CN207278235U - Drilling machine, shield machine churning breast wall apparatus - Google Patents
Drilling machine, shield machine churning breast wall apparatus Download PDFInfo
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- CN207278235U CN207278235U CN201720463047.0U CN201720463047U CN207278235U CN 207278235 U CN207278235 U CN 207278235U CN 201720463047 U CN201720463047 U CN 201720463047U CN 207278235 U CN207278235 U CN 207278235U
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- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The utility model discloses a kind of drilling machine, shield machine churning breast wall apparatus.This method is to set churning device at drilling tool cylinder or cutter head of shield machine rear portion, method when using drilling machine for：High pressure water mud tube reaches drilling tool cylinder rear portion by drill spindle, is divided into several and is in charge of and is distributed to drilling tool cylinder posterior edge, connects high pressure cement spray nozzle for slurry；High pressure cement spray nozzle for slurry faces borehole wall, and high pressure water mud is sprayed from high pressure water slurry outlet, and the negative pressure that accelerator is produced by high pressure water slurry jet is suctioned out and mixed with cement mortar, accelerates the solidification of high pressure water mud and the soil body.The utility model solve the problems, such as in soil layer (particularly stony soil layer) in, major diameter pore-forming when hole wall is stable and water shutoff.
Description
Technical field
The utility model belongs to soil layer pore-forming field in civil engineering, more particularly to drilling machine, shield machine drilling are protected with churning
Wall integrates forming hole method.
Background technology
Implement bored concrete pile, anchor pole, geologic prospect, all kinds of traversing pipe lines in soil layer when project pore-forming, be frequently encountered
Collapse hole phenomenon.The pile quality that causes to pour due to collapse hole is unqualified, drilling cannot continue to implement, the situation of claim for eot also repeatly
See not fresh.Collapse hole occurs in order to prevent, and common method has：In collapse hole position Cast-in-place concrete, drill after solidification from new, this method
Big, cost height is wasted, and extends the duration；Using hole armlet cylinder method, this method needs in retaining wall implant holes and to extract
Setting, cost is very high in the case where the pore diameter is large, and situation about can not take out often occurs, and the duration influences big；Protected using mud
Wall, this method is big to contaminated sites, costly, also seldom uses in recent years.In short, the collapse hole problem of soil layer pore-forming does not have always
There is gratifying solution method, engineering construction is influenced very big.
In tunnel shield machine pore-forming, cave in there is also hole top or underground water is lost in and causes surface subsidence accident, economy damage
Social influence of becoming estranged is very big.At present, in order to avoid such case occurs, prevent from caving in and subsurface flow using soil layer freezing more
Lose.This method cost is high, and once power failure consequence is serious.
Utility model content
The technical problems to be solved in the utility model is：Due in boring procedure, the soil body at hole wall is unstable often to lead
Cause collapse hole；After even if drilling is formed, also often occur collapse hole in concreting process, cause quality accident；Shield
During machine pore-forming, prevent hole top from caving in be lost in underground water from hole wall.
In order to solve the above-mentioned technical problem, the utility model provides a kind of churning breast wall apparatus, drilling machine and shield machine into
It is respectively during hole：
Drilling machine churning breast wall apparatus, churning breast wall apparatus are depended on drill bit of drilling machine, there is cutter on drill bit, its feature exists
In：Including high pressure water mud tube, accelerator pipe, high pressure cement spray nozzle for slurry and retaining wall cylinder；The high pressure water mud tube and accelerator
Pipe is parallel, is arranged in the drill spindle that drilling machine carries, is connected in the drilling tool cylinder tail end that drilling machine carries with compressed water slurry nozzle；
The high pressure cement spray nozzle for slurry is arranged on drilling tool cylinder tail end edge, inside sets accelerator cavity, the high pressure water in face of the hole wall soil body
Slurry outlet and multiple accelerator outlets being distributed on high pressure cement spray nozzle for slurry madial wall, high pressure water mud is by high pressure cement
Slurry outlet sprays, and accelerator enters accelerator cavity and sprayed by accelerator outlet；The retaining wall cylinder is cylindrical shape, is arranged on drill bit
The drilling tool cylinder rear portion carried, the hole for allowing high pressure water mud to spray is left in high pressure cement spray nozzle for slurry part.
