... responsibility anchor mooring system sustainable development subsea system floating production systems torpedo anchor installation penetration axial capacity coefficient offshore technology conference soil strength efficiency mass coefficient lateral capacity model parameter loading diameter...

... The calculated axial capacity of the conductor depends on the selection of the soil strength, the alpha value, and the surface area of the conductor. For typical well foundations, the end bearing of the conductor is largely neglected due to the drilling debris left in the hole, and the required...

... structural stability for buckling in the conductor. Petrobras has a large experience in jetting wells of Campos and Espírito Santo Basins, but the type of soil in these areas is very distinct from the Santos Basin's soil. Besides that, the wells are deeper and requires a higher axial capacity to withstand...

.... The critical response of the well can occur after the moment that the load on the conductor overcomes its axial capacity, which means that the foundation resistance, derived from all t-z curves representing the soil-conductor adhesion, is fully mobilized. In this scenario, the exceeded load is mainly...

... of new designs. procedure installation deepwater drag anchor loading mechanism information axial capacity suction pile slender pile anchor upstream oil & gas end bearing penetration mooring system strength friction anchor pile offshore technology conference subsea system...

... engineering texas axial pile capacity reserves evaluation recommendation model uncertainty axial capacity probabilistic analysis upstream oil & gas subsea system analysis method variation dense sand load test calculation guideline strength coefficient api rp2a OTC 7996 Model...

... and calibrate new design methods that have been developed from recent research. As an example, the findings are applied to a study into the axial capacity of piles driven at the nearby Leman AD H site. The Lemon soil conditions are described, and the driving records and test result are presented. The new...

... calibration prediction capacity estimate hurricane andrew pile foundation bias factor caisson upstream oil & gas procedure jacket platform foundation posterior distribution likelihood function artificial intelligence wave height platform lateral axial capacity foundation bias factor...

... ABSTRACT In the offshore, most foundations are steel pipe piles and most of them are designed using the API RP 2A guidelines. For axial capacity of piles in sand the current guidelines in many cases show definite discrepancies when compared against actual load capacities of piles. An updated...

... joint configuration loaded to failure by an axial branch compressive load, in the presence of a hydrostatic pressure equal to 90% of the joint collapse pressure. It can be seen that there is a substantial reduction in joint axial capacity caused by the presence of hydrostatic pressure. A third curve...

... Significant efforts were made in the past decade to improve the methods of determining the axial capacity of offshore piles in clay. These include development of an extensive pile load test data base (Olson and Dennis 1 ) and related statistical studies on the reliability of various common empirical design...

... a probability distribution function for five parameters used in predicting the axial capacity of driven piles in sand. The parameters investigated were: limiting unit end bearing, limiting unit skin friction, bearing capacity factor, pile-soil friction angle, and coefficient of lateral earth pressure...

..., and presented herein, includes : (1) the compression K-brace effective length and its effect on the ultimate axial resistance of the compression K-braces. resistance upstream oil & gas thickness diagonal compression diagonal axial load test frame axial capacity brace effective length factor...

... the unit skin friction. INTRODUCTION The axial capacity of piles is usually determined from results of load tests, from dynamic formulae or from the static method. For the design of deep penetration piles being used for foundations of jacket-type fixed offshore platforms, the static method is generally...

... ABSTRACT Significant advances in the development of a general effective stress method for the prediction of the axial capacity of driven piles in clay are reported. These advances are in the modeling and prediction of stress changes due to pile installation and due to reconsolidation after...

... ABSTRACT A companion paper by Esrig et al {1977} describes the initial development of a general effective stress method for the prediction of axial capacity for driven piles in clay. A dominant physical characteristic of driven piles in clay is a zone of severely remolded soil around the pile...

... of parameters that may influence the axial capacity of piles which support offshore platforms: Soil Conditions - the type of soils Or foundation materials encountered, their physical properties and stress state, and vertical and horizontal variability. Loading Environment - the vertical and lateral forces...

... Abstract This paper describes a method for increasing the axial capacity of friction piles embedded in clay soils. The proposed method consists of increasing the shear strength, and consequently the soil-pile adhesion, of the soil around a pile. This is accomplished by draining water from...