CN211498867U - A envelope for underground works excavation foundation ditch engineering on a large scale - Google Patents
A envelope for underground works excavation foundation ditch engineering on a large scale Download PDFInfo
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- CN211498867U CN211498867U CN201922044139.7U CN201922044139U CN211498867U CN 211498867 U CN211498867 U CN 211498867U CN 201922044139 U CN201922044139 U CN 201922044139U CN 211498867 U CN211498867 U CN 211498867U
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- fender pile
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Abstract
The utility model relates to an envelope for underground works excavation foundation ditch engineering on a large scale belongs to foundation ditch engineering protection technical field, including the fender pile, the pipe box has been seted up to fender pile lateral wall, is provided with the drain pipe in the pipe box, and spaced apart being equipped with along drain pipe length direction crosses the water hole, and the drain pipe extends to and communicates with external suction pump, is provided with inflation stagnant water glue between pipe box and the drain pipe, is provided with the mounting that is used for fixed drain pipe on the drain pipe, crosses water hole one side and is provided with the filtration piece that is used for filtering groundwater. The drain pipe passes through the mounting to be fixed at the pipe box, and when establishing fender pile when having groundwater to infiltrate, groundwater filters through the filtration piece in water hole one side, prevents that impurity from blockking up the drain pipe, takes water away through external water pump, reduces to make soil property loose because of the existence of groundwater, fender pile's aversion phenomenon when reducing the pile to improve fender pile's bearing capacity.
Description
Technical Field
The utility model belongs to the technical field of foundation ditch engineering protection technique and specifically relates to a retaining structure for underground works excavation foundation ditch engineering on a large scale is related to.
Background
Along with the development of social economy in China, the urbanization process is accelerated, and the development of urban underground space is faster and faster, especially urban subway engineering, underground parking lots, underground shopping malls and the like. The foundation pit engineering is an engineering of excavating an underground space from the ground downwards and arranging a vertical soil retaining enclosure structure and a supporting structure on the periphery. The enclosure structure is generally a plate (pile) wall structure with a certain insertion depth under the foundation of the excavation surface, mainly bears the soil pressure and water pressure generated by excavation unloading of the foundation pit, transmits the pressure to the support, and is a retaining wall structure for stabilizing the foundation pit.
In the prior art, patent application with publication number CN203429640U discloses an enclosure structure for large-scale underground engineering excavation foundation pit engineering, anti-side pier bodies are arranged at intervals along the periphery of the foundation pit enclosure, the large-scale foundation pit periphery is divided into a plurality of small areas, anti-side wall guard piles are arranged between the anti-side pier bodies, and a capping beam at the top of the enclosure pile is used for connecting each anti-side pier body, so as to form a complete anti-side pier body combined enclosure structure.
A large amount of underground water exists in foundation pit engineering, the underground water level of a surrounding foundation and the stress field can be changed when the side wall resisting guard pile is arranged in a driving mode, the underground water cannot be discharged when the side wall resisting guard pile is arranged in the driving mode, the surrounding soil is loose, the side wall resisting guard pile is easy to move during driving, stress points of the side wall resisting guard pile are caused to move, and therefore the bearing capacity of the side wall resisting guard pile is affected.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a retaining structure for underground works excavation foundation ditch engineering on a large scale has the advantage of the bearing capacity of the drainage of being convenient for in order to improve fender pile.
The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:
the utility model provides an envelope for underground works excavation foundation ditch engineering on a large scale, includes the fender pile, and the chase has been seted up to fender pile lateral wall, is provided with the drain pipe in the chase, along spaced being equipped with the water hole of crossing of drain pipe length direction, the drain pipe extends to and external suction pump intercommunication, is provided with the stagnant water of inflation and glues between chase and the drain pipe, is provided with the mounting that is used for fixed drain pipe on the drain pipe, crosses water hole one side and is provided with the filter piece that is used for filtering groundwater.
