Prefabricated part assembly structure applied underground and underground diaphragm wall

Abstract

The utility model discloses a prefabricated part assembly structure applied underground and an underground diaphragm wall, which comprise a vertical prefabricated part, more than one first anti-shearing part used for external connection, more than one connecting steel bar used for external connection and more than one second anti-shearing part used for external connection, at least part of the connecting steel bars are located above and / or below the first shear-resistant piece. One end of the transverse prefabricated part is away from the vertical prefabricated part by a preset length, and more than one second shear-resistant part is embedded in the transverse prefabricated part; wherein the first anti-shearing piece is connected with the second anti-shearing piece, and the connecting steel bar is connected with a main bar of the transverse prefabricated component through a connecting assembly; a first cast-in-place area is arranged between the transverse prefabricated part and the vertical prefabricated part, and the pre-buried depth of the first shear-resistant part and / or the second shear-resistant part is larger than the outward extending length. According to the utility model, the assembly rate is improved, and the construction period is shortened; the first anti-shearing piece, the second anti-shearing piece and the connecting assembly are connected, and the first cast-in-place area is arranged, so that the connecting stability is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to the prefabricated component technical field for being applied to underground, specifically is prefabricated component assembly structure for being applied to underground and underground continuous wall. BACKGROUND

[0002] At present, prefabricated components are widely applied to aboveground buildings, such as prefabricated walls, prefabricated staircases and the like. Underground building structures are usually formed by cast-in-place methods that first arrange reinforcement cages and then pour concrete at the construction site, for example, Chinese patent CN105672354A discloses a cast-in-place ground wall and cast-in-place subway station construction integration method. Although underground building structures using cast-in-place methods can ensure building stability, the assembly rate is low and the construction period is long. SUMMARY

[0003] The utility model aims at providing prefabricated component assembly structure for being applied to underground to solve the technical problem of low assembly rate and long construction period of prior art underground building structures.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0005] Prefabricated component assembly structure for being applied to underground, comprising:

[0006] Vertical prefabricated component, one side wall in the thickness direction of which is embedded with one or more first shear members for external connection and one or more connecting steels for external connection, and at least part of the connecting steels are located above and / or below the first shear members;

[0007] Horizontal prefabricated component, one end of which is at a predetermined length from the vertical prefabricated component and is embedded with one or more second shear members;

[0008] Wherein, the first shear members are connected with the second shear members, and the connecting steels are connected with the main steels of the horizontal prefabricated component through the connecting assembly;

[0009] The first cast-in-place area is arranged between the horizontal prefabricated component and the vertical prefabricated component, and the embedded depth of the first shear members and / or the second shear members is greater than the external extension length.

[0010] Compared with the prior art, the utility model have the beneficial effects that: vertical prefabricated component, transverse prefabricated component are prior prefabricated component, compared with cast-in-place mode formation underground building structure, the utility model improves assembly rate, compresses construction period, first shear member connects second shear member, to ensure that the shear strength, connecting strength between vertical prefabricated component and transverse prefabricated component, connecting assembly is connected between connecting steel bar and the main reinforcement of transverse prefabricated component, further ensure that vertical prefabricated component and transverse prefabricated component are firmly connected, first cast-in-place area is established between transverse prefabricated component and vertical prefabricated component, still further improve the connecting strength of both, and the embedded depth of first shear member and / or second shear member is greater than the outer extension length, ensure first shear member and / or second shear member connecting stability.

[0011] On the basis of the above-mentioned scheme, two or more first shear members are distributed along the width direction and / or length direction of the vertical prefabricated component.

[0012] On the basis of the above-mentioned scheme, the first shear member comprises a connecting seat embedded in the vertical prefabricated component, a connecting block connected to the connecting seat and located on the side of the connecting seat close to the transverse prefabricated component, and the second shear member is provided with an exposed end, wherein,

[0013] The connecting block and the exposed end of the second shear member are provided with one or more screw holes distributed along the vertical direction and / or the horizontal direction, and the connecting block and the exposed end of the second shear member are fixedly connected through bolts and nuts.

