CN109487843A - A kind of underwater open caisson development machine and its construction method - Google Patents
A kind of underwater open caisson development machine and its construction method Download PDFInfo
- Publication number
- CN109487843A CN109487843A CN201811525012.0A CN201811525012A CN109487843A CN 109487843 A CN109487843 A CN 109487843A CN 201811525012 A CN201811525012 A CN 201811525012A CN 109487843 A CN109487843 A CN 109487843A
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- open caisson
- underwater
- sealed compartment
- development machine
- arm
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
- E02D7/28—Placing of hollow pipes or mould pipes by means arranged inside the piles or pipes
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
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- 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
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
- E02F3/8808—Stationary installations, e.g. installations using spuds or other stationary supports
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
- E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
- E02F3/907—Measuring or control devices, e.g. control units, detection means or sensors
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Earth Drilling (AREA)
- Underground Or Underwater Handling Of Building Materials (AREA)
Abstract
The invention discloses a kind of underwater open caisson development machine and its construction method, solves the problem of open caisson development machine in the prior art excavates low efficiency, outline excavation is difficult to control, is also easy to produce open caisson posture deflection.The present invention includes the support base being arranged in vertical shaft lower member, support base is connected with lifting device, the support base is equipped with sealed compartment, sealed compartment is equipped with plasma discharge system, support shoe apparatus is connected on the outer wall of sealed compartment, the lower part of sealed compartment is equipped with swing mechanism, and swing mechanism is equipped with boring mechanism, boring mechanism is equipped with lower discharge pipe, and lower discharge pipe is connected with plasma discharge system.The present invention realizes mechanization and controllably excavates, ensure that open caisson posture is accurate, underwater operation degree of controllability is high, it improves and excavates efficiency, solve the problems, such as that excavation situation is uncontrollable in traditional water, open caisson posture is uncontrollable, the high quality construction operation of warehouse open caissons more for open caisson especially super-section has significance.
Description
Technical field
The present invention relates to submerged tunnel technical field of construction, a kind of underwater open caisson development machine and its construction party are particularly related to
Method.
Background technique
Underwater open caisson development machine is that a kind of special engineering is mechanical, has and excavates underwater ground, discharge mud mixture, opens
Contour detecting control is dug, it is more to be related to geology, building, machinery, hydraulic, control, measurement etc. for the functions such as open caisson depth and attitude detection
Door subject technology.
Currently, the bridge pier of large-scale bridge of paddling, is constructed using more storehouse drop shaft sinkings, and it is at low cost, it is high-quality.But conventional simple type
Jiao Xi mechanism, position control end is on well, and distance is flexible big, and support reaction is small, and excavation low efficiency, outline excavation are not allowed easily-controllable
System is easy to produce open caisson posture skew problems, and then influences construction efficiency.
Summary of the invention
For the deficiency in above-mentioned background technique, the present invention proposes a kind of underwater open caisson development machine and its construction method, solution
The problem of open caisson development machine in the prior art of having determined excavates low efficiency, outline excavation is difficult to control, is also easy to produce open caisson posture deflection.
The technical scheme of the present invention is realized as follows: a kind of underwater open caisson development machine, including be arranged in vertical shaft lower part structure
Support base in part, support base are connected with lifting device, and the support base is equipped with sealed compartment, and sealed compartment is equipped with plasma discharge system
It unites, support shoe apparatus is connected on the outer wall of sealed compartment, the lower part of sealed compartment is equipped with swing mechanism, and swing mechanism is equipped with development machine
Structure, boring mechanism are equipped with lower discharge pipe, and lower discharge pipe is connected with plasma discharge system.
The plasma discharge system includes mixer and swivel joint, and the top of sealed compartment is arranged in mixer, and swivel joint is set
It sets inside sealed compartment, discharge pipe and air pipe is connected on mixer, upper discharge pipe and air pipe are upward through support base,
The lower part of upper discharge pipe is connected with swivel joint, and swivel joint is connected by flexible pipe with lower discharge pipe.
