CN214938886U - Prevent highway road surface structure that road bed subsides - Google Patents

Abstract

The utility model relates to a highway pavement structure for preventing subgrade settlement, which belongs to the technical field of highway construction and comprises a foundation pit arranged on the ground, wherein a plurality of pre-buried columns fixed with soil below the foundation pit are pre-buried in the bottom wall of the foundation pit, the top ends of the pre-buried columns are positioned in the foundation pit, each pre-buried column is sleeved with an anti-settling pipe, and a fixing component for fixing the pre-buried columns and the anti-settling pipes mutually is arranged between the pre-buried columns and the anti-settling pipes; the upper surfaces of all the anti-settling tubes are coplanar and are fixedly provided with the same anti-settling plate, a supporting concrete layer is filled in the foundation pit and is fixed with the inner bottom wall and the side wall of the foundation pit, and the upper surfaces of the supporting concrete layer are fixedly bonded with the lower surfaces of the anti-settling plates; and a reinforced concrete layer is fixedly paved on the upper surface of the anti-settling plate, and a pavement layer is fixedly paved on the upper surface of the reinforced concrete layer. This application has the effect that improves highway anti-settling capacity.

Description

Prevent highway road surface structure that road bed subsides

Technical Field

The application relates to the field of highway construction, in particular to a highway pavement structure for preventing subgrade settlement.

Background

A highway, which literally means a road for public transportation; roads are engineering facilities for various vehicles (trackless) and pedestrians to pass through; the road is divided into urban roads, highways, factory roads, forest roads, rural roads and the like according to the use characteristics of the road.

The prior Chinese patent with reference to publication number CN201214748Y discloses a highway pavement, which comprises a continuous reinforced concrete base layer with the thickness of 20-35 cm, wherein a glass fiber grating layer with the thickness of 5-6 cm is arranged on the continuous reinforced concrete base layer, a surface layer consisting of an upper asphalt layer, a middle asphalt layer and a lower asphalt layer is arranged on the glass fiber grating layer, and the upper asphalt layer, the middle asphalt layer and the lower asphalt layer of the surface layer are connected through bonding layers.

In view of the above-mentioned related art, the inventors consider that there is a defect that the long-time traveling on the road surface causes the road to be easily settled.

SUMMERY OF THE UTILITY MODEL

In order to improve the anti-settlement capability of highway, this application provides a prevent highway pavement structure that road bed subsides.

The application provides a prevent highway road surface structure that road bed subsides adopts following technical scheme:

a highway pavement structure for preventing subgrade settlement comprises a foundation pit arranged on the ground, wherein a plurality of pre-buried columns fixed with soil below the foundation pit are pre-buried in the bottom wall of the foundation pit, the top ends of the pre-buried columns are positioned in the foundation pit, an anti-settling pipe is sleeved on each pre-buried column, and a fixing assembly for fixing the pre-buried columns and the anti-settling pipes to each other is arranged between the pre-buried columns and the anti-settling pipes; the upper surfaces of all the anti-settling tubes are coplanar and are fixedly provided with the same anti-settling plate, a supporting concrete layer is filled in the foundation pit and is fixed with the inner bottom wall and the side wall of the foundation pit, and the upper surfaces of the supporting concrete layer are fixedly bonded with the lower surfaces of the anti-settling plates; and a reinforced concrete layer is fixedly paved on the upper surface of the anti-settling plate, and a pavement layer is fixedly paved on the upper surface of the reinforced concrete layer.

Through adopting above-mentioned technical scheme, when the road surface received pressure, the pressure on road surface passes through reinforced concrete layer and transmits to on preventing subsiding the board, prevent subsiding the board with pressure transfer for supporting concrete layer and a plurality of settlement prevention pipe, because prevent that the settlement pipe passes through fixed subassembly and pre-buried post reciprocal anchorage, make in preventing that the settlement pipe transmits pressure to the soil of foundation ditch below through the pre-buried post, support concrete layer with pressure transfer to in the foundation ditch on the diapire, the pre-buried post with prevent that the settlement pipe provides powerful support to preventing subsiding the board, and then improved the settlement prevention ability of highway.

