幂律型流体的柱–半球形渗透注浆机制研究

doi:10.13722/j.cnki.jrme.2014.s2.057

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摘要在实际工程实践中，注浆是最常用的方法，注浆扩散机制是决定其能否在工程中成功应用的关键因素。采用理论分析与试验研究等方法，研究幂律型流体的柱–半球形渗透注浆形式的柱体部分扩散高度与半球形部分扩散半径的理论机制公式并分析其适用范围及参数的确定方法。通过设计室内注浆试验对其进行验证，结果表明：试验实际测量的半球体部分扩散半径及柱体部分扩散高度值与由幂律型流体的柱–半球形渗透注浆扩散公式得到的扩散半径与扩散高度理论计算值间虽有30%～35%的差异，但都处于可接受误差范围内，在总体上能较好地反映幂律型流体在被注介质中的柱–半球形注浆渗透扩散规律。由于国际国内对幂律型注浆流体的柱–半球形渗透注浆机制的研究还鲜见报道，由此，本文的研究成果可为实际注浆施工提供一定理论支撑与指导作用。

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	杨志全1
	侯克鹏1
	程涌2
	杨八九2

关键词 ：岩石力学；幂律型流体；柱&ndash, 半球形；渗透注浆机制

Abstract：Grouting method is a common way to the engineering practices，grouting diffusion mechanism is the key factor which make it applied successfully in engineering. Carrying out theoretical analysis and experimental researches，diffusion radius of hemispheroid and diffusion length belongs to cylinder of column-hemispherical penetration grouting mechanism based on power-law fluid are deduced，at the same time the scope of application and method to determine the parameters are analyzed respectively. Then they were validated by means of designing indoor grouting experiments. Experiment results show that diffusion radius of hemispheroid，diffusion length belongs to cylinder of actual measurement values in the indoor grouting experiments have about 30%–35% differences with that of theoretical values calculated by column-hemispherical penetration grouting mechanism based on power-law fluid，but they are all within the acceptable error limits. Because the international and domestic researches on them were seldom reported，therefore，research achievements may not only can provide strong theoretical basis for perfecting the penetration grouting mechanism，but also play a reference guiding role for the theoretical research，design and construction on grouting technique.

Key words： rock mechanics power-law fluid column-hemisphere penetration grouting mechanism

引用本文:

杨志全1，侯克鹏1，程涌2，杨八九2. 幂律型流体的柱–半球形渗透注浆机制研究[J]. 岩石力学与工程学报, 2014, 33(S2): 3840-3846.
YANG Zhiquan1，HOU Kepeng1，CHENG Yong2，YANG Bajiu2. STUDY OF COLUMN-HEMISPHERICAL PENETRATION GROUTING MECHANISM BASED ON POWER-LAW FLUID. , 2014, 33(S2): 3840-3846.

链接本文:

https://rockmech.whrsm.ac.cn/CN/10.13722/j.cnki.jrme.2014.s2.057 或 https://rockmech.whrsm.ac.cn/CN/Y2014/V33/IS2/3840

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