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Old 11-28-2011, 04:03 PM   #1
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Trench excavation


Hello there, can anybody give me procedure when excavating a trench for sewer pipes. first to excavate, then setting support, then pipe and than filling again? but how to set a pipe because all of support lattices? anybody has any experience?

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Old 11-29-2011, 06:23 AM   #2
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Trench excavation


generally speaking, you need to shore ANY excavation wherein men will be working more than waist deep - there are specific laws/procedures/certificates for this work 'cause people die every year. that being said, if you're doing this work for yourself on your own property, no one cares NOR can they stop you pipe supports are rare as bedding material is used more often than not

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Old 11-29-2011, 10:55 AM   #3
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Trench excavation


This doesn't sound like a typical DIY project. In fact, you are leaving out quite a few steps, including bedding material, survey, backfill compaction in lifts, etc. Call your local sewer department and they might be able to give you a standard drawing that shows their trench requirements.

However, everything you left out won't kill someone -- a poorly designed or poorly implemented shoring system will. I'm glad that you are at least thinking about the shoring system. I recommend reading this, as well as any state requirements that you have.

http://www.osha.gov/pls/oshaweb/owas...1926_Subpart_P

As far as how to install the pipe with the shoring in the way: the shoring system should be designed with the pipe segment length in mind. Your construction methods and the staging of the shoring also play a critical role in how you get the pipe into the trench. Call a shoring company and they might be able to recommend an engineer in your area. The engineer will help you design your shoring system and any required staging.

Last edited by loftezy; 11-29-2011 at 10:55 AM. Reason: grammar
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