Fixed mounting structure based on inverted arch side wall

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By installing a combination structure of fixed steel bars and fixed rings on the side walls of the tunnel invert, combined with positioning clamps and adjustment structures, the problem of positional displacement of the transverse drainage pipes and steel plate waterstops during concrete pouring was solved, ensuring normal drainage of the tunnel and ensuring construction quality.

CN223344108UActive Publication Date: 2025-09-16CHINA RAILWAY ELEVENTH BUREAU GROUP FIFTH ENGINEERING CO LTD +2

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Patent Information

Application Number: CN202423302854.3
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2024-12-31
Publication Date: 2025-09-16
Estimated Expiration: 2034-12-31

AI Technical Summary

Technical Problem

During the construction of the tunnel invert, the transverse drainage pipes are prone to position displacement during the concrete pouring process, affecting the normal drainage function and construction quality of the tunnel.

Method used

A combined structure of fixed steel bars and fixed rings is adopted. The fixed rings and fixed steel bars are welded together and tied to the side wall steel bars with fixing strips to ensure the accurate positioning of the horizontal drainage pipes. At the same time, positioning clamps and adjustment structures are used to fix the steel plate waterstop to ensure that it does not shift during the concrete pouring process.

Benefits of technology

It effectively prevents the position of the horizontal drainage pipe and the steel plate water stop from shifting during concrete pouring, ensures the accuracy of the position of the drainage holes, and ensures the normal drainage function and construction quality of the tunnel.

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Abstract

The fixed installation structure based on the inverted arch side wall comprises a fixed steel bar and three fixed rings, each fixed ring is formed by bending a metal material into a circle, the two ends of each fixed ring are folded and welded together, the outer side of the top of each fixed ring is welded to the fixed steel bar, and the outer side of the top of each fixed ring is welded to the fixed steel bar. The size of an inner hole of the fixing ring is matched with the outer diameter of the transverse drainage pipe, the transverse drainage pipe can be inserted into the fixing ring, the two ends of the fixing steel bars are bound to the side wall steel bars through fixing strips correspondingly, and the upper ends of the fixing strips are bound to longitudinal steel bars and vertical steel bars of the side wall steel bars correspondingly. The lower end of the fixing strip bypasses a pipe body of the transverse drainage pipe and is wound for at least two circles; the basic connection strength can be guaranteed through welding, the transverse drainage pipe is fixed through steel bar binding, the situation that the accuracy of the pre-buried position of the transverse drainage pipe deviates during concrete pouring can be avoided, it is guaranteed that the position of a drainage hole is correct, sloping is avoided, the normal drainage function of a tunnel and the construction quality of the tunnel are guaranteed, manufacturing is easy, and operation is convenient.

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Description

Technical Field

[0001] The utility model relates to the technical field related to an inverted arch side wall fixing structure, in particular to a fixing installation structure based on an inverted arch side wall. Background Art

[0002] A longitudinal drainage pipe is provided at the bottom end of the waterproof filter layer of the short side wall of the tunnel invert arch. The longitudinal drainage pipe is provided with a seepage hole. The longitudinal drainage pipe is provided with a plurality of transverse drainage pipes connected thereto along the length direction of the tunnel. The ends of the transverse drainage pipes extend out of the corrugated plate support and are opposite to the drainage ditch to prevent water leakage. After the water leaking from the lining and carrying sediment is filtered through the waterproof filter layer, the clean water flows into the longitudinal drainage pipe from the seepage hole, preventing the longitudinal drainage pipe from being blocked by sediment. Moreover, when the water level in the longitudinal drainage pipe is high, the water in the longitudinal drainage pipe flows into the drainage ditch through the transverse drainage pipe, which can discharge the water leaking from the lining out of the tunnel in time, thereby ensuring the normal operation of the tunnel waterproof and drainage system.

[0003] The tunnel invert arch needs to be poured with concrete during construction. During the pouring of concrete, the transverse drainage pipe is easily affected by the concrete and its position shifts, which affects the normal drainage function of the tunnel and seriously affects the construction quality. Utility Model Content

[0004] The utility model aims to provide a fixed installation structure based on the inverted arch side wall, which can prevent the position of the pre-buried horizontal drainage pipe from shifting during pouring, ensure the accuracy of the position of the drainage hole, avoid slope reduction, affect the normal drainage function of the tunnel, and ensure construction quality.

