Drilling slurry circulation distribution system of fish collecting tank occlusion cast-in-place pile of fish collecting system

Abstract

The utility model discloses a drilling slurry circulation distribution system for a fish collecting tank occlusion cast-in-place pile of a fish collecting system. The drilling slurry circulation distribution system comprises a cast-in-place pile hole for containing the cast-in-place pile to be formed in the later period; the drilling machine is provided with a drilling rod extending into the cast-in-place pile hole; the top of the drill rod is communicated with a slurry conveying pipeline; a slurry pump for pumping slurry is mounted in the middle of the slurry conveying pipeline; the relay pool is used for containing slurry in the slurry conveying pipeline, and the relay pool is of an open structure and is zero-pressure. When a drill rod of the drilling machine needs to be shut down for a short time, the valve A is opened, the slurry pump continues to conduct pumping work, the relay pool is of an open structure and is zero in pressure, slurry in the slurry conveying pipeline is conveyed into the relay pool, and the situation that the slurry in the slurry conveying pipeline needs to be continuously conveyed into a cast-in-place pile hole and then circulates into the circulating pool is avoided; the discharging speed of the slurry in the slurry conveying pipeline is increased, so that the pressure of the slurry conveying pipeline can be quickly relieved.

Description

Technical Field

[0001] This utility model relates to a drilling mud circulation distribution system for a fish collection system with a fish collection trough interlocking cast-in-place pile, belonging to the field of water conservancy facility construction technology. Background Technology

[0002] The fish collection system's fish collection trough requires support from interlocking cast-in-place piles, which need to be drilled in the soil and rock layers before being cast into shape. During the drilling of the cast-in-place piles, mud circulation is used to form the pile holes.

[0003] The existing cast-in-place pile drilling system, as described in Chinese Patent Publication No. CN109882097A, involves mud in a circulation tank being transported to the drill rod of the drilling rig through a slurry delivery pipeline equipped with a mud pump. Although this allows for the input of slurry, when the drill rod needs to be stopped for a short period, the mud in the slurry delivery pipeline can only be continuously transported to the cast-in-place pile hole and then circulated back to the circulation tank, resulting in the inability to quickly depressurize the slurry delivery pipeline. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a drilling mud circulation distribution system for a fish collection system with a fish collection trough interlocking grouting pile.

[0005] This utility model is achieved through the following technical solution.

[0006] This utility model provides a drilling mud circulation distribution system for a fish collection system with a fish collection trough and interlocking grouting pile, comprising:

[0007] The grouting hole for later-stage casting-in-place pile formation;

[0008] A drilling rig, equipped with a drill rod that extends into the borehole of the cast-in-place pile;

[0009] The top of the drill pipe is connected to a grout delivery pipe, and a mud pump for pumping grout is installed in the middle of the grout delivery pipe.

[0010] It also includes a relay tank that contains the slurry inside the slurry delivery pipeline. The relay tank is an open structure and is under zero pressure.

[0011] A protective casing is installed at the top of the grouting pile hole to support and protect the top of the grouting pile hole.

[0012] The drill rod is equipped with a drill bit at the bottom, and the inside of the drill rod is a hollow through hole. The drill bit is equipped with a slurry discharge through hole, and the slurry enters from the top of the drill rod and is discharged from the drill bit.

[0013] It also includes a sedimentation tank to contain overflowing slurry. The sedimentation tank has a circulation tank and a slurry preparation tank on its side. The sedimentation tank is connected to the top of the grouting pile hole through a slurry conveying pipe. The circulation tank is connected to the sedimentation tank and the slurry preparation tank through pipelines.

[0014] The circulating pool is equipped with a slurry conveying pipeline.

[0015] The relay pool is connected to the top of the drill pipe via valve A; the bottom of the relay pool is connected to the slurry pump inlet via valve B; and the side of the relay pool opposite to valve A is connected to the circulation pool via valve C.

[0016] The relay tank is equipped with a stirrer for stirring the slurry.

