铁路与高速公路地质勘察对比

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摘要研究目的:目前高速公路与铁路蓬勃发展。两者均为线路工程,但由于所执行的行业规范不同,工程地质勘察中存在一些不同做法,实际工作时易引起地质人员混淆，造成失误。对两者勘察工作进行探讨有利于指导工程勘察与成果资料的交流使用。

研究结论:(1)勘察阶段划分相近，高速公路工程地质勘察侧重于初勘、详勘’铁路勘察侧重于初测、定测、补定测三阶段勘察;(2)铁路隧道围岩分级采用定性描述与多指标定量评价相结合的方法，公路则是在定性评价基础上的多参数定量评价法，两者方法对隧道围岩分级差异不;(3)在不良地质与特殊岩土如砂土液化与膨胀土判别中存在差异;(4)岩土分类中圆砾（角砾）与卵石（碎石）分界粒径、黏性土塑性状态划分与软土分类三方面存在不同;(5)对水与土腐蚀性评价存在一些显著差别。

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	陈伟

关键词 ：高速公路, 铁路, 地质勘察, 区别

Abstract：Research purposes: At present, the highway and railway constructions are booming. They both belong to transportation project, but they follow the different professional standards，so they have different working ways for the engineering geological invetisgation. In practice, it is easy to cause the confusion to make error. To discuss their geological investigation works is helpful for guiding the engineering investigation and exchanging the data.

Research conclusions: (1) In dividing the investigation stage，they are almost the same，but the highway engineering geological investigation focuses on the preliminary investigation and detailed investigation, while the railway geological investigation focuses on the preliminary investigation, location investigation and supplemental locational investigation. (2) The qualitative description is used for the surrounding rock classification of the railway tunnel along with the multiple indicator quantitative evaluation，while the quantitative evaluation-based multiple parameters method is used for the highway tunnel. Their results have a little gap. (3) There are gaps in discrimination of the unfavorable geological conditions and special rock soil，such as sand liquefaction and expansive soils. (4) There are gaps in soil classification, such as the classifications of the boundaries gravel soil particle size, the clayey soil plasticity state and the soft soil. (5) There are big gaps in evaluation of the water and soil corrosions.

Key words： highway railway geological investigation gap

收稿日期: 2010-05-10

PACS:

U442

作者简介: 陈伟，1981年出生，男，工程师

引用本文:

陈伟. 铁路与高速公路地质勘察对比[J]. 铁道工程学报, 2013, 30(1): 1-4.
CHEN Wei. The Layout Research of Hubei Railway Passage along Yangtze River. 铁道工程学报, 2013, 30(1): 1-4.

链接本文:

http://tdgcxb.crec.cn/CN/ 或 http://tdgcxb.crec.cn/CN/Y2013/V30/I1/1

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