empty height to be no smaller than 100 mms.doc

empty height to be no smaller than 100 mms.5)the underground hot water piping Be proper to have 0.002-0.005 slopes, ascent to lead into a tube entrance.Leading into the tube should has to leaks water a valve door and generally leak water constitution in the valve door in well in the valve door or the water meter well.6)the tube segment after preparing make need to be rechecked an and bracket to be apart from, elevation, slope, fill syrup strength to all satisfy request, put it into ditch or ground with rope or machine tool support in the ditch up, check to take care of a path, tube piece and it toward, after sitting a mark, elevation and slope without any error, from lead into tube start into each the door that diverge to take care of valve, link each of connecting.7)when the ground spreads to establish inside the ditch, mark according to the grass diagram, pack good and bracket.8)sign a tube to jilt a head, should notice to sign to take care of cortex to is apart from a that the wall decorates noodles to be apart from.(3)Each tube material covers up ground to spread to establish a request:1)the PP-R take care ofIndoorly spread to establish on 0.00 following pipings of ping proper divide two stages to carry on.The forerunner goes spreading of segment in the indoor to establish, to wall place outside the foundation wall;Need soil to set up a construction be over, outside wall scaffold after toring down, again carry on an outdoor conjunction to take care of of spread to establish.Indoorly the ping following piping spreads to establish, should set up an engineering time to fill soil in the soil popular actually after, re- open to dig to take care of ditch, spread piping to establish is taking care of inside the ditch.Strictly forbid before returning to fill soil or is having not yet to spread to establish piping in the popular solid soil layer.Taking care of the ditch bottom should be neat, can not have outstanding sharp hard object.The grain grain path of soil should not be bigger than a 12 mms, can spread when its necessary thick sand mat of 100 mm layer.The returning of tube surroundings fills soil to mix up sharp hard object while taking care of a ditch time to fill.The grain that should use sandy soil first or lead Shai path not more than 12 mms muds, return to fill into a tube crest an above 0.3 m, through sprinkle water popular actually behind again fill with the original soil time to tube ditch crest noodles.The indoors covering up covering up of a ground of piping deeply should not is smaller than 0.3 ms.Piping ground ping place, should establish a protection set tube, its height in response to Gao Chu Dis ping 100 mms.The piping is crossing foundation wall place, should establish metal set tube.Set the clean empty height of of bore crest that took care of crest and foundation wall to reserve bore, should press the sinking of building to decline a quantity assurance, but dont should be smaller than 0.1 ms.While crossing a garage way, pipings replying the soil depth should not be smaller than 0.7 ms.Should adopt strict protection measure while could not reaching this depth.2)aluminum Su compound tubes covering up ground to spread to establish should meet the following rules:Cover up ground the tube should install indoor parts of pipings first into the door and need soil to set up outdoors construction again carry on outdoors part of piping gearing and conjunction.Enter a door the tube cross outside wall place, should reserve hole, the hole highly should sink to decline quantity decision according to the building, generally tube crest above clean Gao should not be smaller than 10 mms.The De that is male to call outside path not less than 40 mms pipings, should adopt level to fold a curved juniors door.The piping wears a ground ping place indoors, should be taking care of the coat length not less than 100 mms metal set tube, the set root for taking care of should put to imbed a ground of ping layer 30-50 mms.Cover up the foundation loading of the tube ditch bottom of a ground of piping the dint dont should be smaller than a 80 kNs|m 2 and can not have a point hard bulge a thing.While taking care of a ditch time to fill inside the week of tube 100 mms of fill soil can not imply a grain of path more than 10 mms sharp hard piece of stone.The outdoors covers up the tube crest of a ground of piping to reply soil depth, in addition to shoulding be no smaller than to keep depth in deep freeze, doing not go a car ground should not be smaller than a 300 mms, going the car ground should not be smaller than 600 mms.The tube piece covering up ground to spread to establish should do an outside antisepsis processing.3)the super thin wall stainless steel plastics compound take care ofWhen the indoor covered up a ground of piping construction, should open to dig to take care of ditch to carry on spreading to establish after popular solid soil.The piping after spreading establish should check and accept qualified rear through a concealment engineering to return to fill.Should have no big grain strong and tough piece of stone in the middle of taking care of returning of surroundings and filling, be back to fill to be apart from a tube crest a 100 mm above juniors to go a normal regulations time to fill and start construction.The outdoors leads to become real expert inside of cover up proper cent two pieces of a ground of piping to spread to establish.The piping gearing completes indoors and stretch out outside the wall 200-250 mm juniors to go a temporary to block up, link an outdoor tube segment again while completing work juniors to go an outdoor engineering construction in the corpus building.When the piping covers up ground to spread to establish, can not cross equipments foundation and have the part that the concentration lotus carries.Outdoors covering up a ground of tube should spread to establish at keep line in deep freeze the following, and replying of tube crest the soil thickness dont should be smaller than 150 mms.The piping foundation soil layer should be popular solid, the piping spreads to establish to check and accept qualified rear to reply soil.While replying soil the piping surroundings should return to fill soil with the piece of stone or other strong and tough thing pieces not.When the artificial replies soil thickness to reach to a 300 mm above the square can adopt a machine time to fill and popular solid.(4)Try to press concealment1)all of the underground water supply piping finish installing and carry on water pressure to experiment rear concealment.For plastics tube water pressure experiment have to be installing a 24 h juniors to go.2)steady press a 1 h to repair to press behind to experiment the pressure value, steel pipe or compound piping system experiment the pressure pressure inside the next 10 minses decline to be no bigger than a 0.02 MPas, then decline to a work pressure to check, the pressure should not decline, and dont ooze, gastight;The plastics piping system is steady to press a 1 h under the on trial pressure, the pressure declines get not over the 0.05 MPas, then at work the pressure Be steady under 1.1500% statuses to press a 2 hs, the pressure declines get not over the 0.03 MPas, the conjunction not seeps into for qualified.3)through quality check member along with the material of the relevant personnel to the underground piping, tube path, sit mark, elevation and slope and ascent to, antisepsis, tube ditch foundation etc. check completely, confirm match design to request and norm behind fill in a concealment engineering record, the square can carry on taking care of a ditch time to fill.1.17.3.2.1.6The hot water signs tube gearing(1)Fixing is whole and dig a dozen of building planks to wear to take care of hole:Sign a tube to jilt a position according to each the water supply piping of underground paving, at crest layer building floor up find out to sign line position in the tube center, tee off a diameter 20 mm or so eyelet first