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A full-section pouring monitoring system and monitoring method

A monitoring system and full-section technology, applied in the direction of measuring devices, force/torque/work measuring instruments, instruments, etc., can solve the problems of high stress on the formwork system, achieve the effect of ensuring quality, improving dimensional accuracy, and ensuring dimensional accuracy

Active Publication Date: 2021-07-27
CCCC FOURTH HARBOR ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to aim at pouring the immersed tube section by adopting the full-section pouring construction technology, due to the large volume of concrete poured at one time, the formwork system is subject to a large force and is prone to instability, displacement or even destruction. Problems that affect the pouring quality of immersed tubes provide a full-section pouring monitoring system and monitoring method. The monitoring system can effectively eliminate the inelastic deformation of the formwork system and reduce the number of templates through the preload monitoring of the template system and real-time monitoring during the pouring process. The impact of the elastic deformation of the system on the pouring quality of the immersed tube ensures the smooth completion of the full-section pouring process and avoids damage to the formwork system that affects the quality and safety of the immersed tube prefabrication

Method used

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  • A full-section pouring monitoring system and monitoring method
  • A full-section pouring monitoring system and monitoring method
  • A full-section pouring monitoring system and monitoring method

Examples

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Effect test

Embodiment 1

[0093] This embodiment provides a monitoring system for full-section pouring of immersed tube segments.

[0094] like figure 1 and figure 2 As shown in the figure, the immersed tube structure is a three-chamber structure, including the traffic lanes 1 on the left and right sides, and the middle corridor 2 in the middle. The immersed tube formwork system is used in the full-section pouring process of the immersed tube segment, including the pouring formwork 3 and the formwork. Support system 4. The formwork support system 4 is used to support the pouring formwork 3. The pouring formwork 3 includes an outer mold 31 and an inner mold 32. The formwork support system 4 includes an outer mold support system 41 and an inner mold support system 42. This embodiment The full-section pouring monitoring system of the example includes the preload monitoring of the formwork system and the real-time monitoring of the formwork system during the pouring process. The real-time monitoring incl...

Embodiment 2

[0100] This embodiment provides a preload monitoring method for full-section pouring. During the full-section pouring process, the formwork system will be subjected to a large load and there will be large deformation, including elastic deformation and inelastic deformation. Apply preload load for preload monitoring, eliminate the inelastic deformation of the formwork system, and measure the elastic deformation of the formwork system after being subjected to construction loads, and the bearing capacity and stability of the formwork system can be checked through preload monitoring. The pour monitoring system includes preload monitoring of the formwork system.

[0101] The preload monitoring method for full-section pouring includes the following steps:

[0102] a. Assemble the formwork system, and arrange multiple monitoring points on the pouring formwork;

[0103] b. Apply preloading load, adopt equal load preloading, divide the preloading area into several preloading units and...

Embodiment 3

[0116] The present embodiment provides a monitoring method for the full-section pouring construction process of the immersed tube section. The monitoring method, as a part of the full-section pouring monitoring system, includes the following implementation steps:

[0117] a. Measurement preparation, including establishing monitoring benchmarks;

[0118] b. Adjust the position of the formwork system, and arrange a plurality of monitoring points on the pouring formwork and the formwork support system respectively, and each monitoring point on the formwork support system is provided with a stress sensor, and the stress sensor is connected to the a data display and analysis system, the data display and analysis system is used for receiving the data of the stress sensor and performing summarization, analysis and display, and the data display and analysis system is preset with an early warning value obtained according to the template support system structure;

[0119] c. Collect the...

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Abstract

The invention discloses the technical field of immersed tube tunnel construction, and in particular relates to a full-section pouring monitoring system and a monitoring method. The full-section pouring monitoring system of the present invention includes preload monitoring of the formwork system and real-time monitoring of the formwork system during the pouring process , the formwork system includes a pouring formwork and a formwork support system, the real-time monitoring includes position monitoring of the pouring formwork and real-time stress monitoring of the formwork support system, and the position monitoring includes initial position monitoring before pouring, after pouring is completed The final position monitoring and the relative displacement relationship determined by the final position and the starting position can effectively eliminate the inelastic deformation of the formwork system and measure the elastic deformation through preload monitoring. Through real-time monitoring of the formwork system, the pouring formwork can be adjusted in time Reserve the amount of change and ensure the smooth completion of the full-section pouring construction process to ensure the quality and safety of the project.

Description

technical field [0001] The invention relates to the technical field of immersed tube tunnel construction, in particular to a full-section pouring monitoring system and monitoring method. Background technique [0002] During the construction of immersed tube tunnels, the immersed tube structures are mostly mass concrete. Due to the large temperature field and stress field involved, there are great requirements for the control of the immersed tube pouring process and the formwork system. In order to effectively control the temperature field and stress field , in the prior art, layered and segmented precast concrete is mainly used for pouring, but the immersed tube poured by this process method will produce cracks at the layered connection after long-term use. Since the immersed tube is buried underwater, it is difficult to maintain the cracks Big, according to statistics: the 50-year maintenance cost of a 280-meter-long immersed tube tunnel to maintain cracks is about 5-10 mil...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01L5/00
CPCG01L5/00
Inventor 朱成张涛尹威陈健斌林晓越刘荣岗方钊佳刘轩源岳祥韦浪伍昌易卫军
Owner CCCC FOURTH HARBOR ENG CO LTD
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