Water-stop belt fixing device for tunnel bottom plate and low side wall construction joint
By designing a water stop belt fixing device for tunnel bottom plate and low side wall construction joints, the problem of displacement caused by unfixed water stop belts in the prior art is solved, and high-quality construction and cost reduction are achieved.
Patent Information
- Application Number
- CN202421494932.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-27
- Publication Date
- 2025-02-25
- Estimated Expiration
- 2034-06-27
AI Technical Summary
In the prior art, the water stops located in the post-cast concrete do not take fixed measures, resulting in easy displacement under the impact force of concrete pouring, affecting the construction quality of the water stops.
A water stop belt fixing device for tunnel base plate and low side wall construction joint is designed, including a first clamping plate and a second clamping plate, which is connected to each other through connecting bolts, connecting nuts and connecting holes, and clamped to The upper and lower sides of the water stop are fixed by mounting plates and vertical upright poles to ensure that the water stop does not displace during the concrete pouring process.
The water stop in the post-cast concrete is effectively fixed to prevent displacement under the impact force of concrete pouring, improve the construction quality of the water stop, and can be recycled as a plug formwork to reduce construction costs.
Smart Images
Figure CN222526324U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of tunnel construction, in particular to a water stop belt fixing device used for construction joints of a tunnel bottom plate and a low side wall. Background Art
[0002] A gate-type tunnel is a tunnel whose cross-section is round on top and square on the bottom. It is also called a round arch straight-wall tunnel or a city gate-type tunnel.
[0003] Construction joints refer to the joints formed between the first and last poured concrete during the concrete pouring process due to design requirements or construction needs. However, construction joints are not real "joints". They are just a bonding surface between the first poured concrete and the last poured concrete because the first poured concrete exceeds the initial setting time. This bonding surface is called a construction joint.
[0004] Rubber waterstop is mainly used in foundation projects where it is installed in construction joints and deformation joints when concrete is cast in place and becomes one with the concrete structure, such as underground facilities, tunnels, culverts, water transfer aqueducts, dams, liquid storage structures, etc.
[0005] During the concrete lining construction of the city gate tunnel, in order to speed up the construction progress, the bottom plate and the low side wall must often be constructed in advance, and the side arch lining will be constructed later, so that the construction of the bottom plate and the low side wall does not occupy the linear construction period. Due to the need to ensure the quality of concrete pouring, the two adjacent sections of concrete will be poured in time, and a construction joint will be formed between the front and rear poured concrete; waterstops are often used at the construction joints for waterproofing. In the prior art, half of the waterstop is often in the concrete poured first, and the other half is in the concrete poured later; before the first poured concrete is poured, this half of the waterstop is first fixed by a steel bar clamp, and then the concrete is poured directly; in this case, since the other half of the waterstop in the concrete poured later has not been fixed, it is easy to be displaced under the impact of concrete pouring, so the construction quality of the waterstop cannot be guaranteed.
[0006] Therefore, a waterstop fixing device for use at construction joints of tunnel bottom plates and low side walls is proposed to solve the above technical problems. Utility Model Content
[0007] The technical problem solved by the utility model is that in the prior art, no fixing measures are taken for the waterstop located in the post-poured concrete, which leads to easy displacement under the impact force of concrete pouring, thus affecting the construction quality of the waterstop.
