Research on Design of Utility Tunnel Integrating Large-diameter Thermal Pipes
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第36卷
Number:
8 8
Page:
82-87
Column:
Date of publication:
2020-04-17
- Abstract:
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Based on a practical project of the utility tunnel in a city in the north of China, some important problems in the process of the non-steam large-diameter thermal pipe entering the utility tunnel were introduced. It was pointed out that in the section design of the utility tunnel, the arrangement of largediameter thermal pipe in utility tunnel should be combined with the planning authority requirements, utility tunnel surrounding environment, and the pipeline types. In the horizontal and vertical pipe utility design, the angle should not appear in horizontal and vertical sections. If there is angle on horizontal and vertical sections at the same place in the main structure of the utility tunnel, the angle on the horizontal direction should stagger with the vertical angle. In the design of exclusive junctions of tunnel utility, the installation requirements of pipes and pipe joints should be considered, the branch length and reserved hole of the junction set based on the installation requirement of pipeline; the exclusive junction should be set up to facilitate the access and output of thermal pipe; the local protruding position inutility tunnel should be arranged on the other side of the thermal pipe. In the installation design of the utility tunnel, if sectional valves were installed in the utility tunnel, space should be reserved for installation of sectional valves; and it was suggested to simultaneously carry out the embedded parts of the support when the main structure of the utility tunnel were constructed.
Last Update:
2020-04-17