Fabricated UHPC special-shaped support pile with separated bearing function and soil retaining function

Abstract

The invention belongs to the technical field of engineering components, and particularly relates to an assembly type UHPC special-shaped support pile with the bearing function and the soil retaining function separated. The UHPC material with high strength and high rigidity is utilized, and compared with Larsen steel sheet piles, the UHPC material can be used for long-term or permanent supporting structures such as foundation pit engineering of basements; compared with a common reinforced concrete UHPC material, the reinforced concrete UHPC material is firmer; the UHPC material has the advantages of being good in durability and resistant to chemical corrosion, can be used for river bank slope protection engineering in coastal areas, and can effectively prevent erosion in the chlorine salt environment; the bearing pile prefabricated part used for bearing horizontal force and the soil retaining plate prefabricated part used for retaining soil are scientifically combined, and the structural stability and durability of the fabricated UHPC special-shaped pile can be improved. Materials used in the method can be prefabricated in a factory, tamped underground and connected in a clamping mode, the construction period is greatly shortened, the labor cost is greatly reduced, and the manufacturing cost is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of engineering components, and in particular relates to an assembled UHPC special-shaped supporting pile with separated bearing and retaining functions. Background Art

[0002] At present, the most commonly used in foundation pit support is Larsen steel sheet pile, that is, U-shaped steel sheet pile, which uses U-shaped steel sheet mortise and tenon overlap for foundation pit support. Larsen steel sheet pile is a temporary support measure. This solution was found to have shortcomings during use: U-shaped steel sheet pile has low rigidity and is not convenient for long-term foundation pit support; especially in the eastern coastal areas of my country, where there are thick silt layers widely distributed, in order to meet the requirements of bearing and deformation, the length of Larsen steel sheet pile is relatively large, resulting in low lateral displacement rigidity of steel sheet pile. When used for foundation pit support, the horizontal displacement of the end of the steel sheet pile is difficult to meet the specification limit requirements.

[0003] In addition, there is a special-shaped pile used for river bank protection, which is mainly U-shaped piles and hollow piles. It is generally prefabricated by pouring steel bars and concrete, and is rammed into the ground and overlapped into a whole during on-site construction. The river bank protection piles are permanent support measures. This solution was found to have shortcomings during use: the corrosion resistance of reinforced concrete slope protection special-shaped sheet piles is poor, the overall cost is high, and it is not conducive to achieving the goals of economic, low-carbon, and sustainable development.

[0004] In view of this, the inventor hopes to design an assembled UHPC special-shaped support pile with separated load-bearing and retaining functions. Compared with Larsen steel sheet piles, it can be used for long-term or permanent support structures, such as basement foundation pit projects; compared with ordinary reinforced concrete UHPC materials are stronger. Summary of the invention

[0005] The purpose of the present invention is to overcome the above-mentioned problems existing in the conventional technology and to provide an assembled UHPC special-shaped supporting pile with separated bearing and retaining functions.

[0006] In order to achieve the above technical objectives and the above technical effects, the present invention is implemented through the following technical solutions:

[0007] The present invention provides an assembled UHPC special-shaped support pile with separated bearing and retaining functions, comprising a bearing pile prefabricated part and a retaining plate prefabricated part;

[0008] The bearing pile prefabricated component comprises a transverse plate portion, a lower plug plate portion, an upper clamping plate portion, a clamping groove, a positioning convex ridge and a pre-embedded reinforcing plate, wherein a plurality of lower plug plate portions are connected to the lower side of the transverse plate portion, and two upper clamping plate portions are connected to the upper side of the transverse plate portion, and a clamping groove for clamping and installing the retaining plate prefabricated component is formed between the two upper clamping plate portions, and a positioning convex ridge connected to the transverse plate portion is provided at the bottom end of the clamping groove, and the transverse plate portion, the lower plug plate portion, the upper clamping plate portion and the positioning convex ridge are installed with a pre-embedded reinforcing plate inside thereof;

[0009] The retaining plate prefabricated component includes a retaining plate body, a clamping groove is provided on the lower side of the retaining plate body, a clamping ridge is provided on the upper side of the retaining plate body, the shapes of the clamping groove, the positioning ridge and the clamping ridge cooperate with each other, and at least one embedded reinforcing steel bar is installed inside the retaining plate body along its length direction.

[0010] Furthermore, in the above-mentioned assembled UHPC special-shaped supporting pile with separated bearing and retaining functions, the cross plate part, the lower plug plate part, the upper clamping plate part and the positioning convex ridges in the bearing pile prefabricated part are an integrated structure.

