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Construction method of section-steel triaxial soil-cement mixing pile

A technology of cement-soil mixing piles and construction methods, which is applied to sheet pile walls, foundation structure engineering, construction, etc., can solve the problems of long re-stirring process time and difficulty in pre-stirring sinking, and achieve the solution of pre-stirring sinking difficulties, Solve the effect of too long process time

Inactive Publication Date: 2010-07-07
中铁城建集团第三工程有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a construction method of steel triaxial cement-soil mixing pile, which not only solves the problem of pre-stirring sinking difficulty, but also solves the problem of too long re-stirring process time

Method used

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  • Construction method of section-steel triaxial soil-cement mixing pile
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  • Construction method of section-steel triaxial soil-cement mixing pile

Examples

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Effect test

Embodiment 1

[0032] The steel-cement-soil mixing pile of the present invention uses a three-axis long helical drilling machine to drill holes in the soil, cut the soil body, spray air and spray cement slurry when drilling, and spray cement slurry when lifting the drill to fully mix with the foundation repeatedly. Each construction unit adopts overlapping and overlapping construction, and the section steel is inserted into the mixing pile before the cement soil is hardened; thus forming a composite pile body that not only stops water but also functions as an enclosure structure.

[0033] Generally, ZKD85-3 multi-axis drilling machine is mainly used in construction.

[0034] The technology of construction method of the present invention is as flow process figure 1 As shown, according to the measurement and setting-out results, dig a guide ditch at the position of the triaxial mixing pile to be constructed. The width of the guide ditch is the pile diameter plus 400mm. At the same time, underg...

Embodiment 2

[0055] The steel-cement-soil mixing pile of the present invention uses a three-axis long helical drilling machine to drill holes in the soil, cut the soil body, spray air and spray cement slurry when drilling, and spray cement slurry when lifting the drill to fully mix with the foundation repeatedly. Each construction unit adopts overlapping and overlapping construction, and the section steel is inserted into the mixing pile before the cement soil is hardened; thus forming a composite pile body that not only stops water but also functions as an enclosure structure.

[0056] Generally, ZKD85-3 multi-axis drilling machine is mainly used in construction.

[0057] The technology of construction method of the present invention is as flow process figure 1 As shown, according to the measurement and setting-out results, dig a guide ditch at the position of the triaxial mixing pile to be constructed. The width of the guide ditch is the pile diameter plus 400mm. At the same time, underg...

Embodiment 3

[0076] The steel-cement-soil mixing pile of the present invention uses a three-axis long helical drilling machine to drill holes in the soil, cut the soil body, spray air and spray cement slurry when drilling, and spray cement slurry when lifting the drill to fully mix with the foundation repeatedly. Each construction unit adopts overlapping and overlapping construction, and the section steel is inserted into the mixing pile before the cement soil is hardened; thus forming a composite pile body that not only stops water but also functions as an enclosure structure.

[0077] Generally, ZKD85-3 multi-axis drilling machine is mainly used in construction.

[0078] The technology of construction method of the present invention is as flow process figure 1 As shown, according to the measurement and setting-out results, dig a guide ditch at the position of the triaxial mixing pile to be constructed. The width of the guide ditch is the pile diameter plus 400mm. At the same time, underg...

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Abstract

The invention discloses a construction method of a section-steel triaxial soil-cement mixing pile, comprising the following construction steps: (1) measuring paying-off positioning pile; (2) digging trench; (3) arranging guide positioning section-steel; (4) the mixer taking place, correcting and reviewing levelness and verticality of the pile driver; (5) mixing cement grout, starting an air compressor, and sending the grout to the pile driver; (6) a drill bit spraying grout, gas, cutting soil body and sinking to the elevation of designed pile bottom; (7) the drill bit spraying the grout and elevating to the elevation of designed pile top; (8) vertically lifting the section-steel and positioning the section-steel; (9) correcting and reviewing the verticality of the section-steel; (10) inserting and fixing the section-steel. The pilling process provided by the invention is suitable for cohesive soil with large compression modulus, soft ground layer which is mainly composed of cohesive soil and silty cohesive soil, mucky soil, plain fill and saturation loose sand without flowing underground water; especially for the cohesive soil with large compression modulus, the invention not only can solve the problem that the pre-mixing sinking is difficult, but also can solve the problem that the time of repeatedly-mixing process is too long.

Description

technical field [0001] The invention relates to a construction method of a three-axis cement-soil mixing pile, in particular to a construction method for inserting a section steel into a three-axis cement-soil mixing pile to form a section steel three-axis cement-soil mixing pile. Background technique [0002] The current cement-soil mixing piles are divided into single-axis cement-soil mixing piles, double-axis cement-soil mixing piles, and three-axis cement-soil mixing piles according to the number of rotating rods, and the best effect should be three-axis cement-soil mixing piles. It not only cuts the soil with great power, and the soil is evenly stirred, but also has the characteristics of water stop, soil retaining and good pile quality. The construction method of axial cement-soil mixing pile is widely applicable to general foundation reinforcement in civil engineering, soft soil foundation reinforcement, gravity retaining wall, and can be used as foundation pit mainte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D5/46
Inventor 贾继光
Owner 中铁城建集团第三工程有限公司
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