桂北山区花岗岩差异风化特征及勘察方法研究

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Abstract In mountains of North Guangxi, granite has a wide distribution, which is poor weathering resistance and has bigger difference. When various engineering projects are designed and constructed in weathered granite layer, soil and rock mass classification, construction methods, designed protective measures, and project cost are affected by uneven weathering and onion weathering of granite rock. Also there are security risks in the construction process. Investigate means and methods and influencing factors research in granite rock-mass area are great important for engineering constructions. There is widely distribution of granite along the expressway in this region. By the comprehensive investigation means and method, find out the distribution of granite, analyze and research the influence factor of granite weathering which is great helpful for design and construction of engineering projects.Research conclusions:(1) Influencing factors for weathering of granite rock-mass are comprehensive in this region. Meanwhile these factors are interaction and influence each other. (2) The comprehensive investigation methods, can be used to identify the changes of granite weathering layer to obtain the accurate geological data. (3) Various survey methods complement each other, and are confirmed, arranging the investigation order, scientific analysis, statistics and research, can be accurately divided into partitions that simplify complex geological problems, principled, provide detailed and reliable basis for the design and construction data. (4) The research results have a good reference for survey and design of highway, railway and other projects with uneven weathering of granite.

Key words： granite uneven weathering investigate characteristics partition

Received: 05 May 2014

PACS:

U419

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Cite this article:

LI Jing-shan. Study on Uneven Weathering of Granite and Survey Methodin Mountains of North Guangxi[J]. 铁道工程, 2014, 31(10): 32-36.

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http://tdgcxb.crec.cn/EN/ OR http://tdgcxb.crec.cn/EN/Y2014/V31/I10/32

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