关于浅基础和振冲挤密法地基处理两类计算问题的探讨  

Discussion on Two Types of Calculation Problems for Shallow Foundation and Vibroflotation Compaction Foundation Treatment

作　　者：赵耀辉 王潇潇 墨亮 薛军委 ZHAO Yaohui;WANG Xiaoxiao;MO Liang;XUE Junwei(Shandong Institute of Geophysical&Geochemical Exploration,Jinan Shandong 250013,China;Shandong Shenji Construction Engineering Co.,Ltd.,Jinan Shandong 250000,China;Shandong Geological Exploration Engineering Technology Research Center,Jinan Shandong 250013,China)

机构地区：[1]山东省物化探勘查院,山东济南250013 [2]山东省深基建设工程有限公司,山东济南250000 [3]山东省地质勘查工程技术研究中心,山东济南250013

出　　处：《有色金属设计》2024年第3期63-67,共5页Nonferrous Metals Design

摘　　要：文章旨在推导计算公式解决两类常见的岩土工程问题:(1)浅基础在荷载变化后基础尺寸和埋深调整设计问题;(2)在不同条件下采用振冲挤密法地基处理加填料设计计算问题。问题一计算公式的推导是利用地基承载力的深度和宽度修正计算原理公式,推导得到浅基础荷载变化后基础条件调整的一般简化公式;问题二是利用固体颗粒守恒解决振冲挤密法地基处理问题,根据这一基本原理结合置换率计算公式,通过变换参数推导出目标填料体积的一般公式。通过推导计算得到的结论性公式可以快速准确的计算得到目标设计参数,通过文中算例也可印证结论公式的合理性。由此可方便技术人员快捷准确地解决此类问题,得到目标设计参数,从而达到综合评价和优化设计方案的目标。This paper aims to deduce calculation formulas to solve two common geotechnical engineering problems:①Design of foundation size and burial depth adjustment after load change of shallow foundation;②Design and calculation of vibroflotation compaction foundation treatment with filler under different conditions.Problem 1:The derivation of calculation formula is to modify the calculation principle formula of depth and width of foundation bearing capacity,and deduce the general simplified formula of foundation condition adjustment after shallow foundation load changes;problem 2:vibroflotation compaction foundation treatment is solved by using the conservation of solid particles.According to this basic principle and the calculation formula of replacement rate,the general formula of target filler volume is derived by changing parameters.The target design parameters can be calculated quickly and accurately by deducing the conclusive formula,and the rationality of the conclusive formula can also be proved by examples in this paper.Therefore,it is convenient for technicians to quickly and accurately solve such problems and obtain target design parameters,thus achieving the goal of comprehensive evaluation and optimization of design schemes.

关 键 词：工程地质 浅基础设计 地基处理 振冲挤密法 

分 类 号：TU470+3[建筑科学—结构工程]