Evidence map›Paper›PMID 39948361›Full record

ArticleScientific reports2025

CFD-DEM simulation of the motion law of magnetic flocs during waste slurry disposal in shield tunnel.

Kaichen Ying, Yuxiang Xing, Wei Zhang, Xingfei Chen, Zhigang Yao, Yong Fang, Jian Cui, Lifeng Wei

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Scientific reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

2 citing papers in PubMed.

  1. Article
  2. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors.

Kaichen YingState Key Laboratory of Intelligent Geotechnics and Tunnelling, Southwest Jiaotong University, Chengdu, 610031, China.
Yuxiang XingState Key Laboratory of Intelligent Geotechnics and Tunnelling, Southwest Jiaotong University, Chengdu, 610031, China.
Wei ZhangRailway 14Th Bureau Group, Shield Engineering Co., Ltd, Nanjing, 211800, China.
Xingfei ChenRailway 14Th Bureau Group, Shield Engineering Co., Ltd, Nanjing, 211800, China.
Zhigang YaoState Key Laboratory of Intelligent Geotechnics and Tunnelling, Southwest Jiaotong University, Chengdu, 610031, China. bk20110739@my.swjtu.edu.cn.
Yong FangState Key Laboratory of Intelligent Geotechnics and Tunnelling, Southwest Jiaotong University, Chengdu, 610031, China. fy980220@swjtu.cn.
Jian CuiRailway Engineering Research Institute, China Academy of Railway Sciences Group Co., Ltd, Beijing, 100081, China.
Lifeng WeiState Key Laboratory of Intelligent Geotechnics and Tunnelling, Southwest Jiaotong University, Chengdu, 610031, China.

Funding

the National Natural Science Foundation of China 52408441the National Science Fund for Distinguished Young Scholars 52425807the Postdoctoral Fellowship Program of CPSF GZC20232194the Sichuan Youth Science and Technology Innovation research team project 2024NSFTD0013
6 · The paper itself

Abstract

The sustainable treatment and reuse of waste slurry in slurry shield construction have gained significant attention. This paper explores the application of magnetic flocculation technology for treating slurry. The CFD-DEM coupling method simulates the migration of magnetic flocs during centrifugation. Two evaluation indexes of magnetic content of floc residue (MCFR) and magnetic seed recovery rate (MSRR) are introduced. The study examines how magnetic seed concentration, feed rate, and differential speed affect floc movement, magnetic seed separation, and recovery, proposing directions for optimizing separation technology. Due to computational limitations, the simulation focuses exclusively on the process from floc entry into the decanter centrifuge to its exit at the drum's end. Results indicate that changes in centrifugal parameters significantly affect floc movement, with feed rate showing the strongest positive correlation with MSRR, followed by differential speed. As magnetic seed concentration increases, both MCFR and MSRR rise. However, when concentration becomes too high, MSRR begins to decrease. Feed rate strongly influences magnetic floc behavior, with MCFR and MSRR showing complementary trends. Through the transformation of the separation equipment, the MSRR can be increased to 93.4%.

Indexed as

CFD-DEMMagnetic flocculationMagnetic seed separationSlurry shieldSlurry treatment

Identifiers

PMID39948361
PMCPMC11825738

What OpenQuestion holds

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LicenceCC BY-NC-ND
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.