按变形控制进行强夯加固地基设计思想的探讨  

DISCUSSION ON THE DESIGN IDEA OF GROUND IMPROVEMENT BY DYNAMIC COMPACTION BASED ON DEFORMATION CONTROL THEORY

作　　者：水伟厚 胡瑞庚[2] 

机构地区：[1]中化岩土集团股份有限公司,北京102600 [2]青岛理工大学土木工程学院,山东青岛266033

出　　处：《低温建筑技术》2018年第2期117-121,125,共6页Low Temperature Architecture Technology

基　　金：住房城乡建设部研究开发项目(2016-K5-018);北京市科技创新领军人才资助项目(2016-2-01)

摘　　要：因地基承载力指标简单易检测,以往地基处理工程中通常按浅层承载力为主要控制指标,特别是强夯法工程。随着工程实践的深入工程界越来越认识到地基承载力往往是地基处理成果的附产品,关键是处理后地基的变形特性是否满足要求。以强夯法为例阐述这一想法,提出"按变形控制进行强夯地基处理设计"的思路和方法。通过对强夯能级与浅层地基承载力、有效加固深度、变形之间关系的分析,结合工程实例,探讨了"按变形控制进行地基处理设计"的科学性、适用性,为按变形控制进行地基处理设计的新思路提供了借鉴。Because of the foundation bearing capacity being detected readily,bearing capacity ofshallow foundation was usually taken as the main control aim in the ground improvement project, espe-cially in dynamic compaction.The engineering field recognizes that the foundation bearing capacity isusually a by-product of ground improvement with the improvement of engineering practices and thekey is characteristics of deformation to meet the requirements. In this paper, take the dynamic com-paction method as an example to illustrate the idea and put forward the thought of using deformationcontrol theory to design ground improvement by dynamic compaction.Based on the analysis betweenthe energy level of dynamic compaction and foundation bearing capacity, effective depth of improve-ment,deformation, combining with engineering practices, discuss the scientificity and applicability ofthe design idea that use deformation control theory to design ground improvement project, providingreference for the new way about design theory of ground improvement.

关 键 词：变形控制 强夯法 地基处理设计 

分 类 号：TU443[建筑科学—岩土工程]