The swing mechanism includes revolving bed, and revolving bed is connected to the lower part of sealed compartment, is equipped with revolution driving in sealed compartment
Device, device for revolving and driving are connected with revolving bed and revolving bed are driven to rotate, and boring mechanism is mounted on revolving bed.
The boring mechanism includes at least one working arm, and working arm is connected by swing arm oil cylinder with revolving bed, work
Telescopic arm is arranged in arm, telescopic arm is connected by telescopic oil cylinder with working arm, and the front end of telescopic arm is equipped with twisting sucker head.
The side of the working arm is equipped with flexible mud tube, and one end of flexible mud tube is connected with lower discharge pipe, is another
It holds corresponding with twisting sucker head.
Twisting sucker head driving device is equipped in the working arm, twisting sucker head is connected with twisting sucker head driving device, and twisting sucker head drives
Dynamic device provides power for the rotation of twisting sucker head；The swing arm oil cylinder is equipped with sensor.
Shoe apparatus is supportted circumferentially arranged with several on the outer wall of the sealed compartment, supports and is equipped with biography on shoe apparatus and revolving bed
Sensor.
The support shoe apparatus includes outer sleeve and inner sleeve, and outer sleeve is connected on the outer wall of sealed compartment, and inner sleeve is located at
It is connected inside outer sleeve and by support boots oil cylinder with outer sleeve, the outer end face of outer sleeve is equipped with support boots plate.
A kind of construction method of underwater open caisson development machine, includes the following steps: S1: using towboat or large-scale floating crane by open caisson
Lower member is placed in design coordinate position, carries out anchor cable accurate positioning as needed, injects in the cavity of open caisson lower member
Concrete, under the effect of gravity, open caisson lower member are tentatively sunk；
S2: on the water on workbench, hanging in underwater open caisson development machine in open caisson lower member under the action of lifting device,
Lifting device lifts underwater open caisson development machine using duplex type, and posture is called in control, so that support is located in open caisson lower member default
Inner wall cushion cap on；Power station and control room are placed on aquatic work platform, connect service line and control pipeline, connection row
It starches and calms the anger pipeline.
S3: control support shoe apparatus stretches out, and stretching starts the air compressor machine on aquatic work platform, compressed air on the borehole wall
Enter mixer along air pipe, form bubble in mud channel, in mud channel inside and outside under the action of density contrast, in open caisson
Water body rise along mud channel, and pit shaft is discharged, establishes muddy water circulation；Open caisson pit shaft outside body of water is by reserving on the borehole wall
Hole can enter pit shaft.
S4: starting twisting sucker head, twisting sucker head cut water-bed ground for little particle, and in open caisson during rotation
Water body the flexible mud tube for flowing into twisting sucker head side in, with muddy water circulation be expelled to outside open caisson；Control swing arm oil
The stretching of cylinder adjusts the working radius of twisting sucker head, and the revolving bed for controlling swing mechanism carries out rotary motion, drives working arm along week
To rotation, the ground inhaled and machine away lower part in pit shaft is twisted；
S5: control working arm stretches out, and repeats step S4, opens ground at lower part deep layer in open caisson and lower wellbore blade foot
It digs；According to sensor feedback information, it is consistent to control open caisson periphery excavated volume；Complete stepping excavated volume after, shrink telescopic oil cylinder and
Swing arm oil cylinder, is retracted to telescopic arm in working arm；
S6:, which filling water body, applies inside to open caisson lower member or at an upper portion thereof ballast, and control open caisson sinks steadily, removes top
Pipeline installs pit shaft additional on open caisson top, completes the sinking of a section pit shaft；
S7: repeating step S4 ~ S6, completes whole well sinking operations；
S8: retracting working arm, shrinks swing arm oil cylinder, retracts support shoe apparatus, removes upper pipeline, using lifting device by underwater work
Make device integrally to hang out, fills concrete to shaft bottom using conduit, carry out the underwater back cover of open caisson, complete digging operation.
