Steel pipe pile group supporting device

Abstract

The utility model relates to a steel pipe pile group supporting device which comprises a steel pipe pile group, a plurality of disc buckle type profile steel top beams and a plurality of profile steel connecting rods. The steel pipe pile group comprises a plurality of steel pipe piles arranged close to the lower end of the sliding bed in an array manner; the disc buckle type profile steel top beams are installed at the upper ends of the steel pipe piles in a one-to-one correspondence mode, and the profile steel connecting rods are connected with the two adjacent disc buckle type profile steel top beams. The plate buckle type profile steel beams are adopted to effectively connect the micro steel pipe pile groups, the plate buckle type profile steel top beam is of a statically indeterminate structure and has large rigidity and good stability, in the profile steel top beam construction process, the processes of formwork erecting, steel bar binding, concrete pouring, age waiting and the like are not needed, installation and operation are easy, the construction speed is greatly increased, and the construction cost is reduced. And the crown beam profile steel can be recycled, so that the construction efficiency is improved, the cost is reduced, and meanwhile, the risk coefficient faced by constructors in an understable slope body area is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of landslide treatment engineering, in particular to a steel pipe pile group supporting device. Background Art

[0002] Landslides are one of the main types of new geological disasters every year, among which accumulation layer landslides are the most common. Accumulation layer landslides are often characterized by wide distribution, high frequency of occurrence, and high continuous harm, which brings huge challenges to regional geological disaster prevention and control work. Compared with traditional landslide treatment technical means, micro steel pipe pile technology has significant advantages such as flexible and convenient construction, short construction period, low cost and small impact on the environment, and is widely used in small and medium-sized landslide treatment. However, in conventional micro steel pipe pile design schemes, reinforced concrete crown beams are usually used to connect micro steel pipe pile groups. There are defects such as long construction period and difficult recovery of support materials due to supporting formwork, equal age and binding of steel bars. Especially in landslide rescue and disaster relief where there is a risk of secondary disasters, the use of reinforced concrete crown beams brings great danger to construction workers. Utility Model Content

[0003] Based on the above description, the utility model provides a steel pipe pile group support device to solve the technical problems in the prior art of using reinforced concrete crown beams, such as long construction period and difficult recycling of support materials due to supporting formwork, equal age and binding of steel bars, which brings great danger to construction workers.

[0004] The technical solution of the utility model to solve the above technical problems is as follows:

[0005] A steel pipe pile group support device, comprising a steel pipe pile group, a plurality of disc-shaped steel crown beams and a plurality of steel connecting rods;

[0006] The steel pipe pile group includes a plurality of steel pipe piles arranged in an array near the lower end of the slide bed;

[0007] The disc-shaped steel crown beams are installed on the upper ends of the steel pipe piles in a one-to-one correspondence, and the steel connecting rod connects two adjacent disc-shaped steel crown beams.

[0008] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0009] The utility model adopts a disc-type steel beam to effectively connect the micro steel pipe pile group. The disc-type steel crown beam itself is a hyperstatic structure with greater rigidity and better stability. In the construction process of the steel crown beam, there is no need for formwork, steel bar tying, concrete pouring and ageing processes. The installation operation is simple, which greatly improves the construction speed. The crown beam steel can also be recycled and reused, thereby improving construction efficiency and reducing costs while effectively reducing the risk factor faced by construction personnel in unstable slope areas.

[0010] On the basis of the above technical solution, the present invention can also be improved as follows.

[0011] Furthermore, the steel pipe piles are arranged in a rectangular array, and the steel connecting rod connects two disc-shaped steel crown beams located on the sides of the unit rectangle and two disc-shaped steel crown beams on the diagonal vertices.

[0012] Furthermore, the steel pipe pile is externally connected to a steel bar support, and the steel bar support is provided with an external grouting pipe for grouting the outer side of the steel pipe pile to form a cement outer column.

[0013] Furthermore, an internal grouting pipe is provided inside the steel pipe pile for grouting inside the steel pipe pile to form a cement inner column.

[0014] Furthermore, the disc-type steel crown beam includes a disc, a connecting head and a pin. The disc is correspondingly mounted on the upper end of the steel pipe pile, the connecting head is connected to the end of the steel connecting rod, a socket is formed on the connecting head, a fixing hole corresponding to the socket is formed on the disc, and the pin is plugged into the socket and the fixing hole.

[0015] Furthermore, the connecting head is threadedly connected to the end of the steel connecting rod.

[0016] Furthermore, the buckle disc is connected to the upper end of the steel pipe pile through threads.

