Cast-in-place pile hole cleaning equipment

Abstract

The utility model discloses a cast-in-place pile hole cleaning device which comprises a guide pipe, an air compressor and a gravel separation assembly, a connecting pipe is arranged in the guide pipe, an air inlet pipe is arranged between the connecting pipe and the air compressor, an air release valve is arranged at the upper end of the connecting pipe, and a sediment output pipe is arranged between one side close to the upper end of the guide pipe and the gravel separation assembly. And the sand-gravel separation assembly comprises a sand-gravel separator and a mud collecting box, the mud collecting box is arranged at the lower end of the sand-gravel separator, and a solid mud-sand outlet is formed in the side, close to the upper end of the sand-gravel separator, of the sand-gravel separator. High-pressure gas is injected into a cast-in-place pile foundation through the air compressor, sediment such as silt is blown up and fully mixed with slurry, then the mixture is conveyed to the sand-stone separator through the guide pipe to be separated, sediment at the bottom of a hole can be rapidly removed, the hole cleaning efficiency is improved, and the construction cost is reduced. And the hole cleaning force can be controlled by adjusting the pressure and the flow of the gas, so that different construction conditions are adapted.

Description

Technical Field

[0001] The utility model relates to, but is not limited to, the technical field of pile foundation hole cleaning, and specifically relates to a hole cleaning device for cast-in-place piles. Background Technique

[0002] The secondary hole cleaning of pile foundations generally adopts methods such as positive circulation hole cleaning, pump suction reverse circulation hole cleaning, and air lift reverse circulation hole cleaning. These hole cleaning methods all utilize natural sedimentation in a sedimentation tank. The principle of the sedimentation tank is to use the relatively large specific gravity of sand and gravel to precipitate at the bottom of the tank, thereby achieving the purpose of hole cleaning. This method often requires long-term and multiple circulations to meet the requirements.

[0003] In the prior art, traditional processes such as positive circulation hole cleaning, pump suction reverse circulation hole cleaning, and air lift reverse circulation hole cleaning require better site excavation for sedimentation tanks, and are greatly restricted by site factors. Traditional processes such as positive circulation hole cleaning, pump suction reverse circulation hole cleaning, and air lift reverse circulation hole cleaning utilize the principle of natural sedimentation and require a long time. However, the secondary hole cleaning of pile foundations cannot wait too long, so the hole cleaning is often not thorough, the sediment at the bottom of the pile is thick, which affects the quality of the pile foundation. Therefore, a hole cleaning device for cast-in-place piles is designed. Content of the Utility Model

[0004] The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide a hole cleaning device for cast-in-place piles.

[0005] To solve the above technical problem, the utility model provides the following technical solutions:

[0006] A hole cleaning device for cast-in-place piles of the utility model includes a conduit, an air compressor, and a sand and gravel separation component. A connecting pipe is arranged inside the conduit. An air inlet pipe is arranged between the connecting pipe and the air compressor. A gas release valve is arranged at the upper end of the connecting pipe. A sediment output pipe is arranged between the upper end side of the conduit close to the conduit and the sand and gravel separation component. The sand and gravel separation component includes a sand and gravel separator and a mud collection tank. The mud collection tank is arranged at the lower end of the sand and gravel separator. A solid mud and sand outlet is arranged at the upper end side of the sand and gravel separator close to the sand and gravel separator.

[0007] As a preferred technical solution of the utility model, the output end of the air compressor is communicated with the input end of the air inlet pipe, and the output end of the air inlet pipe is communicated with and fixedly connected to one side close to the connecting pipe.

[0008] As a preferred technical solution of the utility model, the air inlet pipe is a galvanized steel pipe, the connecting pipes are all made of PE material, and the upper end of the connecting pipe is communicated with the gas release valve.

[0009] As a preferred technical solution of the utility model, the upper end of the conduit adopts a closed-end design.

[0010] As a preferred technical solution of the present utility model, the input end of the sediment output pipe is communicated with the conduit, the output end of the sediment output pipe is communicated with the input end of the sand and gravel separator, and a mud output port is opened at the lower end of the sand and gravel separator, and is communicated with the input end of the mud collection tank through the mud output port.

[0011] As a preferred technical solution of the present utility model, the sediment output pipe is made of rubber, and a mud output pipe is installed on one side of the bottom near the mud collection tank.

