Reinforcing structure and foundation pit supporting component comprising same

Abstract

The invention belongs to the technical field of foundation pit supporting, and particularly relates to a reinforcing structure and a foundation pit supporting component comprising the same. The reinforcing structure comprises an inclined hole channel, reinforcing steel bars and cast-in-place concrete columns, the inclined hole channel is inwards formed in the side wall of a foundation pit and / or a support pile, the forming end point of the inclined hole channel is located on a waterproof curtain, the reinforcing steel bars are arranged in the inclined hole channel, the cast-in-place concrete columns are arranged in the inclined hole channel, the waterproof curtain is of a drilling secant pile type, and on the cross section of the same height, the reinforcing steel bars are arranged in the inclined hole channel. The circle center distance between the supporting piles and the waterproof curtain ranges from 0.5 m to 3.5 m. The reinforcing structure at least has the beneficial effects that the reinforcing structure can enable the positions of the two sides of the waterproof curtain to be fully supported and fixed by the soil layer, the transverse position stability of the waterproof curtain is guaranteed, the supporting piles can be connected, the supporting piles and the waterproof curtain can be connected into an integral structure, and the waterproof curtain is more stable. And the transverse position stability of the waterproof curtain can be improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of foundation pit support, and particularly relates to a reinforcing structure and a foundation pit support component comprising the structure. BACKGROUND

[0002] The foundation pit support technology refers to a series of engineering construction technologies adopted to ensure the safety and stability of a foundation pit (i.e., a dug underground space) and its surrounding environment during underground construction.

[0003] Generally, the structure of a common existing foundation pit support component mainly comprises a support pile, a waterproof curtain, a crown beam, and a slope pouring layer. Correspondingly, the foundation pit itself generally comprises a side wall, a slope upper bottom, a slope, and a slope lower bottom. The slope lower bottom is the main body of the bottom surface of the foundation pit.

[0004] On the other hand, the support pile and the waterproof curtain are the main structure of the entire foundation pit support component. The main function of the support pile is to support the side wall of the foundation pit and prevent soil from sliding or collapsing, and the main function of the waterproof curtain is to block underground water from flowing into the interior of the foundation pit.

[0005] The shape of the support pile is generally cylindrical, and adjacent two support piles are separated from each other. The waterproof curtain is another cylindrical concrete structure, and a continuous "curtain" pattern is formed by partially overlapping adjacent two waterproof curtains. Generally, the diameter of the support pile is larger than that of the waterproof curtain, and the depth of the waterproof curtain is larger than that of the support pile. The support pile is constructed first, and then the waterproof curtain is constructed.

[0006] In addition, the main function of the crown beam is to integrate all the support piles, and it is located at least in the soil layer and connects the upper ends of all the support piles. The main function of the above-mentioned slope pouring layer is to reinforce the slope surface. Correspondingly, a pouring layer can also be arranged on the above-mentioned slope lower bottom.

[0007] For example, the Chinese utility model patent with the authorization announcement number CN223074749U and the authorization announcement date of July 8, 2025 discloses a house building soft deep foundation pit support structure, which mainly comprises a deep foundation pit, a support pile, a support beam, a jet anchor support member, a jet anchor cylinder, a spraying hole, a drill bit, a steel mesh, a waterproof curtain, a reinforcing seat, a water interception trench, and a corner reinforcing rib.

[0008] The advantage of the foundation pit support structure in the utility model patent is that multiple support piles and multiple support beams are arranged along the boundary line of the deep foundation pit to support the entire support structure.

[0009] However, the foundation pit support structure at least has the following problem of insufficient stability in actual construction and use, which is specifically manifested in that: The supporting pile structure and the water stop curtain are in contact with each other, and the supporting pile provides relatively small lateral support strength for the water stop curtain compared with the soil body.

