CN110439048A - A kind of hydraulicking strand suction device and method for inner support base pit engineering - Google Patents
A kind of hydraulicking strand suction device and method for inner support base pit engineering Download PDFInfo
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- CN110439048A CN110439048A CN201910811579.2A CN201910811579A CN110439048A CN 110439048 A CN110439048 A CN 110439048A CN 201910811579 A CN201910811579 A CN 201910811579A CN 110439048 A CN110439048 A CN 110439048A
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- hydraulicking
- inner support
- twists
- mobile jib
- support base
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- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000009412 basement excavation Methods 0.000 claims abstract description 27
- 238000010276 construction Methods 0.000 claims abstract description 16
- 239000002344 surface layer Substances 0.000 claims abstract description 6
- 238000003780 insertion Methods 0.000 claims abstract description 3
- 230000037431 insertion Effects 0.000 claims abstract description 3
- 210000000515 tooth Anatomy 0.000 claims description 17
- 238000004080 punching Methods 0.000 claims description 16
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 230000008676 import Effects 0.000 claims description 4
- 239000000758 substrate Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 2
- 239000002689 soil Substances 0.000 abstract description 28
- 230000008901 benefit Effects 0.000 abstract description 4
- 239000000428 dust Substances 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000004904 shortening Methods 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- 239000010410 layer Substances 0.000 description 6
- 230000032258 transport Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 241000219000 Populus Species 0.000 description 1
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 244000309464 bull Species 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
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- 230000005611 electricity Effects 0.000 description 1
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Classifications
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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
- E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
- E02F3/92—Digging elements, e.g. suction heads
-
- 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
- E02F3/92—Digging elements, e.g. suction heads
- E02F3/9212—Mechanical digging means, e.g. suction wheels, i.e. wheel with a suction inlet attached behind the wheel
- E02F3/9218—Mechanical digging means, e.g. suction wheels, i.e. wheel with a suction inlet attached behind the wheel with jets
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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
- E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
- E02F3/92—Digging elements, e.g. suction heads
- E02F3/9212—Mechanical digging means, e.g. suction wheels, i.e. wheel with a suction inlet attached behind the wheel
- E02F3/9225—Mechanical digging means, e.g. suction wheels, i.e. wheel with a suction inlet attached behind the wheel with rotating cutting elements
- E02F3/9231—Suction wheels with axis of rotation parallel to longitudinal axis of the suction pipe
Abstract
It is twisted the present invention provides a kind of hydraulicking for inner support base pit engineering and inhales device and method, it includes mobile jib that hydraulicking, which twists suction equipment, power device, twin shaft twists native device, it further include the dredging tube being nested in mobile jib, and setting accesses above power device and extends the giant of insertion fixed plate in mobile jib two sides；It the described method comprises the following steps: surface layer soil excavation；The installation of the i-beam track of the construction and electric block of first concrete inner support；Pipeline is laid with；Workload arrangement；Hydraulicking construction.The invention has the benefit that the configuration of the present invention is simple, it is easy to operate, maintenance is easy and expense is low, for the progress weak soil excavation in the base pit engineering there are inner support, efficiency is obviously improved compared with conventional excavators, a large amount of durations for shortening earth work, reduce the problems such as fugitive dust bring influences, solves dregs transportation.
Description
Technical field
The present invention relates to earth excavation equipment technical fields more particularly to a kind of for there are the equipment of inner support is mobile empty
Between the hydraulicking of lesser base pit engineering twist and inhale equipment and application method.
Background technique
Now, aboveground space starts to rapidly develop close to saturation, underground space engineering, and most engineerings require foundation pit
Supporting, especially Soft Soil Foundation Pit require setting supporting construction, however it is narrow to arrange the foundation pit activity space after inner support, pole
The normal work of large excavator is limited greatly, causes earth excavation rate slow, while the earthwork needs ancillary equipment to transport again
It is outer that machine transports hole, extends the duration and can generate security risk again, and dregs transportation is costly while also by time restriction, separately
Outside, can also generate fugitive dust influences environment, brings many influences to engineering thus.