[0017] Furthermore, the installation heights of all the buckle discs are consistent. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the installation of a steel pipe pile group support device provided in an embodiment of the present application;

[0019] Figure 2 A schematic diagram of a top view of a steel pipe pile group support device provided in an embodiment of the present application;

[0020] Figure 3 This is a schematic diagram of the connection between the steel pipe pile and the disc-shaped steel crown beam in the embodiment of the present application;

[0021] Figure 4 Schematic diagram of the connection structure of the disc-shaped steel crown beam;

[0022] Figure 5 for Figure 3 The structural diagram of the aa section;

[0023] Figure 6 for Figure 3 Schematic diagram of the structure of the bb section. DETAILED DESCRIPTION

[0024] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0026] It will be appreciated that spatial relationship terms such as "under", "beneath", "below", "under", "above", "above", etc., may be used herein to describe the relationship of an element or feature shown in the figures to other elements or features. It should be understood that in addition to the orientations shown in the figures, spatial relationship terms also include different orientations of the device in use and operation. For example, if the device in the accompanying drawings is flipped, the element or feature described as "under other elements" or "under it" or "under it" will be oriented as "on" the other elements or features. Therefore, the exemplary terms "under" and "under" may include both upper and lower orientations. In addition, the device may also include additional orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptors used herein are interpreted accordingly.

[0027] It should be noted that when an element is considered to be "connected" to another element, it can be directly connected to the other element, or connected to the other element through an intermediate element. The "connection" in the following embodiments should be understood as "electrical connection", "communication connection", etc. if the connected circuits, modules, units, etc. have electrical signals or data transmission between each other.

[0028] When used herein, the singular forms "a", "an", and "said / the" may also include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" etc. specify the presence of stated features, wholes, steps, operations, components, parts or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts or combinations thereof.

[0029] like Figure 1-6 As shown, an embodiment of the present application provides a steel pipe pile group supporting device, which includes a steel pipe pile group 100, a plurality of disc-shaped steel crown beams 200 and a plurality of steel connecting rods 300.

[0030] The steel pipe pile group 100 includes a plurality of steel pipe piles 110 arranged in an array near the lower end of the slide bed 20. It is understandable that the steel pipe piles 110 pass through the sliding surface 21 and the upper ends are inserted into the slide body 22 to fix the slide body and prevent the slide body 22 from sliding.

[0031] The disc-shaped steel crown beams 200 are installed on the upper ends of the steel pipe piles 110 in a one-to-one correspondence, and the steel connecting rod 300 connects two adjacent disc-shaped steel crown beams 200 .

[0032] The steel pipe piles 110 are arranged in a rectangular array, and the steel connecting rods 300 connect two disc-shaped steel crown beams 200 located on the sides of the unit rectangle and two disc-shaped steel crown beams 200 on the diagonal vertices.

[0033] In the present application, the steel pipe pile 110 is externally connected to a steel support 120, and an external grouting pipe 111 is provided on the steel support 120 for grouting the outside of the steel pipe pile 110 to form a cement outer column 130; the external grouting pipe 111 can perform splitting grouting on the rock and soil near the sliding surface during the secondary grouting on the outside of the steel pipe pile 110, thereby improving the physical and mechanical properties of the sliding surface and further reducing the risk of landslides.

[0034] An internal grouting pipe 112 is disposed inside the steel pipe pile 110 for grouting inside the steel pipe pile 110 to form a cement inner column.

[0035] Among them, the disc-type steel crown beam 200 includes a disc-type disc 210, a connecting head 220 and a pin 230. The disc-type disc 210 is correspondingly mounted on the upper end of the steel pipe pile 110. Preferably, the disc-type disc 210 is threadedly connected to the upper end of the steel pipe pile 110, and the connecting head 220 is connected to the end of the steel connecting rod 300. Preferably, the connecting head 220 is threadedly connected to the end of the steel connecting rod 300, which is convenient for disassembly and assembly to achieve recycling and reuse.

[0036] The connector 220 is formed with a socket, the buckle disc 210 is formed with a fixing hole corresponding to the socket, and the latch 230 is plugged into the socket and the fixing hole, thereby connecting the buckle disc 210 and the steel connecting rod 300 to achieve relative fixation of the steel connecting rod 300 and the steel pipe pile 110.

[0037] In order to ensure the consistency of the steel pipe pile group 100 , the installation heights of all the buckle discs 210 are consistent.

[0038] The support device provided in this application can be manufactured in the following manner:

[0039] (1) Steel pipe pile welding: The surface of the steel pipe pile 110 of the steel pipe pile group 100 should be derusted and painted with an anti-corrosion coating (such as epoxy asphalt, polyurethane asphalt pasted with glass cloth, with a thickness of ≥1 mm). The steel pipe pile 110 and the steel support 120 should be firmly welded on both sides.