Shield machine churning breast wall apparatus, churning breast wall apparatus are depended on cutter head of shield machine, it is characterised in that：Including high pressure
Cement mortar and accelerator input unit, high pressure water mud tube, accelerator pipe, rotation crossover sub, high pressure cement spray nozzle for slurry and shield
Wall cylinder；The high pressure water mud, accelerator input unit are arranged on shield machine rear portion；The high pressure water mud tube and accelerator pipe
Parallel, high pressure water mud, accelerator input unit are connected, it is more pipelines that crossover sub punishment is rotated behind cutter head of shield machine
It is connected with compressed water slurry nozzle；The high pressure cement spray nozzle for slurry is arranged on cutter head of shield machine tail end edge, inside set accelerator cavity,
High pressure water slurry outlet and multiple accelerator outlets being distributed on high pressure cement spray nozzle for slurry madial wall in face of the hole wall soil body are high
Compressed water slurry is sprayed by high pressure water slurry outlet, and accelerator enters accelerator cavity and exports ejection by accelerator；The retaining wall cylinder
For tubular, cutter head of shield machine rear portion is arranged on, the hole for allowing high pressure water mud to spray, shield are left in high pressure cement spray nozzle for slurry part
There is cutter on machine knife disk.
Using above-mentioned technical proposal, high pressure water mud tube and accelerator pipe are parallel, can be by cement mortar and accelerator at the same time
High pressure cement spray nozzle for slurry is delivered to respectively.Cement mortar sprays at a high speed at high pressure cement spray nozzle for slurry, to being distributed in high pressure water mud
Accelerator outlet on nozzle madial wall produces negative pressure, and the accelerator suctioned out in accelerator cavity is mixed with cement mortar.So may be used
To ensure that cement mortar does not condense in pipeline, keep unimpeded, improve job stability and the service life of device.
Using above-mentioned technical proposal, high pressure cement spray nozzle for slurry is fixed on drilling tool cylinder or cutter head of shield machine trailing edge, face
To hole wall.When bit drills forward, high pressure water slurry jet intrusion hole week a certain range soil body, is stirred, makes its shape
Into cement and native mixture, the borehole wall-protection as tubular is finally consolidated.According to soil layer condition, cement mortar pressure, increase are adjusted
High pressure water slurry jet initial velocity, it is ensured that and increase borehole wall-protection thickness, meet that the hole wall of different pore size drilling is stablized.
Using above-mentioned technical proposal, the effect of retaining wall cylinder is to ensure cement that churning formed and native mixture before condensation
Free face shape.According to soil layer penetration rate, accelerator setting time is selected, determines the length of retaining wall cylinder, it can be ensured that cement mortar
The intensity for reaching basicly stable has been consolidated when exposing retaining wall cylinder rear portion with the mixture of soil.Water is only influenced in view of accelerator
The later strength of mud, borehole wall-protection are an interim stabilization problems, and later strength is nonsensical.Therefore, rapid hardening can suitably be increased
The dosage of agent, accelerates setting time.
Using above-mentioned technical proposal, quantity of the adjustment accelerator outlet on high pressure cement spray nozzle for slurry inner wall, distribution form,
Aperture, controllable accelerator dosage and the cement mortar sprayed as far as possible with high pressure water slurry outlet uniformly mix.When necessary, in height
While compressed water slurry jet stream produces negative pressure sucking-off accelerator, auxiliary applies accelerator pressure, is uniformly mixed it.In addition,
During high pressure water mud jet mixing hole Zhou Tuti, accelerator can also be futher stirred, and reach homogenization purpose.
Above-mentioned technical proposal is used in tunneling shield, since high-pressure rotary-spray liquid cement water-stagnating effect is fine, can be prevented
Hole top caves in during shield is lost in underground water from hole wall, avoids surface subsidence.
By above technical scheme and its effect as it can be seen that borehole wall-protection is formed using cement mortar as cementing material, do not lead
Rely on soil layer condition.Therefore drilling can be formed in nearly all soil layer such as clay soil, sandy soil, gravelly soil, sand pebble soil
Retaining wall, and prevent underground water from hole wall seepage flow.So the technical solution can solve soil layer drilling in pore-forming and concrete casting
The collapse hole problem of period.
