多年冻土区公路路线选择分层目标法

汪双杰; 闫晓敏; 张驰; 孟良; 杨坤

doi:10.19818/j.cnki.1671-1637.2016.04.001

多年冻土区公路路线选择分层目标法

doi: 10.19818/j.cnki.1671-1637.2016.04.001

汪双杰^1,,
闫晓敏²,
张驰^{1, 2},
孟良²,
杨坤²

1.
中交第一公路勘察设计研究院有限公司高寒高海拔地区道路工程安全与健康国家重点实验室, 陕西西安 710075
2.
长安大学特殊地区公路工程教育部重点实验室, 陕西西安 710064

基金项目:

国家科技支撑计划项目 2014BAG05B01

国家科技支撑计划项目 2014BAG05B03

交通运输部建设科技项目 2013 318 490 010

交通运输部应用基础研究项目 2014 319 812 170

中国博士后科学基金项目 2016M590915

详细信息

作者简介:
汪双杰(1962-), 男, 安徽怀宁人, 中交第一公路勘察设计研究院有限公司教授级高级工程师, 工学博士, 从事公路设计研究

中图分类号: U412.1
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- 被引次数: 0
出版历程
- 收稿日期: 2016-06-21
- 刊出日期: 2016-08-25

Hierarchical object method of highway route selection in permafrost region

1.
State Key Laboratory of Road Engineering Safety and Health in Cold and High-Altitude Regions, CCCC First Highway Consultants Co., Ltd., Xi'an 710075, Shaanxi, China
2.
Key Laboratory for Special Area Highway Engineering of Ministry of Education, Chang'an University, Xi'an 710064, Shaanxi, China

More Information

Author Bio:
WANG Shuang-jie(1962-), male, senior engineer, PhD, +86-29-88320807, wangshj@ccroad.com.cn

摘要

摘要: 为了进行多年冻土区公路路线设计, 以多尺度效应理论为基础, 提出了基于保护冻土由粗到细、由面到带、由带到线的分层目标选线方法, 构建了理论模型。结合不同地形地貌、既有工程、构造物与建筑物在不同比例尺下的表现形态, 给出了分层目标法的层次划分, 确定了每个层次下公路路线选择的影响因素。考虑路线节点重要度和地形地貌的影响, 给出了第1层次下多年冻土区选线模型。利用公度原理给出了第2层次下平均海拔、平均坡度、年平均地温、冻土分布、融区构造和既有工程等影响因素的标度分级, 并构造了第2层次下多年冻土区公路选线困难度模型。综合考虑冻土地温、冻土含冰量、冻土病害和植被覆盖带来的冻土危害, 同时兼顾多年冻土区既有工程的热干扰, 构建了第3层次多年冻土区公路选线可靠度模型。以青藏高原多年冻土区秀水河至雅玛尔河段为例, 运用分层目标法进行了公路选线。研究结果表明: 运用分层目标法确定的路线方案可以准确避绕高病害率的冻土区域, 避开既有工程的相互干扰, 从而获得工程困难度低、可靠度高的路线方案。
- 道路工程 /
- 多年冻土区 /
- 公路选线 /
- 分层目标法 /
- 工程困难度 /
- 路线可靠度
Abstract: In order to design the highway route in permafrost region, the hierarchical object method to protect the permafrost from coarse to fine, from surface to belt, from band to line was proposed based on multi-scale effect theory, and the theory model was constructed. Combined with the display forms of different topographies, landforms, existing projects, structures, and buildings in different scales, the hierarchical division of hierarchical object method was given, and the influence factors of highway route selection in each level were determined. Considering the influence of route node's importance degree, topography and landform in permafrost region, the highway route selection model in the first level was given. The scale classifications of average altitude, average slope, annual average ground temperature, permafrost distribution, talik structure, and existing projects were obtained by using commensurability principle, and then thehighway route selection difficulty degree model in permafrost region was established in the second level. The permafrost hazards caused by permafrost ground temperature, permafrost ice content, permafrost disaster, and vegetation coverage were considered synthetically, and the thermal disturbance among existing projects in permafrost region was also taken into consideration, then the highway route selection reliability model in the third level was established. The permafrost region of Qinghai-Tibet Plateau from Xiushui River to Yamarle River was taken as example, and the route selection was carried out by using hierarchical object method. Analysis result shows that the route plan determined by hierarchical object method can accurately avoid the permafrost region with high disease rate and evade the disturbance among existing projects, and a route plan with low engineering difficulty degree and high engineering reliability is achieved.
- road engineering /
- permafrost region /
- highway route selection /
- hierarchical object method /
- engineering difficulty degree /
- route reliability

HTML全文

图 1 公路路线设计过程的层次顺序结构

Figure 1. Layer sequence structure of highway route design process

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图 2 不同比例尺下地形地貌层次划分

Figure 2. Hierarchical division of topographies and landforms in different scales

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图 3 不同比例尺下既有工程层次划分

Figure 3. Hierarchical division of existing projects in different scales

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图 4 不同比例尺下构造物、建筑物层次划分

Figure 4. Hierarchical division of structures and buildings in different scales

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图 5 分层目标法选线流程

Figure 5. Route selection flow of hierarchical object method

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图 6 第1层次公路路线选择流程

Figure 6. Highway route selection flow in first level

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图 7 第2层次公路路线选择流程

Figure 7. Highway route selection flow in second level

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图 8 第3层次公路路线选择流程

Figure 8. Highway route selection flow in third level

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图 9 第1层次路线方案

Figure 9. Route plan in first level

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图 10 第2层次路线方案

Figure 10. Route plan in second level

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图 11 第3层次路线方案

Figure 11. Route plan in third level

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表 1 第2层次公路建设影响因素

Table 1. Highway construction influence factors in second level

表 2 困难度各影响因素定量标度分级

Table 2. Quantitative scale classification of influence factors of difficulty degree

表 3 困难度各影响因素定性标度分级

Table 3. Qualitative scale classification of influence factors of difficulty degree

表 4 冻土病害各影响因素标度分级

Table 4. Scale classification of influence factors of permafrost disaster

表 5 线形工程的路基热影响间距

Table 5. Subgrade thermal influence distances of linear projects

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