Indoor model test device capable of simulating slurry balance shield construction and use method thereof

An indoor model and test device technology, applied in underground chambers, shaft equipment, earthwork drilling and other directions, can solve the problems of difficulty in studying the influence of the cutter head, and the simulation test is too simple, and achieves a simple and convenient test device, low test cost, Accurate effect

Inactive Publication Date: 2013-12-11
TONGJI UNIV
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The above test devices are all tested by a circulation system composed of two mud tanks and a hydraulic jack. The simulation test is too simple, and it is diffi

Method used

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  • Indoor model test device capable of simulating slurry balance shield construction and use method thereof
  • Indoor model test device capable of simulating slurry balance shield construction and use method thereof
  • Indoor model test device capable of simulating slurry balance shield construction and use method thereof

Examples

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Embodiment

[0045] An indoor model test device that can simulate mud-water balance shield construction, such as Figure 1 to Figure 6 As shown, the device includes an earth-digging propulsion mechanism, a circulation mechanism and a grouting mechanism, wherein,

[0046] The earth-digging propulsion mechanism includes a motor 3, a reducer 2, a shield casing 14, a main shaft 18, and a coil 16. The motor 3 is connected to the reducer 2, and a partition 29 is provided inside the shield casing 14, and the shield casing 14 is provided with a cutter head 15, the shield tank is located between the cutter head 15 and the partition 29, the blade 30 is embedded in the cutter head 15, one end of the main shaft 18 passes through the reducer 2, and the other end is connected to the cutter head 15 connection, the coil 16 is sleeved on the main shaft 18, one end of the coil 16 is located on the main shaft 18 between the shield casing 14 and the reducer 2, and the other end of the coil 16 goes deep into t...

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Abstract

The invention relates to an indoor model test device capable of simulating slurry balance shield construction and a use method thereof. The indoor model test device comprises a digging propulsion mechanism, a circulation mechanism and a slurry injection mechanism, wherein the digging propulsion mechanism comprises an electric motor, a speed reducer, a shield shell, a main shaft and a rotary pipe, the circulation mechanism comprises a circulation tank, a micro water pump, a water inlet pipe, a mud outlet pipe and a pressure regulating pipe, and the slurry injection mechanism comprises a slurry injection tank, a slurry tank, a mini compressor, a pneumatic pressure tube, a slurry injection pipe and a slurry injection head. Compared with the prior art, the indoor model test device has the advantages that a whole construction process, such as dynamic digging propulsion, pipe sheet assembly and wall back grouting, of a slurry balance shield construction machine can be simulated, more accurate and real experimental data can be provided for the design of all parameters for actual shield tunneling construction, and the safety during actual construction is guaranteed.

Description

technical field [0001] The invention relates to a simulation test device for shield construction and a use method thereof, in particular to an indoor model test device capable of simulating mud-water balance shield construction and a use method thereof. Background technique [0002] With the rapid development of urban subway construction in my country, more and more shield tunnels pass through complex strata with uneven softness and hardness, and high-rise buildings. In order to minimize the impact of soil disturbance on the strata and buildings along the line To ensure the safety of construction, it is necessary to ensure the stability of the excavation surface of shield tunneling. [0003] The mud-water balance shield injects muddy water into the sealed compartment of the excavation face, and the muddy water is pressurized and external pressure is balanced to ensure the stability of the soil on the excavation face. However, the geotechnical engineering problems are complex ...

Claims

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Application Information

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IPC IPC(8): E21D9/06E21D11/00
Inventor 徐前卫朱合华唐卓华蔡永昌李晓军庄晓莹
Owner TONGJI UNIV
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