CN109457563B - Red sandstone roadbed and construction method thereof - Google Patents
Red sandstone roadbed and construction method thereof Download PDFInfo
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- CN109457563B CN109457563B CN201811337079.1A CN201811337079A CN109457563B CN 109457563 B CN109457563 B CN 109457563B CN 201811337079 A CN201811337079 A CN 201811337079A CN 109457563 B CN109457563 B CN 109457563B
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C3/00—Foundations for pavings
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C3/00—Foundations for pavings
- E01C3/006—Foundations for pavings made of prefabricated single units
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C3/00—Foundations for pavings
- E01C3/04—Foundations produced by soil stabilisation
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- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
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Abstract
The invention relates to the technical field of road construction, in particular to a red sandstone roadbed and a construction method thereof. The red sandstone roadbed comprises a base body and side slope modules positioned on two sides of the base body, wherein each side slope module comprises a bottom layer module and a top layer module, each bottom layer module comprises two bottom layer plates and a bottom layer side plate which is positioned on one side, away from the two bottom layer plates, of the bottom layer module and extends upwards, and bottom layer waterproof cloth arranged in the vertical direction is embedded in each bottom layer side plate; the top layer module comprises top layer plates and top layer side plates which are positioned on the opposite sides of the two top layer plates and extend upwards; the top layer side plate is embedded with a top layer waterproof cloth along the vertical direction. The base body is reinforced by arranging the slope modules on the two sides of the base body, so that the base body is more stable. Set up bottom tarpaulin and top layer tarpaulin respectively in bottom curb plate and the top layer curb plate and make bottom module and top layer module can both play waterproof effect, avoid rainwater infiltration to lead to disintegration of red sandstone to arouse the road surface and subside in getting into the red sandstone.
Description
Technical Field
The invention relates to the technical field of road construction, in particular to a red sandstone roadbed and a construction method thereof.
Background
The red sandstone has duality of rock-soil and rock, the variation range of the uniaxial saturated compressive strength of the red-layer soft rock is 0-52.6 MPa, is generally less than 30MPa, and mainly comprises mudstone, argillaceous siltstone, siltstone mudstone, shale and the like. The red sandstone has low compressive strength, is disintegrated in a mud or slag shape, has poor water stability and strength stability, and is close to or belongs to weak expansive rock; the second type of red sandstone is disintegrated in a block shape, has better water stability and strength stability, and has no obvious expansion; the three types of red sandstones have high strength and are difficult to disintegrate naturally. When the red sandstone is used as a filler, phenomena such as embankment deformation, strength attenuation and the like can be caused, and pavement settlement is caused.
Disclosure of Invention
One of the objects of the present invention is to provide a red sandstone roadbed which has advantages of better roadbed strength and uneasy settlement.
The above object of the present invention is achieved by the following technical solutions: the red sandstone roadbed comprises a base body and side slope modules positioned on two sides of the base body, wherein each side slope module comprises a bottom layer module and a top layer module, each bottom layer module comprises two bottom layer plates and a bottom layer side plate which is positioned on one side, away from the two bottom layer plates, of the bottom layer module and extends upwards, and bottom layer waterproof cloth arranged in the vertical direction is embedded in each bottom layer side plate; the top layer module comprises top layer plates and top layer side plates which are positioned on the opposite sides of the two top layer plates and extend upwards; the top layer side plate is embedded with a top layer waterproof cloth along the vertical direction.
Through adopting above-mentioned technical scheme, consolidate the base member through setting up the side slope module in the both sides of base member for the base member is more firm. Set up bottom tarpaulin and top layer tarpaulin respectively in bottom curb plate and top layer curb plate and make bottom module and top layer module can both play waterproof effect, avoid rainwater infiltration to lead to disintegration of red sandstone to arouse the road surface and subside in getting into the red sandstone. The stability of module side slope is more stable than the soil slope, and adopts the module to cooperate supplementary construction for the construction progress.
The invention is further configured to: the upper end face of the bottom layer side plate is integrally formed with a positioning block, and the lower end face of the top layer side plate is formed with a positioning hole matched with the positioning block.
