ДВУМЕРНАЯ КОНСОЛИДАЦИЯ ГРУНТА ПОД ДЕЙСТВИЕМ ЭЛЕКТРООСМОСА В СОЧЕТАНИИ С ПРЕДВАРИТЕЛЬНЫМ ВАКУУМНЫМ НАГРУЖЕНИЕМ TWO-DIMENSIONAL CONSOLIDATION THEORY OF VACUUM PRELOADING COMBINED WITH ELECTROOSMOSIS CONSIDERING THE DISTRIBUTION OF SOIL VOLTAGE

Shen Yang, Feng Jianting, Qiu Chenchen, Wu Jiawei

Аннотация


При построении уравнения двумерной консолидации грунта в процессе электроосмоса с вакуумной предварительной нагрузкой учитывается фактическое распределение напряжения электрического поля в грунте, что более реалистично отражает условия уплотнения. Конфигурация электрического поля задается на основе предыдущих результатов исследований
и независимо полученных экспериментальных данных. На основе приближенной к реальной инженерной ситуации модели с закрытым анодом и открытым катодом выведены уравнение диссипации избыточного порового давления воды и уравнение уплотнения грунта, а аналитическое решение проверено модельными испытаниями. Результаты подтверждают
рациональность уравнения консолидации, предложенного авторами.


Литература


J. Wang, Y. Q. Cai, and H. T. Fu, ꞌꞌExperimental study on a dredged fill ground improved by a two-stage vacuum preloading method, ꞌꞌ Soils Found., 58(3), 766-775 (2018).

R. G. Robinson, B. Indraratna, and C. Rujikiatkamjorn, ꞌꞌFinal state of soils under vacuum preloading, ꞌꞌ Can. Geotech. J., 49(6), 729-739 (2012).

E. A. Ivliev, ꞌꞌElectro-osmotic drainage and stabilization of soils, ꞌꞌ Soil Mech. Found. Eng., 45(6), 211-218 (2008).

Z. J. Xue., X. W. Tang, ꞌꞌComparison of Electro-osmosis Experiments on Marine Sludge with Different Electrode Materials, ꞌꞌ Dry. Technol., 33(8), 986-995 (2015).

Y. L. Tao, J. Zhou, X. N. Gong, ꞌꞌExperimental study on transport process of electro-osmosis based on Hangzhou soft soil, ꞌꞌ J. Cent. South Univ., 49(2), 448-453 (2018).

A.R. Estabragh, M. Naseha, and A.A. Javadi, ꞌꞌImprovement of clay soil by electro-osmosis technique, ꞌꞌ Appl. Clay Sci., 95, 32-36 (2014).

J. Wang, H. T. Fu, and F. Y. Liu, ꞌꞌInfluence of electro-osmosis activation time on vacuum electro-osmosis consolidation of a dredged slurry, ꞌꞌ Can. Geotech. J., 55(1), 147-153 (2018).

J. Feng, Y. L. Wan, and X. Y. J, ꞌꞌDynamic changes in the characteristics and components of activated sludge and filtrate during the pressurized electro-osmotic dewatering process, ꞌꞌ Sep. Purif. Technol., 134, 1-11 (2014).

Z. H. Sun, X. J. Xu, ꞌꞌExperimental studies on vacuum preloading incorporated with electro-osmosis consolidation for dredger fill, ꞌꞌ Chinese J. Geotech. Eng., 39(2), 250-258 (2017).

Z. H. Sun, M. J. Gao, ꞌꞌVacuum Preloading Combined with Electro-Osmotic Dewatering of Dredger Fill Using Electric Vertical Drains, ꞌꞌ Dry. Technol., 33(7), 847-853 (2015).

H. Fu, Y. Cai, and J. Wang, ꞌꞌExperimental study on the combined application of vacuum preloading-variable-spacing electro-osmosis to soft ground improvement, ꞌꞌ Geosynth. Int., 24(1), 72-81 (2017).

J. Wang, R. Zhao, and Y. Q. Cai, ꞌꞌVacuum preloading and electro-osmosis consolidation of dredged slurry pretreated with flocculants, ꞌꞌ Eng. Geol., 246, 123-130 (2018).

Y. L. Lou, H. Y. Li, and B. L. Zhang, ꞌꞌA study of the mechanical properties changing process of soft soil in the pearl river delta region under the vacuum preloading-elecrtrokinetics condition, ꞌꞌ Acta Scientiarum Naturalium Univ. Sunyatseni, 54(1), 64-69 (2015).

W. Xu, S. H. Liu, ꞌꞌAnalytical theory of soft ground consolidation under vacuum preloading combined with electro-osmosis, ꞌꞌ J. Hohai Univ., 39(2), 169-175 (2011).

H. Wu, L. M. Hu, ꞌꞌAnalytical models of the coupling of vacuum preloading and electro-osmosis consolidation for ground stabilization, ꞌꞌ J. Tsinghua Univ., 52(2), 182-185 (2012).

J. Li, Y. P. Zhang, and L. Yan, ꞌꞌSolutions for consolidation of soft ground under vacuum preloading combined with electro-osmosis, ꞌꞌ Port & Waterway Eng., 38(3), 133-138 (2012).

Y. Shen, C. C. Qiu, ꞌꞌAn analytical solution for two-dimensional vacuum preloading combined with electro-osmosis consolidation using EKG electrodes, ꞌꞌ PloS One, 12(8), e0180974 (2017).

J. Q. Shang, ꞌꞌElectroosmosis enhanced preloading consolidation via vertical drains, ꞌꞌ Can. Geotech. J., 35(3), 491-499 (1998).

J. Q. Su, Z. Wang, ꞌꞌThe two-dimensional Consolidation Theory of Electro-osmosis, ꞌꞌ Geotechnique, 53(8), 759-763 (2003).

Y. Li, X. N. Gong, ꞌꞌCoupling consolidation theory under combined action of load and electro-osmosis, ꞌꞌ Chinese J. Geotech. Eng., 32(1), 77-81 (2010).

J. Wang, H. T. Fu, ꞌꞌAnalyses of one dimensional electro-osmotic consolidation theory and test of soft clay under linear load, ꞌꞌ Chinese J. Rock Mech. Eng., 33(1), 179-188 (2014).

N. Li, ꞌꞌMechanism and experimental study of electro-osmosis method for reinforcing soft soil by cathodic pumping, ꞌꞌ M. Sc. thesis, Hohai University, Nanjing, China (2015).

C. C. Qiu, ꞌꞌSoft Clay Improvement by Vacuum preloading–electroosmosis – chemical grouting techniques using EKG electrodes, ꞌꞌ M. Sc. thesis, Hohai University, Nanjing, China (2018).

J. Wang, L. Zhang, ꞌꞌExperimental study of vacuum preloading combined reinforcement with electro-osmosis in soft clay ground, ꞌꞌ Chinese J. Rock Mech. Eng., 33(S2), 4181-4192 (2014).

J. Q. Su, Z. Wang, ꞌꞌTheory of two-dimensional electro-osmotic consolidation of soils, ꞌꞌ Rock Soil Mech., 25(1), 125-131 (2004).


Ссылки

  • На текущий момент ссылки отсутствуют.