TL;DR: In this paper, the authors present a field test for foundation footings on soft clay or Expansive Clay and provide a detailed description of the results of the field test and its implications on the foundation's bearing capacity.
Abstract: SITE INVESTIGATION General Information Topography, Geology, Hydrology, and Geomancy SUBSOIL EXPLORATION Direct Methods Indirect Methods Test Holes Sampling FIELD TESTS Field Test for Foundation Design Field for Hydraulic Structures CLASSIFICATION AND IDENTIFICATION Field Identification and Classification Identification and Description LABORATORY SOIL TEST Scope of Testing Interpretation of Test Results FOUNDATION DESIGN Significance of Test Results Design Load Settlement Heave Predication Building Additions FOOTINGS ON CLAY Allowable Bearing Capacity Stability of Foundation Footing on Soft Clay or Expansive Clay FOOTINGS ON SAND Allowable Bearing Capacity Settlement of Footings Rational Design of Footing Foundation on Sand FOOTINGS ON FILL Foundations on Fill Compaction Fill Used as Form Work PIER FOUNDATIONS Load Bearing Capacity Skin Friction Capacity Rational Pier Design Drilled Pier in Expansive Soils Pier Construction Pier Inspection LATERALLY LOADED PIERS Design Criteria Limiting Conditions Ultimate Lateral Resistance of Cohesive Soils Ultimate Lateral Resistance of Cohesionless Soils Working Load of Drilled Piers in Cohesive Soils Working Load of Drilled Piers in Cohesionless Soils Pressuremeter Tests Applications DRIVEN PILE FOUNDATION Allowable Load in Piles in Cohesionless Soils Allowable Load in Piles in Cohesive Soils Pile Formulas Pile Groups Negative Skin Friction Pile Load Tests DRAINAGE Method of Drainage Groundwater Subdrain Case Example SLOPE STABILITY Methods of Analysis Stability of Loess Stability of Shale Natural Earth Movement Man-Made Slopes Factor of Safety Case Examples DISTRESS INVESTIGATION Historical Investigation Cause of Distress Structural Movement Distress of Major Structures CONSTRUCTION Scope of Contractor Contract and Specification Foundation Construction Construction Control The Technician LEGAL ASPECT Liability Claims Scope of Liability Suits Change of Conditions Expert Witness The Outlook REPORT WRITING Type of Report Geotechnical Report Engineering Use of Words INDEX
TL;DR: In this paper, a method for house building by using the construction elements prepared outside of the building site is described, where the elements are then mounted onto a foundation at a building site to form a housing structure.
Abstract: The subject of the invention is a method house building by using the construction elements prepared outside of the building site. The method consists of preparing the construction elements including beams, studs, and boards outside of the building site. The elements are then mounted onto a foundation at the building site to form a housing structure.
TL;DR: In this article, the authors investigated the dynamic response and reliability analysis of a large offshore structure under the action of sea waves, currents and earthquakes, and found that the severe reaction forces on the foundation system have been reduced by adopting large-diameter members of buoyancy-type near the sea bottom.
TL;DR: In this paper, the use of traditional methods for establishing road foundations makes root growth from trees planted in holes within the foundations or close to them impossible, and the performance of commonly used u...
Abstract: The use of traditional methods for establishing road foundations makes root growth from trees planted in holes within the foundations or close to them impossible. The performance of commonly used u...
TL;DR: The assembly of Building Safety and Health Site Investigation Foundation Basement Construction Materials Handling and Mechanization Wall and Floor Construction External Wall Construction Roof Construction as mentioned in this paper has proposed a framework for building safety and health site investigation.
Abstract: Assembly of Building Safety and Health Site Investigation Foundation Basement Construction Materials Handling and Mechanization Wall and Floor Construction External Wall Construction Roof Construction.
TL;DR: In this article, a motor to drive a useful load in a machine has a driven part, a reaction part (30) which works alternately with the driving part and a foundation (40) for rigid fastening of the motor to the machine.
