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Prediction method of abrasiveness of tunnel boring machine TBM cuter

A prediction method and abrasiveness technology, which is applied in the direction of testing wear resistance, etc., can solve the problem of not being able to accurately predict the wear of the hob body, and achieve the effect of reducing maintenance and replacement costs

Inactive Publication Date: 2016-12-21
CHINA RAILWAY TUNNEL GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of the rock CAI value prediction method is that it can only qualitatively determine the abrasiveness of the rock to the hob, but cannot accurately predict the wear of a certain hob body in a certain type of rock

Method used

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  • Prediction method of abrasiveness of tunnel boring machine TBM cuter
  • Prediction method of abrasiveness of tunnel boring machine TBM cuter
  • Prediction method of abrasiveness of tunnel boring machine TBM cuter

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] Below in conjunction with accompanying drawing and specific embodiment, the embodiment of the present invention is described further;

[0030] A kind of shield TBM hob abrasiveness prediction method, concrete steps are as follows (hob TBM abrasiveness prediction experimental method flow chart is as follows figure 1 shown):

[0031] 1) Hob sample making

[0032] The hobs designed according to the site provided by different suppliers are based on the size of the hob cutter ring used on site, and the size of the cutter ring of the hob sample is reduced by 10 times. The other dimensions of the hob sample are based on the size of the cutter ring. , to carry out the design, the schematic diagram of the hob sample used in the experiment; as figure 2 As shown, ( figure 2 Middle, 1. Cutter shaft; 2. Flat key; 3. Cutter ring; 4. Washer; 5. Lock nut;)

[0033] Design 6 samples for each type of hob;

[0034] 2) Rock sample making

[0035] After the on-site physical explorat...

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Abstract

The invention discloses a prediction method of abrasiveness of a tunnel boring machine TBM cuter. The prediction method comprises the following steps: producing a test sample, measuring the sample, simulating a scene environment, simulating a cutter rock breaking abrasion process, and predicting the abrasiveness of a cutter according to experimental results. The abrasiveness of the cutter is predicated by using the method and combining with the actual situation on site, so that the on-site cutter use amount can be effectively predicted so as to predict the use cost of the cutter, and the cutter suitable for the ground construction of the section can be selected according to the on-site geologic situation.

Description

technical field [0001] The invention relates to the technical field of shield tunneling, in particular to a method for predicting the abrasiveness of a shield TBM hob. Background technique [0002] With the rapid development of the country's economic construction, various industries such as roads, railways, water conservancy, nuclear power, and urban rail transit are more and more widely used in tunnels. Due to the advancement of mechanized, automated, and intelligent construction technologies, shield tunneling (TBM) construction has become one of the most common construction methods for tunnel construction. During the TBM construction process of the shield machine, the maintenance, wear and replacement of hobs account for a large amount of tunnel construction costs. [0003] At present, there are many experimental methods for the abrasiveness (wear) of the shield TBM construction hob, among which the most well-known and recognized in the industry is the rock CAI value pred...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/56
CPCG01N3/56
Inventor 陈馈李凤远张兵韩伟锋杨延栋李星郭璐
Owner CHINA RAILWAY TUNNEL GROUP CO LTD
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