Steel shotcrete support internal force self-compensation, displacement control system and control method
A technology of displacement control and automatic compensation, which is applied in excavation, construction, infrastructure engineering, etc., can solve the timely control of unfavorable support structures and deformation requirements of the surrounding environment, and cannot meet the stringent requirements of subway deformation and settlement. No research has been found Methods, research results or products, etc., to achieve the effects of reducing human resource costs, facilitating construction, and achieving significant social benefits
A technology of displacement control and automatic compensation, which is applied in excavation, construction, infrastructure engineering, etc., can solve the timely control of unfavorable support structures and deformation requirements of the surrounding environment, and cannot meet the stringent requirements of subway deformation and settlement. No research has been found Methods, research results or products, etc., to achieve the effects of reducing human resource costs, facilitating construction, and achieving significant social benefits
CN101294389AInactive Publication Date: 2008-10-29CSCEC INT CONSTR +1
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[0018] Construction process of the present invention is as follows:
[0019] 1. The hydraulic pump station is in place, the PLC control system is in place, and the upper system is in place;
[0020] 2. Following the excavation progress of the building foundation pit, install steel supports, hydraulic jacks, and pressure sensors.
[0021] 3. On-site wiring to realize circuit signal communication connection and hydraulic oil circuit connection.
[0022] 4. The automatic control system starts to work.
[0023] 5. Through parameter adjustment in the automatic control software interface of the upper system, the pressure adjustment of the steel support axial force is realized.
[0024] 6. After the adjustment of the axial pressure of the steel support meets the design requirements, it enters the automatic control state (pressure maintaining state).
[0025] In the process of automatic control of steel support axial force, under normal circumstances, unattended monitoring and cont...
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The invention belongs to the building support component technology field including the stress automatic control and monitoring as well as the structural safety, and relates to a steel tube supporting internal force automatic compensating and displacement controlling system. The system comprises an upper system, a PLC control system module and a field executive system. A steel support is arranged on a reinforced concrete diaphragm wall, a hydraulic jack is arranged on the steel support, and real time pressure monitoring values are fed back through a pressure sensor. The steel support and the hydraulic jack form a pre-stressed steel support structure, the hydraulic jack is connected with a hydraulic pump station through an oil circuit, and is connected with the PLC control system module through the pressure sensor, the hydraulic pump station is connected with the PLC control system module, and a PLC controlling device is connected with the upper system. Through auto-control software and a PLC control system, the automatic control to the axial force of the steel support is realized, thereby controlling the displacement and the settlement of the deep excavation supporting structure and the adjacent basic facilities.
Description
technical field [0001] The invention belongs to the structural safety technical field of force automatic control and monitoring technology of building support components, and in particular relates to an automatic compensation and displacement control system for internal force of steel support. Specifically, it uses the "rigid ground connection wall theory" to realize the automatic control and monitoring of the axial force of the steel support through this system to ensure that the axial force of the steel support strictly meets the design requirements and actual engineering needs, and combines the foundation pit safety and health monitoring system in real time Feedback on the safety status of the foundation pit support structure, through the comprehensive judgment of experts, continuously optimize the design plan, and achieve the goal of safe and smooth implementation of the project. Background technique [0002] With the increasing scale of urban construction, urban infrast...
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Patent Timeline
29 Oct 2008
Publication
CN101294389A
- IPC
- E02D17/02; E02D17/04; E02D17/20
- Inventors
- 邓明胜; 史志强