Hole cleaning device for anchor pile of steel pipe pile of steel trestle

Abstract

The utility model provides a steel trestle steel pipe pile anchor pile hole cleaning device which comprises a deslagging vertical pipe, a connecting pipe and a water inlet pipe which are arranged in an anchor pile pipe, the water inlet pipe is connected with a water source, a lower end opening of the deslagging vertical pipe is inserted into a sand layer in the anchor pile pipe, and an annular cover is arranged on the portion, stretching into the sand layer, of the deslagging vertical pipe. A closed annular cavity is formed between the annular cover and the side wall of the vertical deslagging pipe, the connecting pipe is externally connected to the annular cover and communicated with the annular cavity, the connecting pipe is connected with the air source mechanism, and a plurality of air inlet holes communicated with the annular cavity are formed in the positions, corresponding to the annular cavity, of the pipe wall of the vertical deslagging pipe. According to the utility model, due to the arrangement of the annular cavity and the plurality of air inlets, sand can be blown to a sand layer at the lower end opening of the deslagging vertical pipe from multiple angles and directions, the sand layer entering the lower end opening of the deslagging vertical pipe can be loosened conveniently, and then the sand layer can be blown up conveniently and mixed with water above the sand layer in the anchor pile pipe to form a mixture, so that sand can be discharged conveniently; and the hole cleaning efficiency and safety of the anchor pile pipe are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of steel pipe pile construction, in particular to a hole cleaning device for steel pipe pile anchor piles of a steel trestle. Background Art

[0002] Under the geological conditions of shallow overburden hard rock, the steel pipe column construction of the steel trestle requires anchor pile construction, and mud wall drilling is conventionally used. Mud making increases the input of materials and is prone to environmental pollution. Therefore, mudless drilling is used to form holes. The slag removal during the drilling process and the hole cleaning after the hole is directly related to the subsequent construction of steel pipe piles.

[0003] At present, the automatic hole cleaning device for steel pipe pile anchor piles is Figure 1 As shown, it comprises a slag discharge riser 5 whose lower end is inserted into the coating 12 inside the anchor pile pipe 1, and a connecting pipe 8 connected to the lower end of the slag discharge riser 5, the connecting pipe 8 is connected to the gas source mechanism, and an air inlet is arranged on the wall of the slag discharge riser 5. The slag discharge principle is: when the gas source mechanism is started, high-pressure gas enters the slag discharge riser 5 through the air inlet, and then the sand layer 12 where the lower end of the slag discharge riser 5 is located will be blown up, and mixed with the water 13 on the sand layer 12 to form a mixture of sand and water that is easy to extract, so as to facilitate the transportation of the mixture to the slag discharge riser for discharge, so as to realize the cleaning of the anchor pile pipe.

[0004] However, it was found during construction that during the insertion of the slag discharge riser 5, the sand layer entered the slag discharge riser from the lower port, and the sand layer particles were easily blocked in the slag discharge riser 5. In addition, during long-term operation, the inner wall of the slag discharge riser 5 near the lower port was easily adhered to sand particles, which easily blocked the air inlet. It was difficult to loosen the sand particles by relying solely on one air inlet. During construction, it took a long time to blow away the adhered or blocked sand particles to ensure smooth ventilation and hole cleaning, resulting in reduced hole cleaning efficiency. Utility Model Content

[0005] In view of this, the utility model aims to propose a hole cleaning device for steel trestle steel pipe pile anchor piles, which is convenient for loosening and removing sand particles blocking the slag discharge riser and sand particles adhering to the inner wall of the slag discharge riser, so as to improve the smooth ventilation to the lower port of the slag discharge riser, thereby improving the efficiency of cleaning the anchor pile pipe.

