Overcoming Geotechnical Challenges in Rail and Metro Projects Using Ground Improvement

2019 ◽  
pp. 539-556
Author(s):  
Jonathan Daramalinggam ◽  
Madan Kumar Annam
Keyword(s):  
Ground Improvement

Innovative Techniques in Ground Improvement

2012 ◽  
Vol 2 (10) ◽  
pp. 1-2
Author(s):  
Mohhamad Meekail Khan Mohhamad Meekail Khan ◽  
◽  
A.K.Dube A.K.Dube
Keyword(s):  
Ground Improvement ◽  
Innovative Techniques

Ground Improvement. Recycle of Construction Sludge in Soil-Cement Diaphragm Walls.

2000 ◽  
Vol 49 (1) ◽  
pp. 46-49
Author(s):  
Takeo SUZUKI ◽  
Toshimitsu KUNITO ◽  
Motohiro NISHI
Keyword(s):  
Ground Improvement ◽  
Soil Cement ◽  
Diaphragm Walls

scholarly journals Design and Construction of a Tailings Dam over an Ancient Tailings Facility at La Parrilla Mine

2021 ◽  
Author(s):  
José Miguel Galera ◽  
Fernando de la Fuente ◽  
Juan García ◽  
Manuel Calleja ◽  
Vanesa Pozo
Keyword(s):  
Ground Improvement ◽  
Tailings Dam ◽  
Main Design ◽  
Total Capacity ◽  
Western Spain ◽  
Design And Construction

AbstractLa Parrilla is a tungsten and tin mine located in western Spain. The tailings facility has a total capacity for 3 Mm3 and will be executed in four different phases. The main constraint for the design and construction of the tailings dam is that it has been constructed over an existing one from the 1980s. The construction activities involved removal and substitution of the old tailings from the southern portion of the facility, ground improvement with gravel columns over an area of about 10,000 m2, and construction of the dyke’s dam. This article describes the main design and construction aspects, including monitoring, until the dam’s completion in June 2019.

scholarly journals Visual evaluation of relative deep mixing method type of ground-improvement method

2021 ◽  
pp. 100233
Author(s):  
Koki Nakao ◽  
Shinya Inazumi ◽  
Toshiaki Takaue ◽  
Shigeaki Tanaka ◽  
Takayuki Shinoi
Keyword(s):  
Ground Improvement ◽  
Visual Evaluation ◽  
Deep Mixing ◽  
Improvement Method ◽  
Mixing Method

scholarly journals Dynamic response of timber pile ground improvement: 3D numerical simulations

2021 ◽  
Vol 143 ◽  
pp. 106614
Author(s):  
Hao Wang ◽  
Armin W. Stuedlein ◽  
Arijit Sinha
Keyword(s):  
Dynamic Response ◽  
Numerical Simulations ◽  
Ground Improvement

scholarly journals Numerical Analysis on Performance of the Middle-Pressure Jet Grouting Method for Ground Improvement

Geosciences ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 313
Author(s):  
Shinya Inazumi ◽  
Sudip Shakya ◽  
Takahiro Komaki ◽  
Yasuharu Nakanishi
Keyword(s):  
Life Cycle ◽  
Comparative Analysis ◽  
Ground Improvement ◽  
Cement Slurry ◽  
Mechanical Agitation ◽  
High Quality ◽  
Jet Grouting ◽  
Computer Aided ◽  
Improvement Method ◽  
Cae System

This study focused on the middle-pressure jet grouting method, which has a complicated development mechanism for the columnar soil-improved body, with the aim of establishing a computer-aided engineering (CAE) system that can simulate the performance on a computer. Furthermore, in order to confirm the effect of middle-pressure jet grouting with mechanical agitation and mixing, a comparative analysis was performed with different jet pressures, the development situation was visualized, and the performance of this method was evaluated. The results of MPS-CAE as one of the CAE systems showed that the cement slurry jet ratio in the planned improvement range, including the periphery of the mixing blade, by the middle-pressure jet grouting together with the mechanical agitation and mixing was increased and a high quality columnar soil-improved body was obtained. It is expected that the introduction of CAE will contribute to the visualization of the ground, and that CAE will be an effective tool for the visual management of construction for ground improvement and the maintenance of improved grounds during the life cycle of the ground-improvement method.

Uplift and Settlement Prediction Model of Marine Clay Soil e Integrated with Polyurethane Foam

2019 ◽  
Vol 9 (1) ◽  
pp. 481-489
Author(s):  
D.C. Lat ◽  
I.B.M. Jais ◽  
N. Ali ◽  
B. Baharom ◽  
N.Z. Mohd Yunus ◽  
...  
Keyword(s):  
Polyurethane Foam ◽  
Clay Soil ◽  
Ground Improvement ◽  
Soft Soil ◽  
Soft Clay ◽  
Effective Thickness ◽  
Marine Clay ◽  
Uplift Pressure ◽  
Pu Foam ◽  
Improvement Method

AbstractPolyurethane (PU) foam is a lightweight material that can be used efficiently as a ground improvement method in solving excessive and differential settlement of soil foundation mainly for infrastructures such as road, highway and parking spaces. The ground improvement method is done by excavation and removal of soft soil at shallow depth and replacement with lightweight PU foam slab. This study is done to simulate the model of marine clay soil integrated with polyurethane foam using finite element method (FEM) PLAXIS 2D for prediction of settlement behavior and uplift effect due to polyurethane foam mitigation method. Model of soft clay foundation stabilized with PU foam slab with variation in thickness and overburden loads were analyzed. Results from FEM exhibited the same trend as the results of the analytical method whereby PU foam has successfully reduced the amount of settlement significantly. With the increase in PU foam thickness, the settlement is reduced, nonetheless the uplift pressure starts to increase beyond the line of effective thickness. PU foam design chart has been produced for practical application in order to adopt the effective thickness of PU foam within tolerable settlement value and uplift pressure with respect to different overburden loads for ground improvement works.

scholarly journals Seismic performance of group pile foundation with ground improvement during liquefaction

2021 ◽  
Author(s):  
Yasuo Sawamura ◽  
Keita Inagami ◽  
Tomohiko Nishihara ◽  
Takashi Kosaka ◽  
Masahiro Hattori ◽  
...  
Keyword(s):  
Seismic Performance ◽  
Pile Foundation ◽  
Ground Improvement ◽  
Group Pile
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