CN214944299U - Shaping structure of tunnel secondary lining buried water stop belt - Google Patents

Abstract

The utility model relates to a tunnel secondary lining buried waterstop shaping structure, which comprises an inner template and an outer template; the inner template is used for being fixed with the trolley, the outer template is detachably connected to one side of the inner template, which is far away from the trolley, a clamping cavity for clamping the buried water stop is formed between the inner template and the outer template, and the clamping cavity extends along the direction far away from the lining reinforcing steel bars; one side of the outer template, which is far away from the lining reinforcing steel bar, is provided with a compression structure, the compression structure is used for applying a pressing force towards the lining reinforcing steel bar to the outer template, the compression structure comprises a compression plate and at least two fixing columns, the at least two fixing columns are distributed on the outer template at intervals, one ends of the fixing columns are fixedly connected with the outer template, and the other ends of the fixing columns extend towards the direction far away from the outer template; the pressing plate is provided with a through hole for the fixing column to pass through, and the other end of the fixing column is provided with a locking piece for locking the pressing plate and the fixing column, so that the pressing structure applies pressing force to the external template, and the clamping effect of the buried water stop belt is better.

Description

Shaping structure of tunnel secondary lining buried water stop belt

Technical Field

The utility model relates to a tunnel construction technical field especially relates to a bury waterstop fixed knot structure in two linings in tunnel.

Background

The buried water stop is needed during the construction of the secondary lining of the tunnel. The buried water stop is generally positioned by a shaping structure of the buried water stop, the traditional shaping structure comprises an inner template and an outer template, the inner template is connected with a trolley, a clamping cavity is formed between the inner template and the outer template and is used for clamping the buried water stop,

however, the clamping effect of the existing shaping structure on the buried water stop belt is not good.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem or at least partially solve the technical problem, the present disclosure provides a shaping structure for a tunnel secondary lining buried waterstop.

The utility model provides a tunnel secondary lining buried waterstop shaping structure, which comprises an inner template and an outer template;

the inner formwork is used for being fixed with a trolley, the outer formwork is detachably connected to one side, far away from the trolley, of the inner formwork, a clamping cavity for clamping a buried water stop belt is formed between the inner formwork and the outer formwork, and the clamping cavity extends in the direction far away from the lining reinforcing steel bars; one side of the inner template, which is close to the lining reinforcing steel bars, is flush with one side of the outer template, which is close to the lining reinforcing steel bars;

one side, far away from the lining reinforcing steel bars, of the outer template is provided with a compression structure, the compression structure is used for applying pressing force towards the lining reinforcing steel bars to the outer template, the compression structure comprises a compression plate and at least two fixing columns, the at least two fixing columns are distributed on the outer template at intervals, one ends of the fixing columns are fixedly connected with the outer template, and the other ends of the fixing columns extend towards the direction far away from the outer template; the pressing plate is provided with a through hole through which the fixing column can pass, and the other end of the fixing column is provided with a locking piece used for locking the pressing plate and the fixing column, so that the pressing structure applies the pressing force to the outer template.

Further, the fixed column is the screw thread post, the retaining member cover is established on the screw thread post, just the inner wall of retaining member have be used for with screw thread post matched with internal thread.

Furthermore, an adjusting plate is arranged on one side of the outer template, which is far away from the lining reinforcing steel bars; the adjusting plate is positioned in a space formed between the pressing plate and two adjacent fixing columns; a gap is formed between one side of the outer template far away from the inner template and the primary support surface, and the size of the adjusting plate is larger than that of the gap in the direction from one side of the outer template far away from the inner template to one side of the primary support surface close to the outer template, so as to compensate the gap; when the retaining member locks the pressing plate and the fixing column, the adjusting plate is pressed on the outer template by the pressing plate.

Further, the height of the fixing column is not less than 6 cm.