[0010] The reason is that the spray anchor supporting member is additionally arranged in the foundation pit supporting structure, so that the water stop curtain has to be close to the supporting pile structure. SUMMARY

[0011] The application provides a reinforcing structure, which aims to solve the technical problem of how to make the water stop curtain for foundation pit supporting have sufficient lateral position stability.

[0012] In addition, the application also provides a foundation pit supporting component comprising the above structure.

[0013] The technical scheme adopted by the application to solve the above problem is: a reinforcing structure, comprising an inclined hole channel that is inwardly arranged on the side wall of a foundation pit and / or a supporting pile and has an end point on a water stop curtain, reinforcing steel bars arranged in the inclined hole channel, and a cast-in-place concrete column arranged in the inclined hole channel, the type of the water stop curtain being a bored friction pile, and the center distance between the supporting pile and the water stop curtain being 0.5-3.5 m on the same height cross section.

[0014] The further preferred technical scheme is that a second inclined hole channel that is inwardly arranged on a slope and has an end point on the water stop curtain and is provided with the reinforcing steel bars and the cast-in-place concrete column is further included.

[0015] The further preferred technical scheme is that an anchor device arranged at a position exposed on the reinforcing steel bars and in a rear end position of an insertion direction and a supporting pile connecting plate arranged on the reinforcing steel bars and fastened by the anchor device and used for reinforcing the supporting pile are further included.

[0016] The further preferred technical scheme is that a mounting hole arranged on the supporting pile connecting plate and used for penetrating the reinforcing steel bars is further included.

[0017] The further preferred technical scheme is that the number of the reinforcing steel bars in the second inclined hole channel is two, and a U-shaped steel bar arranged at positions exposed on the two reinforcing steel bars and in rear end positions of the insertion direction and used for connecting the two reinforcing steel bars is further included.

[0018] The further preferred technical scheme is that a steel mesh arranged on the slope and connected to the U-shaped steel bar and a layer of poured concrete arranged on the slope are further included.

[0019] The further preferred technical scheme is that a transverse beam arranged on the slope and connected to a plurality of the U-shaped steel bars is further included.

[0020] Further preferably, the opening direction of the U-shaped steel bar is towards the side slope, and the transverse steel bar or the inclined steel bar of the steel bar mesh passes through the position of the limiting hole formed by the U-shaped steel bar and the side slope.

[0021] A foundation pit supporting component comprising a reinforcing structure, the structure comprising the supporting pile, and the waterproof curtain, further comprising an integral beam arranged at the upper end position of a plurality of the supporting piles, and a ground surface beam arranged at the upper end position of the waterproof curtain.

[0022] Further preferably, the reinforcing structure further comprises a cast-in-place concrete connecting plate arranged on the integral beam and the ground surface beam, and vertically projected on the inclined channel, and used for forming a concrete closed frame together with the supporting pile, the cast-in-place concrete column and the waterproof curtain.

[0023] The beneficial effects of the present application include at least the following three points.

[0024] Firstly, the reinforcing structure can make both sides of the waterproof curtain be fully supported and fixed by the soil layer, ensuring the lateral position stability of the waterproof curtain, and can also connect the supporting pile, so that the supporting pile and the waterproof curtain are connected as an integral structure, which is also conducive to improving the lateral position stability of the waterproof curtain.

[0025] Secondly, the reinforcing structure further comprises a second inclined channel arranged at the side slope and also arranged with reinforcing steel bars and cast-in-place concrete columns, which can further improve the lateral position stability of the waterproof curtain.

[0026] Thirdly, the reinforcing structure has two local structures at the positions of the side wall of the foundation pit and / or the supporting pile, and at the position of the side slope, which are respectively conducive to improving the structural stability of the supporting pile and the structural stability of the side slope, so that the reinforcing structure is conducive to the overall stability of the foundation pit supporting component. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 The position of the reinforcing structure in the present application is shown in the figure.

[0028] Figure 2 The position of the supporting pile and the waterproof curtain in the present application is shown in the figure from the perspective of the top view.