[0014] On the basis of the above-mentioned scheme, the connecting seat comprises a base embedded at least partially in the vertical prefabricated component, and two or more connecting rods embedded in the vertical prefabricated component, one end of the connecting rod being connected to the side of the base away from the transverse prefabricated component.

[0015] On the basis of the above-mentioned scheme, the connecting rod and / or the connecting steel bar are L-shaped and / or T-shaped and / or Y-shaped.

[0016] On the basis of the above-mentioned scheme, further comprising a prefabricated floor provided on the transverse prefabricated component and embedded with a bent steel bar;

[0017] A part of the number of connecting steel bars are connected with the bent steel bar through the connecting assembly;

[0018] And / or, a second cast-in-place area is provided between the prefabricated floor and the vertical prefabricated component, and the second cast-in-place area is communicated with the first cast-in-place area.

[0019] On the basis of the above-mentioned scheme, further comprising a positioning support provided on the side wall of the vertical prefabricated component and located below the transverse prefabricated component, wherein the positioning support comprises a fixed part, a supporting part for supporting the transverse prefabricated component and / or the first cast-in-place area, and a reinforcing rib connecting the fixed part and the supporting part respectively.

[0020] On the basis of the above scheme, a fixing assembly for fixing the positioning support is further included, the fixing assembly includes a threaded sleeve embedded in the vertical prefabricated component, and a bolt matched with the threaded sleeve, wherein:

[0021] The fixed part is provided with a threaded hole, and the bolt is screwed with the threaded sleeve through the threaded hole of the fixed part.

[0022] On the basis of the above scheme, the connecting assembly includes two connecting steel bars, a bent steel bar, a connecting nut, a ball head screw rod, a connecting nut, a locking nut, and a double-end screw rod.

[0023] Another object of the present application is to provide an underground continuous wall, comprising the prefabricated component assembly applied to the underground as described above, wherein the number of vertical prefabricated components is two or more, and the two or more vertical prefabricated components are connected in sequence along the width direction.

[0024] The underground continuous wall provided by the present application comprises the prefabricated component assembly applied to the underground as described above, and thus has the same functions as the prefabricated component assembly applied to the underground. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 The structure diagram of the prefabricated component assembly applied to the underground in the embodiment;

[0026] Figure 2 The structure diagram of the first shear member and the second shear member;

[0027] Figure 3 The structure diagram of the first shear member and the second shear member; Figure 1 The enlarged view of the A part in the middle;

[0028] Figure 4 The structure diagram of the prefabricated component assembly applied to the underground in the embodiment;

[0029] Figure 5 The cooperation diagram of the positioning support and the fixing assembly;

[0030] Figure 6 The structure diagram of the fixing assembly;

[0031] Figure 7 The structure diagram of the positioning support.

[0032] In the drawings:

[0033] 1. vertical prefabricated component; 11. first shear member; 111. connecting seat; 111a. base; 111b. connecting rod; 112. connecting block; 112a. screw hole; 12. connecting steel bar;

[0034] 2. horizontal prefabricated component; 21. second shear member; 211. exposed end; 22. main steel bar;

[0035] 3. first cast-in-place area;

[0036] 4. prefabricated floor slab; 41. bent steel bar;

[0037] 5. second cast-in-place area;

[0038] 6. connecting assembly; 61. connecting steel bar nut; 62. ball head screw; 63. connecting nut; 64. locking nut; 65. double-end screw;

[0039] 7. positioning support; 71. fixed part; 72. supporting part; 73. reinforcing rib;

[0040] 8. fixing assembly; 81. embedded steel bar; 82. threaded sleeve; 83. bolt. DETAILED DESCRIPTION

[0041] In order to make the person skilled in the art better understand the technical scheme of the present application, the present application will be further described in detail below in combination with the drawings and specific embodiments.

