钻探工程2024，Vol.51Issue(2)：39-46,8.DOI:10.12143/j.ztgc.2024.02.006
地下连续墙液压抓斗在粘壤土地层施工中偏斜角度分析
Analysis of deviation angle of hydraulic grab for diaphragm wall in the construction of clay loam strata
金赠伍 1王清岩 2盛洁 3钟蔚岭1
作者信息
- 1. 吉林大学建设工程学院,吉林 长春 130026
- 2. 吉林大学建设工程学院,吉林 长春 130026||自然资源部复杂条件钻采技术重点实验室,吉林 长春 130026
- 3. 中水东北勘测设计研究有限责任公司,吉林 长春 130061
- 折叠
摘要
Abstract
During the construction of diaphragm wall using hydraulic grab,the grab needs to maintain vertical to ensure the accuracy of the side wall trench formation.When the excavation part of the grab interacts with the soil,the load acting on the grab has the characteristics of transient multidirectivity and non-uniformity,which leads to the deviation of the grab lowered by the steel rope and damages of the verticality of the trench wall surface.This article established a multi-body dynamic model of hydraulic grab and a clay soil layer model.Through the combination of multi-body dynamic and discrete element method,the tilt of the grab during the construction process of the hydraulic grab in the clay soil layer is analyzed,and an electro-hydraulic proportional speed control circuit to control the movement of the main hydraulic cylinder of the hydraulic grab is designed.Through joint simulation,the influence of the control signal of the main hydraulic cylinder on the tilt process of the grab is emphatically discussed,which provides a basis for further research on the hydraulic grab deviation correction system and control strategy.关键词
液压抓斗/斗体偏斜/电液比例调速回路/控制信号/联合仿真/粘壤土地层Key words
diaphragm wall hydraulic grab/grab deviation/electro-hydraulic proportional speed control circuit/control signal/joint simulation/clay loam strata分类
建筑与水利引用本文复制引用
金赠伍,王清岩,盛洁,钟蔚岭..地下连续墙液压抓斗在粘壤土地层施工中偏斜角度分析[J].钻探工程,2024,51(2):39-46,8.
