CN209555908U - A kind of vibroflotation device suitable for unsaturation Extra-fine sand - Google Patents
A kind of vibroflotation device suitable for unsaturation Extra-fine sand Download PDFInfo
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- CN209555908U CN209555908U CN201822087294.2U CN201822087294U CN209555908U CN 209555908 U CN209555908 U CN 209555908U CN 201822087294 U CN201822087294 U CN 201822087294U CN 209555908 U CN209555908 U CN 209555908U
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- water inlet
- vibrating impacter
- pipe
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- fine sand
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Abstract
The utility model discloses a kind of vibroflotation devices suitable for unsaturation Extra-fine sand, and radial outlet pipeline and vertical outlet pipeline are arranged on the cylinder body outer wall of vibrating impacter；It is fixedly installed the first outside water inlet pipe and the second outside water inlet pipe, the radial outlet pipeline connection of the first outside water inlet pipe and vibrating impacter, the vertical outlet pipeline connection of the second outside water inlet pipe and vibrating impacter along its length on vibrating impacter guide rod.The present apparatus is by being arranged radial outlet pipeline, and Extra-fine sand is easier collapse hole on the outside of vibrating impacter, avoids vibrating impacter motor sky from shaking, layer of sand vibro densification effect is improved using the horizontal lateral compression of vibrating impacter.
Description
Technical field
The utility model relates to geotechnical engineering foundation treatment technology fields, are suitable for unsaturation more specifically to one kind
The vibroflotation device of Extra-fine sand.
Background technique
The processing method most common for deep sand foundation is vibroflotation, also known as vibro jetting process at present, is with crane
Vibrating impacter is sling, and starts submersible motor and drives eccentric block, so that vibrator is generated high-frequency vibration, while starting water pump and passing through spray
Mouth sprays high pressure water flow, under the collective effect rushed in vibration, vibrator is sunk to the predetermined depth in soil, is mentioned through pore-forming back
Bian Zhen is squeezed foundation soil under the action of vibration closely knit, can promote vibrator after reaching the compactness of requirement, repeatedly
Until ground.It just will form the closely knit pile body an of major diameter in this way in ground, and constitute composite foundation with original place base, can have
Effect improves foundation bearing capacity, reduces sedimentation, is widely used in handling liquefaction of soil, reduces landslide, increases soil layer antidetonation
Ability reduces many aspects such as sand foundation sedimentation, is a kind of quick, economical and effective reinforcement means.
Vibroflotation is divided into non-filler vibro-flotation and has filler vibroflotation (also referred to as vibro-replacement stone column method), and vibrating impacter is that vibroflotation is applied
Special equipment in work, is broadly divided into hydraulic vibroflotation device and electronic vibrating impacter, it can generate the vibration of Horizontal Vibration power and squeeze filler
And surrounding soil, foundation capability is improved, settling amount is reduced, increases foundation stability, improves shock resistance to reach
Purpose.Traditional vibrating impacter vibroflotation is used for high roadbed non-filling Extra-fine sand ground, testing result shows that bearing capacity cannot
Meet requirement, the problems such as settlement after construction is big.Main cause is the hardened effect of high roadbed Extra-fine sand, is not allowed during vibroflotation
Easy collapse hole causes vibrating impacter motor sky to shake, does not have lateral compression dense effect.
Utility model content
It is not easy collapse hole utility model aims to solve Extra-fine sand during vibroflotation is hardened, causes vibrating impacter motor
The problem of sky shakes, and does not have lateral compression dense effect, provides a kind of vibroflotation device suitable for unsaturation Extra-fine sand, so that
Vibrating impacter periphery Extra-fine sand is easy collapse hole, reduces vibrating impacter sky and shakes the time, improves vibro densification effect.
The utility model is achieved through the following technical solutions:
A kind of vibroflotation device suitable for unsaturation Extra-fine sand, including vibrating impacter, are arranged on the cylinder body outer wall of vibrating impacter
There are radial outlet pipeline and vertical outlet pipeline；
The radial direction outlet pipeline includes an annular conduit, and the annular conduit is coaxial with vibrating impacter and is fixed on vibrating impacter cylinder
On external wall, multiple water outlet through-holes are offered on annular conduit, and there is the first water inlet communicated therewith to connect on annular conduit
Pipe；
The vertical outlet pipeline includes two vertical pipes, and two vertical pipes are symmetrically fixed on vibrating impacter cylinder body outer wall,
The bottom end water outlet of two vertical pipes extends to vibrating impacter bottom, and the upper end water inlet of two vertical pipes passes through a semi-circular shape water pipe
It is connected, which is located under annular conduit, and there is the second water inlet communicated therewith to connect on semi-circular shape water pipe
Pipe；
Further include vibrating impacter guide rod, be fixedly installed along its length on vibrating impacter guide rod the first outside water inlet pipe and
Second outside water inlet pipe, the first outside water inlet pipe pass through the first water inlet adapter tube connection on the first wired hose and annular conduit；
Second outside water inlet pipe passes through the second water inlet adapter tube connection on the second wired hose and semi-circular shape water pipe.
