T/JSAS 038-2023 Active Group standards

T/JSAS 038-2023 Gravity-based wharf cask airbag transportation technical specifications

Publish Date: 2023-07-24 Implement Date: 2023-07-25 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/JSAS 038-2023

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Port-specific facilities

ICS Name: Waterway transportation

Publish Date: 2023-07-24

Implement Date: 2023-07-25

Pages: 15 pages

Scope

Scope: This document specifies the technical construction specifications for the handling of gravity-type wharf caissons using airbags, including raw materials, equipment, facilities, performance requirements for handling operations, test methods, construction, personnel requirements, environmental and safety requirements, and monitoring and inspection requirements, etc. This document applies to the construction and quality inspection of gravity-type wharf caissons being handled using airbags; Main technical content: 3.2 Caisson: A structural component used in gravity-type wharfs, breakwaters, and revetments, which is prefabricated with a top opening, internal partitions, and can be floated and submerged by injecting water. 3.3 Handling: The horizontal movement of caissons using airbags beneath them. 3.4 Airbag: An airbag composed of three parts: the airbag body, airbag head, and airbag nozzle. The airbag body is the cylindrical part of the airbag; the nozzles installed at both ends of the airbag for inflation and deflation are called airbag nozzles; the conical parts connecting the two ends of the airbag body to the airbag nozzles are called airbag heads. The structure of the airbag is shown in Appendix A. 3.5 Working height (H): The height of the airbag after loading. 3.6 Bearing surface length (L): The axial length perpendicular to the handling direction and in contact with the bottom of the caisson after loading. 3.7 Effective length (LD): The diameter of the airbag body (D). 3.8 Bearing surface width (B): The radial width in contact with the bottom of the caisson after loading. 4 Equipment and facilities 4.1 Airbags 4.1.1 The type and diameter of the airbag should be determined based on the weight and dimensions of the caisson being handled and calculated after selection. 4.1.2 The length of the airbag should be calculated according to the planar dimensions of the caisson being handled and the diameter of the airbag, using the following