Abstract: A motor to drive a useful load in a machine has a driven part 920) which is assigned to the useful load, a reaction part (30) which works alternately with the driving part (20) and a foundation (40) for rigid fastening of the motor to the machine There is a bearing device (110-200) between the reaction part and the foundation in which the reaction part is supported so that with a movement of the driven part, the reaction part can execute a counter-movement There are elastic spring devices (100) which engage the foundation on one hand and the reaction part on the other hand The elastic devices are integrated into the bearing device Damping devices are provided between the foundation and the reaction part
TL;DR: In this paper, a method and system for providing the foundation pad and stem wall structure for mobile homes includes the steps of excavating a building site to form a substantially level building area; erecting simple concrete formwork to define and contain the pouring of a concrete slab foundation pad; positioning and leveling a plurality of stem wall support blocks at predetermined positions about and spaced inwardly of the concrete formworks, the support blocks having an upper surface height which is less than the height of the formwork and hence the thickness of the future concrete slab, placing precast concrete stem wall sections on
Abstract: A method and system for providing the foundation pad and stem wall structure for mobile homes includes the steps of excavating a building site to form a substantially level building area; erecting simple concrete formwork to define and contain the pouring of a concrete slab foundation pad; positioning and leveling a plurality of stem wall support blocks at predetermined positions about and spaced inwardly of the periphery of the concrete formwork, the support blocks having an upper surface height which is less than the height of the formwork and hence the thickness of the future concrete slab foundation pad; placing precast concrete stem wall sections on the level support blocks to form an upright perimeter wall; and pouring the concrete slab foundation pad defined by the concrete formwork to embed the support blocks and bottom edge portion of the precast stem walls in the foundation pad thereby positively and rigidly fixing the stem wall and foundation pad together when the poured concrete cures.
TL;DR: In this article, side struts (68 ) are positioned on ground anchors (40, 42 ) at intervals along the lower side edges of a manufactured home to decrease the likelihood of tilting, the manufactured home in response to wind and other lateral forces.
Abstract: Side struts ( 68 ) are positioned on ground anchors ( 40, 42 ) at intervals along the lower side edges of a manufactured home ( 10 ). The side struts spread the “footprint” of support from the ground to the manufactured home, so as to decrease the likelihood of tilting, the manufactured home in response to wind and other lateral forces.
TL;DR: In this paper, the authors describe analysis procedures and system identification techniques for evaluating inertial soil-structure interaction effects on seismic structural response, and apply these analyses to empirically evaluate SSI effects using available strong motion data from a broad range of sites.
Abstract: Recent improvements in seismological source modeling, analysis of travel path effects, and characterization of local site effects on strong shaking have led to significant advances in both code-based and more advanced procedures for evaluating seismic demand for structural design. A missing link, however, has been an improved and empirically verified treatment of soil-structure interaction (SSI) effects on both the strong motions transmitted to structures and the structural response to these motions. This paper describes analysis procedures and system identification techniques for evaluating inertial SSI effects on seismic structural response. The analysis procedures are similar to provisions in some building codes but incorporate more rationally the influence of site conditions and the foundation embedment, flexibility, and shape on foundation impedance. Implementation of analysis procedures and system identification techniques is illustrated using a building shaken during the 1994 Northridge earthquake. The analysis procedures predict the observed SSI effects accurately. A companion paper applies these analyses to empirically evaluate SSI effects using available strong motion data from a broad range of sites and then develops general conclusions regarding SSI effects on seismic structural excitation and response.
TL;DR: In this paper, the authors examined and evaluated some common methods of foundation settlement prediction in the light of recent research and provided a recommendation on whether a method should be adopted, adapted, or discarded.
Abstract: This paper examines and evaluates some common methods of foundation settlement prediction in the light of recent research. Four common problems are considered: settlement of shallow foundations on clay, settlement of shallow foundations on sand, analysis of strip and raft foundations, and the settlement of pile groups. The outcome of the evaluation is a recommendation on whether a method should be adopted, adapted, or discarded. The crucial importance of appropriate assessment of the relevant geotechnical parameters is emphasized.
TL;DR: In this article, a crown-dimensioned crown was used to enclose an exposed portion of the anchor bolt and a disc-shaped base having legs depending therefrom, which was used for foundation anchor bolt protection.
Abstract: A protective device for foundation anchor bolts, the protective device having a crown dimensioned to enclose an exposed portion of the anchor bolt and a disc shaped base having legs depending therefrom.
TL;DR: Cement grouting technology for consolidating soils Just foamed concrete - An overview Design of steel fibre reinforced floors on foundation piles Improvements of bending loadbearing capacity by externally bonded plates as discussed by the authors.
Abstract: Cement grouting technology for consolidating soils Just foamed concrete - An overview Design of steel fibre reinforced floors on foundation piles Improvements of bending load-bearing capacity by externally bonded plates
TL;DR: The OTRC '99 Conference on Analysis, Design, Construction, and Testing of Deep Foundations as mentioned in this paper was held in Austin, Texas, April 29-30, 1999.
Abstract: This proceedings, Analysis, Design, Construction, and Testing of Deep Foundations , consists of papers presented at the OTRC `99 Conference held in Austin, Texas, April 29-30, 1999. While deep foundations are used extensively for the support of structures in both the terrestrial and marine environments, significant uncertainties still exist in predicting the field behavior of such foundations. This proceedings presents some of he latest research done in this area. The papers present research on such topics as the mechanics of pile foundation collapse, three-dimensional analysis, pile driving techniques, and suction caisson foundations.
