Determination of Hydraulic Conductivity Using a Modified Cylindrical-Half-Spherical Piezocone Model

Zhang, Mingfei; Tong, Liyuan

doi:10.1007/s40999-017-0154-2

Cited by 5 publications

(2 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…properties of soil deposits is one of the most critical aspects of geotechnical engineering, because it determines the rate of flow of groundwater through the subsurface, which controls seepage in rock and soil. Additionally, it is of great importance for geoenvironmental risk assessment involving groundwater inflow into excavations and basements, as well as for water resources management, consolidation, and dewatering [29][30][31][32][33], which are also the concerned geotechnical aspects for the deep excavation engineering in the Fourth Yangtze River Bridge sites.…”

Section: Permeability Evaluations Knowledge Of Hydraulicmentioning

confidence: 99%

Geotechnical Characteristic Assessments of Floodplain Soils Using SCPTU Data in Nanjing, China

Zhang

Tong

Wang

2022

Advances in Civil Engineering

View full text Add to dashboard Cite

In order to improve the understanding of such floodplain sediments and determining the validity of the tests, an extensive series of multifunctional seismic piezocone tests with pore pressure dissipation phase have been performed and supplemented with conventional borings, standard penetration, laboratory testing, and so forth. Sounding results from SCPTU were used to determine the stratigraphic profiles and the soil characteristics of two anchorage sites. A comparison of the boring and laboratory results with the CPTU profiles showed that the CPTU provided excellent information on soil stratigraphy and good guidance for determination of behavior and engineering implications of recent Yangtze River floodplain. At an area where local correlations based on modern SCPTU do not exist, methods for estimating coefficient of earth pressure at rest (K0), hydraulic permeability (kh), and equivalent stiffness (G0) associated with bridge foundation design are presented, compared, and verified. Results also illustrate the complexity and variability of the floodplain stratigraphy and soil properties, which means that the suggestions in this study should be updated when more local experience is obtained. This case study suggests that such enhanced seismic piezocone test should be considered as a potential tool and the instrument of first choice in site characterization programs for design of bridges founded on complicated soils in China.

show abstract

Section: Permeability Evaluations Knowledge Of Hydraulicmentioning

confidence: 99%

Geotechnical Characteristic Assessments of Floodplain Soils Using SCPTU Data in Nanjing, China

Zhang

Tong

Wang

2022

Advances in Civil Engineering

View full text Add to dashboard Cite

show abstract

“…erefore, field monitoring of structure deformations and ground movements plays a vital role in excavation process [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18]. Based on the reported field monitoring data, empirical and semiempirical methods have been identified as an appropriate approaches for the prediction of the excavation deformations [19][20][21][22][23][24][25][26][27][28][29][30][31][32][33][34][35][36][37][38]. ese studies not only have put forward the cognitions of excavations deformations, but also are available to designers who would verify the numerical analysis for complex excavations.…”

Section: Introductionmentioning

confidence: 99%

Sequential Measurement and Analysis of Large Underground Retaining Structures by Diaphragm Wall Anchor for the Spring Area

Shu

Sun

Zhang

et al. 2019

Advances in Civil Engineering

View full text Add to dashboard Cite

The performance of a diaphragm wall-anchor structure in spring area in Jinan city, China, is studied. Based on field measured data, lateral wall deflections, lateral soil movements, horizontal displacement of the capping beam, the maximum lateral wall deflection, ground surface settlement, lateral earth pressures on diaphragm wall, internal force of diaphragm wall, axial anchoring forces, settlements of adjacent building, and pore-water pressure are investigated. The results indicate that the maximum deflections of the lateral wall are 0.07%∼0.18% of the excavation depth (He). The ground surface settlement influence zone extends beyond 2.5He from the pit for this project. The δv,max ranges from 0.67 δh,max to 1.0 δh,max. The maximum lateral active earth pressures on diaphragm walls above the excavation bases range between 0.4He and 0.6He. The axial anchoring forces of the top three layers of anchors change significantly during the excavation while the axial anchoring force of the fourth layer of anchor is constant. The deformation of surrounding building has three stages, including a uniform subsidence stage, an accelerated subsidence stage, and a stable subsidence stage.

show abstract

SPT–CPTU Correlations and Liquefaction Evaluation for the Island and Tunnel Project of the Hong Kong–Zhuhai–Macao Bridge

et al. 2018

View full text Add to dashboard Cite

Determination of Hydraulic Conductivity Using a Modified Cylindrical-Half-Spherical Piezocone Model

Cited by 5 publications

References 36 publications

Geotechnical Characteristic Assessments of Floodplain Soils Using SCPTU Data in Nanjing, China

Geotechnical Characteristic Assessments of Floodplain Soils Using SCPTU Data in Nanjing, China

Sequential Measurement and Analysis of Large Underground Retaining Structures by Diaphragm Wall Anchor for the Spring Area

SPT–CPTU Correlations and Liquefaction Evaluation for the Island and Tunnel Project of the Hong Kong–Zhuhai–Macao Bridge

Contact Info

Product

Resources

About