WO2021114649A1 - 基于皮带称重的土压平衡盾构出土量监控系统 - Google Patents

基于皮带称重的土压平衡盾构出土量监控系统 Download PDF

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WO2021114649A1
WO2021114649A1 PCT/CN2020/100742 CN2020100742W WO2021114649A1 WO 2021114649 A1 WO2021114649 A1 WO 2021114649A1 CN 2020100742 W CN2020100742 W CN 2020100742W WO 2021114649 A1 WO2021114649 A1 WO 2021114649A1
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data
module
shield
real
time
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PCT/CN2020/100742
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French (fr)
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江玉生
郑春燕
杨志勇
江华
江涛
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南京城市地下空间工程研究院有限公司
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G11/00—Apparatus for weighing a continuous stream of material during flow; Conveyor belt weighers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G23/00—Auxiliary devices for weighing apparatus
    • G01G23/18—Indicating devices, e.g. for remote indication; Recording devices; Scales, e.g. graduated
    • G01G23/36—Indicating the weight by electrical means, e.g. using photoelectric cells
    • G01G23/37—Indicating the weight by electrical means, e.g. using photoelectric cells involving digital counting
    • G01G23/3728—Indicating the weight by electrical means, e.g. using photoelectric cells involving digital counting with wireless means

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  • the invention belongs to the technical field of subway tunnel construction application, and is specifically a belt weighing-based earth pressure balance shield excavation monitoring system.
  • the shield method is a construction method for digging a tunnel in the soil or rock layer below the surface. Since the French engineer Brunel invented the shield method in 1818, after more than one hundred years of application and development, the shield method can be applied to construction under any hydrogeological conditions, whether it is soft, hard, Shield tunneling can be used for underground tunnel projects with and without underground water.
  • Shield excavation directly reflects the loss of the ground after shield tunneling, and also closely affects the control of shield tunneling speed, total thrust, cutter head torque and other mechanical parameters. It is an important task of shield construction management to timely and accurately grasp the amount of excavated shield tunnels, and it is also an important means to ensure the stability of the excavation surface and control the surface settlement.
  • the monitoring and management of the amount of excavation in subway construction at home and abroad is basically the estimation and measurement of the construction personnel.
  • the method of "counting the earth and bucket" is used through experience. Obviously, this method has too many human factors, not only the accuracy is difficult to control, but the calculation method is rough. The error is large, and the construction is seriously delayed.
  • a new laser belt weigher cross-section scanning unearth measurement was proposed. However, this scheme is subject to many external environmental interference factors and poor maintenance factors.
  • the technical problem to be solved by the present invention is that in the existing subway construction, the real-time measurement of the excavation amount of the shield machine is not enough, and the staff cannot timely and effectively grasp the excavation amount and the excavation situation of the shield machine.
  • the technical scheme of the present invention is: an earth pressure balance shield unearth monitoring system based on belt weighing, including a bottom communication module, a data acquisition module, a data management module, a calculation analysis module, and an interface display and operation module,
  • Bottom communication module used to communicate with the shield machine's main controller PLC and weighing system through the communication protocol of the shield machine's PLC system;
  • Data collection module used to collect real-time operating data of the shield machine, and at the same time collect data from the weighing system in real time, and send it to the data management module;
  • Data management module Receive data sent by the data collection module, used to store the received data in a queue mode, pass the data to the calculation and analysis module through events, and store the result data generated by the calculation and analysis module;
  • Calculation analysis module used to calculate the real-time excavation volume and shield machine propulsion stroke according to the weighing system data and the real-time operation data of the shield machine, and analyze the rationality of the real-time excavation volume and shield machine propulsion stroke according to the set threshold, The analysis results are transmitted to the interface display and operation module in the form of graphs and values;
  • Interface display and operation module used to receive and display the graphs and numerical data of the calculation analysis module, and provide a human-computer interaction interface.
  • the interface display and operation module adopts WPF as the UI framework.
  • the data stored in the data management module is externally transmitted to the remote monitoring platform.
