A Mechanical Hole Forming Method for Rectangular Anti-slide Pile with Reduced Filling Coefficient

Abstract

The invention discloses a mechanical hole-forming construction method for a rectangular anti-slide pile with reduced filling coefficient, comprising: A. laying out and positioning the rectangular pile hole; B. making a rectangular steel casing; C. digging the hole with a rotary excavator; D. Lower the full-length casing into the rectangular pile hole; E. Excavate the slag and repair the hole; F. Lower the rectangular reinforcement cage and pour concrete to form an anti-slide pile; G. Put forward the steel casing. The method of the invention can not only reduce the concrete filling coefficient of the anti-sliding pile, reduce the amount of concrete used, and achieve cost-saving economic benefits, but also improve the construction speed and safety factor, and ensure the construction safety and quality of the anti-sliding pile.

Description

technical field [0001] The invention relates to a hole-forming construction method of an anti-slide pile, in particular to a construction method for changing a rectangular anti-slide pile with a reduced filling coefficient to a mechanical hole-forming method, and belongs to the technical field of slope support structure construction. 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 ex...

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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