[0017] The beneficial effects of this utility model are as follows: when the drill rod of the drilling rig needs to be stopped for a short time, valve A is opened and the mud pump continues to pump. Since the intermediate pool is an open structure with zero pressure, the slurry in the grouting pipeline is transported to the intermediate pool, avoiding the need for the mud in the grouting pipeline to be continuously transported to the grouting pile hole and then circulated back to the circulation pool. This improves the mud discharge speed in the grouting pipeline and enables the grouting pipeline to achieve rapid pressure relief. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the distribution of this utility model;

[0019] In the diagram: 1-Grouting pile hole; 11-Casing; 2-Drilling rig; 21-Drill rod; 22-Drill bit; 3-Sedimentation tank; 4-Circulation tank; 5-Grouting pipeline; 51-Mud pump; 6-Relay tank; 7-Agitator; 61-Valve A; 62-Valve B; 63-Valve C; 8-Grouting tank; 9-Ground. Detailed Implementation

[0020] The technical solution of this utility model is further described below, but the scope of protection is not limited to what is described.

[0021] like Figure 1 As shown.

[0022] This application discloses a drilling mud circulation distribution system for a fish collection system with a fish collection trough and interlocking cast-in-place pile, comprising:

[0023] A cast-in-place pile hole 1 is formed in the soil and rock layer of the construction environment. A protective casing 11 is installed on the top of the cast-in-place pile hole 1 to support and protect the top of the cast-in-place pile hole 1.

[0024] It also includes a drilling machine 2 installed on the ground 9 at the top of the grouting pile hole 1. The drilling machine 2 is equipped with a drill rod 21 that extends into the grouting pile hole 1. The bottom of the drill rod 21 is equipped with a drill bit 22. The inside of the drill rod 21 is a hollow through hole. The drill bit 22 is equipped with a grout discharge through hole. The grout enters from the top of the drill rod 21 and is discharged from the drill bit 22. When the drill bit 22 rotates, it carries the grout to form and reinforce the grouting pile hole 1.

[0025] It also includes a sedimentation tank 3 for containing overflowing slurry. The sedimentation tank 3 has a circulation tank 4 and a slurry preparation tank 8 on its side. The sedimentation tank 3 is connected to the top of the grouting pile hole 1 through a slurry conveying pipe. The circulation tank 4 is connected to the sedimentation tank 3 and the slurry preparation tank 8 through pipes respectively. The slurry settled in the sedimentation tank 3 flows into the circulation tank 4. The slurry prepared in the slurry preparation tank 8 is then transported to the circulation tank 4.

[0026] The circulating pool 4 is equipped with a slurry conveying pipe 5, which is connected to the top of the drill rod 21. A mud pump 51 for pumping slurry is installed in the middle of the slurry conveying pipe 5.

[0027] It also includes a relay tank 6 for containing the slurry in the slurry delivery pipeline 5. The relay tank 6 is an open structure with zero pressure. The relay tank 6 is connected to the top of the drill rod 21 through valve A61. An agitator 7 for stirring the slurry is installed on the relay tank 6 to prevent the slurry in the relay tank 6 from solidifying.

[0028] The bottom of the relay tank 6 is connected to the slurry conveying pipe 5 at the inlet of the mud pump 51 via valve B62, and the side of the relay tank 6 opposite to valve A61 is connected to the circulation tank 4 via valve C63.

[0029] When the drill rod 21 of the drilling rig 2 needs to be stopped for a short time, valve A61 is opened and mud pump 51 continues to pump. Since the intermediate pool 6 is an open structure with zero pressure, the slurry in the slurry pipeline 5 is transported to the intermediate pool 6, avoiding the need for the slurry in the slurry pipeline to be continuously transported to the grouting pile hole and then circulated back to the circulation pool. This increases the slurry discharge speed in the slurry pipeline, enabling the slurry pipeline to achieve rapid pressure relief.

