Construction equipment based on ultra-deep and ultra-large impact cast-in-situ bored pile
By introducing mud circulation system and high-pressure mud technology into impact drilling pile construction equipment, the problem of low construction efficiency of traditional equipment in harder soil layers or rocks is solved, and more efficient construction and a wider range of applications are achieved.
Patent Information
- Application Number
- CN202421444751.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-24
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-06-24
AI Technical Summary
When traditional impact drilling cast-in piles encounter harder soil layers or rocks, the construction efficiency decreases, and the equipment size and construction site environment limit their application range.
A construction equipment based on ultra-deep and large impact drilling piles was designed. The mud circulation system was used to increase the potential energy of the mud through the circulation drive parts to form high-pressure mud. The high-pressure mud was used to accelerate the drop of the hammer, increase the penetration speed, and withdraw mud and gravel through reverse circulation.
Without increasing the height of the winch, the construction efficiency of impact drilling cast piles is significantly improved, the application range is expanded, the construction time is shortened, and the problem of poor water-stop effect of cast piles is avoided.
Smart Images
Figure CN222558491U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of building foundation engineering, in particular to a construction device based on ultra-deep and ultra-large impact bored piles. Background Art
[0002] With the acceleration of urbanization and the development of the real estate industry, the demand for stable and reliable building construction is increasing. As an effective foundation treatment method, impact bored piles are widely used in various construction projects. Impact bored piles are generally raised by a winch, and the rock layer is cut by the impact and vibration of the free fall of the hammer. The hammer is repeatedly penetrated into the ground or rock to gradually form a hole of the required diameter and depth. After the drilling is completed, it is necessary to remove debris such as rock chips and mud in the hole to ensure the cleanliness of the hole; then enter the pouring stage and curing stage, and finally form a solid column body to support the weight of the building or other engineering structure.
[0003] The impact force of the hammer of traditional impact bored piles is usually limited by the height of the winch. When encountering hard soil or rock, the number of hammer penetrations needs to be increased, which leads to a decrease in overall construction efficiency. In addition, due to the size of the equipment and the construction site environment, the traditional impact bored piles are limited in their application scenarios and cannot increase the height of the winch, which affects the construction efficiency. Utility Model Content
[0004] The purpose of the utility model is to provide a construction device based on ultra-deep and ultra-large impact bored piles, which can effectively improve the construction efficiency of the impact bored piles and expand their application range without increasing the height of the winch.
[0005] To achieve this purpose, the utility model adopts the following technical solutions:
[0006] The construction equipment based on the ultra-deep and ultra-large impact bored piles includes a winch and a mud pool, wherein the construction equipment based on the ultra-deep and ultra-large impact bored piles also includes:
[0007] A hammer, the hammer is connected to the wire rope of the winch, a mud inlet and at least one mud flushing port are provided on the top of the hammer, and the mud inlet and the mud flushing port are connected through a flow channel provided in the hammer;
[0008] A mud circulation system, the mud circulation system includes a pipeline, a circulation drive member is provided on the pipeline, a first end of the pipeline is connected to the mud pool, and a second end of the pipeline is connected to the mud inlet of the hammer, and the circulation drive member drives the mud to reciprocate between the hammer and the mud pool through the pipeline.
[0009] Furthermore, the pipeline includes a first mud pipe and a second mud pipe; the first end of the first mud pipe is connected to the mud pool, and the second end of the first mud pipe is connected to the circulation drive member; the first end of the second mud pipe is connected to the circulation drive member, and the second end of the second mud pipe is connected to the mud inlet of the hammer.
[0010] Furthermore, the second end of the pipe is fixedly connected to the hammer.
[0011] Furthermore, the pipeline also includes a third mud pipe, a fourth mud pipe, a first three-way valve, a second three-way valve and a third three-way valve; the first three-way valve is arranged on the first mud pipe, and the second three-way valve is arranged on the second mud pipe; the first end of the third mud pipe is connected to the first three-way valve, and the second end of the third mud pipe is connected to the second three-way valve; the third three-way valve is arranged on the second mud pipe and is located on the side of the second three-way valve close to the circulation drive member, the first end of the fourth mud pipe is connected to the mud pool, and the second end of the fourth mud pipe is connected to the third three-way valve.
[0012] Further, the first three-way valve, the second three-way valve and the third three-way valve are all electric three-way valves or pneumatic three-way valves.
[0013] Furthermore, the controller of the winch, the first three-way valve, the second three-way valve and the third three-way valve are communicatively connected.