[0029] Figure 3 The position of the integral beam and the supporting pile connecting plate in the present application is shown in the figure.

[0030] Figure 4 The position of the inclined channel and the second inclined channel in the present application is shown in the figure.

[0031] Figure 5 The position of the anchorage device in the present application is shown in the figure.

[0032] Figure 6Schematic diagram of the position of U-shaped steel bars in this application.

[0033] Figure 7 Schematic diagram of the matching method of U-shaped steel bars and steel mesh in this application.

[0034] Figure 8 Schematic diagram of the position of the transverse beam in this application.

[0035] Figure 9 This is a schematic diagram of the position and shape of the cast-in-place concrete connecting plate in this application from a top-down perspective.

[0036] Figure 10 This is a structural diagram of the concrete closed frame in this application.

[0037] In the figure, the meanings of the symbols are as follows.

[0038] Foundation pit side wall a, side slope b, upper bottom surface c, main body bottom surface d, ground surface e, and center distance L; Inclined channel 1, reinforcing steel bar 2, cast-in-place concrete column 3, second inclined channel 4, anchor 5, support pile connecting plate 6, mounting hole 7, U-shaped steel bar 8, steel mesh 9, cast concrete layer 10, transverse beam 11; Support piles 12, water-stop curtain 13, integral beam 14, surface beam 15, cast-in-place concrete connecting plate 16, concrete wall 17. DETAILED DESCRIPTION

[0039] The following description is merely a preferred embodiment of the present application and does not limit the scope of the present application.

[0040] like Figures 1-10 As shown, a reinforcement structure includes an inclined channel 1 opened inward on the side wall a of the foundation pit and / or the supporting piles 12, and the end point of the opening is located on the water-stop curtain 13, reinforcing steel bars 2 arranged in the inclined channel 1, and cast-in-place concrete columns 3 arranged in the inclined channel 1. The type of the water-stop curtain 13 is a bored interlocking pile. On the cross section at the same height, the center distance L between the supporting piles 12 and the water-stop curtain 13 is 0.5-3.5m.

[0041] In this embodiment, one foundation pit corresponds to one complete reinforcement structure. Generally, the shape of the foundation pit is rectangular, so a number of the support piles 12 are appropriately and evenly arranged to form a rectangular frame, and the construction position of the water-stop curtain 13 is determined by the water leakage of the soil layer. The maximum construction size of the water-stop curtain 13 is to continuously construct and form a complete rectangular frame, and finally obtain a full range of water-stopping effects. Correspondingly, the water-stop curtain 13 can also be set on only one side of the rectangular foundation pit, for example.

[0042] Wherein, the side wall a, the slope b, the upper bottom c, and the main bottom d are formed by excavation operation. Generally, the side wall a passes through the center axis of the support pile 12, that is, half of the support pile 12 is exposed and half of the support pile 12 is in the soil layer. The excavation sequence of the foundation pit is generally as follows: First, after the support pile 12 and the waterproof curtain 13 are constructed, the excavation is performed downward to the preset depth of the upper bottom c; Second, the excavation is expanded laterally on the upper bottom c until the support pile 12 is partially exposed; Third, the excavation is continued downward on the upper bottom c, and the excavation forms the slope b, and the excavation size is smaller than the overall length and width size of the foundation pit, and finally the main bottom d is exposed.

[0043] Wherein, the starting point of the inclined channel 1 is located on the side wall a or the support pile 12, and the ending point is located on the waterproof curtain 13, and does not penetrate the waterproof curtain 13. The inclined channel 1 is a straight channel with a circular cross section, and the starting point end is higher than the ending point end, and the acute angle between the center axis and the horizontal plane is 40-75°.

[0044] In addition, the length of the reinforcing steel bar 2 is greater than the depth of the inclined channel 1, and the cast-in-place concrete column 3 is constructed by using high-strength concrete, and the concrete strength grade is about C60. The high-strength concrete in the inclined channel 1 forms the cast-in-place concrete column 3 by the rotary jet method, and the visible end face, that is, the exposed end face of the pouring ending point, is generally flush with the annular surface of the side wall a or the support pile 12.