Churning retaining wall implementation, its steps characteristic are：When a. drilling, actuating unit band cutter rotation is broken ground into
Hole；B. high pressure water mud and accelerator enter high pressure cement spray nozzle for slurry by high pressure water mud tube and accelerator pipe, and in this shape
Enter hole wall soil body certain depth into the high pressure water slurry jet after addition accelerator；C. high pressure cement spray nozzle for slurry is together with cutter
Rotary motion, the high pressure water mud jet mixing hole wall soil body, forms the cement after addition accelerator and native mixture；D. retaining wall cylinder
It is cylindrical shape to keep cement and native mixture, and starts to condense, when cement and native mixture expose from retaining wall cylinder, cement with
Native mixture, which has condensed, to be reached from steady intensity, ultimately forms borehole wall-protection.
Brief description of the drawings
Fig. 1 is the positive facade of structure and vertical section schematic diagram of the utility model embodiment 1；
Fig. 2 is the diagrammatic cross-section of the utility model embodiment 2；
Fig. 3 is the high pressure cement spray nozzle for slurry schematic diagram of the utility model embodiment 1,2；
Fig. 4 is the schematic cross section of the utility model embodiment 1.
In figure：1st, drill spindle；2nd, high pressure water mud tube；3rd, accelerator pipe；4th, high pressure cement spray nozzle for slurry；5th, drill spindle
With drill bit connecting device；6th, retaining wall cylinder；7th, drilling tool cylinder；8th, cutter；9th, high pressure water slurry jet；10th, accelerator cavity；11、
Accelerator exports；12nd, high pressure water slurry outlet；13rd, high pressure water mud, accelerator input unit；14th, crossover sub is rotated；15、
Cutter head of shield machine；16th, the other devices of shield machine.
Embodiment
The utility model is described in further detail with reference to the accompanying drawings and detailed description.Need to illustrate herein
, it is used to help understand the utility model for the explanation of these embodiments, but do not form the limit to the utility model
It is fixed.In addition, as long as technical characteristic involved in the utility model embodiment disclosed below does not form punching each other
It is prominent to be mutually combined.
Embodiment 1
In drilling machine pore-forming, the drill bit of drilling machine with churning breast wall apparatus as shown in Fig. 1, Fig. 3, Fig. 4 is used.Churning retaining wall fills
Put by：Drill spindle 1 is connected drilling tool cylinder 7 with drill bit connecting device 5 by drill spindle, and there is bit wing in 7 front end of drilling tool cylinder
Tool 8；High pressure water mud tube 2 reaches drilling tool cylinder 7 by the inside of drill spindle 1, then (can be divided into more pipelines) in drilling tool cylinder
7 edge of body is connected with high pressure cement spray nozzle for slurry 4；Accelerator pipe 3 is arranged on inside high pressure water mud tube 2, is gone together therewith；High pressure water
Mud nozzle 4 is located at is directed toward hole wall in 7 trailing edge of drilling tool cylinder, and cement mortar is sprayed by high pressure water slurry outlet 12, is formed
High pressure water slurry jet 9；Accelerator pipe 3 connects accelerator cavity 10 at 4 position of high pressure cement spray nozzle for slurry, and accelerator passes through rapid hardening
Agent outlet 11 sprays；Retaining wall cylinder 6 is arranged on 7 afterbody of drilling tool cylinder, is equipped with 4 position of high pressure cement spray nozzle for slurry and allows high pressure water mud
The hole that jet stream 9 sprays.
The accelerator outlet 11 is arranged on inside high pressure cement spray nozzle for slurry 4, and accelerator is produced using high pressure water slurry jet 9
Raw negative pressure is sprayed to be mixed with cement mortar, can also apply certain aux. pressure.
The length of the retaining wall cylinder 6 is determined by cement mortar rate of set and penetration rate, ensures the mixing of cement mortar and soil
Body has consolidated the intensity for reaching basicly stable when exposing retaining wall 6 rear portion of cylinder.
