复杂层状地基岩体工程建模方法研究
摘要:不同成因的岩体，受成岩条件、地质构造运动、变质作用及风化作用影响，岩石工程性质表现出明显的不同。在实际工程应用阶段，为考虑应力分布及方便计算，需要将相对复杂的岩体进行工程简化。在工程区范围内，为客观取得岩土工程设计参数和评价工程特性，合理的工程简化是实现地基计算的基本前提。以某核电工程为例，通过大量的试验和测试工作，将工程性质相近的岩层归并简化，客观揭示了复杂层状岩体的特性规律。工程实践表明，该项目地层不均匀性特征比较明显，单纯按照岩组及风化程度来划分工程地质单元均不能反映岩性本身的性质差异。研究认为，结合各种类型岩体的声波测试、力学试验数据，按照岩性组合进行工程地质分层，更符合工程实际。
Abstract:The characteristics of rock engineering are obviously different due to the influence of diagenetic conditions, geological tectonics, metamorphism and weathering. In the practical engineering application, considering the stress distribution and convenient calculation, the relatively complex rock mass should be simplified. Within the scope of a project, to obtain geotechnical design parameters objectively and evaluation of engineering properties, reasonable engineering simplification is the basic premise to realize the foundation calculation. Taking a certain nuclear power project as an example, by means of a large number of experiments and tests, merge and simplify the rock strata with similar engineering properties, the characteristics of complex layered rock mass have been revealed. The engineering practice shows that the rock mass of the site presents obvious inhomogeneous characteristics, and the division of the engineering geological unit according to the rock group and weathering intensity to divide the engineering geological unit does not reflect the difference of lithology; According to the acoustic and mechanical experiment data of various types of rock mass, the engineering geological section is carried out according to the lithological combination, which conforms to the engineering practice.
中文标题：
复杂层状地基岩体工程建模方法研究
Modeling Method of Complex Layered Foundation Rock Mass
作者：
李金
Li Jin
作者简介:李金,男,1972年生,汉族,工学学士,高级工程师,主要从事工程地质、水文地质及岩土工程及有关研究工作。E-mail:lijin727320@sina.com
通讯地址：
深圳中广核工程设计有限公司, 广东深圳 518172
ChinaNuclearPowerDesignCo.,Ltd(Shenzhen).,Shenzhen518172,Guangdong,China
中图分类号:TU470+.3
doi:10.3969/j.issn.1007-2993.2021.03.008
出版物：岩土工程技术
收稿日期:2020-06-29
网络出版日期:2021-11-12
关键词:复杂层状地基,褶皱层理,试验方法,变形监测,工程地质分层
Key words:complex layered foundation,fold bedding,test method,deformation monitoring,engineering geological section
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