微扰动四轴搅拌桩数字化施工应用研究

杜策; 张振; 张力; 周振

doi:10.16030/j.cnki.issn.1000-3665.202210017

微扰动四轴搅拌桩数字化施工应用研究

doi: 10.16030/j.cnki.issn.1000-3665.202210017

杜策^{1, 2, 3,},
张振^{1, 2},
张力³,
周振⁴

1.
同济大学土木工程学院地下建筑与工程系，上海　200092
2.
同济大学岩土及地下工程教育部重点实验室，上海　200092
3.
上海渊丰地下工程技术有限公司，上海　201015
4.
上海渊水环境科技有限公司，上海　200433

详细信息

作者简介:
杜策（1983-），男，博士研究生，高级工程师，主要从事岩土工程设计与施工工作。E-mail：78127107@qq.com

中图分类号: TU753.3
计量
- 文章访问数: 64
- HTML全文浏览量: 16
- PDF下载量: 11
- 被引次数: 0
出版历程
- 收稿日期: 2022-10-10
- 修回日期: 2022-12-08
- 网络出版日期: 2023-11-01
- 刊出日期: 2023-11-15

Application of digital construction of the minor-disturbance four-axial soil mixing pile

DU Ce^{1, 2, 3
,},
ZHANG Zhen^{1, 2},
ZHANG Li³,
ZHOU Zhen⁴

1.
Department of Geotechnical Engineering, College of Civil Engineering, Tongji University, Shanghai　200092, China
2.
Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education, Tongji University, Shanghai　200092, China
3.
Shanghai Yuan Feng Underground Engineering Co. Ltd., Shanghai　201015, China
4.
Shanghai Yuan Shui Environmental Technology Co. Ltd. ,Shanghai　200433, China

摘要

摘要: 针对水泥土搅拌桩施工过程中数字化程度低、桩体质量难控、施工数据无法回溯等问题，以微扰动四轴搅拌桩为依托，研发了数字化搅拌桩施工云平台，云平台由数字化施工控制系统、云服务器和交互平台组成，实现成桩过程数据的实时追踪与反馈。通过数字化施工云平台，施工前输入同地层匹配的成桩参数，实现了变参数的自动化施工；输入与钻头提升速度相匹配的钻杆转速，控制搅拌次数大于规范要求值；输入地内压力控制阈值，实现施工过程中对地基土的微扰动，实测土体侧向位移和地表隆起均控制在毫米级范围；通过钻头垂直度实时监测，桩体垂直度可达到1/250；通过管理云平台,实现参建各方对施工质量的动态管控。研究成果对于全面提升搅拌桩施工质量和软基施工数字化水平具有重要的实践意义。
- 微扰动四轴搅拌桩 /
- 数字化施工 /
- 云平台 /
- 地内压力 /
- 垂直度
Abstract: Aiming at the problem of quality control of a deep mixing pile in construction process, this paper introduces a novel digital construction cloud platform incorporated in the equipment minor-disturbance four-axial soil mixing pile, realizing the real-time tracking and feedback in construction process. After inputting the parameter related to different strata into the platform, the variation of parameter is automatically controlled in construction. After inputting the threshold of underground pressure, the minor-disturbance to subsoil is realized with a measured soil lateral displacement and upheaving in millimeter scale. With a measurement of verticality of drill rod in real time, the pile verticality can be controlled to 1/250. The management cloud platform realizes a dynamic management of quality control for all parties in the construction. This practical results are beneficial to completely improve the construction quality of the deep mixing pile and digital construction level of soft soil.
- minor-disturbance four-axial soil mixing pile /
- digital construction /
- cloud platform /
- underground pressure /
- verticality

HTML全文

图 1 数字化搅拌桩施工云平台构成

Figure 1. Composition of the digital construction cloud platform

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图 2 数字化施工控制系统

Figure 2. Digital construction control system

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图 3 成桩阶段划分

Figure 3. Division of pile forming stages

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图 4 钻杆转速和提升速度关系曲线

Figure 4. Relation between shaft rotation rate and lifting speed

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图 5 监测点剖面布置图

Figure 5. Profile layout of the monitoring points

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图 6 成桩分段水胶比控制

Figure 6. Water binder ratio control of the construction section

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图 7 下钻速度同浆液流量匹配情况

Figure 7. Matching situation of drilling speed and slurry flow

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图 8 明故宫站地内压力曲线

Figure 8. Underground pressure curve of the Ming Gugong station

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图 9 实测土体测斜曲线

Figure 9. Measured soil inclinometer curve

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图 10 实测地表隆起曲线

Figure 10. Measured surface upheaving curve

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图 11 垂直度监测

Figure 11. Verticality monitoring

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图 12 网站查询系统示意图

Figure 12. Diagram of the website query system

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图 13 手机小程序监控页面示意图

Figure 13. Diagram of the mobile monitoring page

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