Construction process of cast-in-situ bored pile

Abstract

The invention discloses a construction process of a cast-in-situ bored pile. The construction process comprises the steps of lofting the position of the pile, positioning a pile machine, forming a pile foundation hole, manufacturing and mounting a reinforcement cage, placing a guide pipe, pouring concrete and detecting an engineering pile. The construction process has the beneficial effects that apile position control pile adopts a wood pile and a small nail, the buried depth is not less than 20 cm, and the pile position is preferably protected; additionally, stake numbers are marked, so thatconfusion is prevented; control points of a construction site are checked frequently, so that errors are avoided; a steel plate with the thickness of 20 mm is cushioned under the pile machine, so that uneven subsidence is avoided, and excessive vertical deflection of the formed hole, unqualified perpendicularity and even toppling accidents of a drilling machine are avoided; and according to the construction process, mechanical equipment which adapts to engineering and has good performance is adopted and is scientifically arranged on a production line, so that the production capacity of the equipment is brought into full play, and the environment-friendly and civilized construction is facilitated.

Description

technical field [0001] The invention relates to a bored cast-in-situ pile, in particular to a construction technique of a bored cast-in-situ pile, which belongs to the technical field of building construction. Background technique [0002] A pile foundation consists of piles and pile caps (see pile foundation). Pile construction methods are divided into two categories: prefabricated piles and cast-in-situ piles. The selection of piling methods should not only be based on engineering geological conditions, but also the type, section, length, site environment and design requirements of the pile. At present, pile foundation construction is widely used in housing construction, transportation, railways, urban rail and municipal construction in my country. For many fields such as engineering, for the existing cast-in-situ pile construction, the protection of the pile site is poor, which is easy to cause construction errors. In addition, when the pile driver is working, the vertica...

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Problems solved by technology

The selection of piling methods should not only be based on engineering geological conditions, but also the type, section, length, site environment and design requirements of the pile. At present, pile foundation construction is widely used in housing construction, transportation, railways, urban rail and municipal construction in my country. For many fields such as engineering, for the existing cast-in-situ pile construction, the protection of the pile site is poor, which is easy to cause construction errors. In addition, when the pile driver is working, the vertical deflection of the hole will be too large due to the unsolid ground. large, the verticality is unqualified, and even lead to the accident of drilling rig dumping, and the construction process lacks standardization, which leads to various problems during construction and affects the construction progress. Based on this, this application proposes a construction technology of bored piles

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