[0011] Furthermore, in the above-mentioned assembled UHPC special-shaped supporting pile with separated bearing and retaining functions, three lower plug-in plate parts are connected to the lower side of the transverse plate part, and the middle lower plug-in plate part is located directly below the slot.

[0012] Furthermore, in the above-mentioned assembled UHPC special-shaped supporting piles with separated bearing and retaining functions, the embedded reinforcement plate includes a transverse plate section, a lower vertical plate section, an upper vertical plate section and a convex plate section which are connected as one body, the transverse plate section is located inside the transverse plate portion, the lower vertical plate section is located inside the lower plug-in plate portion, the upper vertical plate section is located inside the upper clamping plate portion, and the convex plate section is located inside the positioning convex ridge.

[0013] Furthermore, in the above-mentioned assembled UHPC special-shaped supporting piles with separated bearing and retaining functions, the embedded reinforcement plate is located in the lower vertical plate section and the upper vertical plate section and is provided with a plurality of through holes.

[0014] Furthermore, in the above-mentioned assembled UHPC special-shaped supporting piles with separated bearing and retaining functions, two pre-buried reinforcing steel bars are installed inside the retaining plate body along its length direction.

[0015] Furthermore, in the above-mentioned assembled UHPC special-shaped supporting piles with separated bearing and retaining functions, the bearing pile prefabricated parts are obtained by first fixing the embedded reinforcement plates in the corresponding manufacturing molds, and then filling the UHPC materials and curing them.

[0016] Furthermore, in the above-mentioned assembled UHPC special-shaped supporting piles with separated bearing and retaining functions, the retaining plate prefabricated parts are obtained by first fixing the embedded reinforcing steel bars in the corresponding manufacturing mold, and then filling the UHPC material and curing it.

[0017] The beneficial effects of the present invention are:

[0018] 1. The present invention utilizes the high strength and high rigidity of UHPC materials. Compared with Larsen steel sheet piles, it can be used for long-term or permanent support structures, such as basement foundation pit projects; compared with ordinary reinforced concrete, UHPC materials are stronger.

[0019] 2. The present invention utilizes the advantages of UHPC materials, which have good durability and resistance to chemical corrosion, and can be used in river bank slope protection projects in coastal areas to effectively prevent erosion in chloride salt environments.

[0020] 3. The present invention scientifically combines the bearing pile prefabricated parts for bearing horizontal forces and the retaining plate prefabricated parts for retaining soil, which can improve the stability and durability of the assembled UHPC special-shaped pile structure.

[0021] 4. The materials used in the present invention can all be prefabricated in factories, rammed into the ground, and connected by means of clip-on connections, which greatly saves construction time and labor costs and reduces construction costs.

[0022] Of course, any product implementing the present invention does not necessarily need to achieve all of the above advantages at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0024] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0025] Figure 2 It is a schematic diagram of the main structure of the present invention as a whole;

[0026] Figure 3 It is a schematic diagram of the overall top view of the present invention;

[0027] Figure 4 It is a structural schematic diagram of the load-bearing pile prefabricated component in the present invention;

[0028] Figure 5 It is a structural schematic diagram of the first embodiment of the present invention;

[0029] Figure 6 It is a structural schematic diagram of the second embodiment of the present invention;

[0030] Figure 7 It is a structural schematic diagram of the retaining plate prefabricated component in the present invention;

[0031] Figure 8 It is a schematic diagram of the structure of the embedded reinforcing steel bars in the present invention;

[0032] In the accompanying drawings, the reference numerals of the various components are as follows:

[0033] 1-bearing pile prefabricated component, 11-transverse plate portion, 12-lower plug plate portion, 13-upper clamping plate portion, 14-clamping groove, 15-positioning convex ridge, 16-embedded reinforcement plate, 161-transverse plate section, 162-lower vertical plate section, 163-upper vertical plate section, 164-convex plate section, 165-through hole, 2-retaining board prefabricated component, 21-retaining board body, 22-clamping ridge groove, 23-clamping convex ridge, 24-embedded reinforcement steel bar. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Embodiment 1

[0036] like Figure 1-Figure 3 As shown, this embodiment provides an assembled UHPC special-shaped supporting pile with separated bearing and retaining functions, including a bearing pile prefabricated component 1 and a retaining plate prefabricated component 2.

[0037] like Figure 4 As shown, the bearing pile prefabricated component 1 includes a transverse plate portion 11, a lower plug plate portion 12, an upper clamping plate portion 13, a clamping groove 14, a positioning convex ridge 15 and a pre-embedded reinforcing plate 16. A plurality of lower plug plate portions 12 are connected to the lower side of the transverse plate portion 11, and two upper clamping plate portions 13 are connected to the upper side of the transverse plate portion 11. A clamping groove 14 for clamping and installing the retaining plate prefabricated component 2 is formed between the two upper clamping plate portions 13, and a positioning convex ridge 15 connected to the transverse plate portion 11 is provided at the bottom end of the clamping groove 14. The pre-embedded reinforcing plate 16 is installed in the interior of the transverse plate portion 11, the lower plug plate portion 12, the upper clamping plate portion 13, and the positioning convex ridge 15.