[0042] In this document, the terms "upper", "lower", "inner", "outer" and the like are established based on the positional relationship shown in the drawings, and according to the different drawings, the corresponding positional relationship may also change accordingly, therefore, it cannot be understood as an absolute limitation on the scope of protection; moreover, the relationship terms such as "first" and "second" are only used to distinguish one component from another component with the same name, and do not necessarily require or imply any such actual relationship or order between the components.

[0043] Example one

[0044] Referring to Figure 1 , Figure 2 , Figure 3The embodiment provides a prefabricated component assembly structure applied to an underground building, which comprises a vertical prefabricated component 1 and a horizontal prefabricated component 2, a side wall of the vertical prefabricated component 1 in a thickness direction is embedded with more than one first shear member 11 for external connection, more than one connecting steel bar 12 for external connection, and at least part of the connecting steel bars 12 are located above and / or below the first shear member 11; one end of the horizontal prefabricated component 2 is away from the vertical prefabricated component 1 by a predetermined length and is embedded with more than one second shear member 21; wherein the first shear member 11 is connected with the second shear member 21, and the connecting steel bar 12 is connected with a main steel bar 22 of the horizontal prefabricated component 2 through a connecting assembly 6; a first cast-in-place area 3 is arranged between the horizontal prefabricated component 2 and the vertical prefabricated component 1, and the embedded depth of the first shear member 11 and / or the second shear member 21 is greater than the external extension length.

[0045] The vertical prefabricated component 1 and the horizontal prefabricated component 2 are both concrete prefabricated components with built-in steel cages. Compared with the cast-in-place method, the prefabricated component method improves the assembly rate and compresses the construction period. The first shear member 11 connecting the second shear member 21 ensures the shear strength and connecting strength between the vertical prefabricated component 1 and the horizontal prefabricated component 2. The connecting steel bar 12 and the main steel bar 22 of the horizontal prefabricated component 2 are connected through the connecting assembly 6, which further ensures the firm connection and force transmission between the vertical prefabricated component 1 and the horizontal prefabricated component 2. The first cast-in-place area 3 arranged between the horizontal prefabricated component 2 and the vertical prefabricated component 1 connects the two into one whole, further improving the connecting strength of the two. The embedded depth of the first shear member 11 and / or the second shear member 21 is greater than the external extension length, which ensures the connecting stability of the first shear member 11 and / or the second shear member 21.

[0046] Specifically, referring to Figure 1 , the vertical prefabricated component 1 can be a prefabricated pile, a prefabricated column or the like, and the vertical component plays a role in mainly bearing vertical force in the underground building structure, and the shape and structure of the vertical prefabricated component 1 are not strictly limited, and the vertical prefabricated component 1 is preferably a sheet pile. Referring to Figure 1 , the horizontal prefabricated component 2 can be a prefabricated beam, a prefabricated wall plate or the like, which can have the performance of bearing vertical force or not, and is not strictly limited herein. Referring to Figure 1 , the length direction of the vertical prefabricated component 1 is the vertical direction, and the thickness direction of the vertical prefabricated component 1 is the direction perpendicular to the length direction. Referring to Figure 1 , Figure 2 , the first shear member 11 and the second shear member 21 refer to shear members with shear performance meeting the actual engineering needs, referring to Figure 1 , Figure 3The connecting assembly 6 refers to a connecting piece with connecting performance meeting the actual needs of engineering. The material, shape, structure, shear performance, connecting performance, etc. of the first shear member 11, the second shear member 21, and the connecting assembly 6 are not strictly limited and can be selected according to the actual needs of engineering. See Figure 1 , Figure 2 The first shear member 11 and / or the second shear member 21 has a pre-embedded depth greater than an outer extension length refers to that the length of the first shear member 11 and / or the second shear member 21 pre-embedded in the concrete is greater than the length of the outer extension (i.e. the outer end exposed) out of the concrete. See Figure 1 The first cast-in-place area 3 is located between the transverse prefabricated member 2 and the vertical prefabricated member 1. Therefore, the connecting area of the first shear member 11 and the second shear member 21 and the connecting assembly 6 are located in the space where the first cast-in-place area 3 is located, i.e. the transverse prefabricated member 2 and the vertical prefabricated member 1 are first connected by the first shear member 11, the second shear member 21, and the connecting assembly 6, and then the concrete is poured to form the first cast-in-place area 3.

