CN219045392U

CN219045392U - Drill rod drilling machine for preventing soil compaction pile Kong Sujing

Info

Publication number: CN219045392U
Application number: CN202222521635.9U
Authority: CN
Inventors: 万浩然; 马玲; 梁倩文; 金鑫; 柳富军
Original assignee: Ningxia Hangzhong Geotechnical Engineering Co ltd
Current assignee: Ningxia Hangzhong Geotechnical Engineering Co ltd
Priority date: 2022-09-23
Filing date: 2022-09-23
Publication date: 2023-05-19
Anticipated expiration: 2032-09-23

Abstract

The utility model provides a drill rod drilling machine for preventing soil compaction piles Kong Sujing, which comprises a screw rod at the top, a polish rod drilling rod at the lower part, a compaction-expansion body and a drill bit, wherein the compaction-expansion body at the lower part is used for soil compaction and pore-forming, the screw rod is arranged from the layer bottom of soft and plastic-flowing cohesive soil layer to the top of the drilling rod, the outer diameter of the screw rod is 10mm smaller than the outer diameter of the compaction-expansion body, local small amount of soil taking is completed, the rest parts are connected by the polish rod drilling rod, and the shrinkage of the pile body in the soft and plastic-flowing cohesive soil layer can be effectively avoided when the soil compaction and pore-forming are carried out during drilling and filling into piles.

Description

Drill rod drilling machine for preventing soil compaction pile Kong Sujing

Technical Field

The utility model relates to the technical field of drilling devices, in particular to a drill rod and a drilling machine for preventing soil compaction of a pile Kong Sujing.

Background

The soil squeezing pile adopts a squeezing and expanding drill bit, and the soil in a pile hole is completely squeezed into the soil around the pile hole by the squeezing and expanding action of mechanical torque and vertical pressure in the pile forming process, so that the cylindrical complete soil squeezing pile is formed after concrete is pressed and poured.

Firstly, due to the difference of water content, the cohesive soil is divided into six soil body states of flowing plastic, soft plastic, hard plastic and hard according to the difference of liquid indexes, wherein the flowing plastic viscosity is between the solid and the fluid, the cohesive soil can deform under the gravity, and the soft plastic cohesive soil is easy to deform under the stress. Secondly, in the pile forming process of the soil extrusion pile, the soil body in the pile hole is extruded to the soil body around the pile so as to generate a certain force on the soil body around the pile, and the soil extrusion effect in the pile forming process is negative in soft and plastic-flowing cohesive soil, so that the pile body is broken or reduced in diameter and the like. Based on the two points, the construction of the soil squeezing pile in soft and plastic-flowing cohesive soil is easier to generate the problem of diameter shrinkage. In order to solve the problem that the soil squeezing pile can generate in soft plastic viscous soil, the utility model provides a drill rod and a drilling machine for preventing the soil squeezing pile Kong Sujing.

Disclosure of Invention

The utility model aims to solve the technical problems and provides a drill rod drilling machine for preventing soil compaction piles Kong Sujing. This prevent crowded soil stake Kong Sujing's drilling rod rig includes: the pile drilling machine is fixed on a drilling tool on the pile drilling machine, and a power head which is arranged at the upper part of the drilling tool and is used for providing power for the drilling tool.

The piling drilling machine comprises a crawler chassis, an operation room and an upright post; a pile machine platform is arranged on the crawler chassis, one end of the pile machine platform is provided with a stand column, and the other end of the pile machine platform is provided with an operation room; the top of the upright post is provided with a pulley block, a steel wire rope coming out of a roller of the winch bypasses one end of the pulley block and is connected with a power head, and the lower part of the power head is connected with a drilling tool.

Wherein, the drilling tool comprises a hollow drill rod, an extrusion expansion body and a drill bit; the lower part of the hollow drill rod is a polished rod drill rod, the upper part of the hollow drill rod is a screw rod welded with a screw drill blade rotating downwards and clockwise, the lower part of the hollow drill rod is connected with an extrusion expansion body, and the lower part of the extrusion expansion body is connected with a drill bit; the extruding and expanding body is cylindrical, and the outer diameter size is the diameter of the pile. In the construction process in the soil body containing soft and flowing plastic viscous soil layers, the lower part is extruded and expanded to extrude soil to form holes, the part of the screw rod at the top of the drill rod is used for taking out a small amount of soil, the rest part is connected by adopting a polished rod drill rod, and the shrinkage of the pile body in the soft and flowing plastic viscous soil layers can be effectively avoided when the soil body is drilled and extruded, lifted and poured into the pile. And when the drill is lifted, the concrete pipeline reaches the drill bit through the hollow drill rod and is sprayed out of the drill bit, so that the pile is poured.

In practical implementation, for smooth tripping, the outer diameter of the screw rod is 10mm smaller than that of the extrusion expansion body; the control of the outer diameter can effectively avoid the situation that the diameter of a local pile is too small or broken due to the shrinkage of the pile hole, and can also avoid the situation that soil is taken out of the whole pile hole due to the too large diameter of the screw rod.

