A highway tunnel waterproof laying system and construction method

Abstract

The application discloses a highway tunnel waterproof laying system and a construction method, and belongs to the technical field of tunnel waterproofing. The system comprises a flattening mechanism, wherein a flattening roller of the flattening mechanism is rotatably arranged on a roller frame. A roller edge of the flattening roller is provided with a flattening belt to flatten the waterproof belt passing through the roller edge. The flattened waterproof belt is connected with a pressing head, and the pressing head is installed on a rotating support of a rotating mechanism. The rotating mechanism drives the rotating support to rotate around the circumferential direction of the inner wall of the tunnel. The waterproof roll laid by the system has high adhesion to the inner wall of the tunnel, and is not prone to phenomena such as wrinkles and bubbles, and has better laying effect and stronger practicability.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tunnel waterproofing, more particularly, to a highway tunnel waterproofing laying system and construction method. BACKGROUND

[0002] In the construction of highway tunnels, directional construction is generally carried out by blasting method. After blasting construction, a reinforcing cage is first prefabricated around the inner wall of the tunnel, and the prefabricated reinforcing cage is closed up by a shaped coaming. Concrete is sprayed between the prefabricated reinforcing cage and the coaming by a concrete spraying device, thereby forming a concrete support inner wall to strengthen the strength of the tunnel inner wall. After the above construction, waterproofing treatment of the tunnel is crucial. At present, in the construction of tunnel waterproofing, the waterproofing material is mainly laid manually. The waterproofing board is attached to the base layer coated with oil-based glue by rivets. This manual method of laying waterproofing material is low in efficiency and long in construction period. In addition, air bubbles may exist between the waterproofing material and the base layer when the waterproofing material is laid manually, which may cause wrinkles in the waterproofing material and uneven application of glue.

[0003] To solve the above problems, a patent document CN110821531A discloses an automatic laying device for waterproofing material in tunnel construction, which comprises a laying device for laying waterproof cloth and geotextile, nailing and hot melting fixation, and a walking and lifting driving device. An electric control device is used for automatic control of the position adjustment parameters and nailing distance parameters of the laying device. The electric control device is fixedly arranged on the walking and lifting driving device. A hydraulic control system is used for automatic hydraulic control of the laying device and the walking and lifting driving device. The hydraulic control system is fixedly arranged on the walking and lifting driving device. A pneumatic control system is fixedly arranged on the walking and lifting driving device. This automatic laying device for waterproofing material in tunnel construction greatly reduces manual work during operation and improves the laying efficiency of the waterproofing layer. However, the laying quality of the waterproofing material cannot be improved by using this patent solution.

[0004] Therefore, how to ensure the laying efficiency of waterproofing material and meet the high quality requirements of waterproofing is a difficult problem to be solved in the field of highway tunnel waterproofing construction. SUMMARY

[0005] 1. Technical problem to be solved by the present application

[0006] The present application aims to overcome the poor laying quality of highway tunnel waterproofing in the prior art, and provides a highway tunnel waterproofing laying system and construction method. By arranging the flattening mechanism in the laying system, the waterproofing material is flattened, so that the waterproofing material can tightly cover the tunnel inner wall. On the basis of automatic laying of waterproofing material, the construction quality of highway tunnel waterproofing is improved.

[0007] 2. Technical solution

[0008] To achieve the above object, the technical solution provided by the application is:

[0009] A highway tunnel waterproof laying system, comprising a flattening mechanism, a flattening roller of the flattening mechanism is rotatably arranged on a roller frame; the roller rim of the flattening roller is provided with a flattening belt to flatten the waterproof belt passing through the roller rim; the flattened waterproof belt is connected with a pressing head, the pressing head is installed on a rotating support of a rotating mechanism, and the rotating mechanism drives the rotating support to rotate around the circumferential direction of the inner wall of the tunnel.

[0010] Further, the flattening belt is a closed belt and both ends of the belt are arranged on the belt roller, so that the outer side of the flattening belt is in abutment with the outer edge of the roller body of the flattening roller.

[0011] Further, the rotating mechanism comprises a rotating track, rotating support wheels are arranged on the rotating support, the rims of the two groups of rotating support wheels are in abutment with the inner and outer annular surfaces of the rotating track; a rotating gear ring concentrically arranged with the rotating track, a rotating motor fixedly connected with the rotating support, the rotating motor is matched with the rotating gear ring through a rotating gear, and the rotating of the rotating support is realized.

[0012] Further, the rotating support wheels are rotatably arranged on a rotating wheel frame, the rotating wheel frame has a compression slide rod in sliding cooperation with the rotating support and arranged along the radial direction of the rotating track, and a compression spring is sleeved on the compression slide rod.

[0013] Further, the rotating support is installed on a variable-diameter mechanism, the variable-diameter mechanism drives the rotating support to move along the radial direction of the tunnel, so that the pressing head is close to or away from the inner wall of the tunnel.