Further, a rod-shaped reinforcing member is arranged on one side of the compaction structure, which is far away from the outer template; the inner template is provided with a fixing structure, the fixing structure comprises a limiting ring, and the rod-shaped reinforcing part is arranged in the limiting ring in a penetrating mode and is relatively fixed with the limiting ring, so that the rod-shaped reinforcing part is arranged on the compression plate of the compression structure in a pressing mode.

Furthermore, the fixing structure further comprises a fixing pad, and the fixing pad is located between the inner template and the rod-shaped reinforcing member, so that the outer wall of the rod-shaped reinforcing member is abutted against the inner wall of the limiting ring.

Further, one side of the outer formwork, which is far away from the lining reinforcing steel bars, is also provided with a balance pad, and the balance pad is positioned between the compression plate and the rod-shaped reinforcing member.

Further, the inner template comprises a female template and a sub template which are hinged together, the sub template is positioned between the female template and the outer template, and the sub template can move in the direction of approaching to the female template and moving away from the female template.

Further, one side of the inner formwork, which is close to the outer formwork, is bent along one side, which is far away from the lining reinforcing steel bars, to form a first connecting plate, one side of the outer formwork, which is close to the inner formwork, is bent along one side, which is far away from the lining reinforcing steel bars, to form a second connecting plate, the first connecting plate and the second connecting plate are connected together through a fastener, and the clamping cavity is formed between the first connecting plate and the second connecting plate.

Furthermore, an inner formwork reinforcing rib is arranged between the first connecting plate and the inner formwork, and an outer formwork reinforcing rib is arranged between the second connecting plate and the outer formwork.

Compared with the prior art, the technical scheme provided by the embodiment of the disclosure has the following advantages:

in the tunnel secondary lining buried water stop forming structure provided by the disclosure, by arranging the inner template and the outer template, a clamping cavity for clamping the buried water stop is arranged between the inner template and the outer template, wherein the clamping cavity extends in a direction away from the lining reinforcing steel bar. When the outer template is specifically implemented, the compaction structure comprises a compaction plate and at least two fixed columns, the at least two fixed columns are arranged on the outer template at intervals, namely, the at least two fixed columns are arranged on one side of the outer template away from the lining reinforcing steel bar at intervals, one end of each fixed column is fixedly connected with the outer template, the other end of each fixed column extends towards the direction away from the outer template, the compaction plate is provided with at least two through holes for the fixed columns to penetrate through, the at least two fixed columns are arranged in the through holes of the compaction plate in a penetrating way and are locked on the compaction plate through locking pieces, at the moment, one side of the compaction plate towards the outer template is abutted against the outer template, so that the compaction structure exerts compaction force on the outer template, and the outer template is stably supported, therefore, the clamping cavity between the inner template and the outer template has good clamping effect on the buried water stop, and the buried water stop is accurately installed and positioned.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.

In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present disclosure, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.

Fig. 1 is a schematic perspective view of a secondary tunnel liner buried waterstop shaping structure according to an embodiment of the present disclosure;

fig. 2 is a front view of a tunnel secondary lining buried waterstop shaping structure according to an embodiment of the disclosure, wherein a regulating plate, a rod-shaped reinforcing member and a fixing structure are removed;

fig. 3 is a top view of a shaping structure of a buried waterstop in a tunnel secondary lining according to an embodiment of the present disclosure.

Wherein, 10-inner template; 101-mother template; 102-a sub-template; 103-a first connection plate; 104-inner template reinforcing ribs; 105-assembly holes; 106-a first avoidance hole; 20-outer template; 201-a second connecting plate; 202-outer formwork reinforcing ribs; 203-a second avoidance hole; 30-a clamping cavity; 40-a compression structure; 401-a compacting plate; 402-fixed columns; 403-locking members; 50-adjusting plate; 60-a rod-shaped reinforcement; 70-a fixed structure; 701-a limiting ring; 702-a stationary pad; 80-primary branch surface; 801-gap; 802-buried water stop; and 90-trolley.