[0005] To this end, the technical solution adopted by the present invention is: a fixed installation structure based on the inverted arch side wall, including fixed steel bars arranged transversely on the side wall steel bars, three fixed rings for fixing the transverse drainage pipe are arranged transversely and equidistantly on the fixed steel bars, the axes of the fixed rings are on the same straight line, the fixed rings are bent into a circle by metal material, the two ends of the fixed rings are welded together, and the outer side of the top of the fixed ring is welded to the fixed steel bars, the inner hole size of the fixed ring matches the outer diameter of the transverse drainage pipe just for the insertion of the transverse drainage pipe, the two ends of the fixed steel bars are respectively tied to the side wall steel bars by fixing strips, and the upper ends of the fixing strips are respectively tied to the longitudinal steel bars and the vertical steel bars of the side wall steel bars, and the lower end of the fixing strip bypasses the pipe body of the transverse drainage pipe and is wrapped around at least twice.

[0006] The present utility model also provides a fixed installation structure for fixing the steel plate waterstop, including left and right positioning clamps for fixing the steel plate waterstop and an adjustment structure for adjusting the position of the positioning clamps, the adjustment structure including a vertical adjustment component and a horizontal adjustment component, the positioning clamp including a first clamping plate and a second clamping plate arranged opposite to each other, a horizontal plate for connecting the first clamping plate and the second clamping plate is arranged above the first clamping plate and the second clamping plate, the first clamping plate and the second clamping plate are both provided with a tightening member for tightening the steel plate waterstop, and a connecting plate for connecting the adjusting structure is horizontally arranged on the opposite side of the first clamping plate.

[0007] It is further preferred that the vertical adjustment assembly includes a vertical plate and a vertical adjustment piece, the vertical plate is arranged parallel to one side of the connecting plate, a vertical adjustment slot is opened on the vertical plate, and there are at least two vertical adjustment pieces, which are arranged on the connecting plate at intervals above and below and connected to the vertical plate through the vertical adjustment slot.

[0008] It is further preferred that the lateral adjustment assembly includes a lateral plate and a lateral adjustment piece, the lateral plate is arranged parallel to one side of the vertical plate, a lateral adjustment slot is opened on the lateral plate, and there are at least two lateral adjustment pieces, which are arranged on the vertical plate at intervals on the left and right and connected to the lateral plate through the lateral adjustment slot.

[0009] It is further preferred that the vertical adjustment member and the horizontal adjustment member are both composed of nuts and bolts, the nuts are respectively arranged on the vertical plate or the horizontal plate, the heads of the bolts are respectively arranged on the vertical plate or the horizontal plate, the threaded ends pass through the vertical adjustment groove or the horizontal adjustment groove and are connected to the nuts, and the horizontal plate is fixed on the top of the inverted arch formwork.

[0010] Further preferably, the tightening member includes a fixing nut and a tightening bolt, the fixing nut is welded on opposite sides of the first splint and the second splint, the two fixing nuts are on the same horizontal line, and the tightening bolt is threadedly connected to the fixing nut.

[0011] More preferably, the connecting plate is welded to the first clamping plate.

[0012] The beneficial effects of the present invention are as follows: by welding the fixed steel bars to the fixed rings, the basic connection strength of the fixing tooling is ensured, and the fixed steel bars are tied to the side wall steel bars. The transverse drainage pipes are sequentially passed through the fixed rings and connected to the drainage ditch. The transverse drainage pipes are fixed by the fixing tooling, which can avoid the accuracy of the pre-buried position of the transverse drainage pipes during concrete pouring, ensure the correct position of the drainage holes, avoid slope reduction, and ensure the normal drainage function of the tunnel and the construction quality of the tunnel. It is simple to make and easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1It is a schematic diagram of the fixed installation structure of the horizontal drainage in the utility model.

[0014] Figure 2 It is a structural schematic diagram of the fixed state of the horizontal drainage pipe in the utility model.

[0015] Figure 3 It is a schematic diagram of the fixed installation structure of the steel plate waterstop in the utility model. DETAILED DESCRIPTION

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] like Figure 1-3 As shown, a fixed installation structure based on an inverted arch side wall includes a fixed steel bar 1 arranged transversely on the side wall reinforcement 3. Three fixed rings 2 for fixing a transverse drainage pipe 5 are arranged on the fixed steel bar 1 at equal intervals transversely. The axes of the fixed rings 2 are aligned. The fixed rings 2 are formed into a circular shape by bending metal material. The two ends of the fixed ring 2 are welded together, and the top outer side of the fixed ring 2 is welded to the fixed steel bar 1. The inner hole size of the fixed ring 2 matches the outer diameter of the transverse drainage pipe 5 and is just enough for the transverse drainage pipe 5 to be inserted. The two ends of the fixed steel bar 1 are respectively tied to the side wall reinforcement 3 by fixing bars 4. The upper ends of the fixing bars 4 are respectively tied to the longitudinal bars 3a and vertical bars 3b of the side wall reinforcement 3. The fixed steel bar 1 can be fixed quickly and easily to prevent the position of the fixed steel bar 1 from shifting. The lower end of the fixing bar 4 passes around the pipe body of the transverse drainage pipe 5 and is wrapped around at least twice. The transverse drainage pipe 5 is made of PVC pipe.

