CN212452703U - Flexible surface layer supporting structure system for loess area - Google Patents
Flexible surface layer supporting structure system for loess area Download PDFInfo
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- CN212452703U CN212452703U CN202022075203.0U CN202022075203U CN212452703U CN 212452703 U CN212452703 U CN 212452703U CN 202022075203 U CN202022075203 U CN 202022075203U CN 212452703 U CN212452703 U CN 212452703U
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Abstract
The utility model provides a flexible surface course supporting construction system for loess area, include and found first loess mixed inoxidizing coating on loess slope, flexible barrier layer sets up the mixed tie coat that is used for of flexible barrier layer bonds, sets up fibre net on the mixed tie coat, the anchor board is provided with a plurality ofly, and the align to grid is in on the fibre net, be used for right fibre net with the synthesis of flexible barrier layer is fixed fibre net's upper end is provided with the lattice roof beam. And the construction method of the system is disclosed, in the utility model, the fiber grid has certain flexibility, so that the protective surface forms a flexible base surface, and can be arranged in a veneering way along with the form of the side slope.
Description
Technical Field
The utility model belongs to the technical field of the side slope protection technique and specifically relates to a flexible surface course supporting construction system for loess area is protected to loess area side slope technique.
Background
China's loess gully is widely distributed, the existing slope protection mainly comprises the step of carrying out lattice beam protection on the slope surface, and the rhombic, rectangular or herringbone lattice beams are arranged on the slope surface, so that the slope surface is fixed, and the water and soil loss of the slope surface is prevented. The technical means adopts a large amount of reinforced concrete to form concrete protection, and adopts an anti-slide pile or retaining wall form to assist protection; therefore, the slope surface of the slope section is generally treated by adopting a reinforcing mesh and sprayed concrete; the landslide main sliding section mortar stone retaining wall, the anti-slide pile and the anti-slide anchor rod (anchor cable) are high in cost, and particularly, traffic is inconvenient in mountainous areas, so that great inconvenience is often brought to construction.
The above-mentioned technical means are basically following the method for treating the expansive soil slope. Loess and swelling soil have great difference, and the loess matrix does not exist outside expansive force, and its tensile force expression is self-sustaining power on the slope, and the viscidity of loess is greater than the viscidity of swelling soil, and self-sustaining power can reduce when meeting water, consequently can form the gliding. The loess subgrade can be used for tamping the mixed mortar formed by loess and cement by utilizing the viscosity of the loess, but the method of tamping the surface is completely unfeasible in the slope treatment.
Therefore, the utility model discloses mainly according to loess self-sustaining power, establish a new method that loess side slope was administered.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a flexible surface course supporting construction system and construction method for loess area to solve the problem of proposing among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a flexible surface course supporting construction system for loess area includes
Constructing a first loess mixed protective layer on the loess slope, the first loess mixed protective layer being for improving the viscosity of loess and the self-sustaining force of the loess slope;
a flexible impermeable layer laid on the first loess mixed protective layer,
a hybrid tie layer for bonding disposed on the flexible barrier layer,
a fiber mesh disposed on the hybrid bonding layer, the fiber mesh for enhancing the supporting strength of the flexible barrier layer,
a plurality of anchoring plates which are uniformly arranged on the fiber grids and are used for comprehensively fixing the fiber grids and the flexible impermeable layers,
a second loess mixed protective layer is arranged at the upper end of the fiber grid,
a third loess mixed protective layer is arranged on the second loess mixed protective layer,
and arranging lattice beams on the third loess mixed protective layer.
Further, the flexible impermeable layer is made of impermeable fireproof geotextile.
Further, the fiber mesh is formed by a plurality of splicing-shaped fiber mesh units woven by one of glass fibers and carbon fibers, and the anchoring plates are arranged at the superposition positions of the fiber mesh units.
Further, the anchoring plate comprises a lower positioning component and an upper fixing component which have the same upper and lower specifications,
the lower positioning component comprises a lower positioning plate and a lower damping rubber layer arranged on the lower positioning plate,
the upper fixing component comprises an upper fixing plate and an upper damping rubber layer arranged below the upper fixing plate,
the fiber mesh is fixed between the lower damping rubber layer and the upper damping rubber layer,
soil nails penetrate through the inclined holes and penetrate through the mixed bonding layer, the flexible impermeable layer and the first loess mixed protective layer to be fixed in the loess slope.
Further, be provided with the anchor eye in the middle of the anchor board, at the inclined hole of anchor eye circumference, the inclined hole leans out 30 ~ 45 based on the aperture axis of anchor eye.
Further, be provided with the stock in the anchor eye, the one end of stock is passed in proper order and is mixed tie coat, flexible barrier layer and the mixed inoxidizing coating of first loess and fix in the loess side slope, the other end of stock passes the anchor board and by fixing the locking of ground tackle above the anchor board.
Further, the lattice beam is a side slope support beam formed by loess cement slurry.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses in, loess grout utilizes loess and clear water, adds the nearly colloidal substance that a proper amount cement stirring formed, has the nature similar with the concrete, can pour into various shapes as required, and the solid intensity that forms after solidifying is big, can satisfy domatic protection, prevent the effect that erodees.
The utility model discloses in, the mixed inoxidizing coating of first loess, the viscidity and the self-sustaining power of loess are improved to the aim at that adds cement for the tension on surface reduces, makes self-sustaining power can have certain change, for example by when reducing 40KN by 80KN, and self-sustaining power can be natural release, can not lead to the fact the influence to the top layer.
The utility model discloses in, the mixed inoxidizing coating of second loess, the viscidity and the self-sustaining of loess are improved to the aim at that adds cement, and in this one deck, the effect of viscidity is bigger for when the top layer release self-sustaining, the second floor can play the effect of supporting filling.
The utility model discloses in, the mixed inoxidizing coating of third loess, the viscidity and the self-sustaining power of loess are improved to the aim at that adds cement, and the self-sustaining power can not reduce after meeting water.
The utility model discloses in, utilize geotechnological cloth + fibre net to replace geotechnological cloth + reinforced concrete's protective structure, economy, simple manufacture, raw materials extensively can draw materials on the spot.
The utility model discloses in, fibre net has certain flexibility, can be so that the protection face forms a flexible base face, can carry out the wainscot along with the form of side slope and lay, does not need strict arrange the broken face in order, has practiced thrift the time of process.
Drawings
Figure 1 is a block diagram of a medium flexible face support structure system of the present invention;
FIG. 2 is a layout view of a lattice beam of the present invention;
FIG. 3 is a structural diagram of the fiber network of the present invention;
FIG. 4 is a structural view of the anchor plate of the present invention;
FIG. 5 is a fixed structure diagram of the anchor plate of the present invention;
fig. 6 is a layout view of the middle anchor plate of the present invention.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
Referring to fig. 1 to 6, the present invention provides a flexible surface course supporting structure system for a loess region, including constructing a first loess mixed protective layer 2 on a loess slope 1, the first loess mixed protective layer 2 for improving the viscosity of loess and the self-sustaining force of the loess slope;
a flexible impermeable layer 3, wherein the flexible impermeable layer 3 is laid on the first loess mixed protective layer 2, the flexible impermeable layer 3 adopts fireproof and waterproof geotextile,
the setting is in the mixed tie coat 4 that is used for the bonding of flexible barrier layer 3, mixed tie coat 4 is used for fixing the fibre net at flexible barrier layer 3, when laying mixed tie coat 4, is 1 with cement, loess and water with the mass ratio: 4: 2 forming a loess slurry mixed solution, spraying the loess slurry mixed solution on the surface of the flexible impermeable layer 3, firstly fixing the flexible impermeable layer 3, secondly fixing the fiber mesh by the loess slurry mixed solution,
set up and be in fibre net 5 on the mixed tie coat 4, fibre net 5 is used for the reinforcing flexible barrier layer's support intensity the utility model discloses in, fibre net 5's net density is 300 ~ 600/m2. A plurality of anchoring plates 9 are arranged and evenly arranged on the fiber grids 5 and are used for comprehensively fixing the fiber grids 5 and the flexible impermeable layers 3,
a second loess mixed protective layer 6 is arranged at the upper end of the fiber grid 5,
a third loess mixed protective layer 7 is arranged on the second loess mixed protective layer 6,
a lattice beam 8 is provided on the third loess mixed protective layer 7.
In the above, the fiber mesh 5 is formed by a plurality of spliced fiber mesh units woven by one of glass fiber and carbon fiber, and the anchor plate 5 is disposed at the overlapping portion of the fiber mesh units.
In the above, the anchoring plate 9 comprises a lower positioning component and an upper fixing component with the same upper and lower specifications, the lower positioning component comprises a lower positioning plate 98 and a lower damping rubber layer 97 arranged on the lower positioning plate, the lower damping rubber layer 97 is provided with lower damping teeth 96,
the upper fixing component comprises an upper fixing plate 93, an upper damping rubber layer 94 arranged below the upper fixing plate 93, upper damping teeth 95 arranged below the upper damping rubber layer 94,
the fiber mesh 5 is fixed between the lower damping rubber layer and the upper damping rubber layer and is engaged and fixed by the lower damping teeth 96 and the upper damping teeth 95.
In the above, the anchor plate 9 is provided with an anchor hole 900 in the middle, and the inclined hole 901 is formed in the circumferential direction of the anchor hole 900, and the inclined hole 901 is inclined outward by 30 to 45 degrees based on the aperture axis of the anchor hole 900. The soil nails 92 penetrate through the inclined holes 901 and penetrate through the mixed bonding layer 4, the flexible impermeable layer 3 and the first loess mixed protection layer 2 to be fixed in the loess slope 1.
Be provided with stock 91 in the anchor eye 900, the one end of stock 91 passes mixed tie coat 4, flexible barrier layer 3 and the mixed inoxidizing coating 2 of first loess in proper order and fixes in loess side slope 1, the other end of stock 91 passes anchor board 9 and by fixing the locking of anchorage device 90 above anchor board.
In the above, the lattice beam 8 is a slope support beam formed by loess cement slurry.
The utility model also provides a construction method that is used for the flexible surface course supporting construction system in loess area, including following step:
the method comprises the following steps of (1) arranging the loess slope: leveling the loess side slope to enable the loess side slope to be in an inclined plane shape approximately along the surface of the side slope, then measuring and planning the specification of the used fiber mesh;
step (2), constructing a first loess mixed protective layer: spraying a loess cement slurry mixture I on the arranged loess slope to construct a first loess mixed protective layer; the first cement slurry mixture is prepared from cement, loess and water in a mass ratio of 1: 6: 3 forming loess slurry mixed liquor, and paving the mixed slurry on the surface of the loess slope from top to bottom; the utility model discloses in, the viscidity and the self-sustaining power of loess are improved to the aim at of adding cement in the mixed inoxidizing coating of first loess for the tensile force on surface reduces, makes self-sustaining power can have certain change, for example by when reducing 40KN by 80KN, and self-sustaining power can be natural release, can not lead to the fact the influence to the top layer.
Step (3), constructing a soil nail hole and an anchor hole: drilling on the first loess mixed protective layer according to the specification of the used fiber mesh to form soil nail holes and anchor holes which are transversely arranged along the first loess mixed protective layer and used for fixing an anchor plate, inserting soil nails into the soil nail holes, and injecting a loess cement slurry mixture II into the soil nail holes; fixedly inserting an anchor rod into the anchor hole, and injecting a loess cement slurry mixture II into the anchor hole; the utility model discloses in, loess cement slurry mixture two is cement, loess and water and is 3 with the mass ratio: 6: 2.5 forming loess slurry mixture. In the loess cement paste mixture II, cement is added to form a structure similar to concrete, so that the fixing of the soil nails and the anchor rods is facilitated. When drilling, the soil nail hole and the anchor hole can be straight holes along a certain axis or spiral holes along a certain axis.
Step (4), paving a flexible impermeable layer: laying waterproof and fireproof geotextile on the first loess mixed protective layer and enabling soil nails to penetrate through the waterproof and fireproof geotextile;
step (5), laying fiber grids: spraying a layer of uniform loess cement slurry mixture III on the waterproof and fireproof geotextile, leveling to form a mixed bonding layer, bonding a lower positioning plate and a lower damping rubber layer to form a lower positioning assembly, penetrating out and fixing the lower positioning assembly along the soil nail and the anchor rod, then laying fiber net units on the mixed bonding layer, overlapping the connection parts of the two fiber net units, wherein the overlapping position is positioned above the lower positioning assembly, penetrating out and fixing the upper fixing assembly above the lower positioning assembly through the soil nail and the anchor rod, locking the anchor rod through an anchorage device, and bending and fixing the soil nail above the upper fixing assembly; the loess cement slurry mixture III is formed by mixing cement, loess and water in a mass ratio of 1: 4: 1 forming loess slurry mixed liquor, and laying the mixed slurry on the surface of the flexible anti-seepage layer from top to bottom;
step (6), constructing a second loess mixed protective layer: spraying loess cement paste mixture IV on the fiber mesh to construct a second loess mixed protective layer; the loess cement slurry mixture C is cement, loess and water in a mass ratio of 1: 3: 1 forming loess slurry mixed liquor, and paving the mixed slurry on the surface of a fiber grid from top to bottom; the purpose of adding cement in the second loess mixed protective layer is to improve the viscosity and self-sustaining power of the loess, and in the layer, the effect of the viscosity is larger, so that when the surface layer releases the self-sustaining power, the second layer can play a role in supporting and filling.
Step (7), constructing a third loess mixed protective layer: spraying loess cement slurry mixture on the fiber mesh for constructing a third loess mixed protective layer; and the loess cement slurry mixture V is prepared from cement, loess and water in a mass ratio of 1: 7: 3 forming loess slurry mixed liquid, and laying the mixed slurry on the surface of the third loess mixed protective layer from top to bottom. The third loess mixed protective layer is added with cement to improve the viscosity and self-sustaining ability of the loess, so that the self-sustaining ability is not reduced after the water is met, and the basic form of the loess is maintained.
Step (8), laying lattice beams: vertically lay lattice beam steel reinforcement cage on the mixed inoxidizing coating of third loess lattice beam steel reinforcement cage is last formwork and pours the two formation lattice roof beams of loess grout mixture.
The utility model discloses in, loess grout utilizes loess and clear water, adds the nearly colloidal substance that a proper amount cement stirring formed, has the nature similar with the concrete, can pour into various shapes as required, and the solid intensity that forms after solidifying is big, can satisfy domatic protection, prevent the effect that erodees.
The utility model discloses in, fibre net adopts carbon glass fiber or glass to weave and forms, has certain flexibility, can be so that the protection face forms a flexible base face, can carry out the wainscot along with the form of side slope and lay, does not need strict arrange the broken face in order, has practiced thrift the time of process.
The principles and embodiments of the present invention have been explained herein using specific examples, which are presented only to assist in understanding the methods and their core concepts. The foregoing is only a preferred embodiment of the present invention, and it should be noted that there are objectively infinite specific structures due to the limited character expressions, and it will be apparent to those skilled in the art that a plurality of modifications, decorations or changes can be made without departing from the principle of the present invention, and the above technical features can be combined in a proper manner; the application of these modifications, variations or combinations, or the application of the concepts and solutions of the present invention in other contexts without modification, is not intended to be considered as a limitation of the present invention.
Claims (7)
1. A flexible surface course supporting construction system for loess area, which is characterized by comprising
Constructing a first loess mixed protective layer on the loess slope,
a flexible impermeable layer laid on the first loess mixed protective layer,
a hybrid tie layer for bonding disposed on the flexible barrier layer,
a fiber mesh disposed on the hybrid bond layer,
a plurality of anchoring plates which are uniformly arranged on the fiber grids and are used for comprehensively fixing the fiber grids and the flexible impermeable layers,
and a lattice beam is arranged at the upper end of the fiber lattice.
2. The flexible face layer supporting structure system for loess areas according to claim 1, wherein the flexible impermeable layer is an impermeable fireproof geotextile.
3. The flexible face support structure system for loess areas according to claim 1, wherein the fiber nets are formed of a plurality of spliced fiber net units woven of one of glass fiber and carbon fiber, and the anchoring plates are provided at the overlapping portions of the fiber net units.
4. The flexible face supporting construction system for loess areas according to claim 1, wherein the anchoring plates comprise lower positioning members and upper fixing members having the same upper and lower specifications,
the lower positioning component comprises a lower positioning plate and a lower damping rubber layer arranged on the lower positioning plate,
the upper fixing component comprises an upper fixing plate and an upper damping rubber layer arranged below the upper fixing plate,
the fiber mesh is fixed between the lower damping rubber layer and the upper damping rubber layer.
5. The flexible surface course support structure system for loess areas according to claim 4, wherein an anchor hole is provided in the middle of the anchor plate, and an inclined hole is formed in the circumferential direction of the anchor hole and is inclined outwardly by 30-45 degrees based on the bore diameter axis of the anchor hole,
soil nails penetrate through the inclined holes and penetrate through the mixed bonding layer, the flexible impermeable layer and the first loess mixed protective layer to be fixed in the loess slope.
6. The flexible surface course support structure system for loess areas according to claim 5, wherein an anchor rod is provided in the anchor hole, one end of the anchor rod passes through the mixed bonding layer, the flexible impermeable layer and the first loess mixed protective layer in sequence and is fixed in the loess slope, and the other end of the anchor rod passes through the anchoring plate and is locked by an anchorage device fixed above the anchoring plate.
7. The flexible face support structure system for loess areas according to claim 1, wherein the lattice beams are slope support beams made of loess cement paste.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022075203.0U CN212452703U (en) | 2020-09-21 | 2020-09-21 | Flexible surface layer supporting structure system for loess area |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022075203.0U CN212452703U (en) | 2020-09-21 | 2020-09-21 | Flexible surface layer supporting structure system for loess area |
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| CN212452703U true CN212452703U (en) | 2021-02-02 |
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| CN202022075203.0U Expired - Fee Related CN212452703U (en) | 2020-09-21 | 2020-09-21 | Flexible surface layer supporting structure system for loess area |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113152319A (en) * | 2021-05-11 | 2021-07-23 | 安徽省交通规划设计研究总院股份有限公司 | Assembly type flexible drainage structure and construction method thereof |
-
2020
- 2020-09-21 CN CN202022075203.0U patent/CN212452703U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113152319A (en) * | 2021-05-11 | 2021-07-23 | 安徽省交通规划设计研究总院股份有限公司 | Assembly type flexible drainage structure and construction method thereof |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210202 Termination date: 20210921 |
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| CF01 | Termination of patent right due to non-payment of annual fee |