Bougainvillea spectabilis willd-shaped cement-soil mixing pile and shaping method thereof

Abstract

The invention relates to a high-strength triangular plum-blossom-shaped cement soil mixing bearing pile and a forming method thereof. The high-strength triangular plum-blossom-shaped cement soil mixing bearing pile is good in perpendicularity, incline resisting capability and full in full-load bearing capacity. The cement soil mixing pile comprises a cement soil mixing pile, two end faces and a cement soil mixing pile body are formed by connection of three plum-blossom-shaped petals, and one or more concrete cement piles are positioned in a high-strength triangular plum-blossom-shaped cement soil mixing bearing pile body. The high-strength triangular plum-blossom-shaped cement soil mixing bearing pile has the advantages that a pile foundation of the triangularly distributed plum-blossom-shaped cement soil mixing pile is large in bearing capacity, bearing and supporting points are triangularly distributed, and the pile foundation is good in stability; when the pile foundation formed by the triangular plum-blossom-shaped petals is positioned in a soft soil foundation, the three plum-blossom-shaped petals identical in inclined angles act on a wall of the soft soil foundation like three projected ejection posts, so that the cement soil pile is ensured not to incline but perpendicularly stand in the soft soil foundation; due to the fact that a three-axis drilling rod sinks along a guiding frame, stirs and sprays cement paste at the same time, and the sinking direction and the stirring direction are opposite, so that the cement paste and soil can be fully mixed integrally, and high strength of the cement soil pile is ensured.

Description

technical field [0001] The invention belongs to the technical field of construction, and relates to a cement-soil mixing pile and a forming method thereof, in particular to a quincunx-shaped cement-soil mixing pile and a forming method thereof. Background technique [0002] The cement-soil mixing pile is a method for reinforcing the low foundation of saturated soft clay. It uses cement as the curing agent, and through a special mixing machine, the soft soil and the curing agent are forced to mix deep in the foundation. A series of physical and chemical reactions between them make the soft soil harden into a high-quality foundation with integrity, water stability and certain strength. But the existing cement-soil mixing piles are all single-column piles. When higher pullout resistance and pressure resistance are required, the borehole diameter of the borehole needs to be enlarged so as to make a borehole pillar with a larger borehole diameter. [0003] The manufacturing proc...

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Problems solved by technology

However, as stated in the plan, the six cement-soil mixing piles are on the same vertical plane, so the mixing piles are distributed in a straight line to form a planar cement-soil mixing pile. The pull-out resistance and strength of the cement-soil mixing pile need to be further improved

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