[0018] The fixed steel bar 1 is made of φ14 threaded steel bar. Threaded steel bar has high strength and excellent mechanical properties, good ductility and plasticity, fatigue resistance, connection performance and construction convenience, durability and corrosion resistance.

[0019] There is a distance of 25 to 35 cm between two adjacent fixing rings 2. The distance of 25 to 35 cm can ensure the basic strength of the horizontal drain pipe 5 when it is fixed, and prevent the horizontal drain pipe 5 from shifting during concrete pouring.

[0020] The fixing bar 4 is made of tying wire, which is convenient and quick to use, reliable in quality, widely applicable, environmentally friendly and safe, and easy to inspect and maintain.

[0021] The fixing ring 2 is welded to the fixing steel bar 1 at the welding position where the two ends are close together. The contact area between the ends and the fixing steel bar 1 at the position where the ends are close together is larger, and welding is easier and more secure.

[0022] The three fixing rings 2 on the fixing steel bar 1 are arranged at four equal parts.

[0023] By welding the fixed steel bar 1 to the fixed ring 2, the basic connection strength of the fixing tool is guaranteed, and the fixed steel bar 1 is tied to the side wall steel bar 3. The transverse drainage pipe 5 passes through the fixed ring 2 in turn and is connected to the drainage ditch. The transverse drainage pipe 5 is fixed by the fixing tool. This can avoid the accuracy of the pre-buried position of the transverse drainage pipe 5 from being offset when pouring concrete, ensure the correct position of the drain hole, avoid slope reduction, and ensure the normal drainage function of the tunnel and the construction quality of the tunnel. It is simple to make and easy to operate.

[0024] The present utility model also provides an installation structure for fixing the steel plate waterstop, including left and right positioning clamps for fixing the steel plate waterstop and an adjustment structure for adjusting the position of the positioning clamps, the adjustment structure including a vertical adjustment component and a horizontal adjustment component, the positioning clamp including a first clamping plate 6 and a second clamping plate 7 arranged opposite to each other, a horizontal plate 8 for connecting the first clamping plate 6 and the second clamping plate 7 is arranged above the first clamping plate 6 and the second clamping plate 7, a tightening member 9 for tightening the steel plate waterstop is provided on the first clamping plate 6 and the second clamping plate 7, and a connecting plate 10 for connecting the adjusting structure is horizontally arranged on the opposite side of the first clamping plate 6.

[0025] The vertical adjustment assembly includes a vertical plate 11 and a vertical adjustment piece 1101. The vertical plate 11 is arranged parallel to one side of the connecting plate 10. A vertical adjustment slot 1102 is opened on the vertical plate 11. There are at least two vertical adjustment pieces 1101, which are arranged on the connecting plate 10 at intervals above and below and connected to the vertical plate 11 through the vertical adjustment slot 1102.

[0026] The transverse adjustment assembly includes a transverse plate 12 and a transverse adjustment member 1201. The transverse plate 12 is arranged parallel to one side of the vertical plate 11. A transverse adjustment slot 1202 is provided on the transverse plate 12. There are at least two transverse adjustment members 1201, which are arranged on the vertical plate 11 at intervals and connected to the transverse plate 12 through the transverse adjustment slot 1202. The transverse adjustment member 1201 and the vertical adjustment member 1101 are provided to facilitate adjustment of the position of the vertical plate 11 on the transverse plate 12 and the position of the connecting plate 10 on the vertical plate 11, thereby ensuring that the steel plate waterstop is centered.

[0027] The vertical adjustment member 1101 and the horizontal adjustment member 1201 are both composed of nuts and bolts. The nuts are respectively set on the vertical plate 11 or the horizontal plate 12. The heads of the bolts are respectively set on the vertical plate 11 or the horizontal plate 12. The threaded ends pass through the vertical adjustment slot 1102 or the horizontal adjustment slot 1202 to connect with the nuts. The horizontal plate 12 is fixed to the top of the inverted arch formwork. By adjusting the position of the nuts and bolts on the horizontal adjustment slot 1202 and the vertical adjustment slot, the position of the vertical adjustment member on the horizontal adjustment member 1201 and the position of the horizontal plate 12 on the vertical adjustment member are adjusted, thereby ensuring the position of the steel plate waterstop is centered, ensuring the waterproof effect of the tunnel construction joint, and ensuring the construction quality of the tunnel.

[0028] The retaining member 9 includes a fixing nut and a retaining bolt. The fixing nut is welded to the opposite sides of the first and second clamping plates 6 and 7. The two fixing nuts are on the same horizontal line, and the retaining bolt is threadedly connected to the fixing nut. The fixing nut and retaining bolt are used to fix the steel plate waterstop, and the position of the retaining member 9 can be appropriately adjusted, thereby being applicable to steel plate waterstops of various sizes and specifications, and having a wider range of applications.

