DL/T 5808-2020 in English

VALID

Technical code for reservoir earthquake monitoring of hydropower projects

Issued on:2020-10-23
Implemented on:2021-02-01
File Format:PDF
Delivery:Via email within 5 business days

Price(USD)： $820.00
$796.00

Standard No:	DL/T 5808-2020
Document status:	VALID
Title in English:	Technical code for reservoir earthquake monitoring of hydropower projects
Title in Chinese:	水电工程水库地震监测技术规范
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 5 business days
Issued on:	2020-10-23
Implemented on:	2021-02-01
Professional Classification:	DL-Electricity
Related Keywords:	reservoir earthquake monitoring reservoir earthquake monitoring system design difference analysis monitoring accuracy ml≥0.5 ml≥1.0 higher sensitivity requirements technical requirements
Related Topics:	reservoir hydropower project Earthquake monitoring astm5808 Technical basis for engineering monitoring as5808 Surface water monitoring 100 million yuan Kudi construction site water Surface water monitoring 26 items Earthquake monitoring Technical Requirements for Seismic Monitoring of Reservoirs How to monitor earthquakes Current monitoring in water Voltage monitoring in water Earthquake monitoring group "General Technical Specifications for Corpus" hj91.2-2019 Surface water monitoring technology "Technical Specifications for Groundwater Monitoring Engineering" (gb/t 51040-2014) Soft soil foundation construction monitoring technology for hydropower and water conservancy projects Microseismic ground monitoring Reservoir induced earthquake monitoring technology Reservoir earthquake monitoring technology for hydropower projects Hydropower Engineering Environmental Monitoring Technology Groundwater level monitoring engineering technology Ground pressure monitoring specifications Safety monitoring technology in reservoir areas of hydropower projects Earthquake monitoring hot spring gas detection dl/t5572-2020 Wastewater Law Enforcement Monitoring Technology dl/t 5584-2020 dl/t2131-2020

Introduction

Background and scope of application of the specification

In view of the particularity of reservoir-induced earthquakes, this specification stipulates the selection standards for equipment such as digital seismographs and strong motion meters for reservoir earthquake monitoring systems in hydropower projects. It is applicable to hydropower projects with an installed capacity of more than 50MW or a reservoir capacity of more than 100 million cubic meters.

Comparison of core technical requirements

Technical indicators	Requirements of this specification	International standard (IEC 61672)	Difference analysis
Monitoring accuracy	ML≥0.5	ML≥1.0	Higher sensitivity requirements
Sampling rate	≥100Hz	≥50Hz	Adapt to reservoir microseismic characteristics

Key points of monitoring system design

Take a 300MW hydropower station as an example, according to Article 5.2.3:

The distance between stations and networks should be ≤15km
At least 3 wide-band seismometers
Data transmission delay <2 seconds

Implementation suggestions

The suggestions are implemented in three stages:

Construction period: focus on completing station infrastructure and equipment lightning protection
Storage period: increase observation frequency to 3 times a day
Operation period: establish an earthquake-reservoir water level correlation analysis model

More samples: GB 18306-2015 YD/T 3934-2021 JC/T 2453-2018

Sample only — not a preview of DL/T 5808-2020

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