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Posted: Tue Aug 17, 2010 8:54 pm
by junior02
hi to the forum. can any members help me with problem. i will be laying 450mm concrete pipes, want to know what goes in manhole is it butt end or spigot end and what do i come out of manhole with spigot or butt end, and i have pipes with 6in holes in to pick up gullies do these pipes have to be laid so hole is at top or on side to pick up gullies, and when setting laser how do i set it for the direction to the next manhole pin set buy the engineer. thanks in advance for any help..
Posted: Tue Aug 17, 2010 9:23 pm
by lutonlagerlout
are you sure you should be doing this?
all drainage goes male into female in the direction of flow
but laying 450 drains will need a machine driver ,banksman and an experienced pipe layer
no room for error
are you working with someone else?
LLL
Posted: Tue Aug 17, 2010 9:32 pm
by junior02
yes working with 1 person and excavater driver, so its male to female in direction of flow,cheers for that, what about the pipes to pickup the gullies are they laid so that the 6in inlet hole is on the side then pick up on 45degree bend or on the top?
Posted: Tue Aug 17, 2010 9:35 pm
by flowjoe
Sean, where are you ! !
Posted: Wed Aug 18, 2010 7:00 am
by seanandruby
laying pipes that needs a machine to lift them in place is a risky job in the wrong hands, ie unskilled labour. You need a square end going into the manhole with coller out to take the rocker pipe. That's ok if your going up the trench but sometimes there is a need to lay down flow, which makes it that much harder to push them home. The holes need to be top and use a slight radius for direction.
Posted: Wed Aug 18, 2010 7:05 am
by seanandruby
......sorry doing on phone, so limited to amount of text. Push them in square with machine using 6x4 to stop damage to pipe. You can tweak them over once their in but only a few degrees on each pipe. Use plenty of greece if already got rubber in, no greece if it's a seperate rubber. Hope this helps.
Posted: Wed Aug 18, 2010 7:29 am
by seanandruby
You can set laser to the gradient, has been known to backfall :;):
Posted: Wed Aug 18, 2010 8:27 pm
by rab1
dont take this the wrong way mate, but think you should pm sean and ask for all the help he can give you. :p
Posted: Wed Aug 18, 2010 8:36 pm
by junior02
thanks for the advice sean,, cheers mate, and hi rab, not taken it wrong way and i will pm sean if get any probs. cheers again lads..
Posted: Wed Aug 18, 2010 8:58 pm
by msh paving
Posted: Wed Aug 18, 2010 10:33 pm
by GB_Groundworks
are you using trench shoring? how deep are the pipes, trench boxes or sheet pilling or battering the trench back to 45 degree sides? what you bedding them on and back filling with?
Posted: Fri Aug 20, 2010 6:59 am
by seanandruby
well done you found the deliberate mistake. I can see i will have to make it trickier for you next time. Just came back from 2 weeks in crete, so grease is on my mind at the moment :;):
Posted: Fri Aug 20, 2010 7:21 am
by flowjoe
According to Frankie Valli, Greece is the word 
Posted: Sun Aug 22, 2010 7:42 am
by seanandruby
How did it go junior?
or are we using pipe lube grease.....