Cast pumping well sleeve installing method

Abstract

The invention relates the field of casting well construction, in particular to a cast pumping well sleeve installing method with the advantages of greater convenience, higher speed, high reliability and economization. The method comprises the following steps of: A, performing earth excavation on the field leveling ground to form a cast pumping well construction foundation pit; B, downwards and manually digging a pile hole sleeve installing pore passage in the cast pumping well earth excavation foundation pit, wherein the pore passage depth exceeds the sleeve bottom design elevation for a certain depth being about 300mm; C, installing a sleeve base installing positioning ring, using concrete for filling and fixation on the periphery, putting an embedded element to install a sleeve base and to install guide sectional steel, and forming a sleeve installing shaping concrete bottom mold structure; D, performing cast pumping well sleeve installation, constructing a sleeve upper opening fixing frame after the sleeve bottom reaches the proper position, fixing the sleeve upper opening and putting the sleeve upper opening to the proper position; E, performing sleeve periphery concrete filling fixation; and F, performing cast pumping well construction. The method has the advantages that the construction period and the cost are reduced, and the method is particularly applicable to processes requiring high-efficiency cast pumping well construction realization.

Description

technical field [0001] The invention relates to the field of casting well construction, in particular to a casing installation method for a casting machine well. Background technique [0002] In the aluminum alloy industry, large-scale aluminum processing plants, aviation material parks, etc., usually build casting machine wells in the factory building, and the casting machine well casing (the oil cylinder installation hole at the bottom of the casting well) must first be installed in the deep foundation pit at the bottom of the casting machine. ). Casting machine well casing is a bottom-sealed steel pipe made of steel plate processing and rolling. Its upper opening is located in the concrete of the casting machine well floor, and its lower part is fully embedded in the earth below the casting machine well bottom plate, and the buried depth is usually 10 meters. More than above, therefore, construct casting machine shaft must earlier install sleeve pipe in deep foundation p...

AI Technical Summary

Problems solved by technology

However, a large amount of water and mud discharge are required to form the drilling rig punching tunnel, the process is complicated, the construction site is polluted, and the cost is high; the installation of the pre-embedded steel casing is installed with mud in the deep hole, and the installation diameter must be increased if it is not tight , the process is complex and cumbersome, the cost is high, and the accuracy of the elevation and center is difficult to control. Therefore, there are great opportunities for rework after installation, and the rework cost is extremely high and the construction period is quite long, which will increase the cost of the entire project and increase the difficulty of construction.

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