Pile cap construction excavation foundation tool, tool using method and construction technology

Abstract

The invention relates to the technical field of pile cap construction, discloses a pile cap construction excavation foundation tool, a tool using method and a construction technology, and solves the technical problem of low pile cap construction efficiency. The lower side of the container is a working side, and the working side is provided with a container opening; the inner part wrapped by the container side wall is an accommodating space; the upper side of the container is a connecting side, and the container is fixed with the connecting piece from the connecting side; the positioning pin is located on the working side of the container, the positioning pin is vertically arranged, and the positioning pin is arranged at the center point of the container. According to the technical scheme, the important innovation of the pile cap construction process, the excavation speed based on the new tool and the installation speed of the prefabricated reinforcement cage can be matched with the concrete pouring speed, and therefore the overall pile cap construction speed is increased.

Description

Technical Field

[0001] The present invention relates to the technical field of pile cap construction, and more particularly to a foundation tool for pile cap construction excavation, a tool use method and a construction process. Background Art

[0002] Pipe piles are prestressed, high-strength concrete piles with circular or square box cross-sections, formed using centrifugal and prestressing processes. They offer high strength, durability, and rapid construction, making them widely used in foundation construction for building projects.

[0003] Pile cap construction refers to the process of pouring or installing a pile cap on top of the pile after the pile construction is complete. The pile cap is typically a cast-in-place reinforced concrete structure, but prefabricated structures can also be used. Its purpose is to evenly transfer the load of the superstructure to the pile through the pile cap while also protecting the pile head.

[0004] Pile cap foundation excavation involves excavating the foundation space where the pile cap is to be cast or installed. For many years, foundation excavation has been performed manually with an excavator, resulting in low construction efficiency and difficulty in effectively controlling foundation dimensions. Therefore, the present invention has developed a pile cap foundation excavation tool that significantly improves foundation excavation efficiency while also effectively controlling the excavated foundation dimensions. Summary of the Invention

[0005] The present invention aims to disclose and protect a foundation tool for pile cap construction excavation, a method for using the tool, and a construction process.

[0006] The present invention provides the following technical solutions:

[0007] A foundation excavation tool for pile cap construction, comprising:

[0008] containers, connectors, and dowel pins;

[0009] The lower side of the container is a working side, and the working side is provided with a container opening; the interior of the container surrounded by the side wall is a receiving space; the upper side of the container is a connecting side, and the container is fixed to the connecting piece from the connecting side;

[0010] The positioning pin is located on the working side of the container, and the positioning pin is vertically arranged. The positioning pin is arranged at the center point of the container.

[0011] Further: the connection side is configured in any of the following forms:

[0012] (1) Opening form;

[0013] (2) Opening installation horizontal bar form;

[0014] (3) Complete sealing form of installing sealing plate.

[0015] Further: a transverse partition plate and a longitudinal partition plate are provided in the container;

[0016] The transverse partition plate and the longitudinal partition plate intersect each other and are welded and fixed to the inner wall of the container.

[0017] Further: the transverse partition plate and the longitudinal partition plate intersect each other perpendicularly;

[0018] The bottom ends of the transverse partition plate and the longitudinal partition plate are aligned with the bottom end of the container;

[0019] The top ends of the transverse partition plate and the longitudinal partition plate are aligned with the top end of the container.

[0020] Furthermore: the connecting piece is welded and fixed to the top ends of the transverse partition plate and the longitudinal partition plate.

[0021] Furthermore: the connecting member includes a connecting plate and a connecting cylinder, the connecting plate is welded and fixed to the top of the transverse partition plate and the longitudinal partition plate, and the connecting cylinder is vertically fixed to the upper surface of the connecting plate;

[0022] The top end of the connecting cylinder is provided with a cylinder mouth, which is used to connect with the driving end of a power machine that provides excavation power.

[0023] Furthermore: a plurality of reinforcing fixing members are added around the connecting cylinder, one end of the reinforcing fixing member is fixed to the outer side wall of the connecting cylinder, and the other end of the reinforcing fixing member is fixed to the connecting plate.

[0024] Furthermore: the positioning pin is configured as a rod, and the positioning pin and the connecting cylinder are coaxially arranged.

[0025] A method for using a foundation excavation tool for pile cap construction comprises the following steps:

[0026] Tooling installation;

[0027] Arrival at the target area;

[0028] Foundation excavation positioning;

[0029] foundation excavation;

[0030] soil transfer;

[0031] Unloading;

[0032] Carry out foundation excavation work in a cycle.

