Laboratory Test on Abrasion Behavior of Slurry Shield
Pipe in Muck Slurry

doi:10.3973/j.issn.2096-4498.2022.01.009

Tunnel Construction ›› 2022, Vol. 42 ›› Issue (1): 66-74.DOI: 10.3973/j.issn.2096-4498.2022.01.009

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Laboratory Test on Abrasion Behavior of Slurry Shield Pipe in Muck Slurry

GAN Congyu¹, HUANG Zimu², LIU Hongzhi¹, LI Xinggao^{2, *}, YANG Yi²

(1. CCCC Tunnel Engineering Company Limited, Beijing 100044, China; 2. Key Laboratory of Urban Underground Engineering of Ministry of Education, Beijing Jiaotong University, Beijing 100044, China)

Online:2022-01-20 Published:2022-01-28

Abstract

Abstract: A laboratory test is conducted using a selfdeveloped test device to determine the abrasion law of slurry shield pipe materials in muck slurry. On the target material, the abrasion influence of the slurry viscosity, the rock grain volume fraction, the slurry relative static pressure, the slurry flow velocity, and impact direction is analyzed. The test results show the following: (1) The effect of the slurry viscosity within the allowance on abrasive characteristics of the muck slurry with small grain size can be ignored. (2) When the slurry flow velocity is high, the abrasion effect of muck slurry increases as the rock grain volume fraction increases. (3) The slurry static pressure has a significant effect on the abrasion of muck slurry with small grain size. (4) The abrasion rate of steel sheets vertical to the rotation direction is higher than that of sheets parallel to the rotation direction.

Key words: slurry shield, muck slurry, quartz grain, abrasion characteristics, laboratory test

CLC Number:

U 451⁺.5

GAN Congyu, HUANG Zimu, LIU Hongzhi, LI Xinggao, YANG Yi. Laboratory Test on Abrasion Behavior of Slurry Shield Pipe in Muck Slurry[J]. Tunnel Construction, 2022, 42(1): 66-74.

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Laboratory Test on Abrasion Behavior of Slurry Shield Pipe in Muck Slurry

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