CN214196217U

CN214196217U - Construction device for large pipe shed in pebble stratum with increased particle size through plain soil

Info

Publication number: CN214196217U
Application number: CN202120157985.4U
Authority: CN
Inventors: 冯少腾; 赵伟; 高建国; 李伟; 刘春勇
Original assignee: Fang Yuan Heng Ji Geotechnical Engineering Technology Co ltd
Current assignee: Fang Yuan Heng Ji Geotechnical Engineering Technology Co ltd
Priority date: 2021-01-20
Filing date: 2021-01-20
Publication date: 2021-09-14
Anticipated expiration: 2031-01-20

Abstract

The application relates to a construction device for a large pipe shed in a pebble stratum with increased particle size by using plain soil, which comprises a base and a drill rod arranged on the base, wherein the base is also provided with a driving motor capable of driving the drill rod to rotate; the method is characterized in that: the device comprises a plurality of cold water pipes arranged on a drill rod, wherein the plurality of cold water pipes are uniformly distributed around the axis of the drill rod; the drill bit is fixedly connected to one end, far away from the drill bit, of the drill rod, the water outlet end of the cold water pipe is located on the drill bit, and the cold water pipe provides high-pressure water spraying. This application has and prevents the raise dust, and can cool down the drill bit simultaneously, improves drill bit life's effect.

Description

Construction device for large pipe shed in pebble stratum with increased particle size through plain soil

Technical Field

The application relates to the field of tunnel construction, in particular to a construction device for a large pipe shed in a pebble stratum with increased particle size by using plain soil.

Background

The pipe-shed construction or umbrella arch method is a advance support structure for underground construction in shallow-buried excavation. The essence of the method is that a thick-wall steel pipe with large inertia moment is pre-drilled and installed on a lining arch ring hidden and buried arc line of an underground tunnel or structural engineering to be excavated, so that the temporary advanced support effect is achieved, and soil layer collapse and ground surface subsidence are prevented, so that the safe operation of the tunneling and subsequent support process is ensured.

The pipe roof is at the in-process of construction, generally can adopt shallow hammer drill to punch, and can adopt at the process of construction with the pipe construction, and the in-process sleeve pipe that punches promptly can get into thereupon to this provides the efficiency of construction, at the in-process of drilling, can let in high-pressure wind to downthehole, directly blows off the rubble that the in-process produced that will punch.

In view of the above-mentioned related technologies, the inventor believes that in the process of blowing out the broken stones by high-pressure wind, the broken stones will generate dust under the effect of the high-pressure wind, which causes environmental pollution.

SUMMERY OF THE UTILITY MODEL

In order to reduce the raise dust that produces among the punching process, this application provides a construction equipment of big pipe shed in plain soil increaseed particle diameter cobble stratum.

The application provides a big pipe shed's in plain soil increaseed particle diameter cobble stratum construction equipment adopts following technical scheme:

a construction device for a large pipe shed in a pebble stratum with increased particle size by using plain soil comprises a base and a drill rod arranged on the base, wherein the base is also provided with a driving motor capable of driving the drill rod to rotate; the method is characterized in that: the device comprises a plurality of cold water pipes arranged on a drill rod, wherein the plurality of cold water pipes are uniformly distributed around the axis of the drill rod;

the drill bit is fixedly connected to one end, far away from the drill bit, of the drill rod, the water outlet end of the cold water pipe is located on the drill bit, and the cold water pipe provides high-pressure water spraying.

Through adopting above-mentioned technical scheme, the cold water pipe can be with high-pressure cold water input drill bit department, carries out cooling to the drill bit to reduce the wearing and tearing that the drill bit received, increase the life of drill bit, water and rubble, piece mix simultaneously, can reduce the production of raise dust, the water under high pressure has the impact force, can also play the purpose of assaulting the disintegrating slag, improves the discharge efficiency of rubble.

