Drilling solution cavity filling device

The rotary grouting device solves the problem of local voids caused by single-point grouting, achieves uniform filling of the drilled cavity, and improves the stability of the pile foundation and the bonding strength of the foundation.

CN223458787UActive Publication Date: 2025-10-21CHINA FIRST HIGHWAY ENGINEERING CO LTD +1
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Patent Information

Application Number
CN202423024227.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-09
Publication Date
2025-10-21
Estimated Expiration
2034-12-09

AI Technical Summary

Technical Problem

When filling the drilled cavity in existing building construction, single-point grouting is prone to form local voids, affecting the stability of the pile foundation.

Method used

A rotary grouting device is used, which combines a crawler punch with a rotary grouting device and a multi-point grouting design to achieve uniform distribution of filling materials during the drilling process.

Benefits of technology

It effectively avoids grouting gaps, improves the bonding strength between pile foundation and soil, and enhances the stability of the drilled cavity.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a drilling solution cavity filling device which comprises a crawler-type perforating machine, the crawler-type perforating machine at least comprises a perforating part, a rotary grouting device, a slurry storage tank, a pump machine and a pipeline, the slurry storage tank is arranged on the crawler-type perforating machine, and the rotary grouting device is communicated with the pipeline and the pump machine; the punching part comprises a chuck and a punching driver, and the punching driver can drive the chuck to rotate. According to the technical scheme, the rotary grouting structure is adopted, and in the drilling process, the grouting device with the rotating function is designed, so that filling materials can be more evenly distributed to all corners of a dissolved cavity, and the effect is obvious especially under the complex geological environment.
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Description

TECHNICAL FIELD

[0001] The utility model relates to building technical field, concretely is a kind of drilling solution cavity filling device. BACKGROUND

[0002] First, in construction operation, drilling operation needs to be carried out in foundation, and drilling is carried out to target depth, if encountering dissolvable soil layer, drilling may form solution cavity, and then the formed solution cavity needs to be filled, and grouting pump, grouting pipe is used to transport grouting material (such as cement slurry, slurry or special filling material) to solution cavity area through grouting pipe. The equipment injects filling material into the solution cavity by high pressure, and the filling material gradually solidifies in the solution cavity to form a stable support layer, fills the gap and enhances the bonding force between the pile body and the surrounding soil, to ensure the stability of pile foundation;

[0003] Among them, in the pouring operation, single-point grouting is generally used at present, and local gap is easily formed during grouting process, based on this, the shortcomings are improved. INVENTION CONTENTS

[0004] To achieve the above object, the utility model realizes the following technical scheme: a drilling solution cavity filling device, including caterpillar type puncher, caterpillar type puncher at least includes punch part, rotary grouting device, slurry storage tank, pump and pipeline, slurry storage tank is arranged on caterpillar type puncher, and the rotary grouting device is communicated with the pipeline and pump;

[0005] The punch part includes chuck and punch driver, and the punch driver can drive the chuck to rotate.

[0006] The chuck can clamp the drill rod and the rotary grouting device.

[0007] The rotary grouting device includes grouting rod and connector, the top end of the grouting rod is connected with the pipeline through the connector, and a strip-shaped grouting opening is arranged on the side surface of the grouting rod.

[0008] Further, a plurality of clamping ribs are arranged on the side wall of the grouting rod and clamped with the chuck.

[0009] Further, three fan-shaped grouting openings are arranged at equal angles at the bottom of the grouting rod.

[0010] Further, the connector is composed of three sealing assemblies and relatively rotatable pipe sleeves.

[0011] Further, the punch driver at least includes a gear sleeved on the chuck, a motor and a gear installed on the driving end of the motor.

[0012] ADVANTAGEOUS EFFECTS

[0013] The utility model provides a kind of drilling solution cavity filling device.It has the following beneficial effects: the technical scheme adopts rotary grouting structure, in the drilling process, design has the grouting device of rotary function, so that filling material can be more evenly distributed to each corner of solution cavity, especially under the effect of complex geological environment is more obvious. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 It is the structural diagram of the grouting rod described in the utility model.

[0015] Fig. 2 It is the structural diagram of the drilling solution cavity filling device described in the utility model.

[0016] Fig. 3 It is the main body structure diagram of the grouting rod of the drilling solution cavity filling device described in the utility model.

[0017] Fig. 4 It is the local enlarged structural diagram of the drilling solution cavity filling device described in the utility model.

