Unsaturated Soil Mechanics - From Theory to Practice: Proceedings of the 6th Asia Pacific Conference on Unsaturated Soils (Guilin, China, 23-26 Octobe

ISBN-13: 9781138029217 / Angielski / Twarda / 2015 / 924 str.

Cheng Zhenghan; Changfu Wei; Dean Sun

Opis

In the past decades advances have been made in the research and practice on unsaturated soil mechanics. In 2000 the first Asia-Pacific Conferences on Unsaturated Soils was organized in Singapore. Since then, four conferences have been held under the continued support of the Technical Committee on Unsaturated Soils (TC106) of the International Society of Soil Mechanics and Geotechnical Engineering (ISSMGE). The conferences provided an excellent forum for researchers and practitioners in the region and beyond to present the latest developments and to exchange ideas on the subjects related to unsaturated soils.

Unsaturated Soil Mechanics - from Theory to Practice collects more than 140 technical papers, and 10 invited and keynote lectures presented at the sixth Asia-Pacific Conference on Unsaturated Soils (Guilin, China, 23-26 October 2015). The first Asia-Pacific distinguished lecture, launched at the conference, is also included. The contributions address the fundamental behavior of unsaturated soils, and present theoretical and numerical modeling and engineering applications. The topics of concern span the full spectrum from theory to practice, with strong relevance to the problems in the region and beyond such as collapse/swelling, freezing/thawing, desiccation shrinkage, rainfall-induced slope failure, contaminant transport, shale gas extraction and so on, largely representing the latest developments in unsaturated soil mechanics.