In the above-mentioned technical solutions, water outlet through-hole is equally spaced along annular conduit.
In the above-mentioned technical solutions, long 4-7cm is taken in the first water inlet.
In the above-mentioned technical solutions, the annular conduit is apart from vibrating impacter top surface 7-12cm.
In the above-mentioned technical solutions, the annular conduit, the first water inlet adapter tube are all made of steel pipe, annular conduit and first into
It is welded to connect between water adapter tube.
In the above-mentioned technical solutions, the bottom end water outlet of vertical pipe is apart from vibrating impacter bottom surface 5-10cm.
In the above-mentioned technical solutions, the length of the second water inlet adapter tube is 7-15cm.
In the above-mentioned technical solutions, the infall use with annular conduit of the second water inlet adapter tube is bent outwardly structure, with
Make the second water inlet adapter tube that can lead to the top of annular conduit upwards.
In the above-mentioned technical solutions, the vertical pipe, semi-circular shape water pipe and the second water inlet adapter tube are all made of steel pipe, vertically
It is welded to connect between pipe and semi-circular shape water pipe, is welded to connect between semi-circular shape water pipe and the second water inlet adapter tube.
In the above-mentioned technical solutions, two groups of channel plates, the channel plate are also symmetrically arranged on vibrating impacter cylinder body outer wall
For strip, it is provided on channel plate and grows the water guide through slot to setting along it.
It the advantages of the utility model and has the beneficial effect that
(1) present apparatus increases the water content of unsaturation sand, in vibrating impacter strength vibration processes by external intake tunnel
In, sand is easier to liquefy, and sand particle rearrangement, hole is reduced；
(2) present apparatus is by being arranged radial outlet pipeline, and Extra-fine sand is easier collapse hole on the outside of vibrating impacter, avoids vibrating impacter electric
The vibration of machine sky, layer of sand vibro densification effect is improved using the horizontal lateral compression of vibrating impacter；
(3) present apparatus deft design, structure are simple, manufacturing cost is lower, easy to operate, easy to loading and unloading, can be effectively
Improve working efficiency.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the vibroflotation device suitable for unsaturation Extra-fine sand of the utility model.
It for those of ordinary skill in the art, without creative efforts, can be according to above attached
Figure obtains other relevant drawings.
Specific embodiment
In order to make those skilled in the art better understand the scheme of the utility model, combined with specific embodiments below into one
Step illustrates the technical solution of the utility model.
Embodiment one
Referring to attached drawing, a kind of vibroflotation device suitable for unsaturation Extra-fine sand, including vibrating impacter a, in the cylinder of vibrating impacter
Radial outlet pipeline and vertical outlet pipeline are provided on outer wall.
The radial direction outlet pipeline includes an annular conduit 1-1, and the annular conduit is coaxial with vibrating impacter and is weldingly fixed on
On vibrating impacter cylinder body outer wall, multiple water outlet through-hole 1-2 are offered on annular conduit 1-1, are discharged through-hole along annular conduit 1-1 etc.
Spacing arrangement, has the first water inlet adapter tube 1-3 communicated therewith on annular conduit 1-1, and long 4-7cm, water are taken in the first water inlet
Enter annular conduit 1-1 from the first water inlet adapter tube 1-3, then carries out radial water spray from water outlet through-hole 1-2, it is furtherly, described
Annular conduit 1-1 is located at the top position of vibrating impacter 1, and preferably, annular conduit 1-1 is apart from 1 top surface 7-12cm of vibrating impacter, in this way
The water that annular conduit 1-1 can be made to spray acts on the fine sand around vibrating impacter, increases the water content of unsaturation sand.Further
, the annular conduit 1-1, the first water inlet adapter tube 1-3 are all made of steel pipe, the company of welding between annular conduit and the first water inlet adapter tube
It connects.
