CN112854273A - Excavation-free construction process and construction equipment for green urban underground structures - Google Patents
Excavation-free construction process and construction equipment for green urban underground structures Download PDFInfo
- Publication number
- CN112854273A CN112854273A CN202011631313.9A CN202011631313A CN112854273A CN 112854273 A CN112854273 A CN 112854273A CN 202011631313 A CN202011631313 A CN 202011631313A CN 112854273 A CN112854273 A CN 112854273A
- Authority
- CN
- China
- Prior art keywords
- section
- shower nozzle
- thick bamboo
- support
- construction equipment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000010276 construction Methods 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims description 15
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims abstract description 49
- 235000017491 Bambusa tulda Nutrition 0.000 claims abstract description 49
- 241001330002 Bambuseae Species 0.000 claims abstract description 49
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims abstract description 49
- 239000011425 bamboo Substances 0.000 claims abstract description 49
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 43
- 239000002689 soil Substances 0.000 claims abstract description 37
- 239000002002 slurry Substances 0.000 claims abstract description 30
- 238000005086 pumping Methods 0.000 claims abstract description 22
- 239000004576 sand Substances 0.000 claims abstract description 20
- 238000009434 installation Methods 0.000 claims abstract description 4
- 239000003818 cinder Substances 0.000 claims abstract description 3
- 230000001681 protective effect Effects 0.000 claims description 44
- 239000007921 spray Substances 0.000 claims description 16
- 239000002893 slag Substances 0.000 claims description 10
- 239000004575 stone Substances 0.000 claims description 8
- 238000007599 discharging Methods 0.000 claims description 6
- 238000002360 preparation method Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 7
- 239000000203 mixture Substances 0.000 abstract description 5
- 239000007788 liquid Substances 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 2
- 239000013049 sediment Substances 0.000 abstract description 2
- 238000003756 stirring Methods 0.000 description 14
- 238000009412 basement excavation Methods 0.000 description 3
- 239000004567 concrete Substances 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 238000007790 scraping Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000008399 tap water Substances 0.000 description 2
- 235000020679 tap water Nutrition 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D23/00—Caissons; Construction or placing of caissons
- E02D23/08—Lowering or sinking caissons
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
- Earth Drilling (AREA)
Abstract
The utility model relates to a green city underground structures exempts from to excavate construction technology and construction equipment, it is including protecting a section of thick bamboo, the inside demountable installation who protects a section of thick bamboo has the support, be provided with the shower nozzle group that is used for erodeing the open caisson diapire on the diapire of support, the external water source of the port of intaking of shower nozzle group, be provided with the slurry pumping pipe on protecting the inner wall of a section of thick bamboo, the one end of slurry pumping pipe is located the below of the end of water outlet of shower nozzle group, the external album of cinder pond of the other end, be provided with the pump of taking out sand on the slurry pumping pipe, the end intercommunication of advancing sand of pump is to protecting in the section. Constructor will protect a section of thick bamboo and install subaerial back, by shower nozzle group erode protect the inside ground of a section of thick bamboo, make soil body and water mix and be the thick liquid water mixture, protect a loose back of a below soil body, protect a section of thick bamboo and sink under the dead weight effect, again by taking out husky pump, will protect the thick liquid in the section of thick bamboo and take out to the sediment pond that gathers, repeated continuation operation can make and protect a section of thick bamboo and sink to the elevation, this application has the effect of using manpower sparingly and improvement open caisson efficiency of construction.
Description
Technical Field
The application relates to the field of building technology, in particular to a green city underground structure excavation-free construction process and construction equipment.
Background
The open caisson is a well cylindrical structure, and is formed by digging soil in the well, overcoming the frictional resistance of the well wall by means of the self gravity, sinking to a designed elevation, sealing the bottom by concrete, and filling a well hole, so that the open caisson becomes the foundation of a bridge abutment or other structures. The device is generally used for constructing a retaining device in foundation pits of large-scale piers, sewage pump stations, large-scale equipment foundations, civil air defense shelters, shield assembly wells, underground driveways and station hydraulic foundations.
The patent with publication number CN1888329A discloses a construction method of open caisson structure, firstly selecting the position of open caisson through exploration; placing a steel reinforcement cage, and beating a ring beam of reinforced concrete; after the concrete ring beam is solidified and reaches the preset strength, continuously digging downwards in the ring beam, and taking away part of soil at the bottom of the inner core of the ring beam to enable the ring beam to sink; building a well protection wall on the ring beam; after the well protection wall reaches the preset strength, taking away soil bodies in the well and at the bottom of the well protection wall until the depth of the open caisson meets the requirement; and finally building a well edge until a well is formed.
