Application of Trenchless Technology in the Construction of Large-Diameter, Long-Distance Steam Pipelines
Time:
2018-08-17 17:27
During the 13th Five-Year Plan period, in response to the national drive for energy conservation and emissions reduction and in accordance with the principle of “heat-based power generation” in power investment and construction, an increasing number of steam combined-cycle units have been commissioned across the country. These cogeneration projects, as well as distributed energy systems providing heat, power, and cooling, deliver qualified steam to end-users via a network of dedicated steam pipelines. In the course of constructing such steam pipeline networks, it is often necessary to cross roads (and railways) and span rivers. Due to site constraints and surrounding environmental conditions, it is not always feasible to rely solely on open-cut trenching and overhead truss crossings during pipeline installation; consequently, trenchless construction techniques have demonstrated their distinct advantages. This paper, drawing on actual project experience, focuses on the application of trenchless technologies in the construction of large-diameter, long-distance steam pipelines.
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On January 15, 2018, Zhejiang Qingfa Pipe Fittings Technology Co., Ltd. conducted a completion environmental protection acceptance monitoring in strict accordance with relevant national laws and regulations and the Technical Specifications for Completion Environmental Protection Acceptance of Construction Projects, based on the “Completion Environmental Protection Acceptance Monitoring Report for the Technological Transformation Project of Zhejiang Qingfa Pipe Fittings Technology Co., Ltd.’s Annual Production of 5 Million PE Pipe Fittings,” prepared by Zhejiang Hongbo Environmental Monitoring Co., Ltd.
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