This specification applies to the construction and acceptance of urban and industrial water supply and drainage structures, and does not apply to water supply and drainage structures with special requirements in industry. GBJ 141-1990 Construction and Acceptance Specification for Water Supply and Drainage Structures GBJ141-1990 Standard download decompression password: www.bzxz.net

Engineering Construction Standard Full-text Information System
National Standard of the People's Republic of China
Construction and Acceptance Specification for Water Supply and Drainage Structures
GBJ141—90
Engineering Construction Standard Full-text Information System
W Engineering Construction Standard Full-text Information System
National Standard of the People's Republic of China
Construction and Acceptance Specification for Water Supply and Drainage Structures GBJ
141—90
Editor Department: Former Ministry of Urban and Rural Construction and Environmental Protection of the People's Republic of China Editor Unit: Beijing
Approval Department: China
S Date of implementation: 1
Engineering Construction Standard Full Text Information System
Engineering Construction Standard Full Text Information System
Notice on the release of the national standard "Construction and Acceptance Specifications for Water Supply and Drainage Structures"
(90) Jianbiaozi No. 672
According to the requirements of the State Planning Commission's Document No. [1984305], the "Construction and Acceptance Specifications for Water Supply and Drainage Structures" jointly formulated by the Beijing Municipal Engineering Bureau and relevant departments has been reviewed by relevant departments. The "Construction and Acceptance Specifications for Water Supply and Drainage Structures" GBJ141-90 is now approved as a national standard and will be implemented on August 1, 1991. This standard is managed by the Urban Construction Department of the Ministry of Construction, and its specific interpretation is the responsibility of the Beijing Municipal Engineering Bureau. The publication and distribution is organized by the Standard and Quota Research Institute of the Ministry of Construction.
Ministry of Construction of the People's Republic of China
December 22, 1990
Engineering Construction Standards Full Text Information System
3
Engineering Construction Standards Full Text Information System
Preparation Instructions
This specification is prepared in accordance with the requirements of the State Planning Commission's Document No. 305 (1984), under the charge of the Urban Construction Department of our Ministry, edited by the Beijing Municipal Engineering Bureau, and jointly prepared by the Shanghai Municipal Engineering Administration, Tianjin Municipal Engineering Bureau, Tianjin Public Utilities Bureau, Wuhan Municipal Construction Committee Urban Management Office, Jilin Provincial Construction Department, Gansu Provincial Construction Department, Ministry of Railways Capital Construction Bureau, Beijing Institute of Civil Engineering, and Ministry of Chemical Industry Capital Construction Bureau. In the process of compiling this specification, the specification compilation team conducted extensive investigations and studies, and carefully summarized the actual construction of water supply and drainage structures in various regions of my country. Based on the practical experience, we referred to relevant domestic and foreign advanced standards, invited the Infrastructure Bureau of the Ministry of Metallurgy and the Construction Departments of four provinces to participate in the discussion, widely solicited opinions from relevant units across the country, and verified it through pilot projects. Finally, our ministry reviewed and finalized it together with relevant departments. In view of the fact that this specification is compiled for the first time, during the implementation process, we hope that all units will combine engineering practice and scientific research, carefully summarize experience, and pay attention to accumulating information. If you find any need for modification and supplementation, please send your opinions and relevant information to the Beijing Municipal Engineering Bureau (address: No. 17, Nanlishi Road, Fuwai District, Beijing, Postal Code: 100045) for reference in future revisions.
Ministry of Construction of the People's Republic of China
December 1990
Engineering Construction Standard Full-text Information System
W.bzsosO.coI Engineering Construction Standard Full Text Information System
Chapter 1 General
Chapter 2
Construction Preparation
Chapter 3
Section 1
Section 2www.bzxz.net
Section 3
General Provisions·
Soil, Straw Bale Soil, Straw (Hemp) Bag Cofferdam
Steel Sheet Pile Cofferdam
Chapter 4 Foundation Pit
Section 1
Construction Drainage
(I) General Provisions|| tt||（I）Open drainage…
（I）Well point dewatering·
Section 2 Excavation of foundation pit
Section 3
Backfilling of foundation pit
Chapter 5 Water pool
Section 1
General provisions
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(I) Steel bars..