Optionally, an accommodating groove for accommodating the cold water pipe is formed in the circumferential surface of the drill rod, and the extending direction of the accommodating groove is the same as the axial direction of the drill rod.

Through adopting above-mentioned technical scheme, the holding tank can make the cold water pipe can not stick out the surface of drilling rod, and then makes the surface of drilling rod can not form protrudingly, avoids protruding on the drilling rod to cause the influence to the follow-up of sheathed tube, and also avoids simultaneously causing the influence to the discharge of rubble, disintegrating slag.

Optionally, the cross section of the accommodating groove is rectangular, the cross section of the cold water pipe is also similar to the rectangular, and the surface of the cold water pipe coinciding with the surface of the drill rod is an arc-shaped surface.

Through adopting above-mentioned technical scheme, make the surface of cold water pipe can laminate with the surface radian of drilling rod, make the drilling rod surface not only not have the arch, also do not have the recess, and then avoid the remaining of rubble, disintegrating slag.

Optionally, a plurality of water outlet holes are formed in the surface of the drill bit, the water outlet holes are uniformly distributed around the axis of the drill bit, and the cold water pipe is communicated with the water outlet holes.

Through adopting above-mentioned technical scheme, a plurality of apopores can make cold water spun more even to can improve the effect of cooling, can also make things convenient for the spun water column to erode the rubble simultaneously.

Optionally, the apopore slope sets up, and apopore incline direction and the rotation direction of drill bit are opposite.

Through adopting above-mentioned technical scheme, make from apopore spun water have the impact force more to what make cold water can be better erodees rubble, disintegrating slag.

Optionally, a circle of annular cavity is formed inside the drill bit, and the annular cavity is communicated with the plurality of water outlet holes and the plurality of cold water pipes.

Through adopting above-mentioned technical scheme, the annular cavity links into an organic whole with a plurality of cold water pipes and a plurality of apopores, can prevent that certain outlet pipe or apopore from blockking up and causing the influence to water supply system.

Optionally, one end of the cold water pipe, which is far away from the drill bit, is arranged on an annular connecting pipe sleeved on the drill rod, the connecting pipe is fixedly connected with the drill rod, and the connecting pipe is simultaneously communicated with the plurality of cold water pipes;

one side of connecting pipe still is equipped with the annular transition pipe of cover on the drilling rod, and transition pipe and connecting pipe rotate to be connected, make the transition pipe rotate along the axis of self, and transition pipe and connecting pipe are connected, can also connect external water pipe simultaneously on the transition pipe.

Through adopting above-mentioned technical scheme, through the setting of connecting pipe and transition pipe, can supply water to a plurality of cold water pipes simultaneously, and can not influence the rotation of drilling rod.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the drill rod is provided with the cold water pipe, the cold water pipe provides high-pressure cold water for the drill bit, the drill bit can be cooled, the abrasion degree of the drill bit is reduced, the service life of the drill bit is prolonged, and meanwhile, the high-pressure cold water can be sprayed out to wash broken slag, so that the slag discharging efficiency is improved;

2. apopore slope on the drill bit sets up, and the incline direction of apopore is opposite with the direction of rotation of drill bit, and then improves the dynamics of washing away of cold water, improves the efficiency of arranging the sediment.

Drawings

FIG. 1 is a schematic view of the whole construction apparatus in the embodiment.

Fig. 2 is a sectional view of a cold water pipe of a highlighted structure in the embodiment.

FIG. 3 is a sectional view showing the internal structure of the drill bit in the embodiment.

FIG. 4 is a sectional view showing the connection relationship of the connection pipe, the transition pipe and the cold water pipe in the embodiment.

