CN110761301A - Protection structure close to existing high-speed rail pebble layer water-rich deep foundation pit - Google Patents
Protection structure close to existing high-speed rail pebble layer water-rich deep foundation pit Download PDFInfo
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- CN110761301A CN110761301A CN201911088297.0A CN201911088297A CN110761301A CN 110761301 A CN110761301 A CN 110761301A CN 201911088297 A CN201911088297 A CN 201911088297A CN 110761301 A CN110761301 A CN 110761301A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 77
- 238000005553 drilling Methods 0.000 claims abstract description 76
- 230000002787 reinforcement Effects 0.000 claims abstract description 43
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 11
- 229910052742 iron Inorganic materials 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 7
- 238000004891 communication Methods 0.000 claims description 2
- 238000001914 filtration Methods 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 230000008093 supporting effect Effects 0.000 abstract description 13
- 229910000831 Steel Inorganic materials 0.000 abstract description 12
- 239000010959 steel Substances 0.000 abstract description 12
- 238000012545 processing Methods 0.000 abstract description 2
- 238000013461 design Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
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Abstract
The invention provides a protection structure close to an existing high-speed rail pebble layer water-rich deep foundation pit, and relates to the technical field of deep foundation pit protection. This existing high-speed railway pebble bed rich water deep basal pit protection architecture of next-door neighbour, including ground, the high-speed railway circuit has been laid on the top on ground, the right side fixed mounting of high-speed railway circuit has the deformation observation point, there is the deep basal pit on the surface on ground, the left side pouring of the inside deep basal pit in ground has the drilling fender pile, circular steel reinforcement cage has been placed to the inside of drilling fender pile. This existing high-speed railway pebble bed rich water deep basal pit protection architecture of next-door neighbour has avoided the processing to the deep basal pit inner wall, and convenient and fast more is less to the influence of ground internal stress simultaneously, has avoided causing orbital deformation in the work progress, has improved the yield strength that drilling fender post and interlock stagnant water stake supported to the stratum, has improved the supporting effect to the stratum, has improved the stability of bracing piece.
Description
Technical Field
The invention relates to the technical field of deep foundation pit protection, in particular to a water-rich deep foundation pit protection structure close to an existing high-iron pebble layer.
Background
Along with the development of urban construction, the deep foundation pits next to the existing operating high-speed railway are more and more, because the high-speed ballastless track is extremely sensitive to deformation, the requirement of 'zero settlement' is almost met for the ballastless track high-speed railway in operation, when the stratum is a sand gravel layer with high water permeability, the underground water level is often high, the excavation and precipitation of the conventional foundation pit can generate influences of different degrees on the next-to-adjacent existing high-speed ballastless track railway, and even can endanger the operation safety of the high-speed railway, so that a protective structure is required to be built in the deep foundation pit.
However, according to the observation and research on the conventional deep foundation pit protection structure, the following problems are found in the conventional deep foundation pit protection structure:
1. when pouring support and stagnant water wall on being close to the deep basal pit inner wall of railway line one side, traditional protective structure is through strickleing off earlier the inner wall of deep basal pit, and direct pouring stagnant water wall on the inner wall again, nevertheless just causes the landslide on stratum easily at the in-process of strickleing off the deep basal pit inner wall for in the work progress, just make the track take place to warp easily, and the pouring degree of difficulty is big.
2. The design of the whole water stop wall reduces the yield strength of the water stop wall to the stratum support, easily accumulates the pressure generated by the water stop wall to the stratum, and easily generates the phenomena of collapse and fracture.
3. Traditional protective structure's bracing piece all is horizontal fixed connection in the upper and lower both sides of deep basal pit, and when stratum warp appears in deep basal pit one side, horizontal bracing piece's stability is relatively poor, follows the deformation in stratum easily and takes place the slope for the bracing piece descends to the support ability in both sides stratum.
In order to solve the problems, the inventor provides a protection structure close to the water-rich deep foundation pit with the existing high-speed rail pebble layer, the treatment of the inner wall of the deep foundation pit is avoided, the protection structure is more convenient and quicker, meanwhile, the influence on the ground internal stress is smaller, the deformation of a track caused in the construction process is avoided, the yield strength of a drilling hole enclosure pile and an occlusion water stop pile on a stratum support is improved, the support effect on the stratum is improved, and the stability of a support rod is improved.