[0047] On the basis of the above-mentioned scheme, two or more first shear members 11 are distributed along the width direction and / or the length direction of the vertical prefabricated member 1 to ensure that the vertical prefabricated member 1 is connected with the transverse prefabricated member 2 and has good shear performance.

[0048] On the basis of the above-mentioned scheme, see Figure 1 , Figure 2 The first shear member 11 includes a connecting seat 111 pre-embedded in the vertical prefabricated member 1, a connecting block 112 connected with the connecting seat 111 and located on the side of the connecting seat 111 close to the transverse prefabricated member 2, and the second shear member 21 is provided with an exposed end 211. The connecting block 112 and the exposed end 211 of the second shear member 21 are provided with one or more screw holes 112a distributed along the vertical direction and / or the horizontal direction, and the connecting block 112 and the exposed end 211 are fixedly connected by bolts 83 and nuts. The connecting seat 111 includes a base 111a at least partially pre-embedded in the vertical prefabricated member 1 and two or more connecting rods 111b pre-embedded in the vertical prefabricated member 1, one end of the connecting rod 111b being connected with the side of the base 111a away from the transverse prefabricated member 2.

[0049] On the basis of the above-mentioned scheme, see Figure 1 , Figure 3 , Figure 4 The connecting rod 111b and / or the connecting steel bar 12 are L-shaped and / or T-shaped and / or Y-shaped to ensure that the connecting rod 111b and / or the connecting steel bar 12 are firmly pre-embedded in the concrete.

[0050] On the basis of the above-mentioned scheme, see Figure 1The prefabricated component assembly structure for underground use provided by the embodiment further comprises a prefabricated floor 4, the prefabricated floor 4 is arranged on the horizontal prefabricated component 2 and is embedded with a bent reinforcing bar 41, the bent reinforcing bar 41 is connected with the main reinforcing bar 22 of the prefabricated floor 4 and / or a reinforcing cage of the prefabricated floor 4, and a part of the connecting reinforcing bars 12 of the vertical prefabricated component 1 is connected with the bent reinforcing bar 41 through the connecting assembly 6.

[0051] On the basis of the above scheme, the prefabricated floor 4 and the vertical prefabricated component 1 are provided with a second cast-in-place area 5 to ensure that the prefabricated floor 4 and the vertical prefabricated component 1 are connected as a whole, and the second cast-in-place area 5 is communicated with the first cast-in-place area 3 to make the vertical prefabricated component 1, the horizontal prefabricated component 2 and the prefabricated floor 4 form a whole.

[0052] On the basis of the above scheme, referring to Figures 4 to 7 The prefabricated component assembly structure for underground use provided by the embodiment further comprises a positioning and supporting assembly 7, the positioning and supporting assembly 7 is arranged on the side wall of the vertical prefabricated component 1 and is located below the horizontal prefabricated component, wherein the positioning and supporting assembly 7 comprises a fixed part 71, a supporting part 72 for supporting the horizontal prefabricated component 2 and / or the first cast-in-place area 3, and a reinforcing rib 73 connecting the fixed part 71 and the supporting part 72 respectively. In the embodiment, the positioning and supporting assembly 7 has the dual functions of positioning and supporting, specifically, the positioning and supporting assembly 7 is installed at a preset height position of the vertical prefabricated component 1, and then the horizontal prefabricated component 2 is placed on the positioning and supporting assembly 7 to realize the positioning and supporting of the horizontal prefabricated component 2, and the positioning and supporting assembly 7 is located below the first cast-in-place area 3, thus can serve as a formwork and support required for pouring the first cast-in-place area 3.