[0018] In the drawing: 1, track type puncher; 2, punch part; 3, grout storage tank; 4, pump; 5, pipeline; 6, grouting rod; 7, connector; 8, strip grouting opening; 9, clamping strip; 10, fan-shaped grouting opening; 11, pipe sleeve. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0020] Please refer to Figs. 1 to 4The utility model provides a technical scheme, the present technical scheme considers that in the small -size punching grouting equipment currently, generally uses first drilling, completes drilling operation, starts single point grouting, mainly is to extend into the hole to the grouting pipe, through the pressure grout liquid, makes it fill the cavity, because the single point grouting process can form the gap, lead to the emergence of the quality problem of later period, therefore the case improves on the existing drilling equipment, the present technical scheme, including the track type puncher 1, the track type puncher 1 at least includes puncher 2, rotary grouter, grout storage tank 3, pump 4 and pipeline 5, grout storage tank 3 sets up on the track type puncher 1, rotary grouter with pipeline 5, pump 4 intercommunication, puncher 2 includes chuck, punch driver, the punch driver can drive chuck rotation, the chuck can chuck drill rod and rotary grouter, rotary grouter includes, grouting rod 6, connector 7, the top end position of grouting rod 6 is connected with pipeline 5 through connector 7, and strip grouting opening 8 is arranged on the side of grouting rod 6,

[0021] In summary, the technical scheme is to perform separate operation on the punch rod and the grouting rod 6. When rotating punching, the punch rod is fixed by the chuck and punched by the punch driver. It should be noted that the track type puncher 1 is relatively common on the market. Its punching working principle is to fix the punch rod by the chuck. The maximum limit of the punching depth can reach 30-50 meters. The driving part is to drive the chuck to rotate, so that the punch rod can rotate and drill a hole.

[0022] Based on the above principle, the grouting rod 6 is arranged on the chuck, and multiple grouting openings are added to the grouting rod 6. In this way, rotary and multi-point grouting can be realized, and the formation of grouting gaps can be effectively avoided.

[0023] At the same time, considering that the grouting rod 6 needs to rotate, a connector 7 is connected to the pipeline 5 at the end of the grouting rod 6. The connector 7 can ensure the rotation of the grouting rod 6 and the connection with the pipeline 5. Specifically, the connector 7 is composed of three sealing assemblies and a relatively rotatable pipe sleeve 11. As shown in the drawings, the three sealing assemblies are connected to the pipe sleeve 11 movably and are relatively sealed. The upper end is connected to the pipeline 5, the lower end is connected to the grouting rod 6, and the middle pipe sleeve 11 serves as a connecting part.

[0024] Further, multiple clamping ribs 9 are arranged on the side wall of the grouting rod 6 and clamped by the chuck. In this way, the clamping of the chuck on the grouting rod 6 can be increased.

[0025] Further, three fan-shaped grouting openings 10 are arranged at equal angles at the bottom of the grouting rod 6. This design can effectively speed up the grouting speed.

[0026] It is to be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises a... " does not, without more constraints, foreclose the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0027] While embodiments of the present application have been shown and described with reference to the figures, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and alterations can be made thereto without departing from the spirit and scope of the present application, which should be limited only by the scope of the appended claims and the equivalents thereof.

Claims

1. A borehole cavity filling device, comprising a caterpillar type puncher, the caterpillar type puncher at least comprising a puncher part, a rotary grouting device, a slurry storage tank, a pump and a pipeline, the slurry storage tank being arranged on the caterpillar type puncher, the rotary grouting device being in communication with the pipeline and the pump; the puncher part comprising a chuck and a puncher driver, the puncher driver being capable of driving the chuck to rotate; characterized in that the chuck being capable of clamping a drill rod and the rotary grouting device; the rotary grouting device comprising a grouting rod and a connector, the top end of the grouting rod being in communication with the pipeline through the connector, and a strip-shaped grouting opening being arranged on the side of the grouting rod.

2. A borehole cavity filling apparatus according to claim 1, wherein, a plurality of clamping ribs capable of clamping the chuck are arranged on the side wall of the grouting rod.

3. A borehole cavity filling apparatus according to claim 1, wherein, three fan-shaped grouting openings are arranged at the bottom of the grouting rod at equal angles.

4. The borehole cavity filling apparatus of claim 1, wherein, the connector is composed of three sealing assemblies and a relatively rotatable sleeve.

5. The borehole cavity filling apparatus of claim 1, wherein, the puncher driver at least comprises a gear sleeved on the chuck, a motor and a gear installed on the driving end of the motor.