Disclosure of Invention
In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a be close to existing high-speed railway cobble layer deep basal pit protection structure of rich water, includes ground, high-speed railway circuit, deformation observation point, deep basal pit, drilling fender pile, circular steel reinforcement cage, interlock stagnant water stake, rectangle steel reinforcement cage, horizontal steel reinforcement cage, connecting pile, spud pile, connecting seat, elbow, bracing piece, threaded rod, polygon sleeve, pit bottom sealing layer, water level adjusting well, connecting pipe.
Wherein:
the high-speed rail line is laid at the top end of the ground, deformation observation points are fixedly mounted on the right side of the high-speed rail line, a deep foundation pit exists on the surface of the ground, a drilling fender post is poured on the left side of the deep foundation pit in the ground, a circular reinforcement cage is placed inside the drilling fender post, an occlusion water-stop pile is poured between the drilling fender posts, a rectangular reinforcement cage is placed inside the occlusion water-stop pile, a transverse reinforcement cage is placed at the top ends of the drilling fender post and the occlusion water-stop pile, a connecting pile is poured on the periphery of the transverse reinforcement cage, a fixed pile is poured on the right side of the deep foundation pit in the ground, the fixed pile is the same as the drilling fender post, the circular reinforcement cage is placed inside the fixed pile, a connecting pile is poured on the top end, connecting seats are fixedly mounted on the adjacent surfaces of the drilling fender post and the fixed pile, and supporting rods are fixedly connected between, the supporting rod is characterized in that a threaded rod is fixedly mounted at the adjacent end of the supporting rod, a polygonal sleeve is connected to the periphery of the threaded rod in a threaded manner, a pit bottom sealing layer is poured at the bottom end of the deep foundation pit, a water level adjusting well is arranged on the right side of the ground internal fixing pile, and a connecting pipe is communicated between the water level adjusting well and the deep foundation pit.
Preferably, the drilling fender post is located one side that deep basal pit is close to the high-speed railway circuit, and does not contact with deep basal pit's inner wall, the drilling fender post extends to the below of deep basal pit bottom for the drilling fender post does not contact with deep basal pit, and direct pouring forms after trompil through the drilling machine.
Preferably, interlock stagnant water stake is located between the drilling fender pile, and with the mutual interlock of drilling fender pile, the height of interlock stagnant water stake bottom is located below the deep basal pit bottom, more than the drilling fender pile bottom for the combined type design for mutual interlock between drilling fender pile and the interlock stagnant water stake.
Preferably, circular steel reinforcement cage extends to the top of drilling fender pile and interlock stagnant water stake upper surface, and with the perpendicular alternately winding of horizontal steel reinforcement cage, utilizes the connecting pile and the ground looks parallel and level of horizontal steel reinforcement cage pouring, through the transverse connection of connecting pile to circular steel reinforcement cage, has improved the stability of circular steel reinforcement cage and the combination of interlock stagnant water stake.
Preferably, two bracing pieces of fixedly connected with between single drilling fender pile and the spud pile, and be the crisscross distribution for the bracing piece is the crisscross support to the drilling fender pile and the spud pile of both sides.
Preferably, the polygonal sleeve is located on the periphery of the threaded rods on the two sides, and the lines of the threaded rods on the two sides are opposite, so that when the polygonal sleeve is rotated, the threaded rods on the two sides can move inwards or outwards at the same time, and the supporting rods on the two sides can contract or extend at the same time.
Preferably, the connecting pipe is located the bottom of deep basal pit with the intercommunication department of deep basal pit, just the internally mounted of connecting pipe has filter equipment for the water level regulating well can be adjusted the low water level of deep basal pit.
The invention provides a protection structure close to a water-rich deep foundation pit of an existing high-iron pebble layer. The method has the following beneficial effects:
1. this existing high-speed railway pebble bed rich water deep basal pit protection architecture of next-door neighbour, lie in one side that the deep basal pit is close to the high-speed railway circuit through the fender pile that drills, and the design that does not contact with the inner wall of deep basal pit, when the pouring, directly drill the hole with the drilling machine to direct pouring has been avoided the processing to the deep basal pit inner wall, convenient and fast more, and the influence to the internal stress of ground is less simultaneously, has avoided causing orbital deformation in the work progress.