With respect to the related art among the above, there are the following drawbacks: the open caisson is sunk by manually digging the soil body below the open caisson, so that the workload of constructors is large and the construction efficiency is low.
Disclosure of Invention
In order to improve the construction efficiency and simplify the workload of constructors, the application provides a construction process and construction equipment for excavation-free construction of green urban underground structures.
In a first aspect, the application provides a green city underground structure excavation-free construction equipment, which adopts the following technical scheme:
the utility model provides a green city underground structures exempts from to excavate construction equipment, includes and protects a section of thick bamboo, the inside demountable installation who protects a section of thick bamboo has the support, be provided with the shower nozzle group that is used for erodeing the open caisson diapire on the diapire of support, the external water source of the port of intaking of shower nozzle group, be provided with the slurry pumping pipe on protecting the inner wall of a section of thick bamboo, the one end of slurry pumping pipe is located the below of the water outlet end of shower nozzle group, the external album cinder pond of the other end, be provided with the pump that pumps sand on the slurry pumping pipe, the end intercommunication that advances of pump that pumps sand is to protecting in the section of thick bamboo, the bottom of support.
Through adopting above-mentioned technical scheme, constructor is installing protecting a section of thick bamboo subaerial after, start the shower nozzle group, by the inside ground of protecting a section of thick bamboo of shower nozzle group scour, start agitating unit simultaneously, stir the subaerial soil body, make the soil body and water mix and be the thick liquid water mixture, and protect a section of thick bamboo after the below soil body is loose, sink under the dead weight effect, start the sand pump simultaneously, take out the thick liquid in protecting a section of thick bamboo to the sediment pond that gathers, repeated continuation operation, can make and protect a section of thick bamboo and constantly sink, sink to the elevation until protecting a section of thick bamboo top, save constructor manual excavation to the soil stone, use manpower sparingly, and improve open caisson efficiency of construction.
Optionally, agitating unit includes dwang, drill bit and first driving source, the vertical rotation of dwang sets up on the support, the drill bit sets firmly the bottom at the dwang, first driving source sets up and is used for driving about the dwang rotation on the support.
Through adopting above-mentioned technical scheme, after constructor starts first driving source, drive the dwang by first driving source and rotate to drive the drill bit and to the broken stirring of the soil body below the support, accelerate soil body and water mixing, improve the efficiency of construction.
Optionally, it is provided with a plurality of cranes to slide along vertical direction on the support, the dwang rotates to be connected on the crane, first driving source sets firmly on the crane, the support is improved level and is provided with the axis of rotation, the both ends and the rotate bracket of axis of rotation are connected, set firmly on the support and be used for ordering about axis of rotation pivoted second driving source, the cam has set firmly in the axis of rotation, the lateral wall of cam and the horizontal plate face sliding contact of crane, be equipped with on the support and be used for ordering about the crane and be close to the spring of cam, fixed connection, the other end and crane fixed connection between the one end of spring and.
By adopting the technical scheme, after a constructor starts the second driving source, the second driving source drives the rotating shaft and the cam on the rotating shaft to rotate, so that the support rises and falls to continuously move up and down under the combined action of the spring and the cam, a soil body below the support is better broken, the mixing of the soil body and water is further accelerated, and the construction efficiency is improved.
Optionally, the shower nozzle group includes interior shower nozzle and outer shower nozzle, outer shower nozzle sets up the border that is close to a section of thick bamboo inner wall at the support, the water outlet port of outer shower nozzle is vertical down, outer shower nozzle is provided with a plurality ofly along protecting a section of thick bamboo even interval in circumference, even array of interior shower nozzle is provided with a plurality ofly on the diapire of support, it is inboard that interior shower nozzle is located outer shower nozzle, the water outlet port of interior shower nozzle is vertical down.
Through adopting above-mentioned technical scheme, when starting shower nozzle group and erodeing protecting a below ground, earlier start outer shower nozzle and interior shower nozzle simultaneously, erode protecting a below ground emphatically by outer shower nozzle, make and protect a section of thick bamboo and sink fast, sink after suitable height when protecting a section of thick bamboo, at first close outer shower nozzle, continue by interior shower nozzle and slurry pumping pipe operation, to protecting a section of thick bamboo inside soil body intensive mixing and take out the back, continue to open outer shower nozzle again and erode, make slurry pumping pipe can fully will protect a section of thick bamboo in the soil body take out, protect a section of thick bamboo and descend steadily, convenient operation.