[0014] Further, the variable-diameter mechanism comprises a variable-diameter slide rod arranged along the radial direction of the rotating track, the inner side of the rotating track is connected with a variable-diameter support plate concentrically arranged therewith, the variable-diameter support plate is connected with a variable-diameter driving part, and the variable-diameter driving part drives the variable-diameter support plate to slide along the variable-diameter slide rod.

[0015] Further, a gluing mechanism is installed on the inner side of the flattening roller, the annular surface of the flattening roller is provided with an opening, and the gluing pipe head of the gluing mechanism is directed to the belt surface of the flattening belt through the opening.

[0016] Further, the gluing pipe head is installed on a gluing frame, and the gluing frame is connected with a sliding mechanism to drive the gluing pipe head to be inserted into or away from the opening.

[0017] Further, a spraying head is arranged on the side of the pressing head, which is used for spraying waterproof paint to the waterproof belt covering the inner wall of the tunnel.

[0018] The application further provides a construction method for tunnel waterproof laying by using the highway tunnel waterproof laying system.

[0019] S1, opening a pipe embedding groove at a leakage position and removing sundries in the pipe embedding groove;

[0020] S2, fixing a grouting pipe in the pipe embedding groove;

[0021] S3, injecting grouting material into the grouting pipe by a grouting pump according to a preset pressure, stopping grouting after the grouting material fills the grouting pipe, and cleaning an inner wall of the tunnel lining to form a flat base surface;

[0022] S4, covering and pressing the waterproof tape along a circumferential direction of the lining of the inner wall of the tunnel by the pressing head to form a waterproof layer, and then starting the spraying head to apply waterproof paint to an outer layer of the lining of the inner wall of the tunnel to form a flat and smooth waterproof surface.

[0023] 3. Beneficial effects

[0024] Compared with the prior art, the technical scheme provided by the application has the following beneficial effects:

[0025] (1) When the laying system is applied, a plurality of sets of flattening rollers on the flattening mechanism cooperate with the flattening belt to effectively expand and extrude the waterproof tape, and then the extruded and flattened waterproof tape is rotated along the circumferential direction of the inner wall of the tunnel by the pressing head to press the waterproof tape at the position of the inner wall of the tunnel, so as to fill and cover the surface layer cracks of the inner wall of the tunnel and block the water vapor of the inner wall of the tunnel. The waterproof roll laid by the system has high adhesion to the inner wall of the tunnel and is not prone to wrinkles, bubbles and other phenomena, has better laying effect and stronger practicality.

[0026] (2) The laying system includes a gluing mechanism for performing gluing operation on one side of the flattened waterproof tape. Before the waterproof tape covers the tunnel lining, the gluing mechanism uniformly applies waterproof glue to the surface of the waterproof tape, so that the waterproof tape is more firmly combined with the tunnel lining and the waterproof tape is prevented from falling off.

[0027] (3) The laying system further has a diameter changing mechanism, which includes a diameter changing sliding rod arranged along the radial direction of a rotating track, a diameter changing support plate concentrically arranged inside the rotating track, a diameter changing driving part connected with the diameter changing support plate, and the diameter changing support plate slides along the length direction of the diameter changing sliding rod driven by the diameter changing driving part. By the arrangement of the diameter changing mechanism, the laying system can adapt to tunnel waterproof work of various sizes. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 is a side view of the flattening mechanism;

[0029] Figure 2 is a front view of the flattening mechanism;

[0030] Figure 3 is a structural schematic diagram of the flattening mechanism;

[0031] Figure 4 is a structural schematic diagram of the flattening mechanism from another perspective;

[0032] Figure 5 is a structural schematic diagram of the flattening mechanism after removing the roller frame;

[0033] Figure 6 is a front view of the flattening mechanism after removing the roller frame;

[0034] Figure 7 is a structural schematic diagram of the cooperation between a single flattening roller and the flattening belt in the flattening mechanism;

[0035] Figure 8 is a front view of the structure shown in Figure 7 is a schematic diagram of the structure from another perspective;

[0036] Figure 9 is a front view of the cooperation between a single flattening roller and the flattening belt in the flattening mechanism;

[0037] Figure 10 is a structural schematic diagram of a plurality of pressing heads, a diameter changing mechanism, and a rotating mechanism;

[0038] Figure 11 is a front view of the structure shown in Figure 10 is a schematic diagram of the structure from another perspective;

[0039] Figure 12 is a front view of the highway tunnel waterproof paving system;

[0040] Figure 13 is a structural schematic diagram of a single pressing head, a diameter changing mechanism, and a rotating mechanism;

[0041] Figure 14 is a front view of the structure shown in Figure 13 is a schematic diagram of the structure from another perspective;

[0042] Figure 15 is a structural schematic diagram of an embodiment of the diameter changing mechanism;

[0043] Figure 16 is a structural schematic diagram of another embodiment of the diameter changing mechanism.

