CN210458823U

CN210458823U - Prevent subsiding bridgehead slope structure

Info

Publication number: CN210458823U
Application number: CN201920893448.9U
Authority: CN
Inventors: 李伟伟; 杨小建; 蒋硕; 程伟; 周文
Original assignee: Zhongye Huacheng (wuhan) Engineering Co Ltd
Current assignee: Zhongye Huacheng (wuhan) Engineering Co Ltd
Priority date: 2019-06-13
Filing date: 2019-06-13
Publication date: 2020-05-05
Anticipated expiration: 2029-06-13

Abstract

The utility model belongs to the technical field of the road traffic engineering construction technique and specifically relates to a prevent subsiding bridgehead slope structure is related to, including the ground, pour into a mould on the ground integrated into one piece's abutment with lay the bridgehead basis foundation road on the abutment terminal surface, the bottom surface on bridgehead basis foundation road includes earth basic unit, set up in the intraformational drainage structures of earth basic unit and lay the pressurization structure that is used for the top layer drainage in earth basic unit up end, drainage structures includes that the multiunit is used for the horizontal drainage body of exhaust moisture and the vertical drainage body of guide moisture entering horizontal drainage body, horizontal drainage body lays two sets of direction drain pipe on the abutment including the level. This prevent subsiding bridgehead slope structure absorbs the moisture that earth basic unit clearance is rich in and deposits to the water storage pipe diapire through vertical drainage body, collects to the direction drain pipe in by linking up the pipe integration again for the moisture that is rich in the earth basic unit is discharged, thereby has reduced the condition emergence that earth basic unit and bridgehead basic unit way formed the fault or subsided.

Description

Prevent subsiding bridgehead slope structure

Technical Field

The utility model belongs to the technical field of the road traffic engineering construction technique and specifically relates to a prevent subsiding bridgehead slope structure is related to.

Background

At present in highway bridge construction engineering, bridgehead department all often is the high embankment of filling, if there is thick soft soil layer in the basis, the basic road will take place to subside under the embankment load effect that covers, then light then arouses the bridgehead to jump the car after completing, then heavy then can arouse the too big settlement of basic road because of the existence of soft soil layer, take place lateral deformation, produce lateral thrust, thereby cause the horizontal displacement and the crooked abutment that lead to the abutment pile foundation to be destroyed, in addition often receive constantly rolling of past vehicle and make the settlement at bridge both ends grow serious day by day.

Chinese patent with patent publication No. CN203456128U discloses a settlement-proof bridgehead slope structure, which comprises a bridge abutment, a bridge dike, a bridge pier, roadbed stones, a reinforced slope and a pavement layer, wherein the reinforced slope is formed by welding and connecting pre-embedded exposed reinforcing steel bar heads on the bridge dike and longitudinal reinforcing steel bars on the reinforced bridge slope into a whole, and is of an integral structure with concrete pouring.

The technical scheme has the following defects: the slope setting and the enhancement slope that fuses are only established through the tip at the bridge dyke with adding, the falling speed of soft soil layer has been alleviated to a certain extent in the setting on slope, thereby because the soft soil layer of strengthening the slope bottom is soft with rivers direct contact rich in a large amount of moisture soil layer in the soft soil layer, the vehicle extrudes soft soil layer and subsides from diffusion soil layer all around when passing through, and the other end overlap joint of bridge dyke is kept away from on the slope on the surface of soft soil layer, strengthen forming the fault between slope and the soft layer after the soil layer descends, strengthen the slope and lose the strong point of support and can break or sink when reacing the critical point, make the driving of passing vehicle bring very big potential safety hazard, consequently above-mentioned scheme remains to be improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a prevent subsiding bridgehead slope structure with drainage function.

The above object of the present invention can be achieved by the following technical solutions:

the utility model provides a prevent subsiding bridgehead slope structure, include the ground, pour into a mould in integrated into one piece's abutment is laid on the ground bridgehead basis way on the abutment terminal surface, the bottom surface of bridgehead basis way include earth basic unit, set up in drainage structures in the earth basic unit with lay in earth basic unit up end is used for the pressurization structure of top layer drainage.