[0038] In this embodiment, the cross plate 11, the lower plug plate 12, the upper clamping plate 13 and the positioning ridge 15 in the bearing pile prefabricated member 1 are an integrated structure. Three lower plug plates 12 are connected to the lower side of the cross plate 11, and the middle lower plug plate 12 is located directly below the clamping groove.

[0039] like Figure 5 As shown, the embedded reinforcement plate 16 includes a horizontal plate section 161, a lower vertical plate section 162, an upper vertical plate section 163 and a convex plate section 164 which are connected as one body. The horizontal plate section 161 is located inside the horizontal plate portion 11, the lower vertical plate section 162 is located inside the lower plug-in plate portion 12, the upper vertical plate section 163 is located inside the upper clamping plate portion 13, and the convex plate section 164 is located inside the positioning ridge 15.

[0040] In this embodiment, the prefabricated bearing pile 1 is obtained by first fixing the embedded reinforcing plate 16 in its corresponding manufacturing mold, and then filling the UHPC material and curing it.

[0041] like Figure 7 As shown, the retaining plate prefabricated component 2 includes a retaining plate body 21, a clamping groove 22 is provided on the lower side of the retaining plate body 21, a clamping ridge 23 is provided on the upper side of the retaining plate body 21, the clamping groove 23 and the positioning ridge 15 and the clamping ridge 23 are matched in shape, and two pre-buried reinforcing steel bars 24 are installed inside the retaining plate body 21 along its length direction.

[0042] like Figure 8 As shown, two pre-buried reinforcing steel bars 24 are installed inside the retaining plate body 21 along its length direction.

[0043] In this embodiment, the retaining plate prefabricated component 2 is obtained by first fixing the pre-embedded reinforcing steel bars 24 in its corresponding manufacturing mold, and then filling the UHPC material and curing it.

[0044] A specific application of this embodiment is: this application utilizes the high strength and high rigidity of UHPC materials. Compared with Larsen steel sheet piles, it can be used for long-term or permanent support structures, such as basement foundation pit projects; compared with ordinary reinforced concrete, UHPC materials are stronger. Taking advantage of the advantages of good durability and resistance to chemical corrosion, UHPC materials can be used in riverbank slope protection projects in coastal areas, and can effectively prevent erosion in chloride salt environments. This application scientifically combines the load-bearing pile prefabricated parts 1 for bearing horizontal forces and the retaining plate prefabricated parts 2 for retaining soil, which can improve the stability and durability of the assembled UHPC special-shaped pile structure. The materials used in this application can all be prefabricated in the factory, rammed into the ground, and connected in a snap-on manner, which greatly saves construction time and labor costs and reduces construction costs.

[0045] Embodiment 2

[0046] like Figure 1-Figure 3 As shown, this embodiment provides an assembled UHPC special-shaped supporting pile with separated bearing and retaining functions, including a bearing pile prefabricated component 1 and a retaining plate prefabricated component 2.

[0047] like Figure 4 As shown, the bearing pile prefabricated component 1 includes a transverse plate portion 11, a lower plug plate portion 12, an upper clamping plate portion 13, a clamping groove 14, a positioning convex ridge 15 and a pre-embedded reinforcing plate 16. A plurality of lower plug plate portions 12 are connected to the lower side of the transverse plate portion 11, and two upper clamping plate portions 13 are connected to the upper side of the transverse plate portion 11. A clamping groove 14 for clamping and installing the retaining plate prefabricated component 2 is formed between the two upper clamping plate portions 13, and a positioning convex ridge 15 connected to the transverse plate portion 11 is provided at the bottom end of the clamping groove 14. The pre-embedded reinforcing plate 16 is installed in the interior of the transverse plate portion 11, the lower plug plate portion 12, the upper clamping plate portion 13, and the positioning convex ridge 15.

[0048] In this embodiment, the cross plate 11, the lower plug plate 12, the upper clamping plate 13 and the positioning ridge 15 in the bearing pile prefabricated member 1 are an integrated structure. Five lower plug plates 12 are connected to the lower side of the cross plate 11, and the middle lower plug plate 12 is located directly below the clamping groove.