[0053] On the basis of the above scheme, referring to Figures 4 to 6 The prefabricated component assembly structure for underground use provided by the embodiment further comprises a fixing assembly 8 for fixing the positioning and supporting assembly 7, the fixing assembly 8 comprises a threaded sleeve 82 embedded in the vertical prefabricated component 1, a bolt 83 matched with the threaded sleeve 82, and a pre-embedded reinforcing bar 81 embedded in the vertical prefabricated component 1 and installed on the threaded sleeve 82, wherein the fixed part 71 is provided with a threaded hole 112a, the bolt 83 is screwed with the threaded sleeve 82 through the threaded hole 112a of the fixed part 71, so as to ensure that the positioning and supporting assembly 7 is firmly installed on the vertical prefabricated component 1 and is convenient to be removed after the horizontal prefabricated component 2 is connected with the vertical prefabricated component 1.

[0054] On the basis of the above scheme, referring to Figure 1 , Figure 3 , Figure 4The connecting assembly 6 comprises two connecting nuts 61 respectively connecting the connecting steel bars 12, the main steel bars 22 of the transverse prefabricated component 2 or the bent steel bars 41, a ball screw rod 62 screwed at one end of the connecting nut 61, a connecting nut 63 sleeved on the ball screw rod 62 and clamped with the ball head end of the ball screw rod 62, a locking nut 64 sleeved on the ball screw rod 62 and abutting against the connecting nut 63, and a double-end screw rod 65 screwed at two ends of the two connecting nuts 63.

[0055] Embodiment Two

[0056] The same parts in the embodiment are given the same reference numerals and the same description is omitted.

[0057] Compared with the embodiment one, the underground continuous wall provided in the embodiment has the following different structural design:

[0058] The underground continuous wall provided in the embodiment comprises the prefabricated component assembly structure applied to the underground in the embodiment one, wherein the number of the vertical prefabricated components 1 is two or more, and the two or more vertical prefabricated components 1 are connected in sequence along the width direction to form the underground continuous wall.

[0059] In the embodiment, the connecting form between the adjacent vertical prefabricated components 1 is not strictly limited, for example, the two ends of each vertical prefabricated component 1 in the width direction are respectively provided with a male connecting end and a female connecting end matched with each other, and the adjacent two vertical prefabricated components 1 are spliced through the male connecting end and the female connecting end, and for another example, in the width direction, the two are connected through a connecting piece, and the shape and structure of the connecting piece are not strictly limited, as long as the connecting performance can meet the actual needs of the engineering, and preferably, the connecting assembly 6 in the embodiment one is used for connection.

[0060] In the embodiment, the width direction refers to the direction perpendicular to the length of the vertical prefabricated component 1, the width direction and the thickness direction of the vertical prefabricated component 1 are both perpendicular to the length direction, and the width direction and the thickness direction are two different directions and have a certain angle, and preferably, the angle is 90 degrees. For example, when the vertical prefabricated component 1 is a prefabricated sheet pile, the vertical direction is the length direction of the prefabricated sheet pile, the thickness direction is the thickness direction of the prefabricated sheet pile, and the width direction is the width direction of the prefabricated sheet pile.

[0061] The underground continuous wall provided in the embodiment comprises the prefabricated component assembly structure applied to the underground in the embodiment one, and thus has the same functions as the prefabricated component assembly structure applied to the underground, and the adjacent vertical prefabricated components 1 are connected through the male connecting end and the female connecting end and / or connected through the connecting piece, so that the assembly rate is improved, and the connection is firm and convenient.

[0062] Any technical features in the above-described embodiments can be combined in any manner, and, for the sake of brevity, the foregoing description has not described all possible combinations of the technical features. However, it is contemplated that the scope of the disclosure encompasses all possible combinations of the technical features.

