Integral Pouring Technology of Reinforced Concrete Wastewater Pool in Pre-drilling Project

Abstract

The invention discloses an integral casting process for a reinforced concrete wastewater tank in predrilling engineering. The integral casting process comprises the following steps of a, construction of a foundation and a bedding layer, digging a foundation pit, and casting the concrete bedding layer after determining that the foundation bearing force meets the design requirements; b, manufacturing and installation of reinforced bars, manufacturing and installing on site, wherein the overlapping length of the reinforced bars should not be less than 40 times of the diameter (mm) of each reinforced bar, and the overlapping area of the reinforced bars same in cross section should not be more than 50% of the total area; c, supporting of die plates, binding the die plates into the shapes of the bottom and the wall of a concrete tank; d, casting of concrete, after completing the construction of the reinforced bars and the die plates, carrying out the casting construction of concrete, firstly casting the bottom of the concrete tank and the wall with the height less than 1m, leveling the top of the wall of the concrete tank, and reserving no step to complete the first time of casing; casting the residual wall of the concrete tank in at least one hour after completing the first time of casting; and e, removal of the die plates, removing the die plates when the strength of the cast concrete being more than 1.2MPa. The integral casting process has the advantages that the construction time of the wastewater tank in the predrilling engineering is reduced, the construction period of the whole predrilling engineering is shortened, the condition of drilling machines not waiting for well fields is ensured, the construction seams are not reserved in the construction, and the leakage problem caused by the construction seams is avoided.

Description

technical field [0001] The invention relates to an integral pouring process for a pre-drilling engineering reinforced concrete wastewater pool, and belongs to the technical field of construction of a pre-drilling engineering wastewater pool. Background technique [0002] The pre-drilling project is an essential and important link in oil exploration and mining. The wastewater pool is an important facility for storing, treating, and purifying wastewater generated during oil exploration and mining operations. During the construction of the pre-drilling project and the use of drilling operations appear to be very important. [0003] In the existing pre-drilling projects, most of the wastewater pools are designed in two forms: stone masonry and reinforced concrete pouring. In recent years, with the continuous improvement of environmental protection requirements, more stringent control has been adopted on strip mining operations that damage the ecology. Many places have completel...

AI Technical Summary

Problems solved by technology

This technology also has the following problems in practical application: The operation sections are short, there are many vertical layers, and there are many step-shaped construction sections. The construction time of stubble is not easy to control, and construction joints are prone to appear, which affects the impermeability of the pool; In this method, "the first layer starts from the bottom of the pool, the inner and outer bottoms of the construction section are poured to the design elevation and vibrated until the slurry no longer flows, and the second layer (that is, the pool wall starts) is poured", the vibration time of the first layer If it is too long, it is easy to cause concrete segregation, cement and stone separation, sand to sink to the bottom and cement to be fully vibrated to the top, resulting in uneven and dense concrete structure, affecting structural strength and durability; The steel formwork is used and iron parts are not allowed to penetrate the pool wall, and the supporting steel bars in the formwork have no place to take root, so it is difficult to fix and the formwork is easy to skew

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