Rapid integrated forming device for tunnel side type drainage blind drain

Abstract

The utility model discloses a rapid integrated forming device for a tunnel side type drainage blind drain, which comprises a template box used for forming the tunnel side type drainage blind drain, the template box comprises a bottom template, a first side template and a second side template, the first side template and the second side template are positioned on two sides of the bottom template, and the first side template and the second side template are both vertically connected with the bottom template; the upper portion of the formwork box is provided with an opening distributed in the length direction of the formwork box, the opening is provided with at least one bidirectional adjusting jacking assembly distributed in the width direction of the formwork box, and the two ends of the bidirectional adjusting jacking assembly are used for jacking and supporting the upper portion of the first side formwork and the upper portion of the second side formwork respectively. According to the utility model, the integrally prefabricated template is adopted, and the side drainage blind drain and the inverted arch are filled with concrete to be poured synchronously, so that integral one-step forming is realized, automatic demolding can be realized, high-quality, high-efficiency and low-cost construction of the tunnel inverted arch and the side blind drain is realized, the construction safety is enhanced, and the template has the advantages of environmental protection and energy conservation.

Description

TECHNICAL FIELD

[0001] The utility model relates to a tunnel engineering technical field especially relates to a tunnel side type drainage blind ditch rapid integration forming device. BACKGROUND

[0002] The tunnel inverted arch filling inner side type drainage blind ditch is arranged at the both sides of the tunnel inverted arch filling, and the seepage water collected by the tunnel ring blind pipe and the longitudinal blind pipe is drained to the blind ditch outside the tunnel. The construction method of the conventional tunnel side type drainage blind ditch mainly adopts the secondary pouring mode, the inverted arch filling concrete is first constructed to the blind ditch bottom surface elevation, then the wood mold or the steel mold is assembled and fixed through the inclined support, and the inverted arch filling concrete is secondarily poured to the design elevation, or the mold plate is erected in the inverted arch filling section through the horse stool reinforcement and the inclined support, and the inverted arch filling concrete is once poured to be formed. The above process construction process has some obvious problems and defects, and these problems are mainly reflected in the rigidity of the mold plate, the installation stability, the process complexity and the construction efficiency and the like. The specific analysis is as follows:

[0003] (1) Low rigidity of the mold plate: the rigidity of the conventional assembled wood mold is low, and the mold plate is prone to deformation or damage in the use process. Due to the insufficient rigidity of the mold plate, the geometric size is difficult to accurately control, thereby affecting the engineering quality.

[0004] (2) Unstable installation: the mold plate is not stable enough during installation, and is prone to displacement or misalignment during the concrete vibration process. The mold plate has many spliced joints, and is prone to misalignment, distortion, slurry leakage and other quality problems. In addition, the overall linearity control of the formed water ditch after pouring is very poor, and the serpentine shape is very obvious.

[0005] (3) Complex process and high work intensity: the construction methods of the secondary pouring and the mold plate erection both include the mold plate assembly, adjustment, fixation and the like, and the work intensity is high. Each process needs to consume a large amount of time and manpower, thereby leading to low overall construction efficiency.

[0006] (4) Low construction efficiency: due to the low rigidity of the mold plate, the unstable installation, the complex process, the long construction period and the like, the construction efficiency of the conventional assembled wood mold erection process is relatively low. The mold plate has many spliced joints, and needs to be frequently demolded, molded, poured and the like, thereby further reducing the construction efficiency.

[0007] (5) Poor appearance quality: due to the many spliced joints of the mold plate and the difficulty in completely eliminating the joints, the concrete appearance is prone to defects such as air bubbles and pitted surface. These appearance defects not only affect the engineering aesthetic degree, but also may potentially threaten the engineering quality.

[0008] In addition, complex geological conditions and harsh construction environment are often encountered in the tunnel construction process, which puts higher requirements on the construction technology and equipment. UTILITY MODEL CONTENTS

[0009] The utility model discloses a kind of tunnel side type drainage underdrain rapid integrated forming device, by synchronously pouring side type drainage underdrain and inverted arch filling concrete, realize integral one-time forming, construction steps and operation time are greatly reduced, the problems such as low efficiency, poor quality, many security risks in traditional construction method mentioned in the above background art are solved, simultaneously adapt to the demand of complex geological conditions and construction environment, promote the progress and development of tunnel construction technology.

