Novel sloping field constructional engineering pile construction method

Abstract

The invention discloses a novel sloping field constructional engineering pile construction method. The method comprises the steps that the specific position of an original punched cast-in-place pile is explored through ultrasonic waves, and a pile head of the original punched cast-in-place pile is excavated through a small excavator or manual earth excavation; after the pile head of the original punched cast-in-place pile is excavated, concrete of the pile head of the original punched cast-in-place pile is broken and chiseled through a cannon machine, the center of the pile head of the original punched cast-in-place pile is chiseled away, a groove is chiseled out, and the groove is 300 mm in length, 300 mm in width and 300 mm in depth; butt joint pile main reinforcements and original punched cast-in-place pile main reinforcements are in lap joint in a double-face welding manner, welding slag is removed in time after welding, then the butt joint pile main reinforcements are hooped, andthe diameter and the distance of stirrups of the butt joint pile main reinforcements are the same as those of the original punched cast-in-place pile main reinforcements; and by the adoption of the novel sloping field constructional engineering pile construction method, ground operation can be achieved in engineering pile splicing construction, pile splicing construction is convenient and rapid through ground operation, the quality level is improved, safety risks are reduced, meanwhile, the stress area of a pile foundation is increased, the stress performance of the pile foundation is improved, and the service life is prolonged.

Description

technical field [0001] The invention relates to the field of construction, in particular to a construction method for construction engineering piles on slopes. Background technique [0002] With the development of social economy, the requirements for production efficiency are getting higher and higher. In the construction industry, most of them are large-scale engineering construction. When it comes to large-scale construction of engineering piles, the mode of segmented construction is often adopted. In In the case of tight construction schedule and limited site conditions, the construction period of the punched cast-in-situ pile (end-bearing pile) foundation is complicated and the construction period is long. In the case of a tight construction schedule, it is difficult to carry out foundation excavation after all the perforated piles in the project have been constructed and tested; usually a part of the completed pile foundation is excavated in advance during the construct...

AI Technical Summary

Problems solved by technology

[0002] With the development of social economy, the requirements for production efficiency are getting higher and higher. In the construction industry, most of them are large-scale engineering construction. When it comes to large-scale construction of engineering piles, the mode of segmented construction is often adopted. In In the case of tight construction schedule and limited site conditions, the construction process of the foundation of punched cast-in-place piles (end-bearing piles) is complicated and the construction period is long

In the case of a tight construction schedule, it is difficult to carry out foundation excavation after all the perforated piles in the project have been constructed and tested; usually a part of the completed pile foundation is excavated in advance during the construction of perforated piles, but in During this process, the excavation of the deep foundation pit and its technical requirements will cause the pile top elevation of the punched pile to reach the bottom of the deep foundation pit, and then wait until the deep foundation pit is backfilled for secondary pile connection.

Because the construction of perforated piles is complicated and has a long construction period, and the backfilled soil layer is difficult to guarantee the forming quality of perforated piles, and the construction personnel need to carry out construction at a depth of 4-6 meters underground, and the operating space is narrow, It is difficult, and at the same time, it is difficult to guarantee the quality pass rate of punched cast-in-situ piles and the operation safety of construction personnel

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