Spis treści

Invited and Keynote papersRelationship between the laboratory SWCCs and field stress state D.G. FredlundTensiometer techniques for determining soil water retention curves D.G. Toll, J.D. Asquith, A. Fraser, A.A. Hassan, G. Liu, S.D.N. Lourenço,J. Mendes, T. Noguchi, P. Osinski & R. StirlingCapillary barrier as a slope protection H. RahardjoEvolution of mesoscale structures of unsaturated expansive soil and intact loess under variousstress and hydraulic paths Z.H. Chen, Z.H. Yao, J.F. Guo & Q.Q. MiaoSlope stability analysis methods and application to 1 g failure model tests Y. KohgoInvestigation of mechanical and physio-chemical coupling through swelling pressure Y.J. CuiTesting of the hydro-mechanical behaviour of shales L. Laloui, A. Ferrari &V. FaveroDesiccation crack depth and tensile strength in compacted soil G.A. Miller, A. Hassanikhah & M. VarseiMonotonic and cyclic shear stiffness of unsaturated soil at different temperatures C.W.W. Ng, C. Zhou & J. XuMoisture and gas flow properties of compacted loess final covers for MSW landfills in Northwest China L.T. ZhanExperimental study on characteristics of the collapsibility of Ili loess A.J. Zhang, Y.C. Xing, X.L. Hu, M.X. Guo & B. ZhangUnsaturated soil behaviourMicrostructureAnalysis on microstructure and water retention properties of lime-treated soil Y.J.Wang, Y.J. Cui, A.M. Tang, C.S. Tang & N. BenahmedThe microstructure information of natural loess in different areas, China H.J. Hu, K. Zhou, Y.S. Luo,W.P. Zhao, Q. Hu & Z.Y. ZhangUnderstanding the collapsible behavior of loess from microstructure information P. Li, S.K. Vanapalli &T.L. LiMicrostructure change of loess soil during wet collapsing X.X. Shao, H.Y. Zhang & J.W. LiuResearch on evolution of meso-structure of Q2 loess during plastic and brittlefailure in triaxial tests X.W. Fang, C.N. Shen, Z.H. Chen & J. LiResearch on wetting-induced microstructure change of Q2 loess C.H. Li, X.W. Fang, C.N. Shen &Y.X. OuStructural damage properties of loess under loading and moistening S. Shao, S.J. Shao &A.Z. LuoThe microstructure and soil-water characteristic of unsaturated loess D.R. Hao, H.J. Liao, C.M. Ning & X.P. ShanHydraulic behaviors of unsaturated expansive soils L.C. Miao, Y. Cui & H. ZengDiscussion on cushion material strength after freezing-thawing cycle based on poresize distribution model J.P. Yuan, Q.L.Wang, C.L. Han & K.B. LiNuclear Magnetic Resonance assay of carbon dioxide hydrate in silt H.H. Tian, C.F.Wei, X.L. Xia & H.WangEvolution of soil water in silt soils based on NMR technique P. Chen, C.F.Wei, J. Liu &W.J. XuePoint of Zero Charge of two highly plastic expansive soils B. Lin &A.B. CeratoStress-strain and strength characteristicsInfluence of unsaturated state variables on small strain elastic behaviourA.M. Hasan & S.J. WheelerSome remarks on the mechanical yielding of unsaturated soils M. Lloret-Cabot, J.A. Pineda, D. Sheng & M.P. Cordão NetoDeformation and yielding for intact Q3 loess under various stress paths D.F. Zhang, C.L. Chen, D.B. Yu, Y.T. Shu & P. GaoAn experimental method to study the drying-wetting behaviour of a sand M. MilatzCharacterizing soil mechanical response induced by drought climate usinga novel micropenetrometer D.Y.Wang, C.S. Tang, S.K. Xu, K.Q. Sun, P.Wang & B. ShiInvestigating the volume change characteristics of bentonite/sand mixtureunder hydro-mechanical coupling condition Z.G. Chen, C.S. Tang, D.Y.Wang, P.Wang, K.Q. Sun & B. ShiDeformation characteristics and permeability of saturated bentonite-sand mixtures W.J. Sun, Z.F.Wei, S.Q. Liu, C. Chen, L. Zhang & D.A. SunInvestigation on swelling-shrinkage behavior of compacted expansive soils duringwetting-drying cycles N.F. Zhao,W.M. Ye, B. Chen &Y.G. ChenCracks’ evolution characteristics of remolded expansive soils in the soakingand loading process Z.H. Yao, Z.H. Chen,W. Li, L.H. Su, Q.Q. Miao & J.H. ZhangResilient modulus – soil suction correlations for two subgrade soils from China Z. Han & S.K. VanapalliWetting collapse at high degree of saturation during shearing for unsaturated sand B.J. ShwanDevelopment of a new cyclic simple shear apparatus and test verification on loess S.J. Shao, Q.Wang & S. ShaoConsolidation behavior of unsaturated Chuanxi compacted soil with soil suctioncontrol oedometer D. Lu &W. LiExperimental study of mechanical behavior of unsaturated silty clay in differentloading sequences under constant water content condition A.M. Rasool, K. Jiro & T. ShinyaChange in shear behavior of unsaturated volcanic coarse-grained soil due to fineparticles run off X.Y. Zheng, T. Ishikawa &T. TokoroEffect of fine grain contents on the unsaturated mechanical characteristics ofembankment materials B.S. Kim, Y. Takeshita, S. Kato & S.W. ParkResearch on physical and mechanical properties of Xinjiang Daxigou loess Z.Q. Hu, S. Lin, Z.J. Li & H.R. LiStudy on dynamic modulus and deformation characteristics of loess underbidirectional cyclic loads X.D. Zhang, Y.S. Luo, P.C.Wang & L.X. HuShear strength of a swelled soil examining influence of swelling boundary conditions B.F. Lim & G.A. SiemensStrength behaviors of the unsaturated silty clay based on ring shear test W.J. Xue, P. Chen & C.F.WeiInfluence of matric suction on shear strength behavior of remolded unsaturatedbasalt residual soil J. Chen, X.W. Lei, F.Z. Cheng & Q.S. MengStudy on shear strength characteristics of the remolded laterite soil in Guilin X.J. Chen, X. Huang, G.Y. Xiao, H.B. Chen &Y.L. QiExperimental analysis on tensile strength of unsaturated sandy clay underdifferent initial densities and water contents R.J. Che, G.Q. Cai & C.G. ZhaoWater retention and hydraulic behaviorA non-linear hysteresis model for soil-water retention behaviour A.N. ZhouCommon mistakes in determination of air entry value from gravimetric watercontent based Soil-Water Characteristic Curve A.Y. Pasha, A. Khoshghalb & N. KhaliliNon-isothermal water retention curve and volume change equation for unsaturated soils A.N. Zhou, J. Li & D. ShengA simplified method to estimate the Soil-Water Characteristic Curve Y.T. Fan & E.C. LeongEffect of specimen preparation on water retention and deformation behaviourof unsaturated soils D.A. Sun, Y. Gao &A.N. ZhouA research of affect factor on hysteresis behavior for Soil-Water Characteristic Curve J. Li & F.Y. LiuSoil water retention of a compacted sandy clay with sub-critical water repellencyS.D.N. Lourenço, N. Jones, C.P. Morley, S.H. Doerr & R. BryantMeasurement of Soil-Water Characteristic Curve of expansive soil usingfilter paper method H. Li, L.C. Li & Z.Q. HuangDrying-wetting Soil-Water Characteristic Curves of highly expansive soil A.M. Al-Mahbashi, T.Y. Elkady & M.A. AlshamraniMeasurement of Soil-Water Characteristic Curve with a continuous pressurization method S. Kato, M. Hatakeyama, H. Abe, B.S. Kim &Y. TakeshitaHydraulic properties for soils that undergo volume change as soil suction is increased F. Zhang, D.G. Fredlund & G.W.WilsonRole of unsaturated permeability function in seepage analyses A. Rahimi, H. Rahardjo & E.C. LeongEffects of variability of unsaturated hydraulic properties on stability of residual soil slopes Q. Zhai, H. Rahardjo &A. SatyanagaMeasurement of hydraulic properties of unsaturated permeable polyurethanebound asphalt materials L. Renken, M. Oeser, M. Milatz & J. GrabeHydro-mechanical behaviour of shot-clay bentonite A. Ferrari, A. Seiphoori & L. LalouiEffect of heating to Soil-Water Characteristic Curve of compacted bentonite T. NishimuraDevelopment of test-bed and model test for one-dimensional heat andmoisture transfer in soils Z.T. Zeng, Y.L. Zhao, H.B. Lu, C.F.Wei &Y. ZhangThermal conductivity of unsaturated mixtures of loess soil with granulated rubber Z.H. Li, H.Y. Zhang &Y.M. ShengLaboratory study on drainage-seepage controlling of fine/coarse structure inunsaturated expansive soil slope Q.H.Wu, J.F. Zhang, G.S. Zhu, H.D. Cui & X.Y. LiuWater retention properties of unsaturated coarse-grained soils: The experimentalstudy of the effect of Microbialy Induced Calcite Precipitation R. Saffari, G. Habibagahi, E. Nikooee &A. NiaziEffect of grain size on soil moisture evaporation process S.K. Xu, C.S. Tang, K.Q. Sun & P.WangOsmotic suction of two highly plastic expansive soils B. Lin &A.B. CeratoModellingFundamentals and constitutive modellingRate effects in inter-granular capillary bridges Y. Zhang, D. Hanaor &Y.X. GanInteraction force between pore water and soil skeleton L.T. Shao & X.X. GuoDevelopment of a hydro-thermal coupled model for unsaturated soils N. An, S. Hemmati, Y.J. Cui &A.M. TangNonlinear analysis