Pile head heating device and hot melting pile

Abstract

The utility model provides a pile head heating device and a hot melting pile, the pile head heating device comprises a hot water bin and a hot water source, the hot water bin is arranged in the pile head of the hot melting pile so as to transfer heat energy required by melting frozen soil to the pile head of the hot melting pile; the hot water source is arranged on the outer side of the hot melting pile, the hot water source and the hot water bin form a circulation loop through a pipeline, and the pipeline is communicated with the hot water bin on the lower side from the top of the hot melting pile to the inside of the hot melting pile; according to the pile head heating device and the hot melting pile, hot water is continuously supplied into the hot water bin in the pile head in a circulating mode through the hot water source, so that the pile head is heated, frozen soil can be melted, and the hot melting pile can be put into the pile conveniently.

Description

Technical Field

[0001] The utility model relates to the field of pile foundation construction, and more specifically, to a pile head heating device and a hot-melt pile. Background Art

[0002] In high-altitude or high-latitude frozen soil areas, during the process of driving a hot-melt pile, due to the freezing or icing of the frozen soil in the pile hole and the possible deformation of the pile hole caused by low temperature, the driving operation of the hot-melt pile will be hindered, resulting in extremely time-consuming and laborious process of melting the pile hole of the hot-melt pile. Summary of the Utility Model

[0003] The purpose of the utility model is to overcome the shortcomings of the background art and provide a pile head heating device and a hot-melt pile.

[0004] The embodiments of the utility model are realized through the following technical solutions:

[0005] On the one hand, the utility model provides a pile head heating device, including:

[0006] A hot water storage tank, which is arranged inside the pile head of the hot-melt pile to transfer the heat energy required to melt the frozen soil to the pile head of the hot-melt pile; and

[0007] A hot water source, which is arranged outside the hot-melt pile. The hot water source and the hot water storage tank form a circulation loop through a pipeline. Among them, the pipeline enters the hot-melt pile from the pile top of the hot-melt pile and is connected to the lower hot water storage tank.

[0008] Further, the pipeline includes a water inlet pipe and a water outlet pipe that are connected to the inside of the hot water storage tank. Among them, a group of annular members are arranged inside the hot water storage tank. The water inlet pipe extends to the outside of one side of the annular member, and the water outlet pipe extends to the outside of the other side of the annular member opposite to the water inlet pipe.

[0009] Further, the annular member is installed on the inner wall of the upper bottom end of the hot water storage tank, and the axis of the annular member is coaxial with the axis of the hot-melt pile.

[0010] Further, both the water inlet pipe and the water outlet pipe extend downward to the outside of the middle part of the annular member in the axial direction.

[0011] Further, the hot water source includes a heating water tank for heating water and a water pump arranged on the pipeline.

[0012] On the other hand, the utility model also provides a hot-melt pile, which has the pile head heating device as described above.

[0013] Further, the hot-melt pile is a steel pipe pile or a precast reinforced concrete pile.

[0014] Among them, when the hot-melt pile is a steel pipe pile, the lower end of the hot-melt pile has a tapered portion, and the hot water storage tank is located inside the tapered portion.

[0015] Among them, when the hot-melt pile is a precast reinforced concrete pile, several coils of steel bars / steel plates are wrapped inside the pile head of the hot-melt pile located outside the hot water tank for heat conduction.

[0016] Furthermore, along the length direction of the hot-melt pile, several coils of threaded steel bars are spirally arranged on the outer wall of the hot-melt pile; a chuck is provided at the top of the hot-melt pile to hold the hot-melt pile and rotate it into the hot-melt pile hole.

[0017] The technical solutions of the embodiments of the present invention have at least the following advantages and beneficial effects:

[0018] In the pile head heating device and the hot-melt pile of the present invention, hot water is continuously circulated into the hot water tank inside the pile head through a hot water source, so that the pile head is heated and the frozen soil can be melted, facilitating the driving of the hot-melt pile; after the driving is completed, the pile hole and the hot-melt pile are naturally frozen and fixed again.

[0019] In addition, threaded steel bars are spirally arranged on the outer wall of the hot-melt pile, and a chuck is provided at the top of the pile. By mechanically clamping the top of the pile and driving the pile in a rotational manner, while the hot water melts the frozen soil, the inner wall of the pile hole can be trimmed by the rotation of the threaded steel bars, facilitating the driving of the pile. Description of the Drawings

[0020] Figure 1 It is a schematic connection diagram between the pile head heating device of the present invention and the hot-melt pile;

[0021] Figure 2 is Figure 1 an enlarged view of part A of

[0022] Reference numerals: 1 - hot water tank, 10 - annular member, 2 - hot water source, 20 - heating water tank, 21 - water pump, 3 - pipeline, 30 - water inlet pipe, 31 - water outlet pipe, 4 - hot-melt pile, 40 - conical part, 41 - chuck, 42 - threaded steel bar. Detailed Embodiments

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Usually, the components of the embodiments of the present invention described and illustrated herein can be arranged and designed in various different configurations.

[0024] Accordingly, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0025] Embodiment 1:

[0026] This embodiment provides a pile head heating device, which includes a hot water bin 1 and a hot water source 2.

[0027] Among them, referring to Figure 1 , the hot water bin is arranged inside the pile head (the lower end of the hot melt pile 4) of the hot melt pile 4 to transfer the heat energy required to melt the frozen soil to the pile head of the hot melt pile 4.

[0028] The hot water source 2 is arranged outside the hot melt pile 4 and is used to supply hot water to the hot water bin 1 through a pipeline 3. Among them, the hot water source 2 includes a heating water tank 20 for heating water and a water pump 21 arranged on the pipeline 3; the heating water tank 20 can be an electric heating water tank or a water tank heated by fuel. The hot water tank 3 forms a circulation loop with the hot water bin 1 through the pipeline 3 to supply continuous hot water to the hot water bin 1. Among them, the transportation of hot water is driven by the water pump 21 arranged on the pipeline 3.

