Triaxial triangular cement mixing drill stem and construction method

A technology of mixing drill pipes and triangles, applied in drilling equipment and methods, drill pipes, drill pipes, etc., can solve the problems of poor anti-tilting ability, endangering life safety, and building toppling, etc., to improve the bearing capacity, increase the The effect of large contact area and enhanced stability

Active Publication Date: 2014-06-25
浙江兆弟技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The construction method includes the following steps: (1) stake out, release the actual sample according to the construction drawing; (2) open the groove, open the groove according to the drawing requirements; (3) put the device in place, move the five-axis cement-soil mixing pile device to The position to be constructed; (4) Start the background cement slurry mixing system, and then send the cement slurry to the slurry storage tank; (5) Turn on the integrated computer and let the computer control the preset data: the descending speed per meter, the amount of grout sprayed per meter , pile end design elevation, total spraying amount and total mixing time; (6) Turn on the power head to drive the multi-functional drill bit to spray cement while stirring, sink to the design pile bottom elevation when turning forward, and lift the d

Method used

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  • Triaxial triangular cement mixing drill stem and construction method
  • Triaxial triangular cement mixing drill stem and construction method
  • Triaxial triangular cement mixing drill stem and construction method

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0012] Example 1: Refer to the attached Figure 1 to Figure 4 . A three-axis triangular cement mixing drill pipe includes a three-axis drill pipe 1. Each drill pipe 2 of the three-axis drill pipe 1 is welded with stirring teeth 4; the three-axis drill pipe 1 is distributed in a triangle shape, The heads of the three drill rods in the drill rod 1 are respectively connected to the power output end 6 (such as the three ends of the gear transmission box 3). The included angles between the three-axis drill rods 1 are equal or unequal. (Gear box 3) The power input end is one end or two ends or three ends. When the (gear box) power input end is one end, this end is connected to the power output end of the power mechanism. Each drill shaft in the three-axis drill rod is composed of one or more drill shafts, and the drill shaft and the drill shaft are connected by a drill shaft connector 7. One or more three-axis spacing positioners 8 are used for positioning between the three-axis ...

Example Embodiment

[0013] Embodiment 2: On the basis of Embodiment 1, when the power input end (gear transmission box) has two ends, the two ends are respectively connected to the power output ends of their respective power mechanisms. (Gear box) When the power input end is two ends and the power output is three ends, one end of the power output end is directly driven by a power mechanism through a gear reduction mechanism, and the other two ends of the power output end are driven by another drive mechanism through gears. The machine drives the rotation.

Example Embodiment

[0014] Embodiment 3: On the basis of Embodiment 1, when the power input end (gear transmission box) has three ends, the three ends are respectively connected to the power output ends of their respective power mechanisms.

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Abstract

The invention relates to a triaxial triangular cement mixing drill stem and a construction method. The triaxial triangular cement mixing drill stem is used for forming of triangular pile foundations of cement mixing piles. The triaxial drill stem is in triangular distribution, and heads of three drill stem bodies of the triaxial drill stem are connected with a power output end respectively. The triaxial triangular cement mixing drill stem has the advantages that drilling holes of the triaxial drill stem in triangular distribution form three triangular quincuncial pile holes in mutual communication and a triangular quincuncial pile, and corner support is formed between a three-petal-shaped pile foundation and a three-petal-shaped pile body of the three-petal-shaped columnar triangular quincuncial pile, so that stability of the pile foundation is improved while contact area of a soil layer and the three-petal-shaped triangular pile body is greatly widened, bearing capability of the cement mixing pile is improved while stability of the pile body is enhanced; simultaneous drilling of the three drill stem bodies of the triaxial drill stem is realized while combined alternative drilling, sequentially alternative drilling or staggered drilling of the three drill stem bodies of the triaxial drill stem according to geological conditions is realized, and rock penetration or rock bursting is achieved.

Description

technical field [0001] The invention relates to a triaxial triangular cement mixing drill pipe used for forming a cement mixing pile triangular pile foundation and a construction method, belonging to the field of cement mixing pile drill pipe manufacturing. Background technique [0002] CN102535450A, name "a five-axis cement-soil mixing pile device and construction method", the device includes a main engine, a hoist, a guide rod, a steel wire rope, a slurry inlet, a power head, a gearbox, a reducer, a drill pipe, an intermediate support frame, Lower support frame, winged drill pipe, hoop, spray port, background cement slurry mixing system, the hoist and guide rod are fixed on the main engine, the power head is connected to the pulley at the top of the guide rod through a wire rope, and the wire rope drives the power The head is lifted up and down, and the power head is connected to five drill pipes through the gearbox and reducer in turn. The middle part of the five drill pi...

Claims

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Application Information

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IPC IPC(8): E21B17/00E21B3/00E21B44/00E02D5/46
Inventor 周兆弟
Owner 浙江兆弟技术有限公司
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