Mechanical hole forming construction method of rectangular slide-resistant pile

Abstract

The invention discloses a mechanical hole forming construction method of a rectangular slide-resistant pile, and belongs to the technical field of side slope retaining structure construction. The method comprises the following steps of: step A. carrying out setting-out location on a rectangular pile hole; step B. manufacturing a rectangular steel pile casing; step C. digging a hole by using a spun-digging pile machine; step D. lowering the rectangular steel pile casing into the rectangular pile hole by using a mechanical arm, and removing excess earthwork from the side wall; step E. pouring concrete in the over-excavation area outside the steel casing; step F. raising the steel casing by using the mechanical arm; and step G. lowering a rectangular steel reinforcement cage, and pouring theconcrete to form the slide-resistant pile. The construction method solves the problems that the efficiency of causing a manual hole digging pile to break into rock is low, the blasting excavation is not allowed in complicated environments, and the hole forming construction is extremely difficult; and the construction method only needs conventional rotary excavating mechanical equipment, does not increase the construction cost and has the advantages of fast hole formation speed, high construction efficiency, simple operation, low safety risk and the like.

Description

technical field [0001] The invention relates to a construction method for forming holes for anti-slide piles, in particular to a construction method for mechanically forming holes for rectangular anti-slide piles, and belongs to the technical field of construction of slope retaining structures. Background technique [0002] The manual excavation pile construction has simple operation process, convenient construction, high single pile bearing capacity, and easy construction quality assurance. However, the underground operation conditions of the excavated piles are poor, the environment is harsh, the labor intensity is high, the single pile construction speed is slow, and the safety hazards in the construction are also very prominent. Underground operations must be adopted. The personal safety problem is extremely serious, and there are many unsafe factors and hidden dangers. , construction safety management is more difficult; and the excavation process of the pile well weaken...

AI Technical Summary

Problems solved by technology

However, the underground operation conditions of the excavated piles are poor, the environment is harsh, the labor intensity is high, the construction speed of the single pile is slow, and the safety hazards in the construction are also very prominent. Underground operations must be adopted. The personal safety problem is extremely serious, and there are many unsafe factors and hidden dangers. , construction safety management is more difficult; and the excavation process of the pile well weakens the resistance of the landslide body itself, especially when digging into the hard and stable stratum below the slide bed, blasting is usually required, which disturbs the stratum greatly; especially for those who are For landslides in the deformation development stage, blasting will exacerbate its instability and construction risks, and it is difficult to guarantee the safety of construction personnel and surrounding structures.

[0003] Mechanical bored piles have high construction efficiency, fewer operators, less risk, and are less affected by the weather. However, there are still some technical problems in the construction of square piles. For example, most of the rotary piles on the market now use round piles. In addition, the square anti-slide piles on the market have problems such as immature mechanical pile forming technology, poor applicability, or high construction costs.

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