A construction method for pouring shaped steel formwork for small-diameter observation wells

Abstract

The invention relates to the technical field of observation well construction, in particular to a small-diameter observation well shaped steel formwork pouring construction method, which includes the following steps: installing formwork group supports, chiseling and cleaning foundation concrete, installing steel cages, installing inner steel formwork, and installing outer steel formwork. Steel formwork installation, formwork group correction, concrete pouring, concrete curing, formwork removal, which reduces the construction difficulty, shortens the construction period, ensures the construction quality, can save a lot of supporting steel pipes, fasteners and other materials, low construction cost and high construction accuracy , The material can be used in continuous circulation, easy to install, high strength, high rigidity, small deformation, good appearance quality, easy to disassemble in a small space, reduced labor intensity, improved construction mechanization level, and reduced labor use.

Description

technical field [0001] The invention relates to the technical field of observation well construction, in particular to a small-diameter observation well shaped steel template pouring construction method. Background technique [0002] With the further improvement of water conservancy project management and monitoring requirements, the monitoring and observation of reservoir hydrology and water regime, water quality and dam safety requires the construction of reservoir observation wells on the upstream slopes of large, medium and small reservoirs that have been built or are under construction. The observation well project is a reinforced concrete structure with a large height (more than 20 meters), a small outer diameter, and an inner diameter of usually only 1 meter. The space for workers to move is small, causing great difficulty in installing and dismantling the formwork, and is also very dangerous. The common formwork construction method commonly used now needs to set up f...

AI Technical Summary

Problems solved by technology

[0002] With the further improvement of water conservancy project management and monitoring requirements, the monitoring and observation of reservoir hydrology and water regime, water quality and dam safety requires the construction of reservoir observation wells on the upstream slopes of large, medium and small reservoirs that have been built or are under construction. The observation well project is a reinforced concrete structure with a large height (more than 20 meters), a small outer diameter, and the inner diameter is usually only 1 meter. The space for workers' activities is small, which makes it very difficult to assemble and dismantle the formwork, and is very dangerous

The common formwork construction method commonly used now needs to set up formwork brackets and working scaffolds, and when the inner formwork is removed, the danger of construction personnel is greatly increased; the traditional sliding form method is difficult to implement because the inner diameter of the observation well is too small, and the sliding formwork Compared with the small volume of observation wells, the high cost of the system is not economical

Images