The vertical outlet pipeline includes two vertical pipe 2-1, and two vertical pipes are symmetrically fixed on vibrating impacter cylinder body outer wall
On, the bottom end water outlet of two vertical pipes extends to 1 bottom of vibrating impacter, and (preferably, the bottom end water outlet of vertical pipe is apart from vibrating impacter 1
Bottom surface 5-10cm), the upper end water inlet of two vertical pipes is connected by a semi-circular shape water pipe 2-2, the semi-circular shape water pipe
There is the second water inlet adapter tube 2-3 communicated therewith under annular conduit 1-1, on semi-circular shape water pipe 2-2, the second water inlet connects
The length of pipe is 7-15cm, and the infall use with annular conduit 1-1 of the second water inlet adapter tube is bent outwardly structure 2-31, so that
Second water inlet adapter tube can lead to the top of annular conduit 1-1 upwards.Further, the vertical pipe 2-1, semi-circular shape water pipe
The water inlet of 2-2 and second adapter tube 2-3 is all made of steel pipe, is welded to connect between vertical pipe and semi-circular shape water pipe, semi-circular shape water pipe
And second water inlet adapter tube between be welded to connect.
Further include vibrating impacter guide rod b, is fixedly installed the first outside water inlet pipe 3 along its length on vibrating impacter guide rod
With the second outside water inlet pipe 4, the first outside water inlet pipe 3 is connect by the first wired hose 5 and the first water inlet on annular conduit 1-1
Pipe 1-3 connection；Second outside water inlet pipe 4 passes through the second water inlet adapter tube 2- on the second wired hose 6 and semi-circular shape water pipe 2-2
3 connections.In use, the top water inlet of the first outside water inlet pipe 3 and the second outside water inlet pipe 4 is connected with water supply pipe respectively
It connects, realizes and supply water.
Embodiment two
On the basis of example 1, further, two groups of channel plates are also symmetrically arranged on vibrating impacter cylinder body outer wall
7, the channel plate 7 is strip, is provided on channel plate 7 and grows the water guide through slot 7-1 to setting along it, when work, vibrating impacter
The water guide through slot 7-1 that the water energy of bottom enough passes through channel plate 7 is flowed up, and further increases the unsaturation sand around vibrating impacter
Water content.
Embodiment three
Certain engineering, using high roadbed Extra-fine sand as runway ground, height of embankment 30m, basement process is using nothing
Filler vibroflotation technique.Vibroflotation point equilateral triangle arrangement, spacing 3.5m, vibroflotation depth 15m~18m, vibrating impacter power are
130kW, vibrating impacter nose end irrigation pressure 0.7Mpa~0.8Mpa, power supply are controlled in 380 ± 20V, compact electric current 130A~160A.
Step 1, back-filling in layers Extra-fine sand reserve vibroflotation deflection, and backfill total height is 31m；
Step 2 flattens place, setting-out vibroflotation hole location；
Step 3 before vibroflotation, carries out immersion processing to vibroflotation region, is sufficiently humidified so as to ground；
Step 4, loop wheel machine is in place, and vibrating impacter is directed at vibroflotation point, opens vibrating impacter, opens water pump, air pump；
Step 5, vibrating impacter at the uniform velocity sink, and guarantee that vibrating impacter is vertical, vertical outlet pipeline water yield is reached 30m3/ h~
50m3/ h, radial outlet pipeline water yield are turned down as far as possible, when vibrating impacter reaches design vibroflotation depth, closing air pump, vibration staying 20s；
The purpose of this step is sinking vibrating impacter, so vertical outlet pipeline water yield is larger, to accelerate vibrating impacter to sink, and radial direction goes out
Water lines do not need larger water outlet, but the water outlet through-hole of fine sand blocking annular conduit in order to prevent, so radial outlet pipeline
Need to keep certain lower water yield；
Step 6 starts to promote vibrating impacter, turn down vertical outlet pipeline water as far as possible in lifting process, radial outlet pipe
Road water opens to the maximum as far as possible, promotes speed and is determined by scene promotion complexity, every promotion 0.5m vibration staying 20s, vibrating impacter top
Portion locates vibration staying 120s far from aperture 0.5m, pays close attention to compact electric current.It is pulled out if there is the relatively low up and down reciprocatingly anti-plug that should carry out of electric current
Vibrating impacter avoids local vibroflotation leakiness phenomenon；Increase suddenly if there is electric current, above mention vibrating impacter rapidly, avoids the occurrence of and " embrace
Extremely " phenomenon；The purpose of this step is compacted to the Extra-fine sand vibroflotation around vibrating impacter, so saying radial outlet pipeline water as far as possible
It opens to the maximum, increases the water content of unsaturation sand, during vibrating impacter strength is vibrated, Extra-fine sand is easier to liquefy, sand particle
It rearranges, it is easier to which collapse hole improves layer of sand vibration using the horizontal lateral compression of vibrating impacter so that vibrating impacter motor sky be avoided to shake
Rush dense effect；
Step 7 repeats step 4~six, discharges into row vibroflotation, avoids string hole, finally reaches entire place whole vibroflotation
Compacted effect.