[0033] A construction process for excavating a foundation for pile cap construction comprises the following steps:

[0034] Use the aforementioned tooling method to excavate the pile cap foundation;

[0035] laying steel reinforcement in the excavated foundation;

[0036] pouring concrete in the excavated foundation;

[0037] Concrete curing.

[0038] In summary, the present invention has the following beneficial effects:

[0039] (1) The important innovation of the pile cap construction process of the present invention is that the excavation speed of the new tooling and the installation speed of the prefabricated steel cage can match the speed of concrete pouring, thereby achieving an increase in the overall speed of pile cap construction;

[0040] (2) The present invention develops a foundation excavation tool for pile cap construction, which can greatly improve the foundation excavation efficiency and effectively control the excavated foundation size. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction is given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0042] Figure 1 This is a schematic diagram of the three-dimensional structure of the foundation excavation tooling for pile cap construction;

[0043] Figure 2 This is a schematic diagram of the split structure of the three-dimensional structure of the foundation tooling for pile cap construction;

[0044] Figure 3 Flowchart of the method of using the foundation tooling for pile cap construction excavation;

[0045] Figure 4 Construction process flow chart for excavating foundation for pile cap construction. DETAILED DESCRIPTION

[0046] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0047] A pile cap construction excavation foundation tool, combined with Figure 1-Figure 2As shown, it includes a container 1, a connecting piece 2 and a positioning pin 3.

[0048] The lower side of the container 1 is the working side, and the working side is provided with a container opening 11; the internal space wrapped by the side wall of the container 1 is a holding space 12 for holding soil (excavated during the foundation excavation process); the upper side of the container 1 is the connecting side, and the container 1 is fixed to the connecting piece 2 from the connecting side. The connecting side can be configured as an opening form, a horizontal bar form or a sealing plate, and can be set according to needs, especially it needs to be set to a structural form that facilitates the fixing of the connecting side and the connecting piece 2 to each other.

[0049] In this embodiment, a transverse partition 12 and a longitudinal partition 13 are provided within the container 1. These partitions intersect perpendicularly and are welded to the inner sidewalls of the container 1. The bottoms of the transverse and longitudinal partitions 12, 13 align with the bottom of the container 1, while their tops align with the top of the container 1. Due to the presence of the transverse and longitudinal partitions 12, 13, the connection side is open in this embodiment, allowing the connector 2 to be secured to the tops of the transverse and longitudinal partitions 12, 13.

[0050] The shape of the container 1 is set accordingly according to the preset shape of the pile cap. In this embodiment, the pile cap is set to be a square pile cap, so the container 1 is also configured to be a square shape. Of course, in other embodiments, the pile cap and the container 1 can be set to other shapes.

[0051] The connector 2 is used to connect the container 1 to a power machine that can provide excavation power. In this embodiment, the connector 2 includes a connecting plate 21 and a connecting cylinder 22. The connecting plate 21 is welded to the top of the transverse partition plate 12 and the longitudinal partition plate 13, and the connecting cylinder 22 is vertically fixed to the upper surface of the connecting plate 21.

[0052] In order to improve the firmness of the connection cylinder 22 on the connection plate 21 , a plurality of reinforcing fixings 23 are added around the connection cylinder 22 , one end of the reinforcing fixing 23 is fixed to the connection cylinder 22 , and the other end of the reinforcing fixing 23 is fixed to the connection plate 21 .

[0053] The top end of the connecting cylinder 22 has a cylinder mouth, which is used to connect to the driving end of a power machine that provides excavation power, such as by welding.

[0054] The positioning pin 3 is located on the working side of the container 1. The positioning pin 3 is configured in a rod shape and is vertically arranged. Preferably, the positioning pin 3 is arranged at the center point of the container 1. More preferably, the positioning pin 3 and the connecting cylinder 22 are coaxially arranged. The function of the positioning pin 3 is to provide position positioning when performing foundation excavation. When performing foundation excavation work, if the positioning pin 3 is not configured, the container 1 cannot align its center point with the pipe pile. If the positioning pin 3 is configured at the center point of the working side of the container 1, the positioning pin 3 is aligned and inserted into the pipe pile, and the position of the excavated foundation is the accurate position.