Optionally, the fixed subassembly includes that spring and two are fixed respectively at the fixed block at spring both ends, and the circumference lateral wall that the embedded column is located the foundation ditch has seted up the fixed orifices, and the spring is located the fixed block, and two fixed blocks slide at the opening part at fixed orifices both ends respectively, prevent that the intraductal circumference lateral wall of subsidence sets up a plurality of fixed slots that communicate with the fixed orifices, and when the spring was in natural state, the fixed block was located fixed block and fixed slot simultaneously.

Through adopting above-mentioned technical scheme, push the fixed block completely in the fixed orifices earlier for the spring compression will prevent on the sedimentation pipe inserts pre-buried post again, when the fixed slot removed to fixed block department, the resilience force of spring makes two fixed blocks insert the fixed slot that corresponds in, accomplishes the fixed of preventing sedimentation pipe and pre-buried post, supports concrete layer's construction again, has improved and has prevented fixed efficiency and fixed strength between sedimentation pipe and the pre-buried post.

Optionally, the upper surface of the anti-settling plate is provided with a plurality of pouring holes communicated with the anti-settling pipe, and the upper end surface of the embedded column is provided with a bonding hole communicated with the top of the fixing hole.

Through adopting above-mentioned technical scheme, toward pouring downthehole pouring building glue, pour and glue and fall into the inside of preventing the sedimentation pipe to in flowing into the fixed orifices through the adhesion hole, carry out reciprocal anchorage with spring, fixed block and pre-buried post, improved and prevented the steadiness between sedimentation pipe and the pre-buried post, and then improved the settlement effect of preventing of highway.

Optionally, a reinforcing hole is formed in the bottom of the fixing hole, and the bottom end of the reinforcing hole is downwards opened to a circumferential side wall of the embedded column located in soil below the foundation pit.

Through adopting above-mentioned technical scheme, the building glue in the fixed orifices flows to the gap between pre-buried post and the soil through strengthening the hole for it is more firm between the soil of pre-buried post and foundation ditch below, further improvement the highway prevent subsiding the effect.

Optionally, the fixed bearing plate of having laid of diapire in the foundation ditch, be equipped with a plurality of crab-bolts that bear on the bearing plate, the bottom that bears the crab-bolt will bear the board and run through in the soil of back fixed insertion foundation ditch below, prevent that the bottom butt of settling tube is at the bearing plate upper surface, support concrete layer lower surface and bear the fixed laminating of board upper surface.

Through adopting above-mentioned technical scheme, when one of them prevents that the sedimentation pipe receives pressure, the diapire can be undertaken this pressure through bearing the board in the whole foundation ditch to reduced the pressure that pre-buried post received, bearing the crab-bolt and make bearing the board more firm in the foundation ditch, and then improved the settlement-preventing ability of highway.

Optionally, the reinforcing plate is all fixedly laid on the inner side wall of the foundation pit, a plurality of reinforcing anchor bolts are arranged on one side of the reinforcing plate in the foundation pit, the reinforcing plate is penetrated through the reinforcing plate by one end of each reinforcing anchor bolt and then fixedly inserted into soil on the side of the foundation pit, the lower surface of the reinforcing plate is fixed on the bearing plate, and the upper surface of the reinforcing plate is fixed on the lower surface of the anti-settling plate.

Through adopting above-mentioned technical scheme, strengthen the crab-bolt and fix the reinforcing plate on the foundation ditch inside wall, improved the anti ability of collapsing of foundation ditch lateral part to the reinforcing plate can play the supporting role to preventing subsiding the board, further improvement the ability of preventing subsiding of highway.

Optionally, the bottom end of the anti-settling tube extends downward to the inside of the bearing plate.

Through adopting above-mentioned technical scheme, the probability that the slope appears when having reduced to prevent subsiding the resistance to compression of pipe can make prevent subsiding between pipe and the bearing plate more firm.

Optionally, the top end of the anti-settling tube extends upwards to the inside of the anti-settling plate.