Detailed Description

In order that the above objects, features and advantages of the present disclosure may be more clearly understood, aspects of the present disclosure will be further described below. It should be noted that the embodiments and features of the embodiments of the present disclosure may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure, but the present disclosure may be practiced in other ways than those described herein; it is to be understood that the embodiments disclosed in the specification are only a few embodiments of the present disclosure, and not all embodiments.

Referring to fig. 1 to 3, the present embodiment provides a shaping structure for a tunnel secondary lining buried water stop (hereinafter referred to as a shaping structure), including an inner formwork 10 and an outer formwork 20; the inner formwork 10 is used for being fixed with the trolley 90, the outer formwork 20 is detachably connected to one side, far away from the trolley 90, of the inner formwork 10, a clamping cavity 30 used for clamping the buried water stop 802 is formed between the inner formwork 10 and the outer formwork 20, and the clamping cavity 30 extends in the direction far away from the lining reinforcing steel bars; one side of the inner formwork 10 close to the lining reinforcing steel bars is flush with one side of the outer formwork 20 close to the lining reinforcing steel bars.

In this embodiment, the inner form 10 and the outer form 20 are both steel forms, or alloy forms made of steel or any other suitable material, which have high strength and good bearing performance, and can be recycled, thereby saving the cost. Of course, the inner and outer formworks 10 and 20 may be wooden formworks. It will be readily understood by those skilled in the art that the material of the inner form 10 and the outer form 20 may be the same or different, and is not limited herein.

As will be readily understood by those skilled in the art, in the secondary lining of the tunnel, the present embodiment is integrally disposed on the trolley 90 for use, and specifically, the inner formworks 10 are attached and fixed to the two lining-end annular fixed formworks of the trolley 90. Mounting holes for mounting the inner template 10 are formed in the annular fixed template at the ends of the two lining ends of the trolley 90, and assembling holes 105 matched with the mounting holes are formed in the inner template 10; during installation, the inner formworks 10 are attached to the two lining-end annular fixed formworks of the trolley 90, the assembly holes 105 are aligned with the installation holes, and then the inner formworks 10 are fixed to the two lining-end annular fixed formworks of the trolley 90 through fasteners, such as bolts, penetrating through the assembly holes 105 and the installation holes, so that the fixing structure provided by the embodiment is fixed to the trolley 90 for use.

It should be noted that, in the fixed structure provided in this embodiment, the side close to the trolley 90 is the inner side, and the side far from the trolley 90 is the outer side.

In this embodiment, the side of the outer form 20 away from the lining steel bars is provided with the pressing structure 40, the pressing structure 40 is used for applying a pressing force towards the lining steel bars to the outer form 20, and the pressing structure 40 may have various implementations, and can apply a pressing force towards the lining steel bars to the outer form 20, so that the clamping cavity 30 can clamp the buried water stop 802 firmly, without any limitation.

Exemplarily, referring to fig. 1, the pressing structure 40 includes a pressing plate 401 and at least two fixing posts 402, the at least two fixing posts 402 are arranged on the outer formwork 20 at intervals, one end of each fixing post 402 is fixedly connected with the outer formwork 20, and the other end of each fixing post 402 extends in a direction away from the outer formwork 20; the pressing plate 401 has a through hole for the fixing post 402 to pass through, and a locking member 403 for locking the pressing plate 401 and the fixing post 402 is disposed at the other end of the fixing post 402, so that the pressing structure 40 applies a pressing force to the outer form 20.

Wherein, the one end of fixed column 402 can the beading on exterior sheathing 20, perhaps sets up the assembly groove that is used for installing fixed column 402 on exterior sheathing 20, welds the one end of fixed column 402 in the assembly groove, and the assembly groove has the prepositioning effect to fixing, convenient assembly, and simultaneously, the assembly groove also has limiting displacement to fixed column 402, avoids external force to damage fixed column 402. Of course, the fixing post 402 may be integrally formed with the outer form 20, so that the integrity is good, the bearing performance is excellent, and the strength is high.