The drainage structure includes a plurality of sets of horizontal drainage bodies for draining moisture and vertical drainage bodies for guiding moisture into the horizontal drainage bodies.

The horizontal drainage body includes that the level is laid two sets of direction drain pipes on the abutment, two drainage port of direction drain pipe all extend the outside of earth basic unit, equidistant a plurality of water storage pipes just of being provided with in the direction drain pipe the upper end of water storage pipe is the opening setting, vertical drainage body closely peg graft in the water storage pipe, adjacent be provided with the linking pipe of mutual intercommunication in week side of water storage pipe.

Horizontal drainage body includes that the level is laid two sets of direction drain pipes on the abutment, two drainage port of direction drain pipe all extend the outside of earth basic unit, equidistant a plurality of water storage pipes just of being provided with in the direction drain pipe the upper end of water storage pipe is the opening setting, the week side of vertical drainage body with the inner wall laminating of water storage pipe is adjacent be provided with the linking pipe of mutual intercommunication in week side of water storage pipe, just linking pipe with the direction drain pipe links to each other and forms the drainage channel who is used for the drainage.

Through adopting above-mentioned technical scheme, two sets of horizontal drainage body of laying about in the earth basic unit and corresponding the vertical drainage body of pegging graft in the retaining pipe, the moisture absorption in the vertical drainage body will earth basic unit clearance is and subsides to the bottom of retaining pipe, and in many linking up the pipe integration of intercommunication on week side enter into the direction drain pipe, the direction drain pipe is arranged moisture to the region of keeping away from the abutment, this region plantable plant absorbs moisture, make the moisture that is rich in the earth basic unit discharge, thereby the consolidation of earth basic unit has been strengthened, the condition that earth basic unit and bridgehead basic road form the fault has been reduced takes place.

The utility model discloses further set up to: the both sides of abutment are the inclined plane setting, the bottom of abutment basis foundation road sets firmly many abutment piles that are used for supporting, the abutment is kept away from one side of abutment pile is the echelonment setting and two sets of the direction drain pipe is laid respectively on the horizontal terminal surface of echelonment.

Through adopting above-mentioned technical scheme, set up the trapezoidal abutment that concrete placement formed, isolated canal running water infiltration earth makes the soil layer soft or erodes the condition emergence that earth leads to soil erosion and water loss, and one side of abutment is the inclined plane another and personally submits the echelonment setting, lays horizontal drainage body on a plurality of level terminal surfaces of echelonment to improve direction drainage pipe's stability.

The utility model discloses further set up to: the guide drain pipe comprises two water guide pipes and a connecting pipe, and the end parts of the two water guide pipes are respectively and vertically connected with the two sides of the connecting pipe.

The utility model discloses further set up to: many the linking pipe with the week side that the water storage pipe is close to its diapire is the cross and distributes, and a plurality of linking pipe and a plurality of the water storage pipe all with the direction drain pipe intercommunication.

By adopting the technical scheme, the water storage pipes which are arranged transversely and longitudinally at equal intervals are communicated with the guide drain pipe through the cross-shaped connecting pipes which are crossed and communicated, and the water is integrated and converged into one end of the water guide pipes, which is far away from the bridge abutment, and the connecting pipes close one ends of the two water guide pipes, which are close to the bridge abutment, to form a loop, so that the flow direction of the water has guidance, and the condition that the water overflows outwards or is guided is reduced.

The utility model discloses further set up to: and the two groups of transverse drainage bodies are arranged along the height difference of the bridge abutment in a staggered manner.

Through adopting above-mentioned technical scheme, two sets of dislocation set make the moisture that is rich in the soil matrix locally absorb more thorough.

The utility model discloses further set up to: the pressurizing structure comprises a sand cushion base layer and an embankment filler, wherein the sand cushion base layer and the embankment filler are laid on the soil base layer.

Through adopting above-mentioned technical scheme, the permeability of sand bed basic unit is less, reduces the surface course moisture infiltration to the bottom earth basic unit in, the embankment packs and makes soil body top layer consolidation to control the subsidence of earth's surface soil and ground linking department, be favorable to improving the security of driving, travelling comfort and the level and smooth pleasing to the eye degree of road.