Through adopting above-mentioned technical scheme, improved prevent subsiding the pipe and prevent subsiding the steadiness between the board.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the pressure of the road surface is transmitted to the anti-settling plate through the reinforced concrete layer, the anti-settling plate transmits the pressure to the supporting concrete layer and the anti-settling pipes, the anti-settling pipes are mutually fixed with the embedded columns through the fixing assemblies, so that the anti-settling pipes transmit the pressure to the soil below the foundation pit through the embedded columns, the supporting concrete layer transmits the pressure to the inner bottom wall of the foundation pit, the embedded columns and the anti-settling pipes provide powerful support for the anti-settling plate, and further the anti-settling capacity of the highway is improved;

2. pouring building glue into the pouring hole, wherein the pouring glue falls into the anti-settling tube and flows into the fixing hole through the adhesion hole, and the spring, the fixing block and the embedded column are fixed with each other, so that the stability between the anti-settling tube and the embedded column is improved, and the anti-settling effect of the road is further improved;

3. when one of them prevents that the sedimentation pipe receives pressure, the diapire can be undertaken this pressure through bearing the board in the whole foundation ditch to reduced the pressure that embedded column received, it makes bearing the board more firm in the foundation ditch to bear the crab-bolt, and then has improved the settlement-preventing ability of highway.

Drawings

FIG. 1 is a cross-sectional view of an embodiment of the present application;

fig. 2 is a partial sectional view showing the fixing assembly.

Description of reference numerals: 1. a foundation pit; 11. a pavement layer; 12. a reinforced concrete layer; 13. supporting the concrete layer; 2. an anti-settling plate; 21. pouring holes; 3. pre-embedding the column; 31. pre-burying a plate; 32. a fixing hole; 33. bonding the holes; 34. a reinforcement hole; 4. an anti-settling pipe; 41. fixing grooves; 5. a fixing assembly; 51. a spring; 52. a fixed block; 6. a bearing plate; 61. bearing an anchor bolt; 7. a reinforcing plate; 71. and (4) reinforcing the anchor bolt.

Detailed Description

The present application is described in further detail below with reference to figures 1-2.

The embodiment of the application discloses prevent highway road surface structure that road bed subsides.

Referring to fig. 1 and 2, a highway pavement structure for preventing subgrade settlement comprises a foundation pit 1 vertically arranged on the ground, wherein a supporting concrete layer 13, a settlement preventing plate 2, a reinforced concrete layer 12 and a pavement layer 11 are fixedly paved in the foundation pit 1 from bottom to top in sequence, and the pavement layer 11 is made of asphalt in the embodiment; the soil internal fixation of foundation ditch 1 below is pre-buried to have pre-buried board 31 and the vertical embedded post 3 of fixing on pre-buried board 31 that a plurality of levels set up, the top of pre-buried post 3 stretches into in supporting concrete layer 13, equal vertical the inserting is equipped with and is located the inside settling tube 4 that prevents of supporting concrete layer 13 on every pre-buried post 3, the inside of preventing settling tube 2 is inserted on the top of preventing settling tube 4, prevent all being equipped with fixed subassembly 5 between settling tube 4 and the pre-buried post 3, fixed subassembly 5 will prevent settling tube 4 and pre-buried post 3 reciprocal anchorage.

Insert earlier on the pre-buried post 3 that corresponds with preventing settling tube 4, and will prevent settling tube 4 and pre-buried post 3 fixed through fixed subassembly 5, it makes it form supporting concrete layer 13 to pour into concrete toward foundation ditch 1 in, again toward supporting concrete layer 13 go up fixed laying in proper order and prevent settling plate 2, reinforced concrete layer 12 and pavement layer 11, including supporting concrete layer 13 will prevent settling tube 4 fixed parcel, pre-buried plate 31 and pre-buried post 3 can share the pressure that the road surface received, the ability of preventing settling of highway has been improved.

