Split-type tbm cutter head joint characteristic scaling measurement method and system

A combined part and split-type technology, which is applied in tunnel engineering and underground engineering, can solve problems such as unexplained measurement methods for the coupling characteristics of the cutterhead joint surface, poor self-adaptation, complex devices, etc., and achieve reasonable simplification and strong versatility , Reliable and high-precision effect

Active Publication Date: 2021-07-27
TSINGHUA UNIV
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the device is too complex, poorly self-adaptive, and high in cost, and the method for measuring the coupling characteristics of the joint surface of the cutter head has not been elaborated.

Method used

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  • Split-type tbm cutter head joint characteristic scaling measurement method and system
  • Split-type tbm cutter head joint characteristic scaling measurement method and system
  • Split-type tbm cutter head joint characteristic scaling measurement method and system

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Embodiment Construction

[0041] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0042] First, if figure 1 As shown, the joint characteristic measuring device of the embodiment of the present invention consists of a scale split TBM cutterhead 1, a gantry device 2, a digital jack 3, a loading backing plate 4, a displacement meter 1 for a distributed cutterhead, and a cutterhead fixture device 5 , a supporting pier column 6 and an acquisition system.

[0043] The equivalent scaled cutter head is to calculate the proportional relationship between the original size of the cutter head and the scaled scale through...

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Abstract

The invention discloses a method and system for measuring the characteristic scale of the junction part of a split TBM cutterhead, wherein the method includes: modeling to obtain the original cutterhead model; simplifying the original cutterhead model to establish a simplified model of the cutterhead in scale, and Establish the overall static stiffness model of the scale split TBM cutter head; obtain the fractal dimension and fractal roughness of the joint according to the structure function method; obtain the theoretical normal stiffness of the joint according to the fractal dimension and fractal roughness, and pass the theoretical Calculate the theoretical tangential stiffness of the joint, and then calculate the Poisson's ratio; measure the experimental tangential stiffness and test shear modulus of the joint through the test, and correct the elastic modulus and normal stiffness; through the scaled split TBM knife The overall static stiffness model of the disc is fitted and the error is evaluated, and the characteristic parameters of the joint part of the original cutter disc are inverted. The method is easy to operate, accurate in measurement, and strong in adaptability, and can realize the test of joint surface characteristics of split TBM cutterheads with different structures, and the measurement cost is low.

Description

technical field [0001] The invention relates to the technical fields of tunnel engineering and underground engineering, and in particular to a method and system for measuring the characteristics of a split-type TBM cutter head junction in scale. Background technique [0002] Full-face rock tunnel boring machine (TBM) is a major equipment widely used in the construction of hard rock tunnels such as subways, railways, water conservancy, and highways. , the level of its manufacturing capacity represents the overall technical level of a country's equipment manufacturing industry to a certain extent. The TBM excavation environment and equipment structure are extremely complex and have high technical content. The cutter head system is located at the front end of the TBM and is the core component of the TBM. The supporting hob is at the forefront of the roadheader and directly interacts with the surrounding rock boundary. It has the functions of breaking rock, stabilizing the tunn...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/23
Inventor 张建富高鹏杜天宇冯平法吴志军郁鼎文
Owner TSINGHUA UNIV
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