The utility model discloses further set up to: the vertical drainage body comprises a plurality of drainage devices correspondingly inserted in the water storage pipes, and the extension height of each drainage device is consistent with the step-shaped height of the abutment.

The utility model discloses further set up to: the drainage device is a plastic drainage plate, a bagged sand well or a sand well.

Through adopting above-mentioned technical scheme, the drainage device of a plurality of vertical setting makes the discharge of the middle gap water of earth basic unit convenient to.

To sum up, the utility model discloses a beneficial technological effect does:

1. the utility model discloses a lay two sets of drainage structures from top to bottom in earth basic unit, the moisture absorption and the deposit that vertical drainage body is rich in earth basic unit clearance are to the water storage pipe diapire, collect to the direction drain pipe in by linking up the pipe integration again for the moisture that is rich in the earth basic unit is discharged, thereby has strengthened consolidation, has reduced the condition emergence that earth basic unit and bridgehead basic unit way formed the fault or subsided.

2. The utility model discloses a closed return circuit that forms of port department that two both ends open-ended aqueducts are close to the abutment is closed with the connecting pipe to the flow direction that makes moisture has the guidance quality, and reduces the condition emergence that moisture outwards spills over or the water conservancy diversion.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

fig. 2 mainly shows a schematic perspective view of a lateral drainage body;

fig. 3 is an enlarged schematic view of a portion a in fig. 2.

In the figure, 1, foundation; 2. an abutment; 3. a bridgehead foundation subgrade; 31. a soil base layer; 32. a drainage structure; 33. a pressurizing structure; 4. a sand cushion base layer; 5. filling the embankment; 6. a transverse drainage body; 61. a guide drain pipe; 601. a water conduit; 602. a connecting pipe; 62. a water storage pipe; 63. connecting the pipe; 7. a vertical drainage body; 8. abutment pile.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1, for the anti-settling bridge head slope structure disclosed by the present invention, the structure comprises a foundation 1 and a trapezoidal bridge abutment 2 integrally formed on the foundation 1, wherein one side of the bridge abutment 2 close to the canal is arranged in an inclined plane, and the other side is provided with two sections of step-shaped slopes extending upwards; the terminal surface upper berth of abutment 2 is equipped with the abutment basis way 3 that links up top soil and bridge, the vertical abutment stake 8 that has set firmly support abutment basis way 3 on one side on the 2 inclined planes of abutment, supreme earth basic unit 31 that has set gradually is down followed to the bottom surface of abutment basis way 3, sand cushion basic unit 4 and embankment filler 5, sand cushion basic unit 4's moisture permeability is less, in moisture permeability to bottom earth basic unit 31 with control road surface top layer, embankment filler 5 makes the soil body top layer concretize, thereby control subsides of earth's surface soil and ground 1 linking department to a certain extent.

As shown in fig. 2 and 3, two sets of drainage structures 32 for accelerating drainage and consolidation of a loose soil layer are arranged in the soil base layer 31, and each drainage structure 32 comprises a transverse drainage body 6 and a plurality of vertical drainage bodies 7 vertically inserted into the transverse drainage body 6; the transverse drainage body 6 comprises two groups of guide drainage pipes 61 fixedly arranged at the corner edges of the end surfaces of the stepped bridge abutment 2 and arranged in a staggered manner, each guide drainage pipe 61 comprises two water guide pipes 601 arranged in parallel and a connecting pipe 602 vertically connected between the two water guide pipes 601, and one ends of the two water guide pipes 601 are connected with the connecting pipe 602 end to end and arranged in a U shape; the open end of the conduit 601 is far away from the abutment 2, so that the water integrated in the conduit is transmitted to the area far away from the bridge head, and the surface layer of the area can be planted with plants to improve the greening rate and can absorb the water discharged into soil.