(I) Concrete:
Section 3 Prefabricated prestressed concrete pools (I) General provisions·
(I) Fabrication and lifting of components
() Wire wrapping of wall panels
(IV) Electric tensioning of steel bars
...........
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( V) Prestressed steel bar gun spray cement mortar protective layer engineering construction standard full text information system
Engineering construction standard full text information system
Section 4 Brick masonry pool·
(I) General provisions:
(I) Brick masonry pool*
(I) Rubble stone masonry pool
Section 5
Treatment structures
Chapter 6 Pumps
Section 1
General provisions
Chapter 7 Ground Underground Water Intake Structures
Section 1
General Provisions
Section 2
Large Wells
Section 3
Chapter 8 Surface Water Intake Structures
Section 1
Section 2
Section 3
General Provisions
Mobile Water Intake Structures.
Water Intake Head
Well Water Pipeline
Section 4
(I) Underwater Buried Pipes and overhead pipes
(I) Underwater jacking pipes
Chapter 9 Water towers
Section 1
Section 2
General provisions
Section 3 Tower body
...............*......
(I) Reinforced concrete cylindrical tower body·
(I) Reinforced concrete frame tower body
(I) Steel frame, steel cylindrical tower body
(V) Masonry tower
Section 4 Water Tanks
(I) General Provisions
() Wire Mesh Cement Inverted Cone Shell Water Tanks........Engineering Construction Standards Full-text Information System
Engineering Construction Standards Full-text Information System
(I) Reinforced Concrete Water Tanks
V) Steel Water Tanks·
Chapter 10
Project Acceptance
Appendix 1
Appendix 2
Appendix 3
Appendix 4||tt ||Water pool full water test
Gas tightness test of digester
Construction and inspection record form
Terms used in this specification
Additional explanation
Engineering construction standard full text information system
Engineering construction standard full text information system
Chapter 1 General Provisions
Article 1.0.1 This specification is specially formulated to strengthen the management of water supply and drainage structures during construction, continuously improve the technical level, ensure the quality of the project, ensure safe production, save materials and improve economic benefits.
Article 1.0.2 This specification applies to the construction and acceptance of urban and industrial water supply and drainage structures, and does not apply to water supply and drainage structures with special requirements in industry. Article 1.0.3 Water supply and drainage structures must be constructed according to design requirements and construction drawings, and design changes must be approved by the design unit. Article 1.0.4 The construction of water supply and drainage structures must comply with national and local regulations on safety, labor protection, fire prevention, environmental protection, etc. Article 1.0.5 The construction and acceptance of water supply and drainage structures shall comply with the provisions of this code and the relevant current national standards and specifications. Engineering Construction Standard Full Text Information System
Engineering Construction Standard Full Text Information System
Chapter 2 Construction Preparation
Article 2.0.1 Before the construction of water supply and drainage structures, the design unit shall conduct design disclosure. When the construction unit finds errors in the construction drawings, it shall promptly request design changes to the design unit and the construction unit.
