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Jacking Pipe Design of Long Distance Pipeline Passed Through the High-Grade Highway
With the development of China's national energy strategies, the construction of long- distance pipelines of the natural gas is increasing. A spate of legislation emerging from government at all levels aims ultimately to restrict open-cut excavation for construction of underground gas pipelines crossing high-grade highways. Pipe- jacking, as a new construction technology, for the trenchless installation of underground pipelines, is widely used for long-distance pipeline for crossing high- grade highways, due to its high-performance, high-quality and low cost. At present the theoretical analysis of pipe-jacking design lags to its successful practical application for the long distance pipelines. We have considered integrated stresses application when jacking pipeline under the influence of vehicle loads and have proposed a computational method of jacked pipeline under the condition of crossing a high-grade highway. The results may be used in the design of pipe jacking, mostly including a determination of the jacking force on the pipeline and bending moments acting within the structure. Using the example of a jacked pipeline passing beneath a high-grade highway in the second-line pipe project of West-East Gas Transmission, the results of the calculation method proposed in this paper are in very reasonable agreement with those obtained by the normative approach.
Jacking Pipe Design of Long Distance Pipeline Passed Through the High-Grade Highway
With the development of China's national energy strategies, the construction of long- distance pipelines of the natural gas is increasing. A spate of legislation emerging from government at all levels aims ultimately to restrict open-cut excavation for construction of underground gas pipelines crossing high-grade highways. Pipe- jacking, as a new construction technology, for the trenchless installation of underground pipelines, is widely used for long-distance pipeline for crossing high- grade highways, due to its high-performance, high-quality and low cost. At present the theoretical analysis of pipe-jacking design lags to its successful practical application for the long distance pipelines. We have considered integrated stresses application when jacking pipeline under the influence of vehicle loads and have proposed a computational method of jacked pipeline under the condition of crossing a high-grade highway. The results may be used in the design of pipe jacking, mostly including a determination of the jacking force on the pipeline and bending moments acting within the structure. Using the example of a jacked pipeline passing beneath a high-grade highway in the second-line pipe project of West-East Gas Transmission, the results of the calculation method proposed in this paper are in very reasonable agreement with those obtained by the normative approach.
Jacking Pipe Design of Long Distance Pipeline Passed Through the High-Grade Highway
Yang, Jian (author) / Chen, WenGuo (author) / Zhu, DaPeng (author) / Liu, ShaoXing (author) / Huang, Chao (author)
International Conference on Pipelines and Trenchless Technology (ICPTT) 2009 ; 2009 ; Shanghai, China
ICPTT 2009 ; 981-988
2009-09-15
Conference paper
Electronic Resource
English
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