of stress-strain relations of unsaturated soils J.H. Zhang, Z.H. Chen, D. Chen, Q.Q. Miao & Z.H. YaoProblems associated with determination of yield curves for unsaturated soils X. ZhangStructural and mechanical behavior of expansive soil with pore damage M.S. Cheng, S.J.Wang, Y.Q. Zhang, S.H. Jiang & Z.H. ChenPrediction of 1-D heave of a natural expansive soil slope of Zao-yang in Chinausing the SWCC-based and water content-based models H.Y. Tu & S.K. VanapalliPotential of surfactants for clay improvement N. Jones, S.D.N. Lourenço & A. PaulCam-clay model applicable to unsaturated clayey sand Q.Q. Miao, Z.H. Chen, Q.Q. Zhu, Z.H. Yao & J.H. ZhangAnalysis, improvement and evaluation of the generalized Soil-Water Characteristic Curve Z.H. Chen & J.H. ZhangA fractal-based Soil-Water Characteristic Curve model for deformable soils A. Khoshghalb, A.Y. Pasha & N. KhaliliThe formulation of the water retention curve with deformation and hysteresisQ.D. Huang, C.G. Zhao & G.Q. CaiValidity of the bimodal equations for fitting the Soil-Water Characteristic Curvebehavior of cracked expansive soils X.Wang & S.K. VanapalliA model for thermal influence on water retention curve in high suction range B. Qin, Y. Lu, F.Z. Zhang & Z.H. ChenEvaluation of Soil-Water Characteristic Curves of sand-cement mixtures A.O. Al Shenawy, S.H. Al-hadama &T.Y. ElkadyStudy on the absorbed suction of unsaturated soil based on the Horsfieldclose packing model L.S. Tang, Y.L. Sun, Z.W. Deng & H.T. SangEffective stress for volume change of unsaturated soils Y.F. Xu, Z.R. Cao, H.G. Zhu & F.F. ChuFailure of divide-and-conquer approach in the characterization of unsaturated soils X. ZhangReanalysis on shear strength of unsaturated soils L.T. Shao, G.F. Zheng & X.X. GuoInfluence of sodium chloride on evaporation and cracking of earthen heritages Y. Zhang,W.M. Ye, B. Chen &Y.G. ChenPrediction of swelling by effective stress of bentonite in salt solution G.S. Xiang, Y.F. Xu, T. Chen & H. JiangAn elastoplastic constitutive model for chalk with considering chalk-fluidphysicochemical interaction T.T. Ma, C.F.Wei & X.L. XiaAn elastoplastic constitutive model for gas hydrate-bearing soils withhydrate dissociation R.T. Yan & C.F.WeiAn intelligent back analysis optimization method of constitutive parametersfor surrounding rock Y. Zhang, B.C. Liu, Y.N. Hou & Z.T. ZengPredicting liquefaction of unsaturated sands using a coupled hydro-mechanicalelastoplastic constitutive model B. Zhang, K.K. Muraleetharan & C. LiuNumerical modellingNumerical modelling of swelling/shrinkage behaviour of unsaturated soils forburied pipe stress analysis D.Weerasinghe, J. Kodikara & H. BuiNumerical study on expansive soil slope stability considering the cracks andcoupling effects S.C. Qi & S.K. VanapalliA numerical model for heat and moisture migration in unsaturated freezing soil J. Teng, D. Sheng, S. Liang & S. ZhangEffective stress based numerical modelling of shallow foundations on unsaturated soil Y. Tang & H.A. TaiebatDevelopment of a fully coupled thermo-hydro-chemical simulator for gashydrate extraction W.T. Li, C.F.Wei & T.T. MaThree-dimensional DEM simulation of constant-water-content triaxial testson the unsaturated remolded loess T. Li & M.J. JiangSimulation of particle crushing using Discrete-Element Method (DEM)Y. Xi &Y.F. XuA new numerical method for one-dimensional compression test of crushableparticles based on DEM Y.D.Wang & Y. XiSensitive THM coupled analysis of buffer-rock barriers for nuclear waste storage Y.F. Qiao, A. Ferrari, L. Laloui &W.Q. DingEngineering applications and case historiesField testingMonitoring of a suburban environment: Soil-plant-atmosphere and clay movements D.A. Cameron, S.J. Vorwerk & G. KeppelField monitoring of suction distribution in Coarse-Grained and Fine-Grained residual soil N. Gofar, H. Rahardjo & M.L. LeeDetermining volume of failed soil mass in a landslide from satellite images B.J.M. Lim, E.C. Leong & K.S. LowField monitoring to study the effect of rainfall on tree stability N. Amalia, H. Rahardjo, T.T. Lee, E.C. Leong &Y.K. FongThe impacts of climate change on expansive soil movements in Australia X. Sun, J. Li, A.N. Zhou & G. RenA study on the feasibility of using centrifugal model test to simulate in-situsoaking test on loess