Article 2.0.2 Before construction, investigation and research should be conducted according to construction needs to fully master the following conditions and information:
1. Site topography and existing buildings and structures; 2. Engineering geology and hydrogeology data; 3. Meteorological data;
4. Project land, transportation and drainage conditions; 5. Construction water supply and power supply conditions;
6. Engineering materials and construction machinery supply conditions; 7. When constructing in surface water bodies or on the shore, the hydrological data and shipping data of surface water should be mastered, and when constructing in cold areas, the data of surface water and ice should be mastered. 8. Other conditions and information combined with the characteristics of the project and site conditions. Article 2.0.3 Before the construction of water supply and drainage structures, a construction organization design should be prepared. The content of the construction organization design should mainly include project overview, construction deployment, construction methods, construction technical organization measures, construction plan and general construction plan layout, etc. The construction design should be prepared separately for the main construction methods. Article 2.0.4. Construction technical organization measures should include measures to ensure project quality, safety, construction period, reduce costs and improve economic benefits, and the following special measures should be taken according to the construction characteristics:
1. Measures should be taken to prevent surface water from flowing into the foundation pit and groundwater drainage interruption for underground and semi-underground structures. If necessary, emergency measures should be taken to prevent floating of the structure; 2. Anti-freezing measures should be taken during winter construction in cold areas; 3. When constructing in surface water bodies or on the shore, measures should be taken to prevent flooding, scouring, floating objects, and ice, as well as protection measures for flood control embankments; 4. For caisson and foundation pit construction drainage, settlement observations should be conducted on the original buildings and structures within the affected range, and protective measures should be taken if necessary. Article 2.0.5 During the construction of water supply and drainage structures, the construction should be carried out in the order of underground first and then above ground, deep first and then shallow, and mutual interference should be prevented during the cross-construction of various structures. For structures built in surface water bodies, on the shore and below the groundwater level, the main structure should be constructed during the dry season; the construction of anti-seepage concrete should be avoided in low and high temperature seasons.
Article 2.0.6 Temporary construction facilities should be reasonably set up according to the characteristics of the project and an overall layout should be made. For projects that should not be interrupted in the middle of the construction, there should be backup power and equipment.
Article 2.0.7 Construction measurement should comply with the following provisions: 1. Before construction, the construction unit should organize relevant units to hand over piles to the construction unit on site,
2. The temporary leveling points and axis control piles set up for construction must be located in a stable area and a position that is easy to observe, and protective measures must be taken. The number of temporary leveling points shall not be less than two;
3. Temporary leveling points, axis piles, and positioning piles and elevation piles for construction must be reviewed before use, and should be checked frequently; 4. The plane position and elevation of the existing structures connected to this project must be calibrated before construction.
Article 2.0.8 The allowable deviation of construction measurement shall comply with the provisions of Table 2.0.8. Permissible deviation of construction survey
Elevation closure error of leveling line measurement
Engineering construction standard full text information system
Permissible deviation
±20 (mm)
±6V (mm)
W3
Engineering construction standard full text information system
Angle closure error of traverse measurement
Relative closure error of traverse measurement
Difference between two direct measurement
Note: ①L is the length of the closed line of leveling measurement (km). ②n is the number of measuring stations of leveling or traverse measurement. Engineering Construction Standard Full-text Information System
Allowable deviation
±40 V()
1/3000
1/5000
Engineering Construction Standard Full-text Information System
Chapter 3
General Provisions
Section 1
Article 3.1.1 A construction design shall be prepared for the cofferdam, and its structure shall be simple, meet the requirements of strength, stability, anti-scouring and anti-seepage, and shall be easy to construct, maintain and dismantle. Article 3.1.2 The construction design of the cofferdam shall include the following main contents: 1. Cofferdam plan layout,
2. Water congestion and wave height of the water section after the river channel is narrowed; 2. Calculation of the strength and stability of the cofferdam; 4. Cofferdam section construction drawing,
5. Sheet pile processing drawing;
6. Cofferdam construction method, construction materials and machinery; 7. Cofferdam removal method and requirements;
8. Safety measures.
Article 3.1.3 The selection of the cofferdam type shall be determined based on the hydrology, topography, geology of the river channel and local materials, construction technology and equipment, and shall be determined through comprehensive technical and economic comparison, and shall comply with the provisions of Table 3.1.3.
Selection range of cofferdam
Type of cofferdam
Earth cofferdam
Straw bale earth cofferdam
Straw (hemp) bag cofferdam
Steel sheet pile cofferdam
Maximum water depth (m)
Applicable conditions
Maximum flow rate (m/s)
Note: Earth, straw bale earth, straw (hemp) bag cofferdams are suitable for riverbeds with low soil permeability. Engineering Construction Standard Full Text Information System
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