[0010] In order to achieve the above object, the utility model adopts the following technical scheme:

[0011] A kind of tunnel side type drainage underdrain rapid integrated forming device, including the formwork box for forming tunnel side type drainage underdrain, the formwork box includes bottom template and the first side template and the second side template located at the both sides of bottom template, the first side template, the second side template are vertically connected with the bottom template;The upper portion of the formwork box has opening distributed along the length direction of formwork box, the opening is provided with at least one two-way adjusting top pressure component distributed along the width direction of formwork box, two ends of the two-way adjusting top pressure component are used to carry out top pressure support with the upper portion of first side template, the upper portion of second side template respectively.

[0012] Further, the bottom template, the first side template, the second side template are all 2.5mm thick stainless steel plate, the bottom of the first side template, the bottom of the second side template are respectively welded with the both sides of the bottom template Fixed connection.

[0013] Further, the upper portion of the first side template is provided with the first longitudinal support connected with one end of two-way adjusting top pressure component in inner side wall, the upper portion of the second side template is provided with the second longitudinal support connected with the other end of two-way adjusting top pressure component in inner side wall, the first longitudinal support and the second longitudinal support are all distributed along the length direction of formwork box.

[0014] Further, the two-way adjusting top pressure component includes two-way threaded sleeve, first screw rod and second screw rod, the both ends of the two-way threaded sleeve are respectively provided with inner thread of opposite screw direction, one end of the two-way threaded sleeve is threadedly connected with one end of the first screw rod, the other end of the first screw rod is fixedly connected with the first longitudinal support, the other end of the two-way threaded sleeve is threadedly connected with one end of the second screw rod, the other end of the second screw rod is fixedly connected with the second longitudinal support.

[0015] Further, the two-way threaded sleeve is provided with jack for easy twist adjustment.

[0016] Further, the lower inner side wall of the first side formwork is provided with a third longitudinal support, the lower inner side wall of the second side formwork is provided with a fourth longitudinal support, and at least one transverse support is connected between the third longitudinal support and the fourth longitudinal support.

[0017] Further, the third longitudinal support and the fourth longitudinal support are distributed along the length direction of the formwork box.

[0018] Further, the first longitudinal support, the second longitudinal support, the third longitudinal support, the fourth longitudinal support and the transverse support are 18# I-beams.

[0019] Further, the tunnel side drainage underdrain rapid integrated forming device further comprises a plurality of embedded supports for supporting the formwork box, the embedded supports are arranged on the inverted arch lining in the longitudinal direction, and the two ends of the formwork box are respectively connected with inverted arch filling end head formworks, and a pouring space for pouring inverted arch filling concrete is formed between the formwork box, the inverted arch filling end head formworks and the inverted arch lining.

[0020] Further, the embedded support comprises two vertically distributed columns and a horizontally distributed cross bar, and the two ends of the cross bar are respectively fixedly connected with the two columns.

[0021] Compared with the prior art, the tunnel side drainage underdrain rapid integrated forming device has the following beneficial effects:

[0022] The prefabricated formwork box and the bidirectional adjusting and pressing assembly arranged on the formwork box can be used as the transverse support of the opening of the formwork box, the size of the opening can be controlled, the side form of the formwork box can be automatically contracted and enlarged, the formwork box can be conveniently positioned and automatically demolded, manual disassembly and assembly of the formwork are not needed, the construction speed is improved, labor is saved, and the labor intensity is reduced.

[0023] (1) Construction efficiency is improved: the integrated forming process reduces the working procedure, accelerates the progress, and can shorten the on-site construction time through the prefabrication and modular construction mode.

[0024] (2) Quality is improved: the integrated forming process reduces the errors and quality problems caused by multiple splicing, improves the construction precision and engineering quality.

[0025] (3) Cost is saved: due to the reduction of the working cycle and labor cost, the integrated forming process is also more cost-effective in economy.

[0026] (4) Safety is enhanced: the integrated forming process reduces the complexity and danger of on-site operation, and improves the construction safety.

[0027] (5) Adaptability: integrated forming process is suitable for different geological and environmental conditions, with strong adaptability.

[0028] (6) Convenient maintenance: integrated structure is convenient for later maintenance and repair.

[0029] (7) Cycle construction feasibility: integrated forming process supports cycle construction, which is conducive to continuous operation and construction period control.

