Reuse of Drilling Waste Slurry as the Grouting Material for the Real-Time Capsule Grouting Technique

A large amount of waste slurry is generated during construction, but direct sedimentation and transportation increase construction costs. Improper treatment leads to ecological and environmental pollution. This paper proposes to reuse drilling waste slurry (DWS) as a raw material from a particular p...

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Main Authors: Chenlei Jiao, Yu Diao, Gang Zheng, Yongchao Liu, Jianyou Huang, Ying Zhang, Lejun Zhao
Format: Article
Language:English
Published: MDPI AG 2023-02-01
Series:Materials
Subjects:
Online Access:https://www.mdpi.com/1996-1944/16/4/1540
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author Chenlei Jiao
Yu Diao
Gang Zheng
Yongchao Liu
Jianyou Huang
Ying Zhang
Lejun Zhao
author_facet Chenlei Jiao
Yu Diao
Gang Zheng
Yongchao Liu
Jianyou Huang
Ying Zhang
Lejun Zhao
author_sort Chenlei Jiao
collection DOAJ
description A large amount of waste slurry is generated during construction, but direct sedimentation and transportation increase construction costs. Improper treatment leads to ecological and environmental pollution. This paper proposes to reuse drilling waste slurry (DWS) as a raw material from a particular project as a grouting material for the real-time capsule grouting technique (RCG) to replace cement grouting material. This not only deals with DWS but also solves the material demand of RCG. An orthogonal experimental design evaluated the performance of the DWS grouting material (DWS-GM). The five levels for the three factors of this experiment were selected, including the fluidity, bleeding rate, initial setting time, and compression strength. A linear model, support vector machines, and neural networks were used to construct regression models, and the effects of different contents of cement, bentonite, and fly ash on the DWS-GM performance were analyzed. The SVM regression model had better performance in describing the laws of fluidity, bleeding rate, and 28-day compressive strength. Furthermore, the optimization model is proposed to obtain the optimal formulation of the DWS-GM under specific constraints. The optimization results show that the optimal formulation of the DWS-GM was 5.6% cement and 6.9% bentonite. The BL, FL, IST, and 28DCS were 1.61%, 21.87 cm, 27.05 h, and 0.22 MPa to meet the functional requirements of the DWS-GM. The above research fully proves the feasibility of the DWS reuse application. We will further reuse DWS to develop other multifunctional material applications in combination with the control needs of RCG technology and technology from other fields.
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spelling doaj.art-743eefffd06549539d5c845c726c39522023-11-16T21:51:10ZengMDPI AGMaterials1996-19442023-02-01164154010.3390/ma16041540Reuse of Drilling Waste Slurry as the Grouting Material for the Real-Time Capsule Grouting TechniqueChenlei Jiao0Yu Diao1Gang Zheng2Yongchao Liu3Jianyou Huang4Ying Zhang5Lejun Zhao6Key Laboratory of Coastal Civil Engineering Structure and Safety, Ministry of Education, Tianjin University, Tianjin 300350, ChinaKey Laboratory of Coastal Civil Engineering Structure and Safety, Ministry of Education, Tianjin University, Tianjin 300350, ChinaKey Laboratory of Coastal Civil Engineering Structure and Safety, Ministry of Education, Tianjin University, Tianjin 300350, ChinaKey Laboratory of Coastal Civil Engineering Structure and Safety, Ministry of Education, Tianjin University, Tianjin 300350, ChinaKey Laboratory of Coastal Civil Engineering Structure and Safety, Ministry of Education, Tianjin University, Tianjin 300350, ChinaTianjin Municipal Engineering Design & Research Institute, Tianjin 300392, ChinaTianjin Municipal Engineering Design & Research Institute, Tianjin 300392, ChinaA large amount of waste slurry is generated during construction, but direct sedimentation and transportation increase construction costs. Improper treatment leads to ecological and environmental pollution. This paper proposes to reuse drilling waste slurry (DWS) as a raw material from a particular project as a grouting material for the real-time capsule grouting technique (RCG) to replace cement grouting material. This not only deals with DWS but also solves the material demand of RCG. An orthogonal experimental design evaluated the performance of the DWS grouting material (DWS-GM). The five levels for the three factors of this experiment were selected, including the fluidity, bleeding rate, initial setting time, and compression strength. A linear model, support vector machines, and neural networks were used to construct regression models, and the effects of different contents of cement, bentonite, and fly ash on the DWS-GM performance were analyzed. The SVM regression model had better performance in describing the laws of fluidity, bleeding rate, and 28-day compressive strength. Furthermore, the optimization model is proposed to obtain the optimal formulation of the DWS-GM under specific constraints. The optimization results show that the optimal formulation of the DWS-GM was 5.6% cement and 6.9% bentonite. The BL, FL, IST, and 28DCS were 1.61%, 21.87 cm, 27.05 h, and 0.22 MPa to meet the functional requirements of the DWS-GM. The above research fully proves the feasibility of the DWS reuse application. We will further reuse DWS to develop other multifunctional material applications in combination with the control needs of RCG technology and technology from other fields.https://www.mdpi.com/1996-1944/16/4/1540real-time capsule grouting technique (RCG)drilling waste slurry grouting materialrecyclingcementbentonitefly ash
spellingShingle Chenlei Jiao
Yu Diao
Gang Zheng
Yongchao Liu
Jianyou Huang
Ying Zhang
Lejun Zhao
Reuse of Drilling Waste Slurry as the Grouting Material for the Real-Time Capsule Grouting Technique
Materials
real-time capsule grouting technique (RCG)
drilling waste slurry grouting material
recycling
cement
bentonite
fly ash
title Reuse of Drilling Waste Slurry as the Grouting Material for the Real-Time Capsule Grouting Technique
title_full Reuse of Drilling Waste Slurry as the Grouting Material for the Real-Time Capsule Grouting Technique
title_fullStr Reuse of Drilling Waste Slurry as the Grouting Material for the Real-Time Capsule Grouting Technique
title_full_unstemmed Reuse of Drilling Waste Slurry as the Grouting Material for the Real-Time Capsule Grouting Technique
title_short Reuse of Drilling Waste Slurry as the Grouting Material for the Real-Time Capsule Grouting Technique
title_sort reuse of drilling waste slurry as the grouting material for the real time capsule grouting technique
topic real-time capsule grouting technique (RCG)
drilling waste slurry grouting material
recycling
cement
bentonite
fly ash
url https://www.mdpi.com/1996-1944/16/4/1540
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