The guide drain pipe 61 is internally provided with a plurality of connecting pipes 63 which are communicated with the water guide pipe 601 in a criss-cross manner, the intersecting parts of the connecting pipes 63 are vertically communicated with one water storage pipe 62, the upper end of the water storage pipe 62 is provided with an opening, and the vertical drainage bodies 7 are placed in the water storage pipe 62, the vertical drainage bodies 7 are plastic drainage plates, bagged sand wells or sand wells and the like, and can absorb and settle water rich in the soil base layer 31 into the water storage pipe 62, and then are integrated and collected into the two water drainage pipes through the connecting pipes 63, so that the concreteness of the soil base layer 31 is enhanced, the settlement phenomenon of the soil base layer 31 and the bridge head foundation road 3 is weakened, the stable road surface effect when vehicles drive to the road section is achieved, and the driving safety of the vehicles is improved.

The utility model discloses a theory of operation and beneficial effect do:

through setting up the vertical a plurality of landfill in earth basic unit 31 with hole water drainage to the water storage pipe 62 of bottom in the earth basic unit 31, discharge to the place far away from abutment 2 by direction drain pipe 61 again, the consolidation of soft base has been accelerated, and ductility and intensity are better, the scope of laying extensively can adapt to the certain deformation of ground and do not influence normal drainage performance, make the moisture that is rich in earth basic unit 31 discharge smoothly, in order to realize earth basic unit 31 and bridgehead basic unit 3's steady, the condition that reduces to subside takes place.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a prevent subsiding bridgehead slope structure, include ground (1), pour in integrated into one piece's abutment (2) and lay in on ground (1) bridgehead basis road (3) on abutment (2) terminal surface, its characterized in that: the bottom surface of the bridge head foundation base path (3) comprises a soil base layer (31), a drainage structure (32) arranged in the soil base layer (31) and a pressurizing structure (33) laid on the upper end surface of the soil base layer (31) and used for surface layer drainage;

the drainage structure (32) comprises a plurality of groups of transverse drainage bodies (6) for draining water and vertical drainage bodies (7) for guiding water into the transverse drainage bodies (6);

horizontal drainage body (6) are laid including the level in two sets of direction drain pipe (61) on abutment (2), two drainage ports of direction drain pipe (61) all extend the outside of earth basic unit (31), equidistant a plurality of water storage pipe (62) just are provided with in direction drain pipe (61) the upper end of water storage pipe (62) is the opening setting, vertical drainage body (7) closely peg graft in water storage pipe (62), adjacent be provided with the linking pipe (63) that communicate each other on the week side of water storage pipe (62).

2. The anti-settling bridgehead slope structure of claim 1, wherein: the both sides of abutment (2) are the inclined plane setting, the bottom of abutment basis foundation way (3) has set firmly many abutment (2) piles that are used for supporting, abutment (2) are kept away from one side of abutment (2) pile is the echelonment setting and two sets of direction drain pipe (61) are laid respectively on the horizontal terminal surface of echelonment.

3. The anti-settling bridgehead slope structure of claim 2, wherein: the guide drain pipe (61) comprises two water guide pipes (601) and a connecting pipe (602), and the end parts of the two water guide pipes (601) are respectively vertically connected with the two sides of the connecting pipe (602).

4. The anti-settling bridgehead slope structure of claim 1, wherein: many linking pipe (63) with water storage pipe (62) are close to and are the distribution of cross on its week side of diapire, and a plurality of linking pipe (63) and a plurality of water storage pipe (62) all with direction drain pipe (61) intercommunication.

5. The anti-settling bridgehead slope structure of claim 1, wherein: the two groups of transverse drainage bodies (6) are arranged along the height difference of the bridge abutment (2) in a staggered mode.

6. The anti-settling bridgehead slope structure of claim 1, wherein: the pressurizing structure (33) comprises a sand cushion base layer (4) laid on the soil base layer (31) and embankment filler (5).

7. The anti-settling bridgehead slope structure of claim 1, wherein: the vertical drainage body (7) comprises drainage devices correspondingly inserted into the water storage pipes (62), and the extension height of the drainage devices is consistent with the step-shaped height of the abutment (2).

8. The anti-settling bridgehead slope structure of claim 7, wherein: the drainage device is a plastic drainage plate, a bagged sand well or a sand well.