Foundations In Tension

Foundations in Tension

Simplified Design of Building Foundations

A fast guide to solving common design problems in building foundations, now in a new edition. Includes new material on settlements, soil modification, pole foundations, braced excavations, waterfront foundations, and slope stabilization. Written for those without full training as structural or design engineers, covering all the basics, including soil mechanics, design of common foundation elements, and the relations between building and foundation design, all supported by extensive illustrations. Mathematics is kept to a minimum, being generally restricted to simple algebra, plane geometry, and plane trigonometry.

Intermediate Offshore Foundations

Intermediate foundations are used as anchors for floating platforms and ancillary structures, foundations for steel jackets, and to support seafloor equipment and offshore wind turbines. When installed by suction, they are an economical alternative to piling, and also may be completely removed. They are usually circular in plan and are essentially rigid when laterally loaded. Length to diameter embedment ratios, L/D, generally vary between 0.5 and 10, spanning the gap between shallow and deep foundations, although these are indicative boundaries and the response, rather than the embedment ratio, defines an intermediate foundation. The first chapters introduce foundation types; compare shallow, intermediate and deep foundation models and design; define unique design issues that make intermediate foundations distinct from shallow and deep foundations, as well as list their hazards that mainly occur during installation. Later chapters cover installation, in-place resistance and in-place response, and miscellaneous design considerations. There is no general agreement as to which design methods/models are appropriate, so models should only be as accurate as the data. Therefore, several reasonably accurate models are provided together with comprehensive discussion and advice. Example calculations and over 200 references are also included. This is the first book dedicated to the geotechnical design of intermediate foundations, and it will appeal to professional engineers specialising in the offshore industry.