[0045] Wherein, the type of the waterproof curtain 13 is a drilled and grouted pile, and the cross-sectional shape is a row of circles with partial overlap between adjacent two circles, and the center distance L is the distance between the cross-sectional center line of the support pile 12 and the cross-sectional center line of the waterproof curtain 13.

[0046] And the advantages of the appropriate separation mode of the waterproof curtain 13 and the support pile 12 at least include: First, the specific site selection position of the waterproof curtain 13 formed by post-excavation and post-pouring is not limited by the support pile 12, and does not need to be attached to the support pile 12; Second, the excavation of the waterproof curtain 13 does not damage the support pile 12; Third, the waterproof curtain 13 has sufficient size of soil layer on both sides to provide lateral support, which is beneficial to the foundation stability of the waterproof curtain 13.

[0047] On the other hand, the diameter of the support pile 12 is much larger than the diameter of the cylindrical minimum unit constituting the waterproof curtain 13, and the support pile 12 can still bear the support and reinforcement effect on the waterproof curtain 13 on the basis of supporting the soil layer in the lateral direction.

[0048] At this point, the waterproof curtain 13 is fully and relatively uniformly supported and fixed on both sides by the soil layer, and is additionally supported by the support pile 12 in combination with the reinforcement structure. Therefore, the waterproof curtain 13 can obtain relatively higher lateral position stability.

[0049] Finally, the following points need to be explained.

[0050] First, the support pile 12 and the waterproof curtain 13 are generally cast-in-place steel concrete structures, and the drilling machine required for forming the inclined hole 1 is a commercially available electric or hydraulic concrete drilling machine, which is sufficient to drill holes in the steel concrete structure.

[0051] Second, the end point determination method of the inclined hole 1 is that: first, the above-mentioned concrete drilling machine penetrates the soil layer, and the resistance increases sharply when it hits the waterproof curtain 13, which is a clear starting signal; second, the excavation direction of the inclined hole 1 is inclined downward, and the actual advancing distance of the drill bit is greater than the moving distance of the drill bit in the lateral direction, so the above-mentioned actual advancing distance is defined as, for example, the radius of the circular minimum unit of the cross section of the drilling pile, so that the moving distance of the drill bit in the lateral direction is slightly smaller than the above-mentioned radius size, so that the depth of the inclined hole 1 on the waterproof curtain 13 is sufficient and appropriate.

[0052] Third, the reason why the inclined hole 1 is not suitable to penetrate the waterproof curtain 13 is mainly that: first, after the inclined hole 1 is formed, before the cast-in-place concrete column 3 is completely cured, the inclined hole 1 becomes a "leakage" on the waterproof curtain 13, which greatly reduces the overall waterproof effect; second, even if the cast-in-place concrete column 3 is completely cured, the above-mentioned "leakage" is still prone to water leakage, because the nature of the cast-in-place concrete column 3 is a connector, not a seal, which can only connect the waterproof curtain 13 sufficiently, and it is difficult to achieve the sealing effect of completely plugging the above-mentioned "leakage".

[0053] The reinforcement structure also includes a second inclined hole 4 that is opened inward on the slope b and has an opening end on the waterproof curtain 13, and is provided with the reinforcing steel bars 2 and the cast-in-place concrete column 3.

[0054] In the embodiment, the upper end faces of the support piles 12 and the waterproof curtain 13 are flush, corresponding to the ground surface e, the length of the support piles 12 is at least 1.5-2.0 times the vertical distance between the ground surface e and the bottom surface d of the main body, and the vertical length of the waterproof curtain 13 depends on the leakage condition around the foundation pit. Generally, the vertical length of the waterproof curtain 13 is greater than that of the support piles 12, thereby obtaining more sufficient waterproof effect.

