盾构隧道管片注浆幂律流型浆液渗透扩散模型

叶飞; 陈治; 贾涛; 毛燕飞; 毛家骅

doi:10.11779/CJGE201605014

盾构隧道管片注浆幂律流型浆液渗透扩散模型 English Version

长安大学公路学院,陕西西安 710064

基金项目: 国家自然科学基金项目(51478044,51178052)

详细信息

作者简介:
叶飞(1977- ),男,教授,主要从事隧道与地下工程等方面的教学和科研。E-mail: xianyefei@126.com。

中图分类号: TU43
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- 文章访问数: 481
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- PDF下载量: 388
出版历程
- 收稿日期: 2015-05-13
- 发布日期: 2016-05-24

Penetration diffusion model of exponential fluid for backfill grouting through segments of shield tunnel

School of Highway, Chang'an University, Xi'an 710064, China

摘要

摘要: 为研究盾构隧道管片注浆的渗透扩散模型,以幂律流型浆液为研究对象,运用流体力学理论及毛细管组理论,推导了盾构隧道管片注浆渗透扩散模型的理论计算式,分析了其公式的适用范围及各参数的确定方法。结合具体计算案例,讨论了注浆压力、浆液性质（水灰比）、地层条件（地下水压力和地层渗透系数）等因素对浆液扩散半径的影响及浆液对管片总压力的影响。结果表明：注浆压力与浆液扩散半径成线性关系;注浆压力、水灰比及地层渗透系数增大,浆液扩散半径也增大;地下水压力增大,浆液扩散半径减小;注浆压力、水灰比、地层渗透系数增大,浆液对管片的总压力增加;地下水压力的变化不会影响管片所受的总压力。
- 盾构隧道 /
- 管片注浆 /
- 幂律流体 /
- 渗透扩散
Abstract: In order to study the penetration diffusion model for backfill grouting through segments of shield tunnel, taking the exponential fluid as the research object and applying the fluid mechanical theory and capillary group theory, the formulae for calculating the backfill grouting through segments of shield tunnel are deduced, and the application scope and determination methods for the parameters of the formulae are analyzed. Based on a specific case, the influences of the grouting pressure, grout properties (water-cement ratio) and ground conditions (groundwater and permeability coefficient) on the grout diffusion radius and the total pressure on segments are discussed. The result shows that the grouting pressure is linear to the diffusion radius. The diffusion radius increases along with the increase of the grouting pressure, water-cement ratio and permeability coefficient, and decreases along with the increase of the groundwater pressure. The total grouting pressure on segments increases with the increase of the grouting pressure, water-cement ratio and ground permeability, but does not change along with the change of the groundwater pressure.
- shield tunnel /
- backfill grouting through segment /
- exponential fluid /
- penetration diffusion

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参考文献(14)

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文章访问数: 481
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盾构隧道管片注浆幂律流型浆液渗透扩散模型 English Version

作者简介: 叶 飞(1977- ),男,教授,主要从事隧道与地下工程等方面的教学和科研。E-mail: xianyefei@126.com。

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出版历程

Penetration diffusion model of exponential fluid for backfill grouting through segments of shield tunnel

计量

出版历程

目录

作者简介:
叶飞(1977- ),男,教授,主要从事隧道与地下工程等方面的教学和科研。E-mail: xianyefei@126.com。