There is strand suction suction dredge inhaling mud apparatus field, major function is all to clear up mud and be embedded in water-bed silt,
It is not suitable for the earth excavation of land.Chinese patent, Patent No. 201820676270.8 disclose a kind of " strand suction suction mud
Machine " drives two drawing out soil equipment of downlink by power device, adds ring flat-plate and wing plate on drill bit, increase and cut native ability, for big
Type open caisson soil extracting efficiency in circle gravel soil layer, clay layer is splendid, is widely used in open caisson suck sediment subsidence engineering.The equipment can only
The soil body for inhaling that water content is big or intensity is small is twisted, and arranges suction dredge generally by cargo ship, is not suitable for land foundation pit earth
The excavation of body.
Chinese patent CN207998850 discloses " a kind of pit earthwork hydraulicking system that borders on the sea near a river ", including waterpower
Rush digging machine structure and slurry transportation mechanism two parts.The hydraulicking system reduces temporary project construction, and the construction period is short, economical
Environmental protection.However hydraulicking and slurry transportation are separated independent progress by the patent, are considered without integration, in addition the system for
Punching is dug efficiency and will be substantially reduced when soil mass of foundation pit property is preferable, foundation pit area is big.
How to solve above-mentioned technical problem is the project that the present invention faces.
Summary of the invention
It is narrow for construction space that the purpose of the present invention is to provide one kind, is especially in the presence of the water of the deep basal pit of inner support
Power punching, which digs to twist, inhales device and method.
The present invention is realized by following measure: a kind of hydraulicking strand suction equipment for inner support base pit engineering,
Including mobile jib, the power device being connected in the mobile jib and fixed beam twists native device by the twin shaft that the power device drives,
The twin shaft twists native device and runs through and be connected in the fixed beam and fixed plate, and two axial symmetry that the twin shaft twists native device are set
Set, it includes hydraulic motor that each twin shaft, which twists native device, the hydraulic motor bottom end be axially connected be driven by it is dynamic
Power output shaft, the power output shaft are connected with reamer head, further include the dredging tube being nested in the mobile jib, and setting exists
The mobile jib two sides are accessed above the power device and extend the giant for being inserted into the fixed plate.
As a kind of hydraulicking strand suction equipment side of advanced optimizing for inner support base pit engineering provided by the invention
Case, it includes the hydraulic motor that the twin shaft, which twists each axis in native device, the hydraulic motor lower end by screw with it is described
Fixed beam connection；The hydraulic motor bottom end is connected with the power output shaft being driven by it, and the power output shaft is straight down
Extend；The reamer head is fixed on the power output shaft lower end, drives its rotation by the power output shaft.
As a kind of hydraulicking strand suction equipment side of advanced optimizing for inner support base pit engineering provided by the invention
Case, the reamer head lower part are double-helix drill bit, and middle part is several reamer tooths, several described reamer tooths are spiral point
Cloth, the reamer between cog are equipped with groove along reamer head generatrix direction；Top is wing plate, and the wing plate is four and is mutually perpendicular to, and
Section is trapezoidal up-narrow and down-wide steel plate composition, is welded and fixed together between the wing plate by outer fixed ring.
As a kind of hydraulicking strand suction equipment side of advanced optimizing for inner support base pit engineering provided by the invention
Case, the mobile jib are hollow thin-wall steel pipe, and upper end inner wall is equipped with screw thread, can increase the length of the mobile jib, institute with threaded sleeve
Stating threaded sleeve is that the dredging tube is nested in the mobile jib, and dredging tube upper section outlet end is connect with dredge pump, lower end
Across fixed plate certain length but the not up to described reamer head horizontal position, tail portion is connected with mud-suction nozzle.
As a kind of hydraulicking strand suction equipment side of advanced optimizing for inner support base pit engineering provided by the invention
Case, the mud-suction nozzle are connected to dredging tube bottom end entrance, and lower end import is circular cone shape, are built-in with grid gear
Plate；Grid baffle can prevent rubble from entering in dredging tube.
As a kind of hydraulicking strand suction equipment side of advanced optimizing for inner support base pit engineering provided by the invention
Case, the giant are arranged in the mobile jib two sides, and upper section input end is connect with high-pressure hydraulic pump, middle part and the power device
It is fixed by lock, lower end passes through the fixing board card in U-type groove, and is higher by the mud-suction nozzle horizontal position；The pressure water
Rifle lower end pass through fixing board card in U-type groove certain length but be higher than mud-suction nozzle horizontal position.