2. This existing high-speed railway pebble bed rich water deep basal pit protection structure of next-door neighbour pours successively through drilling fender pile and interlock stagnant water stake, and the combined type design of mutual interlock has improved the yield strength that drilling fender pile and interlock stagnant water stake supported to the stratum when playing the stagnant water effect, has avoided monoblock stagnant water wall to appear collapsing easily and cracked phenomenon, has improved the support effect to the stratum.
3. This existing high-speed railway pebble bed rich water deep basal pit protection architecture of next-door neighbour, through the design of bracing piece alternately fixed connection between drilling fender pile and the spud pile, improved the stability of bracing piece, avoided the bracing piece to follow the deformation of stratum and the phenomenon that takes place the slope, improved the bracing effect of bracing piece to both sides stratum.
4. This existing high-speed railway pebble bed rich water deep basal pit protection architecture of next-door neighbour, through the telescopic cooperation of adjacent side screw rod of bracing piece and polygon, utilize to rotate the polygon sleeve and can adjust the whole length of bracing piece for the bracing piece obtains complete extension between drilling fender pile and spud pile, has guaranteed the supporting role of bracing piece.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view of a top view of the structure of the present invention;
FIG. 3 is a cross-sectional view of a side of the bored fender pile structure of the present invention;
FIG. 4 is an enlarged view of the structure of FIG. 2;
FIG. 5 is a schematic structural view of a support bar according to the present invention;
FIG. 6 is an enlarged view of the structure of FIG. 5 at B according to the present invention.
In the figure: 1. a ground surface; 2. a high-speed rail line; 3. a deformation observation point; 4. a deep foundation pit; 5. drilling a fender post; 6. a circular reinforcement cage; 7. engaging the water-stopping pile; 8. a rectangular reinforcement cage; 9. a transverse reinforcement cage; 10. connecting piles; 11. fixing the pile; 12. a connecting seat; 13. bending the pipe; 14. a support bar; 15. a threaded rod; 16. a polygonal sleeve; 17. a pit bottom sealing layer; 18. a water level adjusting well; 19. and (4) connecting the pipes.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the protection structure close to the water-rich deep foundation pit of the existing high-iron pebble layer is as follows:
referring to fig. 1-6, a protection structure of a deep foundation pit adjacent to an existing high-iron pebble layer rich in water comprises 1, a ground; 2. a high-speed rail line; 3. a deformation observation point; 4. a deep foundation pit; 5. drilling a fender post; 6. a circular reinforcement cage; 7. engaging the water-stopping pile; 8. a rectangular reinforcement cage; 9. a transverse reinforcement cage; 10. connecting piles; 11. fixing the pile; 12. a connecting seat; 13. bending the pipe; 14. a support bar; 15. a threaded rod; 16. a polygonal sleeve; 17. a pit bottom sealing layer; 18. a water level adjusting well; 19. and (4) connecting the pipes.
Wherein:
the top end of a ground 1 is paved with a high-speed rail line 2, the right side of the high-speed rail line 2 is fixedly provided with a deformation observation point 3, the surface of the ground 1 is provided with a deep foundation pit 4, the left side of the deep foundation pit 4 in the ground 1 is poured with a drilling fender post 5, the drilling fender post 5 is positioned at one side of the deep foundation pit 4 close to the high-speed rail line 2 and is not contacted with the inner wall of the deep foundation pit 4, the drilling fender post 5 extends to the lower part of the bottom end of the deep foundation pit 4, so that the drilling fender post 5 is not contacted with the deep foundation pit 4 and is directly formed by pouring after the drilling machine is opened, the drilling fender post 5 is positioned at one side of the deep foundation pit 4 close to the high-speed rail line 2 and is not contacted with the inner wall of the deep foundation pit 4, during pouring, the drilling is directly carried out by the drilling machine, the pouring is directly carried out, the treatment of the inner wall of, the deformation of the track caused in the construction process is avoided.
