Supporting device suitable for narrow roadway

Abstract

The utility model relates to a supporting device suitable for a narrow roadway, which comprises a groove formed by digging in the narrow roadway, a concrete cushion layer is laid at the bottom of the groove, and a plurality of light high-strength baffles which are sequentially spliced are respectively installed on the groove walls on the two sides of the groove. The light high-strength baffles are fixed to the groove wall of the groove through the upper anchoring mechanism and the lower fixing mechanism, the adjacent light high-strength baffles located on the same side of the groove are connected through the quick-release fasteners, and the water-swelling waterstop is clamped between the adjacent light high-strength baffles located on the same side of the groove. A supporting mechanism is installed between the light high-strength baffles on the two sides of the groove. The supporting device is simple in structure and can be manually installed by workers, and the influence on the surrounding environment during installation is reduced; the supporting strength of the light high-strength baffle is improved by arranging the side coaming and the reinforcing rib plate, and the stability of supporting and protecting the side wall of the groove is guaranteed; and the first lightening holes and the second lightening holes are formed to reduce the weight of the light high-strength baffle, so that the light high-strength baffle is convenient to carry manually.

Description

Technical Field

[0001] The utility model relates to the field of construction, in particular to a supporting device suitable for narrow lanes. Background Art

[0002] When trenches need to be excavated for underground pipe network reconstruction in tunnels, the shape and size of the tunnels are often affected by multiple factors such as geological conditions, surrounding environment and design requirements. Especially in narrow tunnels, due to space limitations, conventional support methods are difficult to implement, the operation is difficult and the safety is low.

[0003] Construction is often carried out in narrow alleys, which requires not only the safety of trench excavation and support, but also the safety of surrounding building structures. However, traditional support methods have two problems. First, the space is narrow, which makes it difficult for machinery to enter the site and construction difficult. Second, the application of traditional support piles (channel steel, steel sheet piles, steel plates, etc.) will itself cause certain damage to the houses. For areas with poor geology, the construction of the support structure is particularly damaging to the road surface and houses. Utility Model Content

[0004] The purpose of the utility model is to overcome the above problems existing in the prior art and to provide a supporting device suitable for narrow lanes.

[0005] In order to achieve the above technical objectives and the above technical effects, the present invention is implemented through the following technical solutions:

[0006] A supporting device suitable for narrow lanes includes a groove excavated in the narrow lane, a concrete cushion layer is paved at the bottom of the groove, and a plurality of lightweight high-strength baffles spliced ​​in sequence are respectively installed on the groove walls on both sides of the groove, and the lightweight high-strength baffles are fixed to the groove walls of the groove by an upper anchoring mechanism and a lower fixing mechanism, and adjacent lightweight high-strength baffles located on the same side of the groove are connected by quick-release fasteners, and a water-swellable waterstop is sandwiched between adjacent lightweight high-strength baffles located on the same side of the groove, and a supporting mechanism is installed between the lightweight high-strength baffles on both sides of the groove.

[0007] Among them, the lightweight and high-strength baffle includes a rectangular panel, a plurality of evenly distributed reserved holes are arranged on the top of the panel, and rubber sealing plugs are installed in the reserved holes in an interference fit manner; a plurality of evenly distributed first weight-reducing grooves with circular cross-sections are arranged on the back of the panel; a side panel protruding toward the back of the panel is arranged on each side of the panel, and a grid-shaped reinforcing rib plate is arranged between the back of the panel and the four side panels, a plurality of second weight-reducing grooves with rectangular cross-sections are arranged on the side panels and the reinforcing rib plates, and the back of the reinforcing rib plate and the back of the side panels are located on the same plane.