Optionally, a mounting ring is rotatably arranged on the bottom wall of the support, the mounting ring is coaxial with the protective cylinder, the outer nozzle is arranged on the mounting ring, and a driving device for driving the mounting ring to rotate in a reciprocating manner is arranged on the support.
Through adopting above-mentioned technical scheme, constructor orders about the collar and drives outer shower nozzle at a fender section of thick bamboo edge reciprocating motion after starting drive arrangement, makes outer shower nozzle can evenly erode the soil body below the section of thick bamboo of protecting, makes the section of thick bamboo that protects all directions sink evenly, improves and protects a section of thick bamboo and sink in-process verticality effect and keep.
Optionally, the driving device includes a gear ring, a gear and a third driving source, the gear ring is coaxially and fixedly arranged on the inner wall of the mounting ring, the gear is engaged with the gear ring, the third driving source is fixedly arranged on the bracket, and the third driving source drives the gear to rotate.
Through adopting above-mentioned technical scheme, constructor starts the third driving source, can drive the gear rotatory, through the transmission between gear and the rack to drive the collar and rotate, and just reverse through the third driving source, thereby make the gear just reverse and drive outer shower nozzle round trip movement, erode the soil body below the section of thick bamboo of protecting, convenient to use.
Optionally, the lower end of the casing is provided with a cutting edge, and the cutting edge is close to the inner side of the casing.
Through adopting above-mentioned technical scheme, when the shower nozzle is washd protecting a section of thick bamboo below outside, the blade shelters from rivers, prevents effectively that outer shower nozzle will protect the outer soil body of section of thick bamboo to wash out the breach, keeps protecting a section of thick bamboo installation stability.
Optionally, the guide frame is arranged on the ground, guide rollers are rotatably arranged on the inner wall of the guide frame, at least two rows of guide rollers are arranged along the vertical direction at even intervals, multiple groups of guide rollers are arranged along the circumferential direction of the protective cylinder at even intervals, and the outer wall of each guide roller is in sliding contact with the outer wall of the protective cylinder.
Through adopting above-mentioned technical scheme, at the section of thick bamboo that protects and sink the in-process, the guide roll through on guide frame and the guide frame is to protecting the sunken direction of section of thick bamboo and leading, further keeps protecting a section of thick bamboo that sinks the straightness that hangs down of in-process section of thick bamboo, further improves the open caisson quality.
In a second aspect, the application provides a green city underground structure excavation-free construction process, which adopts the following technical scheme:
a green city underground structure excavation-free construction process comprises the following steps:
(1) preparation work: leveling a field, and measuring and positioning;
(2) positioning a protective cylinder: excavating a positioning shallow pit, and hoisting a protective cylinder in place;
(3) sinking the pile casing: the bottom of the pile casing is flushed with water to loosen the ground at the bottom of the pile casing, so that the pile casing uniformly sinks under the action of self weight, and soil in the inner area of the pile casing is stirred by adding water;
(4) discharging sand and stone: pumping out the sandstone slurry in the casing to a slag collecting pool;
(5) the pile casing sinks continuously: and repeating the operations of sinking the pile casing and discharging the sand and stone until the top of the pile casing sinks to a specified elevation.
By adopting the technical scheme, the soil body below the protective sleeve is flushed by high-pressure water flow, the soil body is flushed into slurry, and the slurry is pumped out, so that the protective sleeve sinks under the dead weight, the manual excavation of soil below is omitted, the workload of constructors is saved, and the sinking construction efficiency of the open caisson is improved.
In summary, the present application includes at least one of the following beneficial technical effects:
1. after the protection barrel is installed on the ground, a constructor flushes the ground inside the protection barrel through the spray head group to mix soil and water into slurry, the protection barrel sinks under the action of self weight after the soil below the protection barrel is loose, then the slurry in the protection barrel is pumped into a slag collecting pool through a sand pump, and continuous operation is repeated, so that the protection barrel sinks to the elevation, manpower is saved, and the open caisson construction efficiency is improved;
2. when the sprayer group is started to scour the ground below the protective sleeve, the outer sprayer and the inner sprayer are started at the same time, the outer sprayer is used for intensively scouring the ground right below the protective sleeve to enable the protective sleeve to sink quickly, after the protective sleeve sinks to a proper height, the outer sprayer is closed, the inner sprayer and the slurry pumping pipe continue to operate, the slurry pumping pipe can fully pump out soil in the protective sleeve, the protective sleeve descends stably, and the operation is convenient;
3. constructor orders about the collar and drives outer shower nozzle and protect a reciprocating motion of section of thick bamboo edge after starting drive arrangement, makes outer shower nozzle can evenly erode the soil body below protecting a section of thick bamboo, makes the each side of protecting a section of thick bamboo sink evenly, improves and protects a section of thick bamboo and sink in-process straightness effect and keep.
