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Self-adaptive real-time compensation system for steel support axial force during deep foundation ditch construction and method thereof

A technology of real-time compensation and steel support, which is applied in infrastructure engineering, excavation, comprehensive factory control, etc., can solve problems such as lowering and wall displacement, and achieve the effects of convenient use, reduced deformation, and perfect safety and protection systems

Active Publication Date: 2010-10-27
SHANGHAI CONSTRUCTION GROUP
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Problems solved by technology

However, during construction, as time goes by, the prestress added to the steel support will decrease, sometimes by a lot, even by more than 50%, and it is difficult to apply the supporting axial force on the steel support at this time , so it is easy to cause wall displacement

Method used

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  • Self-adaptive real-time compensation system for steel support axial force during deep foundation ditch construction and method thereof
  • Self-adaptive real-time compensation system for steel support axial force during deep foundation ditch construction and method thereof
  • Self-adaptive real-time compensation system for steel support axial force during deep foundation ditch construction and method thereof

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Embodiment Construction

[0028] The system and method for self-adaptive real-time compensation of steel support axial force for deep foundation pit construction of the present invention will be further described in detail below.

[0029] see figure 1 , figure 1 Shown is a structural schematic diagram of a specific implementation of the steel support axial force adaptive real-time compensation system for deep foundation pit construction according to the present invention. This deep foundation pit construction steel support axial force adaptive real-time compensation system includes: 6 on-site control stations 4, 18 hydraulic proportional servo control pumping station devices 5, 72 detection elements, 1 operating station 3 and 1 monitoring station 2. The on-site control station 4 , the operation station 3 and the monitoring station 2 are connected and communicated through the CAN bus 1 . CAN bus 1 (that is, Controller Area Network, controller area network) belongs to the category of field bus. It is ...

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Abstract

The invention discloses a self-adaptive real-time compensation system for a steel support axial force during deep foundation ditch construction and a method thereof. The compensation system comprises a plurality of field control stations, a plurality of hydraulic proportion servo control pump station devices, a plurality of detecting elements, an operation station and a monitoring station, wherein the field control stations, the operation station and the monitoring station are connected and communicated through a CAN bus; each field control station is connected with the plurality of the hydraulic proportion servo control pump station devices; the hydraulic proportioning servo control pump station devices comprise hydraulic pump stations and a plurality of jacks, and the hydraulic pump stations are respectively connected with the jacks and control the jacks to hold up corresponding steel supports; each detecting element respectively detects the operating situation of the jacks and feeds information back to the field control stations to which the jacks belong; and the monitoring station and the operation station monitor the real-time operating situations of the hydraulic pump stations and set the operating parameters of the jacks. The invention can realize real-time compensation of the steel support axial force during deep foundation ditch construction so as to reduce the deformation of a foundation ditch.

Description

technical field [0001] The invention belongs to the field of deep foundation pit construction, in particular to an adaptive real-time compensation system and method for steel support axial force in deep foundation pit construction. Background technique [0002] With the rapid development of urban rail transit and the extreme shortage of land resources, the number of deep foundation pit projects adjacent to the subway is increasing. We have to face a problem, the safety of the subway. At present, the excavation of foundation pits has tended to be large-scale and deep, and the construction is mostly based on the method of open excavation. As we all know, the construction of deep foundation pits is often accompanied by strong environmental effects. If strict deformation control is carried out, the adjacent subway will affect its normal use due to large deformation, and even cause accidents in severe cases. The economic losses and social impact caused are immeasurable. Therefo...

Claims

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Application Information

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IPC IPC(8): E02D17/04G05B19/418
CPCY02P90/02
Inventor 顾国明王正平陆云吕达
Owner SHANGHAI CONSTRUCTION GROUP
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