浅谈公路工程施工中关键部位施工技术（Construction technology of key parts in highway engineering construction）0, Xi Meng xi. device.Discussion on highway engineering constructionKey parts construction technologyJiangsu traffic engineering consulting Supervision Co., Ltd. Chen Mingliang_ - this paper discusses highway engineering key parts construction requirements and quality control. Combined with the engineering practiceIt has certain reference significance for highway engineering construction.Lianshan _ highway engineering; key parts; constructionThe key point of controlling the quality of the project is to grasp the quality of the key parts of the construction.Can seriously control the construction of key parts of the project, easy to appear qualityQuality monitoring can be avoided by monitoring key parts of the trap and the quality of the accidentHappen。 Combining with the engineering practice, this paper focuses on how to do a good job in key partsElaborate.1. setting up the key points of highway engineering quality controlThe key points of quality control in highway engineering should be based on design documents and special projectsSpecifications and construction quality plan requirements are set up through highway quality controlSet up to ensure the construction of engineering that meets design and specification requirements.1.1 quality control key point setting principle. Principles include: ConstructionImportant projects, weak links and key parts: influence duration, quality, successSafety, material consumption and other important factors: new materials, new technologies,The construction process of Art: items with frequent frequency of defects in quality information feedback.The points shall also be adjusted with the progress of the construction and the changes in the influencing factors.1.2 control method of key points of quality control. First, establish quality controlPoint of management measures, two is to implement the quality responsibility. Three is to carry out a sampling inspectionFour of the activities are to fill in the quality records of the key points of quality control. qualityThe key point files mainly include: operation flow chart: key point list:Factor analysis sheet, operation instruction, self check, hand over inspection and professional inspectionAnd control chart process quality information five is to implement and economic responsibility phaseInspection and assessment system.1.3 quality control key points of the actual effect of inspection. Quality control keyThe actual effect is manifested in the construction quality management level and the realization of each index. We should use mathematical statistics to draw up the overall quality analysis of engineering projectsThe chart should reflect the dynamic control process and the actual quality of the construction project SuiThe analysis should be included in the construction project quality management by objectives _ Pakistan in each stage of quality.2., highway engineering quality control key points of concrete measures2.1, close the raw materials strictly. Raw material test report must be made in order to make constructionThe materials used in the scheme shall prevail. Materials used during construction and constructionThe sample in the case must be consistent in time and place. The goods cannot be deliveredTest report on replacing raw material.2.2 measurements and tests. The raw reference points, wire points, and controls shall be maintained at any timeCheck the measuring points and keep the measuring records. Key partThe inspection of bit and suspicious points is not limited by the frequency of the test.The field technician shall carry simple measuring instruments and test equipment with ease and convenienceSuspicious points were found.2.3 earthwork subgrade engineering. First, construction lofting and cross section survey, two is the roadThe ground treatment shall be handled according to the construction technical contract or specificationsTrue compaction. The use of suitable materials must be governed by design and specificationsEnsure the raw material is qualified. Correctly determine the maximum dry density and optimum content of soilWater quantity: four is the thickness of each layer and the transverse slope; five is the layering compaction, the control fillsSoil moisture content to ensure compaction to meet design requirements.2.4, the road base (subbase). First, the use of equipment at the grassroots level construction:Two is the binding dose; three is the material used and the water content, mixing uniformity,Mixture ratio four is the degree of compaction, deflection, smoothness and cross slope, etc.; five, such as miningWith graded crushed stones, attention should be paid to aggregate gradation and crushing value of stone.