Drawings
Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.
Fig. 2 is a partial sectional structural schematic diagram of an embodiment of the present application.
Fig. 3 is a partially enlarged schematic view of a portion a in fig. 2.
Fig. 4 is a partial cross-sectional structural schematic view of another perspective of the present application.
Fig. 5 is a partially enlarged schematic view of a portion B in fig. 4.
Description of reference numerals: 1. protecting the cylinder; 2. a support; 21. a lifting frame; 22. a rotating shaft; 23. a cam; 24. a second drive source; 25. a spring; 3. a nozzle group; 31. an inner spray head; 32. an outer nozzle; 4. a slurry pumping pipe; 41. a slag collecting tank; 42. a sand pump; 5. a stirring device; 51. rotating the rod; 52. a drill bit; 53. a first drive source; 6. a mounting ring; 61. a drive device; 611. a ring gear; 612. a gear; 613. a third drive source; 7. a blade foot; 8. a guide frame; 81. and a guide roller.
Detailed Description
The present application is described in further detail below with reference to figures 1-5.
The embodiment of the application discloses excavation-free construction equipment for green urban underground structures. Referring to fig. 1 and 2, the device comprises a casing 1 and a guide frame 8. The pile casing 1 is vertically placed on the ground, and the guide frame 8 is fixedly installed on the ground by using the embedded bolts. The guide frame 8 is positioned outside the pile casing 1, a guide roller 81 is rotatably mounted on the side wall of the guide frame 8 close to the pile casing 1, and the axis of the guide roller 81 is horizontal. The guide rollers 81 are arranged in at least two rows, which may be three rows or four rows, on the guide frame 8 in parallel along the vertical direction. In this embodiment, the guide rollers 81 are provided in two rows, and the side walls of the guide rollers 81 are in sliding contact with the outer wall of the casing 1. The guide frame 8 is arranged on the periphery of the protection tube 1, and a plurality of three or four guide frames are arranged at even intervals along the circumferential direction of the protection tube 1. The protection tube 1 is clamped by the guide frames 8 together, so that the protection tube 1 can be guided linearly.
Referring to fig. 1 and 2, the outer wall of the casing 1 is made of a metal cylinder with a middle interlayer, and concrete is filled in the interlayer of the metal cylinder. The bottom of the protective cylinder 1 is provided with a cutting edge 7 along the circumferential direction, and the cutting edge 7 is close to the inner side of the protective cylinder 1. The side wall of the blade foot 7 close to the inner side of the protective cylinder 1 is coaxial and coplanar with the inner wall of the protective cylinder 1, the side wall of the blade foot 7 close to the outer side of the protective cylinder 1 is a bucket-shaped inclined plane, and when the protective cylinder 1 sinks, soil under the side wall of the protective cylinder 1 is squeezed to the outer side of the protective cylinder 1.
Referring to fig. 2 and 3, the inner wall of the protective barrel 1 is close to the bottom of the protective barrel 1, the lug plates are welded along the circumferential direction of the lug plates, the bracket 2 is detachably mounted on the lug plates through bolts, the bracket 2 is in a horizontal disc shape, the middle of the bracket is hollow, and the bracket 2 is internally provided with a grid bracket body for supporting. The bracket 2 is provided with a nozzle group 3 with a downward water outlet, and in this embodiment, the nozzle group 3 includes an outer nozzle 32 and an inner nozzle 31. The inner spray heads 31 are multiple and are uniformly arranged and installed on the grid frame body on the support 2, the water outlet ports of the inner spray heads are vertically downward, the water inlet ports of the inner spray heads are connected to the same first water inlet pipeline, the first water inlet pipeline is externally connected with a tap water pipe, and a first valve used for opening and closing the first water inlet pipeline is installed on the first water inlet pipeline.
Referring to fig. 2 and 3, a mounting ring 6 coaxial with the casing 1 is rotatably mounted on the bottom wall of the support 2, the outer nozzles 32 are fixedly mounted on the mounting ring 6, and a plurality of the outer nozzles 32 are uniformly arranged at intervals along the circumferential direction of the mounting ring 6, and may be four or six. The water outlet port of the outer nozzle 32 faces downwards vertically, the water inlet port of the outer nozzle 32 is connected to another second water inlet pipeline through a hose, the second water inlet pipeline is externally connected with a tap water pipe, and a second valve for opening and closing the second water inlet pipeline is installed on the second water inlet pipe.
