双轮铣槽机铣削过程及截齿入岩顺序优化研究

doi:10.16285/j.rsm.2021.1025

岩土力学 ›› 2022, Vol. 43 ›› Issue (4): 981-994.doi: 10.16285/j.rsm.2021.1025

双轮铣槽机铣削过程及截齿入岩顺序优化研究

肖建成^{1, 2}，周辉^{1, 2}，卢景景^{1, 2}，冯春³，徐福通^{1, 2}

1. 中国科学院武汉岩土力学研究所岩土力学与工程国家重点实验室，湖北武汉 430071；2. 中国科学院大学，北京 100049； 3. 中国科学院力学研究所流固耦合系统力学重点实验室，北京 100190

收稿日期:2021-07-07 修回日期:2021-10-19 出版日期:2022-04-15 发布日期:2022-04-16
通讯作者: 周辉，男，1972年生，博士，研究员，博士生导师，主要从事岩石力学与工程方面的研究工作。E-mail: hzhou@whrsm.ac.cn E-mail:xiaojiancheng19@mails.ucas.ac.cn
作者简介:肖建成，男，1996年生，博士研究生，主要从事岩石力学与数值模拟方面的研究工作。
基金资助:
国家自然科学基金（No. 41941018）；中国科学院基础前沿科学研究计划（No. ZDBS-LY-DQC022）；中国科学院科技服务网络计划（STS计划）项目（No. KFJ-STS-QYZD-174）；华能集团科技项目（No. HNKJ19-H14）。

Study on milling process and optimization of pick entry sequence of double-wheel trench cutter

XIAO Jian-cheng^{1, 2}, ZHOU Hui^{1, 2}, LU Jing-jing^{1, 2}, FENG Chun³, XU Fu-tong^{1, 2}

1. State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan, Hubei 430071, China; 2. University of Chinese Academy of Sciences, Beijing 100049, China; 3. Key Laboratory for Mechanics in Fluid Solid Coupling Systems, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, China

Received:2021-07-07 Revised:2021-10-19 Online:2022-04-15 Published:2022-04-16
Supported by:
This work was supported by the National Natural Science Foundation of China (NSFC)(41941018), the Key Research Program of Frontier Sciences of the Chinese Academy of Sciences (ZDBS-LY-DQC022), the Science and Technology Service Network Initiative of the Chinese Academy of Sciences (KFJ-STS-QYZD-174) and the China Huaneng Group Technology Project (HNKJ19-H14).

摘要/Abstract

摘要： 双轮铣槽机（简称“双轮铣”）是地下连续墙的专业施工装备，布齿系统是其核心部件，其参数设计与破岩性能密切相关。基于连续?非连续单元法（CDEM），建立了铣轮铣削岩土体过程的三维仿真模拟方法。在此基础上，考虑自由面与铣削关联性等因素，对布齿系统截齿入岩顺序影响破岩性能机制进行了研究，建立了关联铣削条件下以预置相邻自由面数目为主要影响因素的入岩顺序数值概化模型。结果表明：（1）获得的铣轮铣削岩土体的铣削力与铣削深度曲线，验证了此数值模拟方法的正确性；（2）相比于完整岩体，具有单相邻预设自由面与双相邻预设自由面岩样的峰值荷载分别下降了32.5%与68.2%，破岩能耗分别下降了19.8%与56.6%；（3）布齿系统中双相邻预设自由面的截齿占总体截齿数目比值越大，布齿系统整体能耗越低，异构式布齿系统能耗低于顺序式。研究成果为完善双轮铣槽机破岩过程与布齿系统优化提供了基础。