Description of reference numerals: 1. a machine base; 11. a drive motor; 2. a drill stem; 21. accommodating grooves; 3. a drill bit; 31. a water outlet hole; 32. a water channel; 33. an annular cavity; 4. a cold water pipe; 5. a connecting pipe; 6. a transition duct.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses a construction device for a large pipe shed in a pebble stratum with increased particle size by plain soil. Referring to fig. 1, the construction apparatus includes a base 1, a drill rod 2 provided on the base 1; the machine base 1 is fixedly connected with a driving motor 11, the drill rod 2 is fixedly connected with an output shaft of the driving motor 11, and one end of the drill rod 2, which is far away from the driving motor 11, is fixedly connected with a drill bit 3; the driving motor 11 drives the drill rod 2 to rotate, and then drives the drill bit 3 to rotate, the upper portion of a required construction area is drilled, and the sleeve is also tracked, a down-the-hole hanging sleeve tracking construction method is adopted, namely the sleeve is tracked while drilling, drilling is completed, the sleeve is also installed, then concrete is poured, the construction of a large pipe shed can be completed, because the sleeve is also tracked while drilling, high-pressure gas can be introduced in the drilling process, crushed stone and crushed slag of the drill bit 3 are blown out from the gap between the sleeve and the drill rod 2, the purpose of slag discharge is achieved, and the influence on the tracking of the sleeve is avoided.

Referring to fig. 1 and 2, the drill rod 2 is provided with a plurality of cold water pipes 4, the length directions of the cold water pipes 4 are the same as the length direction of the drill rod 2, the plurality of cold water pipes 4 are uniformly distributed around the axis of the drill rod 2, the cold water pipes 4 can supply water to the drill bit 3, cold water can firstly cool the drill bit 3, the probability that the drill bit is heated due to heat generated by friction in the working process is reduced, the abrasion of the drill bit 3 is reduced, and the service life of the drill bit 3 is prolonged; meanwhile, cold water can be mixed with the slag, dust is prevented from being generated in the slag discharge process, and a cold water source provided by the cold water pipe 4 is continuous, so that the cold water can flow out of the sleeve, the slag can be taken out, and slag discharge efficiency is improved.

Referring to fig. 2 and 3, a plurality of holding tanks 21 have been seted up to the periphery of drilling rod 2, and the extending direction of a plurality of holding tanks 21 is the same with the length direction of drilling rod 2, and a plurality of holding tanks 21 surround drilling rod 2's axis evenly distributed, and cold water pipe 4 is in holding tank 21 to make cold water pipe 4 can not stick out the surface of drilling rod 2, and the surface of drilling rod 2 can not produce extra arch, thereby can not cause the influence to the follow-up of sheathed tube, also can not cause the influence to arranging the sediment.

Referring to fig. 2 and 3, one side of the cold water pipe 4 close to the surface of the drill rod 2 is an arc-shaped surface, and the radian is the same as that of the surface of the drill rod 2, so that the surface of the drill rod 2 is a smooth curved surface, and no protrusion or depression exists, so that residue discharged cannot be caused, and influence on rotation of the drill rod 2 is avoided.

Referring to fig. 3, a plurality of water outlets 31 are formed in the surface of the drill bit 3, the water outlets 31 are uniformly distributed around the axis of the drill bit 3, a water channel 32 communicating the water outlets 31 with a cold water pipe 4 is formed in the drill bit 3, cold water provided by the cold water pipe 4 firstly enters the water channel 32 to cool the drill bit 3, and then is discharged through the water outlets 31, so that the slag is washed and then flows out of the casing, and the purpose of slag removal is achieved.

Referring to fig. 3, the water outlet hole 31 is inclined, and the inclined direction of the water outlet hole 31 is opposite to the rotating direction of the drill bit 3, so that the impact force of cold water sprayed from the water outlet hole 31 is provided, and the slag can be better washed.

Referring to fig. 3, a circle of annular cavity 33 is further arranged inside the drill bit 3, the annular cavity 33 communicates all the water channels 32 with the water outlet holes 31, and after a certain water outlet hole 31 is blocked, cold water inside the cold water pipe 4 can be sprayed out from other water outlet holes 31, so that the problem that the safety of the cold water pipe 4 is affected due to overhigh pressure inside the cold water pipe 4 is avoided.