Referring to fig. 2 and 3, in order to drive the mounting ring 6 to rotate back and forth on the bracket 2, so that the outer nozzle 32 uniformly washes the edge position of the bottom wall in the casing 1, a driving device 61 for driving the mounting ring 6 to rotate back and forth is arranged on the bracket 2. In the present embodiment, the driving device 61 includes a ring gear 611, a gear 612, and a third driving source 613. The third driving source 613 is a servo motor, the servo motor is fixedly mounted on the bracket 2 by bolts, the gear ring 611 is coaxially welded and fixed on the mounting ring 6, the teeth of the gear ring 611 face inward, the gear 612 is coaxially and fixedly sleeved on the output shaft of the servo motor, and the gear 612 is meshed with the gear ring 611. The output shaft of the servo motor rotates forward and backward to drive the mounting ring 6 to rotate back and forth on the bracket 2, so that soil under the side wall of the pile casing 1 is uniformly washed away, and the pile casing 1 sinks stably.
Referring to fig. 1 and 2, the inner wall of the casing 1 is also fixedly provided with a slurry pumping pipe 4 through a pipe hoop, and a slag collecting pool 41 is excavated in advance on the ground. One end of the slurry pumping pipe 4 extends into the protective cylinder 1, the end part of the slurry pumping pipe is lower than the water outlet end of the nozzle group 3 and higher than the bottom end of the protective cylinder 1, and the other end of the slurry pumping pipe 4 extends into the slag collecting pool 41. A sand pump 42 is installed on the ground, a sand inlet port of the sand pump 42 faces the interior of the casing 1, and a sand outlet port faces the slag collecting tank 41.
Referring to fig. 3 and 4, in order to rapidly mix the soil body and water inside the casing 1 into slurry, a plurality of stirring devices 5 are uniformly arrayed at the bottom of the support 2, and in this embodiment, each stirring device 5 comprises a rotating rod 51, a drill 52 and a first driving source 53. Above the support 2, be equipped with the crane 21 the same with dwang 51 quantity, the even array of crane 21 is arranged on the grid support body on support 2. The lifting frame 21 can be arranged in 3-by-3 mode or 4-by-4 mode, so that the soil in the inner area of the pile casing 1 can be uniformly stirred by the drill bit 52, the stirring rod and the like on the lifting frame 21. The vertical welding has the guide bar on the diapire of crane 21, sets up the guiding hole with the guide bar looks adaptation on the support 2, and the guide bar vertical slip is worn to establish in the guiding hole. Dwang 51 rotates and installs on crane 21, and dwang 51's axis is vertical, sets up the through-hole that supplies dwang 51 to pass on the support 2, and dwang 51 passes the through-hole to move about in the through-hole. The drill bit 52 is fixedly connected to the bottom end of the rotating rod 51 through a bolt and is positioned below the bracket 2, and when the drill bit 52 is worn, the drill bit 52 can be detached from the rotating rod 51 and replaced at any time. The first driving source 53 is a first motor, the first motor is fixedly mounted on the lifting frame 21 by bolts, and an output shaft of the first motor is driven by the gear 612 to drive the rotating rod 51 to rotate.
Referring to fig. 3 and 4, in order to improve the stirring effect of the drill 52 on the soil mass and enable the drill 52 to better break open the soil mass during the sinking process of the casing 1 and the support 2, the support 2 is provided with a lifting device for driving the lifting frame 21 to reciprocate. The lifting device in this embodiment includes a second driving source 24, a cam 23, and a spring 25. The second driving source 24 is a second motor, the second motor is fixedly mounted on the bracket 2 by bolts, an output shaft of the second motor is horizontal, the output shaft is coaxially and fixedly sleeved with a rotating shaft 22, and two ends of the rotating shaft 22 are rotatably mounted on the bracket 2 through bearing seats. The rotating shafts 22 are arranged on the bracket 2 in parallel in rows according to the arrangement form of the lifting frames 21, and the rows correspond to the rows of the lifting frames 21 one by one. The cam 23 is fixedly sleeved on the rotating shaft 22, and the central line of the cam 23 is parallel to the axis of the rotating shaft 22. The outer wall of the cam 23 is in sliding contact with the bottom wall of the lifting frame 21, the spring 25 is used for pulling the lifting frame 21 to descend, one end of the spring 25 is fixedly connected to the support 2, and the other end of the spring 25 is fixedly connected to the bottom wall of the lifting frame 21.