  • the invention proposes a shield machine excavated volume monitoring and management system based on belt scale weighing.
  • the electronic belt scale can measure the instantaneous flow rate and cumulative amount of materials passing through the belt conveyor without interrupting the material flow, with an error accuracy of less than 3%, that is, the weighing error of the unearthed amount of each ring is within 3%, and has High stability, less equipment modification, simple follow-up maintenance, is the most popular measurement method.
  • the main improvements of the system of the present invention include:
  • Figure 1 is a functional schematic diagram of the system of the present invention.
  • the invention provides a belt weighing-based earth pressure balance shield unearth monitoring system, which includes a bottom communication module, a data acquisition module, a data management module, a calculation analysis module, an interface display and operation module.
  • the shield machine PLC data and belt scale measurement data are input into the data management module through the data acquisition module through the bottom communication module, and then stored, and further calculated and analyzed by the calculation and analysis module, and the graphs and numerical data are obtained in real time on the interface.
  • the human-computer interaction interface of the display and operation module is displayed.
  • the operator can also use the human-computer interaction interface of the interface display and operation module to set the user settings of the monitoring system, such as time, calculation update frequency, etc.
  • the system of the present invention preferably adopts C#6.0 as the development language, MySQL as the database, and WPF as the UI framework.
  • the system is mainly divided into bottom communication module, data acquisition module, data management module, calculation analysis module, interface display and operation module.
  • Bottom communication module The communication objects of the system of the present invention are divided into two categories: the main controller PLC of the shield machine and the weighing system.
  • the communication with the shield machine mainly obtains the real-time operating data of the shield machine, and at the same time collects the weighing system data in real time for calculation analysis.
  • the bottom communication module is necessary to ensure the completion of communication.
  • the communication module covers the communication protocol of most shield machine PLC systems on the market. It can communicate with different shield machines through interface settings, and can support simultaneous communication with multiple PLC systems.
  • Data collection module The system of the present invention can obtain data through user settings and set automatic periodic collection methods, or use subscription methods to obtain data.
  • Automatic periodic collection can set the data collection cycle according to the needs to meet the needs under different working conditions; the subscription method uses a fixed cycle when the data changes, and the change data is subscribed and collected.
  • Data management module The system of the present invention manages the collected data in a queue and event manner.
  • the data of the shield machine PLC and weighing system have obvious characteristics of queue sorting according to time, so the queue type is adopted, the original data is stored through the queue, and the data is transferred to each data processing and analysis module through events, and the generated The result data is stored in the database.
  • the data management module is also used to send the stored data to the remote monitoring platform for remote monitoring.
  • the system of the present invention involves two types of data, and performs real-time data calculation and analysis on them.
  • the main function is to manage and monitor the relationship between the unearthed volume and the shield machine's advancing stroke, and perform rationality analysis.
  • the calculation and analysis module is to calculate the real-time unearthed volume based on the weighing system data and the real-time operation data of the shield machine. Analyze the rationality of the real-time excavation volume and the shield machine propulsion stroke according to the set threshold.
  • the analysis results are transmitted to the interface display and operation module in the form of graphs and values for display.
  • Interface display and operation module Microsoft's user interface framework WPF (Windows Presentation Foundation) is used as the UI framework to build a human-computer interaction interface.
  • WPF has the advantages of friendly interface, easy design, and smooth operation.
  • the main interface of the present invention is the display of data, the setting of the system and the setting of data parameters.
  • the data display is mainly based on charts, lists and data blocks. Through good human-computer interaction, real-time monitoring data and calculation analysis results can be displayed intuitively.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)

Abstract

基于皮带称重的土压平衡盾构出土量监控系统，包括底层通讯模块、数据采集模块、数据管理模块、计算分析模块和界面显示及操作模块。该监控系统用一种可靠的数字化手段计量并实时显示出土量，适应当前盾构精细化与信息化的施工需要；自动进行合理性分析，设置出土量预警，方便操作人员进行及时调整，保证盾构掘进的安全、稳定；将盾构出土量与盾构的掘进参数有机的结合并同步起来，从而实现动态地监控出土量的变化，达到实时监控与实时控制的目的，实现出土量与掘进参数的匹配，确保施工的安全。

