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Grouted screw pile ,construction method therefor and grouting arrangement employing same

A construction method and technology of grouting device, applied in sheet pile walls, foundation structure engineering, construction, etc., can solve problems such as limitation of drilling resistance, extension of construction period, straight line section, waste of materials, etc., to improve operating efficiency, Drilling resistance is small, the effect of reducing the failure rate

Inactive Publication Date: 2006-09-27
曹兴明
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a construction method for grouting threaded piles, the method Formed threaded piles and special equipment

Method used

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  • Grouted screw pile ,construction method therefor and grouting arrangement employing same
  • Grouted screw pile ,construction method therefor and grouting arrangement employing same
  • Grouted screw pile ,construction method therefor and grouting arrangement employing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] The grouting threaded pile comprises: a concrete pile body 7, the concrete pile body contains a reinforcement member 8, and the outer surface of the concrete pile body has a spiral protrusion 9.

Embodiment 2

[0036] Grouting device 1, described grouting device 1 has drill pipe 2, and described drill pipe 2 has thread 3 outside, and described thread 3 has hollow grouting channel 4, and described hollow grouting channel 4 reaches As for the drill bit, the drill pipe 2 has a concrete pipeline 6 inside, and the end of the concrete pipeline has a grouting port 5 .

Embodiment 3

[0038] In the above-mentioned grouting screw pile construction method, prefabricated cement slurry, concrete, and steel cage should be prepared before grouting and drilling, the drilling rig is spud drilling, the grouting device is pressurized according to the design speed, and the drill bit is drilled into the soil while passing through the grouting pile. The cement slurry is injected from the slurry channel to the grouting port, and the concrete is also injected along the outer wall of the thread. When the drill reaches the design depth, stop injecting the cement slurry, and then reverse the grouting device at the same speed, lift it to the design pile top, and finally Place the reinforcement cage, and the thread trajectory should be consistent when drilling and lifting.

[0039] Example 3:

[0040] The above-mentioned grouting threaded pile construction method, when the grouting threaded pile is used for the foundation, the prefabricated cement slurry and concrete should be...

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Abstract

The invention relates to a pulp screw post, construction method and relative pulp device. Said invention comprises: concrete post which comprises: a steel bar strengthen element. The outer surface of concrete post has screw projectors. The construction method comprises: preparing cement, concrete, steel bar cage, and starting the drilling machine; pressurizing the pulp device at preset speed; then filling cement when the driller is into the soil and filling concrete via concrete pipeline; and stopping filling cement when reaching preset depth; reversely extracting out the pulp device in same speed; at last mounting the steel bar cage. The invention can be used at the strengthen post.

Description

Technical field: [0001] The invention relates to a cast-in-place concrete pouring pile for buildings, bridges and various foundations, a construction method for the pile and special equipment. Background technique: [0002] Currently there is a construction method for cast-in-situ piles in building foundations, application number: 96119602.5, authorized publication number: CN1059008C. This process considers that the threaded drill rod extrusion resistance is too large, it is difficult to achieve the purpose of one drilling, so three steps that must be done are mentioned in claim 1, wherein the first step is made by hole-forming machinery Pre-forming holes, the second step extrusion drilling and other procedures. The disadvantage of this method is that it adds a construction link, prolongs the construction period and cost, and the wall is easy to collapse when the pre-formed hole is squeezed and drilled, which also increases the quality of the hole wall. The second kind is,...

Claims

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Application Information

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IPC IPC(8): E02D5/36E02D5/56E02D15/04
Inventor 曹兴明
Owner 曹兴明
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