The fixing post 402 may be a metal post or any other suitable fixing post 402, and has high strength and excellent bearing performance, and is not limited herein,

in the present embodiment, the pressing plate 401 is a wooden plate, a metal plate, or the like having a certain thickness, such as an angle iron. During assembly, at least two fixing columns 402 are arranged in through holes of the pressing plate 401 in a penetrating mode, the pressing plate 401 is attached to the outer formwork 20, the pressing plate 401 is locked on the fixing columns 402 through the locking pieces 403, the pressing plate 401 can apply pressing force towards lining reinforcing steel bars to the outer formwork 20 under the action of the locking pieces 403, the outer formwork 20 is made to be stably supported, and then the clamping cavity 30 between the outer formwork 20 and the inner formwork 10 can stably clamp the embedded water stop 802, namely, the embodiment has a good clamping effect on the embedded water stop 802, the embedded water stop 802 is accurately installed and positioned, the phenomena that the embedded water stop 802 is distorted and damaged due to looseness or displacement during concrete pouring are avoided, and the pouring quality and the waterproof performance of the embedded water stop 802 can be improved.

In a specific implementation, referring to fig. 1 and 2, at least two fixing posts 402 may be arranged on the outer formworks 20 at intervals along the length direction of the outer formworks 20, that is, along the extending direction of the clamping cavity 30. Of course, the at least two fixing posts 402 may be disposed on the outer form 20 at intervals along the width direction of the outer form 20, or the connecting line direction between the at least two fixing posts 402 may be disposed on the outer form 20 at an angle inclined to the length direction or the width direction of the outer form 20, without being limited thereto.

Through the technical scheme, in the tunnel secondary lining buried water stop 802 sizing structure provided by the embodiment, by arranging the inner formwork 10 and the outer formwork 20, a clamping cavity 30 for clamping the buried water stop 802 is formed between the inner formwork 10 and the outer formwork 20, wherein the clamping cavity 30 extends in the direction far away from the lining reinforcing steel bars. When the compacting structure 40 is arranged on the side of the external formwork 20 far away from the lining steel bars, and the compacting structure 40 is used for applying a compacting force towards the lining steel bars to the external formwork 20, in particular, the compacting structure 40 includes a compacting plate 401 and at least two fixing posts 402, the at least two fixing posts 402 are arranged on the external formwork 20 at intervals, that is, the at least two fixing posts 402 are arranged on the side of the external formwork 20 far away from the lining steel bars at intervals, one end of the fixing post 402 is fixedly connected with the external formwork 20, the other end of the fixing post 402 extends towards the direction far away from the external formwork 20, the compacting plate 401 has at least two through holes through which the fixing posts 402 can pass, the at least two fixing posts 402 are inserted into the through holes of the compacting plate 401 and the compacting plate 401 is locked on the fixing posts 402 by the locking member, at this time, the side of the compacting plate 401 towards the external formwork 20 is abutted against the external formwork 20, so that the compacting structure 40 applies a compacting force to the external formwork 20, the outer template 20 is stably supported, so the clamping cavity 30 between the inner template 10 and the outer template 20 has good clamping effect on the buried water stop 802, and the buried water stop 802 is accurately installed and positioned.

In this embodiment, the fixing post 402 includes an assembling section and a locking section, wherein the assembling section is located on one side of the fixing post 402 close to the external form 20, the locking section is located on one side of the fixing post 402 far from the external form 20, the assembling section is used for being in fit connection with the pressing plate 401, the locking section is used for being in fit connection with the locking member 403, and when the pressing plate 401 is mounted on the fixing post 402, the locking member 403 is in fit connection with the assembling section to lock the pressing plate 401 on the fixing post 402.

As an alternative, referring to fig. 1 and 3, for convenience of connection, the fixing column 402 is a threaded column, the locking member 403 is sleeved on the threaded column, and the inner wall of the locking member 403 has an internal thread for matching with the threaded column, so that the structure is simple, the implementation is easy, and the installation and the disassembly are convenient. For example, retaining member 403 is a nut that mates with a threaded post. At this time, the side of the threaded column far from the outer form 20 has a threaded section, and the threaded section on the threaded column is a locking section.