TL;DR: A finite element analysis of a reinforced embankment-foundation system has been conducted using a coupled formulation and elastoplasticity theory in this paper, which has shown that the effectiveness of the reinforcement is dependent on its stiffness and the shear strength of the clay deposit.
TL;DR: In this article, a pier structure capable of precasting beams and floor slabs by a new joining method using steel pipes that can absorb horizontal pile errors in foundation piles, shortening the construction period, reducing construction costs, and ensuring quality is presented.
Abstract: (57) [Abstract] [Problem] A pier structure capable of precasting beams and floor slabs by a new joining method using steel pipes that can absorb horizontal pile errors in foundation piles, shortening the construction period, reducing construction costs, and ensuring quality And how to build it. SOLUTION: In a pier structure in which a lower part has a pile structure and a beam or a floor slab is provided in a vertical direction or a lateral direction in an upper part, the foundation pile 4 is provided. And one or many pre-attached outer steel pipes 10 having a diameter sufficiently larger than the diameter of the foundation pile 4 and having a length at least approximately the same as the diameter of the foundation pile 4, and a reinforcing bar 13 sufficiently embedded in the beam 5. A vertical or horizontal precast concrete beam 5 is installed such that the pile head 9 of the pile structure is covered with the outer steel pipe 10 and the joining steel bar, and the gap between the foundation pile 4 and the outer steel pipe 10 is filled with concrete or the like. Casting material 14 and joining bar 1 3 is characterized in that a load is transmitted between the foundation pile 4 and the longitudinal or lateral beam 5 by fixing the 3.
TL;DR: In this paper, an artificial ground structure capable of simplifying a work execution, shortening a work period, and suppressing destruction of nature as much as possible in an Artificial Ground structure used for building roads and parks on slanting surfaces was proposed.
Abstract: PROBLEM TO BE SOLVED: To provide an artificial ground structure capable of simplifying a work execution, shortening a work period, and suppressing destruction of nature as much as possible in an artificial ground structure used for building roads and parks on slanting surfaces. SOLUTION: To construct a connection part of foundation piles 4 and a beam 5, after the foundation piles 4 are driven, a socket member 13 comprising a connection member of a socket steel pipe 9 having diameters exceeding a foundation pile diameter and capable of offsetting a foundation pile 4 execution error and also having a length exceeding the foundation pile diameter and a steel beam member 5 is put on the head part of the foundation pile 4, and a filler such as concrete is filled into a clearance between the foundation piles 4 and the steel pipes 9 of the socket member 13. Then, a floor plate 6 is fixed onto the beam members so as to construct an artificial ground on an inclined surface.
TL;DR: In this article, an analysis of a case history of settlement damage to a masonry building, due to the construction of a nearby shaft, is presented, in which the non-linear behaviour of both the soil (a heavily overconsolidated clay) and the building is taken into account.
Abstract: An analysis of a case history of settlement damage to a masonry building, due to the construction of a nearby shaft, is presented. Three-dimensional finite element analysis is used, in which the non-linear behaviour of both the soil (a heavily overconsolidated clay) and the building is taken into account. Procedures are used to capture the construction process as realistically as possible. Comparisons are made between a variety of analyses (including separate analyses of the building and the soil, and a fully coupled analysis of the whole system), as well as with observations at the site. The principal comparisons are in terms of observed surface settlements and of the categories of cracking damage suffered by the masonry building. It is concluded that the analysis technique can model adequately the interaction between the building and the ground, but that details of settlement and damage pattems depend critically on assumptions about the structure and stiffness of the building and its foundation.
TL;DR: In this article, a method for effectively preventing liquefaction of a foundation of a large construction, by grouting, is proposed, where a ground region in the vicinity of a construction and a ground regions surrounding the former region, respectively, are formed.
Abstract: PROBLEM TO BE SOLVED: To provide a method for effectively preventing liquefaction of a foundation of a large construction, by grouting. SOLUTION: A consolidated zone A and a consolidated zone B are formed in a ground region in the vicinity of a construction and a ground region surrounding the former region, respectively, by grouting. The consolidated zone B is formed more hardly than the consolidated zone A, in a manner vertically enclosing the periphery of the consolidated zone A.
TL;DR: In this article, a new seismic design method of pile foundation, the model used in push-over analysis for large deformation and the hysteresis rule of soil-pile system, is presented.
Abstract: In seismic design of pile foundation, it is important to evaluate the deformation property of soil and the damage process of a pile member suffering large deformation, since the design for earthquake motions in the new design code is larger than those in the old one. Moreover, as stipulated in the new code, dynamic analysis methods should be used for evaluating structure responses induced by earthquakes. This paper outlines the new seismic design method of pile foundation, the model used in push-over analysis for large deformation and the hysteresis rule of soil-pile system.