Class C surveying and mapping qualification. Increase subsidence observations.

Do you want to add subsidence observation services to the C-level surveying and mapping qualification?

According to the National Bureau of Surveying, Mapping and Geographic Information's "Surveying and Mapping Qualification Grading Standards", surveying and mapping units with C-level qualifications are required to be equipped with no less than one total station with an accuracy of more than seconds and a level with an accuracy of more than S05 when engaged in deformation (settlement) observation and deformation observation.

Operational limits for deformation (settlement) observation and deformation observation: Buildings with a floor area of 20,000 m2 or less or a height of 50 m or less.

Which province you are from, the situation varies from province to province.

The qualification requirements for subsidence observation are as follows:

1. The observation of foundation settlement should have the qualification of Grade A or Grade B in engineering surveying, and should not be lower than the qualification of Grade C.

2. If it is a settlement observation required for the determination of project quality responsibility, it should also have the qualification of a judicial appraisal unit of the people's court.

3. The settlement observation needs to be measured by a third party, which is entrusted by the construction unit according to the requirements of the specification, and the construction unit should also be measured at the same time, and the measurement of the construction unit is used for construction process control.

4. The settlement measurement needs to be measured in the construction stage, and it must be measured after the completion of the project to one year less, and the construction unit can observe the main settlement.

5. If it is found that the settlement value exceeds the allowable range of the design or specification, then it is necessary to ask the original design and survey unit to re-measure the number of Queling and put forward a conclusion. <>

Summary. Dear, you need to do settlement observations.

Dear, you need to do settlement observations.

Whether it is a bright trace to carry out settlement observation, set the old god plan single key deficit should be indicated in the design documents, the designer in the design disclosure to the owner, supervision, construction personnel to make a detailed description, and the foundation bearing characteristic value of less than 130kpa C design grade building, regardless of the size of the settlement should be observed.

According to the Code for the Design of Building Foundations GB50007-2002, the following buildings should be observed during construction and use: buildings with a design grade of Grade A foundation; Buildings with a design grade of B on composite or weak foundations; Extension of buildings with additional floors; Buildings affected by the excavation construction of adjacent deep foundation pits or affected by changes in environmental factors such as groundwater on the site; Projects that require the accumulation of architectural experience or the conduct of design and analysis.

1. It has independent legal personality: the registered capital of Class C surveying and mapping unit shall not be less than 1 million yuan.

2. Office space: not less than 80 square meters for grade C.

3. Quality management: Class C surveying and mapping units shall pass the ISO9000 series quality assurance system certification or pass the assessment of the surveying and mapping administrative departments at or above the city (state) level divided into districts, and the Class C surveying and mapping units shall be equipped with special quality inspection personnel.

4. Archives and confidentiality management: there is a sound management system, confidentiality system and corresponding facilities for surveying and mapping results and data files: there is a clear confidentiality responsibility, and a confidentiality responsibility letter has been signed with the personnel involved in secrets; Specify a special person to keep and provide statistical reports.

5. Establish a management system for the approval of surveying and mapping results: registration, cancellation, inspection, and extension of use; There are media and warehouses suitable for the storage of surveying and mapping results.

According to the "Regulations on the Administration of Surveying and Mapping Qualifications".

Article 7 Units applying for Class A surveying and mapping qualifications shall submit an application to the State Bureau of Surveying and Mapping, and may also be forwarded to the State Bureau of Surveying and Mapping by the administrative department of surveying and mapping of the province, autonomous region or municipality directly under the Central Government where the applicant is located.

Units applying for B, C, and D surveying and mapping qualifications shall apply to the administrative department of surveying and mapping of the people's government of the province, autonomous region, or municipality directly under the Central Government where the applicant is located, or the administrative department of surveying and mapping at the municipal (prefecture) level entrusted by the administrative department of surveying and mapping of the province, autonomous region, or municipality directly under the Central Government where the applicant unit is located, shall forward its application to the administrative department of surveying and mapping of the people's government of the province, autonomous region, or municipality directly under the Central Government.

Article 8 Units applying for surveying and mapping qualifications shall submit the following materials (original or photocopy):

1) The "Application Form for Surveying and Mapping Qualifications" in accordance with the style prescribed by the State Bureau of Surveying and Mapping shall be made in quadruplicate;

2) The business license of the enterprise legal person or the legal person certificate of the public institution;

3) Curriculum vitae and appointment or appointment documents of the legal representative;

4) Qualification certificates, appointment or employment documents, contracts, graduation certificates, and ID cards of professional and technical personnel who meet the prescribed number;

5) The roster of in-service professional and technical personnel of the unit in the current year;

6) Proof of the required number of instruments and equipment;

7) Surveying and mapping technology, quality assurance system and surveying and mapping results and data file management system supporting documents;

8) Proof of the unit's domicile;

9) Supporting materials for surveying and mapping results that can reflect the technical level of the unit;

10) Other materials that shall be provided.