As a kind of hydraulicking strand suction equipment side of advanced optimizing for inner support base pit engineering provided by the invention
Case, the twin shaft twist native device and sequentially pass through the fixed beam and the fixed plate, be connected with the mobile jib, the fixed beam
It is welded on the mobile jib with the fixed plate.
Further, it further includes clump weight that the hydraulicking, which twists suction equipment, and the clump weight is stuck in institute for symmetrical two pieces
Mobile jib two sides are stated, and are stacked upwards in turn using the fixed plate as bottom surface.
In order to which the purpose of the present invention is better achieved, the present invention also provides a kind of hydraulickings of inner support base pit engineering
Twist the application method for inhaling equipment, comprising the following steps:
1) sundries such as foundation pit surface layer miscellaneous fill are removed by mechanical excavation, and dug to first of inner support bottom surface；
2) first of concrete inner support and reserved bolt are poured, continues to excavate 2m downwards, i-beam track and electricity is installed
Dynamic cucurbit；
3) suction equipment is twisted using the electric block handling arrangement hydraulicking in step 2) to march into the arena；
4) excavation construction is rushed using first center, the sequence of excavation of rear surrounding, is excavated to lower one downwards using hydraulicking
Bottom surface is supportted, one of concrete inner support and reserved bolt is poured down, continues to dig 2m to undershoot, electric block and hydraulicking are installed
It twists and inhales equipment；And so on, hydraulicking is stopped using when being excavated to from substrate 0.3m, is completed by artificial clear bottom.
Excavation construction is rushed in the step 4) using first center, the digging mode of rear surrounding, it then follows " be layered, be uniform, is symmetrical "
Excavation principle.
The invention has the benefit that
(1) the configuration of the present invention is simple, easy to operate, maintenance is easy and expense is low, for there are the foundation pit works of inner support
Weak soil excavation is carried out in journey, efficiency is obviously improved compared with conventional excavators, a large amount of durations for shortening earth work, reduces fugitive dust
The problems such as bring influences, and solves dregs transportation.
(2) present invention twists native device synchronization job using twin shaft, and reamer head is divided into four functional areas, and lower part is double helix brill
Head can creep into and rub hard soil layer；Several reamer tooth protrusions in middle part are simultaneously distributed around bit interface spiral, can be effective
It rubs the soil body and expands shoveling area and twist the soil body to reamer head top；It is carved with groove along generatrix direction reamer between cog, favorably
In preventing the soil body or filler from blocking reamer tooth；Top is wing plate, and wing plate section is native mixing water continuation trapezoidal, that strand is come up
Mud is stirred into, the non-deformability that the design of trapezoid cross section not only increases wing plate simultaneously can also be to soil vertical force component in stirring
The soil being stirred is pushed away to upper layer constantly, is closer to dredging tube, and the wing plate of large area can increase and the contact of soil
Area, which improves, twists native efficiency, and final cooperating equipment realizes that punching digs to twist and inhales function.
(3) dredging tube is integrated with equipment with giant in the present invention, can carry out punching simultaneously and dig strand suction, largely simple
The complexity for having changed construction can will rush excavation method and improve working efficiency and the scope of application in conjunction with strand absorbing method.
(4) hydraulic motor is used in the present invention, revolving speed is low, and it can directly be connect with operating mechanism, not need deceleration device,
Greatly simplify transmission mechanism, the output torque of low speed hydraulic motor is larger.
(5) equipment mobile jib length is increased using threaded sleeve in the present invention, it is easy to operate, applicability is high.
(6) replaceable mud-suction nozzle is used in the present invention, grid baffle built in mud-suction nozzle can prevent bulk rubble or hard soil
Block enters dredging tube, guarantees that suction dredge operates normally.
(7) equipment used in the present invention is light, can be in any position operation of foundation pit, and work progress can control leaching
Water area reduces the raising of water content of soil in cheating as far as possible.
(8) noise and poplar dirt in the construction process of the invention is all smaller, is not necessarily to earthwork transportation energy conservation and environmental protection.
(9) method used in the present invention can significantly improve the mechanization degree of weak soil place foundation pit earth excavation, dig
Soil is high-efficient, and can continue working for 24 hours, can significantly shorten the earth excavation duration；In addition, project cost is also compared with conventional method
Have and significantly reduces.