The present invention excavates underwater ground using twisting sucker head, is mixed the muddy water of cutting by way of gas lift reverse circulation
It closes outside object discharge well, twisting sucker head is mounted on telescopic arm, is radially wobbled by the control of swing arm oil cylinder, working arm is mounted on revolution
On seat, rotary motion is carried out by revolving bed, and working arm has Telescopic, to realize twisting sucker head to the entire of open caisson
The covering of excavation face.Sensor is installed on support shoe apparatus, swing arm oil cylinder and revolving bed, it can be with the outline excavation in monitoring well.This
Invention realizes mechanization and controllably excavates, it is ensured that open caisson posture is accurate, and underwater operation degree of controllability is high, improves and excavates efficiency, solves
The problem that situation is uncontrollable, open caisson posture is uncontrollable is excavated in traditional water, for the more warehouses of open caisson especially super-section
The high quality construction operation of open caisson has significance.
Detailed description of the invention
In order to illustrate the embodiments of the present invention more clearly, attached drawing needed in describing below to embodiment makees letter
Singly introduce, it should be apparent that, drawings in the following description are only some embodiments of the invention, skill common for this field
For art personnel, without creative efforts, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is overall structure of the present invention.
Fig. 2 is schematic top plan view of the present invention.
Fig. 3 is support shoe apparatus and boring mechanism and sealed compartment attachment structure schematic diagram.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under that premise of not paying creative labor
Embodiment shall fall within the protection scope of the present invention.
Embodiment 1, as shown in Figs. 1-2, a kind of underwater open caisson development machine, including the branch being arranged in vertical shaft lower member 2
Seat 5 is supportted, support base is arranged on the preset cushion cap of open caisson lower member, and support base 5 is connected with lifting device, and lifting device can
Using gantry crane or large-scale floating crane, support base is lifted using duplex type by wirerope 7, posture is called in control, is located in support
On the preset cushion cap of open caisson lower member, pumping plant and control room are placed on open caisson top.Support base top connecting steel wire ropes, support
After boots and working arm retract, complete equipment can quickly be hung out by the wirerope.5 lower part of support base is equipped with sealed compartment
11, sealed compartment 11 is equipped with plasma discharge system, support shoe apparatus 12 is connected on the outer wall of sealed compartment 11, support shoe apparatus is along gas-tight silo week
Side arrangement, is arranged multiple groups, plays the role of stabilized seal cabin.The lower part of sealed compartment 11 is equipped with swing mechanism, sets on swing mechanism
There is boring mechanism, boring mechanism realizes the rotation of itself by swing mechanism, has the function that cover excavation area, boring mechanism
It is equipped with lower discharge pipe 18, lower discharge pipe 18 is connected with plasma discharge system, by the muddy water of cutting by way of gas lift reverse circulation
Mixture is discharged outside well.
Further, the plasma discharge system includes mixer 10 and swivel joint 19, and sealed compartment 11 is arranged in mixer 10
Top, swivel joint 19 are arranged in the bottom inside sealed compartment 11, discharge pipe 8 and air pipe 9 are connected on mixer 10, on
Discharge pipe 8 and air pipe 9 are upward through support base 5, and extend to outside open caisson, the lower part of upper discharge pipe 8 and swivel joint 19
It is connected, swivel joint 19 is connected by flexible pipe with lower discharge pipe 18.Lower discharge pipe 18, swivel joint 19 and upper discharge pipe
8 composition mud channels, the mud for being discharged in open caisson.Swivel joint is installed, upper discharge pipe is from gas-tight silo top in gas-tight silo
Access, is picked out by swivel joint from gas-tight silo lower part, and be attached with the lower discharge pipe on working arm by flexible conduit.
The swing mechanism includes revolving bed 13, and revolving bed 13 is connected to the lower part of sealed compartment 11, is equipped with revolution driving in sealed compartment 11
Device, device for revolving and driving are connected with revolving bed 13 and revolving bed 13 are driven to rotate, and boring mechanism is mounted on revolving bed 13.
