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  Cross

  Release time： 2016 - 03 - 13

  The selection of instructions·General situation selection instructions1. Plastic drainage inspection well design, construction, inspection and maintenance in the new, expansion and renovation of urban and rural areas of municipal, residential area, public construction area of underground drainage pipeline project, the inspection well diameter is less than or equal to 1000 mm, the buried depth is less than or equal to 6 m.2. Can human operation check Ii (pipe wall) well diameter should be greater than or equal to 700mm.3. The water outlet of the road should be used in the inspection well seat of the mud chamber, the 450 is the start of the rain water outlet and the well diameter of the heavy mud well, and the well diameter is larger than the diameter of the drain pipe.4. Well bore diameter is less than 700mm is in the shape of straight wall wells, wells wellbore diameter greater than 700mm shape for closing wells, wells close to 700mm diameter.5. The well diameter of the well bore ...

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  Solid shaft

  Release time： 2016 - 04 - 19

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  HDPE double-wall corrugated pipe160

  Release time： 2016 - 04 - 26

  ·The pipeline1.slot construction craft, according to the construction site environment, the groove depth, the underground water level, soil condition, construction equipment and seasonal influence factors such as comprehensive selection.2.groove bottom width of dispute, in accordance with the groove depth, ground water, soil conditions and easy to operate, these provisions empty groove width table can be used for reference in the involved, the construction unit.3.underground water level is higher than the chamfered bottom elevation, when construction must take effective measures to underground water level dropped to the bottom of the channel under 0.3 to 0.5 meters.4.excavation groove, should strictly control the base elevation, shall not be disturbed base and overexcavation.Basement involved in elevation above 0.2 to 0.3 meters of undisturbed soil shall be preserved, before laying with artificial stripping to the design elevation. Piping specificationDN225DN300DN400DN500DN60...

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  HDPE double-wall corrugated pipe225

  Release time： 2016 - 04 - 26

  ·The pipeline1.slot construction craft, according to the construction site environment, the groove depth, the underground water level, soil condition, construction equipment and seasonal influence factors such as comprehensive selection.2.groove bottom width of dispute, in accordance with the groove depth, ground water, soil conditions and easy to operate, these provisions empty groove width table can be used for reference in the involved, the construction unit.3.underground water level is higher than the chamfered bottom elevation, when construction must take effective measures to underground water level dropped to the bottom of the channel under 0.3 to 0.5 meters.4.excavation groove, should strictly control the base elevation, shall not be disturbed base and overexcavation.Basement involved in elevation above 0.2 to 0.3 meters of undisturbed soil shall be preserved, before laying with artificial stripping to the design elevation. Piping specificationDN225DN300DN400DN500DN60...

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