| The site construction ration is the quota of labors, machines and materials consumed in construction work for completing one qualified unit product under reasonable and normal construction conditions. The construction ration should reflect the level of construction, equipment and management of an enterprise and be the gauge to examine an enterprise's productivity, cost and bidding price.The site construction ration plays a fundamental role in the project cost ration system. It is the important basis of project cost estimating ration and budget ration.Any construction ration is composed of labor ration, machine ration and material ration. Compiling of construction ration must follow average advance principle, concise expedience principle and relying on expert principle.The methods of collecting basic information of construction ration consist of statistic analyzing method, experience estimating method and time measuring and observing method. To study construction ration must rely on studying construction process.Being aided by mathematic statistics theory and method and applying computer professional software is very important to compiling a complete and particular construction ration.The Changjiang River important embankment project employs a lot of new techniques, methods, materials and equipments (four news). This paper focuses on the methods, results and relating mathematic models of construction ration measurement referring to leader dredge bucket grooving machine and repeting sawing machine wielded on the sites of embankment foundation anti-leakage project. |