Through adopting above-mentioned technical scheme, set up locating piece and locating hole cooperation and make top layer module and bottom module can coordinate the location each other, too big deviation can not appear.
The invention is further configured to: the upper end and the lower end of the bottom layer waterproof cloth penetrate out of the upper end face and the lower end face of the bottom layer side plate respectively, and the upper end and the lower end of the top layer waterproof cloth penetrate out of the top layer plate respectively.
Through adopting above-mentioned technical scheme, the upper and lower both ends that set up bottom tarpaulin and top layer tarpaulin are all worn out for can have the part to overlap between the tarpaulin, accomplish seamless joint's waterproof sealing.
The invention is further configured to: the outer side of the lower end of the top layer side plate is formed with a groove, the groove is equal to the top layer side plate in length direction, the lower end of the top layer waterproof cloth is bonded on the bottom surface of the groove, and the upper end of the bottom layer waterproof cloth is bonded on the top layer waterproof cloth.
Through adopting above-mentioned technical scheme, set up the recess and make bottom tarpaulin and top layer tarpaulin overlap the bonding in the position of recess, place gap department and leak for water-proof effects is better.
The invention is further configured to: a distance of 5-7mm is reserved between the bottom waterproof cloth and the outer side face of the bottom side plate; and a distance of 5-7mm is reserved between the top waterproof cloth and the outer side surface of the top side plate.
By adopting the technical scheme, the waterproof cloth is pressed close to the outer side wall as far as possible under the condition that a gap of 5-7mm is left between the waterproof cloth and the outer side wall under the condition of effective protection, so that the top module and the bottom module have thicker wall thickness to prevent water from permeating even if part of the waterproof cloth is damaged and leaks water,
the invention also aims to provide a construction method for realizing the red sandstone roadbed.
The above object of the present invention is achieved by the following technical solutions: the construction method for implementing the red sandstone roadbed comprises the following steps:
step one, substrate pretreatment;
rolling a substrate, and paving a layer of base waterproof cloth on the substrate;
step two, installing a bottom layer module;
filling a soil layer;
step four, installing a top module;
step five, performing disintegration treatment on the red sandstone;
step six, filling the red sandstone layer;
and seventhly, further crushing the red sandstone.
Through adopting above-mentioned technical scheme, roll the basement and make the basement can not subside, lay basic unit tarpaulin on the basement and make groundwater source can not permeate and influence the road bed.
The invention is further configured to: and step two, the bottom layer modules are arranged at a set interval according to the planned positions, two bottom layer plates of the same bottom layer module are spliced according to the planned road length direction, and the lower ends of the bottom layer waterproof cloth turn over outwards and are bonded with the base layer waterproof cloth.
Through adopting above-mentioned technical scheme, set up bottom tarpaulin and basic unit tarpaulin bonding and avoid the gap department between them to leak.
The invention is further configured to: in the fourth step, the top layer module is placed on the bottom layer module and the soil layer, and the positioning blocks are inserted into the positioning blocks in an aligned mode; and after the lower end of the top-layer waterproof cloth is bonded on the bottom surface of the groove, the upper end of the bottom-layer waterproof cloth is covered and bonded on the top-layer waterproof cloth, and then the groove is filled with concrete for sealing.
By adopting the technical scheme, the top layer waterproof cloth and the bottom layer waterproof cloth are matched and adhered together at the positions of the grooves, so that no gap or water leakage exists at the joint of the top layer waterproof cloth and the bottom layer waterproof cloth. Meanwhile, the sealing performance is affected by damage of the adhesion part due to concrete filling and sealing.
The invention is further configured to: filling soil and compacting at the position between the opposite bottom layer side plates; filling the soil layer and compacting again; until the upper surface of the soil layer is flush with the upper surface of the bottom side plate.
Through adopting above-mentioned technical scheme, compaction after filling the soil layer avoids subsiding.
The invention is further configured to: fifthly, transporting the blasted or excavated red sandstone filler to a special disintegration site, and exposing the red sandstone filler in the atmosphere, sunlight and rainwater for 8-15 days without covering to finish disintegration treatment; the red sandstone filler is pushed to be flat by a bulldozer, is rolled by a crawler and is raked loose by loosening teeth.