[0030] It can be seen that these advantages make the tunnel inverted arch filling inside type drainage ditch integrated forming process a high-efficiency, economical and safe construction method in modern tunnel construction. BRIEF DESCRIPTION OF DRAWINGS

[0031] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiment or prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0032] Figure 1 It is a schematic view of the three-dimensional structure of the template box;

[0033] Figure 2 It is a top view of the template box;

[0034] Figure 3 It is Figure 2 It is a sectional view along the direction A-A;

[0035] Figure 4 It is a schematic view of the installation of the template box and the inverted arch filling end template;

[0036] Figure 5 It is a schematic view of the integrated forming of the tunnel side type drainage ditch and the inverted arch.

[0037] Reference signs: 1, template box; 11, bottom template; 12, first side template; 13, second side template; 14, opening; 15, first longitudinal support; 16, second longitudinal support; 17, third longitudinal support; 18, fourth longitudinal support; 2, two-way adjusting top pressing assembly; 21, two-way threaded sleeve; 211, jack; 22, first screw; 23, second screw; 3, transverse support; 4, pre-buried support; 41, stand column; 42, cross bar; 5, inverted arch lining; 6, inverted arch filling end template; 7, inverted arch filling concrete; 8, tunnel side type drainage ditch. DETAILED DESCRIPTION

[0038] The technical scheme of the utility model will be described clearly and completely below by means of specific embodiments and in conjunction with the drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0039] Please refer to Figures 1-5 The embodiment provides a tunnel side type drainage underdrain rapid integrated forming device, including the template box 1 for forming tunnel side type drainage underdrain 8, the template box 1 includes the bottom template 11 and the first side template 12 and the second side template 13 on both sides of the bottom template 11, the first side template 12, the second side template 13 are all connected with the bottom template 11 vertically;The upper portion of the template box 1 has the opening 14 distributed along the length direction of the template box, the opening 14 is provided with at least one two-way adjusting top pressure assembly 2 distributed along the width direction of the template box 1, and the two ends of the two-way adjusting top pressure assembly 2 are used for top pressure support with the upper portion of the first side template 12 and the upper portion of the second side template 13 respectively.Due to the overall prefabricated template box, the two-way adjusting top pressure assembly can be used as the transverse support at the opening of the template box, the size of the opening can be controlled, the side mold automatic contraction and enlargement of the template box are realized, the template box is facilitated to be in position and automatic demolding, operation is simple, manual disassembly of the template is not needed, construction speed is improved, labor is saved, and labor intensity is reduced.In use, the template box and the inverted arch filling end head template can form a whole, so that the tunnel side type drainage underdrain and the inverted arch filling concrete are synchronously poured, the drainage underdrain bottom and the body are simultaneously cast in situ, the whole one-time forming is realized, the drainage underdrain structure with good integrity, linear flow and neat appearance is formed, construction steps and operation time are greatly reduced, and construction joints and quality hidden dangers are reduced;When demolding and disassembling, the tunnel construction machinery can be temporarily hoisted and moved forward, process operation is realized, and construction flexibility is enhanced.

[0040] In some specific embodiments, as shown in Figure 3 The bottom of the first side template 12, the bottom of the second side template 13 and the bottom template 11 are fixedly connected by welding. In this way, the template box is integrally formed by using the 2.5mm-thick stainless steel plate, and the consistency and stability of the pouring effect are ensured due to the overall structure.

[0041] In some specific embodiments, as shown in Figure 3As shown, the upper inner side wall of the first side template 12 is provided with a first longitudinal support 15 connected with one end of the bidirectional adjusting and pressing assembly 2, and the upper inner side wall of the second side template 13 is provided with a second longitudinal support 16 connected with the other end of the bidirectional adjusting and pressing assembly 2. The first longitudinal support 15 and the second longitudinal support 16 are distributed along the length direction of the template box 1, thereby having a better supporting effect.

