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在工程地质勘察及地基基础设计过程中,常需要根据地基土的各项计算指标(γ、c、φ),按现行地基基础设计规范(TJ7-74)公式(8)确定容许承载力R_5,并按公式(17)验算基础持力层以下各层土的承载力是否满足要求。此外在地基评价、基础方案选定以及分析基础工程事故原因等方面,都常需要估算地基的变形值。工程地质勘察人员在现
In the process of engineering geological survey and foundation design, it is often necessary to determine the allowable bearing capacity R_5 in accordance with the current foundation design code (TJ7-74) formula (8) according to various calculation indexes (γ, c, φ) of the foundation soil. And according to formula (17), check whether the bearing capacity of each layer below the basic bearing layer meets the requirements. In addition, it is often necessary to estimate the deformation value of the foundation in the aspects of foundation evaluation, selection of basic programs, and analysis of causes of foundation engineering accidents. Engineering Geological Surveyers Present