[0055] Correspondingly, the inclined hole 1 can only be reinforced in the relative upper part of the waterproof curtain 13, and the second inclined hole 4 can make up for this vacancy. After being matched with the reinforcing steel bars 2 and the cast-in-place concrete column 3, the second inclined hole 4 can reinforce the relative lower part of the waterproof curtain 13, and finally comprehensively strengthen the lateral position stability of the waterproof curtain 13 to avoid vertical inclination.

[0056] The depth of the second inclined hole 4 is greater than that of the inclined hole 1, and there is no size limit between the inclination degrees of the two, and the length of the reinforcing steel bars 2 used by the former is correspondingly greater.

[0057] Like the inclined hole 1, whether the single second inclined hole 4 penetrates the support pile 12 or not, at least 40% of the inclined holes 1 and the second inclined holes 4 in the combination of the four inclined holes 1 and the combination of the four second inclined holes 4 at the four side positions of the foundation pit penetrate the support pile 12, thereby making the effective strength of the reinforcing structure connecting the support pile 12 and the waterproof curtain 13 sufficient.

[0058] In addition, the second inclined hole 4 also does not penetrate the waterproof curtain 13.

[0059] The reinforcing structure further includes an anchor 5 arranged at the exposed rear end position of the insertion direction of the reinforcing steel bar 2, and a support pile connecting plate 6 arranged on the reinforcing steel bar 2 and fastened by the anchor 5 and used for reinforcing the support pile 12.

[0060] In the embodiment, the anchor 5 is a commercially available product, and the support pile connecting plate 6 is a rectangular steel plate. The four support pile connecting plates 6 at the four side positions of the foundation pit can be spliced by multiple steel plates.

[0061] The reinforcing steel bar 2 is exposed after penetrating the support pile connecting plate 6, and the exposed end is provided with the anchor 5. After the cast-in-place concrete column 3 is completely solidified, the anchor 5 is tightened, and finally the support pile connecting plate 6 can abut against all the support piles 12 on the same side.

[0062] On the other hand, the support pile connecting plate 6 and the support pile 12 inside it are additionally welded or screwed, the purpose is to "turn all the support piles 12 on the same side into a whole", and further improve the structural stability of the reinforcement structure and the whole foundation pit support component.

[0063] All the support piles 12 on the same side are provided with 1-2 support pile connecting plates 6.

[0064] The reinforcement structure further comprises installation holes 7 provided on the support pile connecting plate 6 and used for passing through the reinforcement steel bars 2.

[0065] In this embodiment, the reinforcement steel bars 2 pass through and expose at the installation holes 7, and the former is appropriately bent on the latter for effective installation of the anchor 5.

[0066] The number of reinforcement steel bars 2 in the second inclined channel 4 is 2; it further comprises a U-shaped steel bar 8 provided at the exposed rear end position of the insertion direction of the two reinforcement steel bars 2 and used for connecting the two reinforcement steel bars 2.

[0067] In this embodiment, the two ends of the U-shaped steel bar 8 are respectively welded to the exposed ends of the above-mentioned two reinforcement steel bars 2. The main role of the U-shaped steel bar 8 is: First, provide anchoring points for the subsequent concrete structure on the slope b; Second, connect the reinforcement structure at the second inclined channel 4 with the above-mentioned subsequent concrete structure as a whole, and improve the connection strength of the reinforcement structure to the waterproof curtain 13.

[0068] Correspondingly, the U-shaped steel bar 8 is completely exposed on the slope b, and the cast-in-place concrete column 3 in the second inclined channel 4 is relatively short, so that the above-mentioned subsequent concrete structure forms a concrete shear key in the second inclined channel 4, and finally improves its stability on the slope b. For details, please refer to the attached Figure 7 .

[0069] The reinforcement structure further comprises a steel mesh 9 provided on the slope b and connected to the U-shaped steel bar 8, and a poured concrete layer 10 provided on the slope b.