In other embodiments, the stirring device 5 can be a rotating ring, a stirring rod and a scraping blade, the rotating ring is coaxial with the casing 1 and is rotatably arranged on the bottom wall of the bracket 2. The vertical welded fastening of puddler is on the diapire of swivel ring to the puddler is equipped with a plurality ofly along the even interval of swivel ring axis. The scraping pieces are fixedly connected with the stirring rod bolts, and the scraping pieces on the stirring rods are fixed on the stirring rods in the same direction along the rotating direction of the rotating ring. The bracket 2 is provided with a rotating mechanism which drives the rotating ring to rotate.
The implementation principle of the excavation-free construction equipment for the green city underground structures in the embodiment of the application is as follows: after the protective cylinder 1 is installed on the ground, a constructor firstly starts the outer spray head 32 and the inner spray head 31 at the same time, and the outer spray head 32 washes the ground under the protective cylinder 1 heavily, so that the protective cylinder 1 sinks quickly under the action of self weight. In the sinking process of the pile casing 1, the first motor is started to drive the drill bit 52 to rotate, and soil and water in the pile casing 1 are stirred to be mixed into a slurry-water mixed state. When the casing 1 sinks to a proper height, the outer spray head 32 is firstly closed, the inner spray head 31 and the slurry pumping pipe 4 continue to operate, and slurry water in the casing 1 is pumped to the slag collecting tank 41. After the slurry is completely pumped, the outer spray head 32 is continuously opened to wash, and the continuous operation is repeated, so that the protective cylinder 1 can sink continuously until the top of the protective cylinder 1 sinks to the elevation. The manual excavation of earth and stones by constructors is omitted, manpower is saved, and the open caisson construction efficiency is improved.
The embodiment of the application also discloses a green city underground structure excavation-free construction process.
The method comprises the following steps:
(1) preparation work: leveling the field, pre-digging a slag collecting pool 41, and measuring and positioning;
(2) the protecting cylinder 1 is in place: excavating a positioning shallow pit, installing a guide frame 8 around the positioning shallow pit, hoisting the protective cylinder 1 in place through a crane, and inserting the protective cylinder into the positioning shallow pit;
(3) the pile casing 1 sinks: starting the outer spray head 32 and the inner spray head 31 at the same time, flushing water to the bottom of the protective barrel 1, loosening the ground at the bottom of the protective barrel 1 to ensure that the protective barrel 1 uniformly sinks under the action of self weight, stopping the outer spray head 32 after the protective barrel 1 sinks to a specified height, and continuously adding water to soil in the inner area of the protective barrel 1 for stirring;
(4) discharging sand and stone: stirring the soil body in the casing 1 to slurry, and after sampling is proper, pumping the sandstone slurry in the casing 1 out to a slag collecting pool 41;
(5) the pile casing 1 sinks continuously: and repeating the operations of sinking the pile casing 1 and discharging the sand and stone until the top of the pile casing 1 sinks to a specified elevation.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (9)
1. The utility model provides a green city underground structure exempts from to excavate construction equipment, includes protects a section of thick bamboo (1), its characterized in that: the inside demountable installation that protects a section of thick bamboo (1) has support (2), be provided with shower nozzle group (3) that are used for erodeing the open caisson diapire on the diapire of support (2), the external water source of water inlet port of shower nozzle group (3), be provided with slurry pumping pipe (4) on the inner wall of protecting a section of thick bamboo (1), the one end of slurry pumping pipe (4) is located the below of the water outlet end of shower nozzle group (3), the external album of cinder pond of the other end (41), be provided with sand pump (42) on slurry pumping pipe (4), the sand inlet end intercommunication of sand pump (42) is to protecting in a section of thick bamboo (1), the bottom of support (2) is provided with a plurality of agitating unit (5).
2. The green city underground structure excavation-free construction equipment as claimed in claim 1, wherein: agitating unit (5) are including dwang (51), drill bit (52) and first drive source (53), the vertical rotation of dwang (51) sets up on support (2), drill bit (52) set firmly the bottom at dwang (51), first drive source (53) set up and are used for driving dwang (51) to rotate on support (2).
3. The green city underground structure excavation-free construction equipment as claimed in claim 2, wherein: a plurality of lifting frames (21) are arranged on the bracket (2) in a sliding way along the vertical direction, the rotating rod (51) is rotationally connected to the lifting frame (21), the first driving source (53) is fixedly arranged on the lifting frame (21), a rotating shaft (22) is horizontally arranged on the bracket (2), two ends of the rotating shaft (22) are rotatably connected with the bracket (2), a second driving source (24) for driving the rotating shaft (22) to rotate is fixedly arranged on the bracket (2), a cam (23) is fixedly arranged on the rotating shaft (22), the side wall of the cam (23) is in sliding contact with the horizontal plate surface of the lifting frame (21), a spring (25) for driving the lifting frame (21) to be close to the cam (23) is arranged on the bracket (2), one end of the spring (25) is fixedly connected with the lifting frame, and the other end of the spring is fixedly connected with the lifting frame (21).
