Automatic head-expanding device of side slope support water drain pipe and construction technology for increasing water facing surface

Abstract

The invention discloses an automatic head-expanding device of a side slope support water drain pipe and a construction technology for increasing a water facing surface. Four symmetrical vertical openings are sawed on a pipe head of the PVC water drain pipe by an electric saw, a mechanical expander is installed, the left and right ends of a sliding fixed rod are respectively connected with a pipe wall fixed plate, the pipe wall fixed plate is connected with a vertical force-bearing rod through a lateral thrust and force transferring rod, and the vertical force-bearing rod passes through the central hole of a circular pipe of the sliding fixed rod; a limiting baffle and a hinged transmission fixed support are arranged at the 2 / 3 position of the upper end of the pipe wall fixed plate, the twoends of the lateral thrust and force transferring rod are connected with the hinged transmission fixed support of the pipe wall fixed plate and a connecting rod support of the vertical force-bearingrod; a layer of water filtering fiber net is wrapped in the range of 250 mm at the bottom of the pipe, and then the net is tied up and fixed by a ribbon around the outer wall of the pipe; by applyingpushing force to the bottom of the pipe, the mechanical expander at the bottom of the pipe can expand the pipe wall in the range of 20 cm at the pipe bottom to the two sides, the expanded pipe wall withstands the soil of the hole wall, the expanded pipe wall expands the water filter net together, the maximum expanding width is increased by 4 cm, the pipe wall is sawed to 1 cm, the area of a waterseepage port is expanded and increased, and the water drain pipe is stabilized at the same time.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to an automatic head-expanding device for a slope support discharge pipe and a construction technique for increasing the water-facing surface. Background technique [0002] With the rapid development of the national economy, housing construction and road transportation facilities are also undergoing a large number of constructions with the pace of economic development, and the amount of land is also increasing. In many cases, it is necessary to open mountains to make land, and excavating hills will form a large number of slope. Slope support engineering is extremely important to the protection and safety of on-site facilities. As a very important measure to ensure the stability of slope engineering, the drainpipe is used. At present, a large number of old slope discharge pipes that have been supported for many years are seriously blocked, and a large number of discha...

AI Technical Summary

Problems solved by technology

At present, a large number of old slope discharge pipes that have been supported for many years are seriously blocked, and a large number of discharge pipes have lost their drainage function soon after being installed, and some slope supports are not even equipped with discharge pipes.

According to the current installation process during the reconstruction of the old slope, the water surface at the bottom of the drain pipe is small, and the installation of the drain pipe is often not firm during construction.

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