Small-diameter observation well set-shaped steel formwork pouring construction method

Abstract

The invention relates to the technical field of observation well construction, in particular to a small-diameter observation well set-shaped steel formwork pouring construction method. The method includes the following steps of mounting of formwork sets for supporting; foundation concrete dabbing, cleaning, reinforcement cage mounting, inner steel formwork mounting, outer steel formwork mounting,formwork set correcting, concrete pouring, concrete curing and formwork detaching. The construction difficulty is lowered, the construction period is shortened, the construction quality is guaranteed,a large number of supporting steel pipes, buckles and other materials can be saved, the construction cost is low, the construction precision is high, the materials can continuously and cyclically circulate for use, mounting is easy and convenient, the strength and the rigidity are high, the deformation is low, the perception quality is high, detachment is easy in narrow space, the labor intensityis reduced, the construction mechanization level is improved, and use of labor force is reduced.

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...

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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

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