[0044] Explanation of the reference numerals in the schematic diagrams:

[0045] 100, flattening mechanism; 110, flattening roller; 111, opening; 1111, connecting branch plate; 1112, support rod; 1122, connecting rod; 112, rolling ring; 1121, convex column; 120, roller holder; 130, flattening belt; 131, belt roller; 1311, roller holder; 1312, tensioning slide rod; 1313, tensioning machine frame; 1314, tensioning spring; 132, supporting belt roller; 140, glue coating pipe head; 141, glue coating frame; 142, sliding rod; 143, sliding machine frame; 144, sliding spring; 145, driving slide plate; 146, driving cam; 147, driving motor; 150, cover pressing brush plate; 151, perforation; 152, cover pressing support; 153, cover pressing slide rod; 154, cover pressing spring; 160, support frame body;

[0046] 200, pressing head;

[0047] 300, rotating support; 310, rotating support wheel; 311, rotating wheel frame; 312, compression slide rod; 313, compression spring; 320, rotating track; 321, variable-diameter branch plate; 322, variable-diameter lever; 323, variable-diameter turntable; 3231, lever sliding hole; 3232, lever gear ring; 3233, lever gear; 3234, lever motor; 330, variable-diameter slide rod; 340, rotating gear ring; 341, rotating gear; 342, rotating motor; 360, guide track; 370, variable-diameter rack; 380, variable-diameter gear disc; 381, worm wheel; 382, worm; 383, driving motor. DETAILED DESCRIPTION

[0048] For a further understanding of the present application, reference will be made to the following detailed description of the application taken in conjunction with the accompanying drawings and embodiments.

[0049] The structures, proportions, sizes, etc. shown in the drawings of the present specification are merely intended to cooperate with the content disclosed in the present specification, to be understood and read by those skilled in the art, and are not intended to limit the defined conditions under which the present application can be implemented, and therefore do not have substantial technical significance. Any modification of structure, change of proportional relationship, or adjustment of size, without affecting the effects and purposes that can be achieved by the present application, should still fall within the scope of the technical content disclosed by the present application. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and the like used in the present specification are merely for the convenience of clear description, and are not intended to limit the scope of implementation, and the change or adjustment of relative relationship, without substantially changing the technical content, is also considered as the implementation scope of the present application.

[0050] A highway tunnel waterproof laying system according to the present embodiment is shown in Figures 10 to 12As shown, the system comprises a flattening mechanism 100, the flattening rollers 110 of the flattening mechanism 100 are horizontally arranged and rotatably arranged on the roller frame 120, and the flattening rollers 110 can be arranged in multiple groups; the roller edges of the multiple groups of flattening rollers 110 are provided with flattening belts 130 to flatten the waterproof belts passing through the roller edges; the flattened waterproof belts are connected with the pressing heads 200 and then laid by pressing. Each pressing head corresponds to a flattening mechanism, and each flattening mechanism flattens the waterproof belt and then guides it out to the corresponding pressing head. The pressing head 200 is installed on the rotating bracket 300 of the rotating mechanism, and the rotating mechanism drives the rotating bracket 300 to rotate around the circumferential direction of the tunnel inner wall.

[0051] Through the cooperation of multiple groups of flattening rollers on the flattening mechanism and the flattening belts, the waterproof belt can be effectively unfolded and extruded to be widened, and then the extruded and flattened waterproof belt is rotated along the circumferential direction of the tunnel inner wall by the pressing head, so as to press the waterproof belt on the position of the tunnel inner wall, so as to fill and cover the surface layer cracks of the tunnel inner wall. On the basis of automatic laying of waterproof materials, the construction quality of the waterproof materials is improved.

[0052] In order to make the laying effect of the highway tunnel waterproof laying system of the embodiment better and the application scope wider, the embodiment is further improved as follows:

[0053] For the flattening mechanism:

[0054] As shown in the figure, Figures 1 to 9 The flattening belt 130 is a closed belt and is arranged on the belt roller 131 at both ends, so that the outer side of the flattening belt 130 is in abutment with the outer edge of the roller body of the flattening roller 110.

[0055] The flattening roller 110 is in a ring structure as a whole, the flattening belt 130 is in abutment with the outer ring surface of the flattening roller 110 and flattens the waterproof belt, and the ring surface of the flattening roller 110 is provided with two groups of openings 111, which are arranged in the axial direction of the flattening roller 110. The glue applying mechanism is arranged in the two groups of openings 111 and the glue applying opening is directed to the belt surface of the flattening belt 130.

[0056] The openings 111 at this position are arranged in the circumferential direction of the flattening roller 110, which facilitates the glue applying pipe head 140 to pass through the openings 111 to apply glue to the waterproof belt.

[0057] When flattening the waterproof belt, one end of the material belt of the roll of waterproof belt passes through the combined area between the flattening roller 110 and the flattening belt 130, so as to ensure that the surface of the waterproof belt is covered with glue solution and the waterproof belt is pasted on the tunnel inner wall. The glue applying mechanism can effectively apply glue to the extruded area of the waterproof belt through the two groups of openings 111.

[0058] More specifically, in order to compress the waterproof tape and cause it to unfold and deform so that a larger volume of adhesive can adhere to the surface of the waterproof tape, a rolling ring 112 is provided in front of the two sets of openings 111. The rolling ring 112 is coaxially arranged with the flattening roller 110. Protrusions 1121 are provided at equal intervals in the circumferential direction on the outer ring surface of the rolling ring 112. The two sets of openings 111 abut against the outer ring surface of the rolling ring 112.

