北京山区高速公路勘察工作的探讨——以京承高速公路三期工程为例

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• 英文论文题名：Studying on investigation work of freeway in Beijing mountain area——take The third period of the Jingcheng Freeway project as an example
• 论文作者：郑春柳
• 英文论文作者：Zheng Chunliu ; Beijing Urban Construction Exploration & Surveying Design Research Institute Co.
• 年：2016
• 作者机构：北京城建勘测设计研究院有限责任公司;
• 论文关键词：岩土工程勘察 ; 北京山区 ; 京承高速公路
• 英文论文关键词：Geotechnical engineering investigation ; Beijing mountain area ; Jingcheng Freeway
• 会议召开时间：2016-09-05
• 会议录名称：2016年全国工程勘察学术大会论文集（上册）
• 英文会议录名称：Geotechnical Investigation & Surveying
• 语种：中文
• 分类号：U412.2
• 学会代码：ZJKC
• 会议名称：2016年全国工程勘察学术大会
• 会议地点：中国山西太原
• 主办单位：全国建筑工程勘察科技情报网、全国建筑工程勘察科技情报网华北情报站、中国建筑学会工程勘察分会
• 学会名称：中国建筑学会工程勘察分会
• 页数：7
• 文件大小：2285k
• 原文格式：O
• 会议级别：全国

摘要

随着北京地区经济的不断发展,近年来高等级公路、地铁、城市轻轨、铁路等工程不断向山区或浅山区延伸。由于山区气候条件多变,地形、地貌及工程地质条件复杂,地层变化大,不良地质作用分布广泛,工程敷设类型多(包括桥梁、隧道、路基)等诸多因素的存在,为山区高速公路的勘察过程带来了很多困难及风险,也对勘察工作提出了更高的要求,因此加强山区勘察工作的经验交流很有必要。京承高速公路三期工程是北京市一次建设里程最长的山区公路,是交通运输部确定的"公路勘察设计典型示范工程"之一,为我国北方地区高速公路的建设提供了示范性的工程案例。本文以京承高速公路三期工程为例,介绍了沿线的工程地质条件、水文地质条件及不良地质作用,阐述了通过多种勘探方法的分析评价和综合运用,有效地解决了工程地质调查与测绘、巨厚卵石粒径与级配的确定、岩石强度与风化程度的确定、隧道围岩分级及土石可挖性分级的确定以及高填方路基的稳定性等主要技术难题,从而缩短了本工程重大复杂工程问题论证决策的周期,并取得了显著效果及一定工程效益。
With the the continuous economic development in Beijing area,highway 、 subway 、 city raiK rail and other projects is constantly extending to the mountain areas or shallow mountain areas recent years.Because of the existence of many factors,such as Changeable mountain weather conditions,complex topography and engineering geological conditions,great changes of the stratigraphic,widely undesirable geological processes distributed,so many engineering types(including bridges,tunnels,embankment) etc.,brought many difficulties and risks,to the mountain highway investigation work,also put forward higher requirements for the investigation work,so it is necessary to strengthen the experience exchange for the mountain investigation work.The thrd period of the Jingcheng Freeway project is the longest mountain road in Beijing because of the One-time construction,it also confirm by the the Ministry of Transport as one of the "typical model for the Highway investigation design Project",It provide a demonstration highway construction project for the north area of China.This paper take the thrd period of Jingcheng Freeway project as an example,introduce the engineering geological conditions、 hydrogeological conditions and the undesirable geological processes along,described through a variety exploration methods by analysis 、 evaluation and the integrated use,Solve the major complex engineering problems such as geological survey and mapping- the determinatian of the great thick pebble size and gradation 、 the determinatian of the rock strength and weathering degree 、 the tunnel surrounding rock classification and quarrying dug classification the stability of the high-side fill roadbed,thus make the cycle of the demonstrate and decision-making about the major and complex engineering problems shorten,and achieved remarkable results and certain project benefits.

引文

[1]《岩土工程勘察规范》(GB50021-2001,2009版).
    [2]常士骠,张苏民主编.工程地质手册(第四版)[M].中国建筑工业出版社.2007.
    [3]王瑶.京承高速公路(沙峪沟~市界段)工程第一标段路线工程地质总说明.2007