泥水盾构隧道用新型环保泥浆及流变性质

doi:10.6040/j.issn.1672-3961.0.2023.323

山东大学学报 (工学版) ›› 2024, Vol. 54 ›› Issue (6): 82-88.doi: 10.6040/j.issn.1672-3961.0.2023.323

• 土木工程 • 上一篇

泥水盾构隧道用新型环保泥浆及流变性质

孙腾云¹,丁万涛^2,3*,王承震¹,于文端¹,王志成¹,郭文静²

1.中铁十四局集团有限公司, 山东济南 250014;2.山东大学齐鲁交通学院, 山东济南 250002;3.山东大学岩土与地下工程研究院, 山东济南 250061

发布日期:2024-12-26
作者简介:孙腾云(1988— ),男,山东潍坊人,工程师,主要研究方向为隧道与地下工程施工管理与技术. E-mail:1033267154@qq.com. *通信作者简介:丁万涛(1975— ),男,山东济南人,教授,博士生导师,博士,主要研究方向为盾构隧道稳定性. E-mail:wantaod@sdu.edu.cn
基金资助:
国家自然科学基金面上资助项目(52278403);山东省自然科学基金资助项目(ZR2021ME135)

Environmentally friendly slurry and rheological properties for slurry shield tunnel

SUN Tengyun¹, DING Wantao^2,3*, WANG Chengzhen¹, YU Wenduan¹, WANG Zhicheng¹, GUO Wenjing²

1. China Railway 14th Bureau Group Co., Ltd., Jinan 250014, Shandong, China;
2. School of Qilu Transportation, Shandong University, Jinan 250002, Shandong, China;
3. Institute of Geotechnical and Underground Engineering, Shandong University, Jinan 250061, Shandong, China

Published:2024-12-26

摘要/Abstract

摘要： 针对泥水盾构传统添加剂羧甲基纤维素钠(sodium carboxymethyl cellulose, CMC)降解困难这一问题,提出一种以亚麻籽胶(天然绿色植物胶)作为添加剂的环保泥浆。采用流变仪分析亚麻籽胶对膨润土泥浆流变曲线的影响,研究不同亚麻籽胶质量分数下屈服应力和表观黏度的变化规律,并与CMC和现有环保添加剂瓜尔胶的效果进行对比,揭示各添加剂在泥浆中的作用机理。结果表明,上述3种添加剂均可以提高泥浆的流变性质,各泥浆的流体动力学行为可用Herschel-Bulkley模型较好地描述,且表观黏度μ、屈服应力τ₀、稠度系数k与添加剂质量分数C呈正相关,而流变指数n与质量分数C呈负相关。当添加剂质量分数一定时,亚麻籽胶对膨润土泥浆流变性质的提高效果与CMC相近并高于瓜尔胶,可代替二者作为环保泥浆的添加剂。

关键词: 泥水盾构, 泥浆, 亚麻籽胶, 流变性质, 作用机理

中图分类号:

孙腾云,丁万涛,王承震,于文端,王志成,郭文静. 泥水盾构隧道用新型环保泥浆及流变性质[J]. 山东大学学报 (工学版), 2024, 54(6): 82-88.

SUN Tengyun, DING Wantao, WANG Chengzhen, YU Wenduan, WANG Zhicheng, GUO Wenjing. Environmentally friendly slurry and rheological properties for slurry shield tunnel[J]. Journal of Shandong University(Engineering Science), 2024, 54(6): 82-88.

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泥水盾构隧道用新型环保泥浆及流变性质

Environmentally friendly slurry and rheological properties for slurry shield tunnel

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