[0059] During the process of the rolling ring 112 squeezing the waterproof tape, the protrusion 1121 on the rolling ring 112 cooperates with the flattening belt 130 to effectively squeeze and enlarge the waterproof tape. As a result, during the adhesion of the adhesive, a larger volume of adhesive can be obtained per unit area, thereby ensuring the reliability of the adhesion between the waterproof tape and the tunnel wall.

[0060] More preferably, when performing the flattening operation on the waterproof tape, the flattening tape 130 is a closed tape with both ends set on the tape rollers 131. The inner side of the flattening tape 130 is also provided with a support tape roller 132. The two sets of tape rollers 131 make the outer side of the flattening tape 130 surround the roll body of the flattening roller 110, and make the outer side of the flattening tape 130 abut against the outer edge of the roll body of the flattening roller 110.

[0061] To ensure proper compression of the waterproof tape, such as Figures 2 to 5 As shown, two sets of belt rollers 131 are arranged horizontally and rotated on the roller frame 1311. A tensioning slide bar 1312 is provided on the roller frame 1311. The tensioning slide bar 1312 is perpendicular to the direction of the roller axis of the belt roller 131 and is slidably provided on the tensioning frame 1313. A tensioning spring 1314 is provided at one end of the tensioning slide bar 1312 that extends out of the tensioning frame 1313. The two ends of the tensioning spring 1314 abut against one end of the tensioning slide bar 1312 and the tensioning frame 1313, respectively.

[0062] The aforementioned tension spring 1314 effectively enhances the pressure on the outer side of the flattening belt 130 and the flattening roller 110, thereby ensuring the compression deformation of the waterproof belt and ensuring that the adhesive adheres reliably to the inner wall of the waterproof belt.

[0063] To connect the flattening roller 110 and the rolling ring 112, connecting support plates 1111 are respectively provided on the inner sides of the two sets of openings 111. A connecting rod 1122 is provided in the radial direction of the rolling ring 112. The connecting rod 1122 is fixed to the connecting support plate 1111. The connecting rod 1122 of adjacent flattening rollers 110 is fixed to the connecting support plate 1111 as a whole by a bracket rod 1112. The bracket rod 1112 is arranged along the axial direction of the rolling ring 112. Support frames 160 are provided at both ends of the bracket rod 1112. The support frames 160 are rotatably mounted on the roller frame 120.

[0064] More preferably, in order to implement the rubber coating operation on the waterproof belt between the flattening roller 110 and the flattening belt 130, the rubber coating mechanism includes a rubber coating pipe head 140 mounted on a rubber coating frame 141, the rubber coating frame 141 is arranged on the sliding mechanism, the sliding mechanism drives the rubber coating pipe head 140 to be matched with the two groups of openings 111, and the rubber coating pipe head 140 is arranged along the circumferential direction of the flattening roller 110.

[0065] Regarding the rotating mechanism:

[0066] The rotating mechanism includes a rotating track 320, the rotating support wheel 310 is arranged on the rotating support 300, the flanges of the two groups of rotating support wheels 310 abut against the inner and outer annular surfaces of the rotating track 320; the rotating gear ring 340 is arranged concentrically with the rotating track 320, the rotating motor 342 is fixedly connected with the rotating support 300, the rotating motor 342 is matched with the rotating gear ring 340 through the rotating gear 341, and the rotating support 300 is rotated.

[0067] The rotating support wheel 310 is rotatably arranged on the rotating wheel frame 311, the rotating wheel frame 311 has a compression slide rod 312 which is slidingly matched with the rotating support 300 and the sliding direction of which is arranged along the radial direction of the rotating track 320, and the compression spring 313 is sleeved on the compression slide rod 312.

[0068] In order to implement the installation and rotation of the pressing head 200, the waterproof belt is covered on the inner wall of the tunnel, a plurality of groups of pressing heads 200 are arranged along the length direction of the highway tunnel, the rotating support wheel 310 is arranged on the rotating support 300, the rotating support wheel 310 is arranged in two groups, the flanges of the two groups of rotating support wheels 310 abut against the inner and outer annular surfaces of the rotating track 320, the rotating track 320 is in a whole fan shape structure, and a plurality of groups of rotating tracks 320 are arranged in a semicircular structure around the center.

[0069] In the implementation of covering the waterproof belt or spraying the waterproof coating on the inner wall of the tunnel, the rotating support 300 is matched with the inner and outer annular surfaces of the rotating track 320 through the rotating support wheel 310, so that the rotating support 300 can rotate around the rotating track 320, and the operation of covering the waterproof belt and the waterproof coating on the inner wall of the tunnel can be implemented.

[0070] The rotating track 320 is arranged in three groups, and the position of the rotating track 320 in the tunnel can be adjusted synchronously through the variable-diameter mechanism, so as to adapt to tunnels of different sizes.

