Download Pipe Ramming Projects: Asce Manuals and Reports on by Mohammed Najafi (Editor) PDF

By Mohammed Najafi (Editor)

Pipe Ramming tasks offers the most recent and most sensible practices utilized by engineers and development pros for the layout and development of street and railroad crossings utilizing pipe ramming applied sciences. The guide is split into seven sections and relies upon the result of case reviews, workshops, undertaking experiences, technical papers, and different info contributed through specialists. half 1 offers normal recommendations and comprises an creation, background, contemporary suggestions, acceptable files, regular functions, and a word list of phrases. elements 2 via five supply very important info at the making plans, layout, preconstruction, fabrics, and development stages of the pipe ramming approach. half 6 offers a number of case stories, and half 7 encompasses a checklist of references. supplying either introductory and complicated layout and building info to aid the secure, low-budget, and effective software of the pipe ramming technique, this guide can be worthy to either new and skilled engineers, in addition to software proprietors, contractors, and different pros

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Extra resources for Pipe Ramming Projects: Asce Manuals and Reports on Engineering Practice No. 115

Example text

The selection of the construction methods or options should not be determined exclusively by contractors because contractors are often optimistic about their capabilities and may desire to execute a project for a variety of reasons, including a present lack of contract work and corresponding availability of specific equipment and crews. However, an understanding of the capabilities and limitations of the equipment and materials, and the constraints of ground conditions in combination with contractor experience, are key factors in implementing a successful pipe ramming installation.

The slow movement allows the operator to monitor line and grade at 1-ft intervals to achieve the required line and grade. After the first section of casing has been inserted, the ramming mechanism is reversed and the pneumatic or hydraulic power supply is shut down, and an additional section of casing is placed in the guide rail and aligned with the first casing. The adjacent casings may be welded or mechanically connected by an interlocking press-fit (Permalok brand) connection. If the first section of casing has a lubrication line installed, the two lubrication lines are tacked together.

Social costs should therefore be considered by owners and engineers as part of a “lifecycle cost” analysis during the project planning phase. In a conventional open-cut project, the majority of construction effort (approximately 70%) is expended for reinstatement of the ground surface. With trenchless methods, such as pipe ramming, a “better quality” pipe installation may be accomplished because most of the construction attention and efforts are directed toward the new pipe material and its installation.

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