pipeline clearance for vibratory compaction
pipeline clearance for vibratory compaction
(OP)
Is there a standard recommended clearance for vibratory compaction of HMA mat overlying an existing pipepline? I have an existing waterline about 3.5 to 4 feet below the ashphalt layer being compacting. Is that enough clearance to use vibratory compaction method of the mat? I have been looking for a reference on this, but have yet to find anything substantial or conclusive. There is about 26-29 inches of clearance above the pipe. This material is predominantly SP or SM classification. The pavement section on top of the subgrade is 16 inches thick.
Thanks for your assistance.
- matt
Thanks for your assistance.
- matt





RE: pipeline clearance for vibratory compaction
depends on what condition the pipe is in, bedding type and the type of pipe. If it is AC pipe, you may have a problem. If iron pipe probably ok.
RE: pipeline clearance for vibratory compaction
RE: pipeline clearance for vibratory compaction
RE: pipeline clearance for vibratory compaction
RE: pipeline clearance for vibratory compaction
In addition, HMA compaction is high frequency, low amplitude. If any problem were to occur, it would happen during the compaction of the pipe, subbase, or base where higher amplitude vibration is used. But even at that, shouldn't be a problem.
RE: pipeline clearance for vibratory compaction
RE: pipeline clearance for vibratory compaction
RE: pipeline clearance for vibratory compaction
RE: pipeline clearance for vibratory compaction
Richard A. Cornelius, P.E.
WWW.amlinereast.com