As another alternative, the fixing column 402 is a fixing column 402 with a smooth outer wall, wherein a locking hole is formed in one side of the fixing column 402, which is away from the outer die plate 20, and a locking pin is detachably connected to the locking hole, and the locking pin is in fit connection with the locking hole to lock the pressing plate 401 on the fixing column 402.

It is easily understood by those skilled in the art that, in the secondary lining of the tunnel, when the embedded water stop 802 is clamped by the shaped structure provided in this embodiment, the design requirement is that one side of the outer form 20 away from the inner form 10 should be tightly abutted against the primary support surface 80, and at this time, the concrete does not overflow from between the outer form 20 and the primary support surface when the concrete is poured, so as to ensure the lining quality of the embedded water stop 802. However, because the thicknesses of the two linings of the surrounding rocks of different levels of the tunnel are different, a gap 801 is often formed between the side of the outer formwork 20 away from the inner formwork 10 and the primary support surface 80, and therefore, in the embodiment, referring to fig. 1 and 3, the side of the outer formwork 20 away from the lining reinforcing steel bars is further provided with an adjusting plate 50, and the adjusting plate 50 can extend to the outer wall of the side of the outer formwork 20 away from the lining reinforcing steel bars, so that the side of the adjusting plate 50 away from the outer formwork 20 is abutted to the primary support surface 80; the adjusting plate 50 is positioned in a space formed between the pressing plate 401 and two adjacent fixing columns 402, and when a gap 801 is formed between one side of the outer template 20 far away from the inner template 10 and the primary support surface 80, the size of the adjusting plate 50 is larger than that of the gap 801 in a direction from the side of the outer template 20 far away from the inner template 10 to the side of the primary support surface 80 close to the outer template 20, so as to compensate for the gap 801; when the locking member 403 locks the pressing plate 401 and the fixing post 402, the adjusting plate 50 is pressed against the outer mold plate 20 by the pressing plate 401.

During the specific use, on the one hand, regulating plate 50 has covered clearance 801 between exterior sheathing 20 and the primary surface 80, avoids concreting to spill over, buries the lining cutting quality of waterstop 802 department in guaranteeing, promptly, has effectively promoted the retarded soil quality of annular construction joint, provides the guarantee for railway operation safety. On the other hand, under the action of the pressing plate 401, the adjusting plate 50 can also apply pressing force towards the lining reinforcing steel bars to the formwork, so that the force application area is increased, and the effect of widening and reinforcing is achieved.

The use of the adjusting plate 50 makes up for assembly errors, and meanwhile, under the condition that the thicknesses of the two linings of the surrounding rocks at different levels of the tunnel are different, construction is convenient, construction efficiency is improved, and manpower and material resources are saved.

In addition, the height of the fixing post 402 is not less than 6cm for the convenience of assembly.

Referring to fig. 1 and 3, a side of the compression structure 40 remote from the outer form 20 is provided with a bar reinforcement 60; the inner template 10 is provided with a fixing structure 70, the fixing structure 70 includes a limiting ring 701, the rod-shaped reinforcing member 60 is inserted into the limiting ring 701 and fixed relative to the limiting ring 701, so that the rod-shaped reinforcing member 60 is pressed on the pressing plate 401 of the pressing structure 40.

In this embodiment, the rod-shaped reinforcing member 60 may be a reinforcing steel pipe, a reinforcing steel plate, a reinforcing square bar, or the like, and may be provided in the collar 701 with high strength so that the rod-shaped reinforcing member 60 can press the pressure plate 401 against the lining reinforcing steel bars by abutting part of the outer edge of the rod-shaped reinforcing member 60 against the inner wall of the collar 701.

