Semi-inverse construction method of super large diameter, ultra-burial depth storage pond

Abstract

The invention relates to a semi-reverse construction method for a regulation pool with huge diameter and embedded depth, which relates to the technical field of building engineering construction, in particular to a construction method technique of a regulation pool with the diameter more than 30m and the embedded depth exceeding 7m. An SMW method pile is adopted in the retaining and protecting structure of the invention, and the manufacturing procedures are a pool top cover, an upper pool wall, a pool motherboard and a lower pool wall. The method combines the excellent performances of the bottom-up method and the reverse method, can not only realize the construction safety of the regulation pool, but also save the expenses of supporting and protecting the structure because deformation displacement in complicated surrounding environment is controlled. In addition, a construction process has little water penetration and is characterized by saving labor force and construction cost.

Description

technical field [0001] The invention relates to the technical field of engineering building construction, in particular to the construction method and technology of a storage tank with a diameter greater than 30m and a buried depth exceeding 7m. Background technique [0002] The rainwater storage tank is a new environmental protection newly introduced from abroad. Its main function is to collect the initial rainwater from the road (because the initial rainwater contains a lot of dust, oily garbage, etc.), temporarily store it, and then transfer it to the rainwater after the weather clears The main pipe is intercepted, and the sewage is discharged after being treated up to the standard. [0003] Most storage ponds are located in downtown areas and riversides, and generally the surrounding environment is relatively complex. The top of the pond is covered with a 2-3m thick layer of soil, and buildings, structures or planting greenery can be built on the upper part. Its enginee...

AI Technical Summary

Problems solved by technology

[0004] There are currently two construction methods, one is the straight method, that is, excavate from the ground down to the depth of the designed storage tank, and start construction from the lower foundation. This method is extremely dangerous for water seepage. Drainage outside is easy to cause the surrounding collapse, which has a great impact on the surrounding building foundation; the second is the reverse method, that is, first excavate the thickness of the upper roof, and then excavate downwards around the upper roof after the upper roof is completed. Excavate the height of the upper section of the pool wall. After the upper section of the pool wall is formed, excavate the lower section of the pool wall. After the lower section of the pool wall is formed, finally make the bottom of the pool. A steel structure horizontal support is added before the pool bottom can be constructed

This not only wastes a steel structure horizontal support, but also brings certain difficulties to the construction of the pool bottom. The more horizontal supports the steel structure has, the more difficult the construction under the horizontal supports is (while the semi-reverse construction method first constructs the bottom ring beam at the bottom of the pool, After the construction of the bottom ring beam is completed, it actually plays a supporting role in the construction of the lower part)

Images