Dam Monitoring

1.Dam Monitoring Background

The safety of reservoirs during the flood season has always been a difficult and key point in my country's flood control. The safety of small and medium-sized reservoirs during the flood season has become a weak link in the current national flood control work. Most reservoirs lack the necessary safety monitoring facilities, and the inspection methods are backward, which poses great hidden dangers. Once a local rainstorm or flood occurs, it is very easy to cause a dam breach, which may cause property losses at the least, or cause heavy casualties or devastating disasters at the worst.

As of the end of 2018, 98,822 reservoirs of various types had been built across the country. However, most of the small and medium-sized reservoirs were built in the 1960s and 1970s and are three-sided projects. On the one hand, most of the reservoirs have low flood control standards, poor engineering quality, serious siltation, and shrinking effective storage capacity, and are in a state of sick operation. On the other hand, many reservoirs have reached or exceeded their designed service life and are seriously aging, and the potential safety hazards of reservoir projects are prominent.

2. Overview of Dam Monitoring System

In order to achieve the goal of building digital water conservancy in my country, our company took the lead in closely integrating cloud computing with the Internet of Things to establish an intelligent, automated, and information-based online monitoring system for reservoir and dam safety. It has functions such as remote data transmission, real-time online monitoring and early warning, and plays a vital role in ensuring the safe operation of reservoirs and dams.

3. Dam Monitoring Main Monitoring Content

1. Surface displacement monitoring

2. Internal displacement monitoring

3. Groundwater level monitoring

4. Rainfall monitoring

5. Retaining wall pressure monitoring

6. Concrete stress monitoring

7. Seepage monitoring

8. Temperature and humidity monitoring

IV. Dam Monitoring Project List

5. Dam Monitoring Basis

Technical Specification for Concrete Dam Safety Monitoring DL/T 5178-2016

Technical Specification for Earth-Rock Dam Safety Monitoring SL551-2012

Technical Specifications for Concrete Dam Safety Monitoring SL601-2013

6. Dam Monitoring Implementation Function

1. Data can be displayed in graphical form, including water level flow relationship, water level process line, rainfall bar graph, seepage pressure, seepage process line, time history curve graph, simulation diagram, histogram, bar graph and other forms.

2. Real-time monitoring can be carried out around the clock under various climatic conditions.

3. Once the monitoring data exceeds the preset value, it can issue an early warning and notify relevant units to take corresponding measures immediately.