[0049] like Figure 6 As shown, the embedded reinforcing plate 16 includes a horizontal plate section 161, a lower vertical plate section 162, an upper vertical plate section 163 and a convex plate section 164 which are connected as one body. The horizontal plate section 161 is located inside the horizontal plate portion 11, the lower vertical plate section 162 is located inside the lower plug plate portion 12, the upper vertical plate section 163 is located inside the upper clamping plate portion 13, and the convex plate section 164 is located inside the positioning convex ridge 15. The embedded reinforcing plate 16 is provided with a plurality of through holes 165 in the lower vertical plate section 162 and the upper vertical plate section 163. The design of the through holes 165 can reduce the overall weight on the one hand, and is conducive to improving the connection reliability between the embedded reinforcing plate 16 and the covering material on the other hand.

[0050] In this embodiment, the prefabricated bearing pile 1 is obtained by first fixing the embedded reinforcing plate 16 in its corresponding manufacturing mold, and then filling the UHPC material and curing it.

[0051] like Figure 7 As shown, the retaining plate prefabricated component 2 includes a retaining plate body 21, a clamping groove 22 is provided on the lower side of the retaining plate body 21, a clamping ridge 23 is provided on the upper side of the retaining plate body 21, the clamping groove 23 and the positioning ridge 15 and the clamping ridge 23 are matched in shape, and a pre-buried reinforcing steel bar 24 is installed inside the retaining plate body 21 along its length direction.

[0052] In this embodiment, the retaining plate prefabricated component 2 is obtained by first fixing the pre-embedded reinforcing steel bars 24 in its corresponding manufacturing mold, and then filling the UHPC material and curing it.

[0053] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An assembled UHPC special-shaped support pile with separate bearing and retaining functions, characterized in that: Including prefabricated bearing piles and prefabricated retaining panels; The bearing pile prefabricated component comprises a transverse plate portion, a lower plug plate portion, an upper clamping plate portion, a clamping groove, a positioning convex ridge and a pre-embedded reinforcing plate, wherein a plurality of lower plug plate portions are connected to the lower side of the transverse plate portion, and two upper clamping plate portions are connected to the upper side of the transverse plate portion, and a clamping groove for clamping and installing the retaining plate prefabricated component is formed between the two upper clamping plate portions, and a positioning convex ridge connected to the transverse plate portion is provided at the bottom end of the clamping groove, and the transverse plate portion, the lower plug plate portion, the upper clamping plate portion and the positioning convex ridge are installed with a pre-embedded reinforcing plate inside thereof; The retaining plate prefabricated component includes a retaining plate body, a clamping groove is provided on the lower side of the retaining plate body, a clamping ridge is provided on the upper side of the retaining plate body, the shapes of the clamping groove, the positioning ridge and the clamping ridge cooperate with each other, and at least one embedded reinforcing steel bar is installed inside the retaining plate body along its length direction.

2. The assembled UHPC special-shaped supporting pile with separated bearing and retaining functions according to claim 1 is characterized in that: The cross plate part, the lower plug plate part, the upper clamping plate part and the positioning convex ridge in the bearing pile prefabricated part are an integrated structure.

3. The assembled UHPC special-shaped supporting pile with separated bearing and retaining functions according to claim 2 is characterized in that: The lower side of the transverse plate portion is connected with three lower inserting plate portions, and the lower inserting plate portion in the middle is located directly below the card slot.

4. The assembled UHPC special-shaped supporting pile with separated bearing and retaining functions according to claim 3 is characterized in that: The embedded reinforcement plate includes a horizontal plate section, a lower vertical plate section, an upper vertical plate section and a convex plate section which are connected as one body. The horizontal plate section is located inside the horizontal plate portion, the lower vertical plate section is located inside the lower plug-in plate portion, the upper vertical plate section is located inside the upper clamping plate portion, and the convex plate section is located inside the positioning convex ridge.

5. The assembled UHPC special-shaped supporting pile with separated bearing and retaining functions according to claim 4 is characterized in that: The embedded reinforcement plate is located at the lower vertical plate section and the upper vertical plate section and is provided with a plurality of through holes.

6. The assembled UHPC special-shaped supporting pile with separated bearing and retaining functions according to claim 5 is characterized in that: Two pre-buried reinforcing steel bars are installed inside the retaining plate body along its length direction.

7. The assembled UHPC special-shaped supporting pile with separated bearing and retaining functions according to claim 6 is characterized in that: The bearing pile prefabricated part is obtained by first fixing a pre-embedded reinforcement plate in a corresponding manufacturing mold, and then filling the UHPC material and curing it.

8. The assembled UHPC special-shaped supporting pile with separated bearing and retaining functions according to claim 7 is characterized in that: The retaining plate prefabricated component is obtained by first fixing the embedded reinforcing steel bars in the corresponding manufacturing mold, and then filling the UHPC material and curing it.

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