By adopting the technical scheme, the red sandstone is firstly disintegrated, and the disintegrated red sandstone is not easy to disintegrate again, so that the strength is more reliable and the red sandstone is not easy to settle.
In conclusion, the beneficial technical effects of the invention are as follows:
1. the bottom layer waterproof cloth and the top layer waterproof cloth are respectively arranged in the bottom layer side plate and the top layer side plate to enable the bottom layer module and the top layer module to play a waterproof role, and pavement settlement caused by disintegration of the red sandstone due to the fact that rainwater permeates into the red sandstone is avoided;
2. the groove is formed, so that the bottom waterproof cloth and the top waterproof cloth are overlapped and bonded at the groove, water leakage at the gap is avoided, and the waterproof effect is better.
Drawings
FIG. 1 is a schematic structural view of an embodiment;
fig. 2 is an enlarged view at a in fig. 1.
Reference numerals: 1. a substrate; 2. a side slope module; 3. a bottom layer module; 4. a top layer module; 5. a bottom layer plate; 6. a bottom side panel; 7. bottom waterproof cloth; 8. a soil layer; 9. a top layer plate; 10. a top layer side plate; 11. positioning holes; 12. positioning blocks; 13. a groove; 14. a top layer waterproof cloth; 15. red sandstone layer.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, the red sandstone roadbed comprises a base body 1 and slope modules 2 positioned at two sides of the base body 1, wherein the left side and the right side of the base body 1 are limited by the slope modules 2, so that the overall structure of the base body 1 is more stable.
As shown in fig. 1 and 2, the side slope module 2 comprises a bottom layer module 3 and a top layer module 4 which are formed by pouring concrete, each bottom layer module 3 comprises two bottom layer plates 5 and bottom layer side plates 6 which are positioned on one side, deviated from the two bottom layer plates 5, of the two bottom layer side plates 6, the two bottom layer side plates 6 are inclined towards one side in opposite directions, one side, deviated from the two bottom layer side plates 6, of the two bottom layer side plates is the outer side, and the other side in opposite directions is the inner side. The bottom layer waterproof cloth 7 is embedded in the two bottom layer side plates 6, and the bottom layer waterproof cloth 7 is arranged in the vertical direction and is spaced from the outer side surfaces of the bottom layer side plates 6 by 5-7 mm. The upper end and the lower end of the bottom layer waterproof cloth 7 respectively penetrate out of the upper end face and the lower end face of the bottom layer side plate 6. The upper end surfaces of the bottom layer side plates 6 are all integrally formed with positioning blocks 12. The two bottom layer plates 5 are separated from each other, and a soil layer 8 is filled between the two bottom layer side plates 6.
As shown in fig. 1 and 2, the top module 4 comprises top sheets 9 and top side sheets 10 extending upwards on the side of the two top sheets 9 facing away from each other, the two top side sheets 10 being inclined upwards towards the facing side. The distance between the two top layer plates 9 is equal to the distance between the two bottom layer plates 5, the lower end face of the top layer side plate 10 is provided with a positioning hole 11 matched with the positioning block 12 in a forming mode, the outer side of the lower end of the top layer side plate 10 is provided with a groove 13 in a forming mode, and the groove 13 is equal to the top layer side plate 10 in the length direction. The top layer waterproof cloth 14 is embedded in the two top layer side plates 10, the top layer waterproof cloth 14 is arranged in the vertical direction and is spaced from the outer side surfaces of the top layer side plates 10 by 5-7mm, the upper end and the lower end of the top layer waterproof cloth 14 penetrate out of the top layer plate 9 respectively, and the lower end of the top layer waterproof cloth 14 penetrates out of the groove 13.
As shown in fig. 1 and 2, after the lower end of the top tarpaulin 14 is covered and bonded to the bottom surface of the groove 13, the upper end of the bottom tarpaulin 7 is bonded to the top tarpaulin 14, and then the groove 13 is filled with concrete for sealing. And a red sandstone layer 15 is filled between the two top layer side plates 10.
A construction method of a red sandstone roadbed comprises the following steps:
step one, substrate pretreatment;
and rolling the substrate, and paving a layer of base waterproof cloth on the substrate.
