Device to support section of major pipeline under repair in trench when doing repair works

International Conference on Construction, Architecture and Technosphere Safety 2018

土木建筑工程

Akhmedov, A.M.^1

Institute of Architecture and Civil Engineering, Volgograd State Technical University, Lenin Avenue, 28, Volgograd

400005, Russia^1

关键词: Bending stress;    Ground conditions;    Insulating coatings;    Multi-functional;    Process Technologies;    Repair methods;    Technological process;    Transverse force;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/451/1/012076/pdf
DOI  :  10.1088/1757-899X/451/1/012076

学科分类：土木及结构工程学

来源: IOP

【 摘 要 】

The article proposes a multi-functional innovative device for major repairs of main pipelines. The objective is the improvement of several process technologies through designing an innovative device for the "lean" realizing of repair works. The use of the device will enable to exclude the involvement of pipe-layers when carrying out some work processes as a part of major repairs techniques. The device is designed to preserve the environmental situation. With the help of the proposed device, during the implementation of capital repair methods, several technological processes can be performed: support of the repaired section of the pipeline, lifting the pipe section from the laying mark, moving the repaired section to the trench edge, laying the repaired section to the bottom of the trench. All of these processes, it is possible to perform with a full preservation of the integrity of the pipe insulating coating and its "body" along the entire length, without bending stresses, longitudinal and transverse forces in the areas of welded joints. For the implementation of technological processes, the device is installed at a certain distance from each other, which depends on the weight of the repaired section of the pipe, its diameter and ground conditions.