Wherein, the spacing ring 701 can weld on interior template 10, or with interior template 10 integrated into one piece, the wholeness is good, and intensity is high. Of course, the limiting ring 701 may be connected with the inner form 10 by structural adhesive bonding or the like. The method is arbitrarily selected according to the actual working condition, and is not limited too much.

In particular implementations, the rod stiffeners 60 extend from the inner form 10 at least above the hold-down plate 401 of the outer form 20 in a direction away from the inner form 10. Preferably, rod-shaped reinforcement 60 butt simultaneously in the one side of keeping away from the lining reinforcing bar of holding chamber, also has the reinforcement effect to the junction of exterior sheathing 20 and interior sheathing 10, has improved the overall stability of the typical structure that this embodiment provided, and then makes the centre gripping effect of centre gripping chamber 30 centering buried water stop 802 better.

Further, referring to fig. 1 and 3, in order to facilitate assembly, the fixing structure 70 further includes a fixing pad 702, and the fixing pad 702 is located between the inner die plate 10 and the rod-shaped reinforcing member 60, so that the outer wall of the rod-shaped reinforcing member 60 abuts against the inner wall of the retainer ring 701. During the assembly, when the outer wall of bar-shaped reinforcement 60 supports tightly with the inner wall of spacing ring 701, if during gapped 801 between bar-shaped reinforcement 60 and the inner formword 10, can adopt fixed bolster 702 to come the balanced regulation, when making bar-shaped reinforcement 60 support tightly with spacing ring 701, one side of keeping away from the lining reinforcing bar of bar-shaped reinforcement 60 and inner formword 10 is also relatively fixed, thereby avoid bar-shaped reinforcement 60 for the drunkenness of spacing ring 701, and then make bar-shaped reinforcement 60 can stabilize and support tightly with compact structure 40, and the suitability is high.

In this embodiment, one side of the external form 20 far away from the lining reinforcing bar is further provided with a balance pad, and when a space is provided between the pressing plate 401 and the rod-shaped reinforcing member 60, the balance pad is arranged between the pressing plate 401 and the rod-shaped reinforcing member 60, so that the abutting force of the rod-shaped reinforcing member 60 is transmitted to the pressing plate 401 through the balance pad, the balance pad is convenient to assemble, the production assembly error can be made up, and the applicability is strong.

As an alternative embodiment, when the outer form 20 is further provided with an adjusting plate 50 at a side away from the lining reinforcing bars, the adjusting plate 50 is located in a space formed between the pressing plate 401 and two adjacent fixing posts 402, and the locking member 403 locks the pressing plate 401 and the fixing posts 402, the adjusting plate 50 is pressed against the outer form 20 by the pressing plate 401. In the direction from the side of the outer form 20 far away from the inner form 10 to the side of the primary support surface 80 close to the outer form 20, if the extension dimension of the adjustment plate 50 is large, at this time, the rod-shaped reinforcing member 60 can extend from the inner form 10 to the upper side of the adjustment plate 50, and at the same time, a balance pad is arranged between the adjustment plate 50 and the rod-shaped reinforcing member 60, so that the outer wall of the rod-shaped reinforcing member 60 is tightly abutted to the balance pad between the adjustment plate 50 and the rod-shaped reinforcing member 60, that is, the tightening force of the rod-shaped reinforcing member 60 is transmitted to the adjustment plate 50 through the balance pad, at this time, the rod-shaped reinforcing member 60 and the pressing plate 401 simultaneously apply pressing force towards the lining reinforcing steel bar to the adjustment plate 50, so that the outer form 20 is stably supported, and further, the clamping effect of the clamping cavity 30 on the buried water stop strip 802 is better.

Referring to fig. 2 and 3, the inner formwork 10 includes a mother formwork 101 and a daughter formwork 102 hinged together, the daughter formwork 102 is located between the mother formwork 101 and the outer formwork 20, and the daughter formwork 102 can move in a direction toward the mother formwork 101 and away from the mother formwork 101, that is, the inner formwork 10 includes the mother formwork 101 and the daughter formwork 102 connected together in a hinge manner, the mother formwork 101 and the daughter formwork 102 can be opened and closed by themselves, and both the mother formwork 101 and the daughter formwork 102 are provided with assembling holes 105 for connecting with the trolley 90.