[0029] The connecting plate 10 is welded to the first clamping plate 6. Welding can ensure the connection strength between the connecting plate 10 and the first clamping plate 6. The position and height of the positioning clamp are adjusted by the vertical adjustment component and the horizontal adjustment component, and the steel plate waterstop is fixed by the fastening member 9 on the fixing clamp to ensure that the steel plate waterstop is in the center position during concrete pouring, to prevent the steel plate waterstop from being squeezed out of position by the concrete, or bending or deformation, and to prevent the steel plate waterstop from being completely buried in the concrete or completely falling off, thereby causing water leakage in the construction joint and affecting the construction quality of the tunnel.

[0030] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A fixed installation structure based on an inverted arch side wall, characterized by: The invention comprises a fixing steel bar (1) arranged transversely on a side wall steel bar (3), three fixing rings (2) for fixing a transverse drainage pipe (5) are arranged transversely and equidistantly on the fixing steel bar (1), the axes of the fixing rings (2) are on the same straight line, the fixing rings (2) are formed into a circle by bending a metal material, the two ends of the fixing ring (2) are welded together, and the outer side of the top of the fixing ring (2) is welded to the fixing steel bar (1), the inner hole size of the fixing ring (2) matches the outer diameter of the transverse drainage pipe (5) and is just enough for the transverse drainage pipe (5) to be inserted, the two ends of the fixing steel bar (1) are respectively tied to the side wall steel bar (3) through a fixing bar (4), and the upper end of the fixing bar (4) is respectively tied to the longitudinal steel bar (3a) and the vertical steel bar (3b) of the side wall steel bar (3), and the lower end of the fixing bar (4) is wrapped around the pipe body of the transverse drainage pipe (5) for at least two turns.

2. The fixed installation structure based on the inverted arch side wall according to claim 1, characterized in that: It also includes positioning clamps arranged on the left and right for fixing the steel plate water stop and an adjustment structure for adjusting the position of the positioning clamps, the adjustment structure includes a vertical adjustment component and a horizontal adjustment component, the positioning clamp includes a first clamping plate (6) and a second clamping plate (7) arranged opposite to each other, a horizontal plate (8) for connecting the first clamping plate (6) and the second clamping plate (7) is arranged above the first clamping plate (6) and the second clamping plate (7), a tightening member (9) for tightening the steel plate water stop is arranged on the first clamping plate (6) and the second clamping plate (7), and a connecting plate (10) for connecting the adjustment structure is arranged horizontally on the opposite side of the first clamping plate (6).

3. The fixed installation structure based on the inverted arch side wall according to claim 2, characterized in that: The vertical adjustment assembly comprises a vertical plate (11) and a vertical adjustment member (1101), wherein the vertical plate (11) is arranged in parallel on one side of the connecting plate (10), a vertical adjustment slot (1102) is provided on the vertical plate (11), and there are at least two vertical adjustment members (1101), which are arranged on the connecting plate (10) at intervals in an upper and lower direction and connected to the vertical plate (11) through the vertical adjustment slot (1102).

4. The fixed installation structure based on the inverted arch side wall according to claim 3, characterized in that: The transverse adjustment assembly comprises a transverse plate (12) and a transverse adjustment member (1201), wherein the transverse plate (12) is arranged parallel to one side of the vertical plate (11), a transverse adjustment slot (1202) is provided on the transverse plate (12), and there are at least two transverse adjustment members (1201), which are arranged on the vertical plate (11) at intervals on the left and right and connected to the transverse plate (12) through the transverse adjustment slot (1202).

5. The fixed installation structure based on the inverted arch side wall according to claim 4, characterized in that: The vertical adjustment member (1101) and the horizontal adjustment member (1201) are both composed of nuts and bolts. The nuts are respectively arranged on the vertical plate (11) or the horizontal plate (12). The heads of the bolts are respectively arranged on the vertical plate (11) or the horizontal plate (12). The threaded ends pass through the vertical adjustment slot (1102) or the horizontal adjustment slot (1202) and are connected to the nuts. The horizontal plate (12) is fixed to the top of the inverted arch formwork.

6. The fixed installation structure based on the inverted arch side wall according to claim 2, characterized in that: The fastening member (9) comprises a fixing nut and a fastening bolt, wherein the fixing nut is welded to opposite sides of the first clamping plate (6) and the second clamping plate (7), the two fixing nuts are on the same horizontal line, and the fastening bolt is threadedly connected to the fixing nut.

7. The fixed installation structure based on the inverted arch side wall according to claim 2, characterized in that: The connecting plate (10) is welded to the first clamping plate (6).