[0014] Furthermore, a filter is arranged inside the mud pool, the first end of the first mud pipe is located on the upper side of the filter, and the first end of the fourth mud pipe is located on the lower side of the filter.
[0015] Furthermore, the mud pool is provided with an openable and closable cover.
[0016] Furthermore, an observation hole is provided on the cover plate.
[0017] Furthermore, the mud flushing openings are provided in plurality, and the plurality of mud flushing openings are symmetrically arranged around the center of the top of the hammer.
[0018] Beneficial effects of the utility model:
[0019] The construction equipment based on ultra-deep and ultra-large impact bored piles includes a winch, a hammer, a mud circulation system and a mud pool, wherein a mud inlet and at least one mud flushing port are opened on the top of the hammer, and the mud inlet and the mud flushing port are connected through a flow channel arranged in the hammer; the mud circulation system includes a pipeline, and a circulation drive member is arranged on the pipeline, the first end of the pipeline is connected to the mud pool, and the second end of the pipeline is connected to the mud inlet of the hammer, wherein the circulation drive member can drive the mud to repeatedly flow between the hammer and the mud pool through the pipeline to form Forward and reverse circulation of mud; in addition, the circulation drive can increase the potential energy of the mud to form high-pressure mud; when the construction equipment is in forward circulation, the high-pressure mud enters the hammer through the mud inlet and is ejected from the mud outlet. Since the mud outlet is set at the top of the hammer, the high-pressure mud ejected from the mud outlet applies a downward impact force to the hammer, speeding up the falling speed of the hammer and helping the hammer to penetrate the formation more quickly; by adjusting the circulation drive, the falling speed of the hammer can be controlled without being restricted by the height of the winch. When the hammer penetrates the preset drilling position, the mud and gravel inside the drilling position are pumped back into the mud pool through reverse circulation. Since both the forward circulation and the reverse circulation are the same mud circulation system, the operator only needs to set up one mud circulation system to realize the injection of mud and the extraction of mud and gravel, which not only occupies a small space but also improves work efficiency. Therefore, the construction equipment can effectively improve construction efficiency, shorten construction time, and is suitable for a wider range of construction scenarios without being restricted by on-site construction equipment, construction scenarios and construction environment. Since the construction time is shortened, the problem of poor water-stopping effect of cast-in-place piles caused by the construction period can be avoided. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a structural schematic diagram of the utility model based on the construction equipment of ultra-deep and ultra-large impact bored piles;
[0021] Figure 2 It is a structural schematic diagram of the mud pool of the utility model.
[0022] In the figure:
[0023] 1. Winch; 11. Wire rope;
[0024] 2. Mud pool; 21. Filter element; 22. Cover plate;
[0025] 3. Punch hammer; 31. Mud flushing mouth;
[0026] 41. first mud pipe; 42. second mud pipe; 43. third mud pipe; 44. fourth mud pipe;
[0027] 45. First three-way valve; 46. Second three-way valve; 47. Third three-way valve;
[0028] 5. Circulation drive parts;
[0029] 6. Controller. DETAILED DESCRIPTION
[0030] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.
[0031] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0032] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.
[0033] In the description of this embodiment, the terms "upper", "lower", "left", "right", etc., and the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of description and simplified operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.
[0034] Please refer to Figure 1-Figure 2As shown, the present application provides a construction equipment based on ultra-deep and ultra-large impact bored piles, which can effectively improve the construction efficiency of impact bored piles and expand their application scope without raising the height of the winch 1. The construction equipment includes a winch 1, a hammer 3, a mud circulation system and a mud pool 2; the hammer 3 is connected to the wire rope 11 of the winch 1, and a mud inlet and at least one mud flushing port 31 are provided on the top of the hammer 3, wherein the mud inlet and the mud flushing port 31 are connected through a flow channel provided in the hammer 3; the mud circulation system includes a pipeline, and a circulation drive member 5 is provided on the pipeline, the first end of the pipeline is connected to the mud pool 2, and the second end of the pipeline is connected to the mud inlet of the hammer 3, and the circulation drive member 5 drives the mud to reciprocate between the hammer 3 and the mud pool 2 through the pipeline, so as to realize the forward circulation and reverse circulation of the mud of the construction equipment; when the mud is circulating forward, the mud enters the mud pool 2 through the first end of the pipeline. The circulation drive member 5 can increase the potential energy of the mud and make the mud form high-pressure mud. At this time, since the second end of the pipeline is connected with the mud inlet of the hammer 3, the high-pressure mud can penetrate into the hammer 3 through the mud inlet. Since the mud inlet is connected with the mud flushing port 31 through the flow channel arranged in the hammer 3, the high-pressure mud entering the inside of the hammer 3 can be sprayed out from the mud flushing port 31 through the flow channel; since the mud flushing port 31 is arranged at the top of the hammer 3, the high-pressure mud sprayed from the mud flushing port 31 applies a downward impact force to the hammer 3, accelerates the falling speed of the hammer 3, and helps the hammer 3 to penetrate the formation more quickly, thereby increasing the impact force of the hammer 3 without being restricted by the height of the winch 1, greatly improving the construction efficiency.