Device for revolving and driving drives boring mechanism to carry out rotary motion by revolving bed 13.Power and control pipeline are connect by seal nipple
Enter in sealed compartment, installation control box, lubricating arrangement and distribution valve group in sealed compartment.
Embodiment 2, as shown in figure 3, a kind of underwater open caisson development machine, the boring mechanism include at least one working arm
14, working arm 14 it is settable one or two, quantity is arranged according to digging diameter.When one working arm 14, working arm setting
In the center of revolving bed；Working arm 14 is connected by swing arm oil cylinder 15 with revolving bed 13, realizes work by swing arm oil cylinder
Make radially wobbling for arm, telescopic arm 20 is arranged in working arm 14, telescopic arm 20 is connected by telescopic oil cylinder 21 with working arm 14
It connects, the front end of telescopic arm 20 is equipped with twisting sucker head 17.The flexible of working arm is realized by telescopic oil cylinder, changes digging diameter.It is above-mentioned
The compound motion of mechanism can control twisting sucker head to round, rectangular section open caisson lower part ground 1 excavation.
Further, the side of the working arm 14 is equipped with flexible mud tube 16, and the mud tube 16 that stretches uses flexible pipe, is stretching
Its Telescopic is realized under the action of contracting arm, one end of flexible mud tube 16 is connected with lower discharge pipe 18, the other end and strand are inhaled
First 17 is corresponding, i.e., absorbs the ground that twisting sucker head is cut in time.It is equipped with twisting sucker head driving device in the working arm 14, is twisted
Suction nozzle 17 is connected with twisting sucker head driving device, and twisting sucker head driving device provides power for the rotation of twisting sucker head 17, drives to twist and inhale
Head rotation, realizes the cutting to rock；The driving of twisting sucker head is mounted on inside working arm, is sealed by gland, sealing structure,
Drive the shaft end of twisting sucker head that sealing structure waterproof is set.The swing arm oil cylinder 15 is equipped with sensor.Outside the sealed compartment 11
Shoe apparatus 12 is supportted circumferentially arranged with several on wall, supports and is equipped with sensor on shoe apparatus 12 and revolving bed 13, it can be with monitoring well
Interior outline excavation adjusts, it is ensured that outline excavation in time.
Further, the support shoe apparatus 12 includes outer sleeve 121 and inner sleeve 122, and outer sleeve 121 is connected to sealed compartment 11
Outer wall on, inner sleeve 122 is located at the inside of outer sleeve 121 and is connected by supportting boots oil cylinder 123 with outer sleeve 121, outer sleeve
121 outer end face is equipped with support boots plate 124, and support boots plate increases forced area, reduce pressure, outside for withstanding open caisson lower member
There is oil cylinder connection between portion's sleeve and inner support, under the action of oil cylinder, inner sleeve 122 can be stretched out relative to outer sleeve 121
Or it retracts.
Other structures are same as Example 1.
A kind of embodiment 3, construction method of underwater open caisson development machine, includes the following steps: S1: floating using towboat or large size
It hangs and open caisson lower member 2 is placed in design coordinate position, anchor cable accurate positioning is carried out as needed, in open caisson lower member 2
Concrete is injected in cavity, under the effect of gravity, open caisson lower member 2 is tentatively sunk；
S2: on the water on workbench, underwater open caisson development machine is hung in into open caisson lower member 2 under the action of lifting device
In, lifting device lifts underwater open caisson development machine using duplex type, and control calls in posture, support base 5 is made to fall in open caisson lower member 2
On preset inner wall cushion cap；Power station and control room are placed on aquatic work platform, connect service line and control pipeline, even
Run in slurry and pipeline of calming the anger.