[0008] In order to solve the above technical problems, the technical solutions adopted by the present utility model are as follows:
[0009] A water stop fixing device for tunnel bottom plate and short side wall construction joints, comprising a first clamping plate, the first clamping plate comprising a first plate body and a second plate body arranged at the end of the first plate body, the first plate body and the second plate body being perpendicular to each other; a first connecting hole is further provided at one end of the first plate body away from the second plate body; two clamping plates are arranged back to back to clamp at the upper and lower sides of the horizontal water stop of the exposed part, and are connected to each other through connecting bolts, connecting nuts and the first connecting holes; a vertical first sleeve is further provided on the second plate body, and a first through hole is further provided on the side wall of the first sleeve;
[0010] It also includes a mounting plate placed on the ground, a vertical pole is provided on the mounting plate, the first sleeve is sleeved on the outside of the vertical pole, and the positioning bolt is screwed into the first through hole and pressed against the vertical pole;
[0011] It also includes a second clamping plate, including a third plate body and a fourth plate body arranged at the end of the third plate body, the third plate body and the fourth plate body are perpendicular to each other; the second clamping plates are arranged back to back to clamp on both sides of the vertical waterstop of the exposed part, and are connected to each other through connecting bolts, connecting nuts and second connecting holes; the third plate body is provided with a second connecting hole at the end away from the fourth plate body; the two second clamping plates are also provided with a second sleeve parallel to the axis of the third plate body at the end of the third plate body close to the fourth plate body, and the second sleeve wall is also provided with a second through hole; the fourth plate body is also provided with a third connecting hole corresponding to the second sleeve; the vertical rod passes through the third connecting hole and is inserted into the second sleeve, and the positioning bolt is screwed into the second through hole and pressed against the vertical rod.
[0012] Particularly, a reinforcing plate is provided between the first plate body and the second plate body, and between the third plate body and the fourth plate body.
[0013] Particularly, the outer wall of the vertical rod is provided with threads.
[0014] Particularly, the number of the first connection holes and the number of the second connection holes are both two, which are respectively arranged on both sides of the first plate body and the third plate body.
[0015] Compared with the prior art, the utility model has the following advantages and beneficial effects: the utility model has a simple structure and can effectively fix the waterstop in the post-cast concrete, thereby ensuring that the rear half of the waterstop will not be displaced under the impact force of concrete pouring, thereby effectively ensuring the construction quality of the waterstop; at the same time, the utility model can also be recycled as a template for tunnel floor and low side wall concrete lining plugs, effectively reducing construction costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 Schematic diagram of the clamping state of the horizontal waterstop.
[0017] Figure 2It is a top view schematic diagram of the clamping state of the horizontal waterstop.
[0018] Figure 3 Schematic diagram of the clamping state of the vertical waterstop.
[0019] Figure 4 It is a side view schematic diagram of the clamping state of the vertical waterstop.
[0020] The meanings of the numbers in the figure are: first plate body—1; second plate body—2; first connecting hole—3; horizontal waterstop—4; connecting bolt—5; connecting nut—6; first sleeve—7; mounting plate—8; vertical pole—9; positioning bolt—10; third plate body—11; fourth plate body—12; second connecting hole—13; second sleeve—14; third connecting hole—15; reinforcing plate—16; vertical waterstop—17. DETAILED DESCRIPTION
[0021] The following will clearly and completely describe the technical solutions in the embodiments of the utility model in conjunction with the accompanying drawings in the embodiments of the utility model, so as to have a further understanding of the concept of the utility model, the technical problems solved, the technical features constituting the technical solutions and the technical effects brought about.
[0022] like Figure 1 As shown, a water stop fixing device for construction joints of tunnel bottom plates and short side walls comprises a first clamping plate, wherein the first clamping plate comprises a first plate body 1 and a second plate body 2 arranged at the end of the first plate body 1, wherein the first plate body 1 and the second plate body 2 are perpendicular to each other; a first connecting hole 3 is further provided at one end of the first plate body 1 away from the second plate body 2; two first clamping plates are arranged back to back to clamp at the upper and lower sides of the horizontal water stop 4 of the exposed part, and are connected to each other through connecting bolts 5, connecting nuts 6 and the first connecting holes 3; a vertical first sleeve 7 is further provided on the second plate body 2, and a first through hole is further provided on the side wall of the first sleeve 7;
[0023] It also includes a mounting plate 8 placed on the ground, a vertical pole 9 is provided on the mounting plate 8, the first sleeve 7 is sleeved outside the vertical pole 9, and a positioning bolt 10 is screwed into the first through hole and pressed against the vertical pole 9;
[0024] It also includes a second clamping plate, including a third plate body 11 and a fourth plate body 12 arranged at the end of the third plate body 11, and the third plate body 11 and the fourth plate body 12 are perpendicular to each other; the second clamping plates are arranged back to back to clamp the two sides of the vertical water stop belt 17 of the exposed part, and are connected to each other through connecting bolts 5, connecting nuts 6 and second connecting holes 13; the third plate body 11 is provided with a second connecting hole 13 at the end away from the fourth plate body 12; the third plate body 11 of the two second clamping plates is also provided with a second sleeve 14 axially parallel to the third plate body 11 at the end close to the fourth plate body 12, and the second sleeve 14 is also provided with a second through hole on the wall; the fourth plate body 12 is also provided with a third connecting hole 15 corresponding to the second sleeve 14; the vertical rod 9 passes through the third connecting hole 15 and is inserted into the second sleeve 14, and the positioning bolt 10 is screwed into the second through hole and pressed against the vertical rod 9.
