Research on inversion of energy efficiency and compacted and affected
scope of dynamic compaction

WEN Si-qiang; LI Yun-peng; MA Kang

doi:10.16285/j.rsm.2015.S2.024

English Version Journal Login

您当前的位置：

首页 >

文章列表页 >

Research on inversion of energy efficiency and compacted and affected scope of dynamic compaction

更新时间：2026-06-25

- Research on inversion of energy efficiency and compacted and affected scope of dynamic compaction
- Vol. 36, Issue S2, Pages: 185-192(2015)
- 作者机构：
  
  中国石油大学(北京) 机械与储运工程学院,北京,102249
- 作者简介：
- 基金信息：
- DOI：10.16285/j.rsm.2015.S2.024
  CLC： TU472
- Online First：14 June 2018，
  
  Published：2015
- 稿件说明：
移动端阅览
WEN Si-qiang, LI Yun-peng, MA Kang. Research on inversion of energy efficiency and compacted and affected scope of dynamic compaction[J]. 2015, 36(S2): 185-192.
DOI：

WEN Si-qiang, LI Yun-peng, MA Kang. Research on inversion of energy efficiency and compacted and affected scope of dynamic compaction[J]. 2015, 36(S2): 185-192. DOI： 10.16285/j.rsm.2015.S2.024.

摘要

强夯法具有高效的地基处理能力而被广泛应用，但加固地基的同时会对周围工程结构和环境产生一定的振动危害。以能量转换原理为基础，近似将夯击能分为振动波能和土体塑性功两部分，通过建立的强夯椭球体分区加固模型，导出塑性功计算格式，提出利用监测强夯夯坑深度变化信息来反演强夯能量利用率的反演方法，并导出了相应的反演公式。依据加固压实区和加固影响区椭球体分布假设和夯坑深度变化监测结果，给出了强夯加固范围和影响范围大小的计算思路和方法。以北京园博园回填土地基强夯加固工程为背景，利用现场监测试验信息对强夯能量利用率和加固范围及影响范围进行了反演分析和计算。分析表明，文中方法不仅能够有效地反演出强夯能量利用率和计算出强夯加固范围和影响范围，且可利用分析结果能够方便地估算地基强夯加固时的有效夯击次数，进行加固方案设计等。通过分析结果与现场地基测试结果的比较，验证了文中方法的有效性和实用性。

Abstract

Dynamic compaction method is widely used for its high efficiency in foundation treatment. But the vibration caused by dynamic compaction will threaten the surroundings especially the structures around. Base on the fact that the tamping energy is approximately divided into vibrational energy and plastic work of soil

the formula of plastic work is derived according to the proposed ellipsoid partition model of dynamic compaction

and the inversion method of the energy efficiency is given by monitoring the information such as depth of tamping pits；also the inversion formula is derived. According to the ellipsoid distribution hypothesis of the affected zone and compacted zone

associated with the monitoring data of the depth of tamping pits

the calculation method of compacted scope and affected scope is given. Finally

under the background of the Beijing Garden Expo Park backfill soil reinforcement project

the compacted scope and affected scope as well as energy efficiency of dynamic compaction are calculated and inversed according to the field monitoring information. The result shows that the method in this paper can not only inverse the energy efficiency and calculate the compacted scope and affected scope

but also provide a reference to estimate the effective number of tamping in the design of reinforcement scheme. By comparing the analytical results with the foundation testing results

the effectiveness and practicability of the method in this paper are verified.

关键词

Keywords

references

Views

213

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Effect of dynamic compaction vibration on cutoff wall and its safety monitoring

Consolidation coefficient inversion of seawall foundation and prediction of its post construction settlement based on fractal theory

Experimental research on dynamic compaction parameters of collapsible loess foundation in Lishi region

Research on mesomechanical parameters of rock and soil mass based on BP neural network

Study of the hydro-mechanical-damage coupled creep constitutive model of mudstone, Part Ⅱ: Numerical algorithm and parameter inversion

Related Author

LIU Bo1

LI Hai-bo

FENG Hai-peng

ZHOU Qing-chun1

WANG Miao1

SONG Quan-jie1

QIN Zhi-hai

QIN Peng

Related Institution

China Nuclear Power Engineering Co., Ltd.

State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences

Department of Construction Engineering, Zhejiang Water Conservancy and Hydropower College

Huaqing College, Xi'an University of Architecture and Technology

College of Civil Engineering, Xi'an University of Architecture and Technology

AI问答

⁰