[0030] This application discloses a drilling mud circulation construction method for a fish collection system with interlocking cast-in-place piles, comprising:

[0031] With valves A61 and B62 closed, mud pump 51 pumps slurry into drill rod 21 of drilling rig 2. The slurry enters from the top of drill rod 21 and exits from drill bit 22. As drill bit 22 rotates, it carries the slurry to shape and reinforce the cast-in-place pile hole 1. Excess slurry in the cast-in-place pile hole 1 overflows from the top of the hole and settles in sedimentation tank 3 before being sent to circulation tank 4. Slurry is prepared in slurry preparation tank 8 and sent to circulation tank 4. After the slurry in circulation tank 4 is mixed, mud pump 51 operates and transports the slurry through slurry delivery pipeline 5. When drill rod 21 of drilling rig 2 needs to be stopped for a short time, valve A61 opens, and mud pump 51 continues pumping. Since intermediate tank 6 is an open structure with zero pressure, the slurry in slurry delivery pipeline 5 is transported to intermediate tank 6, enabling rapid pressure relief in the slurry delivery pipeline. This achieves a drilling mud circulation distribution system for cast-in-place piles using a fish collection system and fish collection troughs, resulting in rapid discharge and pressure relief of the slurry in the slurry delivery pipeline.

[0032] When drill rod 21 of drilling rig 2 continues to operate, valve A61 is closed and valve B62 is open, and the slurry in relay tank 6 is pumped into drill rod 21 by mud pump 51. Valve C63 remains open and is transferred to circulation tank 4 when the slurry in relay tank 6 is full.

Claims

1. A drilling mud circulation distribution system for a fish collection system with a fish collection trough and interlocking cast-in-place pile, characterized in that, include: The grouting hole (1) for later grouting pile formation; Drilling rig (2), the drilling rig (2) is equipped with a drill rod (21) that extends into the grouting pile hole (1); The top of the drill rod (21) is connected to the grouting pipe (5), and a mud pump (51) for pumping grout is installed in the middle of the grouting pipe (5); It also includes a relay pool (6) for containing the slurry in the slurry delivery pipe (5), and the relay pool (6) is an open structure with zero pressure.

2. The drilling mud circulation distribution system for the fish collection system and the interlocking cast-in-place pile as described in claim 1, characterized in that: A casing (11) is installed on the top of the grouting pile hole (1).

3. The drilling mud circulation distribution system for the fish collection system and the interlocking cast-in-place pile as described in claim 1, characterized in that: The drill rod (21) is provided with a drill bit (22) at the bottom. The drill rod (21) has a hollow through hole inside. The drill bit (22) is provided with a slurry discharge through hole. The slurry enters from the top of the drill rod (21) and is discharged from the drill bit (22).

4. The drilling mud circulation distribution system for the fish collection system and the interlocking cast-in-place pile as described in claim 1, characterized in that: It also includes a sedimentation tank (3) for accommodating overflow slurry. The sedimentation tank (3) has a circulation tank (4) and a slurry preparation tank (8) on its side. The sedimentation tank (3) is connected to the top of the grouting pile hole (1) through a slurry conveying pipe. The circulation tank (4) is connected to the sedimentation tank (3) and the slurry preparation tank (8) through pipes respectively.

5. The drilling mud circulation distribution system for the fish collection system and fish collection trough interlocking cast-in-place pile as described in claim 4, characterized in that: The circulating tank (4) is equipped with a slurry conveying pipe (5).

6. The drilling mud circulation distribution system for the fish collection system and the interlocking cast-in-place pile as described in claim 1, characterized in that: The relay pool (6) is connected to the top of the drill pipe (21) through valve A (61); the bottom of the relay pool (6) is connected to the slurry delivery pipe (5) at the inlet of the mud pump (51) through valve B (62), and the side of the relay pool (6) opposite to valve A (61) is connected to the circulation pool (4) through valve C (63).

7. The drilling mud circulation distribution system for the fish collection system and fish collection trough interlocking cast-in-place pile as described in claim 6, characterized in that: The relay tank (6) is equipped with a stirrer (7) for stirring the slurry.

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