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Tunnel lining concrete pouring quality control method and device

A quality control method, concrete technology, applied in the direction of tunnel lining, tunnel, shaft lining, etc., to achieve the effect of avoiding insufficient strength

Active Publication Date: 2019-05-03
北京鸿锐嘉科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a method and device for controlling the pouring quality of tunnel lining concrete to solve various quality problems in the construction process of lining concrete

Method used

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  • Tunnel lining concrete pouring quality control method and device
  • Tunnel lining concrete pouring quality control method and device
  • Tunnel lining concrete pouring quality control method and device

Examples

Experimental program
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Effect test

Embodiment 1

[0059] This embodiment provides a method for controlling the quality of tunnel lining concrete pouring, which can strictly control the lining concrete pouring process during the construction process, effectively avoiding insufficient strength, segregation, accumulation of aggregates, insufficient lining thickness, voids, cracks, etc. Quality issues include: methods to prevent concrete defects, methods to prevent concrete vault cavities, methods to protect end forms, methods to prevent over-vibration and displacement of trolleys, and methods to protect against overloads of trolleys.

[0060] Wherein, the method for preventing concrete defects specifically includes:

[0061] When the concrete pump truck 3 is turned on for lining concrete pouring, the trolley form composite sensor 27 is turned on at the same time; when the concrete contacts the pressure sensor in the trolley form composite sensor 27, the pressure sensor in the trolley form composite sensor 27 generates pressure Signal...

Embodiment 2

[0086] This embodiment provides a tunnel lining concrete pouring quality control device, which includes a height sensor, a water-cement ratio sensor, an end mold pressure sensor, a concrete pressure sensor, a concrete flow meter, a trolley vibration sensor, a trolley displacement sensor, and a platform Vehicle template composite sensor, support rod sensor, support point pressure sensor and control system.

[0087] The height sensor signal is connected to the controller of the control system for detecting the real-time height of concrete and sending the real-time height data of concrete to the controller of the control system; in this embodiment, the height sensor includes RPC height sensor 14 and waterproof board height sensor 15. The RPC height sensor is installed on the top of the RPC grouting pipe for grouting with mold, and the waterproof board height sensor is installed on the surface of the waterproof board, so that when in use, the RPC injection The slurry pipe is inserted...

Embodiment 3

[0117] This embodiment provides a method for installing a lining concrete quality control device, which is used to install the lining concrete quality control device as described in Embodiment 2, and is performed according to the following steps:

[0118] (1) Move the trolley to the position where the lining concrete needs to be poured;

[0119] (2) Install the concrete detection tube 7 on the upper pump tube 9 connected with the trolley template 10 through the upper pump tube clamp 8, connect the concrete flow meter 6 and the concrete pressure sensor 23 to the concrete detection tube 7, and then launch The signal line of the device 2 is connected with the concrete flow meter 6 and the concrete pressure sensor 23, the lower pump pipe 4 is connected to the concrete detection pipe 7 through the lower pump pipe clamp 5, and the lower end of the lower pump pipe 4 is connected to the concrete pump truck 3 ;

[0120] (3) Fix the waterproof board height sensor 15 on the waterproof board 12...

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Abstract

The invention discloses a tunnel lining concrete pouring quality control method and device. The tunnel lining concrete pouring quality control method comprises the steps that concrete pouring of sidewalls is carried out, and a concrete defect preventing method and a trolley excessive-vibration moving preventing method are triggered; and vault concrete is poured, a concrete vault cavitation preventing method and a trolley overloading preventing protection method are triggered, and an end formwork protection method is triggered when concrete reaches the position of an end formwork and extrudesan end formwork pressure intensity sensor during vault concrete pouring. According to the tunnel lining concrete pouring quality control method, through the concrete defect preventing method, the concrete vault cavitation preventing method, the end formwork protection method, the trolley excessive-vibration moving preventing method and the trolley overloading preventing protection method, the lining concrete pouring process can be strictly controlled in the construction process, and quality problems of concrete strength insufficiency, separation, aggregate stacking, lining thickness insufficiency, cavitation, cracking and the like are effectively avoided.

Description

Technical field [0001] The invention relates to the field of tunnels, in particular to a method and device for controlling the pouring quality of tunnel lining concrete. Background technique [0002] At present, the construction of domestic tunnels mostly adopts the new Austrian method. The New Austrian Method is to use millisecond blasting and smooth blasting technology to carry out full-face excavation and construction on the premise of making use of the bearing capacity of the surrounding rock itself, and to form a composite inner and outer two-layer lining to construct the tunnel body. Shotcrete, anchor rods, steel bars, steel supports, etc. as the outer support form, called the first flexible support, which is the support work that must be carried out immediately after the excavation of the tunnel. Because the in-situ stress contained in the mountain is redistributed due to the excavation of the tunnel, the tunnel space is kept stable by the hollow effect, that is to say, t...

Claims

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Application Information

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IPC IPC(8): E21D11/10E21F17/18
Inventor 佘海龙龚成明耿春雷
Owner 北京鸿锐嘉科技发展有限公司
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