Claims

1. A prefabricated component assembly structure for application to the ground, characterized by The application relates to a vertical prefabricated component, a horizontal prefabricated component and a connecting assembly. The vertical prefabricated component is provided with one or more first shear members and one or more connecting steel bars embedded in a side wall of the vertical prefabricated component in a thickness direction, and at least part of the connecting steel bars are arranged above and / or below the first shear members. The horizontal prefabricated component is provided with one or more second shear members embedded in one end of the horizontal prefabricated component at a predetermined length from the vertical prefabricated component. The first shear members are connected with the second shear members, and the connecting steel bars are connected with main steel bars of the horizontal prefabricated component through the connecting assembly. The horizontal prefabricated component and the vertical prefabricated component are provided with a first cast-in-place area, and the embedded depth of the first shear members and / or the second shear members is greater than the external extension length.

2. The prefabricated component assembly structure for use in ground according to claim 1, wherein Two or more first shear members are arranged along a width direction and / or a length direction of the vertical prefabricated component.

3. The prefabricated component assembly structure for underground use according to claim 1, wherein The first shear members are provided with a connecting seat embedded in the vertical prefabricated component and a connecting block connected with the connecting seat and arranged on a side of the connecting seat close to the horizontal prefabricated component, and the second shear members are provided with exposed ends. The connecting block and the exposed ends of the second shear members are provided with one or more screw holes arranged in a vertical direction and / or a horizontal direction, and the connecting block and the exposed ends of the second shear members are connected through bolts and nuts.

4. The precast component assembly structure for use in ground according to claim 3, wherein The connecting seat is provided with a base embedded in the vertical prefabricated component and two or more connecting rods embedded in the vertical prefabricated component, and one end of the connecting rod is connected with a side of the base away from the horizontal prefabricated component.

5. The prefabricated component assembly structure for use in ground according to claim 4, wherein The connecting rod and / or the connecting steel bar is in an L shape and / or a T shape and / or a Y shape.

6. The precast component assembly structure for use in ground according to claim 5, wherein The application further relates to a prefabricated floor slab provided on the horizontal prefabricated component and provided with bent steel bars. Part of the connecting steel bars are connected with the bent steel bars through the connecting assembly. The prefabricated floor slab and the vertical prefabricated component are provided with a second cast-in-place area, and the second cast-in-place area is communicated with the first cast-in-place area.

7. The prefabricated component assembly structure for underground use according to claim 1, wherein The application further relates to a positioning support arranged on a side wall of the vertical prefabricated component and below the horizontal prefabricated component, and the positioning support is provided with a fixing part, a supporting part for supporting the horizontal prefabricated component and / or the first cast-in-place area, and a reinforcing rib connecting the fixing part and the supporting part.

8. The prefabricated component assembly structure for use in ground according to claim 7, wherein The application further relates to a fixing assembly for fixing the positioning support, and the fixing assembly is provided with a threaded sleeve embedded in the vertical prefabricated component and a bolt matched with the threaded sleeve. The fixing part is provided with a screw hole, and the bolt is screwed with the threaded sleeve through the screw hole of the fixing part.

9. The prefabricated component assembly structure for underground use according to claim 6, wherein The connecting assembly is provided with a connecting nut connected with the connecting steel bars, main steel bars of the horizontal prefabricated component or the bent steel bars, a ball head screw rod screwed with one end of the connecting nut, a connecting nut sleeved on the ball head screw rod and clamped with a ball head end of the ball head screw rod, a locking nut sleeved on the ball head screw rod and abutting against the connecting nut, and a double-end screw rod screwed with two connecting nuts.

10. A diaphragm wall characterised in that, The prefabricated member assembly structure for use in the ground according to any one of claims 1 to 9, wherein the number of the vertical prefabricated members is two or more, and the two or more vertical prefabricated members are connected in sequence in the width direction thereof.

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