[0035] It is understandable that the operator can adjust the potential energy of the mud flowing through the circulation drive 5 to reasonably adjust the falling speed of the hammer 3 according to the actual construction environment. In the current embodiment, the circulation drive 5 can be but not limited to a high-pressure pump.
[0036] When the hammer 3 penetrates the preset drilling position, the mud and gravel inside the drilling position are pumped back into the mud pool 2 through the reverse circulation of the circulation drive 5. The mud and gravel enter through the mud flushing port 31, and return to the mud pool 2 through the flow channel and the mud inlet in turn; since the forward circulation and the reverse circulation are the same mud circulation system, the operator only needs to set up a mud circulation system to achieve the injection of mud and the extraction of mud and gravel, which not only takes up a small space, but also improves work efficiency. Therefore, the construction equipment can effectively improve construction efficiency, shorten construction time, and is suitable for a wider range of construction scenes. It does not need to be restricted by on-site construction equipment, construction scenes and construction environment. Since the construction time is shortened, it can avoid the problem of poor water-stopping effect of cast-in-place piles due to excessively long construction period.
[0037] In some embodiments, multiple mud flushing openings 31 can be set, and the multiple mud flushing openings 31 are symmetrically arranged around the center of the top of the hammer 3; the symmetrical arrangement of multiple mud flushing openings 31 can make the impact force of the mud evenly distributed on the hammer 3, and can effectively avoid the concentrated impact force in a single direction, so that the hammer 3 is not easy to tilt or shift during operation, thereby reducing the imbalance phenomenon of the hammer 3 during operation, maintaining the stability and working efficiency of the hammer 3, and improving the accuracy of the operation.
[0038] In some embodiments, the first end of the pipe is fixedly connected to the hammer 3. The fixed connection design can enhance the stability of the connection between the hammer 3 and the pipe, and prevent the two from loosening or detaching during high-intensity impact and vibration. This not only improves the overall stability and reliability of the system, but also reduces the downtime and maintenance costs caused by loose connections.
[0039] like Figure 1 As shown, in some embodiments, the pipeline includes a first mud pipe 41 and a second mud pipe 42; the first end of the first mud pipe 41 is connected to the mud pool 2, and the second end of the first mud pipe 41 is connected to the circulation drive 5; the first end of the second mud pipe 42 is connected to the circulation drive 5, and the second end of the second mud pipe 42 is connected to the mud inlet of the hammer 3. When the mud circulates forward, the mud enters from the mud pool 2 through the first end of the first mud pipe 41, and then the mud flows through the circulation drive 5 through the second end of the first mud pipe 41, and then enters the second mud pipe 42 from the first end of the second mud pipe 42, and enters the hammer 3 through the second end of the second mud pipe 42; when the reverse circulation occurs, the mud and gravel return along the above path. The above design can realize a mud circulation system with forward circulation and reverse circulation through only one pipeline line, and has a compact structure, and no independent mud injection pipeline and mud extraction pipeline need to be designed, which can save space and improve circulation efficiency.
