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Test method for resistance against surface and traffic loading of the thermoplastics inspection chamber
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GB/T 45644-2025
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Basic data | Standard ID | GB/T 45644-2025 (GB/T45644-2025) | | Description (Translated English) | Test method for resistance against surface and traffic loading of the thermoplastics inspection chamber | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G33 | | Classification of International Standard | 83.140.30 | | Word Count Estimation | 10,129 | | Date of Issue | 2025-04-25 | | Date of Implementation | 2025-11-01 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 45644-2025: Test method for resistance against surface and traffic loading of the thermoplastics inspection chamber
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ICS 83.140.30
CCSG33
National Standard of the People's Republic of China
Thermoplastic manholes are resistant to ground and traffic
Load performance test method
Published on April 25, 2025, implemented on November 1, 2025
State Administration for Market Regulation
The National Standardization Administration issued
Foreword
This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents"
Drafting.
This document is modified to adopt ISO 13266.2022 "Inspection wells and manholes for thermoplastic pipe systems for non-pressure buried drainage and sewage treatment"
Determination of the resistance of thermoplastic shafts to ground and traffic loads.
Compared with ISO 13266.2022, this document has many structural adjustments. Comparison table of structural number changes between the two documents
See Appendix A.
This document has many technical differences compared to ISO 13266.2022.
A list of these technical differences and their causes is given in Appendix B.
The following editorial changes were made to this document.
--- Change the name of the standard to "Test method for resistance of thermoplastic manholes to ground and traffic loads" to conform to domestic industry practices;
--- Deleted the note in Chapter 1 of ISO 13266.2022;
--- Deleted footnotes a and c in Table 1 of ISO 13266.2022.
Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents.
This document was proposed by China Light Industry Federation.
This document is under the jurisdiction of the National Technical Committee for Standardization of Plastic Products (SAC/TC48).
This document was drafted by. Jiangsu Hemajing Co., Ltd., Sinopec (Beijing) Chemical Research Institute Co., Ltd., Shandong Dongxin Plastics Technology Co., Ltd.
Technology Co., Ltd., Zhejiang Zhongcai Pipeline Technology Co., Ltd., Fujian Yatong New Materials Technology Co., Ltd., Zhejiang Liansu Technology Industry
Co., Ltd., Chengde Precision Testing Machine Co., Ltd., SABIC (China) R&D Co., Ltd., Hebei Xinpeng Communication Equipment Co., Ltd., Hebei
Beishuanglongsheng Optoelectronics Technology Co., Ltd. and Jiangyin Zhongcai Mould Co., Ltd.
The main drafters of this document are. Zhou Minwei, Zhang Wei, Pan Fuqu, Wang Baiti, Chen Xiaomei, Yang Zhiliang, Wang Xinhua, Bao Yubin, Ai Xueying,
Sun Tieguo, Sun Di, and Zhou Jirun.
Thermoplastic manholes are resistant to ground and traffic
Load performance test method
1 Scope
This document describes the thermoplastic manhole upper assembly (usually including the shaft, offset end, expansion joint and pressure ring)
and traffic load performance test methods.
This document applies to the testing of the resistance of thermoplastic manhole upper assemblies to ground and traffic loads.
This document is not applicable to the testing of thermoplastic manhole covers and cover bases.
2 Normative references
The contents of the following documents constitute essential clauses of this document through normative references in this document.
For referenced documents without a date, only the latest version (including all amendments) applies to this document.
This document.
GB/T 23858 Inspection well cover
3 Terms and definitions
There are no terms or definitions that require definition in this document.
4 Principle
The test component is buried in the test box (or buried according to the on-site conditions) and load is applied (see Figure 1). During the loading process, the manhole cover or its
After the test is completed, check the appearance and defects of the upper assembly.
Other documents that reference this document may use the following test conditions different from those specified in this document.
a) Number of samples (see Chapter 6);
b) Maximum load (see Chapter 9);
c) Type of backfill material (see Chapter 9);
d) Compactness of backfill material (see Chapter 9).
5 Experimental equipment
5.1 Test chamber
The test chamber should be large enough to accommodate the test component and should be at least 0.3 m away from all sides of the plastic component.
It should be vertical and smooth, and the structure and strength of the test box should ensure that the deformation of any point of the test box during the test should not exceed 3mm.
5.2 Loading device
The required load can be applied to the middle of the manhole cover and can maintain a constant load for at least 15 minutes. The loading plate for applying the load should meet
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GB/T 45644-2025: Test method for resistance against surface and traffic loading of the thermoplastics inspection chamber
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