Referring to fig. 1, a bearing plate 6 is fixedly laid on the inner bottom wall of a foundation pit 1, a plurality of bearing anchor bolts 61 vertically inserted into soil below the foundation pit 1 are inserted into the bearing plate 6, and the bottom end of an anti-settling tube 4 is inserted into the bearing plate 6; the inner side walls of the foundation pit 1 are fixedly paved with vertically arranged reinforcing plates 7, a plurality of reinforcing anchor bolts 71 which are horizontally inserted into soil on the side of the foundation pit 1 are inserted into the side walls of the reinforcing plates 7 positioned in the foundation pit 1, the upper surface and the lower surface of each reinforcing plate 7 are respectively fixed with the lower surface of the anti-settling plate 2 and the upper surface of the bearing plate 6, and the supporting concrete layer 13 is positioned among the bearing plate 6, the reinforcing plates 7 and the anti-settling plate 2; when one anti-settling pipe 4 receives pressure, the whole bearing plate 6 can share the pressure, and the reinforcing plate 7 can improve the strength of the side part of the foundation pit 1, so that the anti-settling capacity of the foundation pit 1 is improved.

Referring to fig. 1 and 2, the fixing assembly 5 includes a horizontally arranged spring 51 and two fixing blocks 52 fixed at two ends of the spring 51, a horizontally arranged fixing hole 32 is formed in a circumferential side wall of the embedded column 3 located in the foundation pit 1, the spring 51 is located in the fixing hole 32, and the two fixing blocks 52 horizontally slide at openings at two ends of the fixing hole 32 respectively; two fixing grooves 41 which are respectively communicated with two ends of the fixing hole 32 are symmetrically formed in the circumferential side wall of the anti-settling tube 4, and one end, away from the spring 51, of each fixing groove 41 is communicated with the inner space of the foundation pit 1; when the spring 51 is in a natural state, the fixing block 52 is positioned in the fixing hole 32 and the fixing groove 41 at the same time, and the upper surface of the fixing block 52 inserted into the fixing groove 41 is inclined upwards and faces to the direction away from the spring 51; prevent on the sedimentation pipe 4 vertical interpolation pre-buried post 3 earlier, the inclined plane of fixed block 52 receives and prevents completely getting into in the fixed orifices 32 behind the extrusion of sedimentation pipe 4, when fixed slot 41 descends to fixed block 52 department, spring 51's resilience force makes fixed block 52 insert in fixed slot 41, can make and prevent sedimentation pipe 4 and pre-buried post 3 reciprocal anchorage, and when filling the concrete toward foundation ditch 1, the concrete that supports concrete layer 13 can get into fixed slot 41 in to fix fixed block 52, the settlement-proof ability of highway has finally been improved.

Referring to fig. 1 and 2, the upper surface of the anti-settling plate 2 is provided with a plurality of pouring holes 21, each pouring hole 21 is respectively communicated with the interiors of different anti-settling tubes 4, and the upper surface of the embedded column 3, which is positioned inside the anti-settling tube 4, is provided with an adhesion hole 33 communicated with the fixing hole 32; the lower surface of the fixing hole 32 is provided with a reinforcing hole 34, and the bottom end of the reinforcing hole 34 is downwards opened to the circumferential side wall of the embedded column 3 in the soil below the foundation pit 1; pouring building glue into the pouring hole 21, enabling the building glue to flow into the fixing hole 32 through the adhesion hole 33 after entering the anti-settling tube 4, and then flowing into a gap between the embedded column 3 and soil through the reinforcing hole 34, and further improving the anti-settling capacity of the road.