Illustrative description has been done to the utility model above, it should explanation, in the core for not departing from the utility model
In the case where the heart, it is any it is simple deformation, modification or other skilled in the art can not spend creative work etc.
The protection scope of the utility model is each fallen with replacement.
Claims (9)
1. a kind of vibroflotation device suitable for unsaturation Extra-fine sand, it is characterised in that: including vibrating impacter, outside the cylinder of vibrating impacter
Radial outlet pipeline and vertical outlet pipeline are provided on wall；
The radial direction outlet pipeline includes an annular conduit, and the annular conduit is coaxial with vibrating impacter and is fixed on outside vibrating impacter cylinder
On wall, multiple water outlet through-holes are offered on annular conduit, and there is the first water inlet adapter tube communicated therewith on annular conduit；
The vertical outlet pipeline includes two vertical pipes, and two vertical pipes are symmetrically fixed on vibrating impacter cylinder body outer wall, and two
The bottom end water outlet of vertical pipe extends to vibrating impacter bottom, and the upper end water inlet of two vertical pipes is connected by a semi-circular shape water pipe
Logical, which is located under annular conduit, has the second water inlet adapter tube communicated therewith on semi-circular shape water pipe；
Further include vibrating impacter guide rod, is fixedly installed the first outside water inlet pipe and second along its length on vibrating impacter guide rod
External water inlet pipe, the first outside water inlet pipe pass through the first water inlet adapter tube connection on the first wired hose and annular conduit；Second
External water inlet pipe passes through the second water inlet adapter tube connection on the second wired hose and semi-circular shape water pipe.
2. a kind of vibroflotation device suitable for unsaturation Extra-fine sand according to claim 1, it is characterised in that: water outlet through-hole
It is equally spaced along annular conduit.
3. a kind of vibroflotation device suitable for unsaturation Extra-fine sand according to claim 1, it is characterised in that: the first water inlet
Take over long 4-7cm.
4. a kind of vibroflotation device suitable for unsaturation Extra-fine sand according to claim 1, it is characterised in that: the annular
Water pipe is apart from vibrating impacter top surface 7-12cm.
5. a kind of vibroflotation device suitable for unsaturation Extra-fine sand according to claim 1, it is characterised in that: the annular
Water pipe, the first water inlet adapter tube are all made of steel pipe, are welded to connect between annular conduit and the first water inlet adapter tube.
6. a kind of vibroflotation device suitable for unsaturation Extra-fine sand according to claim 1, it is characterised in that: vertical pipe
Bottom end water outlet is apart from vibrating impacter bottom surface 5-10cm.
7. a kind of vibroflotation device suitable for unsaturation Extra-fine sand according to claim 1, it is characterised in that: the second water inlet
The length of adapter tube is 7-15cm.
8. a kind of vibroflotation device suitable for unsaturation Extra-fine sand according to claim 1, it is characterised in that: the second water inlet
Take over use with annular conduit infall is bent outwardly structure, so that the second water inlet adapter tube can lead to annular conduit upwards
Top.
9. a kind of vibroflotation device suitable for unsaturation Extra-fine sand according to claim 1, it is characterised in that: described vertical
Pipe, semi-circular shape water pipe and the second water inlet adapter tube are all made of steel pipe, are welded to connect between vertical pipe and semi-circular shape water pipe, semicircle
It is welded to connect between annular conduit and the second water inlet adapter tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822087294.2U CN209555908U (en) | 2018-12-12 | 2018-12-12 | A kind of vibroflotation device suitable for unsaturation Extra-fine sand |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822087294.2U CN209555908U (en) | 2018-12-12 | 2018-12-12 | A kind of vibroflotation device suitable for unsaturation Extra-fine sand |
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| CN209555908U true CN209555908U (en) | 2019-10-29 |
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| CN201822087294.2U Active CN209555908U (en) | 2018-12-12 | 2018-12-12 | A kind of vibroflotation device suitable for unsaturation Extra-fine sand |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109505294A (en) * | 2018-12-12 | 2019-03-22 | 中交天津港湾工程研究院有限公司 | A kind of vibroflotation device and its construction method suitable for unsaturation Extra-fine sand |
-
2018
- 2018-12-12 CN CN201822087294.2U patent/CN209555908U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109505294A (en) * | 2018-12-12 | 2019-03-22 | 中交天津港湾工程研究院有限公司 | A kind of vibroflotation device and its construction method suitable for unsaturation Extra-fine sand |
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