scholarly journals Static and dynamic plate loading tests of stabilized soil samples used for riverbank consolidation

2021 ◽  
Vol 1138 (1) ◽  
pp. 012032
Author(s):  
A-Cs Nagy ◽  
N M Ilieş ◽  
A-P Cîrcu ◽  
V-C Ciubotaru ◽  
B M Crăciunescu
Keyword(s):  
Soil Samples ◽  
Stabilized Soil ◽  
Loading Tests ◽  
Plate Loading

Foundation design for the Skydome Stadium, Toronto

1989 ◽  
Vol 26 (1) ◽  
pp. 22-33 ◽  
Author(s):  
K. Y. Lo ◽  
B. H. Cooke
Keyword(s):  
Size Effect ◽  
Laboratory Tests ◽  
Geological Mapping ◽  
Foundation Design ◽  
Field Plate ◽  
Deformation Properties ◽  
Rock Mass Modulus ◽  
Strength And Deformation ◽  
Loading Tests ◽  
Plate Loading

The construction of the Skydome Stadium will provide Toronto with the first multipurpose stadium in the world with a retractable roof. The foundation for the structure, with a diameter of about 210 m and a height of about 86 m, will be supported by several hundred columns, about 100 of which will have loadings up to 50 000 kN. The foundation rock is a shale with numerous highly weathered zones and clay seams. Laboratory tests to investigate the strength and deformation properties of these weak layers were performed. Field plate loading tests at two locations with three different size plates were also carried out to study the size effect on the mass modulus of the rock. This paper presents the results of detailed geological mapping and field and laboratory tests together with design considerations for the foundations. The field acceptance criteria, developed to ensure that the differential settlements between foundations are within specified limits, are also discussed. Key words: Skydome, shale, clay seams, plate loading tests, rock-mass modulus, size effect, layered rocks.

scholarly journals Study of Improving Soil Using Permit, Corn Ash and Sodium Silicate

2021 ◽  
Vol 921 (1) ◽  
pp. 012042
Author(s):  
W Erwanto ◽  
R. R Parea. ◽  
A Ermitha.
Keyword(s):  
Bearing Capacity ◽  
Sodium Silicate ◽  
Soil Samples ◽  
Laboratory Methods ◽  
Palm Fiber ◽  
The Road ◽  
Soil Physical Characteristics ◽  
Stabilized Soil ◽  
Experimental Laboratory ◽  
On The Road

Abstract Soil that has low bearing capacity has a bad impact on the construction that is built on it as a result of which the building is easily damaged such as lifting the foundation on the building and causing cracks and shifting on the road. This research uses experimental laboratory methods. Soil samples used were taken from Lembang Tondon Siba’ta, Tondon District. Corn cobs were taken from Sa’dan Marante, Sodium silicate is obtained from chemical figures and palm fiber taken from Buntu Tagari and then tested for soil physical characteristics and soil bearing capacity in soil samples with a mixture of sodium silicate, corncob ash, palm fiber and soil without mixture. know the bearing capacity of the soil. The results of the research on stabilized soil by adding 0.2% palm fiber, 2% corncob ash and 3% sodium silicate obtained an increase in soil bearing capacity of 9.73% from the original soil and the addition of 0.2% palm fiber, 4% corncob ash and 3% sodium silicate.

scholarly journals Improvement of cement stabilized structural lateritic with pulverized snail shell

2019 ◽  
Vol 14 (2) ◽  
pp. 95-106
Author(s):  
Oluwaseun Adetayo ◽  
Olugbenga Amu ◽  
Sunday Alabi
Keyword(s):  
Cement Content ◽  
Soil Classification ◽  
Soil Samples ◽  
Lateritic Soil ◽  
Partial Replacement ◽  
Dry Density ◽  
Maximum Dry Density ◽  
Snail Shell ◽  
Foundation Construction ◽  
Stabilized Soil

AbstractThis study investigated the suitability of pulverized snail shell (PSS) as partial replacement of cement stabilized soil in foundation constructions. Preliminary and engineering tests were carried out on the soil samples. The optimum cement content fixed at 11% in correlation to Unified Soil Classification System, the PSS was introduced at varying percentages of 2%, 4%, 6%, 8% and 10%. Results revealed that, addition of PSS and 11% cement to lateritic soil caused a reduction in both liquid limits and plasticity index and an increased in plastic limits for all samples. Engineering tests showed the maximum dry density at optimum cement increased from 1493.34 ± 103.58 kg.m−3 to 1632 ± 435.81 kg.m−3 for sample A; 1476.77 ± 367.51 kg.m−3 to 1668 ± 202.58 kg.m−3 for sample B; 1460.77 ± 623.58 kg.m−3 to 1651 ± 135.45 kg.m−3 for sample C. The CBR recorded highest value at 4%PSS optimum cement for all samples. The addition of pulverized snail shell increased the strength of cement stabilized lateritic soil for structural foundation construction.

Influence of Carbon Nanofibers on the Shear Strength and Comparing Cohesion of Direct Shear Test and AFM

2017 ◽  
Vol 49 ◽  
pp. 108-126 ◽  
Author(s):  
Jamal M.A. Alsharef ◽  
Mohd Raihan Taha ◽  
Ramez A. Al-Mansob ◽  
Tanveer Ahmed Khan
Keyword(s):  
Shear Strength ◽  
Carbon Nanofibers ◽  
Correlation Coefficients ◽  
Dry Weight ◽  
Soil Samples ◽  
Engineering Properties ◽  
Coarse Grained ◽  
Statistical Prediction ◽  
Residual Shear Strength ◽  
Stabilized Soil

The stabilization and enhancement of the engineering properties of fine and coarse grained soil has heavily relied on reinforcement and admixture materials. This study discusses the effect of the additive of Carbon nanofibers (CNF) on the characteristics of soils in terms of shear strength. The content of CNF was changed within the range of 0.05 to 0.2% by total dry weight of the reinforced samples. In achieving the objective of minimizing the number of experimental runs and thus conserve material, time as well as overall cost, the Box–Behnken approach was chosen as the method for statistical prediction. The scanning electron microscopy (SEM) and Atomic force microscopy (AFM) has been utilized in studying features of CNF in stabilized soil samples and force at the origin of the cohesion (c) of soil. Test results reveal that the increases peak and residual shear strength of the reinforcement soil samples were increased with an increase in the CNF content. The pre-eminence of ionic correlation forces in the cohesion of soil was confirmed by the force (cohesion) measurements by (AFM). The statistical prediction’s relatively high correlation coefficients justified the results.

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