When concrete is poured, fasteners such as bolts are inserted into the fitting holes 105 to fixedly couple the mother formwork 101 and the daughter formwork 102 to the bogie 90. When the trolley 90 needs to move to the next station, the fasteners in the assembly holes 105 on the sub-template 102 are loosened, then the sub-template 102 can move towards the direction close to the mother template 101 along the hinged part with the inner template 10, so that the sub-template 102 is temporarily closed with the mother template 101 and placed on the side, far away from the trolley 90, of the mother template 101, and by adopting the design, the trolley 90 can walk in place without disassembling the inner template 10, thereby greatly reducing the labor intensity of workers and improving the second lining construction efficiency.

In this embodiment, a first avoidance hole 106 for avoiding the reinforcing steel bars extending to the expansion joint to be poured outside the concrete area is further formed in the female formwork 101, and a second avoidance hole 203 for avoiding the reinforcing steel bars extending to the expansion joint to be poured outside the concrete area is further formed in the sub-formwork 102.

Further, referring to fig. 1, one side of the inner formworks 10 close to the outer formworks 20 is bent to form a first connecting plate 103 along a side facing away from the lining reinforcing bars, one side of the outer formworks 20 close to the inner formworks 10 is bent to form a second connecting plate 201 along a side facing away from the lining reinforcing bars, the first connecting plate 103 and the second connecting plate 201 are connected together by fasteners such as bolts, and a clamping cavity 30 is formed between the first connecting plate 103 and the second connecting plate 201. The width of the clamping cavity 30 is not less than half of the width of the water stop, that is, the width of the clamping cavity 30 is greater than half of the width of the water stop, and the clamping effect of the clamping cavity 30 on the central buried water stop 802 is better.

Referring to fig. 1, an inner formwork reinforcing rib 104 is arranged between the first connecting plate 103 and the inner formwork 10, the inner formwork reinforcing rib 104 is arranged in a direction towards the inner formwork 10 in an inclined manner, and the inner formwork reinforcing rib 104 abuts against one side of the inner formwork 10 far away from the lining reinforcing steel bars; be provided with exterior sheathing strengthening rib 202 between second connecting plate 201 and exterior sheathing 20, exterior sheathing strengthening rib 202 sets up along the direction slope that the orientation is close to exterior sheathing 20, and one side butt of keeping away from the lining reinforcing bar of exterior sheathing strengthening rib 202 and exterior sheathing 20 to the overall stability and the intensity of the typical construction that this embodiment provided have been improved, thereby make centre gripping chamber 30 to bury the centre gripping effect of waterstop 802 better.

It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The foregoing are merely exemplary embodiments of the present disclosure, which enable those skilled in the art to understand or practice the present disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A tunnel secondary lining buried waterstop shaping structure is characterized by comprising an inner template (10) and an outer template (20);

the inner formwork (10) is used for being fixed with a trolley (90), the outer formwork (20) is detachably connected to one side, far away from the trolley (90), of the inner formwork (10), a clamping cavity (30) used for clamping a buried water stop (802) is formed between the inner formwork (10) and the outer formwork (20), and the clamping cavity (30) extends in the direction far away from the lining reinforcing steel bars; one side of the inner formwork (10) close to the lining reinforcing steel bars is flush with one side of the outer formwork (20) close to the lining reinforcing steel bars;

a compaction structure (40) is arranged on one side, far away from the lining reinforcing steel bars, of the outer formwork (20), the compaction structure (40) is used for applying compaction force towards the lining reinforcing steel bars to the outer formwork (20), the compaction structure (40) comprises a compaction plate (401) and at least two fixing columns (402), the at least two fixing columns (402) are arranged on the outer formwork (20) at intervals, one ends of the fixing columns (402) are fixedly connected with the outer formwork (20), and the other ends of the fixing columns (402) extend towards the direction far away from the outer formwork (20); the pressing plate (401) is provided with a through hole for the fixing column (402) to pass through, and the other end of the fixing column (402) is provided with a locking piece (403) for locking the pressing plate (401) and the fixing column (402) so that the pressing structure (40) applies the pressing force to the outer template (20).