Through adopting above-mentioned technical scheme, the drain pipe passes through the mounting to be fixed at the tube seat, and when establishing fender pile when beating and have groundwater to infiltrate, groundwater filters through the filtration piece of water hole one side, prevents that impurity from blockking up the drain pipe, takes water away through external suction pump, and the reduction makes soil property loose because of the existence of groundwater, and fender pile's aversion phenomenon when reducing the pile to improve fender pile's bearing capacity. The expansion water stop glue is a water expansion single-liquid type sealant, the volume of the sealant is expanded after the sealant is soaked in water, the sealant has good adhesion to concrete, can fill gaps to play a good water stop effect, prevents water from permeating from the contact surface of the drain pipe and the fender post, and plays a role in fencing the fender post, thereby ensuring the bearing capacity of the fender post.
The utility model discloses further set up to: the mounting is including setting up the dead lever in the drain pipe bottom, be provided with three hornblocks in right angle on the dead lever, three hornblocks in right angle's hypotenuse is kept away from dead lever direction tilt up setting by dead lever bottom orientation, the draw-in groove has been seted up to the pipe chase diapire, draw-in groove lateral wall sliding connection has the joint piece, the joint piece slides along perpendicular to draw-in groove the central axis direction, the draw-in groove lateral wall is offered and is used for supplying the gliding spout of joint piece, the tip of joint piece outside the spout is provided with the inclined plane, the inclined plane orientation is close to draw-in groove diapire downward sloping setting, be provided with between joint piece and the spout diapire and be used.
Through adopting above-mentioned technical scheme, when needs are fixed the drain pipe to the chase in, insert the drain pipe down along the chase, when the hypotenuse of three hornblocks in right angle and the inclined plane contact of joint piece, continue to promote the drain pipe downwards, joint piece removes towards the spout under the effect of external force this moment, when in the whole moving card inslot of three hornblocks in right angle, the joint piece removes towards the spout is outer under the effect of elastic component, the butt is in three hornblocks in right angle top, the joint piece supports the dead lever, prevent drain pipe rebound. The installation of whole drain pipe only needs to promote the drain pipe always, until dead lever and draw-in groove butt, the elastic component orders about the joint piece automatically and blocks dead lever and three hornblocks in right angle to fix the drain pipe in the chase, the installation is simple swift, saves operating time, improves work efficiency.
The utility model discloses further set up to: the elastic component is including setting up the spring between joint piece and spout diapire, and the one end of spring is connected on the joint piece, and the other end is connected on the spout diapire.
Through adopting above-mentioned technical scheme, the joint piece receives the elasticity of spring to remove outward towards the spout to the joint piece is automatic blocks dead lever and right angle triangle piece, and is simple and convenient.
The utility model discloses further set up to: prestressed tendons are uniformly arranged in the fender pile.
Through adopting above-mentioned technical scheme, adopt prestressing tendons to wholly exert prestressing force to the fender pile, strengthen the effect of shearing of fender pile to improve fender pile's bearing capacity.
The utility model discloses further set up to: the filtering piece comprises geotextile wrapped on the water passing hole, cobblestones are laid on one side of the drain pipe, and the cobblestones are in contact with the geotextile.
Through adopting above-mentioned technical scheme, the cobblestone can filter the large granule impurity of groundwater, and geotechnological cloth has good water permeability, also can filter the tiny particle impurity, prevents that impurity from blockking up the drain pipe, and geotechnological cloth powerful height can both keep abundant powerful under the wet state futilely, and corrosion resistance is good, can be corrosion-resistant for a long time in the earth and the aquatic of the pH valve of difference, long service life, geotechnological cloth material is light and construction convenience.
The utility model discloses further set up to: and a soil retaining plate is arranged between every two adjacent fender piles.
By adopting the technical scheme, the retaining plates are adjacent to connect the retaining piles to form an integral enclosure structure, and the integral enclosure structure is suitable for large-scale underground foundation pit enclosure.
The utility model discloses further set up to: an expansion joint is reserved on the contact surface of the fender apron and the fender pile, and sealing grease is filled in the expansion joint.
Through adopting above-mentioned technical scheme, the expansion joint can avoid because the difference in temperature and concrete shrink make keep off and produce deformation and crack between breast board and the fender post, and sealed fat has splendid waterproof leakproofness, can prevent that water from passing through seam crossing infiltration to guarantee the bearing capacity of fender post.
To sum up, the utility model discloses a beneficial technological effect does:
the drain pipe passes through the mounting to be fixed at the pipe box, and when establishing fender pile when having groundwater to infiltrate, groundwater filters through the filtration piece in water hole one side, prevents that impurity from blockking up the drain pipe, takes water away through external water pump, reduces to make soil property loose because of the existence of groundwater, fender pile's aversion phenomenon when reducing the pile to improve fender pile's bearing capacity.
The prestressed tendons are adopted to apply prestress to the whole fender pile, so that the shearing resistance of the fender pile is enhanced, and the bearing capacity of the fender pile is improved.
The expansion joint can avoid producing deformation and crack between fender apron and the fender post because the difference in temperature and concrete shrink, and sealed fat has splendid waterproof leakproofness, can prevent that water from passing through seam crossing infiltration to guarantee the bearing capacity of fender post.
Drawings
FIG. 1 is a schematic view of the overall structure of the present embodiment;
FIG. 2 is an enlarged schematic view of portion A of FIG. 1;
fig. 3 is a partial cross-sectional view of the fender post of the present embodiment, primarily showing the fastener.
Reference numerals: 1. a fender pile; 2. a pipe groove; 3. a drain pipe; 4. water passing holes; 5. swelling water stop glue; 6. fixing the rod; 7. a right-angle triangular block; 8. a card slot; 9. a clamping block; 10. a chute; 11. a spring; 12. prestressed tendons; 13. geotextile; 14. a soil guard plate; 15. an expansion joint; 16. and (4) sealing the grease.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The utility model discloses a retaining structure for underground works excavation foundation ditch engineering on a large scale combines fig. 1 and fig. 2, including fender pile 1, fender pile 1 is prefabricated reinforced concrete pile, evenly is provided with prestressing tendons 12 in the fender pile 1, and prestressing tendons 12 adopts there is bonding prestressing tendons 12, makes it bond with the concrete through the grout after drawing a tensile. A soil retaining plate 14 is arranged between two adjacent fender posts 1, an expansion joint 15 is reserved on the contact surface of the fender post 1 and the soil retaining plate 14, and the expansion joint 15 is filled with sealing grease 16. The expansion joint 15 can avoid deformation and cracks between the retaining plate 14 and the fender post 1 due to temperature difference and concrete shrinkage, and the sealing grease 16 has excellent water-resistant sealing performance, so that water can be prevented from permeating through the joint, and the bearing capacity of the fender post 1 can be ensured.
Combine fig. 1 and fig. 2, the tub 2 has been seted up to fender pile 1 lateral wall, is provided with drain pipe 3 in the tub 2, has seted up water hole 4 along drain pipe 3 length direction interval, crosses water hole 4 one side and is provided with the filter piece that is used for filtering groundwater, filters the piece including wrapping up geotechnological cloth 13 on water hole 4, has laid cobblestone (not drawn in the picture) on drain pipe 3 one side, and the cobblestone contacts with geotechnological cloth 13. The cobblestone can filter the large granule impurity of groundwater, and geotechnological cloth 13 has good water permeability, also can filter the small granule impurity, prevents that impurity from blockking up drain pipe 3. The drain pipe 3 extends to be communicated with an external water pump (not shown in the figure), an expansion water stop glue 5 is arranged between the pipe groove 2 and the drain pipe 3, and a fixing piece for fixing the drain pipe 3 is arranged on the drain pipe 3.
Combine figure 1 and figure 2, drain pipe 3 passes through the mounting to be fixed in tube seat 2, when establishing fender pile 1 and have groundwater to infiltrate, groundwater filters through the cobblestone and the geotechnological cloth 13 in water hole 4 one side of crossing, prevents that impurity from blockking up drain pipe 3, takes water away through external suction pump, reduces because of the existence of groundwater and makes the soil property loose, fender pile 1's aversion phenomenon when reducing the pile, thereby improves fender pile 1's bearing capacity.
As shown in fig. 3, for installing drain pipe 3 fast, the mounting is including setting up dead lever 6 in drain pipe 3 bottom, be provided with three square blocks 7 on the dead lever 6, three square blocks 7's hypotenuse is kept away from 6 direction tilt up settings of dead lever by dead lever 6 bottom orientation, draw-in groove 8 has been seted up to 2 diapalls of pipe casing, 8 lateral wall sliding connection of draw-in groove has joint piece 9, joint piece 9 slides along 8 the central axis direction of perpendicular to draw-in groove, draw-in groove 8 lateral wall is offered and is used for supplying the gliding spout 10 of joint piece 9, joint piece 9 tip outside spout 10 is provided with the inclined plane, the inclined plane orientation is close to 8 diapalls downward sloping settings of draw-in groove, be provided with the elastic component that is used for ordering about joint piece 9 and removes outside spout 10, promote inclined plane joint piece 9.
When needs are fixed drain pipe 3 to the chase 2 in, insert drain pipe 3 along chase 2, when the hypotenuse of three hornblocks at right angle 7 and the inclined plane contact of joint piece 9, continue to promote drain pipe 3 downwards, joint piece 9 removes in spout 10 under the effect of external force this moment, when in 7 whole mobile card inslots 8 of three hornblocks at right angle, joint piece 9 removes outside spout 10 under the effect of elastic component, the butt is in three hornblocks at right angle 7 tops, joint piece 9 supports dead lever 6, prevent that drain pipe 3 from upwards moving. The installation of whole drain pipe 3 only needs to promote drain pipe 3 always, until dead lever 6 and draw-in groove 8 butt, the elastic component orders about joint piece 9 automatically and blocks dead lever 6 and right angle triangle piece 7 to fix drain pipe 3 in chase 2.
As shown in fig. 3, in order to facilitate the driving of the clamping block 9, the fixing rod 6 and the right-angled triangular block 7 are automatically clamped, the elastic part comprises a spring 11 arranged between the clamping block 9 and the bottom wall of the sliding groove 10, one end of the spring 11 is connected to the clamping block 9, the other end of the spring 11 is connected to the bottom wall of the sliding groove 10, and the clamping block 9 moves outwards towards the sliding groove 10 due to the elastic force of the spring 11, so that the clamping device is simple and convenient.
The implementation principle of the embodiment is as follows:
when needs are fixed drain pipe 3 to the chase 2 in, insert drain pipe 3 along chase 2, when the hypotenuse of three hornblocks at right angle 7 and the inclined plane contact of joint piece 9, continue to promote drain pipe 3 downwards, joint piece 9 removes in spout 10 under the effect of external force this moment, when in 7 whole mobile card inslots 8 of three hornblocks at right angle, joint piece 9 removes outside spout 10 under the effect of elastic component, the butt is in three hornblocks at right angle 7 tops, joint piece 9 supports dead lever 6, prevent that drain pipe 3 from upwards moving. The installation of whole drain pipe 3 only needs to promote drain pipe 3 always, until dead lever 6 and draw-in groove 8 butt, the elastic component orders about joint piece 9 automatically and blocks dead lever 6 and right angle triangle piece 7 to fix drain pipe 3 in chase 2.
When it has groundwater to infiltrate to establish fender pile 1 to beat, groundwater filters through the cobblestone and the geotechnological cloth 13 in water hole 4 one side, prevents that impurity from blockking up drain pipe 3, takes water away through external suction pump, reduces to make the soil property loose because of the existence of groundwater, and fender pile 1's aversion phenomenon when reducing the pile to improve fender pile 1's bearing capacity.