[0040] (2) Engineering drilling: Before construction, a trial drilling should be conducted, with the number of drilled holes not less than 3, to determine the quality of the drilling and to verify whether the selected equipment, construction technology and technical requirements are appropriate. If the test indicators cannot meet the design requirements and construction regulations, remedial measures should be formulated or the construction technology should be reselected. Engineering drilling can only be carried out after the trial drilling results meet the relevant requirements.

[0041] (3) Lifting of the steel pipe pile body and grouting pipes. Specifically, a special lifting plan shall be prepared for the lifting of the steel pipe pile 110 body and grouting pipes (including the external grouting pipe 111 and the internal grouting pipe 112), including the lifting method, lifting point setting, weight verification, etc.

[0042] (4) Concrete pouring: The steel pipe pile 110, the external grouting pipe 111 and the internal grouting pipe 112 are tied securely and placed in the pile hole. After adjusting the verticality, concrete is poured through the internal grouting pipe 120 inside the steel pipe pile 110. Then, secondary grouting is performed through the external grouting pipe 111 outside the steel pipe pile 110. The rock and soil near the sliding surface are split and grouting is performed. After the concrete pouring is completed, maintenance is carried out.

[0043] (5) Connection between the buckle disc and the steel pipe pile group: The buckle disc 210 and the steel pipe pile 110 are connected as a whole by means of threads. The elevation of the buckle disc 210 should be adjusted to the same height to facilitate the subsequent connection with the steel connecting rod 300.

[0044] (6) Connection between the steel pipe pile group and the steel connecting rod: First, the steel connecting rod 300 is connected to the connecting head 220 by threading, and then the connected steel connecting rod 300 is placed in the disc position of the buckle disc 210. After adjusting the angle, it is locked by the pin 230. In this way, the steel pipe pile group 100 and the steel connecting rod 300 are reciprocatedly connected to form a whole, ensuring that the steel connecting rod 300 forms an over-static structure, thereby ensuring that the steel crown beam has sufficient rigidity.

[0045] The support device provided in the present application, the steel pipe pile group 100 and the steel connecting rod 300 can be quickly assembled into a whole through the disc 210 and the pin 230, avoiding the disadvantages of the conventional reinforced concrete crown beam such as long construction period, great construction difficulty, and non-recyclability. The steel connecting rod 300, the disc 210 and the pin 230 can all be mass-produced in the factory, and the disc-type steel crown beam 200 itself is an over-static structure with greater rigidity and better stability, so that the micro-pile group can fully exert its anti-slip function as soon as possible, reducing or suppressing the trend of slope instability.

[0046] In addition, the disc-type steel crown beam 200 can also be recycled and reused, which not only improves construction efficiency and saves costs, but also effectively reduces the risk factors faced by construction workers in unstable slope areas. It is more in line with the development requirements of green, low-carbon and environmentally friendly, avoids the waste of non-renewable resources, indirectly reduces carbon emissions, and achieves efficient utilization of resources and energy, with good economic and social benefits.

[0047] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A steel pipe pile group support device, characterized in that: It includes a group of steel pipe piles, a plurality of disc-shaped steel crown beams and a plurality of steel connecting rods; The steel pipe pile group includes a plurality of steel pipe piles arranged in an array near the lower end of the slide bed; The disc-shaped steel crown beams are installed on the upper ends of the steel pipe piles in a one-to-one correspondence, and the steel connecting rod connects two adjacent disc-shaped steel crown beams.

2. The steel pipe pile group support device according to claim 1, characterized in that: The steel pipe piles are arranged in a rectangular array, and the steel connecting rods connect two disc-shaped steel crown beams located on the sides of the unit rectangle and two disc-shaped steel crown beams on the diagonal vertices.

3. The steel pipe pile group supporting device according to claim 1, characterized in that: The steel pipe pile is externally connected to a steel bar support, and the steel bar support is provided with an external grouting pipe for grouting the outer side of the steel pipe pile to form a cement outer column.

4. The steel pipe pile group supporting device according to claim 3, characterized in that: An internal grouting pipe is arranged inside the steel pipe pile for grouting inside the steel pipe pile to form a cement inner column.

5. The steel pipe pile group supporting device according to claim 1, characterized in that: The disc-type steel crown beam includes a disc, a connecting head and a pin. The disc is correspondingly mounted on the upper end of the steel pipe pile, the connecting head is connected to the end of the steel connecting rod, a socket is formed on the connecting head, a fixing hole corresponding to the socket is formed on the disc, and the pin is plugged into the socket and the fixing hole.

6. The steel pipe pile group supporting device according to claim 5, characterized in that: The connecting head is threadedly connected to the end of the steel connecting rod.

7. The steel pipe pile group supporting device according to claim 5, characterized in that: The buckle disc is connected to the upper end of the steel pipe pile through threads.

8. The steel pipe pile group supporting device according to claim 5, characterized in that: The installation heights of all the buckle discs are consistent.

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