[0012] As a preferred technical solution of the present utility model, the outer side of the mud collection tank is connected by screws with a support frame, and a moving wheel is installed at the bottom of the support frame.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] The present utility model uses an air compressor to inject high-pressure gas into the cast-in-place pile foundation, so that sediments such as sediment and sand are blown up and fully mixed with the mud, and then are transmitted through the conduit to the sand and gravel separator for separation. It can quickly remove the sediment at the bottom of the hole, improve the hole cleaning efficiency, and can control the hole cleaning intensity by adjusting the pressure and flow rate of the gas to adapt to different construction conditions. Moreover, the discharged solid sediment is convenient to transport, and at the same time, the discharge of mud is reduced, protecting the environment, and solving the problems of the traditional process being restricted by site factors, the long secondary hole cleaning cycle time, and the incomplete secondary hole cleaning.

[0015] In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only exemplary, and for those of ordinary skill in the art, without creative efforts, other implementation drawings can be obtained according to the provided drawings.

[0016] The structures, ratios, sizes, etc. illustrated in this specification are only used to cooperate with the content disclosed in the specification for those who are familiar with this technology to understand and read, and are not used to limit the limited conditions that the present utility model can be implemented. Therefore, they do not have technical essence. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the effects that the present utility model can produce and the purposes that can be achieved, should still fall within the scope that the technical content disclosed by the present utility model can cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model and do not constitute a limitation to the present utility model. In the drawings:

[0018] Figure 1 is the overall structural schematic diagram of the present utility model;

[0019] Figure 2 is the usage schematic diagram of the present utility model;

[0020] In the figure: 100, conduit; 200, air compressor; 300, sand and gravel separation assembly; 301, sand and gravel separator; 302, mud collection tank; 303, support frame; 304, moving wheel; 305, solid sand and mud outlet; 400, connecting pipe; 500, air inlet pipe; 600, sediment output pipe; 700, air release valve; 800, cast-in-place pile foundation. Specific embodiments

[0021] As Figure 1-2 shown, the present utility model provides a hole cleaning device for cast-in-place piles, including a conduit 100, an air compressor 200, and a sand and gravel separation assembly 300. A connecting pipe 400 is arranged inside the conduit 100. An air inlet pipe 500 is arranged between the connecting pipe 400 and the air compressor 200. An air release valve 700 is arranged at the upper end of the connecting pipe 400. A sediment output pipe 600 is arranged between the upper end side of the conduit 100 close to the sand and gravel separation assembly 300. The sand and gravel separation assembly 300 includes a sand and gravel separator 301 and a mud collection tank 302. The mud collection tank 302 is arranged at the lower end of the sand and gravel separator 301. A solid sand and mud outlet 305 is arranged at the upper end side of the sand and gravel separator 301 close to it.

[0022] Further, in this embodiment, the output end of the air compressor 200 is communicated with the input end of the air inlet pipe 500. The output end of the air inlet pipe 500 is communicated with and fixedly connected to one side close to the connecting pipe 400. The cooperation of the air inlet pipe 500 and the connecting pipe 400 enables the air compressor 200 to pour high-pressure gas into the pile hole.

[0023] In this embodiment, the air inlet pipe 500 is a galvanized steel pipe, and the connecting pipes 400 are all made of PE material. The upper end of the connecting pipe 400 is communicated with the air release valve 700. After the hole cleaning is completed, the high-pressure gas in the pile hole can be discharged through the air release valve 700.

[0024] In this embodiment, the upper end of the conduit 100 adopts a closed-end design, and only the connecting pipe 400 is installed and extends into the conduit 100, so that the high-pressure gas can enter the pile hole better.

[0025] In this embodiment, the input end of the sediment output pipe 600 is communicated with the conduit 100, and the output end of the sediment output pipe 600 is communicated with the input end of the sand and gravel separator 301. A mud output port is provided at the lower end of the sand and gravel separator 301, and it is communicated with the input end of the mud collection tank 302 through the mud output port. Through the sediment output pipe 600, after the sediment is blown up by the high-pressure gas, it can enter the sand and gravel separator 301 through the sediment output pipe 600. After the separation in the sand and gravel separator 301 is completed, the mud enters the mud collection tank 302 through the output port at the bottom.

[0026] In this embodiment, the sediment output pipe 600 is made of rubber, and a mud output pipe is installed on one side of the bottom close to the mud collection tank 302. The mud can be introduced back into the pile hole through the mud output pipe.

[0027] In this embodiment, the outer side of the mud collection tank 302 is connected by screws to a support frame 303, and a moving wheel 304 is installed at the bottom of the support frame 303. The support frame 303 with the moving wheel 304 facilitates the movement of the mud collection tank 302, and the moving wheel 304 is equipped with a brake by itself to fix the usage position.

