The evolution processes of loess tunnels are divided into five types: emerging period, developing period, clasping period and disappearing period. The work of this paper not only disclosures the intrinsic mechanism of loess tunnels, but also provides reliable bases for further related studies on the stability of loess body, especially where there are the intensive infiltration of runoff.

参考文献/References:

[1] 李喜安.黄土暗穴的成因及其公路工程灾害效应研究[D].西安:长安大学,2004.
LI Xi-an. On the origin of hidden holes in loess and its hazardous effects on the highway engineering[D].Xi'an:Chang'an University,2004.
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[3] 李喜安,彭建兵,陈志新,等.黄土洞穴潜蚀地貌及其利弊综合分析[J].西安科技大学学报, 2009,29(1):78-84.
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备注/Memo

备注/Memo:
收稿日期: 2009-05-08 基金项目: 国家自然科学基金项目(40772182); 国家西部交通建设科技攻关项目(200131881213) 作者简介: 李喜安(1968-),男,陕西丹凤人,副教授,博士后,主要从事工程地质与地质灾害方面的教学与科研工作.
更新日期/Last Update: 2009-11-11