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Multifunctional adit heading machine simulation test platform and use method thereof

A technology of simulation test and roadheader, which is applied in the field of tunneling, can solve the problems of large scale difference and achieve the effect of highlighting the mechanical characteristics, high applicability, and simplifying the form of the main tunnel

Pending Publication Date: 2022-03-22
CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the above-mentioned technical problems, the present invention proposes a multifunctional branch tunnel boring machine simulation test platform and its use method to solve the problem that the scaled-down test in the prior art is quite different from the actual situation.

Method used

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  • Multifunctional adit heading machine simulation test platform and use method thereof
  • Multifunctional adit heading machine simulation test platform and use method thereof
  • Multifunctional adit heading machine simulation test platform and use method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2

[0077] Example 2, such as Figure 14~Figure 18 As shown, the difference between it and Embodiment 1 is that the boring equipment is a boring machine 13, the inner cover plate 404 of the imitation pressure housing 4 is omitted, the working end of the boring machine 13 is inserted into the starting sleeve 5, and the sealing assembly 6 passes through the The wire brush 601 closely adheres to the working end of the roadheader 13 to play a sealing role to prevent the pressure body 9 from flowing out; inject the pressure body 9 into the imitation pressure shell 4 to check the performance of the excavation equipment under different buried depths, and obtain the specific excavation parameters of the equipment. Optimize equipment deficiencies. And by changing the form of the bench, it can meet the simulation tests of branch tunnel boring machines in different directions, which can be recycled and reprocessed, reducing the test cost, and realizing multi-directional simulated branch tunn...

Embodiment 3

[0078] Example 3, such as Figure 19 As shown, the difference between it and Embodiment 1 is that the outer cylinder 402 of the imitation pressure shell 4 and the starting sleeve 5 are merged into a straight sleeve 15 and penetrated on the cutting opening 102 of the composite segment 1, and the cutting opening The inner wall of the circular port at the bottom of 102 is provided with multiple water-tight sealing parts 14, which reduces the difficulty of manufacturing, prevents the problem that the special-shaped interface cannot be welded and sealed, the device is simpler, and the test is more convenient.

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Abstract

The invention provides a multifunctional adit heading machine simulation test platform which comprises a rack and a main tunnel model formed by composite pipe pieces, and cutting openings are formed in the composite pipe pieces; the adit model is arranged on the cutting opening and comprises a pressure simulating structure simulating formation pressure and a starting sleeve arranged at the bottom of the pressure simulating structure; and the tunneling equipment arranged below the starting sleeve is used for adit tunneling construction. The adit size is close to the real size, the performance parameters of equipment or a structure can be obtained without scale reduction test, and problems occurring in actual engineering are fed back more truly; the stress part of the main tunnel is intercepted to be connected with the rack, the form of the main tunnel is simplified, and the stress characteristic is highlighted; by injecting different pressure bodies, the soil body burial depth pressure in the tunneling process is simulated, the last several rings of pipe joints of the spliced adit are pushed, and the tunneling and splicing process of the adit with different burial depths is simulated; by arranging the annular retaining rods, the space of the main tunnel is fully utilized, and the retaining rods are coordinated with the oil cylinders to work, so that the branch tunnel is tunneled and spliced in order.

Description

technical field [0001] The invention relates to the technical field of excavation, in particular to a simulation test platform for a multifunctional branch tunnel boring machine and a method for using the same. Background technique [0002] With the rapid development of urban construction in our country, the sudden change of natural disasters, the goal of carbon neutrality and carbon peaking have inspired the construction of underground spaces such as urban underground pipe corridors, power tunnels, and water intake and drainage channels. [0003] Vertical pipe jacking technology is a new construction method, and the construction technology is immature. Similar technologies include vertical jacking method, upward tunneling shield method and horizontal pipe jacking method. Among them, the vertical jacking method is mainly used in the water intake and drainage pipeline projects along the coast and along the river, and has higher requirements on the properties of the soil. The...

Claims

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Application Information

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IPC IPC(8): G01M99/00G09B25/02G09B25/04
CPCG01M99/005G09B25/02G09B25/04
Inventor 朱毅毕程程白中坤王宁王亚威李洋李应飞李鹏张奇隆
Owner CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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