[0040] Furthermore, the pipeline also includes a third mud pipe 43, a fourth mud pipe 44, a first three-way valve 45, a second three-way valve 46 and a third three-way valve 47; the first three-way valve 45 is arranged on the first mud pipe 41, and the second three-way valve 46 is arranged on the second mud pipe 42; the first end of the third mud pipe 43 is connected to the first three-way valve 45, and the second end of the third mud pipe 43 is connected to the second three-way valve 46; the third three-way valve 47 is arranged on the second mud pipe and is located between the second three-way valve 46 and the circulation drive 5, the first end of the fourth mud pipe 44 is connected to the mud pool 2, and the second end of the fourth mud pipe 44 is connected to the third three-way valve 47. Through the above-mentioned pipeline design, when the mud enters the hammer 3 from the mud pool 2 in the forward circulation, the directions of the first three-way valve 45, the third three-way valve 47, and the second three-way valve 46 are adjusted so that the mud enters through the first mud pipe 41, flows through the circulation drive member 5, and directly enters the hammer 3 through the second mud pipe 42; when the mud and gravel return from the hammer 3 to the mud pool 2 in the reverse circulation, the directions of the first three-way valve 45, the third three-way valve 47, and the second three-way valve 46 are adjusted so that the mud and gravel enter through the second mud pipe 42, flow through the third mud pipe 43, and then pass through the circulation drive member 5, and then the mud and gravel enter the second mud pipe 42 again, and enter the mud pool 2 through the fourth mud pipe 44. Therefore, the flow direction of the mud can be flexibly controlled by adjusting the directions of the first three-way valve 45, the third three-way valve 47, and the second three-way valve 46. By simply adjusting the switching state of the three-way valve, the flow direction of the mud can be quickly switched to adapt to different working conditions and operation modes. At the same time, the three-way valve can also avoid potential overpressure or blockage problems of the mud, thereby improving work safety and efficiency.
[0041] In other embodiments, the first three-way valve 45, the second three-way valve 46 and the third three-way valve 47 are all electric three-way valves or pneumatic three-way valves, and the electric three-way valves or pneumatic three-way valves can be used to accurately control the opening and closing of the valves, thereby improving the corresponding speed of the valves. Further, the controller of the winch 1, the first three-way valve 45, the second three-way valve 46 and the third three-way valve 47 are connected by communication through the controller 6, so as to realize the automatic control of the mud circulation process, that is, to automatically control the opening and closing states of the first three-way valve 45, the second three-way valve 46 and the third three-way valve 47, without manual intervention, thereby reducing the error and workload of manual operation. At the same time, the communication connection can monitor the operating state of the equipment in real time, including parameters such as pressure, flow, and mud level. When abnormal conditions such as blockage occur, the controller 6 can promptly feed back the abnormal data to the operator, so that the operator can react quickly, and the controller 6 can automatically adjust the states of the first three-way valve 45, the second three-way valve 46 and the third three-way valve 47 to prevent the occurrence of safety accidents such as system overpressure and leakage. It should be noted that the controller 6 can be, but is not limited to, STM32.
[0042] like Figure 2As shown, in some embodiments, a filter 21 is provided inside the mud pool 2, the first end of the first mud pipe 41 is located above the filter 21, and the first end of the fourth mud pipe 44 is located below the filter 21. When the mud is circulated in the forward direction, the first end of the first mud pipe 41 is located above the filter 21, and the mud passes through the filter 21 before entering the first mud pipe 41, which can effectively intercept gravel and other impurities in the mud, ensure the purity of the mud entering the first mud pipe 41, and improve the efficiency and quality of the impact drilling and grouting operation. When the mud is circulated in the reverse direction, the reversely flowing mud and gravel return to the mud pool 2 through the fourth mud pipe 44. Since the first end of the fourth mud pipe 44 is located below the filter, the returned mud and gravel can be filtered by the filter 21 and can be repeatedly used in the forward circulation through the first mud pipe 41. Exemplarily, the filter 21 is a filter plate or a filter mesh.
[0043] In some embodiments, the mud pool 2 is provided with an openable cover plate 22, wherein when a certain amount of large-grained gravel is returned to the mud pool 2, it can be salvaged by opening and closing the cover plate 22, and when the mud is insufficient, fresh mud can be added to the mud pool 2 through the cover plate 22. Optionally, the mud pool 2 is designed in the form of a step, and the openable cover plate 22 is arranged below the filter element 21, so that large-grained gravel can be easily salvaged. Furthermore, an observation hole is provided on the cover plate 22, so that the operator does not need to frequently open the cover plate 22, and can observe the situation in the mud pool 2 at any time through the observation hole.
[0044] The following describes in detail the construction process of the construction equipment based on the ultra-deep and ultra-large impact bored piles provided in this embodiment:
[0045] First, a winch 1 and a mud pool 2 are arranged around the pre-drilled hole, wherein a hammer 3 is connected to a steel wire rope 11 of the winch 1, a mud inlet and at least one mud flushing port 31 are provided on the top of the hammer 3, and the mud inlet and the mud flushing port 31 are connected through a flow channel in the hammer 3;
[0046] Secondly, a mud circulation system is constructed, the first end of the pipeline is connected to the mud pool 2, a circulation drive member 5 is arranged on the pipeline, and the second end of the pipeline is connected to the mud inlet on the hammer 3;
[0047] After that, the mud circulation system is started to perform forward circulation, and the mud enters the circulation drive member 5 from the mud pool 2 through the first end of the pipeline, is converted into high-pressure mud through the circulation drive member 5, penetrates into the hammer 3 through the second end of the pipeline, and is ejected through the mud flushing port 31, so that the hammer 3 is accelerated to fall and penetrate the formation;
[0048] Then, after the hammer 3 penetrates the preset drilling position, the mud circulation system performs reverse circulation. During the reverse circulation, the hammer 3 does not move, and the mud and gravel inside the preset hole are pumped back into the mud pool 2. The mud and gravel enter the flow channel through the mud flushing port 31, and then the mud is imported into the circulation drive member 5 and finally enters the mud pool 2.
[0049] Finally, the forward and reverse circulation of the above mud circulation system is repeated multiple times until the planned drilling construction is completed.
[0050] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.
Claims
1. A construction device based on ultra-deep and ultra-large impact bored piles, comprising a winch (1) and a mud pool (2), characterized in that: The construction equipment based on the ultra-deep and ultra-large impact bored piles also includes: A hammer (3), the hammer (3) being connected to the steel wire rope (11) of the winch (1), the top of the hammer (3) being provided with a mud inlet and at least one mud flushing port (31), the mud inlet being connected to the mud flushing port (31) via a flow channel provided in the hammer (3); A mud circulation system, the mud circulation system comprising a pipeline, a circulation drive member (5) being arranged on the pipeline, the first end of the pipeline being connected to the mud pool (2), the second end of the pipeline being connected to the mud inlet of the hammer (3), the circulation drive member (5) driving the mud to reciprocate between the hammer (3) and the mud pool (2) through the pipeline.
2. The construction equipment based on ultra-deep and ultra-large impact bored piles according to claim 1 is characterized in that: The pipeline comprises a first mud pipe (41) and a second mud pipe (42); the first end of the first mud pipe (41) is connected to the mud pool (2), and the second end of the first mud pipe (41) is connected to the circulation drive member (5); the first end of the second mud pipe (42) is connected to the circulation drive member (5), and the second end of the second mud pipe (42) is connected to the mud inlet of the hammer (3).
3. The construction equipment based on ultra-deep and ultra-large impact bored piles according to claim 2 is characterized in that: The second end of the second mud pipe (42) is fixedly connected to the hammer (3).
4. The construction equipment based on ultra-deep and ultra-large impact bored piles according to claim 2 is characterized in that: The pipeline also includes a third mud pipe (43), a fourth mud pipe (44), a first three-way valve (45), a second three-way valve (46) and a third three-way valve (47); the first three-way valve (45) is arranged on the first mud pipe (41), and the second three-way valve (46) is arranged on the second mud pipe (42); the first end of the third mud pipe (43) is connected to the first three-way valve (45), and the second end of the third mud pipe (43) is connected to the second three-way valve (46); the third three-way valve (47) is arranged on the second mud pipe and is located on the side of the second three-way valve (46) close to the circulation drive member (5); the first end of the fourth mud pipe (44) is connected to the mud pool (2), and the second end of the fourth mud pipe (44) is connected to the third three-way valve (47).
5. The construction equipment based on ultra-deep and ultra-large impact bored piles according to claim 4 is characterized in that: The first three-way valve (45), the second three-way valve (46) and the third three-way valve (47) are all electric three-way valves or pneumatic three-way valves.
6. The construction equipment based on ultra-deep and ultra-large impact bored piles according to claim 5 is characterized in that: The controller of the hoist (1), the first three-way valve (45), the second three-way valve (46) and the third three-way valve (47) are communicatively connected.
7. The construction equipment based on ultra-deep and ultra-large impact bored piles according to claim 4 is characterized in that: A filter element (21) is arranged inside the mud pool (2), a first end of the first mud pipe (41) is located on the upper side of the filter element (21), and a first end of the fourth mud pipe (44) is located on the lower side of the filter element (21).
8. The construction equipment based on ultra-deep and ultra-large impact bored piles according to claim 5 is characterized in that: The mud pool (2) is provided with an openable and closable cover plate (22).
9. The construction equipment based on ultra-deep and ultra-large impact bored piles according to claim 8, characterized in that: The cover plate (22) is provided with an observation hole.
10. The construction equipment based on ultra-deep and ultra-large impact bored piles according to any one of claims 1 to 9, characterized in that: A plurality of the mud flushing openings (31) are provided, and the plurality of mud flushing openings (31) are symmetrically arranged around the center of the top of the hammer (3).