[0071] More specifically, the two sets of rotating support wheels 310 are rotatably arranged on the rotating wheel frame 311, the rotating wheel frame 311 is provided with a compression slide rod 312, the compression slide rod 312 is in sliding fit with the rotating support frame 300 and the sliding direction is arranged along the radial direction of the rotating track 320, the compression spring 313 is sleeved on the compression slide rod 312, and the two ends of the compression spring 313 are respectively abutted against the rotating wheel frame 311 and the rotating support frame 300.

[0072] The two sets of rotating support wheels 310 are combined with the rotating track 320 through the compression spring 313, and under the elastic force of the compression spring 313, the pressing head 200 is elastically extruded against the inner wall of the tunnel, so that the waterproof belt is effectively pressed against the inner wall of the tunnel and reliable combination of the waterproof belt and the inner wall of the tunnel is ensured.

[0073] As shown in Figure 13 , Figure 14 , in order to implement the rotation of the pressing head 200 or the spraying head, the rotating mechanism comprises a rotating gear ring 340, the rotating gear ring 340 is concentrically arranged with the rotating track 320, the rotating gear ring 340 is matched with a rotating gear 341, the rotating gear 341 is connected with a rotating motor 342, and the rotating motor 342 is connected with the rotating support frame 300.

[0074] More specifically, in order to implement the rotation operation of the rotating support frame 300, a guide roller is arranged on the rotating support frame 300, the wheel core of the guide roller is horizontally and rollingly arranged on a guide track 360, the rotating track 360 is arranged along the radial direction of the rotating gear ring 340, and the rotating motor 342 is fixedly connected with one side of the rotating track 360 through a mounting bracket.

[0075] Regarding the variable-diameter mechanism:

[0076] The rotating support frame 300 is mounted on the variable-diameter mechanism, the variable-diameter mechanism drives the rotating support frame 300 to move along the radial direction of the tunnel, so that the pressing head 200 approaches or moves away from the inner wall of the tunnel.

[0077] When the waterproof belt and the waterproof coating are implemented to cover the inner wall of the tunnel, the rotating support frame 300 is mounted on the variable-diameter mechanism, the variable-diameter mechanism is used to drive the rotating support frame 300 to move along the radial direction of the highway tunnel and make the pressing head 200 approach or move away from the inner wall of the highway tunnel.

[0078] The variable-diameter mechanism can effectively adjust the distance between the pressing head 200 and the spraying head and the inner wall of the highway tunnel, so that the spraying and covering distance of the pressing head 200 and the spraying head can be effectively adjusted, so that the waterproof belt and the waterproof coating can reliably cover the inner wall of the tunnel, and through the adjustment of the variable-diameter mechanism, the system can be adapted to tunnels with different diameters.

[0079] The diameter changing mechanism comprises diameter changing sliding rods 330 arranged along the radial direction of the rotating track 320, and a diameter changing support plate 321 is arranged concentrically on the inner side of the rotating track 320, the diameter changing support plate 321 is connected with the diameter changing driving part, and the diameter changing driving part drives the diameter changing support plate 321 to slide along the length direction of the diameter changing sliding rod 330.

[0080] More specifically, in order to adapt the device to waterproof work in tunnels of various sizes, the diameter changing mechanism comprises diameter changing sliding rods 330 arranged in parallel and spaced apart in two groups along the radial direction of the rotating track 320, and a diameter changing support plate 321 is arranged on the rotating track 320, the diameter changing support plate 321 is arranged on the inner side of the circle where the rotating track 320 is located, and the diameter changing sliding rod 330 and the diameter changing support plate 321 form a sliding fit.

[0081] The diameter changing support plate 321 is connected with the diameter changing driving part. As an embodiment of the diameter changing driving part, a deformed push rod 322 is arranged on the diameter changing support plate 321, the deformed push rod 322 forms a sliding fit with a diameter changing turntable 323, the diameter changing turntable 323 rotates and drives the deformed push rod 322 to slide along the length direction of the diameter changing sliding rod 330.

[0082] By starting the rotation of the diameter changing turntable 323, the deformed push rod 322 can be effectively pushed, and with the pushing of the deformed push rod 322, the diameter changing support plate 321 slides along the diameter changing sliding rod 330 to adjust the radial direction of the rotating track 320.

[0083] More preferably, as shown in Figure 15 , the diameter changing turntable 323 is provided with a push sliding hole 3231, the push sliding hole 3231 is arranged in a whole circular arc shape, the deformed push rod 322 is inserted into the push sliding hole 3231, the outer ring of the diameter changing turntable 323 is provided with a push gear ring 3232, the push gear ring 3232 cooperates with a push gear 3233, and the push gear 3233 is connected with a push motor 3234.

[0084] By starting the above-mentioned push motor 3234 to rotate the worm, the worm cooperates with the worm gear, the core of the worm gear is connected with the push gear 3233, and the rotation of the push gear 3233 is implemented to drive the diameter changing turntable 323, and the sliding of the diameter changing sliding rod 330 adjusts the radial direction of the rotating track 320.

