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New standards for the four most popular geological

2022-10-01

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Four geological survey work will have new standards

recently, the revision of the safety regulations for seismic exploration and explosion, the revision of the regional gravity survey specification, the technical regulations for the prevention and treatment of accidents in geological drilling holes and the technical regulations for digital aerial remote sensing photography under the geological survey standard preparation, revision, upgrading and promotion project have passed the expert review, and will soon become the new standards for geological survey work

Changshu national high tech Industrial Development Zone is located in the core area of the Yangtze River Delta. The safety code for seismic exploration and explosion (GB) was issued in 1991, which is a national mandatory standard and plays an important role in safety production in seismic exploration at that time and even in the next 20 years. In recent years, China has strengthened the management of safety production and civil explosives, and the relevant standards and requirements of the safety code for seismic exploration and explosion have seriously lagged behind the current requirements of safety production and civil explosives management. Led by the geophysical and Geochemical Exploration Institute of the Geological Survey Bureau and jointly revised by many domestic units, the "safety regulations for seismic exploration and explosion in the cost-effectiveness of the overall system" has a wider scope of application, and implements the whole chain management of seismic exploration explosives, which has strong practicality and operability, and can meet the actual work needs of seismic exploration field operations. At present, with the launch of the deep earth exploration science program, the scientific research activities of deep exploration and investigation, mainly seismic exploration, will increase sharply. The newly revised "safety regulations for seismic exploration and explosion" will continue to be submitted to the National Standards Committee for approval and issuance as a national mandatory standard

the code for regional gravity survey (dz/t) was first published in 1993. It is an industry standard in the field of Geology and mineral resources based on the old national geodetic coordinate system. In view of the progress of regional gravity survey technology, the upgrading of instruments and equipment and the launch of the national geodetic coordinate system 2000, the Institute of geophysical and geochemical exploration of the geological survey took two years to complete the revision of the standard. In the revised new standard, the use of the 2000 national geodetic coordinate system and ellipsoidal height datum has improved the positioning accuracy of gravity points and the accuracy of height measurement, and optimized the field geodetic work methods and workflow; The calculation method of near area terrain correction is modified; It improves the total accuracy of Bouguer gravity anomaly and provides a suitable technical standard for regional geophysical investigation

the prevention and treatment of accidents in geological drilling holes, that is, the technical specification for automobile safety, formulated by the Geological Survey Bureau, classifies the complex situations such as water leakage, water gushing, borehole collapse, necking, over diameter and the types of accidents in geological drilling holes, and gives the basic requirements and safety regulations for geological drilling construction safety. According to different complex situations and accident categories, accident prevention and treatment measures are given respectively, so that the overload protection function of the new technology, output of experimental reports, energy-saving methods and tools can be standardized in the treatment of drilling accidents, and the accidents can be handled scientifically and reasonably, which improves the drilling efficiency of geological drilling construction to a certain extent. The formulation of this standard fills the gap in the technical standards for the prevention and treatment of accidents in geological drilling holes

the technical specification for digital aerial remote sensing photography formulated by the aeronautical Remote Sensing Center of the Geological Survey Bureau stipulates the technical requirements for aerial photography, data processing and product production by using frame and push broom digital aerial cameras. The working scale is widened to 1:2000, 1:5000, 1:10000 and 1:50000, which provides appropriate technical standards for digital aerial remote sensing photography in current geological survey