2001, 5(02):3-8. DOI: 10.59238/j.pt.2001.02.001
Abstract:
2001, 5(02):9-17. DOI: 10.59238/j.pt.2001.02.002
Abstract:
2001, 5(02):18-20. DOI: 10.59238/j.pt.2001.02.003
Abstract:This paper introduces the tracing material, anchorage, construction machinery, construction technology and treatment methods of several special conditions used in high slope prestressed anchor cable retaining engineering.
2001, 5(02):21-25. DOI: 10.59238/j.pt.2001.02.004
Abstract:Through the application of welding technology of HDPE Harvard pipe in Shidaqiao project, the material characteristics of HDPE, PE welding device, working principle and key points of technology are introduced.
2001, 5(02):30-36. DOI: 10.59238/j.pt.2001.02.006
Abstract:It is that first time that the double circle surround unbonded prestressed concrete lin structure is used in the desilting tunnel of Xiaolangdi multipurpose dam project on the yellow river. this pap summarizes the characteristics of the structure, introduces the prestressed construction technology of concrete lining, and makes a statistical analysis of the prestressed tension data.
2001, 5(02):37-38. DOI: 10.59238/j.pt.2001.02.007
Abstract:This paper introduces the structural characteristics, development process and engineering principle of the ultra-high pressure rotary valve manual hydraulic directional valve. This rotary valve manual hydraulic directional valve can reliably seal the high pressure below 86MPa, with good sealing stability and good application prospect.
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