Abstract: Expansive soils: problems and practice in foundation and pavement engineering , Expansive soils: problems and practice in foundation and pavement engineering , مرکز فناوری اطلاعات و اطلاع رسانی کشاورزی

Abstract: Fundamentals of vibration Waves in elastic medium Properties of dynamically loaded soils Foundation vibration Dynamic bearing capacity of shallow foundations Earthquake and ground vibration Lateral earth pressure on retaining walls Compressibility of soils under dynamic loads Liquefaction of soil Machine foundation on piles Seismic stability of earth embankments.

Abstract: The aim of this book is to present a "state of practice", particularly highlighting common problems, errors and omissions. Topics addressed include embankment dams, weathering processes, geotechnical investigations, and foundation grouting.

Abstract: Note: [149] Reference LCH-ARTICLE-1992-009View record in Web of Science Record created on 2007-04-24, modified on 2016-08-08

Abstract: A drainage system for minimizing the problems resulting from the effects of ground and surface water on below grade structures such as building foundations. The system utilizes horizontal drain pipes extending along the exterior of the foundation wall and vertical perforated drainage pipes which carry the water to the horizontal pipes, the vertical pipes being placed at spaced intervals along the foundation wall to drain the ground water into the horizontal drain pipe.

Abstract: Preface. 1. Strip Foundation in Elastic Half-Space. Flexible strip foundation vertical uniform load homogenous soil. Flexible strip foundation vertical triangular or trapezoidal load. Flexible strip foundation horizontal uniform load. Flexible strip foundation non homogenous soil. Strip foundation of any rigidity. 2. Strip Foundation Layered Half-Space. Flexible strip foundation in a two-layered system vertical uniform load. Rigid strip foundation in a two-layered system. Strip foundation of any rigidity. 3. Strip Foundation Homogenous Layer of Finite Thickness. Flexible strip foundation in an isotropic layer of finite thickness vertical uniform load. Flexible strip foundation in an isotropic layer of finite thickness horizontal uniform load. Flexible strip foundation anisotropic layer of finite thickness. Rigid strip foundation in an isotropic layer of finite thickness. Rigid strip foundation anisotropic layer of finite thickness. Strip foundation of any rigidity in an isotropic layer of finite thickness. 4. Strip Foundation in a Layered Soil of Finite Thickness. Flexible strip foundation vertical uniform load. Rigid strip foundation. Strip foundation of any rigidity. 5. Circular Foundation in an Elastic Half-Space. Flexible circular foundation vertical uniform load homogenous soil. Rigid circular foundation vertical load homogenous soil. Circular foundation non-homogenous soil. Circular foundation of any rigidity. 6. Circular Foundation in a Layered Half-Space. Flexible circular foundation vertical uniform load two-layered system. Rigid circular foundation. Circular foundation of any rigidity. 7. Circular Foundation Homogenous Layer of Finite Thickness. Flexible circular foundation in an isotropic layer of finite thickness. Flexible circular foundation in an anisotropic layer of finite thickness. Rigid circular foundation in an isotropic layer of finite thickness. Rigid circular foundation in an anisotropic layer of finite thickness. Circular foundation of finite rigidity. 8. Circular foundation in a Layered Soil of Finite Thickness. Flexible circular foundation vertical uniform load. Rigid circular foundation in a two layer soil system of limited thickness. Circular foundation of any rigidity 9. Rectangular Foundation in an Elastic Half-Space. Flexible rectangular foundation vertical uniform load. Flexible rectangular foundation horizontal uniform load. Rigid rectangular foundation. Rectangular foundation of any rigidity. 10. Rectangular Foundation, Homogenous Layer of Finite Thickness. Flexible rectangular foundation in an isotropic layer of finite thickness vertical load. Flexible rectangular foundation in an isotropic layer of finite thickness horizontal load. Rigid rectangular foundation in an isotropic layer of finite thickness vertical load. Rectangular foundation of any rigidity homogenous layer of finite thickness. 11. Ring Foundations. Flexible ring foundation in an isotropic layer.

Abstract: Geotextiles and geogrids are now being used extensively in many civil engineering construction works. This study presents some laboratory model test results for the ultimate bearing capacity of an isolated, and two closely-spaced, strip foundations resting on unreinforced sand, and sand reinforced with layers of geogrid. Based on the model test results, the variation of the group efficiency with the centre-to-centre spacing of the foundation has been determined.