A circular reinforcement cage 6 is placed inside the drilling fender post 5, the circular reinforcement cage 6 extends to the upper part of the upper surfaces of the drilling fender post 5 and the occlusion water stop pile 7 and is vertically and crossly wound with the transverse reinforcement cage 9, a connecting pile 10 poured by the transverse reinforcement cage 9 is flush with the ground surface, the stability of the combination of the circular reinforcement cage 6 and the occlusion water stop pile 7 is improved by the transverse connection of the connecting pile 10 to the circular reinforcement cage 6, the occlusion water stop pile 7 is poured between the drilling fender posts 5, the occlusion water stop pile 7 is positioned between the drilling fender posts 5 and is occluded with the drilling fender post 5, the height of the bottom end of the occlusion water stop pile 7 is positioned below the bottom end of the deep foundation pit 4, the bottom end of the drilling fender post 5 is above the bottom end, so that the drilling fender post 5 and the occlusion water stop pile 7 are in a mutually occluded combined design, the rectangular reinforcement cage 8 is placed inside the occlusion water stop pile 7, horizontal steel reinforcement cage 9 has been placed on the top of drilling fender post 5 and interlock stagnant water stake 7, and the peripheral pouring of horizontal steel reinforcement cage 9 has connecting pile 10, successively pours through drilling fender post 5 and interlock stagnant water stake 7, and the modular design of mutual interlock has improved the yield strength that drilling fender post 5 and interlock stagnant water stake 7 supported to the stratum when playing the stagnant water effect, has avoided monoblock stagnant water wall to appear collapsing and cracked phenomenon easily, has improved the support effect to the stratum.
The pouring of the right side of the deep basal pit 4 in 1 inside on ground has spud pile 11, spud pile 11 is the same with drilling fender pile 5, circular steel reinforcement cage 6 has been placed to inside, the top pouring has connecting pile 10, there is connecting seat 12 drilling fender pile 5 and the looks fixed mounting of spud pile 11, through elbow 13 fixedly connected with bracing piece 14 between the connecting seat 12, two spinal branch vaulting poles of fixedly connected with 14 between single drilling fender pile 5 and the spud pile 11, and be the cross distribution, make bracing piece 14 be the cross support to drilling fender pile 5 and spud pile 11 of both sides, through the design of bracing piece 14 cross fixed connection between drilling fender pile 5 and the spud pile 11, the stability of bracing piece 14 has been improved, the phenomenon that the bracing piece 14 takes place the slope along with the deformation of stratum has been avoided, the supporting effect of bracing piece 14 to the both sides stratum has been improved.
The adjacent end of the supporting rod 14 is fixedly provided with a threaded rod 15, the periphery of the threaded rod 15 is in threaded connection with a polygonal sleeve 16, the polygonal sleeve 16 is positioned at the periphery of the threaded rods 15 at two sides, and the lines of the threaded rods 15 at two sides are opposite, therefore, when the polygonal sleeve 16 is rotated, the threaded rods 15 at two sides can simultaneously move inwards or outwards, the supporting rods 14 at two sides can simultaneously contract or extend, the bottom end of the deep foundation pit 4 is poured with a pit bottom sealing layer 17, the right side of the fixing pile 11 in the ground 1 is provided with a water level adjusting well 18, a connecting pipe 19 is communicated between the water level adjusting well 18 and the deep foundation pit 4, the communication part of the connecting pipe 19 and the deep foundation pit 4 is positioned at the bottom of the deep foundation pit 4, and the inside of the connecting pipe 19 is provided with a filtering device, so that the water level adjusting well 18 can adjust the low water level, the overall length of the support rods 14 can be adjusted by rotating the polygonal sleeves 16 so that the support rods 14 are fully extended between the borehole retaining piles 5 and the spud piles 11, ensuring the supporting function of the support rods 14.
