摘要
强夯作为一种广泛应用于地基处理领域中的土改良技术,在岩土行业内取得了良好的应用效果。强夯地基加固过程中,重锤冲击加固土体的同时,也在地基土体中产生了强烈的振动,强夯振动以波动的方式在地基土体中扩散传播,对场地中和场地周边的环境造成不良影响,甚至导致建筑物的破坏。了解和掌握强夯加固过程中的强夯振动强度及其衰减规律,认识强夯振动对建筑物产生的影响,研究建筑物对强夯振动的响应,确定强夯加固施工相对于建(构)筑物的安全距离,对于最大限度降低强夯振动对工程和环境的负面作用具有重要意义。本文以山西某输电工程为依托,研究强夯振动在大面积回填区域中对挡土墙的作用和影响,主要分为两个部分:地基填筑强夯振动波场研究和强夯振动对场地外围挡土墙的影响研究,以期为同类型项目的处理方法提供参考。
Dynamic compaction of soils is a wide spread soil improvement technique that has been used with proven effectiveness in the field of geotechnical engineering.In the heavy tamping foundation reinforcement,heavy hammer impact also produces a strong vibration in the foundation soil at the same time,and the dynamic compaction vibration spreads to fluctuations in the soil,causing adverse effects on the field and surrounding environment,and even lead to the destruction of buildings.To understand and grasp the dynamic compaction vibration strength and attenuation law in the process of dynamic consolidation,understanding the influence of dynamic compaction vibration on buildings,to study the response of buildings to dynamic compaction,to determine the safe distance of dynamic consolidation construction relative to the building,they are of great significance for minimizing the negative effects of dynamic compaction vibration on engineering and environment.Based on a power transmission project in Shanxi,the action and influence of dynamic compaction vibration on the retaining wall are studied.The study is mainly divided into two parts,the study of vibration wave field of foundation consolidation by dynamic compaction and the study of the influence of dynamic compaction vibration on the field surrounding retaining wall,to provide the reference for the handing methods of similar projects.
作者
刘磊
王健
李俊杰
张力闻
Liu Lei;Wang Jian;Li Junjie;Zhang Liwen(CIGIS(CHINA)LIMITED,Beijing 100007,China;China University of Geosciences,Beijing 100083,China)
出处
《工程勘察》
2026年第2期46-54,共9页
Geotechnical Investigation & Surveying
关键词
强夯振动
挡土墙稳定性分析
安全距离
dynamic compaction vibration
retaining wall stability
safe distance