Detailed description of the invention
Fig. 1 is the structural front view of the embodiment of the present invention；
Fig. 2 is the structure left view of the embodiment of the present invention；
Fig. 3 is the cross-sectional view of the line A-A along Fig. 1；
Fig. 4 is the partial enlargement diagram in Fig. 1 at B；
Fig. 5 is the main view in Fig. 1 at B；
Fig. 6 is the C direction view of Fig. 5；
Fig. 7 is the D direction view of Fig. 5；
Fig. 8 is the structural schematic diagram of mud-suction nozzle in the embodiment of the present invention；
Fig. 9 is threaded sleeve main view in the embodiment of the present invention；
Figure 10 is the assembling structure schematic diagram of hydroexcavation equipment and internal support of foundation pit in the embodiment of the present invention；
Wherein, appended drawing reference are as follows: 1, mobile jib；2, power device；3, hydraulic motor；4, power output shaft；5, fixed plate；6,
Dredging tube；6-1, mud-suction nozzle；7, giant；8, reamer head；8-1, double-helix drill bit；8-2, reamer tooth；8-3, wing plate；8-4,
Groove；8-5, outer fixed ring；9, fixed beam；10, it latches；11, U-type groove；12, threaded sleeve；13, electric block；14, I-steel
Track；15, inner support.
Specific embodiment
In order to clarify the technical characteristics of the invention, being illustrated below by specific embodiment to this programme.
Referring to Fig. 1 to Figure 10, the present invention is: a kind of hydraulicking strand suction equipment for inner support base pit engineering, including
Mobile jib 1, the power device 2 being connected in mobile jib 1 and fixed beam 9 twist native device by the twin shaft that power device 2 drives, and twin shaft twists
Native device runs through and is connected in fixed beam 9 and fixed plate 5, and twin shaft twists the two axial symmetry setting of native device, and each twin shaft twists soil
Device includes hydraulic motor 3, and hydraulic motor bottom end is axially connected with the power output shaft 4 being driven by it, and power output shaft 4 connects
It is connected to reamer head 8, further includes the dredging tube 6 being nested in mobile jib 1, and is arranged in 1 two sides of mobile jib, above power device 2
Access and extend the giant 7 of insertion fixed plate 5.
Specifically, it includes hydraulic motor 3 that twin shaft, which twists each axis in native device, and 3 lower end of hydraulic motor is by screw and admittedly
Determine the connection of beam 9；3 bottom end of hydraulic motor is connected with the power output shaft 4 being driven by it, and power output shaft 4 extends straight down；It twists
Cutter head 8 is fixed on 4 lower end of power output shaft, drives its rotation by power output shaft 4.
Specifically, 8 lower part of reamer head is double-helix drill bit 8-1, and middle part is several reamer tooths 8-2, several reamers
Tooth 8-2 is Spiral distribution, is equipped with groove 8-4 along 8 generatrix direction of reamer head between reamer tooth 8-2；Top is wing plate 8-3, wing plate 8-3
It is mutually perpendicular to for four, and section is trapezoidal up-narrow and down-wide steel plate composition, is welded between wing plate 8-3 by outer fixed ring 8-5
It is fixed together；
8 maximum gauge 50cm of reamer head, reamer head 8 divide for three parts upper in lower, and lower part is double-helix drill bit 8-1 high 5cm；
Middle part is reamer tooth 8-2, and it is one group of reamer tooth 8-2, about every group two reamer tooth 8-2 that reamer tooth, which is every 45 ° of Spiral distribution, respectively
The groove 8-4 of width 2cm, deep 0.5cm are equipped between group reamer tooth 8-2 along 8 generatrix direction of reamer head；Top is wing plate 8-3, wing plate 8-
3 for four orthogonal sections be trapezoidal upper width be 1.5cm, and lower width is the steel plate of 5cm.
The working principle of reamer head 8: lower part double-helix drill bit 8-1 can easily creep into hard soil layer；Middle spiral rises
While the reamer tooth 8-2 of distribution can expand shoveling area, soil is tentatively rubbed and shifts 8 top of reamer head onto；Top wing plate
8-3, which will twist the native mixing water to come up, to be continued to stir into mud, and the non-deformability that the setting of trapezoid cross section not only increases wing plate 8-3 is same
When can also to soil vertical force component stirring when constantly the soil being stirred be pushed away to upper layer, be closer to dredging tube 6, finally match
It closes equipment and realizes that punching digs strand and inhales function；Reamer can be effectively prevented in groove 8-4, and 8-2 is filled object blocking.