S.L. Jin, Y.C. Xing,W.Q. Zhao, A.J. Zhang & P. AnModel test on lateral earth pressure of highly expansive soil S.A. Khattab, M.K. Al-Shamam & K.A. Al-JuariExperimental study on the saturation changes of dredged fills during verticalvacuum preloading J.J. Ma, J.Wang, P.Wang, Y.Q. Cai & H.T. FuStress evolution in THMC GMZ-bentonite China-Mock-up for geological disposalof high level radioactive waste in China Y.M. Liu, S.F. Cao, J.Wang, J.L. Xie, L.K. Ma, X.G. Zhao & L. ChenSelection and analysis of enclosure structure of deep foundation pit in Lanzhou metro N. Guo, Z.H. Chen & X.H. YangDesign and installation of comprehensive instrumentation system of high-fillfoundation in mountainous airport Y.P. Zhu, X.H. Yang, Z.B. Shi,W.X. Cai & H.J. JiangEngineering applicationsComparisons between the measured and predicted resilient modulus of subgrade Redclay using a SWCC based model W.L. Zou, J.F. Zhang, Y.L. Li, S.K. Vanapalli, H.Y. Tu & J. ZhangApplication of MPK framework to interpret volume change behavior of compactedunsaturated soils A. Abeyrathne, T. Islam, J. Kodikara & H. BuiBehaviour of pipes subjected to fault movements in unsaturated soils using spring analysis D.J. Robert & K. SogaEngineering characteristics of granite residual soils of landslide inWuzhou,Guangxi, China Z.B.Wang, K. Li, C.F.Wei & Z.Q. XuCavity expansion in unsaturated silty sand exhibiting hydraulic hysteresis forthree drainage conditions H. Yang & A.R. RussellTranslational slip failures on slope incorporating unsaturated soil mechanics W. Huang, E.C. Leong & H. RahardjoInvestigation on the failure mechanisms of unsaturated high loess slope triggeredby irrigation X.T. Zhang, T.L. Li &W.H. LiuEstimation of soil shrinkage curve M.Wijaya & E.C. LeongEffect of infiltration characteristics of soil on tree stability A. Rahimi, H. Rahardjo, E.C. Leong, T.T. Lee, A.W.K. Law &Y.K. FongAn analysis of plain strain deformation and strength characteristics of loess withvertical structure Y. Zhang, S.J. Shao & L.J.WangEngineering properties of lead contaminated expansive soil X.Q. Zhang, F.S. Zha, J.J. Liu & K.R. CuiFeasibility investigation of a local weathered soil as final cover material for a landfillin south China J. Liu, R. Chen, T.L.T. Zhan, Z.Q. Li & C.W.W. NgModelling of transport and erosion of bentonite in the fracture T. Chen &Y.F. XuWater-rock interaction for marly rocks of Badong group in the ThreeGorges Reservoir Area X.J. Chen, L.L. Xia, Z.Y. Zhao, Y. Song, B. Chai, J. Tong & B. JiangFeasibility analysis of electromagnetic field in geotechnical engineering research B.X. Shi, S.S. Chen, G.R. Zhang & C. ZhouImprovement of soil stability along rail corridors through native vegetation M. Pallewattha, B. Indraratna & C. RujikiatkamjornMechanism of new anchored reinforced vegetation system for strengtheningswelling rock and soil slope Y. Xu, S. Xian & S. PeiResearch on the electrical resistivity of early solidified soil composing of dredged clays F.Z. Cheng, X.W. Lei, Y.S. Liao, Q.S. Meng & J. ChenThe hydrological mechanism of a residual soil slope underwent deformationsduring rainfall C.C. Fan & S.H. LiuComparative analysis on flexible supporting technology of different types ofexpansive soil cutting slope in the south and the north of China H.P. Yang, J.S. Lin & J. XiaoEffect of sodium chloride solution on adsorbed water content of clays X.L. Xia, C.F.Wei, T.T. Ma & H.H. TianSwelling of GMZ bentonite with saline solutions and its prediction L. Zhang, D.A. Sun &Y.M. LiuGeo-Barrier System as a retaining structure H. Rahardjo, Q. Zhai, A. Satyanaga, E.C. Leong, C.L.Wang & L.H.WongNumerical stimulation of geogrid reinforced flexible supporting treatingexpansive soil cut slope J. Xiao, H.P. Yang & S.Y. ZhuThe effect of traffic loading to buried water mains in partially saturated soils C. Randeniya, D.J. Robert & C.Q. LiEffect of water content on long-term cyclic behaviour of railway track-bed materials F. Lamas-Lopez, Y.J. Cui, J.C. Dupla, A.M. Tang, J. Canou, N. Calon & S. Costa D’AguiarAnalogy study on surface deterioration of earthen monuments Y. Chen, J.F.Wang, H.Y. Zhang &Y.X. GaiAnalysis of the failure of a polluted red clay foundation in the north Guilin karst area C.M. Mu, K.L. Han &Y. Liu

O autorze

Chen, Zhenghan ; Wei, Changfu ; Sun, De´an; Xu, Xongfu