Description

基于皮带称重的土压平衡盾构出土量监控系统 技术领域
本发明属于地铁隧道施工应用技术领域，具体为一种基于皮带称重的土压平衡盾构出土量监控系统。
背景技术
盾构法是在地表以下土层或岩层中暗挖隧道的一种施工方法。自1818年法国工程师布鲁偌尔(Brunel)发明盾构法以来，经过一百多年的应用与发展，盾构法能适用于任何水文地质条件下的施工，无论是松软的、坚硬的、有地下水的、无地下水的暗挖隧道工程都可用盾构法。
盾构出土量直接反映出盾构掘进后地层的损失情况，也密切影响着盾构的掘进速度、总推力、刀盘扭矩等机械参数的控制。及时准确地掌握盾构的出土量，是盾构施工管理的重要任务，也是确保开挖面稳定和控制地表沉降的重要手段。
目前国内外地铁施工中对于出土量的监控管理基本都为施工人员的估计测量，一般通过经验按“数土斗”的方法，显然该方式人为因素过多，不但精度难以控制，计算方式粗糙，误差较大，而且还严重滞后施工。随着电子技术的发展，新提出了激光皮带秤断面扫描出土量测量，但该方案受外界环境干扰因素多，维护因素差，另外还有核子秤出土量测量方法，也由于安生问题，应用受到管制，无法推广。
发明内容
本发明要解决的技术问题是：现有地铁施工中，盾构机的出土量测量实时性不够，不能及时有效的供工作人员掌握盾构机的出土量和掘进情况。
本发明的技术方案为：基于皮带称重的土压平衡盾构出土量监控系统，包括底层通讯模块、数据采集模块、数据管理模块、计算分析模块和界面显示及操作模块，
底层通讯模块：用于通过盾构机PLC系统的通信协议实现与盾构机主控器PLC和称重系统的通讯；
数据采集模块：用于采集盾构机实时运行数据，同时实时采集称重系统数据，并发送给数据管理模块；
数据管理模块：接收数据采集模块发送的数据，用于采用队列式方式对接收的数据进行存储，通过事件方式将数据传递给计算分析模块，并对计算分析模块产生的结果数据进行存储；
计算分析模块：用于根据称重系统数据和盾构机实时运行数据计算实时出土量和盾构机推进行程，并根据设定的阈值对实时出土量和盾构机推进行程进行合理性分析，分析结果以图表和数值的方式传送给界面显示及操作模块；
界面显示及操作模块：用于接收计算分析模块的图表和数值数据并进行显示，以及提供人机交互界面。
进一步的，界面显示及操作模块采用WPF作为UI框架。
进一步的，数据管理模块存储的数据对外传输给远程监控平台。
本发明提出一种基于皮带秤称重的盾构出土量监控管理系统。电子皮带秤可以在不中断物料流的情况下测量出皮带输送机上通过物料的瞬时流量和累积量，具有3％以内的误差精度，即每环出土量的称重误差在3％以内，并具有高稳定性，同时对设备改装较少，后续维护简单，是最具推广意义的一种计量方式。
本发明系统的主要改进包括：
第一，用一种可靠的数字化手段计量并实时显示出土量，适应当前盾构精细化与信息化的施工需要；
第二，将出土量可视化，方便各单位即时监控，随时随地直观察看；
第三，进行合理性分析，设置出土量预警，当出土量超限时及时警报，方便操作人员进行及时调整，保证盾构掘进的安全、稳定。
第四，将盾构出土量与盾构的掘进参数有机的结合并同步起来，从而实现动态地监控出土量的变化，达到实时监控与实时控制的目的，实现出土量与掘进参数的匹配，确保施工的安全。
附图说明
图1为本发明系统的功能示意图。
具体实施方式
本发明提出一种基于皮带称重的土压平衡盾构出土量监控系统，包括底层通讯模块、数据采集模块、数据管理模块、计算分析模块和界面显示及操作模块。如图1所示，盾构机PLC数据和皮带称计量数据通过底层通讯模块经数据采集模块输入数据管理模块，进行存储，并进一步由计算分析模块进行计算分析，得到图表和数值数据实时在界面显示及操作模块的人机交互界面进行展示，同时，操作人员还可通过界面显示及操作模块的人机交互界面进行对监控系统的用户设置，如时间、计算更新频率等。
下面具体说明本发明的实施。本发明系统优选采用C#6.0作为开发语言，采用MySQL作为数据库，并以WPF最为UI框架。系统主要分为底层通讯模块，数据采集模块，数据管理模块，计算分析模块，界面显示及操作模块。
底层通讯模块：本发明系统的通讯对象分为两大类：盾构机主控器PLC和称重系统。与盾构机通信主要获取盾构机实时运行数据，同时实时采集称重系统数据，进行运算分析。而底层通讯模块则是保证通讯完成的必要。通讯模块涵盖目前市面上大部分盾构机PLC系统的通信协议，可以通过界面设置实现与不同的盾构机通信，并可支持多个PLC系统同时通信。关于称重系统则主要有两类，一类是输送带称重，一类是渣土斗称重。两种称重模式也针对不用的应用场景，可以自由切换。
数据采集模块：本发明系统可以通过用户设置，设定自动周期采集的方式获取数据，或采用订阅的方式来获取数据。自动周期采集可根据需求自己设置数据采集的周期，满足不同工况下的需求；订阅方式则以一个固定周期当数据产生变化时，对变化数据进行订阅采集。
数据管理模块：本发明系统采用队列式和事件的方式对采集的数据进行管理。盾构机PLC及称重系统的数据有明显的依据时间进行队列排序的特征，故采用队列式，通过队列将原始数据存储，并通过事件将数据传递给各个数据处理分析模块，并对产生的结果数据存入数据库。同时，数据管理模块还用于将存储的数据发送给远程监控平台，供远程监控使用。
计算分析模块：本发明系统涉及到两类数据，并对它们进行实时数据计算和分析。作为出土量管理系统，主要的功能是管理和监控出土量和盾构机推进行程的关系，并进行合理性分析，计算分析模块就是根据称重系统数据和盾构机实时运行数据计算实时出土量和盾构机推进行程，并根据设定的阈值对实时出土量和盾构机推进行程进行合理性分析，分析结果以图表和数值的方式传送给界面显示及操作模块，进行展现。
界面显示及操作模块：采用微软的用户界面框架WPF(Windows Presentation Foundation)作为UI框架搭建人机交互界面，WPF具有界面友好，易于设计，运行流畅的优点。本发明主要的界面是对数据的展示、系统的设置和数据参数设置。数据展示以图表、列表和数据块为主。通过良好的人机交互，能够直观的展现实时监控数据和计算分析结果。