[0029] Referring to Figure 1 , the pipeline 3 extends from the top of the hot melt pile 4 into the hot melt pile and is connected to the hot water bin 1 on the lower side inside the pile, which is not easy to interfere with the pile driving operation of the hot melt pile.

[0030] Referring to Figure 2 , the pipeline 3 includes a water inlet pipe 30 and a water outlet pipe 31 connected to the inside of the hot water bin 1. Among them, a group of annular members 10 are arranged inside the hot water bin 1. The water inlet pipe 30 extends to the outside of one side of the annular member 10, and the water outlet pipe 31 extends to the outside of the other side of the annular member 10 opposite to the water inlet pipe 30. When the hot water enters and exits the hot water bin 1, it needs to flow around the arc-shaped outer wall of the annular member 10, increasing the flow area of the hot water in the hot water bin 1 and facilitating the uniform heating of the pile head.

[0031] In this embodiment, the annular member 10 is installed on the inner wall of the upper bottom end of the hot water bin 1, and the axis of the annular member 10 is coaxial with the axis of the hot melt pile 4; the water inlet pipe 30 and the water outlet pipe 31 penetrate downward along the top of the hot water bin 1 into the hot water bin 1; in addition, both the water inlet pipe 30 and the water outlet pipe 31 extend downward to the outside of the middle part of the annular member 10 in the axial direction, which is also convenient for the up and down flow intersection during the circular flow of hot water, making the hot water temperature uniform everywhere in the hot water bin 1.

[0032] Embodiment 2:

[0033] Referring toFigure 1 , this embodiment also provides a hot-melt pile 4, which has the pile head heating device as described above. Therefore, the hot-melt pile 4 is a steel pipe pile or a precast reinforced concrete pile.

[0034] Among them, when the hot-melt pile 4 is a steel pipe pile, the lower end of the hot-melt pile 4 has a steel conical part 40, and the hot water tank 1 is located inside the conical part 40; when the hot-melt pile 4 is a precast reinforced concrete pile, several circles of steel bars or steel plates are wrapped inside the pile head of the hot-melt pile 4 outside the hot water tank 1, which is beneficial to the heat conduction of the pile head.

[0035] In addition, in order to further improve the convenience of driving the hot-melt pile, referring to Figure 1 , in one embodiment, along the length direction of the hot-melt pile 4, several circles of threaded steel bars 42 are spirally arranged on the outer wall of the hot-melt pile 4. Among them, a chuck 41 is arranged at the top of the hot-melt pile 4 to clamp the hot-melt pile 4 and rotate it into the pile hole. The threaded steel bars 42 can clean the frozen soil on the inner wall of the pile hole, which is convenient for driving the pile, and can also trim the inner wall of the pile hole.

[0036] In order to facilitate the removal of the pipeline 3 from the pile after driving the pile, the lower end of the pipeline 3 and the top of the hot water tank 1 can be connected in a plug-and-play manner; in addition, in order to adapt to the rotary insertion of the hot-melt pile 4, in one embodiment, the pipeline 3 inside the pile and the pipeline 3 outside the pile can be connected through a movable joint at the top of the hot-melt pile 4.

[0037] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A pile head heating device, characterized in that, Comprising: A hot water storage chamber, which is arranged inside the pile head of the hot-melt pile to transfer the heat energy required to melt the frozen soil to the pile head of the hot-melt pile; And A hot water source, which is arranged outside the hot-melt pile. The hot water source and the hot water storage chamber form a circulation loop through a pipeline. Among them, the pipeline enters the hot-melt pile from the top of the hot-melt pile and is connected to the lower hot water storage chamber.

2. The pile head heating device according to claim 1, characterized in that, The pipeline includes a water inlet pipe and a water outlet pipe that are connected to the inside of the hot water storage chamber. Among them, a set of annular members are arranged inside the hot water storage chamber. The water inlet pipe extends to the outside of one side of the annular member, and the water outlet pipe extends to the outside of the other side of the annular member opposite to the water inlet pipe.

3. The pile head heating device according to claim 2, characterized in that, The annular member is installed on the inner wall of the upper and lower ends of the hot water storage chamber, and the axis of the annular member is coaxial with the axis of the hot-melt pile.

4. The pile head heating device according to claim 3, characterized in that, Both the water inlet pipe and the water outlet pipe extend downward to the outside of the middle part of the annular member in the axial direction.

5. The pile head heating device according to claim 1, characterized in that, The hot water source includes a heating water tank for heating water and a water pump arranged on the pipeline.

6. A hot-melt pile, characterized in that, The hot-melt pile has the pile head heating device described in any one of claims 1 to 5.

7. The hot-melt pile according to claim 6, characterized in that, The hot-melt pile is a steel pipe pile or a precast reinforced concrete pile.

8. The hot-melt pile according to claim 7, wherein When the hot-melt pile is a steel pipe pile, the lower end of the hot-melt pile has a tapered portion, and the hot water storage chamber is located inside the tapered portion.

9. The hot-melt pile according to claim 7, characterized in that, When the hot-melt pile is a precast reinforced concrete pile, several circles of steel bars / steel plates are wrapped inside the pile head of the hot-melt pile outside the hot water storage chamber for heat conduction.

10. The hot-melt pile according to claim 7, wherein, Along the length direction of the hot-melt pile, several circles of ribbed steel bars are spirally arranged on the outer wall of the hot-melt pile; a chuck is arranged at the top of the hot-melt pile to clamp the hot-melt pile and rotate it in the hot-melt pile hole.

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