Standard No.:	GB 50374-2006
English Name:	Code of Construction and Acceptance for Communication Conduit Engineering
Chinese Name:	通信管道工程施工及验收规范
Chinese Classification:	P76    Communication engineering
Professional Classification:	GB    National Standard
Issued by:	MOC; AQSIQ
Issued on:	2006-12-11
Implemented on:	2007-5-1
Status:	superseded
Superseded by:	GB/T 50374-2018 Standard of construction and acceptance for communication conduit engineering
Superseded on:	2019-3-1
Language:	English
File Format:	PDF
Word Count:	19000 words
Price(USD):	380.0
Delivery:	via email in 1 business day

1.0.1 This code was formulate in order to adapt to the requirements of the construction of modern city and the development of information, guarantee the materials, construction and final acceptance indexes of the construction of information communication conduit and channel engineering meeting the design requirements. 1.0.2 This code is the technical base for the such works as the construction, supervision, follow-up acceptance, final acceptance (including preliminary acceptance and final acceptance) and compilation of completion document of the communication conduit engineering. 1.0.3 This code applies to the construction and acceptance of the constructed, extended and renovated communication conduit engineering. 1.0.4 In the construction of communication conduit engineering, only the approved products meeting the relevant national technical standards can be adopted. Equipments that have not yet accepted in the inspection of the relevant national product quality supervision and inspection mechanism shall not be used in the engineering. 1.0.5 In the construction of communication conduit engineering, the new processes and new technologies shall be adopted positively in order to improve the construction quality and reduce the construction cost. 1.0.6 The final acceptance of communication conduit engineering shall be done according to the legal procedures of engineering acceptance; the contents and requirements of the final acceptance shall be implemented according to those specified in this code. The contents, if any discovered not conforming to this code or the relevant regulations and being caused by the construction organization during the follow-up inspection and final acceptance, shall be repaired by the construction organization till they are qualified. 1.0.7 The construction of communication conduit and channel shall not only implement this code, but also shall be in accordance with those specified in the current relevant national standards and codes.

1 General Provisions 2 Equipment Inspection 2.1 General Requirements 2.2 Cement and Cement Products 2.3 Sands 2.4 Stones 2.5 Bricks 2.6 Building Blocks 2.7 Water 2.8 Cement Pipe Blocks 2.9 Plastic Pipes and Accessories 2.10 Steel Products, Steel Pipe and Ironworks 3 Engineering Survey 4 Earthworks 4.1 Excavation of Trench and Delve 4.2 Back Filling Soil 5 Formwork, Reinforcement Bar and Concrete, Mortar 5.1 Installing and Unpacking of the Formwork 5.2 Reinforcing Steel Work 5.3 Concrete Pouring 5.4 Cement Mortar 6 Construction of Manhole (handhole) and Channel 6.1 General Requirements 6.2 Subgrade and Foundation of Manhole (handhole) and Channel 6.3 Wall 6.4 Manhole (handhole) Upper Cover and Channel Trench Cover Plate 6.5 Port Ring and Well Cover 7 Conduit Laying 7.1 General Requirements 7.2 Subgrade 7.3 Foundation 7.4 Concrete Conduit Laying 7.5 Plastic Conduit Laying 7.6 Steel Conduit Laying 8 Engineering Acceptance 8.1 Follow-up Acceptance 8.2 Initial Engineering Inspection 8.3 Final Engineering Inspection Appendix A Surveying Concrete Strength with Resiliometer Appendix B Cement Pipe Block Specification and Multi-hole Plastics Pipes End Face Appendix C Reference Mixture Ratio of the Ordinary Concrete in Common Mark Numbers Appendix D Stereotyped Manhole and Volume Table Appendix E Classification of Earth and Stone Appendix F Items and Content of Engineering Acceptance Explanation of Wording in This Standard