2. The tunnel secondary lining buried water stop forming structure according to claim 1, wherein the fixing column (402) is a threaded column, the locking member (403) is sleeved on the threaded column, and an inner wall of the locking member (403) is provided with an internal thread for matching with the threaded column.

3. The tunnel secondary lining buried water stop shaping structure according to claim 2, wherein a regulating plate (50) is further arranged on one side of the outer formwork (20) far away from the lining reinforcing steel bars; the adjusting plate (50) is positioned in a space formed between the pressing plate (401) and two adjacent fixing columns (402);

a gap (801) is formed between the side of the outer formwork (20) far away from the inner formwork (10) and the primary support surface (80), and the size of the adjusting plate (50) is larger than that of the gap (801) in the direction from the side of the outer formwork (20) far away from the inner formwork (10) to the side of the primary support surface (80) close to the outer formwork (20) so as to compensate the gap (801);

when the locking piece (403) locks the pressing plate (401) and the fixing column (402), the adjusting plate (50) is pressed on the outer template (20) by the pressing plate (401).

4. The tunnel secondary lining buried waterstop shaped structure according to claim 1, wherein the height of the fixing column (402) is not less than 6 cm.

5. The tunnel secondary lining buried waterstop shaping structure according to any one of claims 1 to 4, characterized in that a side of the compaction structure (40) away from the outer formwork (20) is provided with a rod-shaped reinforcement (60);

the inner formwork (10) is provided with a fixing structure (70), the fixing structure (70) comprises a limiting ring (701), the rod-shaped reinforcing member (60) penetrates through the limiting ring (701) and is relatively fixed with the limiting ring (701), so that the rod-shaped reinforcing member (60) is pressed on the pressing plate (401) of the pressing structure (40).

6. The tunnel secondary lining buried water stop shaping structure according to claim 5, wherein the fixing structure (70) further comprises a fixing pad (702), and the fixing pad (702) is located between the inner formwork (10) and the rod-shaped reinforcing member (60) so that the outer wall of the rod-shaped reinforcing member (60) abuts against the inner wall of the limiting ring (701).

7. The tunnel secondary lining buried water stop shaping structure according to claim 5, wherein a side of the outer formwork (20) far away from the lining reinforcing steel bars is further provided with a balance pad, and the balance pad is located between the pressing plate (401) and the rod-shaped reinforcing members (60).

8. The tunnel secondary lining buried waterstop sizing structure according to any one of claims 1 to 4, characterized in that the inner formwork (10) comprises a female formwork (101) and a sub formwork (102) hinged together, the sub formwork (102) is located between the female formwork (101) and the outer formwork (20), and the sub formwork (102) is movable in a direction towards the female formwork (101) and away from the female formwork (101).

9. The tunnel secondary lining buried water stop forming structure according to any one of claims 1 to 4, wherein one side of the inner formwork (10) close to the outer formwork (20) is bent along a side facing away from the lining reinforcing steel bars to form a first connecting plate (103), one side of the outer formwork (20) close to the inner formwork (10) is bent along a side facing away from the lining reinforcing steel bars to form a second connecting plate (201), the first connecting plate (103) and the second connecting plate (201) are connected together through fasteners, and the clamping cavity (30) is formed between the first connecting plate (103) and the second connecting plate (201).

10. The tunnel secondary lining buried water stop shaping structure according to claim 9, wherein an inner formwork reinforcing rib (104) is arranged between the first connecting plate (103) and the inner formwork (10), and an outer formwork reinforcing rib (202) is arranged between the second connecting plate (201) and the outer formwork (20).

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