Closed-Ended Pipe Piles: Testing and Piling in Calcareous Sand

Mello, Jayme Ricardo C. de; Amaral, Cláudio dos Santos; Costa, Annielson de Souza; Rosas, Maria Marta C.; Coelho, P.S. Decnop; Porto, Elisabeth C.

doi:10.4043/6000-ms

Cited by 8 publications

(4 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Calcareous sand is commonly found on continental shelves and coastlines between 30ºN and 30ºS (Fig. 1), such as in the South China Sea (Wang et al 2017a), the Persian Gulf (McClelland 1988), the Northwest Continental Shelf of Australia (King and Lodge 1988), the Campus and Sergipe basins in southern Brazil (Mello et al 1989), the Red Sea in the Middle East (Hagenaar 1982;Hakami and Abu Seif 2019), the Gulf of Mexico in Central America, and the Caribbean Sea (Dutt and Ingram 1988). Calcareous sand is also distributed in the Bass Strait (Wiltise et al 1988).…”

Section: Introductionmentioning

confidence: 99%

Laboratory Plate Loading Test on Calcareous Sands from a Hydraulic fill Reef Island

Wang

Cui

et al. 2021

Preprint

View full text Add to dashboard Cite

The landforms and vertical strata distribution characteristics of Yongxing Island show that the reclaimed reef island is characterized by soft upper strata (calcareous sand) and hard lower strata (reef limestone). In this study, a series of plate loading tests was conducted to examine the influences of particle gradation, compactness, and moisture condition on the bearing mechanism and deformation properties of the calcareous sand foundation. When the foundation is shallowly buried, the relative density range corresponding to a calcareous sand foundation exhibiting local shear failure is narrower than that of a terrigenous sand foundation. For the same compactness, dry calcareous medium sand has a much larger bearing capacity and deformation modulus than dry calcareous fine sand. The effect of water on the bearing capacity of the calcareous medium sand is greater than the effect on calcareous fine sand. Its weak cementation and low permeability make the initial deformation of saturated calcareous fine sand slightly smaller than that under dry conditions. The stress dispersion angle of the calcareous medium sand foundation is 52°, which is larger than that of terrigenous sand. A larger stress dispersion angle leads to a higher bearing capacity and deformation modulus than those of terrigenous sand.

show abstract

Section: Introductionmentioning

confidence: 99%

Laboratory Plate Loading Test on Calcareous Sands from a Hydraulic fill Reef Island

Wang

Cui

et al. 2021

Preprint

View full text Add to dashboard Cite

show abstract

“…Since the late 1970s there has been increasing interest in understanding the behavior of cemented calcareous sand which is widespread in ocean floor [1][2][3][4][5][6][7][8][9]. In the zone distributed calcareous sand, the design of piles is different with that in traditional soil zone [10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Cementing Material on Mechanical Property of Calcareous Sand

Lu¹

2012

TOOEJ

View full text Add to dashboard Cite

It is difficult to obtain high quality samples of natural material covering a range of densities and degree of cementation, so study on the sample preparation techniques with similar mechanical properties of natural samples are very important. Experiments were carried out to study the effects of cementation of different materials on the mechanical properties of calcareous sand, e.g., the effects of contents and types of cementation materials on the strength and the characteristics of stress-strain. It is shown that Portland cement is a good cementation agent, compared to calcite and gypsum. The strength of calcareous sand increases with the increase of Portland cement content.

show abstract

“…In the tropic marine area, such as in the zone of South China Sea, the Australia Sea, the calcareous sand is distributed widely. This type of sand has special characteristics: crushing and disintegration at low stresses compared with siliceous particles, macropores and cementation [15].…”

Section: Introductionmentioning

confidence: 99%

Response of the Bucket Foundation in Calcareous Sand under Horizontal Dynamic Load

Wang¹,

Lu²,

Shi³

2010

TOOEJ

View full text Add to dashboard Cite

Experiments to determine the horizontal static bearing capacity are carried out first. The static bearing capacity is a reference for choosing the amplitudes of dynamic load. Then a series of experiments under dynamic horizontal load are carried out in laboratory to study the influences of factors, such as the scales of bucket, the amplitude and frequency of load, the density of soils etc.. The responses of bucket foundations in calcareous sand under horizontal dynamic load are analyzed according to the experimental results. The displacements of bucket and sand layer are analyzed.

show abstract

Closed-Ended Pipe Piles: Testing and Piling in Calcareous Sand

Cited by 8 publications

References 0 publications

Laboratory Plate Loading Test on Calcareous Sands from a Hydraulic fill Reef Island

Laboratory Plate Loading Test on Calcareous Sands from a Hydraulic fill Reef Island

Cementing Material on Mechanical Property of Calcareous Sand

Response of the Bucket Foundation in Calcareous Sand under Horizontal Dynamic Load

Contact Info

Product

Resources

About