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A pile spraying machine and a construction method for spraying piles at the base of the pavement

A construction method and pavement base technology, which is applied in the direction of foundation structure engineering, sheet pile walls, buildings, etc., can solve the problems of large amount of wear and easy breakage, and achieve the effects of reducing wear, cleaning the construction environment, and avoiding dust on the road surface

Active Publication Date: 2020-04-03
昆山市交通工程集团有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as can be seen in the above-mentioned patents, the fins on the drill bit are slender, not only wear a lot during the drilling process, but are also easy to break, and need to be improved

Method used

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  • A pile spraying machine and a construction method for spraying piles at the base of the pavement
  • A pile spraying machine and a construction method for spraying piles at the base of the pavement
  • A pile spraying machine and a construction method for spraying piles at the base of the pavement

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Embodiment 1: A pile spraying machine includes a drilling machine 1 and a drilling rod 2 . The drilling rig 1 includes a vehicle body 3 at the lower end, and a bracket 4 is arranged above. The support 4 is vertically provided with a feeding hydraulic device, and the feeding hydraulic device is the first hydraulic cylinder 5 . A rotary power device 6 is fixedly connected to the first hydraulic cylinder 5 , and the rotary power device 6 includes a connecting frame 7 , a motor 8 and a limit stand 9 that is drivingly connected to the motor 8 . The limit table 9 is arranged in a ring shape, and a gear is arranged on the edge of the limit table 9 to be connected with the output gear on the transmission shaft of the motor 8 in a driving manner. The connecting frame 7 is fixed on the motor 8 and is fixedly connected with the first hydraulic cylinder 5 at the same time. The connecting frame 7 is also provided with a linkage portion 10 that interferes with the upper and lower e...

Embodiment 2

[0042] Embodiment 2: a construction method for spraying piles for pavement base, comprising the following steps:

[0043] a. The roadbed is leveled, and all obstacles are clearly surfaced;

[0044]b. Fix the drilling rig 1, adjust the fixed angle of the drilling rod 2 to ensure that the drilling rod 2 is in a vertical state, inject the mixed concrete into the drilling rod 2, and at the same time wrap the annular ring around the lower part of the drilling rod 2;

[0045] c. Start the drilling rig 1, turn on the rotary power device 6, screw the limit stand 9 into the top of the drill pipe 2, and continue to drive the drill rod 2 to rotate by the rotary power device 6, and then start the feeding hydraulic device to assist the drill rod 2 to drill down , keep the drilling speed v=0.2~0.3m / min, and the drilling depth generally does not exceed 0.5m;

[0046] d. Spray the pile. After the drill pipe 2 reaches the specified depth, stop rotating the power device 6, open the ring, start...

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Abstract

Provided are a spraying piling machine and a method for pavement base spraying piling construction. The spraying piling machine comprises a drill rod, a drilling machine for controlling the drill rod to drill the ground, a feeding channel arranged at the middle of the drill rod and a hopper for feeding concrete into the feeding channel. The outer side of the drill rod is provided with continuous and spiral ribs, the feeding channel extends to the top of the drill rod, the drilling machine is provided with a hydraulic extrusion rod for squeezing the concrete downwards, and the drilling machine is provided with a lifting device for lifting the drill rod. The method for pavement base spraying piling construction comprises a step a of roadbed leveling, a step b of drilling machine fixation, a step c of drilling machine starting and a step d of spraying piling. The invention aims to provide the method for pavement base spraying piling construction which is simple to operate, short in used time and low in cost. The construction scheme further has the advantages that less dust is raised and the construction process is more environmentally friendly.

Description

technical field [0001] The invention relates to the field of pavement laying, in particular to a construction method of spray piles for pavement base layers. Background technique [0002] With the development of traffic and municipal road construction, the requirements for pavement strength and reliability are constantly increasing. Therefore, a construction scheme to enhance the pavement strength on soft foundations is required. [0003] The Chinese utility model patent with the filing date of 2008.03.13 and the publication number of CN201173091 discloses a two-way stirring powder sprayer drill bit, which is provided with an outer drill bit connected with the outer drill pipe and an inner drill bit connected with the inner drill pipe, The outer drill bit is provided with a casing connected with the outer drill pipe, a stirring blade is fixed on the outer wall of the casing, and a bearing and a sealing device matched with the inner drill pipe are arranged on the inner wall o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D5/46
CPCE02D5/46
Inventor 冯春虎马涛
Owner 昆山市交通工程集团有限公司