摘要
本文对石臼港区强风化花岗岩的变形和破坏的力学机制做了全面地分析论证。重点指出:(1)造成该区岩体风化破碎的主要动力来自所处的现代地质构造应力场,其次为气候和地下水等条件的参与;(2)尽管象砂土那样可以测定其粒度成分、内摩擦角和凝聚力等指标,但有着本质上的区别;(3)在评价地基沉降量时,应当采用变形模量(E_0)进行计算。
This paper has made a comprehensive analysis and demonstration to the mechanism of deformation and destruction of granite strong weathering zone in Shiju Port. The emphases are put on is three aspects: Ⅰ: The major dynamic resulted in weathering and fricture of rock in this area originated from modarn tectonic stress field and other factors were the climate and under-ground water. Ⅱ: Al- though the indexes such as granularity constituent, internal angle of friction and condensed force, and ere, can be measured as sand soil, there still exists an essential difference. Ⅲ: The deformation mo- dulus should be used in computing and evaluing foundation subsi- dence.
基金
交通部行业基金资助课题