[0085] As another embodiment of the diameter changing driving part, as shown in Figure 11 , Figure 16As shown, the clamping rack and the gear disc of the three-jaw chuck are used to adjust the radial direction of the rotating track 320. The variable-diameter rack 370 is arranged on the variable-diameter support plate 321 and arranged along the radial direction of the rotating track 320. The variable-diameter rack 370 cooperates with the variable-diameter gear disc 380. The core of the variable-diameter gear disc 380 is horizontally arranged. During the rotation of the variable-diameter gear disc 380, the synchronous rotation of the plurality of variable-diameter racks 370 is realized, so as to adjust the radial direction of the plurality of rotating tracks 320. The plurality of variable-diameter gear discs 380 are connected through the connecting shaft. The connecting shaft is provided with the worm gear 381 at one end. The worm gear 381 cooperates with the worm shaft 382. The worm shaft 382 is connected with the driving motor 383. The driving motor 383 is started to rotate the plurality of variable-diameter gear discs 380, so as to synchronously adjust the plurality of rotating tracks 320, so as to adapt to the tunnel construction operation of different sizes.

[0086] Regarding the gluing mechanism:

[0087] The inner side of the flattening roller 110 is provided with the gluing mechanism. The annular surface of the flattening roller 110 is provided with the opening 111. The gluing pipe head 140 of the gluing mechanism penetrates through the opening 111 and points to the belt surface of the flattening belt 130.

[0088] As a preferred scheme of the present application, the plurality of flattening rollers 110 are respectively provided with the gluing mechanism. The gluing mechanism is used to uniformly glue the side of the flattened waterproof belt.

[0089] When the waterproof belt is covered on the inner wall of the tunnel lining during the waterproof operation after the construction of the tunnel, the gluing mechanism is used to uniformly glue the waterproof glue on the surface of the waterproof belt, so as to cover the waterproof glue on the surface of the waterproof belt, so that the waterproof belt is reliably combined with the lining of the inner wall, and the waterproof belt is prevented from falling off.

[0090] The gluing pipe head 140 is installed on the gluing frame 141. The gluing frame 141 is connected with the sliding mechanism, so as to drive the gluing pipe head 140 to be inserted into or away from the opening 111.

[0091] The gluing pipe head 140 is driven by the sliding mechanism to be inserted into the two openings 111, so that the gluing pipe head 140 can be effectively combined with the waterproof belt between the flattening roller 110 and the flattening belt 130. The glue is extruded on the waterproof belt by starting the conveying pump.

[0092] More preferably, to ensure even application of the adhesive squeezed onto the waterproof tape, a pressure brush plate 150 is provided at the front end of the adhesive applicator 140. The pressure brush plate 150 has a perforation 151, through which the adhesive applicator 140 passes. Both ends of the pressure brush plate 150 are fixed to the pressure bracket 152. The pressure bracket 152 is slidably mounted on the adhesive applicator 141 via a pressure slide rod 153. The pressure slide rod 153 is arranged parallel to the length of the adhesive applicator 140. A pressure spring 154 is sleeved on the pressure slide rod 153, with both ends of the pressure spring 154 abutting against the pressure bracket 152 and the adhesive applicator 141, respectively.

[0093] Under the squeezing action of the cover pressure brush 150, the cover pressure brush 150 can effectively and reliably bond to the inside of the waterproof strip. As the waterproof strip is squeezed and unfolded, the squeeze roller brush of the cover pressure brush 150 can effectively and evenly cover the waterproof strip, ensuring reliable adhesion between the waterproof strip and the tunnel wall.

[0094] More preferably, such as Figures 5 to 8 As shown, to drive the entire glue applicator head 140, a sliding mechanism includes a sliding rod 142, which is arranged parallel to the length of the glue applicator head 140. A glue applicator frame 141 is slidably mounted on the sliding rod 142. Both ends of the sliding rod 142 are mounted on a sliding frame 143. A sliding spring 144 is sleeved on the sliding rod 142. Both ends of the sliding spring 144 abut against the sliding frame 143 and the glue applicator frame 141, respectively. A drive slide plate 145 is mounted on the glue applicator frame 141. A drive cam 146 is mounted on the side of the drive slide plate 145. The drive cam 146 abuts against one side of the drive slide plate 145 and its wheel center is connected to the shaft of the drive motor 147.

[0095] By starting the drive motor 147, the sliding spring 144 is compressed, thereby enabling the glue applicator 140 to engage with the two sets of openings 111, thus allowing the glue applicator 140 to effectively connect with the waterproof strip between the flattening roller 110 and the flattening belt 130.

[0096] In this embodiment, a spray head is provided on the side of the pressing head 200 for spraying waterproof coating onto the waterproof strip covering the tunnel inner wall. When waterproofing work is carried out after the tunnel construction is completed, after the waterproof strip covers the inner wall of the tunnel lining, the spray head applies waterproof coating to the surface of the waterproof strip during the adhesive application operation on the inner wall of the tunnel, making the inner wall of the tunnel smooth and further improving the waterproofness of the tunnel.

[0097] Based on the above-mentioned highway tunnel waterproofing paving system, this invention also provides a construction method, specifically including the following steps:

[0098] S1. Open a pipe trench at the leakage point and remove debris from the pipe trench;

[0099] The width of the pipe-embedding groove is centered on the leakage joint of the leakage site, and the depth of the pipe-embedding groove is not less than one half of the thickness of the tunnel wall.

[0100] S2, fixing the grouting pipe in the pipe-embedding groove;

[0101] The pipe wall of the grouting pipe is provided with a plurality of pores for passing the grouting material, and the pipe wall of the grouting pipe is connected with a plurality of grouting nozzles.

[0102] S3, injecting the grouting material into the grouting pipe by the grouting pump according to the preset pressure, and stopping the grouting and cleaning the inner wall of the tunnel lining to form a smooth base surface after the grouting material fills the grouting pipe.

[0103] Specifically, the grouting pipe is filled with the grouting material by the grouting pump through the grouting nozzle according to the preset pressure; when the grouting material fills the grouting pipe, the grouting is stopped and the grouting nozzle is cut off and cleaned; the hole left by the cut-off grouting nozzle is repaired to form a smooth base surface of the inner wall of the tunnel lining.

[0104] S4, covering and pressing the waterproof tape along the circumferential direction of the lining of the inner wall of the tunnel by the pressing head 200 to form a waterproof layer, and then starting the spraying head to apply waterproof paint to the outer layer of the lining of the inner wall of the tunnel to form a smooth waterproof surface.

[0105] The grouting pipe is fixed in the pipe-embedding groove by the auxiliary clamp along the center line direction of the pipe-embedding groove, and the grouting pipe is embedded closely in the pipe-embedding groove; the grouting pipe is sealed in the pipe-embedding groove by using quick-drying cement, and the grouting nozzle protrudes from the opening of the pipe-embedding groove.

[0106] The grouting pipe is filled with the grouting material by the grouting pump through the grouting nozzle according to the preset pressure, and stopping the grouting and cleaning the inner wall of the tunnel lining to form a smooth base surface after the grouting material fills the grouting pipe.

[0107] When the grouting material overflows from the closed second grouting nozzle, the grouting pump is disconnected from the first grouting nozzle, and the first grouting nozzle is closed, wherein the second grouting nozzle is the grouting nozzle connected to the grouting pipe at the arch waist; the grouting pump is connected to the second grouting nozzle; the grouting material is injected into the grouting pipe through the second grouting nozzle according to the preset pressure, and the drain valve connected to the end of the grouting pipe is opened multiple times at intervals, wherein the drain valve is arranged at part of the tunnel arch bottom. When the grouting material overflows from the drain valve, it is determined that the grouting pipe is filled with the grouting material.

[0108] When the grouting material overflows from the closed third grouting nozzle, it is determined that the grouting pipe is filled with the grouting material, wherein the third grouting nozzle is the grouting nozzle connected to the grouting pipe at the arch bottom.

[0109] After filling the grouting pipe with the grouting material through the grouting nozzle by the grouting pump according to the preset pressure, the method further comprises: after a preset solidification time, determining whether the cutting and cleaning condition of the grouting nozzle is met according to the overflow condition of the grouting material at the end of the grouting pipe.

[0110] The method for stopping grouting and cutting and cleaning the grouting nozzle comprises: after stopping grouting, cutting and cleaning the part of the grouting nozzle protruding from the opening of the pipe slot, so that the grouting nozzle is flush with the inner wall of the lining after cutting and cleaning.

[0111] In the embodiment, the material of the waterproof belt can be a mixture of epoxy resin and additives. The waterproof belt has a composite waterproof layer of a first waterproof coating layer, a polyester non-woven fabric and a second waterproof coating layer stacked in sequence on the side close to the inner wall of the tunnel.

[0112] In addition, the material of the waterproof coating sprayed by the spraying head is a mixture of one of sprayed rapid-setting rubber asphalt waterproof coating, sprayed polyurea and sprayed acrylic salt and a third additive.

[0113] The above description of the present application and its embodiments is illustrative and not restrictive, and the embodiments shown in the drawings are only one of the embodiments of the present application, and the actual structure is not limited thereto. In order to avoid repetition of the content, the repeated contents of each embodiment are omitted, but it cannot be considered that the corresponding embodiment does not contain the features of other embodiments, and the features of different embodiments can be combined with each other. Therefore, if a person skilled in the art is inspired by it, without departing from the purpose of the present application, without creative design, similar structure and embodiments of the technical solution can be obtained, which should belong to the protection scope of the present application.

Claims

1. A highway tunnel waterproofing laying system, characterized in that, The flattening mechanism includes a flattening roller rotatably arranged on a roller frame; the roller rim of the flattening roller is provided with a flattening belt to flatten the waterproof belt passing through the roller rim; the flattening belt is a closed belt and both ends of the belt are arranged on the belt roller so that the outer side of the flattening belt is in abutment with the outer rim of the roller body of the flattening roller; The flattening roller is in a ring structure, the flattening belt is in abutment with the outer ring surface of the flattening roller and flattens the waterproof belt, the ring surface of the flattening roller is provided with two groups of openings, the two groups of openings are arranged at intervals along the axial direction of the flattening roller, and a gluing mechanism is arranged in the two groups of openings and the gluing port is directed to the belt surface of the flattening belt; the openings are arranged through along the circumferential direction of the flattening roller so that the head of the gluing pipe passes through the openings to glue the waterproof belt; Two groups of openings are provided with a rolling ring before the openings, the rolling ring is coaxially arranged with the flattening roller, the outer ring surface of the rolling ring is provided with a convex column at equal intervals along the circumferential direction, and the two groups of openings are in abutment with the outer ring surface of the rolling ring; The inner sides of the two groups of openings are respectively provided with connecting branch plates, the rolling ring is provided with a connecting rod in the radial direction, the connecting rod is fixed with the connecting branch plates, the connecting rods of adjacent flattening rollers are fixed as a whole through support rods between the connecting branch plates, and the support rods are arranged along the axial direction of the rolling ring; both ends of the support rod are provided with support frames which are rotatably arranged on the roller frame; The two groups of belt rollers are horizontally arranged and rotatably arranged on the roller frame, and the roller frame is provided with a tensioning slide rod; the tensioning slide rod is perpendicular to the roller shaft direction of the belt roller and is slidably arranged on the tensioning frame, one end of the tensioning slide rod extending out of the tensioning frame is provided with a tensioning spring, and both ends of the tensioning spring are in abutment with one end of the tensioning slide rod and the tensioning frame respectively; The flattened waterproof belt is connected with the pressing head, the pressing head is installed on the rotating support of the rotating mechanism, and the rotating mechanism drives the rotating support to rotate around the circumferential direction of the tunnel inner wall; The rotating mechanism includes a rotating track, the rotating support is provided with rotating support wheels, and the rims of the two groups of rotating support wheels are in abutment with the inner and outer ring surfaces of the rotating track; A rotating gear ring concentrically arranged with the rotating track, the rotating support is fixedly connected with a rotating motor, the rotating motor is matched with the rotating gear ring through a rotating gear, and the rotating of the rotating support is realized; A plurality of groups of pressing heads are arranged at intervals along the length direction of the highway tunnel, the rotating track is in a fan structure as a whole, and the plurality of groups of rotating tracks form a semicircular structure around the center; The rotating support is installed on a variable-diameter mechanism, the variable-diameter mechanism drives the rotating support to move along the radial direction of the tunnel, so that the pressing head is close to or away from the inner wall of the tunnel; the variable-diameter mechanism includes a variable-diameter slide rod arranged along the radial direction of the rotating track, a variable-diameter support plate concentrically arranged with the rotating track is connected to the inner side of the rotating track, the variable-diameter support plate is connected with a variable-diameter driving part, and the variable-diameter driving part drives the variable-diameter support plate to slide along the length direction of the variable-diameter slide rod. The variable-diameter driving part adopts the structure of clamping rack and gear disc of three-jaw chuck, the variable-diameter support plate is provided with variable-diameter racks arranged along the radial direction of the rotating track, the variable-diameter racks are matched with variable-diameter gear discs, the disc cores of the variable-diameter gear discs are horizontally arranged, during rotation of the variable-diameter gear discs, the synchronous rotation of the groups of variable-diameter racks is realized to adjust the radial direction of the groups of rotating tracks, and the groups of variable-diameter gear discs are connected through connecting shafts, one end of the connecting shaft is provided with a worm gear driving mechanism.

2. A highway tunnel waterproofing system as claimed in claim 1, wherein, The rotating support wheel is rotationally arranged on the rotating wheel frame, the rotating wheel frame is provided with a compression slide rod in sliding cooperation with the rotating support frame and arranged along the radial direction of the rotating track, and the compression slide rod is provided with a compression spring.

3. A highway tunnel waterproofing system as claimed in claim 1, wherein, The glue applying mechanism is provided with a glue applying pipe head mounted on a glue applying frame, the glue applying frame is connected with a sliding mechanism to drive the glue applying pipe head to be inserted into or away from the opening.

4. A highway tunnel waterproofing system as defined in claim 1, wherein, The pressing head is provided with a spraying head for spraying waterproof paint on the waterproof belt covered on the inner wall of the tunnel.

5. A construction method for tunnel waterproofing using the highway tunnel waterproofing laying system according to any one of claims 1 to 4, characterized in that, The method comprises the following steps: S1, a pipe embedding groove is formed at the leakage position and the sundries in the pipe embedding groove are removed; S2, a grouting pipe is fixed in the pipe embedding groove; S3, a grouting pump is used to inject grouting material into the grouting pipe according to a preset pressure, the grouting is stopped after the grouting material fills the grouting pipe, and the inner wall of the tunnel lining is cleaned to form a smooth base surface; S4, the waterproof belt is covered and pressed along the circumferential direction of the lining of the inner wall of the tunnel by the pressing head to form a waterproof layer, and the spraying head is started to apply waterproof paint on the outer layer of the lining of the inner wall of the tunnel to form a smooth waterproof surface.

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