6 Do I need to do a geological survey to conduct a reservoir dam safety appraisal once every 10 year

The dam implements a regular safety appraisal system, and the first safety appraisal should be carried out within 5 years after the completion and acceptance, and then should be carried out every 6 10 years. After encountering a major flood, strong flood, major accident or abnormal phenomenon affecting safety during operation, a special safety appraisal should be organized.

Answer]: A2022 version of the textbook p174

Reservoir dams are subject to regular safety appraisal regulations. The water reservoir Daxun implements a regular safety appraisal system, and the first safety and nuclear attack appraisal should be carried out within 5 years after the completion and acceptance of the inspection, and the old man's should be carried out every other year.

Answer]: cc

Analysis] The reservoir dam implements the safety appraisal system of fixed starvation and burial, and the first safety appraisal should be carried out within 5 years after the completion and acceptance, and then should be carried out every 6 10 years. Therefore, C should be selected for this question.

In order to strengthen the safety management of reservoir dams (hereinafter referred to as dams), standardize the safety appraisal of dams, and ensure the safe operation of dams, these measures are formulated in accordance with the relevant provisions of the Water Law of the People's Republic of China, the Flood Control Law of the People's Republic of China and the Regulations on the Safety Management of Reservoirs and Dams. These measures are applicable to dams with a dam height of more than 15m or a reservoir capacity of more than 1 million cubic meters. Dams with a dam height of less than 15m or a storage capacity of between 100,000 cubic meters and 1 million cubic meters can be referred to for dams.

These measures apply to dams under the jurisdiction of the Ministry of Water Resources and rural collective economic organizations. Dams under the jurisdiction of other departments can be implemented by reference. The term "dam" in these measures includes permanent water retaining buildings, as well as buildings such as flood discharge, water conveyance and ship crossing.

The water administrative departments shall supervise and manage the safety appraisal of dams throughout the country. The Dam Crackhu Safety Management Center of the Ministry of Water Resources provides technical guidance for dam safety appraisal across the country. The local people's water administrative departments at or above the county level shall supervise and manage the safety appraisal of dams within their respective administrative areas.

The local people's water administration departments at or above the county level and river basin institutions (hereinafter referred to as the appraisal and verification departments) shall examine and approve the dam safety appraisal opinions in accordance with the hierarchical management principles stipulated in this article.

The safety assessment of large reservoirs and dams that affect the safety of counties or medium-sized reservoirs with a dam height of more than 50m shall be undertaken by units with Grade A qualifications for water conservancy and hydropower survey and design or relevant scientific research units and colleges and universities announced by the Ministry of Water Resources.

Legal basis: Article 7 of the Measures for the Safety Appraisal of Reservoirs and Dams The dam safety appraisal includes three basic procedures: dam safety assessment, dam safety appraisal technical review and dam safety appraisal opinion approval.