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Preventive levelling active-underpinning device and construction method

A preventive and active technology, applied in infrastructure engineering, infrastructure testing, construction, etc., can solve problems such as construction complexity, inability to accurately quantify the adverse effects of foundation pits, and achieve the effect of avoiding impacts

Inactive Publication Date: 2020-03-31
上海天演建筑物移位工程股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The adverse impact of excavation of foundation pits and tunnels on building foundations and foundations is a continuous activity with a relatively long time span. Simply adopting conventional passive reinforcement measures can only reduce the impact of excavation on buildings. , it is impossible to completely avoid the impact of excavation on the building, and especially the complexity of the construction, the conventional passive underpinning and reinforcement cannot accurately quantify the adverse impact of the foundation pit on it

Method used

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  • Preventive levelling active-underpinning device and construction method
  • Preventive levelling active-underpinning device and construction method
  • Preventive levelling active-underpinning device and construction method

Examples

Experimental program
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Effect test

Embodiment 1

[0037] Figure 1-Figure 4 It shows a preventive levelable active underpinning device, which includes a real-time monitoring device 1, a horizontal tray structure 2, a vertical reaction force structure 3 and an active leveling structure 4,

[0038] The upper end of the vertical reaction force structure 3 passes through the horizontal tray structure 2 and is connected to the output end of the active leveling structure 4,

[0039] Both the real-time monitoring device 1 and the active leveling structure 4 are electrically connected to a controller.

[0040] The real-time monitoring device 1 includes sensors and storage devices, and the monitoring contents include settlement, inclination, and crack status.

[0041] The horizontal tray structure 2 is at least one of steel and reinforced concrete.

[0042] The horizontal pallet structure 2 is a pile type or a column type.

[0043] The vertical reaction force foundation 3 is at least one of steel and reinforced concrete.

[0044] ...

Embodiment 2

[0046] Figure 1-Figure 4 A construction method of a preventive leveling active underpinning device is shown, the method includes the following steps:

[0047] Step 1, install and debug the real-time monitoring device 1, install the real-time monitoring device 1 on the building, and monitor the health status of the whole process of the building;

[0048] Step 2, constructing the horizontal pallet structure 2, and fixing the horizontal pallet structure 2 on the lower end of the building;

[0049] Step 3, constructing the vertical reaction force foundation 3, passing one end of the vertical reaction force foundation 3 through the horizontal pallet structure 2;

[0050] Step 4, install and debug the active leveling device 4, install the active leveling device 4 on the upper end of the horizontal pallet 2, and the building enters the levelling active underpinning state,

[0051] Step 5: Analyze the changes of the real-time monitoring data through the controller, judge the state ...

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Abstract

The invention discloses a preventive levelling active-underpinning device. The device comprises a real-time monitoring device, a horizontal tray structure, a vertical counter-force structure and an active levelling structure. The upper end of the vertical counter-force structure penetrates through the horizontal tray structure and is connected with an output end of the active levelling structure,and the real-time monitoring device and the active levelling structure are electrically connected with a controller. The basic principle of the construction method comprises the steps that a preventive active-underpinning measure is taken before a foundation pit or a tunnel is dug, the health status of a building is monitored anytime in the process of digging the foundation pit or the tunnel, theinfluence degree is judged according to data, and a levelling device can be started anytime for taking the active-underpinning measure. According to the device, the negative influence of digging on the building is reduced. The influence degree and tendency of digging on the building are judged, the active levelling device is started anytime, the original state of the building is maintained, and the influence of digging on the building can be completely controlled even avoided.

Description

technical field [0001] The invention relates to the technical field of building underpinning, in particular to a preventive and levelable active underpinning device and a construction method. Background technique [0002] The excavation of the foundation pit adjacent to the building and the excavation of the tunnel passing through the building will inevitably cause disturbance to the foundation and foundation of the building, which will have an adverse impact on the building and cause damage such as building settlement, inclination, and cracking. [0003] Conventional treatment measures are grouting on the outside or inside of the building to reinforce the foundation, and pressing piles inside the building to reinforce the foundation and foundation bearing capacity of the building. [0004] The adverse impact of excavation of foundation pits and tunnels on building foundations and foundations is a continuous activity with a relatively long time span. Simply adopting conventi...

Claims

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Application Information

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IPC IPC(8): E02D35/00E02D33/00
CPCE02D33/00E02D35/005
Inventor 王建永刘春浩彭勇平束学智章柏林黄军蓝戊己邱会安
Owner 上海天演建筑物移位工程股份有限公司
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