[0028] Specifically, the hole cleaning equipment for cast-in-place piles consists of five parts: an air compressor 200, a conduit 100, a sand and gravel separator 301, an air inlet pipe 500, a connecting pipe 400, and a sediment output pipe 600. The conduit 100 is installed in the cast-in-place pile foundation 800, and the end of the conduit 100 uses a closed end. A galvanized steel pipe for connecting the air compressor 200, that is, the air inlet pipe 500, is fixed at the upper end of the conduit 100. A sediment output pipe 600 connecting the sand and gravel separator 301 is installed on the side close to the upper end of the conduit 100, and the port diameter is 100 mm. The air compressor 200 sends high-pressure gas to the bottom of the pile hole through the air inlet pipe 500, blows up sediment such as sand and mud to be fully mixed with the mud, and conveys it to the sand and gravel separator 301 through the conduit 100 and the sediment output pipe 600. The sand and gravel separator 301 separates the sediment from the mud using principles such as filtration and compaction. The separated mud is collected by the mud collection tank 302 and returned to the pile hole through a pipeline. The sediment is compressed into solid lumps and discharged from the solid mud and sand outlet 305 of the sand and gravel separator 301 to complete the hole cleaning work.

[0029] The components such as the conduit 100, air compressor 200, sand and gravel separator 301, mud collection tank 302, support frame 303, moving wheel 304, solid mud and sand outlet 305, connecting pipe 400, air inlet pipe 500, sediment output pipe 600, air release valve 700, and cast-in-place pile foundation 800 of the present utility model are all common standard parts or parts known to those skilled in the art. Their structures and principles can all be known by those skilled in the art through technical manuals or obtained through conventional experimental methods.

[0030] In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by terms such as "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inner", "front part", "center", "both ends", etc. are based on the orientation or positional relationships shown in the drawings. These are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0031] In addition, the terms "first", "second", "third", "fourth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", "third", "fourth" may explicitly or implicitly include at least one of such features.

[0032] In the present utility model, unless otherwise clearly defined and limited, terms such as "installed", "set", "connected", "fixed", "swivelly connected", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. Unless otherwise clearly limited, for those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0033] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A hole cleaning device for cast-in-place piles, characterized in that, It includes a conduit (100), an air compressor (200) and a sand and gravel separation assembly (300). A connecting pipe (400) is arranged inside the conduit (100). An air inlet pipe (500) is arranged between the connecting pipe (400) and the air compressor (200). A deflation valve (700) is arranged at the upper end of the connecting pipe (400). A sediment output pipe (600) is arranged between one side near the upper end of the conduit (100) and the sand and gravel separation assembly (300). The sand and gravel separation assembly (300) includes a sand and gravel separator (301) and a mud collection tank (302). The mud collection tank (302) is arranged at the lower end of the sand and gravel separator (301). A solid sand and mud outlet (305) is arranged at one side near the upper end of the sand and gravel separator (301).

2. The hole cleaning device for cast-in-place piles according to claim 1, wherein The output end of the air compressor (200) is communicated with the input end of the air inlet pipe (500), and the output end of the air inlet pipe (500) is communicated with and fixedly connected to one side near the connecting pipe (400).

3. The hole cleaning device for cast-in-place piles according to claim 2, wherein The air inlet pipe (500) is a galvanized steel pipe, the connecting pipes (400) are all made of PE material, and the upper end of the connecting pipe (400) is communicated with the deflation valve (700).

4. The a cast-in-place pile hole cleaning device according to claim 3, characterized in that, The upper end of the conduit (100) adopts a closed-end design.

5. An underwater concrete pile hole cleaning device according to claim 4, wherein, The input end of the sediment output pipe (600) is communicated with the conduit (100), the output end of the sediment output pipe (600) is communicated with the input end of the sand and gravel separator (301), and a mud output port is arranged at the lower end of the sand and gravel separator (301), and is communicated with the input end of the mud collection tank (302) through the mud output port.

6. The post-grouting cast-in-place pile hole cleaning device according to claim 5, wherein, The sediment output pipe (600) is made of rubber material, and a mud output pipe is installed at one side near the bottom of the mud collection tank (302).

7. The a cast-in-place pile hole cleaning device according to claim 6, wherein, A support frame (303) is screwed on the outer side of the mud collection tank (302), and a moving wheel (304) is installed at the bottom of the support frame (303).

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