Polygonal cement-soil stirring pile and formation method thereof
A technology of cement-soil mixing piles and cement, which is applied in the direction of sheet pile walls, buildings, and foundation structure engineering, can solve the problems of pullout resistance and strength that need to be further improved, achieve convenient construction, increase contact area, and improve pullout resistance and the effect of bearing capacity
Inactive Publication Date: 2015-08-26
周兆弟
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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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[0038] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.
[0039] Such as figure 1 As shown, a polygonal cement-soil mixing pile includes a pile body 10 formed by solidification of cement and soil, and the pile body 10 is composed of several pile bodies 20 that fit together, and the pile body 10 The cross section has a plurality of arc-shaped angles 11, and the number of the pile body 20 is not less than the number of angles 11, that is to say, when the pile body 20 is located inside the pile body 10, the pile body 20 does not present the angle 11 , the axis lines of several pile bodies 20 are not on the same plane and are parallel to each other.
[0040] The cross-section of each independent pile body 20 is circular, and the radius of pile body 20 can be equal or not equal, and each pile body 20 that forms pile body 10 has overlapping portion with at least other two pile bodies 20 respectiv...
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The invention relates to a quincunx cement soil mixing high-strength bearing pile and a forming method. The quincunx cement soil mixing high-strength bearing pile is good in perpendicularity and inclination-resisting capability and has the full-load bearing capacity. The quincunx cement soil mixing high-strength bearing pile comprises a cement soil mixing pile. The two end faces and the pile body of the cement soil mixing pile are formed by connecting a plurality of quincunx petals together. One or more concrete cement piles are arranged in the pile body of the quincunx cement soil mixing high-strength bearing pile. The quincunx cement soil mixing high-strength bearing pile has the advantages that firstly, due to the fact that the bearing area of a pile foundation of the multiangular-distribution quincunx cement soil pile is large, and bearing supporting points are distributed in a quincunx mode, the stability of the pile foundation is good; secondly, when the pile body composed of the multiangular quincunx petals is in a soft soil foundation, the pile body which is composed of the quincunx petals with equal included angles acts on the wall of the soft soil foundation like a three-column protruding jack column, and it can be ensured that the cement soil pile does not incline and is perpendicularly erected in the soft soil foundation; thirdly, due to the fact that a drill bit of a multi-axis drill pipe sinks while stirring and guniting along a guide frame, and the direction of sinking is opposite to the direction of stirring, cement paste and soil can be fully and evenly integrated, and it can be ensured that the strength of the pile body of the formed cement soil pile is high.
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 polygonal 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 process of...
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IPC IPC(8): E02D5/46E02D5/48E02D5/50
CPCE02D5/46E02D5/48E02D5/50
Inventor 周兆弟
Owner 周兆弟