S3: control support shoe apparatus 12 stretches out, and stretching starts the air compressor machine on aquatic work platform on the borehole wall, and compression is empty
Gas enters mixer 10 along air pipe 9, and bubble is formed in mud channel, in mud channel inside and outside under the action of density contrast,
Water body in open caisson rises (flexible mud tube 16, lower discharge pipe, swivel joint, upper discharge pipe formation mud tube along mud channel
Road), and pit shaft is discharged, establish muddy water circulation；Open caisson pit shaft outside body of water can enter pit shaft by the hole reserved on the borehole wall.
S4: water-bed ground cut during rotation as little particle by starting twisting sucker head 17, twisting sucker head 17, and with sinking
Water body in well flows into the flexible mud tube 16 of 17 side of twisting sucker head, is expelled to outside open caisson with muddy water circulation；Control
The stretching of swing arm oil cylinder 15 processed adjusts the working radius of twisting sucker head 17, and the revolving bed 13 for controlling swing mechanism carries out rotary motion,
It drives working arm 14 circumferentially rotatable, twists the ground inhaled and machine away lower part in pit shaft；
S5: control working arm 14 stretches out, and repeats S4 step, opens ground at lower part deep layer in open caisson and lower wellbore blade foot
It digs；According to sensor feedback information, it is consistent to control open caisson periphery excavated volume；After completing stepping excavated volume, telescopic oil cylinder 21 is shunk
With swing arm oil cylinder 15, it is retracted to telescopic arm 20 in working arm 14；
S6:, which filling water body, applies inside to open caisson lower member 2 or at an upper portion thereof ballast, and control open caisson sinks steadily, in dismounting
Portion's pipeline installs pit shaft additional on open caisson top, completes the sinking of a section pit shaft 6；
S7: repeating step S4 ~ S6, completes whole well sinking operations；
S8: retracting working arm 14, shrinks swing arm oil cylinder 15, retracts support shoe apparatus 12, removes upper pipeline, will using lifting device
Underwater operation device is integrally hung out, and is filled concrete to shaft bottom using conduit, is carried out the underwater back cover of open caisson, complete digging operation.
Other structures are same as Example 2.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of underwater open caisson development machine, including the support base (5) being arranged in vertical shaft lower member (2), support base (5) with mention
It rises device to be connected, it is characterised in that: the support base (5) is equipped with sealed compartment (11), and sealed compartment (11) is equipped with plasma discharge system
It unites, support shoe apparatus (12) is connected on the outer wall of sealed compartment (11), the lower part of sealed compartment (11) is equipped with swing mechanism, swing mechanism
It is equipped with boring mechanism, boring mechanism is equipped with lower discharge pipe (18), and lower discharge pipe (18) is connected with plasma discharge system.
2. underwater open caisson development machine according to claim 1, it is characterised in that: the plasma discharge system includes mixer (10)
With swivel joint (19), mixer (10) setting is arranged in the top of sealed compartment (11), swivel joint (19) in sealed compartment (11)
Inside is connected with discharge pipe (8) and air pipe (9) on mixer (10), and upper discharge pipe (8) and air pipe (9) are upward through
The lower part of support base (5), upper discharge pipe (8) is connected with swivel joint (19), and swivel joint (19) passes through flexible pipe and lower row
Slurry pipe (18) is connected.
3. underwater open caisson development machine according to claim 1 or 2, it is characterised in that: the swing mechanism includes revolving bed
(13), revolving bed (13) is connected to the lower part of sealed compartment (11), and device for revolving and driving, revolution driving dress are equipped in sealed compartment (11)
It sets and is connected with revolving bed (13) and revolving bed (13) is driven to rotate, boring mechanism is mounted on revolving bed (13).
4. underwater open caisson development machine according to claim 3, it is characterised in that: the boring mechanism includes at least one work
Make arm (14), working arm (14) is connected by swing arm oil cylinder (15) with revolving bed (13), is arranged in working arm (14) flexible
Arm (20), telescopic arm (20) are connected by telescopic oil cylinder (21) with working arm (14), and the front end of telescopic arm (20), which is equipped with to twist, inhales
Head (17).