[0042] In some specific embodiments, as shown in Figure 3 As shown, the bidirectional adjusting and pressing assembly 2 includes a bidirectional threaded sleeve 21, a first screw rod 22 and a second screw rod 23. The two ends of the bidirectional threaded sleeve 21 are respectively provided with internal threads with opposite screw directions. One end of the bidirectional threaded sleeve 21 is threadedly connected with one end of the first screw rod 22. The other end of the first screw rod 22 is fixedly connected with the first longitudinal support 15. The other end of the bidirectional threaded sleeve 21 is threadedly connected with one end of the second screw rod 23. The other end of the second screw rod 23 is fixedly connected with the second longitudinal support 16. The bidirectional threaded sleeve is used as the cross brace of the upper part of the template box. The screw directions of the first screw rod and the second screw rod are opposite. The bidirectional adjusting and pressing assembly is realized by tightening or loosening the bidirectional threaded sleeve to realize the bidirectional adjustment of the elongation and the shortening, thereby realizing the automatic contraction and expansion of the side template of the template box, and further achieving the positioning and automatic demolding of the template box. As an example, the number of the bidirectional adjusting and pressing assemblies 2 is five.

[0043] In some embodiments, one or more template boxes can be spliced according to the construction length, thereby improving the construction efficiency.

[0044] As an improved embodiment, referring to Figure 2 and Figure 3 The bidirectional threaded sleeve 21 is provided with a jack 211 for facilitating the twisting adjustment. In this way, a straight rod can be inserted into the jack of the bidirectional threaded sleeve to be twisted, thereby facilitating the driving of the rotation of the bidirectional threaded sleeve to realize the automatic contraction and expansion of the side template of the template box.

[0045] In some specific embodiments, as shown in Figure 3 The lower inner side wall of the first side template 12 is provided with a third longitudinal support 17, and the lower inner side wall of the second side template 13 is provided with a fourth longitudinal support 18. At least one transverse support 3 is connected between the third longitudinal support 17 and the fourth longitudinal support 18. Through the cooperation of the transverse support, the third longitudinal support and the fourth longitudinal support, the lower part of the template box can be supported to avoid deformation.

[0046] As an example, the number of the transverse supports 3 is four.

[0047] As a preferred embodiment, as shown in Figure 1 The third longitudinal support 17 and the fourth longitudinal support 18 are both distributed along the length direction of the formwork box 1, thereby having a better supporting effect.

[0048] In some specific embodiments, the first longitudinal support 15, the second longitudinal support 16, the third longitudinal support 17, the fourth longitudinal support 18 and the transverse support 3 are 18# H-shaped steel.

[0049] Further, referring to Figure 4 and Figure 5 , the rapid integrated forming device for the tunnel side type drainage underdrain further comprises a plurality of pre-buried supports 4 for supporting the formwork box 1, the pre-buried supports 4 being arranged on the inverted arch lining 5 in a longitudinal direction; the two ends of the formwork box 1 are respectively connected with inverted arch filling end head formworks 6, and a pouring space for pouring inverted arch filling concrete 7 is enclosed between the formwork box 1, the inverted arch filling end head formworks 6 and the inverted arch lining 5. Specifically, the pre-buried support 4 comprises two vertically distributed vertical columns 41 and a horizontally distributed crossbar 42, the two ends of the crossbar 42 being respectively fixedly connected with the two vertical columns 41. As an example, the vertical column and the crossbar adopt φ32 steel bars. The height of the crossbar is positioned by lofting to realize elevation unification, and the number of the pre-buried supports can be increased according to the length requirement of one-time operation, thereby ensuring the flexibility of construction flow length.

[0050] Referring to Figure 4 and Figure 5 , the construction process is as follows:

[0051] (1) Install the pre-buried support: after the inverted arch lining 5 is completed, according to the lofting data, a pre-buried support 4 is installed on the inverted arch lining 5 every 3 meters in the longitudinal direction, thereby providing coordinates and elevation positioning for the subsequent formwork box, and simultaneously serving as a temporary support structure of the formwork box.

[0052] (2) Install the formwork system: adjust the two-way threaded sleeve 21, and adjust the cross-sectional dimension of the pre-processed formwork box 1 to be consistent with the cross-sectional dimension of the tunnel side type drainage underdrain 8, thereby ensuring that the structural dimension of the tunnel side type drainage underdrain is consistent with the design drawing, and ensuring the stability and accuracy of the formwork; then use small lifting equipment such as excavators, forklifts and the like to lift the formwork box 1, ensure the positional accuracy and stability of the formwork box 1, and then install the inverted arch filling end head formwork 6 and the construction joint waterstop.

[0053] (3) Pour the concrete: perform the concrete pouring operation, and pour the inverted arch filling concrete and the drainage underdrain concrete at one time, form the inverted arch filling concrete 7 with the tunnel side type drainage underdrain 8, and ensure that the concrete filling is dense and uniform; then perform the moisture and heat preservation curing, to ensure the overall density and durability of the filling concrete.

