题名: |
Preparation of Construction Specifications, Contract Documents, Field Testing, Educational Materials, and Course Offerings for Trenchless Construction. Trenchless Construction Methods, and Implementation Support. |
作者: |
DAVIS, G.; GUNNICK, B.; NAJAFI, M. |
关键词: |
CONSTRUCTION; PIPES; UNDERGROUND |
摘要: |
Trenchless technology offers methods by which underground utilities may be installed without damage to overlying pavement, if proper precautions are observed. In the past ten years, repeated improvements in technology, materials, and methods have advanced faster than the guidelines and specifications for use of the technology. In addition, training in the technology for designers, engineers, and inspectors has not kept pace with developments. Field observation and testing of four different types of horizontal boring and four different pipe types installed for these borings has led to the successful development of a new performance specification for Pipe Installation by Horizontal Boring, Section 734 of the Missouri Standard Specifications for Highway Construction. In addition, a new material specification has also been added to the Standard Specifications as a result-- Section 1075--Centrifugally-cast Fiberglass Reinforced Polymer Mortar Pipe. Observation of an actual MoDOT construction pipe jacking installation was followed by three separate horizontal bore installations on property of the University of Missouri-Columbia. |
报告类型: |
科技报告 |