Engineering Survey Technology Management
Engineering survey is an important link in the construction process of civil engineering. It is one of the important qualities of a civil engineering project. The quality of engineering survey affects the accuracy of engineering design, the accuracy of engineering construction, the correctness of engineering cost estimate and the safety of engineering structures, etc. Especially in the construction of large-scale and large-scale foundation projects, the accuracy of engineering survey is the prerequisite for the quality assurance of the entire project. In order to ensure the accuracy of engineering survey and the quality assurance of civil engineering and foundation engineering, it is necessary to correctly understand the work content and technical requirements of engineering survey, and to establish a scientific, orderly and effective engineering survey management system.
1. Main contents of engineering survey
Engineering survey is generally divided into preliminary survey and construction survey. The purpose of preliminary survey is to understand the general situation of the engineering project and to obtain the necessary survey data for engineering design. The reconnaissance survey link generally includes basic survey such as geology investigation, environmental survey, topography survey, cadastral survey (or cadastral survey), hydrological survey, seepage test survey, etc. Construction survey is mainly used to obtain accurate data for the design and construction of civil engineering. The survey data required by the design department include coordinates, elevations, alignment and topography of the construction site, water seepage data, water conservancy and hydrology data, etc.
2. Technical requirements of engineering survey
The purpose of engineering survey is to obtain accurate survey data. In order to ensure the accuracy of the survey data, it is necessary to accurately set the survey control points, accurately detect the coordinates, elevations, alignment and topography of the field points, accurately measure the size of the project area, and ensure the consistency of the data of different survey items. The accuracy of the survey data is closely related to the accuracy class selection of control points and survey points, the accuracy of the survey instrument and the skill level of the survey personnel. At present, the application of modern mathematical measurement instruments and information technology in engineering survey has greatly improved the accuracy and efficiency of the survey.
3. Management measures of engineering survey
(1) Establish a survey quality management system. It is necessary to establish a scientific, efficient and effective survey quality management system, establish a survey quality management organization and standardize the responsibilities of the survey team members and management personnel. Specifically, it is necessary to set up survey quality inspection points, regular checks, quality records and processing procedures for non-standard survey data and management of survey instruments.
(2) Strengthen the pre-survey and basic survey. Taking into account the impact of geological and hydrological conditions on the design, construction and safety of the project, it is necessary to conduct a field reconnaissance survey before the formal survey and strengthen the survey of geology and hydrology conditions.
(3) Improve survey personnel management. It is necessary to standardize the selection, training and assessment of survey personnel, improve the professional level of survey personnel, and select the right survey personnel before the survey.
(4) Establish a survey instrument management system. It is necessary to set up a survey instrument management system, including survey instrument inspection, acceptance, storage, periodic calibration and maintenance.
In conclusion, engineering survey is an important process of civil engineering construction, and its quality directly affects the accuracy of engineering design and safety of engineering structure. Therefore, it is necessary to deepen the understanding of the work content and technical requirements of engineering survey, and establish a scientific, orderly and effective engineering survey management system in order to ensure the accuracy of engineering survey and the quality assurance of civil engineering and foundation engineering.