[0006] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0007] A hole cleaning device for steel pipe pile anchor piles of a steel trestle comprises a slag discharge riser, a connecting pipe and a water inlet pipe arranged in the anchor pile pipe, the water inlet pipe is connected to a water source, and its water outlet is located above the sand layer in the anchor pile pipe, the lower port of the slag discharge riser is inserted into the sand layer in the anchor pile pipe, the slag discharge riser is provided with an annular cover at the part extending into the sand layer, a closed annular cavity is formed between the annular cover and the side wall of the slag discharge riser, the connecting pipe is externally connected to the annular cover and communicated with the annular cavity, the connecting pipe is connected to an air source mechanism, and a plurality of air inlet holes respectively communicated with the annular cavity are provided on the pipe wall of the slag discharge riser at corresponding annular cavity positions.

[0008] Furthermore, the air inlet holes include a plurality of first air inlet holes evenly arranged in a circumferential direction, and a plurality of second air inlet holes evenly arranged in a circumferential direction, and the first air inlet holes are located above the second air inlet holes.

[0009] Furthermore, the first air inlet hole is an inclined hole, and the end thereof facing the inside of the slag discharge standpipe is the lower end;

[0010] The second air inlet hole is a horizontal hole structure.

[0011] Furthermore, the air source mechanism is an air compressor, and the connecting pipe is connected through an air intake hose.

[0012] Furthermore, the upper end of the slag discharge riser is connected to the slag discharge horizontal pipe.

[0013] Furthermore, the lower port of the slag discharge riser is an oblique cut structure.

[0014] Furthermore, the bottom surface of the annular cover is an inverted conical surface structure.

[0015] Compared with the prior art, the steel trestle steel pipe pile anchor pile cleaning device described in the utility model has the following advantages:

[0016] In the utility model, the arrangement of the annular cavity and multiple air inlet holes can blow toward the sand layer at the lower end of the slag discharge riser at multiple angles and directions, which is convenient for loosening the sand layer entering the lower end of the slag discharge riser, and then for blowing up the sand layer and mixing it with the water above the sand layer in the anchor pile pipe to form a mixture, so as to discharge the sand and improve the efficiency and safety of the anchor pile pipe hole cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0018] Figure 1 It is a schematic diagram of an existing steel pipe pile anchor hole cleaning device;

[0019] Figure 2This is a schematic diagram of a hole cleaning device for steel pipe pile anchor piles of a steel trestle described in an embodiment of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the lower port of the slag discharge riser in this embodiment;

[0021] Description of reference numerals:

[0022] 1-anchor pipe; 3-air compressor; 4-air intake hose; 5-slag discharge riser; 51-first air inlet hole; 52-second air inlet hole; 53-lower port; 6-water inlet pipe; 7-water pump; 8-connecting pipe; 9-annular cover; 10-annular cavity; 11-slag discharge horizontal pipe; 12-sand layer; 13-water. DETAILED DESCRIPTION

[0023] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0024] like Figure 2 , 3 As shown, a steel trestle steel pipe pile anchor hole cleaning device comprises a slag discharge riser 5, a connecting pipe 8 and a water inlet pipe 6 arranged in the anchor pipe 1, wherein the water inlet pipe 6 is vertically arranged, and its water inlet is connected to a water source through a water pump 7, and the water outlet of the water inlet pipe 6 is located above the sand layer 12 in the anchor pipe. When the water pump is turned on, water 13 is injected into the space above the sand layer 12 in the anchor pipe 1. The lower port 53 of the slag discharge riser 5 is inserted into the sand layer 12, and the upper port thereof is connected to the slag discharge transverse pipe 11. An annular cover 9 is provided on the outside of the pipe wall of the slag discharge riser 5 near the lower port 53, and the annular cover 9 is also inserted into the sand layer 12. A closed annular cavity 10 is formed between the annular cover 9 and the side wall of the slag discharge riser 5. The pipe wall of the slag discharge riser 5 is provided with a plurality of first air inlet holes 51 and a second air inlet hole 52 at the positions of the corresponding annular cavity 10. The plurality of first air inlet holes 51 are evenly arranged in the circumferential direction, and the plurality of second air inlet holes 52 are evenly arranged in the circumferential direction, and the first air inlet holes 51 are located above the second air inlet holes 52, and the first air inlet holes 51 and the second air inlet holes 52 are both communicated with the annular cavity 10. The connecting pipe 8 is externally connected to the annular cover 9 and communicates with the annular cavity 10. The connecting pipe 8 is connected to an air source mechanism, which is an air compressor 3. The connecting pipe 8 is connected to the air compressor 3 through an air intake hose 4. The air source mechanism is used to blow up the slag in the sand layer 12 at the lower port 53 of the slag discharge riser 5 in the anchor pipe 1, mix it with water 13, and finally transport it to the upper port of the slag discharge riser 5 and discharge it from the slag discharge horizontal pipe 11.

