CE Lec-2 Site Analysis SE Shahid

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Civil Engineering
Jul 10, 2023
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CE-375 CONSTRUCTION ENGINEERING SE SHAHID SITE ANALYSIS, COLLECTION OF INFORMATION & SITE SET-UP Function of the Site Analysis The main purpose of site analysis is to identify and hence reduce the risks associated with the development by recording site features and soil characteristics, helping to determine the design and cost of suitable foundations and structure. A thorough site analysis is an essential first step that will assist development, design and construction decisions. The site analysis helps: The client to assess whether the project is viable The client, designer, structural engineer and contractor to locate the best position for the building, avoiding identified problems where possible and making the best possible use of physical features and environmental conditions The engineers to design the most suitable foundation system The mechanical and electrical consultants to design the service provision The designers and contractor to ensure that safe construction methods are used The site analysis comprises three inter-related research activities; the desk-top study, the site reconnaissance and the ground and soil investigations. Drawings and Specifications
CE-375 CONSTRUCTION ENGINEERING SE SHAHID The role of drawings and specifications is to communicate to the builder exactly what is to be built. On single-home residential jobs, all the information necessary to build the project is usually contained in a set of working drawings together with supplementary notes regarding items such as cabinets, floor coverings, paint colors, light fixtures, and any other selections made by the owner. Specifications are usually noted on the drawings of these smaller projects. On larger projects, drawings will be supplemented by a separately bound set of specifications that go into much detail about the materials and workmanship required on the project. A set of drawings for a new building will usually include the following: A site plan that provides information about the site of the building and shows property lines together with the location of the building on the site. Plan views of each level of the proposed building from which the reader can obtain information about the size and layout of the building. Building elevations that show what the building will look like as viewed from the front, sides, and back. Cross-sections that show the construction of foundations, floors, walls, and roofs. Additional sketches and information about building components. Soils Reports The soils report is a resource that is available on most large projects and also on some smaller jobs. This document provides information about the subsurface conditions at the site obtained from bore holes and/or other investigations made by a soils engineer. The report usually includes advice about the type of foundation systems suitable for the conditions encountered. However, the information contained in the report can also be very helpful to the excavator since it not only discloses the type of soil that will probably be found at the site, but also provides an indication of the moisture content of this soil. Both of these factors can have a profound effect on the cost of excavation work.
CE-375 CONSTRUCTION ENGINEERING SE SHAHID Site Visits Whether it is a custom home to be built or a multi-unit residential project, the methodology for the work will always depend, at least to some extent, on the characteristics of the particular site where the building is to be constructed. A visit to the site and its surroundings should always be made to record everything relevant to the proposed development. The site reconnaissance is often referred to as the visual inspection or the 'walk over'. From experience we have found that two pairs of eyes (or more) are always better than one and so the visual inspection should be undertaken by at least two, and preferably three, people, e.g. the architect, engineer and contractor, with each taking their own notes but discussing features as they come across them. Following should be observed by the Site Engineer during the site visits:- The condition of the site and any soil information that can be observed as it will impact the price of the excavation work estimated. It is recommended that photographs or videos be taken on the site visit since the condition of the site may change in the time between the bid and the start of work. Site features and existing buildings be recorded on camera. Also, the condition of structures adjacent to the site should be carefully documented and photographed at this time, especially if these structures are in poor condition. This information could be important in determining if damage to these occurred before or after the project work began. A record should be made of the foundations of old buildings on the site. Cracks and other signs of movement in adjacent buildings should be noted. Environmental concerns are another important area to consider on the site visit. Complying with environmental requirements can be a very costly proposition for a contractor.
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