[0008] Among them, the side panels are provided with mounting holes with the same spacing, and the cross-section of the mounting holes is in the shape of a "¤". The quick-release fastener includes a round rod, the head end of the round rod is fixedly connected to a "cross"-shaped clamping block, the tail end of the round rod is fixedly connected to a circular clamping plate, the end of the clamping plate away from the round rod is fixedly connected to a handle, and the distance between the clamping block and the clamping plate is equal to the sum of the thickness of the water-swellable waterstop strip and the thickness of the two side panels. The quick-release fastener has one end of the clamping block that is rotated 30 to 60 degrees from the adjacent and connected mounting holes on the two lightweight and high-strength baffles, so that the adjacent side panels of the two lightweight and high-strength baffles are clamped between the clamping plate and the clamping block.

[0009] Among them, the upper anchoring mechanism includes a ground anchor, a cushion block, a pull rod, a double-piece steel pipe, and a butterfly clip. The lower part of the ground anchor is inserted into the ground next to the top of the groove, and the head of the pull rod is sleeved in the mounting hole at the top of the ground anchor and the circular hole in the center of the cushion block. The head of the pull rod is provided with a circle of outwardly protruding limiting flanges, and the cushion block is clamped between the limiting flange and the ground anchor; the middle part of the pull rod is sleeved in the reserved hole at the top of the lightweight and high-strength baffle plate, the butterfly clip is installed at the tail of the pull rod, and the double-piece steel pipe is clamped between the butterfly clip and the lightweight and high-strength baffle plate.

[0010] Among them, the lower fixing mechanism includes steel bars and high-strength rubber plates. The lower part of the steel bars is inserted into the soil at the bottom of the trench, and cement slurry is poured between the lower part of the steel bars and the soil at the bottom of the trench. The high-strength rubber plate is placed between the upper part of the steel bars and the lightweight high-strength baffle, and linen felt or asphalt paper felt is sandwiched between the high-strength rubber plate and the upper part of the steel bars.

[0011] Among them, the supporting mechanism includes a surrounding purlin, a U-shaped bracket, a screw, an adjusting nut, and a round steel pipe. One end of the screw is welded to the back center of the U-shaped bracket, and the other end of the screw is inserted into the round steel pipe. The adjusting nut is threaded on the screw, and one end of the adjusting nut abuts against the end of the round steel pipe. The surrounding purlin is clamped between the U-shaped bracket and the lightweight and high-strength baffle, and the surrounding purlin is stuck in the slot of the U-shaped bracket.

[0012] Among them, a movable guide rail is arranged below the lightweight and high-strength baffle plate to facilitate the movement of the lightweight and high-strength baffle plate along the length direction of the groove, a water-swellable waterstop strip is sandwiched between the bottom end of the lightweight and high-strength baffle plate and the movable guide rail, and the top of the movable guide rail is lower than the top of the concrete cushion layer.

[0013] Wherein, safety guardrails parallel to the groove are installed on the ground on both sides of the top of the groove.

[0014] The beneficial effects of the utility model are as follows: the supporting device has a simple structure and can be manually installed by workers, reducing the impact on the surrounding environment during installation; the supporting strength of the lightweight high-strength baffle is improved by arranging side panels and reinforcing ribs, thereby ensuring the stability of the support and protection of the groove side walls; the weight of the lightweight high-strength baffle is reduced by arranging the first weight-reducing hole and the second weight-reducing hole, making the lightweight high-strength baffle convenient for manual handling. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0016] Figure 1 It is a schematic diagram of the structure of the support device of the utility model installed in the groove;

[0017] Figure 2 It is a structural schematic diagram of the support device in the utility model;

[0018] Figure 3 It is a schematic diagram of the structure of two adjacent lightweight and high-strength baffles spliced ​​in the utility model;

[0019] Figure 4 It is a structural schematic diagram of a lightweight and high-strength baffle in the utility model;

[0020] Figure 5 It is an exploded view of the lightweight and high-strength baffle in the utility model;

[0021] Figure 6 It is a side view of the lightweight and high-strength baffle in the utility model;