The installation length of the screw rod is generally the distance from the layer bottom of soft plastic cohesive soil to the top of the drill rod in a geotechnical engineering investigation report, so that convenience is brought to construction, and the layer bottom elevation of the soil layer is preferably obtained by taking the average layer bottom elevation of the soil layer according to the condition of each single building; the installation position is from the position of the soil layer bottom elevation corresponding to the drill rod to the top of the drill rod after the pile is formed, and the installation position of the screw rod can be adjusted according to specific conditions. The distance between the bottom of the soft and plastic cohesive soil layer and the pile top is preferably between 2 and 5m, and the depth is not excessively large.

The utility model has the technical effects that: the drill rod of the drilling tool with the structure can avoid the situation that the pile body breaks or the diameter is reduced in the construction process of soft and plastic viscous soil.

Drawings

FIG. 1 is a schematic view of the drill rod rig of the present utility model;

in the figure, a crawler chassis 1, an operating room 2, a column 3, a power head 4, a drilling tool 5, a pile driver platform 6, a pulley block 7, a steel wire rope 8, a hollow drill rod 51, a polished rod drill rod 511, a screw rod 512, a squeezing and expanding body 52 and a drill bit 53.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The present embodiment provides a drill rod drilling machine for preventing soil compaction of piles Kong Sujing, which comprises a piling drilling machine, a drilling tool 4 fixed on the piling drilling machine, and a power head 5 arranged at the upper part of the drilling tool for providing power for the drilling tool, as shown in fig. 1.

The piling drilling machine comprises a crawler chassis 1, an operation room 2 and a stand column 3; a pile machine platform 6 is arranged on the crawler chassis 1, one end of the pile machine platform 6 is provided with a stand column 3, and the other end is provided with an operation room 2; the top of the upright post 3 is provided with a pulley block 7, a steel wire rope 8 coming out of a roller of the winch bypasses one end of the pulley block and is connected with a power head 4, and the lower part of the power head is connected with a drilling tool 5.

Wherein, the drilling tool 5 comprises a hollow drill rod 51, an extrusion expansion body 52 and a drill bit 53; the lower part of the hollow drill rod 51 is a polished rod drill rod 511, the upper part is a screw rod 512 welded with screw drill leaves on the drill rod, the lower part of the hollow drill rod 51 is connected with an extrusion expansion body 52, and the lower part of the extrusion expansion body 52 is connected with a drill bit 53; the expansion body 52 is cylindrical, and the outer diameter is the diameter of the pile.

Working principle: in the working process of the drilling machine, the drilling tool is lowered, the drilling tool rotates to form a hole at a designated position, after the hole is drilled, concrete is poured while the drilling tool is lifted, and the shrinkage of the pile body in soft and flowing plastic viscous soil layers can be effectively avoided in the pouring process due to the existence of the extrusion expansion body.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced with equivalents; such modifications and substitutions do not depart from the spirit of the technical solutions according to the embodiments of the present utility model.

Claims

1. A drill pipe rig for preventing soil compaction of piles Kong Sujing, comprising: a piling drilling machine, a drilling tool fixed on the piling drilling machine, a power head (4) arranged at the upper part of the drilling tool and used for providing power for the drilling tool,

the drilling tool is characterized by comprising a hollow drill rod (51), an extrusion expansion body (52) and a drill bit (53); the lower part of the hollow drill rod (51) is a polished rod drill rod (511), the upper part is a screw rod (512), the lower part of the hollow drill rod (51) is connected with an extrusion expansion body (52), and the lower part of the extrusion expansion body (52) is connected with a drill bit (53).

2. A drill rod assembly for preventing soil compaction piles Kong Sujing according to claim 1, wherein the expansion body (52) has a cylindrical shape and an outer diameter which is the diameter of the pile.

3. A drill rod assembly for preventing soil compaction piles Kong Sujing according to claim 1, wherein the screw rod (512) has an outer diameter which is at least 10mm smaller than the outer diameter of the swaged body (52).

4. A drill rod drilling machine for preventing compaction piles Kong Sujing according to claim 1, wherein the length of the screw rod (512) is the length of the distance from the bottom of the layer of soft, fluid plastic-like cohesive soil to the top of the drill rod in geotechnical survey reports.

5. A drill rod rig for preventing soil compaction piles Kong Sujing according to claim 1, comprising a crawler chassis (1), an operating room (2), a column (3); be equipped with stake machine platform (6) on caterpillar base (1), stake machine platform (6) one end above is equipped with stand (3), and the other end is equipped with control room (2), the top of stand (3) is equipped with assembly pulley (7), and assembly pulley (7) one end connection unit head (4) are walked around to wire rope (8) that come out from the roller of hoist engine, drilling tool (5) are connected to unit head (4) lower part.

6. A drill rod drilling machine for preventing soil compaction piles Kong Sujing according to claim 1 wherein the screw rod (512) is a hollow drill rod (51) provided with a drill rod comprising screw blades.

7. A drill rod assembly for preventing soil compaction piles Kong Sujing according to claim 6 wherein the twist drill leaves are rotated in a downward and clockwise direction.