Step two, installing a bottom layer module 3;
the bottom layer modules 3 are installed according to planned positions, two bottom layer plates 5 of the same bottom layer module 3 are separated by a set distance, and different bottom layer modules 3 are spliced according to the planned length direction of a road. The lower end of the bottom layer waterproof cloth 7 turns over outwards and is bonded with the base layer waterproof cloth.
Step three, filling a soil layer 8;
filling soil and compacting at the position between the opposite bottom layer side plates 6; filling the soil layer 8 and compacting again; until the upper surface of the soil layer 8 is level with the upper surface of the bottom side plate 6.
Step four, installing a top module 4;
the top module 4 is placed on the bottom module 3 and the soil layer 8, and the positioning block 12 is inserted into the positioning block 12 in an aligned manner. After the lower end of the top tarpaulin 14 is covered and adhered to the bottom surface of the groove 13, the upper end of the bottom tarpaulin 7 is adhered to the top tarpaulin 14, and then the groove 13 is filled with concrete for sealing.
Step five, performing disintegration treatment on the red sandstone;
and (3) transporting the blasted or excavated red sandstone filler to a special disintegration site, and exposing the special disintegration site in the atmosphere, sunlight and rainwater for 8-15 days without covering to finish the disintegration treatment. During the period, if the air lasts for more than 2 days in sunny and rainy days, the red sandstone is watered to accelerate the disintegration and activity elimination process. The red sandstone filler is pushed to be flat by a bulldozer, is rolled by a crawler and is raked loose by loosening teeth.
Step six, filling the red sandstone layer 15;
and (4) conveying the disintegrated red sandstone to a construction site to be filled into a position between the opposite top side plates 10.
Seventhly, further crushing the red sandstone;
the red sandstone filling material is flattened and crushed by a bulldozer, then larger particles are raked out, and flattening and crushing are carried out again until the maximum particle diameter of the red sandstone is less than 23 cm.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (2)
1. The utility model provides a red sandstone road bed, characterized by: the side slope module comprises a base body (1) and side slope modules (2) located on two sides of the base body (1), wherein each side slope module (2) comprises a bottom layer module (3) and a top layer module (4), each bottom layer module (3) comprises two bottom layer plates (5) and a bottom layer side plate (6) located on one side, away from each other, of the two bottom layer plates (5) and extending upwards, and bottom layer waterproof cloth (7) arranged in the vertical direction is embedded in each bottom layer side plate (6); the top layer module (4) comprises top layer plates (9) and top layer side plates (10) which are positioned on the side, away from the two top layer plates (9), of the top layer and extend upwards; a top layer waterproof cloth (14) along the vertical direction is embedded in the top layer side plate (10);
the upper end surfaces of the bottom layer side plates (6) are integrally formed with positioning blocks (12), and the lower end surfaces of the top layer side plates (10) are formed with positioning holes (11) matched with the positioning blocks (12);
the upper end and the lower end of the bottom layer waterproof cloth (7) respectively penetrate out of the upper end face and the lower end face of the bottom layer side plate (6), and the upper end and the lower end of the top layer waterproof cloth (14) respectively penetrate out of the top layer plate (9);
a groove (13) is formed in the outer side of the lower end of the top layer side plate (10), the length direction of the groove (13) is equal to that of the top layer side plate (10), the lower end of the top layer waterproof cloth (14) is bonded to the bottom surface of the groove (13), and the upper end of the bottom layer waterproof cloth (7) is bonded to the top layer waterproof cloth (14);
a distance of 5-7mm is reserved between the bottom waterproof cloth (7) and the outer side surface of the bottom side plate (6); and a distance of 5-7mm is reserved between the top layer waterproof cloth (14) and the outer side surface of the top layer side plate (10).