关键词: 双轮铣槽机, 布齿系统, 优化应用, 连续?非连续单元法（CDEM）

Abstract: Double-wheel trench cutter is a professional construction equipment of underground diaphragm wall, and its tooth arrangement system is its core component. The parameter design of tooth arrangement system is closely related to rock breaking performance. In this study, a three-dimensional simulation method for milling rock and soil with milling wheel is developed using the continuum-discontinuum element method (CDEM). On this basis, considering the correlation between free surface and milling, the mechanism of the influence of cutting sequence on rock breaking performance of tooth arrangement system is studied, and a numerical generalization model of rock entry sequence is established under the condition of associated milling, in which the number of adjacent free surfaces is preset as the main influencing factor. The results show that: (1) The curves of milling force and milling depth obtained by milling wheel milling rock and soil mass verify the correctness of the numerical simulation method. (2) Compared with the intact rock mass, the peak load of rock samples with single adjacent preset free surface and double adjacent preset free surface decreased by 32.5% and 68.2% respectively, and the energy consumption of rock breaking decreased by 19.8% and 56.6%, respectively. (3) In the tooth arrangement system, the larger the ratio of the double adjacent preset free surfaces to the total number of picks, the lower the overall energy consumption of the tooth arrangement system, and the energy consumption of the heterogeneous tooth arrangement system is lower than that of the sequential one. The research results provide a basis for improving the rock breaking process and tooth arrangement system optimization of double-wheel trench cutter.

Key words: double-wheel trench cutter, tooth arrangement system, optimization and application, continuum-discontinuum element method (CDEM)

中图分类号:

TU 94，TU 452

肖建成, 周辉, 卢景景, 冯春, 徐福通, . 双轮铣槽机铣削过程及截齿入岩顺序优化研究[J]. 岩土力学, 2022, 43(4): 981-994.

XIAO Jian-cheng, ZHOU Hui, LU Jing-jing, FENG Chun, XU Fu-tong, . Study on milling process and optimization of pick entry sequence of double-wheel trench cutter[J]. Rock and Soil Mechanics, 2022, 43(4): 981-994.

参考文献

相关文章 14

[1]	张魁, 杨长, 陈春雷, 彭赐彩, 刘杰, . 激光辅助TBM盘形滚刀压头侵岩缩尺试验研究[J]. 岩土力学, 2022, 43(1): 87-96.
[2]	闫长斌, 汪鹤健, 杨继华, 陈馈, 周建军, 郭卫新, . 利用PLSR-DNN耦合模型预测TBM净掘进速率[J]. 岩土力学, 2021, 42(2): 519-528.
[3]	温森, 周书宇, 盛桂琳, . 复合岩层中滚刀旋转切割破岩效率试验研究[J]. 岩土力学, 2019, 40(7): 2628-2636.
[4]	马春景，姜谙男，江宗斌，王善勇,. 基于单元状态指标的盾构隧道水-力耦合模拟分析[J]. , 2017, 38(6): 1762-1770.
[5]	余鹏程，张迎宾，赵兴权，黄小福，. 一种改进的二维DDA接触查找方法[J]. , 2017, 38(3): 902-910.
[6]	杨学林，王震. 动态施工条件下竖向立柱的承载力和稳定性研究[J]. , 2016, 37(S2): 53-59.
[7]	夏元友，裴尧尧，王震，陈少炎，陈晨 . 地下连续墙施工影响应力重分布的数值模拟[J]. , 2012, 33(11): 3433-3438.
[8]	赵林，曾宪明，李世民，林大路，陆卫国. 优化复合锚固结构与单一锚固结构抗爆性能对比试验研究[J]. , 2011, 32(10): 3019-3025.
[9]	冯庆高，周传波，傅志峰，章广成. 基坑支护方案的灰色模糊可变决策模型[J]. , 2010, 31(7): 2226-2231.
[10]	贾宁，孟庆辉，贾剑. 输电线路杆塔危岩威胁等级评价方法研究[J]. , 2010, 31(2): 604-608.
[11]	张成良，李新平，代翼飞，. 考虑损伤效应的岩锚梁光面爆破数值分析[J]. , 2007, 28(S1): 354-358.
[12]	汪新红，王明洋 . 岩爆与峰后岩石力学特性[J]. , 2006, 27(6): 913-919.
[13]	王勇，乔春生，孙彩红，刘开云. 基于SVM的溶洞顶板安全厚度智能预测模型[J]. , 2006, 27(6): 1000-1004.
[14]	张若木，杜文山. 某住宅楼纠倾加固方案设计与工程实施[J]. , 2005, 26(S2): 261-266.

Metrics

Viewed

Full text

Abstract

Cited

Shared

Discussed

双轮铣槽机铣削过程及截齿入岩顺序优化研究

Study on milling process and optimization of pick entry sequence of double-wheel trench cutter

PDF (Chinese)

PDF (English)

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 14

Metrics

本文评价

推荐阅读 10