考虑滤过效应的卵砾石层浆液扩散研究

Abstract
Figure/Table
References
Related Citation (15)

Download: PDF (275 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract Due to progressive blocking of cement grains within the soil matrix，filtration of grout plays a significant role during grout dispersion process. The influence of filtration on the grout dispersion in gravel is studied. The injectability criterion of the grout is first summarized. Then the linear filtration law is introduced into the mass balance relationships of water，cement and soil to develop a cement grout dispersion model in spherical coordinates with account for filtration. The comparison between model results and experimental data proves the validity of the given model and the necessity of considering the phenomenon of filtration. In addition，the influences of filtration on permeation grouting under different injection durations and water-cement ratios are also studied. The results reveal that the penetration resistance increases gradually due to grout filtration，leading to the increase in grouting pressure with time. For grout with smaller water-cement ratio，the grouting pressure is larger and the influence of filtration is more obvious.

Key words： underground engineering filtration grouting injectability spherical dispersion gravel

Received: 24 October 2012

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors

Cite this article:

URL:

http://www.rockmech.org/EN/Y2013/V32/I7/1443

[6]	SAADA Z，CANOU J，DORMIEUX L，et al. Modelling of cement suspension flow in granular porous media[J]. International Journal for Numerical and Analytical Methods in Geomechanics，2005，29(7)：691-711. " target="_blank">
[7]	DUPLA J C，CANOU J，GOUVENOT D. An advanced experimental set-up for studying a monodirectional grout injection process[J]. Ground Improvement，2004，8(3)：91-99. " target="_blank">
[16]	邝键政，昝月稳，王杰，等. 岩土工程注浆理论与工程实例[M]. 北京：科学出版社，2001：49-52.(KUANG Jianzheng，ZAN Yuewen，WANG Jie，et al. Theory and project example of grout in geotechnical engineering[M]. Beijing：Science Press，2001：49-52.(in Chinese)) " target="_blank">
[4]	MCDOWELL-BOYER L M，HUNT J R，SITAR N. Particle transport through porous media[J]. Water Resources Research，1986，22(13)：1 901-1 921. " target="_blank">
[9]	BOUCHELAGHEM F. Modeling of cement suspension flow in fine sands in the presence of particle filtration[J]. Journal of Porous Media，2011，14(2)：107-125.
[13]	BURWELL E B. Cement and clay grouting of foundations：Practice of the corps of engineers[J]. Journal of Soil Mechanics and Foundations Division，1958，84：1 551/1-1 551/22. " target="_blank">
[1]	SAADA Z，CANOU J，DORMIEUX L，et al. Evaluation of elementary filtration properties of a cement grout injected in a sand[J]. Canadian Geotechnical Journal，2006，43(12)：1 273-1 289. " target="_blank">
[2]	CHUPIN O，SAIYOURI N，HICHER P Y. The effects of filtration on the injection of cement-based grouts in sand columns[J]. Transport in Porous Media，2008，72(2)：227-240.
[3]	BOUCHELAGHEM F，VULLIET L. Mathematical and numerical filtration-advection-dispersion model of miscible grout propagation in saturated porous media[J]. International Journal for Numerical and Analytical Methods in Geomechanics，2001，25(12)：1 195-1 227. " target="_blank">
[5]	REDDI L N，MING X，HAJRA M G，et al. Permeability reduction of soil filters due to physical clogging[J]. Journal of Geotechnical and Geoenvironmental Engineering，2000，126(3)：236-246. " target="_blank">
[8]	SCHWARZ L G，KRIZEK R J. Effect of preparation technique on permeability and strength of cement-grouted sand[J]. Geotechnical Testing Journal，1994，17(4)：434-443. " target="_blank">
[10]	KIM J S，LEE I M，JANG J H，et al. Groutability of cement-based grout with consideration of viscosity and filtration phenomenon[J]. International Journal for Numerical and Analytical Methods in Geomechanics，2009，33(16)：1 771-1 797. " target="_blank">
[11]	MAGHOUS S，SAADA Z，DORMIEUX L，et al. A model for in situ grouting with account for particle filtration[J]. Computers and Geotechnics，2007，34(3)：164-174.
[12]	KIM Y S，WHITTLE A J. Particle network model for simulating the filtration of a microfine cement grout in sand[J]. Journal of Geotechnical and Geoenvironmental Engineering，2009，135(2)：224-236. " target="_blank">
[14]	MITCHELL J K. Soil improvement-state of the art[C]// Proceedings of the 10th International Conference on Soil Mechanics and Foundation Engineering. Stockholm：A. A. Balkema，2006：509-565. " target="_blank">
[15]	AKBULUT S，SAGLAMER A. Estimating the groutability of granular soils：a new approach[J]. Tunnelling and Underground Space Technology，2002，17(4)：371-380. " target="_blank">
[17]	EKLUND D，STILLE H. Penetrability due to filtration tendency of cement-based grouts[J]. Tunnelling and Underground Space Technology，2008，23(4)：389-398.