Specifically, mobile jib 1 is hollow thin-wall steel pipe, and upper end inner wall is equipped with screw thread, can increase mobile jib 1 with threaded sleeve 12
Length, threaded sleeve 12 are that dredging tube 6 is nested in mobile jib 1, and 6 upper section outlet end of dredging tube is connect with dredge pump, that is to say down
Across 5 certain length of fixed plate but not up to 8 horizontal position of reamer head, lower end passes through fixed plate 5, and is lower than 8 water of reamer head at end
Prosposition is set, and tail portion is connected with mud-suction nozzle 6-1；Wherein, mobile jib 1 is outer diameter 22cm, and the hollow thin-wall steel pipe of internal diameter 18.5cm is inhaled
6 diameter of mud pipe is that 18cm is nested in mobile jib 1, and 6 the top outlet end of dredging tube is connect with dredge pump, and lower end passes through fixed plate 5
Certain length but not up to 8 horizontal position of reamer head, tail portion are connected to mud-suction nozzle 6-1, and dredge pump selects NL125-20.0, flow
200m3/ h, make the best use of the advantages 20m, match power 22kw.
Specifically, mud-suction nozzle 6-1 is connected to 6 bottom end entrance of dredging tube, and lower end import is circular cone shape, is built-in with
Grid baffle；Grid baffle can prevent rubble from entering in dredging tube 6.Wherein, the import of the lower end mud-suction nozzle 6-1 is the circular cone of high 2cm
Mesa-shaped, built-in grid baffle are 2cm × 2cm cuboid, and grid baffle can effectively prevent rubble to enter dredging tube 6.
Specifically, giant 7 is arranged in 10 two sides of mobile jib, and upper section input end is connect with high-pressure hydraulic pump, middle part and power
Device 2 is fixed by lock 10, and lower end passes through fixed beam 9 and is stuck in U-type groove 11, and is higher by the horizontal position mud-suction nozzle 6-1；Namely
It is that 7 lower end of giant is stuck in certain length in U-type groove 11 across fixed beam 9 but is higher than the horizontal position mud-suction nozzle 6-1, high pressure water
Pump selects 3BP-57, flow 50m3/ h, make the best use of the advantages 57m, match power 15kw.
It further include clump weight, clump weight is symmetrical two pieces and is stuck in 1 two sides of mobile jib and is that bottom is folded upwards in turn with fixed plate 5,
The long 35cm wide 17cm thickness 10cm of clump weight, inside hollow part are the semicircle of diameter 22cm.
It further include outer diameter 22cm, the more threaded sleeves of long 1m are sequentially connected from beginning to end for increasing by 1 length of equipment mobile jib,
It is easy to operate, applicability is high.
Specifically, twin shaft twists native device and sequentially passes through fixed beam 9 and fixed plate 5, is connected with mobile jib 1, fixed beam 9 with consolidate
Fixed board 5 is welded on mobile jib 1, and provides the vertical holding power for bearing to twist native device self weight and Percussion counter-force.
In order to which the purpose of the present invention is better achieved, the present invention also provides a kind of hydraulickings of inner support base pit engineering
Twist the application method for inhaling equipment, comprising the following steps:
1) sundries such as foundation pit surface layer miscellaneous fill are removed by mechanical excavation, and dug to first of 15 bottom surface of inner support；
2) first of concrete inner support 15 and reserved bolt are poured, continues to excavate 2m downwards, i-beam track 14 is installed
And electric block 13；
3) suction equipment is twisted using 13 handling of the electric block arrangement hydraulicking in step 2) to march into the arena；
4) excavation construction is rushed using first center, the sequence of excavation of rear surrounding, is excavated to lower road support downwards using hydraulicking
Bottom surface pours down one of concrete inner support 15 and reserved bolt, continues to dig 2m to undershoot, installs electric block 13 and waterpower punching
It digs to twist and inhales equipment；And so on, hydraulicking is stopped using when being excavated to from substrate 0.3m, it is complete by artificial clear bottom
At.