When in use, a drilling machine is used for drilling on the ground 1 between the high-speed rail line 2 and the deep foundation pit 4 to enable the depth of the drilling machine to be below the bottom of the deep foundation pit 4, then a circular reinforcement cage 6 is placed in the drilled deep hole and poured to form a drilling enclosure pile 5, after the drilling enclosure pile 5 is solidified, drilling is carried out between the drilling enclosure piles 5, a rectangular reinforcement cage 8 is placed in the drilling enclosure pile 5 and poured to form an occluded water stop pile 7, then a transverse reinforcement cage 9 is placed above the drilling enclosure pile 5 and the occluded water stop pile 7 and is in cross connection with an extending part at the top of the transverse reinforcement cage 9 to be poured to form a connecting pile 10, similarly, drilling is carried out on the ground 1 on one side of the deep foundation pit 4 far away from the high-speed rail line 2, the circular reinforcement cage 6 is placed to form a fixed pile 11, the connecting pile 10 is poured at the top end, then the connecting pile 10 is poured in the deep foundation pit 4, connecting seats 12 are fixedly installed on the adjacent surfaces of the drilling retaining piles 5 and the fixing piles 11, supporting rods 14 are fixedly connected between the connecting seats 12 in a crossing manner by using elbows 13, by rotating the polygonal sleeve 16 and utilizing the threaded connection between the polygonal sleeve 16 and the threaded rods 15 with opposite lines on both sides, the threaded rods 15 can drive the supporting rods 14 on both sides to simultaneously contract and extend, further, the overall length of the support rod 14 is adjusted to have a supporting effect on the drilled fender posts 5 and the fixing posts 11 at both sides, and then a reinforcing mesh is laid on the ground of the deep foundation pit 4, and a pit bottom sealing layer 17 is cast, a water level adjusting well 18 is arranged at the right side of the deep foundation pit 4 and is communicated with the deep foundation pit 4 through a connecting pipe 19, so that the water level inside the deep foundation pit 4 can be adjusted, and the formation change near the high-speed rail line 2 can be monitored through the deformation observation point 3 on the high-speed rail line 2 side.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a next-door neighbour's existing high-speed railway pebble bed rich water deep basal pit protection structure, includes ground (1), its characterized in that: the high-speed rail line (2) is laid on the top end of the ground (1), a deformation observation point (3) is fixedly mounted on the right side of the high-speed rail line (2), a deep foundation pit (4) exists on the surface of the ground (1), a drilling retaining pile (5) is poured on the left side of the deep foundation pit (4) inside the ground (1), a circular reinforcement cage (6) is placed inside the drilling retaining pile (5), an occlusion water stop pile (7) is poured between the drilling retaining piles (5), a rectangular reinforcement cage (8) is placed inside the occlusion water stop pile (7), a transverse reinforcement cage (9) is placed on the top ends of the drilling retaining pile (5) and the occlusion water stop pile (7), a connecting pile (10) is poured on the periphery of the transverse reinforcement cage (9), a fixing pile (11) is poured on the right side of the deep foundation pit (4) inside the ground (1), and a connecting seat (12) is fixedly mounted on the adjacent surface of the drilling retaining pile (5) and the fixing pile (11), through elbow (13) fixedly connected with bracing piece (14) between connecting seat (12), the adjacent end fixed mounting of bracing piece (14) has threaded rod (15), the peripheral threaded connection of threaded rod (15) has polygon sleeve (16), the bottom pouring of deep basal pit (4) has hole bottom sealing layer (17), water level adjusting well (18) have been seted up on the right side of ground (1) inside spud pile (11), the intercommunication has connecting pipe (19) between water level adjusting well (18) and deep basal pit (4).
2. The protection structure for the deep foundation pit adjacent to the existing high-iron pebble bed rich in water according to claim 1, wherein the protection structure comprises: drilling fender pile (5) are located deep basal pit (4) and are close to one side of high-speed railway circuit (2), and do not contact with the inner wall of deep basal pit (4), drilling fender pile (5) extend to the below of deep basal pit (4) bottom.
3. The protection structure for the deep foundation pit adjacent to the existing high-iron pebble bed rich in water according to claim 1, wherein the protection structure comprises: interlock stagnant water stake (7) are located between drilling fender pile (5), and with drilling fender pile (5) interlock each other, the height in interlock stagnant water stake (7) bottom is located deep basal pit (4) bottom below, more than drilling fender pile (5) bottom.
