盾构隧道管片注浆幂律流型浆液渗透扩散模型
发布时间：2018-08-14 09:07
【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。
[Abstract]:In order to study the permeation diffusion model of shield tunnel segment grouting, the theoretical calculation formula of the shield tunnel segment grouting permeation diffusion model is derived by using the fluid mechanics theory and capillary group theory, taking the power-law flow type slurry as the research object. The applicable range of the formula and the method of determining the parameters are analyzed. The influence of grouting pressure, slurry properties (water-cement ratio) and formation conditions (groundwater pressure and formation permeability coefficient) on the slurry diffusion radius and the influence of slurry on the total segment pressure are discussed. The results show that the grouting pressure has a linear relationship with the slurry diffusion radius, the grouting pressure, the water-cement ratio and the formation permeability coefficient increase, the slurry diffusion radius also increases, the groundwater pressure increases, the slurry diffusion radius decreases, the grouting pressure, the water-cement ratio, With the increase of formation permeability coefficient, the total pressure of the slurry to the segment increases, while the change of the groundwater pressure does not affect the total pressure of the segment.
【作者单位】： 长安大学公路学院;
【基金】：国家自然科学基金项目(51478044,51178052)
【分类号】：U455.43
[Abstract]:In order to study the permeation diffusion model of shield tunnel segment grouting, the theoretical calculation formula of the shield tunnel segment grouting permeation diffusion model is derived by using the fluid mechanics theory and capillary group theory, taking the power-law flow type slurry as the research object. The applicable range of the formula and the method of determining the parameters are analyzed. The influence of grouting pressure, slurry properties (water-cement ratio) and formation conditions (groundwater pressure and formation permeability coefficient) on the slurry diffusion radius and the influence of slurry on the total segment pressure are discussed. The results show that the grouting pressure has a linear relationship with the slurry diffusion radius, the grouting pressure, the water-cement ratio and the formation permeability coefficient increase, the slurry diffusion radius also increases, the groundwater pressure increases, the slurry diffusion radius decreases, the grouting pressure, the water-cement ratio, With the increase of formation permeability coefficient, the total pressure of the slurry to the segment increases, while the change of the groundwater pressure does not affect the total pressure of the segment.
【作者单位】： 长安大学公路学院;
【基金】：国家自然科学基金项目(51478044,51178052)
【分类号】：U455.43
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8 孙U喢，
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