A kind of hydraulicking of inner support base pit engineering provided by the invention twists the application method for inhaling equipment, specific main packet
Include the following contents:
1) surface layer soil excavation: removing the sundries such as foundation pit surface layer miscellaneous fill by mechanical excavation, and is excavated to first and mixes
15 bottom surface of solidifying soil inner support；
2) construction and the installation of the i-beam track 14 of CD1 type electric block 13 of first of concrete inner support: interior branch
Support 15 setting need to I-steel additional load 205kN/m-479kN/m, inner support 15 construct when need to reserve bolt, bull headction
Road 14 is fixedly connected by bolt with inner support 15, it is rear electric block 13 is installed and disposes punching dig for marching into the arena；
3) pipeline is laid with: feed-line is laid with along land flat terrain, and pipeline is answered flat straight, and camber makes every effort to gently, keep away
Exempt from dog leg；Mud discharge pipe joint should fasten tightly, and entire pipeline and connector must not leak mud leak, discovery leakage, should repair in time or
Replacement；The fixed bracket of sludge pipe must be solid and reliable, must not tilt and shake；
4) workload arrangement: the mud flow rate of separate unit hydroexcavation equipment is 200m3/ h, with mud: water=1: 5 calculate, often
The daily maximal workload of platform equipment is 800m3；According to on-site actual situations and construction schedule arrangement, waterpower punching is arranged
The working time of standby quantity and hydraulicking is dug, guarantees that pit earthwork excavates continuous effective and carries out；
5) hydraulicking is constructed: being excavated to lower road support bottom surface downwards using hydraulicking and is poured down in one of concrete
Support and reserve bolt installation i-beam track, it is rear to continue punching downwards and dig 2m, electric block is installed and punching digs standby, punching digs standby
Using electric block mobile construction in foundation pit by i-beam track, punching dig directly with punching dig for from water head site (river or
Running water pipe) water is extracted, carry out punching digging；Punching digs down the dredging tube extraction that the mud come is fixed in equipment, is transported by pipeline
It transports in the interim mud pit by foundation pit and carries out preliminary sedimentation, afterwards through pipeline mud into the mud carrier of riverside harbour,
And secondary precipitation carrying out in mud carrier to further decrease mud moisture content, transport is rushed to spoil area after mud carrier is fully loaded
Excavation construction is using first center, the digging mode of rear surrounding, it then follows the excavation principle of " be layered, be uniform, symmetrical " reduces foundation pit to the greatest extent
The soaking time on periphery, foundation pit slope angle and slope surface reserve a part of soil body using mechanical engagement man-handling of materials, excavation of foundation pit extremely
From hydraulicking is stopped using at substrate 0.3m, all using hand excavation.
Technical characteristic of the present invention without description can realize that details are not described herein by or using the prior art, certainly,
The above description is not a limitation of the present invention, and the present invention is also not limited to the example above, the ordinary skill of the art
The variations, modifications, additions or substitutions that personnel are made within the essential scope of the present invention also should belong to protection model of the invention
It encloses.
Claims (9)
1. a kind of hydraulicking for inner support base pit engineering, which twists, inhales equipment, which is characterized in that including mobile jib (1), be connected to
Power device (2) on the mobile jib (1) and fixed beam (9) twists native device, institute by the twin shaft of the power device (2) driving
It states the native device of twin shaft strand to run through and be connected in the fixed beam (9) and fixed plate (5), the twin shaft twists two axis pair of native device
Claim setting, it includes hydraulic motor (3) that each twin shaft, which twists native device, and the hydraulic motor bottom end is axially connected with by its drive
Dynamic power output shaft (4), the power output shaft (4) are connected with reamer head (8), further include being nested in the mobile jib (1)
Dredging tube (6), and setting is in the mobile jib (1) two sides, from the power device (2) above access and extend described in insertion
The giant (7) of fixed plate (5).
2. the hydraulicking according to claim 1 for inner support base pit engineering, which twists, inhales equipment, which is characterized in that described
It includes the hydraulic motor (3) that twin shaft, which twists each axis in native device, hydraulic motor (3) lower end by screw with it is described solid
Determine beam (9) connection；Hydraulic motor (3) bottom end is connected with the power output shaft (4) being driven by it, the power output shaft
(4) extend straight down；The reamer head (8) is fixed on the power output shaft (4) lower end, by the power output shaft (4)
Drive its rotation.