[0070] In this embodiment, the poured concrete layer 10 combined with the steel mesh 9 is one of the above-mentioned subsequent concrete structures.

[0071] The construction method of the steel mesh 9 is generally as follows: First, the steel mesh 9 is welded and formed by itself and laid on the slope b; Second, install the U-shaped steel bar 8 on the steel mesh 9 in a downward opening manner; Third, welding the exposed ends of the U-shaped steel bars 8 and the reinforcing bars 2; Fourth, welding the U-shaped steel bars 8 and the reinforcing mesh 9, so that the reinforcing mesh 9 is properly lifted off the slope b; Fifth, the pouring of the concrete layer 10 is constructed, and the relative height of the reinforcing mesh 9 in it is not too low.

[0072] In addition, the foundation pit side wall a, the upper bottom surface c, and the main body bottom surface d can all be poured with concrete again, for example, the concrete wall 17 can cover the exposed soil layer between two adjacent supporting piles 12, so that the stability of the foundation pit side wall a is higher.

[0073] The reinforcing structure also includes a transverse beam 11 arranged on the slope b and connected to a plurality of U-shaped steel bars 8.

[0074] In this embodiment, the transverse beam 11 is another form of the above-mentioned subsequent concrete structure, which does not need to use a reinforcing mesh during construction, and the exposed parts of the U-shaped steel bars 8 and the reinforcing bars 2 are the reinforcing framework of the transverse beam 11.

[0075] Correspondingly, the transverse beam 11 can also integrate multiple second inclined channels 4 at the same height into a whole, thereby improving the connection strength of the second inclined channels 4 to the waterproof curtain 13, which can be specifically referred to in the accompanying drawings Figure 8 .

[0076] The opening direction of the U-shaped steel bars 8 is towards the slope b, and the transverse steel bars or inclined steel bars of the reinforcing mesh 9 pass through the position of the limiting hole composed of the U-shaped steel bars 8 and the slope b.

[0077] In this embodiment, as shown in the accompanying drawings Figure 7 The effective welding size between the U-shaped steel bars 8 and the exposed parts of the reinforcing bars 2 can be adjusted, thereby allowing the lifting height of the reinforcing mesh 9 on the slope b to be adjusted.

[0078] On the other hand, the reinforcing mesh 9 can also be welded and fixed at the highest point of the U-shaped steel bars 8, thereby allowing the thickness of the poured concrete layer 10 to be greatly increased, which is very practical.

[0079] A foundation pit supporting part including the above-mentioned reinforcing structure, which includes the supporting piles 12 and the waterproof curtain 13, and further includes an integral beam 14 arranged at the upper end position of a plurality of the supporting piles 12, and a ground surface beam 15 arranged at the upper end position of the waterproof curtain 13.

[0080] In this embodiment, a specific structural composition of the foundation pit supporting part includes: The outer periphery of a water-stop curtain 13, the inner side of a plurality of support piles 12 arranged in a rectangular pattern, and the above-mentioned reinforcement structure.

[0081] The direct effect of the ground beam 15 itself is to make all the support piles 12 on at least one side "integrated".

[0082] The general construction method of the ground beam 15 is that when the support piles 12 are poured with concrete, the liquid level of the concrete is lower than the ground surface e, so that the ground beam 15 forms a transition section in the support pile borehole, and the steel structure in the support pile 12 is connected with the above-mentioned transition section.

[0083] Further, the steel structure of the support pile 12 is directly tied or welded with the steel structure of the ground beam 15, further increasing the connection strength of the ground beam 15 and all the support piles 12.

[0084] The foundation pit support part further comprises a cast-in-place concrete connecting plate 16 arranged on the integral beam 14 and the ground beam 15 and vertically projected on the inclined channel 1, and used to form a concrete closed frame together with the support pile 12, the cast-in-place concrete column 3 and the water-stop curtain 13. In the embodiment, the above-mentioned concrete closed frame includes four sides, namely: The cast-in-place concrete connecting plate 16, part of the support pile 12, the cast-in-place concrete column 3, and part of the water-stop curtain 13.