5. underwater open caisson development machine according to claim 4, it is characterised in that: the side of the working arm (14), which is equipped with, stretches
Contracting mud tube (16), the one end of flexible mud tube (16) is connected with lower discharge pipe (18), the other end and twisting sucker head (17) are opposite
It answers.
6. underwater open caisson development machine according to claim 4 or 5, it is characterised in that: be equipped with and twist in the working arm (14)
Suction nozzle driving device, twisting sucker head (17) are connected with twisting sucker head driving device, and twisting sucker head driving device is turning for twisting sucker head (17)
It is dynamic that power is provided；The swing arm oil cylinder (15) is equipped with sensor.
7. underwater open caisson development machine according to claim 1 or 4 or 5, it is characterised in that: the outer wall of the sealed compartment (11)
On circumferentially arranged with several support shoe apparatus (12), support and be equipped with sensor on shoe apparatus (12) and revolving bed (13).
8. underwater open caisson development machine according to claim 7, it is characterised in that: the support shoe apparatus (12) includes outer sleeve
(121) it is connected on the outer wall of sealed compartment (11) with inner sleeve (122), outer sleeve (121), inner sleeve (122) is located at outer sleeve
(121) internal and be connected by supportting boots oil cylinder (123) with outer sleeve (121), the outer end face of outer sleeve (121), which is equipped with, supports boots plate
(124).
9. a kind of construction method of underwater open caisson development machine as described in claim 1, characterized by the following steps:
S1: open caisson lower member (2) is placed in by design coordinate position using towboat or large-scale floating crane, it is accurately fixed to carry out anchor cable as needed
Concrete is injected in position in the cavity of open caisson lower member (2), under the effect of gravity, under open caisson lower member (2) carries out tentatively
It is heavy；
S2: on the water on workbench, underwater open caisson development machine is hung in into open caisson lower member (2) under the action of lifting device
In, lifting device lifts underwater open caisson development machine using duplex type, and control calls in posture, support base (5) is made to fall in open caisson lower part structure
On the preset inner wall cushion cap of part (2)；
S3: control support shoe apparatus (12) is stretched out, and stretching starts the air compressor machine on aquatic work platform, compressed air on the borehole wall
Enter mixer (10) along air pipe (9), bubble is formed in mud channel, in the effect of mud channel inside and outside density contrast
Under, the water body in open caisson rises along mud channel, and pit shaft is discharged, and establishes muddy water circulation；
S4: water-bed ground cut during rotation as little particle by starting twisting sucker head (17), twisting sucker head (17), and with sinking
Water body in well flows into the flexible mud tube (16) of twisting sucker head (17) side, is expelled to outside open caisson with muddy water circulation
Portion；Control the stretching of swing arm oil cylinder (15), adjust the working radius of twisting sucker head (17), control the revolving bed (13) of swing mechanism into
Row rotary motion drives working arm (14) circumferentially rotatable, twists the ground inhaled and machine away lower part in pit shaft；
S5: control working arm (14) is stretched out, and is repeated step S4, is carried out to ground at lower part deep layer in open caisson and lower wellbore blade foot
It excavates；According to sensor feedback information, it is consistent to control open caisson periphery excavated volume；After completing stepping excavated volume, telescopic oil cylinder is shunk
(21) and swing arm oil cylinder (15) it is retracted to telescopic arm (20) in working arm (14)；
S6: filling water body inside to open caisson lower member (2) or applies ballast at an upper portion thereof, and control open caisson sinks steadily, removes