Referring to fig. 1 and 4, an annular connecting pipe 5 and a transition pipe 6 are further sleeved at one end, far away from the drill bit 3, of the drill rod 2, the connecting pipe 5 is fixedly connected to the drill rod 2, the transition pipe 6 is rotatably connected and communicated with the connecting pipe 5, so that the transition pipe 5 can rotate along the axis of the transition pipe 5, the connecting pipe 5 can rotate along with the drill rod 2, the transition pipe 6 does not rotate along with the drill rod, and the connecting pipe 5 is fixedly connected and communicated with all the cold water pipes 4; the transition pipe 6 is communicated with an external water pipe, so that water supply to the cold water pipe 4 is realized, and the interference with the rotation of the drill rod 2 is avoided.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A construction device for a large pipe shed in a pebble stratum with increased particle size by using plain soil comprises a base (1) and a drill rod (2) arranged on the base (1), wherein a driving motor (11) capable of driving the drill rod (2) to rotate is further arranged on the base (1); the method is characterized in that: the device comprises a plurality of cold water pipes (4) arranged on a drill rod (2), wherein the plurality of cold water pipes (4) are uniformly distributed around the axis of the drill rod (2);

one end of the drill rod (2) far away from the drill bit (3) is fixedly connected with the drill bit (3), the water outlet end of the cold water pipe (4) is positioned on the drill bit (3), and the cold water pipe (4) provides high-pressure water spraying.

2. The device for constructing the large pipe shed in the vegetarian soil pebble stratum with the increased grain diameter according to claim 1, wherein: the circumference of the drill rod (2) is provided with an accommodating groove (21) for accommodating the cold water pipe (4), and the extending direction of the accommodating groove (21) is the same as the axial direction of the drill rod (2).

3. The device for constructing the large pipe shed in the vegetarian soil pebble stratum with the increased grain diameter according to claim 2, wherein: the cross section shape of holding tank (21) is the rectangle, and the cross section of cold water pipe (4) is similar rectangle also, and cold water pipe (4) and drilling rod (2) surface coincidence's surface is the arcwall face.

4. The device for constructing the large pipe shed in the vegetarian soil pebble stratum with the increased grain diameter according to claim 1, wherein: a plurality of water outlet holes (31) are formed in the surface of the drill bit (3), the water outlet holes (31) are evenly distributed around the axis of the drill bit (3), and the cold water pipe (4) is communicated with the water outlet holes (31).

5. The device for constructing the large pipe shed in the vegetarian soil pebble stratum with the increased grain diameter according to claim 4, wherein: apopore (31) slope sets up, and the incline direction of apopore (31) is opposite with the direction of rotation of drill bit (3).

6. The device for constructing the large pipe shed in the vegetarian soil pebble stratum with the increased grain diameter according to claim 1, wherein: the drill bit (3) is internally provided with a ring-shaped cavity (33), and the ring-shaped cavity (33) is communicated with a plurality of water outlet holes (31) and a plurality of cold water pipes (4).

7. The device for constructing the large pipe shed in the vegetarian soil pebble stratum with the increased grain diameter according to claim 1, wherein: one end, far away from the drill bit (3), of each cold water pipe (4) is arranged on an annular connecting pipe (5) sleeved on the drill rod (2), the connecting pipes (5) are fixedly connected with the drill rod (2), and the connecting pipes (5) are communicated with the cold water pipes (4) simultaneously;

one side of connecting pipe (5) still is equipped with annular transition pipe (6) that the cover was established on drilling rod (2), and transition pipe (6) and connecting pipe (5) rotate to be connected, make transition pipe (6) rotate along the axis of self, and transition pipe (6) and connecting pipe (5) are connected, can also connect external water pipe on transition pipe (6) simultaneously.