[0085] The above-mentioned concrete closed frame can greatly improve the lateral position stability of the water-stop curtain 13, which is particularly important for the water-stop curtain 13 arranged independently on one side.

[0086] Further, the vertical projections of the cast-in-place concrete connecting plate 16, the inclined channel 1 and the second inclined channel 4 one-to-one correspond, that is, the number and position are all the same, only the respective lengths and thicknesses are different, finally making the stress of the above-mentioned concrete closed frame more uniform and the stability of itself greater.

[0087] The embodiments of the application are described in detail above in combination with the drawings, but the application is not limited to the above-mentioned embodiments, and various modifications can be made within the knowledge of those skilled in the art without departing from the purpose of the application. These are all non-creative modifications, and are protected by the patent law within the scope of the claims of the application.

Claims

1. A reinforcement structure, characterized in that: The invention comprises an inclined channel (1) opened inwardly on the side wall (a) of a foundation pit and / or a supporting pile (12), with the end point located on a water-stop curtain (13), a reinforcing steel bar (2) arranged in the inclined channel (1), and a cast-in-place concrete column (3) arranged in the inclined channel (1), wherein the type of the water-stop curtain (13) is a bored interlocking pile, and in a cross section at the same height, the center distance (L) between the supporting pile (12) and the water-stop curtain (13) is 0.5-3.5m.

2. A reinforcement structure according to claim 1, characterized in that: It also includes a second inclined channel (4) opened inwardly on the slope (b), with the end point located on the water-stop curtain (13), and provided with the reinforcing steel bars (2) and the cast-in-place concrete column (3).

3. A reinforcement structure according to claim 1, characterized in that: It also includes an anchor (5) provided at a rear end position in the insertion direction exposed on the reinforcing steel bar (2), and a support pile connecting plate (6) provided on the reinforcing steel bar (2), fastened by the anchor (5), and used to reinforce the support pile (12).

4. A reinforcement structure according to claim 3, characterized in that: It also includes a mounting hole (7) provided on the support pile connecting plate (6) and used for passing the reinforcing steel bar (2).

5. The reinforcement structure according to claim 2, characterized in that: The number of the reinforcing steel bars (2) in the second inclined channel (4) is two; and the second inclined channel (4) further comprises a U-shaped steel bar (8) disposed at the rear end positions of the two reinforcing steel bars (2) exposed in the insertion direction and used to connect the two reinforcing steel bars (2) to each other.

6. A reinforcement structure according to claim 5, characterized in that: It also includes a steel mesh (9) arranged on the side slope (b) and connected to the U-shaped steel bars (8), and a poured concrete layer (10) arranged on the side slope (b).

7. The reinforcement structure according to claim 5, characterized in that: It also includes a transverse beam (11) arranged on the slope (b) and connecting a plurality of the U-shaped steel bars (8).

8. The reinforcement structure according to claim 6, characterized in that: The opening direction of the U-shaped steel bar (8) faces the side slope (b), and the transverse steel bars or inclined steel bars of the steel mesh (9) pass through the position of the limiting hole formed by the U-shaped steel bar (8) and the side slope (b).

9. A foundation pit support component comprising the reinforcement structure according to any one of claims 1 to 8, the structure comprising the support piles (12) and a water-stop curtain (13), characterized in that: It also includes an integral beam (14) arranged at the upper end of a plurality of the support piles (12), and a surface beam (15) arranged at the upper end of the water-stop curtain (13).

10. The foundation pit supporting component including a reinforcement structure according to claim 9, characterized in that: It also includes a cast-in-situ concrete connecting plate (16) which is arranged on the integral beam (14) and the surface beam (15), has a vertical projection falling on the inclined channel (1), and is used to form a concrete closed frame together with the support piles (12), the cast-in-situ concrete columns (3) and the water-stop curtain (13).

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