A Construction Technology for Concreting of Inclined Shafts

Abstract

The invention discloses a construction technology for inclined shaft concrete pouring. According to the construction technology for the inclined shaft concrete pouring, the problem that the construction quality is difficult to ensure because the span of an inclined shaft is large, and the soil textures of rock stratums everywhere have differences is solved. According to the technical scheme, the construction technology is characterized in that the range of the inclined shaft concrete pouring comprises an upper bending section, a straight section, a lower bending section and a lower flat section, and the specific construction technology includes the following steps of rock surface cleaning ; paying off and warehouse separating; reinforcing steel bar production and installation; installing of sliding molds on the straight section part of the inclined shaft; examining of the mold surface radian and flatness of a set-shaped steel mold on the upper bending section, the lower bending section and the lower flat section; painting of releasing agents; synchronous conducting of installation and correction; reinforcing by adopting a set-shaped steel arch frame, a steel pipe and a tiepiece; installing of embedded parts; installing of end cap molds; concrete pouring; and demolding and maintenance. The fact that targeted construction is conducted for each section of the inclined shaft is achieved, so that the construction quality is improved.

Description

technical field [0001] The invention relates to building construction, in particular to a construction technique for pouring concrete in inclined shafts. Background technique [0002] Since the late 1980s, my country has begun to build pumped storage power stations. The water head is generally as high as several hundred meters, and the length of the diversion inclined shaft is also hundreds of meters. The inclined shaft is a unique building for underground diversion hydropower stations. Concrete lining construction is a project with complicated technology and difficult construction, and the construction conditions are complicated. [0003] Such as the authorized announcement number is CN1261672C patent discloses a kind of construction method of concrete lining slipform of steep-inclination large-diameter inclined shaft, a hydraulic lifting system is installed on the slip-form form body of steep-inclination large-diameter long inclined shaft concrete lining, and the system con...

AI Technical Summary

Problems solved by technology

[0002] Since the late 1980s, my country began to build pumped storage power stations. The water head is generally several hundred meters high, and the length of the diversion inclined shaft is also hundreds of meters. The inclined shaft is a unique building for underground diversion hydropower stations. Concrete lining construction is a project with complicated technology and difficult construction, and the construction conditions are complicated

[0004] In the construction of the inclined shaft of the pressure pipeline, due to the large span of the inclined shaft, the soil quality of each rock layer is different, and the concrete pouring range of the inclined shaft includes the upper curved section, the straight section, the lower curved section and the lower flat section, and the construction needs to be targeted , it is difficult to guarantee the construction quality only by slip-form pouring

Images