4. The protection structure for the deep foundation pit adjacent to the existing high-iron pebble bed rich in water according to claim 1, wherein the protection structure comprises: the round reinforcement cage (6) extends to the upper part of the upper surfaces of the drilling fender post (5) and the occlusion water stop pile (7), and is vertically and crossly wound with the transverse reinforcement cage (9), and a connecting pile (10) poured by utilizing the transverse reinforcement cage (9) is level with the ground surface.
5. The protection structure for the deep foundation pit adjacent to the existing high-iron pebble bed rich in water according to claim 1, wherein the protection structure comprises: the fixing pile (11) is the same as the drilling fender post (5), a circular reinforcement cage (6) is placed inside the fixing pile, and a connecting pile (10) is poured on the top end of the fixing pile.
6. The protection structure for the deep foundation pit adjacent to the existing high-iron pebble bed rich in water according to claim 1, wherein the protection structure comprises: two support rods (14) are fixedly connected between the single drilling fender post (5) and the fixed pile (11) and are distributed in a crossed manner.
7. The protection structure for the deep foundation pit adjacent to the existing high-iron pebble bed rich in water according to claim 1, wherein the protection structure comprises: the polygonal sleeve (16) is positioned on the periphery of the threaded rods (15) on the two sides, and the lines of the threaded rods (15) on the two sides are opposite.
8. The protection structure for the deep foundation pit adjacent to the existing high-iron pebble bed rich in water according to claim 1, wherein the protection structure comprises: the connecting pipe (19) is located at the bottom of the deep foundation pit (4) in communication with the deep foundation pit (4), and a filtering device is arranged inside the connecting pipe (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911088297.0A CN110761301A (en) | 2019-11-08 | 2019-11-08 | Protection structure close to existing high-speed rail pebble layer water-rich deep foundation pit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911088297.0A CN110761301A (en) | 2019-11-08 | 2019-11-08 | Protection structure close to existing high-speed rail pebble layer water-rich deep foundation pit |
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| CN110761301A true CN110761301A (en) | 2020-02-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911088297.0A Pending CN110761301A (en) | 2019-11-08 | 2019-11-08 | Protection structure close to existing high-speed rail pebble layer water-rich deep foundation pit |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204252144U (en) * | 2014-09-28 | 2015-04-08 | 中国石油天然气股份有限公司 | Excavation operating pit anti-collapse device |
| CN106284992A (en) * | 2016-09-18 | 2017-01-04 | 广西钦州展兴建设工程有限公司 | Mould plate supporting device |
| CN208105281U (en) * | 2018-04-08 | 2018-11-16 | 中建五局土木工程有限公司 | A kind of the Metro station excavation sealing and precipitation system of the sand-pebble layer containing rich water |
| CN109137949A (en) * | 2018-09-06 | 2019-01-04 | 中铁第勘察设计院集团有限公司 | Deep soft stratum combined type foundation pit Water outburst treatment construction and method |
| CN109518698A (en) * | 2018-12-20 | 2019-03-26 | 中铁二院工程集团有限责任公司 | Close to operation high-speed rail sand pebble layer rich water deep footing groove enclosing structure and its construction method |
-
2019
- 2019-11-08 CN CN201911088297.0A patent/CN110761301A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204252144U (en) * | 2014-09-28 | 2015-04-08 | 中国石油天然气股份有限公司 | Excavation operating pit anti-collapse device |
| CN106284992A (en) * | 2016-09-18 | 2017-01-04 | 广西钦州展兴建设工程有限公司 | Mould plate supporting device |
| CN208105281U (en) * | 2018-04-08 | 2018-11-16 | 中建五局土木工程有限公司 | A kind of the Metro station excavation sealing and precipitation system of the sand-pebble layer containing rich water |
| CN109137949A (en) * | 2018-09-06 | 2019-01-04 | 中铁第勘察设计院集团有限公司 | Deep soft stratum combined type foundation pit Water outburst treatment construction and method |
| CN109518698A (en) * | 2018-12-20 | 2019-03-26 | 中铁二院工程集团有限责任公司 | Close to operation high-speed rail sand pebble layer rich water deep footing groove enclosing structure and its construction method |
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