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Simulation system and experimental method for shield-method synchronous grouting

A technology of synchronous grouting and simulation system, applied in the direction of applying stable tension/pressure to test the strength of materials, measuring devices, instruments, etc., can solve the problems of limited on-site guidance, and achieve the convenience of experimental teaching, low investment cost, and use good effect

Inactive Publication Date: 2018-05-01
SOUTHWEST PETROLEUM UNIV
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a simulation system and experimental method for synchronous grouting of shield tunneling method in view of the problem of limited on-site guidance in the existing simulated shield tunneling method synchronous grouting experiment

Method used

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  • Simulation system and experimental method for shield-method synchronous grouting
  • Simulation system and experimental method for shield-method synchronous grouting
  • Simulation system and experimental method for shield-method synchronous grouting

Examples

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Embodiment 1

[0036] This embodiment discloses a simulation system for synchronous grouting by shield method, such as Figure 1-5 As shown, it includes a model device 1 and a propulsion device 2; the model device 1 is a container with an open upper end; the propulsion device 2 includes a pressurizing piston 21, and the pressurizing piston 21 is matched with the model device 1; The pressurizing piston 21 and the model device 1 together form a closed space for accommodating the mixed slurry of the experimental soil and the synchronizing slurry.

[0037] Specifically, as Figure 1-5 As shown, the model device 1 includes a sample tube 11 and a bottom plate 12, the sample tube 11 is a container with upper and lower ends open, the bottom plate 12 closes the lower end opening of the sample tube 11, the bottom plate 12 12 is detachably connected to the lower end of the sample cartridge 11 . The bottom plate 12 is made of steel and can be disassembled and installed through the screw holes in the f...

Embodiment 2

[0060] This embodiment is built on the basis of Embodiment 1, such as Image 6 , 7 As shown, the model device 1 further includes an embedded cylinder 14, the embedded cylinder 14 is detachably embedded in the interior of the sample cylinder 11 of the first embodiment, and the inner space of the embedded cylinder 14 is a cylinder body shape. The pressure piston 21 in Example 1 is also adapted accordingly, and is changed to a disc shape 27, which together form a closed container of the cylindrical space. The embedded cylinder 14 is made according to the standard size and is made of stainless steel; a water separation hole needs to be reserved for the position of the water separation valve, so that the cylindrical sample can be smoothly separated from water.

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Abstract

The invention belongs to the technical field of shield tunnel engineering simulation experiments, and concretely relates to a simulation system for shield-method synchronous grouting. The simulation system comprises a model device, a propulsion device, a monitoring device and a processing device. The invention also relates to an experimental method for shield-method synchronous grouting. The method comprises the following steps of (1) mixing an experiment soil body and a synchronous slurry to form a mixed slurry; (2) applying pressure on the mixed slurry until the mixed slurry is coagulated toform a test block; (3) acquiring experiment data of surface pressure and coagulation time of the mixed slurry; (4) analyzing the experiment data, and determining parameters of the test block. The invention aims to provide the simulation system and the experimental method for shield-method synchronous grouting aiming at the problem that an existing simulation shield method synchronous grouting experiment is limited in site instruction function. Through a simulated result obtained through the simulation system and the experimental method, a site instruction function is remarkably improved.

Description

technical field [0001] The invention belongs to the technical field of shield tunnel engineering simulation experiment, and in particular relates to a simulation system for synchronous grouting by shield method and an experiment method. Background technique [0002] Nowadays, the shield method has been widely used in the construction of urban subways, highways, drainage and other tunnel projects due to its advantages of small disturbance and fast excavation. In the construction of the shield method, with the advancement of the shield machine, a building gap will be formed between the soil mass and the segment, that is, the shield tail gap. In order to control the surface subsidence and prevent the segment from leaking water, it is necessary to fill these gaps while the segment is advancing, that is, synchronous grouting. [0003] Synchronous grouting is an important process in shield construction, and many experts at home and abroad have done a lot of research on its functi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/12
CPCG01N3/12G01N2203/0003G01N2203/0019G01N2203/0048
Inventor 张军伟黄新淼李雪
Owner SOUTHWEST PETROLEUM UNIV
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