GB/T 19570-2017Engineering technical spicification for sewage pipeline discharging into the sea (English PDF)

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009.

This standard replaces GB/T 19570-2004 "Sewage Displacement Pipeline Engineering Specifications." This standard and GB/T 19570-2004 phase Comparison, in addition to editorial changes outside the main technical changes are as follows.

--- Increase "surge wells" terms and definitions (see 3.3);

--- Increase "First of all, the area where the mixed zone formed by sewage discharge is located must be defined, and more than two outfalls And their mixed area and comparison "(see 5.1.3);

--- Modify the engineering geophysical requirements (see 5.2.5, 2004 edition of 5.1.4.4);

--- Adjust the "Chapter 6, Chapter 7 of the order" (see Chapter 6 and Chapter 7, 2004 edition Chapter 6 and Chapter 7);

--- Revised "pipe design temperature range" (see 6.2.4, 2004 edition of 7.2.4);

--- Increase "should adopt high-quality materials and environmental protection of pipe, such as steel pipe and continuous winding glass tube" (see 6.2.9);

--- Increase the discovery of pipeline rupture, should open the emergency vent or effective implementation of the sewage diversion content (see 6.2.29);

--- Increase "coating materials should meet the environmental requirements" (see 6.4.2);

--- Increase "units involved in the construction of large-scale pipeline projects should have the relevant qualifications required by the ministries" (see 6.5.1);

--- Increase the "construction phase should have qualified supervision unit requirements" (see 6.5.2);

--- Increase "the main equipment used in the measurement and laying pipe stinger should be inspected by the statutory quality inspection department, and have a certificate book. Escalator should have spare parts "(see 6.5.2);

--- Increase "submarine pipeline laying, should be along the route sweep the sea, such as the discovery of seafloor reefs should be carried out first blasting or blasting" (See 6.5.3);

--- Increasing the pipe welding process and accuracy should meet the GB/T 50268-2008 specification requirements (see 6.5.10);

--- Increase the sewage row of sea pipeline construction in the sea temperature or stress changes in the sea should be used telescopic section to protect the pipeline (See 6.5.15);

--- Increasing the initial dilution data should be submitted by the SEPA Marine Environmental Assessment Unit (see 7.10);

--- Increase should be carried out sewage and initial dilution and mixing area water quality monitoring (see 7.19).

Introduction

In recent years, with the vigorous development of China's coastal economy, the living standards of the people have rapidly risen. In particular, opening up and science and technology substantially Ascending the masses to pay more attention to environmental protection, awareness and level of environmental protection significantly improved. The original norms can not adapt to the new situation need. The revised norms will pay more attention to the wishes of the people, in order to protect the marine environment for the purpose of the route survey, sewage drainage sea mixed area Investigation and sewage on the marine environment pollution control and pipeline design, construction, etc., to carry out more effective guidance to promote China's sewage pipe Road engineering technology continues to improve, a substantial increase in the level of marine environmental protection.

1 Scope

This standard specifies the Sewage Disposal of the sea route engineering survey and selection of routes, sewage and sea mixed area, pipeline design and construction and other technologies Claim.

This standard applies to sewage row of sea pipeline project, by our country's foreign sewage row of sea pipeline project construction can refer to use.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version applies to this document. For undated references, the latest edition (including all amendments) applies to this document.

GB 3097 seawater quality standards

GB/T 12763.2 Marine survey code - Part 2: Ocean hydrological observations

GB/T 12763.3 Marine survey code - Part 3: Marine meteorological observations

GB/T 12763.6 Marine survey code - Part 6: Marine life survey

GB/T 12763.8 Marine survey code - Part 8: Marine geophysical survey

GB/T 14914 seaside observing norms

GB 17378.4 Marine monitoring code - Part 4: Sea water analysis

GB 17378.5 Marine monitoring code - Part 5: Sediment analysis

GB 17378.6 Marine monitoring code - Part 6: Organism analysis

GB 17378.7 Marine monitoring code - Part 7: Coastal pollution ecological survey and biological monitoring

GB 17501-1998 Specification for oceanographic topographic survey

Submarine cable pipe routing survey specification

GB 18421 Marine biological quality

Sewage and marine disposal project pollution control standards

Town sewage treatment plant pollutant discharge standards

GB/T 19485-2014 Technical Guidelines for Environmental Impact Assessment of Marine Engineering

Specification for construction and acceptance of water supply and drainage pipelines

JTS 145-2015 Hydrological specifications for ports and waterways

Submarine Pipeline System

3 Terms and definitions

The following terms and definitions apply to this document.