How can you install the casing pipe, by open cut trench or must it be jacked uner the road? If jacking is required, then you have fewer pipe choices,perhaps steel casing pipe, or RCP. For insulation in Wisc., we use closed-cell extruded polystyrene boards with minimum thickness of 2 inches...
Please review traffic calming theory and practices in the publication: "Traffic Calming, State of the Practice", by Reid H. Ewing, published by the Institute for Transportation Engineers, 1999. This is an excellent resource for understanding what traffic calming is and is not...
Yes, you need to be careful of the uplifting buoyant force during construction, but especially after backfilling and construction, when the groundwater comes back in to its "natural" elevation. You need to calculate the buoyancy force (per lineal foot of pipe) assuming maximum...
One of the other common challenges is finding new ways of getting programs implemented and projects built using new forms of inter-governmental cooperation and funding, and keeping the private side on the hook for improvements. In Wisconsin and perhaps elsewhere at this time and soft economy...
By the "Standard Specifications for Sewer and Water Construction in Wisconsin", Fifth Edition, Addn. No. 2, March 1, 1999, Chapter 3.7.0: "leakage test of snitary sewers" includes allowable limits of infiltration based on 200 Gal./In. Diam./Mile. Table 5:
Diam of sewer...
I think you have at least two design "issues", 1: designing and building a suitable foundation, and 2: the problem of having the pipe float upward under the hydrostatic pressure if it is below groundwater level. one refernce is "Buried Pipe Design", Moser A. P., McGraw Hill...
I agree you have very high, and perhaps dangerous pressures. The rapid change in pressure sounds like a water hammer problem. Is this pipeline fed by a well, or what other source. The pump going on and shutting off could be your source of hammer. do you have a dampening check valve in place...
We have used calcium nitrate solution for hydrogen sulfide suppression. US Filter offers this solution by their trade name, Bioxide. They will make dosage calculations for you. Please note that the owner of the sewage collection system may ask you to add more than enough treatment chemical to...
I suggest you start with your local pipe supplier. They should have some suggestions on proper restraint of hanging pipe. If they can't help, check your periodicals that advertise various restraint devices.
I am not aware of any way to straighten your pipe without destroying it. sounds like there may be poor soils or bedding under it. If you could sonmehow straighten it, you have not solved the issue of poor soils or bedding, and pipe would settle again. If you cannot diturb the road, you may...