[0054] (4) Template automatic demolding and forward: after the concrete solidification, the two-way threaded sleeve 21 is twisted to make the template box 1 automatically loosen and demold, then the template box 1 is moved to the next construction position by using small lifting equipment such as excavator, forklift and the like, and the section size is reset.

[0055] (5) Cycle construction: repeat the above steps until the construction of all inverted arches and side type drainage underdrains is completed.

[0056] The above embodiments only exemplarily illustrate the concept and technical solution of the utility model, and are not used to limit the utility model. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the utility model. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought disclosed by the utility model should be covered by the claims of the utility model.

[0057] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the specification is described in this way only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A device for rapidly forming a tunnel side drainage ditch, comprising a template box for forming a tunnel side drainage ditch, characterized in that: The template box includes a bottom template and a first side template and a second side template located on both sides of the bottom template, and the first side template and the second side template are both vertically connected to the bottom template; the upper part of the template box has an opening distributed along the length direction of the template box, and the opening is provided with at least one bidirectionally adjustable top pressing assembly distributed along the width direction of the template box, and the two ends of the bidirectionally adjustable top pressing assembly are respectively used for top pressing support with the upper part of the first side template and the upper part of the second side template.

2. The tunnel side drainage ditch rapid integrated forming device according to claim 1 is characterized in that: The bottom template, the first side template, and the second side template are all made of 2.5 mm thick stainless steel plates. The bottom of the first side template and the bottom of the second side template are respectively welded and fixedly connected to both sides of the bottom template.

3. The tunnel side drainage ditch rapid integrated forming device according to claim 1 is characterized in that: The upper inner wall of the first side formwork is provided with a first longitudinal support member connected to one end of the bidirectionally adjustable top pressing assembly, and the upper inner wall of the second side formwork is provided with a second longitudinal support member connected to the other end of the bidirectionally adjustable top pressing assembly, and the first longitudinal support member and the second longitudinal support member are both distributed along the length direction of the formwork box.

4. The tunnel side drainage ditch rapid integrated forming device according to claim 3 is characterized in that: The bidirectional adjustment pressing assembly includes a bidirectional threaded sleeve, a first screw and a second screw. Both ends of the bidirectional threaded sleeve are respectively provided with internal threads with opposite spiral directions. One end of the bidirectional threaded sleeve is threadedly connected to one end of the first screw, and the other end of the first screw is fixedly connected to the first longitudinal support member. The other end of the bidirectional threaded sleeve is threadedly connected to one end of the second screw, and the other end of the second screw is fixedly connected to the second longitudinal support member.

5. The tunnel side drainage ditch rapid integrated forming device according to claim 4 is characterized in that: The bidirectional threaded sleeve is provided with a socket for easy twisting adjustment.

6. The tunnel side drainage ditch rapid integrated forming device according to claim 3 is characterized in that: The lower inner side wall of the first side formwork is provided with a third longitudinal support member, the lower inner side wall of the second side formwork is provided with a fourth longitudinal support member, and at least one transverse support member is connected between the third longitudinal support member and the fourth longitudinal support member.

7. The tunnel side drainage ditch rapid integrated forming device according to claim 6 is characterized in that: The third longitudinal support member and the fourth longitudinal support member are both distributed along the length direction of the template box.

8. The tunnel side drainage ditch rapid integrated forming device according to claim 6 is characterized in that: The first longitudinal support member, the second longitudinal support member, the third longitudinal support member, the fourth longitudinal support member, and the transverse support member are 18# I-beams.

9. The tunnel side drainage ditch rapid integrated forming device according to any one of claims 1 to 8, characterized in that: It also includes several embedded brackets for supporting the formwork box, which are arranged at intervals along the longitudinal direction on the inverted arch lining; both ends of the formwork box are respectively connected to the inverted arch filling end formwork, and a pouring space for pouring the inverted arch filling concrete is formed between the formwork box, the inverted arch filling end formwork and the inverted arch lining.

10. The tunnel side drainage ditch rapid integrated forming device according to claim 9, characterized in that: The embedded bracket includes two vertically distributed columns and a horizontally distributed crossbar, and both ends of the crossbar are fixedly connected to the two columns respectively.

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