Is Jetting illegal??
Is Jetting illegal??
(OP)
Recently, a union rep informed that Jetting to achieve compaction on a washed sand or jetting to pothole is illegal in the state of California. Does anyone know if this is true???
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RE: Is Jetting illegal??
RE: Is Jetting illegal??
RE: Is Jetting illegal??
Richard A. Cornelius, P.E.
WWW.amlinereast.com
RE: Is Jetting illegal??
Based upon my experience, jetting to consolidate pipe zone material was commonly used in Southern California until at least the mid 90's. I left California and haven't been involved with any construction there since that time, but imagine that jetting is likely still allowed by many agencies in that region.
RE: Is Jetting illegal??
RE: Is Jetting illegal??
In my experience in southern california in the San Bernardino County area, this was the preferred method and used on most projects.
RE: Is Jetting illegal??
I did however happen to notice also some time ago that the clay pipe folks e.g. at http://www.ncpi.org/Handbook/handbook04.htm now do say under the heading “Geofabric”: “Crushed rock or other coarse aggregate is recommended and used as a bedding material to improve the load bearing capacity of pipe”, and they appear to now in this area specifically dissuade the use of “fine to medium sands” for clay pipe bedding (at least in some circumstances). I don’t know exactly why that caveat was at some point added involving required support for clay pipe systems, but I also noticed in a news article not long ago it appears something like the phenomena discussed may have been used to explain some problems that eventually happened to a clay pipe installation after some significant precipitation/flooding in the Philadelphia area. While I don’t presume to be an expert in that construction field, I’m not sure exactly where that leaves them with regard to ”jetting” ( that I would assume by its nature and this thread requires some sort of sand, and also from reading some of the good replies on this thread sort of “drainability” in the basic trench).