The implementation principle of the highway pavement structure for preventing subgrade settlement in the embodiment of the application is as follows: when highway construction is carried out, firstly, the bearing plate 6 is fixed on the inner bottom wall of the foundation pit 1 through the bearing anchor bolt 61, the reinforcing plate 7 is fixed on the inner side wall of the foundation pit 1 through the reinforcing anchor bolt 71, then the anti-settling tube 4 is inserted into the embedded column 3, the inclined surface of the fixing block 52 is extruded by the anti-settling tube 4 and then completely enters the fixing hole 32, and when the fixing groove 41 descends to the fixing block 52, the fixing block 52 is inserted into the fixing groove 41 through the resilience force of the spring 51, so that the anti-settling tube 4 and the embedded column 3 can be mutually fixed; pouring concrete into foundation ditch 1 makes it form support concrete layer 13, will prevent subsiding board 2 and fix on support concrete layer 13 upper surface, pour into building glue again toward pouring hole 21, building glue gets into prevents that subsiding pipe 4 is interior back and flows into in fixed orifices 32 through adhesion hole 33, flow to in the gap between embedded post 3 and the soil through strengthening hole 34 again, last fixed laying reinforced concrete layer 12 and pavement layer 11 on preventing subsiding board 2 in proper order for the anti-settling capacity of highway has obtained apparent improvement.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. The utility model provides a prevent highway road surface structure that road bed subsides, includes excavation foundation ditch (1) on subaerial, its characterized in that: a plurality of pre-buried columns (3) fixed with soil below the foundation pit (1) are pre-buried in the bottom wall of the foundation pit (1), the top ends of the pre-buried columns (3) are located in the foundation pit (1), an anti-settling tube (4) is sleeved on each pre-buried column (3), and a fixing assembly (5) for fixing the pre-buried columns (3) and the anti-settling tubes (4) to each other is arranged between the pre-buried columns (3) and the anti-settling tubes (4); the upper surfaces of all anti-settling tubes (4) are coplanar and are fixedly provided with the same anti-settling plate (2), a supporting concrete layer (13) is filled in the foundation pit (1), the supporting concrete layer (13) is fixed with the inner bottom wall and the side wall of the foundation pit (1), and the upper surface of the supporting concrete layer (13) is fixedly bonded with the lower surface of the anti-settling plate (2); and a reinforced concrete layer (12) is fixedly paved on the upper surface of the anti-settling plate (2), and a pavement layer (11) is fixedly paved on the upper surface of the reinforced concrete layer (12).

2. The highway pavement structure for preventing subgrade settlement according to claim 1, characterized in that: fixed subassembly (5) are including spring (51) and two fixed block (52) of fixing respectively at spring (51) both ends, fixed orifices (32) have been seted up to the circumference lateral wall that pre-buried post (3) are located foundation ditch (1), spring (51) are located fixed block (52), two fixed block (52) slide at the opening part at fixed orifices (32) both ends respectively, prevent that the circumferential lateral wall sets up a plurality of fixed slot (41) that communicate with fixed orifices (32) in sedimentation tube (4), when spring (51) are in natural state, fixed block (52) are located fixed block (52) and fixed slot (41) simultaneously.

3. The highway pavement structure for preventing subgrade settlement according to claim 1, characterized in that: the upper surface of the anti-settling plate (2) is provided with a plurality of pouring holes (21) communicated with the anti-settling pipe (4), and the upper end surface of the embedded column (3) is provided with a bonding hole (33) communicated with the top of the fixing hole (32).

4. A road pavement structure for preventing subgrade settlement according to claim 3, characterized in that: and the bottom of the fixing hole (32) is provided with a reinforcing hole (34), and the bottom end of the reinforcing hole (34) is downwards opened to the circumferential side wall of the embedded column (3) in the soil below the foundation pit (1).

5. The highway pavement structure for preventing subgrade settlement according to claim 1, characterized in that: bearing plate (6) have been laid to the fixed bed of diapire in foundation ditch (1), are equipped with a plurality of crab-bolts (61) that bear on bearing plate (6), and the bottom that bears crab-bolt (61) will bear board (6) and run through in the soil of back fixed insertion foundation ditch (1) below, prevent the bottom butt of settling tube (4) and bearing board (6) upper surface, support concrete layer (13) lower surface and bear board (6) upper surface fixed laminating.

6. The highway pavement structure for preventing subgrade settlement according to claim 5, wherein: foundation ditch (1) inside wall is all fixed to be laid reinforcing plate (7), and one side that reinforcing plate (7) are located foundation ditch (1) is equipped with a plurality of enhancement crab-bolts (71), and the one end of strengthening crab-bolt (71) runs through back fixed insertion foundation ditch (7) in the soil of side, and reinforcing plate (7) lower surface mounting is on bearing plate (6), and reinforcing plate (7) upper surface mounting is at the lower surface of anti-settling plate (2).

7. The highway pavement structure for preventing subgrade settlement according to claim 5, wherein: the bottom end of the anti-settling pipe (4) extends downwards to the inside of the bearing plate (6).

8. The highway pavement structure for preventing subgrade settlement according to claim 1, characterized in that: the top end of the anti-settling pipe (4) extends upwards to the interior of the anti-settling plate (2).

Images