[0055] The positioning pin 3 in the present invention not only serves as a positioning function, but also assists in unloading the soil in the container 1 after it is filled with soil. The soil in the container 1 relies on the friction between the soil and the inner wall of the container 1 to prevent the soil from falling off under the action of its own gravity, so that the soil in the container 1 can be transferred to a pre-set specific area position and unloaded. However, due to the friction between the soil and the inner wall of the container 1, when the container 1 reaches the specific area, it is difficult for the soil to fall off naturally from the container 1. At this time, the lower end of the positioning pin 3 can be pressed against the ground in the specific area, and then the power machine can be used to gently lift the container 1, and then gently lower the container 1, so that the lower end of the positioning pin 3 can be gently hit on the ground. Due to the large reverse acceleration of hitting the ground, the soil in the container 1 falls off from the container 1 due to inertia, which makes it easier to unload the soil.

[0056] Regarding the installation of the positioning pin 3, the positioning pin 3 can be fixed to the container 1, for example, to the transverse partition plate 12 and the longitudinal partition plate 13, or the positioning pin 3 can be fixed to the connecting member 2, for example, to the lower surface of the connecting plate 21. In this embodiment, the positioning pin 3 is welded to the lower surface of the connecting plate 21, but a removable fixing method with a bolt structure can also be used.

[0057] Based on the above pile cap construction excavation foundation tooling, combined with Figure 3 As shown, this specification also discloses a method for using a foundation excavation tool for pile cap construction (i.e., a new foundation excavation method), which includes the following steps:

[0058] S1. Tooling installation;

[0059] The tooling is fixed to the driving end of the power machinery with the working side facing downward. In this embodiment, the tooling is connected to the driving end of the power machinery through the connecting cylinder 22 of its connecting member 2. The power machinery of this embodiment is a crawler drilling machine. Specifically, the crawler drilling machine has a drill bit. The drill bit is inserted into the barrel opening at the top of the connecting barrel 22, and then welded and fixed so that the drill bit is firmly fixed in the barrel opening at the top of the connecting barrel 22 and is not easy to fall off.

[0060] S2, arrive at the target area;

[0061] The power machine (equipped with tooling) is controlled to move to the target area, which is the area where the pile cap foundation is to be excavated. Since the power machine in this embodiment is a crawler drill in the prior art, the drill can be manually driven to the area where the pile cap foundation is to be excavated.

[0062] S3, foundation excavation and positioning;

[0063] Operate the power machinery so that the positioning pin 3 of the tooling is aligned with the pipe pile and prepare for excavation.

[0064] S4, foundation excavation;

[0065] Operate the power machinery so that the positioning pin 3 of the tooling is inserted vertically downward into the pipe pile. After the pipe pile is inserted to a certain depth, the opening of the container in the tooling begins to gradually contact the ground until the opening of the container is pressed below the ground surface. Continue to press down until the upper surface of the container is flush with the ground surface, and stop pressing down to excavate.

[0066] S5, soil transfer;

[0067] Operate the power machinery to move vertically upward to pull out the tooling from the ground. At this time, the tooling is filled with soil. The soil will not fall due to the friction between it and the container 1, the horizontal partition 12 and the longitudinal partition 13. Then operate the power machinery again to move the soil in the tooling to the target unloading area.

[0068] S6, unloading;

[0069] Control the power machine so that the bottom end of the tooling's positioning pin 3 contacts the ground. Then, gently lift container 1 and then gently lower it so that the bottom end of the positioning pin 3 gently hits the ground. Due to the large reverse acceleration at the moment of hitting the ground, the soil in container 1 falls out of container 1 due to inertia, making it easier to unload the soil. Then, repeat steps S2-S6 to carry out the foundation excavation cycle.

[0070] Based on the above method for using the tooling for pile cap construction and excavation of foundation (i.e., a new method for excavating foundation), the present invention further discloses a pile cap construction process, which is applied with the above method for using the tooling.

[0071] A pile cap construction process, combined with Figure 4 As shown, the following steps are included:

[0072] S100. Excavate the pile cap foundation using the aforementioned tooling method.

[0073] The aforementioned tooling is used to carry out pile cap foundation excavation in succession.

[0074] S200. Lay steel bars in the excavated foundation.

[0075] Rebar is laid in the excavated pile cap foundation. Specifically, while excavating the foundation for the other pile caps, rebar is laid in the excavated pile cap foundation. The rebar can be a prefabricated rebar cage or a rebar cage installed on-site. Preferably, the rebar is a prefabricated rebar cage.

[0076] S300. Pour concrete in the excavated foundation.

[0077] Concrete is poured into the pile cap foundation where the reinforcement cage has been laid. Specifically, while pouring concrete into the pipe pile foundation where the reinforcement cage has been laid, the foundations for the other pipe pile caps are excavated and reinforcement is laid in the excavated pile cap foundations.

[0078] This is an important innovation in the pile cap construction process of the present invention. The innovation is not reflected in simultaneous operations, but is based on the excavation speed of the new tooling and the installation speed of the prefabricated steel cage. The two can match the speed of concrete pouring, thereby achieving an increase in the speed of overall pile cap construction.

[0079] The reason is that, in the existing technology, the time required for pouring concrete is relatively short, while the time required for excavating the foundation and installing the steel cage on site in the foundation is relatively long. Although the three can be constructed simultaneously, the latter two operations take a long time and cannot match the speed of concrete pouring. Therefore, the overall pile cap construction is slow and the construction period is long.

[0080] S400, concrete curing.

[0081] In terms of work efficiency, the comparison of the two excavation methods is as follows:

[0082] 1. The pile cap foundation adopts manual excavation combined with mechanical excavation, with a construction progress of about 80 pieces per day, and the square fixed mold construction progress of about 320 pieces per day, which greatly improves the construction speed and significantly reduces the construction cost;

[0083] 2. Pile cap construction uses manual excavation, and the quality of foundation construction cannot be guaranteed. Situations such as size not meeting requirements, insufficient foundation depth, and collapse often occur. The excavated foundation uses a fixed mold of 1200×1200×300mm or 1400×1400×300mm, which is uniform in size and the quality of foundation construction is guaranteed.

[0084] Compare Projects After use Before use in conclusion quality The foundation is excavated quickly, meeting the design requirements and formed in one go Does not meet the design requirements, multiple mechanical corrections One-time molding, size meets design requirements labor force No need for manual trimming, one-time forming Manual finishing is required after excavation is completed Save labor and time efficiency High efficiency Low efficiency High efficiency Cost comparison 80 pieces / day 320 per day Reduces waste of human resources, increases excavation efficiency, and improves overall pile cap construction efficiency

[0085] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, various improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A foundation tool for pile cap construction excavation, characterized in that: include: containers, connectors, and dowel pins; The lower side of the container is a working side, and the working side is provided with a container opening; the interior of the container surrounded by the side wall is a receiving space; the upper side of the container is a connecting side, and the container is fixed to the connecting piece from the connecting side; The positioning pin is located on the working side of the container, and the positioning pin is vertically arranged. The positioning pin is arranged at the center point of the container.

2. The basic tooling according to claim 1, characterized in that: The connection side configuration is any of the following: (1) Opening form; (2) Opening installation horizontal bar form; (3) Complete sealing form of installing sealing plate.

3. The basic tooling according to claim 1, characterized in that: The container is provided with a transverse partition plate and a longitudinal partition plate; The transverse partition plate and the longitudinal partition plate intersect each other and are welded and fixed to the inner wall of the container.

4. The basic tooling according to claim 3, characterized in that: The transverse partition plates and the longitudinal partition plates intersect each other perpendicularly; The bottom ends of the transverse partition plate and the longitudinal partition plate are aligned with the bottom end of the container; The top ends of the transverse partition plate and the longitudinal partition plate are aligned with the top end of the container.

5. The basic tooling according to claim 3 or 4, characterized in that: The connecting piece is welded and fixed to the top ends of the transverse partition plate and the longitudinal partition plate.

6. The reaction container according to claim 3 or 4, characterized in that The connecting member includes a connecting plate and a connecting cylinder, wherein the connecting plate is welded and fixed to the top of the transverse partition plate and the longitudinal partition plate, and the connecting cylinder is vertically fixed to the upper surface of the connecting plate; The top end of the connecting cylinder is provided with a cylinder mouth, which is used to connect with the driving end of a power machine that provides excavation power.

7. The reaction container according to claim 6, characterized in that A plurality of reinforcing fixing members are added to the peripheral side of the connecting cylinder, one end of the reinforcing fixing member is fixed to the outer side wall of the connecting cylinder, and the other end of the reinforcing fixing member is fixed to the connecting plate.

8. The reaction container according to claim 1, characterized in that The positioning pin is configured in a rod shape, and the positioning pin and the connecting cylinder are coaxially arranged.

9. A method for using a foundation tool for pile cap construction excavation, characterized in that: The following steps are involved: Tooling installation; Arrival at the target area; Foundation excavation positioning; foundation excavation; soil transfer; Unloading; Carry out foundation excavation work in a cycle.

10. A construction process for excavation foundation of pile cap construction, characterized in that: The following steps are involved: Use the aforementioned tooling method to excavate the pile cap foundation; laying steel reinforcement in the excavated foundation; pouring concrete in the excavated foundation; Concrete curing.

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