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 (7)
1. The utility model provides a retaining structure for underground works excavation foundation ditch engineering on a large scale, includes fender pile (1), its characterized in that: pipe casing (2) have been seted up to fender pile (1) lateral wall, be provided with drain pipe (3) in pipe casing (2), follow drain pipe (3) length direction interval has been seted up water hole (4), drain pipe (3) extend to with external suction pump intercommunication, be provided with inflation stagnant water glue (5) between pipe casing (2) and drain pipe (3), be provided with the mounting that is used for fixed drain pipe (3) on drain pipe (3), cross water hole (4) one side and be provided with the filter piece that is used for filtering groundwater.
2. The enclosure structure for excavation foundation pit engineering of large-scale underground engineering according to claim 1, characterized in that: the fixing piece comprises a fixing rod (6) arranged at the bottom of a drain pipe (3), a right-angle triangular block (7) is arranged on the fixing rod (6), the bevel edge of the right-angle triangular block (7) is upwards inclined from the bottom of the fixing rod (6) towards the direction far away from the fixing rod (6), a clamping groove (8) is formed in the bottom wall of the pipe groove (2), a clamping block (9) is connected to the side wall of the clamping groove (8) in a sliding mode, the clamping block (9) slides along the direction perpendicular to the central axis of the clamping groove (8), a sliding groove (10) for allowing the clamping block (9) to slide is formed in the side wall of the clamping groove (8), an inclined surface is arranged at the end part, outside the sliding groove (10), of the clamping block (9) is downwards inclined towards the bottom wall close to the clamping groove (8), an elastic piece for driving the clamping block (9) to move towards the outside the sliding groove, the inclined plane is pushed downwards along the central axis of the clamping groove (8) and the clamping block (9) moves towards the inside of the sliding groove (10).
3. The enclosure structure for excavation pit engineering of large-scale underground engineering according to claim 2, characterized in that: the elastic component comprises a spring (11) arranged between the clamping block (9) and the bottom wall of the sliding groove (10), one end of the spring (11) is connected to the clamping block (9), and the other end of the spring is connected to the bottom wall of the sliding groove (10).
4. The enclosure structure for excavation foundation pit engineering of large-scale underground engineering according to claim 1, characterized in that: prestressed tendons (12) are uniformly arranged in the fender post (1).
5. The enclosure structure for excavation foundation pit engineering of large-scale underground engineering according to claim 1, characterized in that: the filter member is including wrapping up geotechnological cloth (13) on water hole (4) through, the cobblestone has been laid to drain pipe (3) one side, the cobblestone contacts with geotechnological cloth (13).
6. The enclosure structure for excavation foundation pit engineering of large-scale underground engineering according to claim 1, characterized in that: a soil retaining plate (14) is arranged between two adjacent fender piles (1).
7. The enclosure structure for excavation pit engineering of large-scale underground engineering according to claim 6, characterized in that: an expansion joint (15) is reserved on the contact surface of the fender guard pile (1) and the fender guard plate (14), and sealing grease (16) is filled in the expansion joint (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922044139.7U CN211498867U (en) | 2019-11-23 | 2019-11-23 | A envelope for underground works excavation foundation ditch engineering on a large scale |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922044139.7U CN211498867U (en) | 2019-11-23 | 2019-11-23 | A envelope for underground works excavation foundation ditch engineering on a large scale |
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| Publication Number | Publication Date |
|---|---|
| CN211498867U true CN211498867U (en) | 2020-09-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922044139.7U Active CN211498867U (en) | 2019-11-23 | 2019-11-23 | A envelope for underground works excavation foundation ditch engineering on a large scale |
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| CN (1) | CN211498867U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112761171A (en) * | 2021-01-05 | 2021-05-07 | 安徽理工大学 | Anti-slide pile inserter |
-
2019
- 2019-11-23 CN CN201922044139.7U patent/CN211498867U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112761171A (en) * | 2021-01-05 | 2021-05-07 | 安徽理工大学 | Anti-slide pile inserter |
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