【正文】
工程管理專(zhuān)業(yè)畢業(yè)外文翻譯(房地產(chǎn)) Quality Control 、 Safety During Construction and Cost Control Quality and Safety Concerns in Construction Quality control and safety represent increasingly important concerns for project managers. Defects or failures in constructed facilities can result in very large costs. Even with minor defects, reconstruction may be required and facility operations impaired. Increased costs and delays are the result. In the worse case, failures may cause personal injuries or fatalities. Accidents during the construction process can similarly result in personal injuries and large costs. Indirect costs of insurance, inspection and regulation are increasing rapidly due to these increased direct costs. Good project managers try to ensure that the job is done right the first time and that no major accidents occurs on the project. As with cost control, the most important decisions regarding the quality of a pleted facility are made during the design and planning stages rather than during construction. It is during these preliminary stages that ponent configurations, material specifications and functional performance are decided. Quality control during construction consists largely of insuring conformance to these original design and planning decisions. While conformance to existing design decisions is the primary focus of quality control, these are exceptions to this rule. First, unforeseen circumstances, incorrect design decisions or changes desired by an owner in the facility function may require reevaluation of design decisions during the course of construction. While these changes may be motivated by the concern for quality, they represent occasions for redesign with all the attendant objectives and constraints. As a second case, some designs rely upon informed and appropriate decision making during the construction process itself. For example, some tunneling methods make decisions about the amount of shoring required at different locations based upon observation of soil conditions during the tunneling process. Since such decisions are based on better information concerning actual site conditions, the facility design may be more cost effective as a result. Any special case of redesign during construction requires the various considerations discussed. With the attention to conformance as the measure of quality during the construction process, the specification of quality requirements in the design and contract documentation bees extremely important. Quality requirements should be clear and verifiable, so that all parties in the project can understand the requirements for conformance. Safety during the construction project is also influenced in large part by decisions made during the planning and design process. Some designs or construction plans are inherently difficult and dangerous to implement, whereas other, parable plans may considerably reduce the possibility of accidents. For example, clear separation of traffic from construction zones during roadway rehabilitation can greatly reduce the possibility of accidental collisions. Beyond these design decisions, safety largely depends upon education, vigilance and cooperation during the construction process. Workers should be constantly alert to the possibilities of accidents and avoid taken unnecessary risks. Total Quality Control Quality control in construction typically involves insuring pliance with minimum standards of material and workmanship in order to insure the performance of the facility according to the design. These minimum standards are contained in the specifications. For the purpose of insuring pliance, random samples and statistical methods are monly used as the basis for accepting or rejecting work pleted and batches of materials. Rejection of a batch is based on nonconformance or violation of the relevant design specifications. An implicit assumption in these traditional quality control practices is the notion of an acceptable quality level which is a allowable fraction of defective items. Materials obtained from suppliers or work performed by an organization is inspected and passed as acceptable if the estimated defective percentage is within the acceptable quality level. Problems with materials or goods are corrected after delivery of the product. In contrast to this traditional approach of quality control is the goal of total quality control. In this system, no defective items are allowed anywhere in the construction process. While the zero defects goal can never be permanently obtained, it provides a goal so that an organization is never satisfied with its quality control program even if defects are reduced by substantial amounts year after year. This concept and approach to quality control was first developed in manufacturing firms in Japan and Europe , but has since spread to many construction panies. Total quality control is a mitment to quality expressed in all parts of an organization and typically involves many elements. Design reviews to insure safe and effective construction procedures are a major element. Other elements include extensive training for personnel, shifting the responsibility for detecting defects from quality control inspectors to workers, and continually maintaining eq