[0025] In the structure of the utility model, the slag discharge riser 5 is provided with a plurality of first air inlet holes 51 and a plurality of second air inlet holes 52 which are connected to the annular cavity, and air can be blown in multiple directions and angles to the sand particles blocked in the lower port of the slag discharge riser 5 and the sand particles adhered to the inner wall of the slag discharge riser 5, so as to quickly loosen them and improve their removal efficiency, so as to keep the device blowing air smoothly to the sand layer 12 at the lower port 53.

[0026] In the present invention, the first air inlet 51 is an inclined hole, the end of which faces the inside of the slag discharge standpipe 5 is the lower end, and the end of which faces the annular cavity 10 is the higher end. The second air inlet 52 is a horizontal hole structure, so as to loosen and remove the sand particles blocked in the lower end of the slag discharge standpipe 5.

[0027] In the present invention, in order to realize the rapid insertion of the slag discharge standpipe 5, the lower port 53 of the slag discharge standpipe is an oblique cut structure. The bottom surface of the annular cover 9 is an inverted conical surface structure.

[0028] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A hole cleaning device for steel pipe pile anchor piles of a steel trestle, characterized in that: The utility model comprises a slag discharge riser (5), a connecting pipe (8) and a water inlet pipe (6) arranged in an anchor pile pipe (1); the water inlet pipe (6) is connected to a water source, and its water outlet is located above a sand layer (12) in the anchor pile pipe; a lower port (53) of the slag discharge riser (5) is inserted into the sand layer (12) in the anchor pile pipe; an annular cover (9) is provided at the portion of the slag discharge riser (5) extending into the sand layer (12); a closed annular cavity (10) is formed between the annular cover (9) and the side wall of the slag discharge riser (5); the connecting pipe (8) is externally connected to the annular cover (9) and communicates with the annular cavity (10); the connecting pipe (8) is connected to an air source mechanism; a plurality of air inlet holes respectively communicated with the annular cavity (10) are provided on the pipe wall of the slag discharge riser (5) at corresponding annular cavities (10) positions.

2. A hole cleaning device for steel pipe pile anchor piles of a steel trestle according to claim 1, characterized in that: The air inlet holes include a plurality of first air inlet holes (51) evenly arranged in a circumferential direction, and a plurality of second air inlet holes (52) evenly arranged in a circumferential direction, wherein the first air inlet holes (51) are located above the second air inlet holes (52).

3. A hole cleaning device for steel pipe pile anchor piles of a steel trestle according to claim 2, characterized in that: The first air inlet hole (51) is an inclined hole, and the end thereof facing the inside of the slag discharge standpipe (5) is the lower end; The second air inlet hole (52) is a horizontal hole structure.

4. The hole cleaning device for steel pipe pile anchor piles of a steel trestle according to claim 1 is characterized by: The air source mechanism is an air compressor (3), and the connecting pipe (8) is connected via an air intake hose (4).

5. The hole cleaning device for steel pipe pile anchor piles of a steel trestle according to claim 1 is characterized by: The upper end of the slag discharge vertical pipe (5) is connected to the slag discharge horizontal pipe (11).

6. The hole cleaning device for steel pipe pile anchor piles of a steel trestle according to claim 1 is characterized by: The lower port (53) of the slag discharge riser (5) is an oblique cut structure.

7. The hole cleaning device for steel pipe pile anchor piles of a steel trestle according to claim 1 is characterized by: The bottom surface of the annular cover (9) is an inverted cone-shaped structure.

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