Upper pipeline installs pit shaft additional on open caisson top, completes the sinking of a section pit shaft；
S7: repeating step S4 ~ S6, completes whole well sinking operations；
S8: retracting working arm (14), shrinks swing arm oil cylinder (15), retracts support shoe apparatus (12), removes upper pipeline, utilizes promotion
Device integrally hangs out underwater operation device, fills concrete to shaft bottom using conduit, carries out the underwater back cover of open caisson, completes to excavate
Operation.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811525012.0A CN109487843B (en) | 2018-12-13 | 2018-12-13 | Underwater open caisson heading machine and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811525012.0A CN109487843B (en) | 2018-12-13 | 2018-12-13 | Underwater open caisson heading machine and construction method thereof |
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| CN109487843A true CN109487843A (en) | 2019-03-19 |
| CN109487843B CN109487843B (en) | 2023-08-15 |
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Cited By (10)
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| CN110258699A (en) * | 2019-06-11 | 2019-09-20 | 中交第二航务工程局有限公司 | A kind of inner supporting type vertically tunnels drawing out soil equipment |
| CN110528550A (en) * | 2019-08-07 | 2019-12-03 | 中交第二航务工程局有限公司 | The hard soil layer in caisson cutting edge position is broken and slag cleaning device and its construction method |
| CN111139855A (en) * | 2019-12-25 | 2020-05-12 | 孙华章 | Bottom concrete caisson capable of self-weight forced landing and construction method |
| CN111206930A (en) * | 2020-04-08 | 2020-05-29 | 中铁工程装备集团有限公司 | Variable-section vertical shaft excavation equipment and construction method |
| CN111733856A (en) * | 2020-07-02 | 2020-10-02 | 安徽杰智建设工程有限公司 | Open caisson construction method |
| CN111779055A (en) * | 2020-06-29 | 2020-10-16 | 中铁市政环境建设有限公司 | Mud digging device for non-drainage open caisson and use method thereof |
| CN112982529A (en) * | 2021-04-22 | 2021-06-18 | 湖南中天青鼎工程科技股份有限公司 | Efficient and safe tailing pond radiation well digging device and construction process |
| CN113216295A (en) * | 2021-05-20 | 2021-08-06 | 肖磊 | Open caisson dado digging device for power transmission line iron tower |
| CN114908789A (en) * | 2022-06-22 | 2022-08-16 | 同济大学 | Self-sinking and self-supporting device for edge foot of open caisson |
| WO2024113774A1 (en) * | 2022-11-30 | 2024-06-06 | 中铁山河工程装备股份有限公司 | Rectangular vertical shaft boring machine |
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| CN110528550A (en) * | 2019-08-07 | 2019-12-03 | 中交第二航务工程局有限公司 | The hard soil layer in caisson cutting edge position is broken and slag cleaning device and its construction method |
| CN111139855A (en) * | 2019-12-25 | 2020-05-12 | 孙华章 | Bottom concrete caisson capable of self-weight forced landing and construction method |
| CN111206930A (en) * | 2020-04-08 | 2020-05-29 | 中铁工程装备集团有限公司 | Variable-section vertical shaft excavation equipment and construction method |
| CN111206930B (en) * | 2020-04-08 | 2022-04-15 | 中铁工程装备集团有限公司 | Variable-section vertical shaft excavation equipment and construction method |
| CN111779055A (en) * | 2020-06-29 | 2020-10-16 | 中铁市政环境建设有限公司 | Mud digging device for non-drainage open caisson and use method thereof |
| CN111733856A (en) * | 2020-07-02 | 2020-10-02 | 安徽杰智建设工程有限公司 | Open caisson construction method |
| CN111733856B (en) * | 2020-07-02 | 2021-08-03 | 安徽杰智建设工程有限公司 | Open caisson construction method |
| CN112982529A (en) * | 2021-04-22 | 2021-06-18 | 湖南中天青鼎工程科技股份有限公司 | Efficient and safe tailing pond radiation well digging device and construction process |
| CN113216295A (en) * | 2021-05-20 | 2021-08-06 | 肖磊 | Open caisson dado digging device for power transmission line iron tower |
| CN114908789A (en) * | 2022-06-22 | 2022-08-16 | 同济大学 | Self-sinking and self-supporting device for edge foot of open caisson |
| WO2024113774A1 (en) * | 2022-11-30 | 2024-06-06 | 中铁山河工程装备股份有限公司 | Rectangular vertical shaft boring machine |
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