[0022] Figure 7 It is a structural schematic diagram of the quick-release fastener in the utility model;

[0023] Explanation of the numbers in the figure: groove 100, intercepting ditch 101, blind ditch 102, ground 200, concrete cushion 1, lightweight high-strength baffle 2, panel 21, reserved hole 22, rubber sealing plug 23, first weight-reducing groove 24, side panel 25, reinforcing rib plate 26, second weight-reducing groove 27, mounting hole 28, upper anchoring mechanism 3, ground anchor 31, cushion block 32, pull rod 33, double-piece steel pipe 34, butterfly card 35, limit flange 36, lower fixing mechanism 4, steel bar 41, high-strength rubber plate 42, linen felt 43, quick-release fastener 5, round rod 51, clamp block 52, splint 53, handle 54, water-swelling waterstop 6, support mechanism 7, surrounding purlin 71, U-shaped bracket 72, screw 73, adjusting nut 74, round steel pipe 75, movable guide rail 8, safety guardrail 9. DETAILED DESCRIPTION

[0024] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0025] like Figures 1 to 7 As shown, a supporting device suitable for narrow tunnels includes a trench 100 excavated in the narrow tunnel, and a concrete cushion layer 1 is laid on the bottom of the trench 100, which not only facilitates workers to enter the trench for construction operations, but also can provide support for underground pipes that need to be laid in the trench.

[0026] A plurality of lightweight high-strength baffles 2 spliced ​​in sequence are installed on the groove walls on both sides of the groove 100. Adjacent lightweight high-strength baffles 2 on the same side of the groove 100 are connected by quick-release fasteners 5. A water-swellable waterstop 6 is sandwiched between adjacent lightweight high-strength baffles 2 on the same side of the groove 100.

[0027] The lightweight and high-strength baffle 2 includes a rectangular panel 21, and a plurality of evenly distributed reserved holes 22 are provided on the top of the panel 21, and rubber sealing plugs 23 are interference-fitted in the reserved holes 22; a plurality of evenly distributed first weight-reducing grooves 24 with circular cross-sections are provided on the back of the panel 21; a side panel 25 protruding toward the back of the panel 21 is provided on each side of the panel 21, and a grid-shaped reinforcing rib plate 26 is provided between the back of the panel 21 and the four side panels 25, and a plurality of second weight-reducing grooves 27 with rectangular cross-sections are provided on the side panels 25 and the reinforcing rib plates 26, and the back of the reinforcing rib plates 26 and the back of the side panels 25 are located on the same plane.

[0028] The side panels 25 are provided with mounting holes 28 with the same spacing, and the cross-section of the mounting holes 28 is in the shape of a "¤". The quick-release fastener 5 includes a round rod 51, and a "cross"-shaped clamping block 52 is fixedly connected to the head end of the round rod 51, and a circular clamping plate 53 is fixedly connected to the tail end of the round rod 51. A handle 54 is fixedly connected to the end of the clamping plate 53 away from the round rod 51. The distance between the clamping block 52 and the clamping plate 53 is equal to the sum of the thickness of the water-swellable waterstop 6 and the thickness of the two side panels 25. The quick-release fastener 5 has one end of the clamping block 53 rotated 30 to 60 degrees from the adjacent and connected mounting holes 28 on the two lightweight and high-strength baffles 2, so that the adjacent side panels 25 of the two lightweight and high-strength baffles 2 are clamped between the clamping plate 53 and the clamping block 52.

[0029] A movable guide rail 8 is arranged below the lightweight high-strength baffle plate 2 to facilitate the movement of the lightweight high-strength baffle plate along the length direction of the groove 100. A water-swellable waterstop strip 6 is sandwiched between the bottom end of the lightweight high-strength baffle plate 2 and the movable guide rail 8, and the top of the movable guide rail 8 is lower than the top of the concrete cushion layer 1. The movable guide rail 8 in this embodiment is made of square steel pipe.

[0030] The lightweight and high-strength baffle 2 is fixed to the groove wall of the groove 100 by the upper anchoring mechanism 3 and the lower fixing mechanism 4; the upper anchoring mechanism 3 includes a ground anchor 31, a cushion block 32, a tie rod 33, a double-piece steel pipe 34, and a butterfly clip 35. The lower part of the ground anchor 31 is inserted into the ground 200 next to the top of the groove 100, and the head of the tie rod 33 is sleeved in the mounting hole at the top of the ground anchor 31 and the circular hole in the center of the cushion block 32. The head of the tie rod 33 is provided with a circle of outwardly protruding limiting flanges 36, and the cushion block 32 is clamped between the limiting flanges 36 and the ground anchor 31. The cushion block 32 is made of multiple layers of rubber sheets bonded, pressed and vulcanized, and has sufficient rigidity, pressure load bearing, and good elasticity; the middle part of the tie rod 33 is sleeved in the reserved hole 22 at the top of the lightweight and high-strength baffle 2, and the butterfly clip 35 is installed on the tie rod At the tail of 33, the double-piece steel pipe 34 is clamped between the butterfly clamp 35 and the lightweight high-strength baffle 1. In this embodiment, the pull rod 33 uses a threaded pull rod of model M28; the lower fixing mechanism 4 includes a steel bar 41 and a high-strength rubber plate 42. The lower part of the steel bar 41 is inserted into the soil at the bottom of the groove 100, and cement slurry is poured between the lower part of the steel bar 41 and the soil at the bottom of the groove 100. The high-strength rubber plate 42 is placed between the upper part of the steel bar 41 and the lightweight high-strength baffle 2. Linen felt 43 or asphalt paper felt is sandwiched between the high-strength rubber plate 42 and the upper part of the steel bar 41. The linen felt 43 or asphalt paper felt fills the gap between the high-strength rubber plate 42 and the upper part of the steel bar 41 to ensure the stability of the lower fixing mechanism 4 in fixing the lightweight high-strength baffle.

[0031] A supporting mechanism 7 is installed between the lightweight and high-strength baffles 2 on both sides of the groove 100, and the supporting mechanism 7 includes a surrounding purlin 71, a U-shaped bracket 72, a screw 73, an adjusting nut 74, and a round steel pipe 75. One end of the screw 73 is welded to the back center of the U-shaped bracket 72, and the other end of the screw 73 is inserted into the round steel pipe 75. The adjusting nut 74 is screwed on the screw 73, and one end of the adjusting nut 74 abuts against the end of the round steel pipe 75. The surrounding purlin 71 is clamped between the U-shaped bracket 72 and the lightweight and high-strength baffle 2, and the surrounding purlin 71 is stuck in the slot of the U-shaped bracket 72.

[0032] Safety guardrails 9 parallel to the trench 100 are installed on the ground at both sides of the top of the trench 100 to prevent passers-by passing by the trench from falling into the trench.

[0033] A water intercepting ditch 101 is excavated on the ground at both sides of the top of the groove 100 to prevent the water on the ground at both sides of the top of the groove 100 from flowing into the groove. A blind ditch 102 is excavated below the concrete cushion layer 1, and the blind ditch is filled with crushed stones to facilitate the drainage of water that penetrates under the pad.

[0034] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A support device suitable for a narrow lane, comprising a trench excavated in the narrow lane, characterized in that: A concrete cushion layer is laid at the bottom of the groove, and a number of lightweight high-strength baffles spliced ​​in sequence are installed on the groove walls on both sides of the groove. The lightweight high-strength baffles are fixed to the groove walls of the groove by upper anchoring mechanisms and lower fixing mechanisms. Adjacent lightweight high-strength baffles on the same side of the groove are connected by quick-release fasteners. A water-swellable waterstop is sandwiched between adjacent lightweight high-strength baffles on the same side of the groove, and a supporting mechanism is installed between the lightweight high-strength baffles on both sides of the groove.

2. The support device according to claim 1, characterized in that: The lightweight and high-strength baffle includes a rectangular panel, a top of which is provided with a plurality of evenly distributed reserved holes, and rubber sealing plugs are interference-fitted in the reserved holes; the back of the panel is provided with a plurality of evenly distributed first weight-reducing grooves with circular cross-sections; each side of the panel is provided with a side panel protruding toward the back of the panel, a grid-shaped reinforcing rib plate is provided between the back of the panel and the four side panels, a plurality of second weight-reducing grooves with rectangular cross-sections are provided on the side panels and the reinforcing rib plates, and the back of the reinforcing rib plate and the back of the side panels are located on the same plane.

3. The support device according to claim 2, characterized in that: The side panels are provided with mounting holes with the same spacing, and the cross-section of the mounting holes is in the shape of a "¤". The quick-release fastener comprises a round rod, a "cross"-shaped clamping block is fixedly connected to the head end of the round rod, a circular clamping plate is fixedly connected to the tail end of the round rod, a handle is fixedly connected to the end of the clamping plate away from the round rod, and the distance between the clamping block and the clamping plate is equal to the sum of the thickness of the water-swellable waterstop and the thickness of the two side panels. The quick-release fastener has one end of the clamping block that is rotated 30 to 60 degrees from the adjacent and connected mounting holes on the two lightweight and high-strength baffles, so that the adjacent side panels of the two lightweight and high-strength baffles are clamped between the clamping plate and the clamping block.

4. The support device according to claim 1, characterized in that: The upper anchoring mechanism includes a ground anchor, a cushion block, a pull rod, a double-piece steel pipe, and a butterfly clip. The lower part of the ground anchor is inserted into the ground next to the top of the groove, and the head of the pull rod is sleeved in the mounting hole at the top of the ground anchor and the circular hole in the center of the cushion block. The head of the pull rod is provided with a circle of outwardly protruding limiting flanges, and the cushion block is clamped between the limiting flange and the ground anchor; the middle part of the pull rod is sleeved in the reserved hole at the top of the lightweight and high-strength baffle plate, the butterfly clip is installed at the tail of the pull rod, and the double-piece steel pipe is clamped between the butterfly clip and the lightweight and high-strength baffle plate.

5. The support device according to claim 1, characterized in that: The lower fixing mechanism includes steel bars and a high-strength rubber plate. The lower part of the steel bars is inserted into the soil at the bottom of the trench, and cement slurry is poured between the lower part of the steel bars and the soil at the bottom of the trench. The high-strength rubber plate is placed between the upper part of the steel bars and the lightweight high-strength baffle, and linen felt or asphalt paper felt is sandwiched between the high-strength rubber plate and the upper part of the steel bars.

6. The support device according to claim 1, characterized in that: The supporting mechanism includes a surrounding purlin, a U-shaped bracket, a screw, an adjusting nut, and a round steel pipe. One end of the screw is welded to the back center of the U-shaped bracket, and the other end of the screw is inserted into the round steel pipe. The adjusting nut is threaded on the screw, and one end of the adjusting nut abuts against the end of the round steel pipe. The surrounding purlin is clamped between the U-shaped bracket and the lightweight and high-strength baffle, and the surrounding purlin is stuck in the slot of the U-shaped bracket.

7. The support device according to claim 1, characterized in that: A movable guide rail is arranged below the lightweight high-strength baffle plate to facilitate the movement of the lightweight high-strength baffle plate along the length direction of the groove, a water-swellable waterstop strip is sandwiched between the bottom end of the lightweight high-strength baffle plate and the movable guide rail, and the top end of the movable guide rail is lower than the top end of the concrete cushion layer.

8. The support device according to claim 1, characterized in that: Safety guardrails parallel to the groove are installed on the ground at both sides of the groove top.

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