[0025] The main working principle of the utility model is as follows: Figure 1 and Figure 2 As shown, for the exposed horizontal waterstop 4, two first clamping plates consisting of the first plate body 1 and the second plate body 2 are clamped on the upper and lower sides of the horizontal waterstop 4 respectively, and connected as a whole through the first connecting hole 3 and the connecting bolt 5, and the connecting nuts 6 are used to lock the ends of the connecting bolts 5 to complete the clamping of the main part. It should be noted that the first clamping plate clamps the horizontal waterstop 4 from the side of the U-shaped rubber waterstop, and the first connecting hole 3 is located outside the projection range of the horizontal waterstop 4, so as to avoid the connection bolt 5 from affecting the waterstop. Then, through the mounting plate 8 fixed to the ground, the vertical first sleeve 7 on the second plate body 2 of the first clamping plate located below the horizontal water stop 4 is sleeved on the outside of the vertical upright 9 on the mounting plate 8, and the positioning bolt 10 is screwed into the first through hole to press against the vertical upright 9 to complete the fixing of the first clamping plate, thereby connecting the horizontal water stop 4 and the mounting plate 8 as a whole. The mounting plate 8 provides support force for the horizontal water stop 4 to avoid displacement of the water stop caused by the impact during the concrete pouring process. For the vertical water stop 17, the overall principle is similar, such as Figure 3 and Figure 4As shown, the difference is that the fixed position of the second sleeve 14 on the second clamping plate used to clamp the vertical waterstop 17 is different. Since the second clamping plate itself is located on both sides of the vertical waterstop 17 when the second clamping plate is used to clamp the vertical waterstop 17, the vertical rod 9 on the mounting plate 8 is connected to the second sleeve 14 on the second clamping plate located on the outside of the waterstop. During the connection process, in order to avoid affecting the waterstop as a whole, the vertical rod 9 is passed through the third connecting hole 15 of the fourth plate body 12 after staggering the position of the waterstop, and then inserted into the second sleeve 14 after passing through the third connecting hole 15. The positioning bolt 10 is screwed into the second through hole and then pressed against the vertical rod 9 to complete the clamping of the vertical waterstop 17. In this process, the height of the waterstop after clamping can also be adjusted by moving the positions of the first sleeve 7 and the second sleeve 14 on the vertical rod 9 according to the actual elevation position of the waterstop. At the same time, the device of the utility model can also be cyclically used as a template for tunnel bottom plate and short side wall concrete lining plugging, effectively reducing construction costs.
[0026] As a preferred embodiment, a reinforcing plate 16 is provided between the first plate body 1 and the second plate body 2 , and between the third plate body 11 and the fourth plate body 12 .
[0027] This embodiment provides a solution for strengthening the integrity of the first clamping plate and the second clamping plate. The reinforcing plate 16 is a triangle as a whole, and the two right-angled sides respectively press against the first plate body 1 and the second plate body 2, the third plate body 11 and the fourth plate body 12, thereby preventing the first clamping plate and the second clamping plate from deforming.