3. the hydraulicking according to claim 1 or 2 for inner support base pit engineering, which twists, inhales equipment, which is characterized in that
Reamer head (8) lower part is double-helix drill bit (8-1), and middle part is several reamer tooths (8-2), several described reamer tooths
(8-2) is Spiral distribution, is equipped with groove (8-4) along reamer head (8) generatrix direction between the reamer tooth (8-2)；Top is wing plate
(8-3), the wing plate (8-3) are four and are mutually perpendicular to, and section is trapezoidal up-narrow and down-wide steel plate composition, the wing plate
It is welded and fixed between (8-3) by outer fixed ring (8-5).
4. the hydraulicking according to claim 1-3 for inner support base pit engineering, which twists, inhales equipment, feature
It is, the mobile jib (1) is hollow thin-wall steel pipe, and upper end inner wall is equipped with screw thread, connection screw thread casing on the mobile jib (1)
(12), the threaded sleeve (12) is that the dredging tube (6) are nested in the mobile jib (1), dredging tube (6) the upper section outlet
End is connect with dredge pump, and lower end passes through the fixed plate (5), and is lower than the reamer head (8) horizontal position, and tail portion is connected with
Mud-suction nozzle (6-1).
5. the hydraulicking according to claim 1-4 for inner support base pit engineering, which twists, inhales equipment, feature
It is, the mud-suction nozzle (6-1) is connected to the dredging tube (6) bottom end entrance, and lower end import is circular cone shape, built in
There is grid baffle.
6. the hydraulicking according to claim 1-5 for inner support base pit engineering, which twists, inhales equipment, feature
Be, the giant (7) is arranged in the mobile jib (1) two sides, and upper section input end is connect with high-pressure hydraulic pump, middle part with it is described
Power device (2) is fixed by lock (10), and lower end passes through the fixed beam (9) and is stuck in U-type groove (11), and is higher by the suction
The horizontal position mud mouth (6-1).
7. the hydraulicking according to claim 1-6 for inner support base pit engineering, which twists, inhales equipment, feature
It is, the twin shaft twists native device and sequentially passes through the fixed beam (9) and the fixed plate (5), is connected with the mobile jib (1)
It connects, the fixed beam (9) and the fixed plate (5) are welded on the mobile jib (1).
8. the hydraulicking according to claim 1-7 for inner support base pit engineering, which twists, inhales equipment, feature
It is, it further includes clump weight that the hydraulicking, which twists suction equipment, and the clump weight is symmetrical two pieces and is stuck in the mobile jib (1) two
Side, and be that bottom surface stacks upwards in turn with the fixed plate (5).
9. a kind of hydraulicking based on the described in any item inner support base pit engineerings of claim 1-8 twists the user for inhaling equipment
Method, which comprises the following steps:
1) sundries such as foundation pit surface layer miscellaneous fill are removed by mechanical excavation, and dug to first of inner support (15) bottom surface；
2) first of concrete inner support (15) and reserved bolt are poured, continues to excavate 2.5m downwards, i-beam track is installed
(14) and electric block (13)；
3) suction equipment is twisted using electric block (13) the handling arrangement hydraulicking in step (2) to march into the arena；
4) excavation construction is rushed using first center, the sequence of excavation of rear surrounding, is excavated to down support bottom together downwards using hydraulicking
Face pours down one of concrete inner support (15) and reserved bolt, continues to dig 2m to undershoot, install electric block (13) and waterpower
Punching, which digs to twist, inhales equipment；And so on, hydraulicking is stopped using when being excavated to from substrate 0.3m, it is complete by artificial clear bottom
At.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910811579.2A CN110439048A (en) | 2019-08-29 | 2019-08-29 | A kind of hydraulicking strand suction device and method for inner support base pit engineering |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910811579.2A CN110439048A (en) | 2019-08-29 | 2019-08-29 | A kind of hydraulicking strand suction device and method for inner support base pit engineering |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112253000A (en) * | 2020-10-21 | 2021-01-22 | 简永海 | Built-in thick liquid tubular drill rod subassembly |
| CN112921943A (en) * | 2020-12-17 | 2021-06-08 | 南京工业大学 | Hydraulic burying and monitoring device for soil displacement and using method thereof |
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