4. The green city underground structure excavation-free construction equipment as claimed in claim 1, wherein: shower nozzle group (3) are including interior shower nozzle (31) and outer shower nozzle (32), outer shower nozzle (32) set up and are close to the border of protecting a section of thick bamboo (1) inner wall in support (2), the vertical decurrent of the play water port of outer shower nozzle (32), outer shower nozzle (32) are provided with a plurality ofly along protecting a section of thick bamboo (1) even interval of circumference, interior shower nozzle (31) are provided with a plurality ofly on the diapire of support (2) even array, interior shower nozzle (31) are located outer shower nozzle (32) are inboard, the play water port of interior shower nozzle (31) is vertical decurrent.
5. The green city underground structure excavation-free construction equipment as claimed in claim 4, wherein: the rotary type spray gun is characterized in that a mounting ring (6) is rotatably arranged on the bottom wall of the support (2), the mounting ring (6) is coaxial with the protective cylinder (1), the outer spray head (32) is arranged on the mounting ring (6), and a driving device (61) used for driving the mounting ring (6) to rotate in a reciprocating mode is arranged on the support (2).
6. The green city underground structure excavation-free construction equipment as claimed in claim 5, wherein: the driving device (61) comprises a gear ring (611), a gear (612) and a third driving source (613), wherein the gear ring (611) is coaxially fixed on the inner wall of the mounting ring (6), the gear (612) is meshed with the gear ring, the third driving source (613) is fixed on the bracket (2), and the third driving source (613) drives the gear (612) to rotate.
7. The green city underground structure excavation-free construction equipment as claimed in claim 4, wherein: the lower end of the protective cylinder (1) is provided with a cutting edge (7), and the cutting edge (7) is close to the inner side of the protective cylinder (1).
8. The green city underground structure excavation-free construction equipment as claimed in claim 1, wherein: still include guide frame (8), guide frame (8) set up subaerial, it is provided with guide roll (81) to rotate on the inner wall of guide frame (8), guide roll (81) are provided with two rows at least along the even interval of vertical direction, guide roll (81) are provided with the multiunit along protecting a section of thick bamboo (1) circumference even interval, the outer wall of guide roll (81) and the outer wall sliding contact who protects a section of thick bamboo (1).
9. A green city underground structure excavation-free construction process comprises the green city underground structure excavation-free construction equipment of any one of claims 1-8, and is characterized by comprising the following steps:
(1) preparation work: leveling a field, and measuring and positioning;
(2) the pile casing (1) is in place: excavating a positioning shallow pit, and hoisting the pile casing (1) in place;
(3) the pile casing (1) sinks: the bottom of the protective barrel (1) is flushed with water to loosen the ground at the bottom of the protective barrel (1), so that the protective barrel (1) uniformly sinks under the action of self weight, and soil in the inner area of the protective barrel (1) is added with water and stirred;
(4) discharging sand and stone: pumping out the sandstone slurry in the casing (1) to a slag collecting pool (41);
(5) the pile casing (1) sinks continuously: and repeating the operations of sinking and discharging the sand and the stone of the pile casing (1) until the top of the pile casing (1) sinks to a specified elevation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011631313.9A CN112854273B (en) | 2020-12-31 | 2020-12-31 | Excavation-free construction process and equipment for green urban underground structures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011631313.9A CN112854273B (en) | 2020-12-31 | 2020-12-31 | Excavation-free construction process and equipment for green urban underground structures |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112854273A true CN112854273A (en) | 2021-05-28 |
| CN112854273B CN112854273B (en) | 2024-01-05 |
Family
ID=75999865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011631313.9A Active CN112854273B (en) | 2020-12-31 | 2020-12-31 | Excavation-free construction process and equipment for green urban underground structures |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112854273B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113529713A (en) * | 2021-08-03 | 2021-10-22 | 何雪平 | Hydraulic engineering pile casing embedding device and construction method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102155020A (en) * | 2011-01-28 | 2011-08-17 | 福建工程学院 | Open caisson construction method of reinforced concrete for soft soil layer |