[0028] As a preferred embodiment, the outer wall of the vertical rod 9 is provided with threads.
[0029] In this embodiment, by providing threads on the outer wall of the vertical rod 9, the friction between the positioning bolt 10 and the vertical rod 9 can be increased, thereby further increasing the stability of the first clamping plate and the second clamping plate during the clamping process.
[0030] As a preferred embodiment, the number of the first connection holes 3 and the number of the second connection holes 13 are both two, which are respectively disposed on both sides of the first plate body 1 and the third plate body 11 .
[0031] In this embodiment, by symmetrically arranging the two first connection holes 3 and the second connection hole 13, the purpose of enhancing the acting force between the two first clamping plates and between the second clamping plates is achieved, and the stability of the clamping is further enhanced.
[0032] The words “connection” and “fixation” appearing in the description of the present invention may refer to fixed connection, processing and forming, welding, or mechanical connection. The specific meanings of the above terms in the present invention shall be understood according to the specific circumstances.
[0033] In the description of the present invention, the terms "center", "upper", "lower", "horizontal", "inner", "outer", etc., which indicate the orientation or position relationship, are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying a specific orientation that the device or element referred to must have, and therefore cannot be understood as a limitation on the present invention.
[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in the field should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.
Claims
1. A water stop fixing device for tunnel bottom plate and low side wall construction joints, characterized in that: The invention comprises a first clamping plate, wherein the first clamping plate comprises a first plate body (1) and a second plate body (2) arranged at the end of the first plate body (1), wherein the first plate body (1) and the second plate body (2) are perpendicular to each other; a first connecting hole (3) is also provided at one end of the first plate body (1) away from the second plate body (2); the two first clamping plates are arranged back to back to clamp at the upper and lower sides of the horizontal water stop (4) of the exposed part, and are connected to each other through connecting bolts (5), connecting nuts (6) and the first connecting hole (3); a vertical first sleeve (7) is also provided on the second plate body (2), and a first through hole is also provided on the side wall of the first sleeve (7); It also includes a mounting plate (8) placed on the ground, a vertical pole (9) being provided on the mounting plate (8), the first sleeve (7) being sleeved on the outside of the vertical pole (9), and a positioning bolt (10) being screwed into the first through hole and pressed against the vertical pole (9); It also includes a second clamping plate, including a third plate body (11) and a fourth plate body (12) arranged at the end of the third plate body (11), the third plate body (11) and the fourth plate body (12) being perpendicular to each other; the second clamping plate is arranged to be back-to-back clamped on both sides of the vertical water stop belt (17) of the exposed portion, and are connected to each other through connecting bolts (5), connecting nuts (6) and second connecting holes (13); the third plate body (11) is provided with a second connecting hole (13) at one end away from the fourth plate body (12); The third plate body (11) of the two second clamping plates is also provided with a second sleeve (14) axially parallel to the third plate body (11) at one end thereof close to the fourth plate body (12); the second sleeve (14) is also provided with a second through hole on its wall; the fourth plate body (12) is also provided with a third connecting hole (15) corresponding to the second sleeve (14); the vertical rod (9) passes through the third connecting hole (15) and is then inserted into the second sleeve (14); the positioning bolt (10) is screwed into the second through hole and then pressed against the vertical rod (9).
2. A water stop fixing device for a tunnel bottom plate and a low side wall construction joint as claimed in claim 1, characterized in that: A reinforcing plate (16) is provided between the first plate body (1) and the second plate body (2), and between the third plate body (11) and the fourth plate body (12).
3. A water stop fixing device for tunnel bottom plate and short side wall construction joints as claimed in claim 1, characterized in that: The outer wall of the vertical rod (9) is provided with threads.
4. A water stop strip fixing device for tunnel bottom plate and short side wall construction joints as claimed in claim 1, characterized in that: The first connection holes (3) and the second connection holes (13) are both in number of two and are respectively arranged on both sides of the first plate body (1) and the third plate body (11).