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Remember these ten items..
Implementation / optimization effect of advanced water stop technology of post cast strip on basement exterior wall: accelerate the construction progress of foundation pit backfilling and solve the site layout and traffic problems on the construction site.
Technical innovation: the advanced water stop technology of the post cast strip on the outer wall of the basement adopts the precast concrete cover plate to close the outside of the post cast strip in advance, which will not affect the waterproof construction of the outer wall of the basement due to the intermittent construction technology of the post cast strip, so as to speed up the backfilling progress of the basement foundation pit, facilitate the general layout at the later stage of the site, and reduce the water seepage risk of the post cast strip on the outer wall of the basement.
Before the concrete pouring of the post pouring belt, the garbage generated by chiseling on both sides of the post pouring belt will fall into the groove, and finally the post pouring belt will be closed by concrete pouring.
Implementation / optimization effect of pit in pit concrete retaining wall construction technology: accelerate pit in pit construction efficiency, improve pit in pit construction safety and save construction cost.
After that, the waterproof layer and backfill shall be constructed simultaneously with the overall structure at the post cast strip.
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Technical features: the concrete retaining wall in the pit adopts double-layer and two-way reinforcement binding (which can be calculated and adjusted according to the depth of the pit), and the concrete adopts c30p8 impermeable concrete.
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Applicable project / scope: deep foundation pit engineering.
Technological innovation: adopting the construction technology of sunken post cast strip and optimizing the original design plane post cast strip into sunken post cast strip can reduce the cleaning cost of post cast strip and reduce the cost.
Technological innovation: the construction technology of pit in pit concrete retaining wall is adopted to replace the traditional brick tire formwork construction, reduce the construction volume of on-site workers, improve the construction efficiency, have good forming quality and strong integrity, and improve the construction safety of pit in pit.
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The parameters such as the height of concrete retaining wall may be determined by calculation~~ Malicious arrears of wages of 126 migrant workers, the boss of a construction labor company in Jiangxi was sentenced to save so much money by controlling costs? Have you learned how to make people? It’s not difficult to make a budget, but it’s not easy to do a good budget.
The waterproof coiled material of the bottom plate is made as an additional reinforcing layer here, and a protective layer is made above the waterproof layer.
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Technical features: a groove with a depth of about 250mm is reserved at the post cast strip of the bottom plate.
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Applicable project / scope: post cast strip for basement roof settlement.
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Technological innovation: after the construction of the basement roof structure is completed, the post cast strip is covered with 120mm thick precast reinforced concrete cover plate, and one precast cover plate is reserved every 4m Φ 300 orifice plate (continuous reinforcement), 3M long reinforced concrete precast pipe（ Φ 300) stand on the hole as the pouring hole of concrete.
the spacing is reduced to 2 ~ 3M) to prevent the self compacting concrete from flowing forward due to increased resistance at the corner.
Applicable works / scope: all including basement construction works.
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Technical features: the pouring holes are arranged at a spacing of 4m, one hole must be arranged at both ends, and one must be added at the corner of the post pouring belt (i.e.
The implementation / optimization effect of pre sealing technology: in order to backfill the basement roof in advance, Provide construction sites and roads.
After the settlement of the structure is stable, the self compacting expansive concrete shall be poured into the back pouring belt through the pouring hole, and the settlement back pouring belt shall be closed.
Implementation / optimization effect of construction technology of bottom plate sinking post cast strip: reduce the amount of chiseling and cleaning during the construction of bottom plate post cast strip.
Applicable project / scope: projects with more post cast strips of base plate and designed according to the traditional post cast strip.
Technical features: the precast concrete cover plate is processed with on-site reinforcement surplus and concrete surplus, the reserved water stop screw is welded with the post cast strip reinforcement of the outer wall, the external corner of the connection between the cover plate and the outer wall is blocked with waterproof mortar, and the waterproof 3 basement roof post cast strip is laid outside.
This method can reduce the workload of chiseling and cleaning of post cast strip and effectively reduce the cleaning cost.