Claims (3)

  1. 基于皮带称重的土压平衡盾构出土量监控系统，其特征是包括底层通讯模块、数据采集模块、数据管理模块、计算分析模块和界面显示及操作模块，
    底层通讯模块：用于通过盾构机PLC系统的通信协议实现与盾构机主控器PLC和称重系统的通讯；
    数据采集模块：用于采集盾构机实时运行数据，同时实时采集称重系统数据，并发送给数据管理模块；
    数据管理模块：接收数据采集模块发送的数据，用于采用队列式方式对接收的数据进行存储，通过事件方式将数据传递给计算分析模块，并对计算分析模块产生的结果数据进行存储；
    计算分析模块：用于根据称重系统数据和盾构机实时运行数据计算实时出土量和盾构机推进行程，并根据设定的阈值对实时出土量和盾构机推进行程进行合理性分析，分析结果以图表和数值的方式传送给界面显示及操作模块；
    界面显示及操作模块：用于接收计算分析模块的图表和数值数据并进行显示，以及提供人机交互界面。
  2. 根据权利要求1所述的基于皮带称重的土压平衡盾构出土量监控系统，其特征是界面显示及操作模块采用WPF作为UI框架。
  3. 根据权利要求1所述的基于皮带称重的土压平衡盾构出土量监控系统，其特征是数据管理模块存储的数据对外传输给远程监控平台。
PCT/CN2020/100742 2019-12-14 2020-07-08 基于皮带称重的土压平衡盾构出土量监控系统 WO2021114649A1 (zh)

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CN109184709A (zh) * 2018-10-29 2019-01-11 幸智军 一种盾构设备施工出渣监控管理系统及方法
CN110954196A (zh) * 2019-12-14 2020-04-03 南京城市地下空间工程研究院有限公司 基于皮带称重的土压平衡盾构出土量监控系统

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