Abstract: The large, extremely flat, saline, evaporative areas situated either along the coasts or farther inland of many arid, semi-tropical countries are known by the word 'sabkha'. The main distinguishing features of sabkha are its heterogeneous matrix and its highly concentrated ground-water. These characteristics of sabkhas contribute to many unresolved geotechnical problems which could hamper the performance of foundations. In an attempt to assess the safety and serviceability of foundations in eastern Saudi sabkha environments, a full-scale research was conducted to: (i) study the sabkha, its load-bearing and compressibility characteristics as well as other relevant geotechnical properties to assess the safety of foundations; and (ii) investigate the interaction between foundation materials and chloride and/or sulfate salts in the sabkha to evaluate the performance of plain and blended cements in resisting reinforcement corrosion and sulfate attack to assess the durability of foundations. Results of this research indicate that the surficial sabkha soil is very loose and possess low strength. Some standard techniques, such as sieve and hydrometer, permeability and consolidation, are shown to be inappropriate. The collapse potential of sabkha, as determined by a modified oedometer, rather than its compressibility, is classified as 'very severe trouble'. Silica fume and BFS blended cements exhibited deterioration to a higher degree than other cements in both pure sulfate and high sulfatechloride environments. The chloride beneficiation for these two cements is only marginal because of the excessive magnesium decomposition of C-S-H due to the lower CH content, which is shown to be unhampered by the presence of chloride ions. However, reinforcement corrosion, as determined by time to initiation of corrosion and corrosion current density, is much lesser in silica fume and BFS cements due to their denser structure. The concomitant presence of sulfate ions aggravated the chloride-induced corrosion. Field results indicated that reinforcement corrosion in these two cements was 32 to 21 times lower than that in plain cements. These results indicated that the high performance blended cements such as silica fume and BFS blended cements can be used in sabkha environment. However, water-resistant epoxy coatings should be applied on these structures if the magnesium sulfate concentration is high.

Abstract: This paper investigates the seismic behaviour of a typical wall-type reinforced concrete building with a footing that is unable to develop the flexural wall capacity. Nonlinear dynamic analysis is ...

Abstract: A method and device for diverting water away from a building foundation and insulating the soil surrounding the foundation The method includes excavating a trench in the soil at least about a portion of the perimeter of a new or existing building foundation, the trench having a predetermined depth, a first side wall defined by the building foundation, a bottom surface defined by the soil having a predetermined slope extending away from the building foundation a predetermined distance and a second side wall opposite the first side wall and defined by the soil A first insulated waterproof diverter member is placed within a portion of trench for diverting water away from the foundation and reducing the frost penetration depth within the soil surrounding the foundation The diverter member includes a first portion positioned against the foundation defining the first side wall of the trench and a second portion positioned against the bottom surface of the trench and sloping outwardly away from the first side wall to a position proximate the second side wall A readily installable, removable and substantially waterproof connecting member is provided for connecting the diverter member to the foundation, preventing water flow between the diverter member and the foundation and enabling removal of the connecting member to allow access to the foundation for inspection purposes and filling the trench above the diverter member with soil to a desired level

Abstract: This paper describes two new types of foundation systems for offshore structures which opens for a wide range of applications. The main topics highlighted are design principles, results from model tests and observed behaviour during offshore installation.

Abstract: A tie extends from the lower end of a roof rafter to the building and temporarily supports the roof rafter during times of expected high loads, such as during hurricanes. The tie is a metal strap having ends which are fastened respectively to the lower end of the roof rafter and to the building, either to a vertical wall or to the foundation.

Abstract: Vertical cylindrical tanks for bulk storage of oil and liquefied gas are sometimes constructed on soils that are susceptible to settlement. The types of foundation settlement and their structural e...

Abstract: A post to foundation connection for joining a wood post to an anchor bolt embedded in a concrete foundation after the concrete has hardened. The post to foundation connection includes a foundation connector which is formed from a single sheet metal blank which provides post support on a pair of post support seat members raised above the top surface of the foundation and supported by at least four leg members. Uplift resistance is provided by attaching the foundation connector to the embedded anchor bolt by a nut and washer which bears against a base member formed in the foundation connector. Attachment to the post is provided by four post connection members integrally attached to the ends of the post support seat members.

Abstract: Introducing a new hobby for other people may inspire them to join with you. Reading, as one of mutual hobby, is considered as the very easy hobby to do. But, many people are not interested in this hobby. Why? Boring is the reason of why. However, this feel actually can deal with the book and time of you reading. Yeah, one that we will refer to break the boredom in reading is choosing mathematical foundation of parallel computing as the reading material.

Abstract: : The report deals with the design of foundations against frost action in Europe, particularly as practiced in the Nordic countries. It describes how insulation is used in association with foundations of structures as part of a process of thermal engineering to produce safe and economic designs for various structures. The use of insulation enables heat management that allows shallower foundation depths and prevents damage from frost action. Results are given from the Norwegian Frost I Jord research project and the work at Lund University, Sweden, both of which provided the basis for the design guidelines of Norway, Sweden and Finland. Detailed slab-on-grade designs ensure that frost heave does not occur. Consideration is given to the design of foundations with a crawl space or basement, with their problems of sidegrip and horizontal frost pressure. Frost protection for unheated buildings is described, usually involving the use of insulation and drainage layers below the foundation with ground insulation nearby to retain soil heat. Designs with open foundations are described as well as foundations for retaining walls and bridges. Frost protection required during winter construction is detailed. Building foundations, Foundation design, Frost heave, Europe, Frost action.