2. A construction method for implementing the red sandstone roadbed of claim 1, which is characterized by comprising the following steps:
step one, substrate pretreatment;
rolling a substrate, and paving a layer of base waterproof cloth on the substrate;
step two, installing a bottom layer module (3);
step three, filling a soil layer (8);
step four, installing a top layer module (4);
step five, performing disintegration treatment on the red sandstone;
step six, filling the red sandstone layer (15);
seventhly, further crushing the red sandstone;
step two, the bottom layer modules (3) are arranged at preset intervals according to the planned positions, two bottom layer plates (5) of the same bottom layer module (3) are spliced according to the planned road length direction between different bottom layer modules (3), and the lower ends of the bottom layer waterproof cloth (7) turn over outwards and are bonded with the base layer waterproof cloth;
in the fourth step, the top layer module (4) is placed on the bottom layer module (3) and the soil layer (8), and the positioning blocks (12) are inserted into the positioning blocks (12) in an aligned mode; after the lower end of the top-layer waterproof cloth (14) is bonded to the bottom surface of the groove (13), the upper end of the bottom-layer waterproof cloth (7) is covered and bonded on the top-layer waterproof cloth (14), and then the groove (13) is filled with concrete for sealing;
in the third step, filling soil and compacting at the position between the opposite bottom layer side plates (6); filling the soil layer (8) and compacting again; until the upper surface of the soil layer (8) is level with the upper surface of the bottom side plate (6);
fifthly, transporting the blasted or excavated red sandstone filler to a special disintegration site, and exposing the red sandstone filler in the atmosphere, sunlight and rainwater for 8-15 days without covering to finish disintegration treatment; the red sandstone filler is pushed to be flat by a bulldozer, is rolled by a crawler and is raked loose by loosening teeth.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811337079.1A CN109457563B (en) | 2018-11-12 | 2018-11-12 | Red sandstone roadbed and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811337079.1A CN109457563B (en) | 2018-11-12 | 2018-11-12 | Red sandstone roadbed and construction method thereof |
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| CN109457563A CN109457563A (en) | 2019-03-12 |
| CN109457563B true CN109457563B (en) | 2021-01-05 |
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| CN111663393A (en) * | 2020-07-23 | 2020-09-15 | 贵州大学 | High-fill anti-settlement roadbed structure and construction method |
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| KR20090073805A (en) * | 2007-12-31 | 2009-07-03 | 계성종합건설(주) | Concrete retaining wall structure |
| CN206319642U (en) * | 2016-12-24 | 2017-07-11 | 北京佳诚利锋设备制造有限公司 | Plus the binding structure of build-up layers wall |
| CN107100177A (en) * | 2017-02-28 | 2017-08-29 | 衡阳市金泓建筑装饰设计有限公司 | A kind of combined member and reinforcement means for reinforcing highway slope protection |
| CN107747262A (en) * | 2017-09-28 | 2018-03-02 | 中国十七冶集团有限公司 | A kind of area of heavy rainfull is red sandstone roadbed to fill structure and construction method |
| CN207277316U (en) * | 2017-09-05 | 2018-04-27 | 岳庆玲 | A kind of corrosion-resistant waterproof Slope protection plate that can quickly splice |
| CN108589655A (en) * | 2018-07-09 | 2018-09-28 | 平湖市飞天人图文设计有限公司 | A kind of slope protection water conservancy net |
-
2018
- 2018-11-12 CN CN201811337079.1A patent/CN109457563B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090073805A (en) * | 2007-12-31 | 2009-07-03 | 계성종합건설(주) | Concrete retaining wall structure |
| CN206319642U (en) * | 2016-12-24 | 2017-07-11 | 北京佳诚利锋设备制造有限公司 | Plus the binding structure of build-up layers wall |
| CN107100177A (en) * | 2017-02-28 | 2017-08-29 | 衡阳市金泓建筑装饰设计有限公司 | A kind of combined member and reinforcement means for reinforcing highway slope protection |
| CN207277316U (en) * | 2017-09-05 | 2018-04-27 | 岳庆玲 | A kind of corrosion-resistant waterproof Slope protection plate that can quickly splice |
| CN107747262A (en) * | 2017-09-28 | 2018-03-02 | 中国十七冶集团有限公司 | A kind of area of heavy rainfull is red sandstone roadbed to fill structure and construction method |
| CN108589655A (en) * | 2018-07-09 | 2018-09-28 | 平湖市飞天人图文设计有限公司 | A kind of slope protection water conservancy net |
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