| CN106168033A (en) * | 2016-08-09 | 2016-11-30 | 岩土科技股份有限公司 | A kind of vertical mud and water balance constructing device |
| CN207032272U (en) * | 2017-03-24 | 2018-02-23 | 中铁大桥局集团第二工程有限公司 | A kind of clear based devices of large-scale well-sinking water jetting at high pressure |
| CN207453874U (en) * | 2017-11-28 | 2018-06-05 | 中铁上海设计院集团有限公司 | One kind is from breast wall type Piles in Karst Region base pore-forming equipment |
| CN110805053A (en) * | 2019-11-05 | 2020-02-18 | 武汉市市政建设集团有限公司 | Construction method of deep foundation pit open caisson self-sinking supporting system |
| CN212200479U (en) * | 2020-03-07 | 2020-12-22 | 四川鼎恒建设工程有限公司 | Water conservancy is towards sinking open caisson construction equipment |
-
2020
- 2020-12-31 CN CN202011631313.9A patent/CN112854273B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102155020A (en) * | 2011-01-28 | 2011-08-17 | 福建工程学院 | Open caisson construction method of reinforced concrete for soft soil layer |
| CN106168033A (en) * | 2016-08-09 | 2016-11-30 | 岩土科技股份有限公司 | A kind of vertical mud and water balance constructing device |
| CN207032272U (en) * | 2017-03-24 | 2018-02-23 | 中铁大桥局集团第二工程有限公司 | A kind of clear based devices of large-scale well-sinking water jetting at high pressure |
| CN207453874U (en) * | 2017-11-28 | 2018-06-05 | 中铁上海设计院集团有限公司 | One kind is from breast wall type Piles in Karst Region base pore-forming equipment |
| CN110805053A (en) * | 2019-11-05 | 2020-02-18 | 武汉市市政建设集团有限公司 | Construction method of deep foundation pit open caisson self-sinking supporting system |
| CN212200479U (en) * | 2020-03-07 | 2020-12-22 | 四川鼎恒建设工程有限公司 | Water conservancy is towards sinking open caisson construction equipment |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113529713A (en) * | 2021-08-03 | 2021-10-22 | 何雪平 | Hydraulic engineering pile casing embedding device and construction method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112854273B (en) | 2024-01-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110984852B (en) | Triaxial stirring stake machine with function of rectifying | |
| CN108005085B (en) | Foundation pit supporting structure and construction method thereof | |
| CN107338789B (en) | A kind of construction method of down-the-hole percussion triple-pipe high pressure jet grouting stake | |
| CN109183803A (en) | A kind of deep basal pit adverse construction method device and construction method | |
| CN113404428A (en) | Stirring stake construction equipment of two-way stirring | |
| CN112854273A (en) | Excavation-free construction process and construction equipment for green urban underground structures | |
| CN112177081B (en) | Scouring device with anti-subsidence structure arranged on river channel sludge and implementation method thereof | |
| CN113356211A (en) | Cast-in-place pile hole dredging device for civil engineering construction | |
| CN218030114U (en) | Device for removing pile hole sediment of cast-in-place pile | |
| CN106592514A (en) | Construction method of old city riverway piling wall integrated vertical type retaining wall | |
| CN215408455U (en) | Stirring stake construction equipment of two-way stirring | |
| KR100829872B1 (en) | Enterance vertical manhole structure propulsion and replacement construction methods and devices | |
| CN211973547U (en) | Sinking construction equipment without water drainage for open caisson | |
| CN104404953B (en) | Cast-in-place concrete pile bubble is eliminated and is built device | |
| CN215715441U (en) | Excavation-free construction equipment for green urban underground structures | |
| CN209128999U (en) | A kind of deep basal pit adverse construction method device | |
| CN221501989U (en) | Bored pile dredging device | |
| CN220599718U (en) | Rectangular slide-resistant pile drilling machine with step-by-step type size variable and horizontal cantilever | |
| CN219033216U (en) | Bored pile dredging device | |
| CN220599704U (en) | Gasbag dado formula rectangle slide-resistant stake drilling machine | |
| CN220599716U (en) | Rectangular slide-resistant pile drilling machine with armpit horizontal cantilever and step-by-step type size variable | |
| CN220580957U (en) | Rectangular deep hole drilling machine with horizontal cantilever and step-by-step type structure adapting to soil stratum | |
| CN220580958U (en) | Rectangular shallow hole drill with horizontal cantilever step by step and suitable for soil stratum | |
| CN220580953U (en) | Drill bit diversion rectangular deep hole drilling machine suitable for soil stratum | |
| CN220645826U (en) | Step-by-step rectangular shallow hole drill with haunching horizontal cantilever and suitable for soil stratum |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |