CN211171997U - Collapsible loess excavation supporting construction - Google Patents
Collapsible loess excavation supporting construction Download PDFInfo
- Publication number
- CN211171997U CN211171997U CN201921580101.5U CN201921580101U CN211171997U CN 211171997 U CN211171997 U CN 211171997U CN 201921580101 U CN201921580101 U CN 201921580101U CN 211171997 U CN211171997 U CN 211171997U
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- Prior art keywords
- side slope
- slope
- collapsible loess
- drainage
- excavation supporting
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- 238000009412 basement excavation Methods 0.000 title claims abstract description 24
- 238000010276 construction Methods 0.000 title claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000004568 cement Substances 0.000 claims abstract description 31
- 239000002689 soil Substances 0.000 claims abstract description 20
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims abstract description 9
- 235000011941 Tilia x europaea Nutrition 0.000 claims abstract description 9
- 239000004571 lime Substances 0.000 claims abstract description 9
- 230000003014 reinforcing effect Effects 0.000 claims description 16
- 239000004746 geotextile Substances 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000005728 strengthening Methods 0.000 claims description 3
- 230000008595 infiltration Effects 0.000 abstract description 12
- 238000001764 infiltration Methods 0.000 abstract description 12
- 239000012141 concentrate Substances 0.000 abstract description 6
- 239000004744 fabric Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
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- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The utility model relates to a collapsible loess foundation ditch excavation supporting construction relates to the underground structure field, including the side slope, the side slope upper berth is provided with fixed stratum reticulare, fixed stratum reticulare periphery is provided with the cement back up coat, the level is provided with the water conservancy diversion nest of tubes in the side slope, side slope foot is provided with water collection drainage component, be provided with the lime soil bed course in the side slope, consequently through set up fixed stratum reticulare and cement back up coat on the foundation ditch side slope, be convenient for strengthen the structural strength of side slope, set up the collapsible loess that the surface can be replaced to the lime soil bed course simultaneously, reduce not hard up, concentrate the guide to water collection drainage component through the level in the side slope and in setting up the infiltration of water conservancy diversion nest of tubes in with the side slope, water collection drainage component will concentrate muddy water and drain away, avoid a large amount of infiltration to gather too much in the side slope, and.
Description
Technical Field
The utility model belongs to the technical field of the excavation supporting and protecting of excavation and relates to a collapsible loess excavation supporting construction.
Background
The collapsible property of the collapsible loess foundation can bring different degrees of harm to the structure, so that the structure is greatly settled, cracked and inclined, and even the safety and the use of the structure are seriously influenced. Therefore, when building structures such as bridges and culverts in loess areas, reliable judgment method and comprehensive knowledge are provided for collapsible loess foundation, and correct engineering measures are taken to prevent or eliminate the collapsible property of the collapsible loess foundation, and the process is called collapsible loess foundation treatment.
Disclosed a chinese patent for patent No. CN205742216U is a combination formula supporting construction for weak geology foundation ditch slope excavation, including the side slope, the interval is provided with a plurality of piles of horizontal and vertical impartial interval on the side slope, every the pile inserts the side slope perpendicularly downwards before every layer of earthwork excavation, the interval is provided with a plurality of soil nails of horizontal and vertical impartial interval on the side slope, every the soil nail inserts the side slope after every layer of earthwork excavation, the pile with soil nail staggered arrangement on the side slope. The construction pile is used for slope protection treatment on the soft soil layer before side slope layer-by-layer excavation, and a supporting structure is guaranteed to exist before each layer of earthwork excavation.
However, the above-described technique has the following drawbacks: when the soil quality of the side slope is soft and moist, or when the rainfall is large in summer, rainwater is easy to accumulate in the foundation pit to corrode the side slope, meanwhile, the upper end of the side slope of the foundation pit is also easy to corrode, and the drainage capability is poor.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a collapsible loess foundation ditch excavation supporting construction, drainage can the reinforce, adapts to collapsible loess soil property.
The above object of the present invention can be achieved by the following technical solutions: the utility model provides a collapsible loess foundation ditch excavation supporting construction, includes the side slope, the side slope upper berth is equipped with fixed stratum reticulare, fixed stratum reticulare periphery is equipped with the cement back up coat, the side slope inner level is equipped with the water conservancy diversion nest of tubes, the side slope toe is equipped with catchment drainage subassembly, be equipped with the lime soil bed course in the side slope.
Implement above-mentioned technical scheme, through set up fixed stratum reticulare and cement back up coat on the foundation ditch slope, be convenient for strengthen the structural strength of side slope, set up the collapsible loess that the surface can be replaced to the lime soil bed course simultaneously, it is not hard up to reduce, through set up in the side slope in the level the infiltration of water conservancy diversion nest of tubes in with the side slope concentrate guide to catchment drainage component in, catchment drainage component concentrates muddy water to be discharged away, avoid a large amount of infiltration to gather too much in the side slope, whole structure is firm, the drainage ability is strong.
The utility model discloses further set up to: the water collecting and draining assembly comprises a flow guide pipe vertically inserted and fixed from the top end of the side slope, seepage holes are distributed in the peripheral wall of the flow guide pipe, and a drainage pipe horizontally inserted and fixed is arranged at the slope toe of the side slope.
Implement above-mentioned technical scheme, set up the honeycomb duct, can be with the precipitation along the infiltration hole infiltration honeycomb duct of the accumulation in making things convenient for the side slope to discharge by the drainage tube, ponding is gathered at the side slope top when reducing raining, provides the drainage performance of structure.
The utility model discloses further set up to: the side slope toe is equipped with the drainage groove, the drainage tube stretches into in the drainage groove, drainage groove one end is equipped with the delivery pump, be equipped with the conveyer pipe on the delivery pump and lead to the drainage shaft.
Implement above-mentioned technical scheme, set up the drainage groove in the side slope, be convenient for receive muddy water from the drainage tube, convenient quick with muddy water centralized collection and buffer memory, open the delivery pump simultaneously and carry muddy water to the drainage shaft along the conveyer pipe, strengthened the drainage ability of device.
The utility model discloses further set up to: be equipped with the desilt apron on the drainage groove, drainage groove one side is equipped with the desilt scraper blade.
Implement above-mentioned technical scheme, set up the desilt apron and can open when drainage inslot gathers silt to remove silt with the desilt scraper blade, avoid silt too much in drainage inslot cohesion.
The utility model discloses further set up to: the side slope is embedded with a plurality of micro-piles, a cement strengthening layer is poured into the soil body attached to the micro-piles, the diameter of each micro-pile is 0.15m, and the length of each micro-pile is 3-4 m.
By implementing the technical scheme, the miniature piles are arranged in the side slope, so that the side slope and the cement reinforcing layer are convenient to connect, and the integral structural strength is strengthened.
The utility model discloses further set up to: and a waterproof geotextile layer is arranged between the fixed net layer and the side slope and is fixed with the side slope through a positioning bolt.
Implement above-mentioned technical scheme, the moisture infiltration that the reducible loess of setting waterproof geotechnological cloth layer contained in the slope fixed network layer of and cement back up coat.
The utility model discloses further set up to: the cement reinforcing layer is of an inverted C-shaped structure, and the drainage tube extends out of the lower end of the cement reinforcing layer.
Implement above-mentioned technical scheme, the cement back up coat of "C" type structure of back-off conveniently covers slope surface completely, covers completely, and the protection is thorough.
The utility model discloses further set up to: and an anti-seepage slope protection is poured at the slope toe of the side slope.
Implement above-mentioned technical scheme, set up prevention of seepage bank protection and be convenient for support the cement back up coat, avoid the ponding infiltration ground of foundation ditch side slope toe simultaneously.
To sum up, the utility model discloses a beneficial technological effect does:
1. the utility model discloses a collapsible loess foundation pit excavation supporting construction, including the side slope, the side slope upper berth is equipped with fixed stratum reticulare, fixed stratum reticulare periphery is equipped with the cement back up coat, the side slope internal level is equipped with the guide pipe group, the side slope toe is equipped with the drainage subassembly that catchments, be equipped with the lime soil bed course in the side slope, consequently through setting up fixed stratum reticulare and cement back up coat on the foundation pit side slope, be convenient for strengthen the structural strength of side slope, set up the collapsible loess that the lime soil bed course can replace the surface simultaneously, reduce to become flexible, concentrate the guiding to the drainage subassembly that catchments in the side slope through setting up the guide pipe group at the side slope internal level, the drainage subassembly that catchments is concentrated with muddy water and is discharged away, avoid a large amount of infiltration to accumulate too much in the side slope, the whole structure is firm, the;
2. the miniature piles are arranged in the side slope, so that the side slope and the cement reinforcing layer are conveniently connected, and the integral structural strength is enhanced;
3. set up the drainage groove in the side slope, be convenient for receive muddy water from the drainage tube, conveniently collect muddy water and buffer memory in a concentrated way fast, open the delivery pump simultaneously and carry muddy water to the drainage shaft along the conveyer pipe, strengthened the drainage ability of device.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic diagram of the explosion structure of the present invention.
Fig. 3 is a schematic cross-sectional view taken along line a-a of fig. 1 according to the present invention.
In the figure: 1. side slope; 2. fixing the net layer; 3. a cement reinforcing layer; 4. a flow guide pipe group; 5. a water collecting and draining assembly; 6. a lime soil cushion layer; 7. a waterproof geotextile layer; 8. positioning bolts; 9. a flow guide pipe; 10. infiltrating holes; 11. a drainage tube; 12. a drainage groove; 13. a delivery pump; 14. a delivery pipe; 15. anti-seepage slope protection; 16. micro-piles; 17. a cement strengthening layer; 18. a mud removing cover plate; 19. a mud-removing scraper.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1 and 2, for the utility model discloses a collapsible loess foundation ditch excavation supporting construction, including side slope 1, side slope 1 uses collapsible loess as the main part, and 1 upper berth of side slope is provided with fixed stratum reticulare 2, and 2 peripheries of fixed stratum reticulare are provided with cement back up coat 3, and 1 interior level of side slope is provided with honeycomb duct 9 group 4, and 1 toe of side slope is provided with the drainage subassembly 5 that catchments, is provided with dirt bed course 6 in the side slope 1, is provided with waterproof geotechnological cloth layer 7 between fixed stratum reticulare 2 and side slope 1, and waterproof geotechnological cloth layer 7 passes through the gim peg 8 and is fixed with side slope 1. Consequently through set up fixed stratum reticulare 2 and cement back up coat 3 on foundation ditch side slope 1, be convenient for strengthen the structural strength of side slope 1, it can replace the collapsible loess on surface to set up the lime soil bed course 6 simultaneously, it is not hard up to reduce, concentrate the guide to the drainage component 5 that catchments through the horizontal honeycomb duct 9 group 4 that sets up in side slope 1 in with the infiltration in side slope 1, the drainage component 5 that catchments is concentrated with muddy water and is walked, it is too much to avoid a large amount of infiltration to gather in side slope 1, set up the fixed stratum reticulare 2 of moisture infiltration and cement back up coat 3 that the reducible loess of waterproof geotechnological cloth layer 7 contained in side slope 1, whole stable in structure, the drainage ability is strong.
Referring to fig. 2 and 3, the water collecting and draining assembly 5 comprises a flow guiding pipe 9 vertically inserted and fixed from the top end of the side slope 1, seepage holes 10 are distributed on the peripheral wall of the flow guiding pipe 9, a drainage pipe 11 horizontally inserted and fixed is arranged at the toe of the side slope 1, a drainage groove 12 is arranged at the toe of the side slope 1, the drainage pipe 11 extends into the drainage groove 12, a delivery pump 13 is arranged at one end of the drainage groove 12, a delivery pipe 14 is arranged on the delivery pump 13 and leads to a drainage well, so that the flow guiding pipe 9 is, the drainage pipe 9 can be penetrated by the accumulated precipitation in the side slope 1 along the seepage holes 10 and is discharged by the drainage pipe 11, the drainage groove 12 is arranged on the side slope 1, the drainage pipe 11 is convenient to receive the muddy water, the muddy water can be conveniently and quickly collected and cached in a centralized way, meanwhile, the conveying pump 13 is started to convey muddy water to the drainage well along the conveying pipe 14, so that the drainage capability of the device is enhanced, and accumulated water on the top of the side slope 1 during raining is reduced.
Referring to fig. 2 and 3, in order to reinforce the whole structure, the cement reinforcing layer 3 is in an inverted C-shaped structure, the drainage tube 11 extends out from the lower end of the cement reinforcing layer 3, the anti-seepage protection slope 15 is poured at the toe of the side slope 1, in addition, a plurality of micro-piles 16 are embedded in the side slope 1, the cement reinforcing layer 17 is poured in the soil body attached to the micro-piles 16, the diameter of each micro-pile 16 is 0.15m, and the length of each micro-pile 16 is 3-4 m.
The miniature piles 16 are arranged in the side slope 1, the side slope 1 and the cement reinforcing layer 3 are convenient to connect, the integral structural strength is strengthened, the reverse C-shaped cement reinforcing layer 3 is convenient to completely cover the slope surface of the side slope 1, the protection is complete, the anti-seepage slope protection 15 is convenient to support the cement reinforcing layer 3, and meanwhile, the seeper of the slope foot of the side slope 1 is prevented from permeating into the ground.
Referring to fig. 2, after strutting and using a period, silt gets into drainage tube 11 and finally gets into drainage groove 12 along honeycomb duct 9, silt is gathered in drainage groove 12, be provided with desilt apron 18 on drainage groove 12, desilt apron 18 adopts transparent plastic panel to make (arrow marks the position in the figure), drainage groove 12 one side is provided with desilt scraper blade 19, it can open when gathering silt in drainage groove 12 to set up desilt apron 18, and clear away silt with desilt scraper blade 19, avoid silt to gather too much in drainage groove 12.
Working process (principle): the utility model discloses a collapsible loess foundation pit excavation supporting structure, which comprises a side slope 1, a fixed net layer 2 is paved on the side slope 1, a cement reinforcing layer 3 is arranged on the periphery of the fixed net layer 2, a diversion pipe 9 group 4 is horizontally arranged in the side slope 1, a water collecting and draining component 5 is arranged at the slope foot of the side slope 1, a soil cushion layer 6 is arranged in the side slope 1, therefore, the structural strength of the side slope 1 is convenient to strengthen by arranging the fixed net layer 2 and the cement reinforcing layer 3 on the foundation pit side slope 1, the collapsible loess on the surface of the soil cushion layer 6 can be replaced at the same time, the looseness is reduced, the water seepage in the side slope 1 is intensively guided to the water collecting and draining component 5 by horizontally arranging the diversion pipe 9 group 4 in the side slope 1, the water collecting and draining component 5 intensively drains muddy water, the accumulation of a large amount of seepage water in the side slope 1 is avoided, a desilting cover plate 18 is opened when silt is accumulated in a drainage groove, the whole structure is stable and has strong drainage capability.
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 (8)
1. The utility model provides a collapsible loess excavation supporting construction, includes side slope (1), its characterized in that: the side slope is characterized in that a fixed net layer (2) is paved on the side slope (1), a cement reinforcing layer (3) is arranged on the periphery of the fixed net layer (2), a guide pipe (9) group (4) is horizontally arranged in the side slope (1), a water collecting and draining assembly (5) is arranged at the slope foot of the side slope (1), and a lime soil cushion layer (6) is arranged in the side slope (1).
2. The collapsible loess foundation pit excavation supporting structure of claim 1, wherein: the water collecting and draining assembly (5) comprises a guide pipe (9) which is vertically inserted and fixed into the top end of the side slope (1), seepage holes (10) are distributed in the peripheral wall of the guide pipe (9), and a drainage pipe (11) which is horizontally inserted and fixed is arranged at the slope foot of the side slope (1).
3. The collapsible loess foundation pit excavation supporting structure of claim 2, wherein: the side slope (1) toe is equipped with drainage groove (12), drainage tube (11) stretch into in drainage groove (12), drainage groove (12) one end is equipped with delivery pump (13), be equipped with conveyer pipe (14) on delivery pump (13) and lead to the drainage shaft.
4. The collapsible loess foundation pit excavation supporting structure of claim 3, wherein: be equipped with desilt apron (18) on drainage groove (12), drainage groove (12) one side is equipped with desilt scraper blade (19).
5. The collapsible loess foundation pit excavation supporting structure of claim 4, wherein: the side slope (1) is embedded with a plurality of micro-piles (16), a cement strengthening layer (17) is poured into soil attached to the micro-piles (16), the diameter of each micro-pile (16) is 0.15m, and the length of each micro-pile (16) is 3-4 m.
6. The collapsible loess foundation pit excavation supporting structure of claim 5, wherein: a waterproof geotextile layer (7) is arranged between the fixed net layer (2) and the side slope (1), and the waterproof geotextile layer (7) is fixed with the side slope (1) through a positioning bolt (8).
7. The collapsible loess foundation pit excavation supporting structure of claim 6, wherein: the cement reinforcing layer (3) is of an inverted C-shaped structure, and the drainage tube (11) extends out of the lower end of the cement reinforcing layer (3).
8. The collapsible loess foundation pit excavation supporting structure of claim 7, wherein: and an anti-seepage protection slope (15) is poured at the slope toe of the side slope (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921580101.5U CN211171997U (en) | 2019-09-21 | 2019-09-21 | Collapsible loess excavation supporting construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921580101.5U CN211171997U (en) | 2019-09-21 | 2019-09-21 | Collapsible loess excavation supporting construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211171997U true CN211171997U (en) | 2020-08-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921580101.5U Expired - Fee Related CN211171997U (en) | 2019-09-21 | 2019-09-21 | Collapsible loess excavation supporting construction |
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|---|---|
| CN (1) | CN211171997U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113373952A (en) * | 2021-06-08 | 2021-09-10 | 辽宁工程技术大学 | A connection structure for collapsible loess side slope support |
-
2019
- 2019-09-21 CN CN201921580101.5U patent/CN211171997U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113373952A (en) * | 2021-06-08 | 2021-09-10 | 辽宁工程技术大学 | A connection structure for collapsible loess side slope support |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200804 |