Using the forming hole method of churning breast wall apparatus：
(1) drill spindle 1 drives drilling tool cylinder 7 and lower end away drill cuttings 8 to rotate the pore-forming that breaks ground downwards when drilling；
(2) high pressure water mud and accelerator enter high pressure cement spray nozzle for slurry 4 by high pressure water mud tube 2 and accelerator pipe 3,
And form high pressure water mud and accelerator mixture when spraying；
(3) high pressure water mud and accelerator mixture spray into hole wall and form high pressure water slurry jet 9；
(4) moved downward since high pressure cement spray nozzle for slurry 4 rotates together with drilling tool cylinder 7, high pressure water slurry jet 9 stirs
The hole wall soil body, forms the cement after addition accelerator and native mixture；
(5) when drilling tool cylinder 7 continues rotation and moves downward, it is cylindrical shape that retaining wall cylinder 6, which keeps cement and native mixture, together
When cement and native mixture rapid condensation；
(6) when cement and native mixture expose from 6 top of retaining wall cylinder, basic setting strength is had reached, can be from surely；
(7) as drilling continues downwards, cement and native mixture continue to condense, and ultimately form borehole wall-protection.
Embodiment 2
During tunnel shield machine pore-forming, using the shield machine with churning breast wall apparatus, as shown in Figures 2 and 3.Shield machine churning
Breast wall apparatus includes high pressure water mud and accelerator input unit 13, high pressure water mud tube 2, accelerator pipe 3, rotation crossover sub
14th, high pressure cement spray nozzle for slurry 4 and retaining wall cylinder 6.High pressure water mud, accelerator input unit 13 are arranged on shield machine rear portion.High pressure
Cement mortar pipe 2 and accelerator pipe 3 are parallel, and connection high pressure water mud, accelerator input unit 13, revolve behind cutter head of shield machine 15
Turn the punishment of crossover sub 14 for more pipelines with compressed water slurry nozzle 4 to be connected.The function of rotating crossover sub 14 is not rotate
Pipeline be converted to rotatable pipeline.High pressure cement spray nozzle for slurry 4 is arranged on 15 tail end edge of cutter head of shield machine, inside sets rapid hardening
Agent cavity 10, the high pressure water slurry outlet 12 in face of the hole wall soil body and multiple it is distributed on 4 madial wall of high pressure cement spray nozzle for slurry
Accelerator outlet 11.High pressure water mud is sprayed by high pressure water slurry outlet 12, and accelerator enters accelerator cavity 10 by accelerator
Outlet 11 sprays.Retaining wall cylinder 6 is tubular, is arranged on 15 rear portion of cutter head of shield machine, is left in 4 part of high pressure cement spray nozzle for slurry and allows height
, there is cutter 8 in the hole that compressed water slurry sprays on cutter head of shield machine 15.There is the other devices 16 of shield machine at 15 rear portion of cutter head of shield machine.
Accelerator outlet 11 is arranged on inside high pressure cement spray nozzle for slurry 4, and accelerator is produced using high pressure water slurry jet 9
Negative pressure is sprayed to be mixed with cement mortar, can also apply certain aux. pressure.
The length of retaining wall cylinder 6 is determined by cement mortar rate of set and penetration rate, ensures that cement mortar and the mixture of soil exist
The intensity for reaching basicly stable has been consolidated when exposing retaining wall 6 rear portion of cylinder.
Using the forming hole method of churning breast wall apparatus：
(1) shield machine posterior means driving shield machine knife disk 15 and shield machine cutter 8 rotates the pore-forming that breaks ground forward thereon；
(2) high pressure water mud and accelerator enter high pressure cement spray nozzle for slurry 4 by high pressure water mud tube 2 and accelerator pipe 3,
And form high pressure water mud and accelerator mixture when spraying；
(3) high pressure water mud and accelerator mixture spray into hole wall and form high pressure water slurry jet 9；
(4) due to high pressure cement spray nozzle for slurry 4 together with cutter head of shield machine 15 rotary advanced movement, high pressure water slurry jet 9
The hole wall soil body is stirred, forms the cement after addition accelerator and native mixture；
(5) when cutter head of shield machine 15 continues rotary advanced movement, it is cylindrical shape that retaining wall cylinder 6, which keeps cement and native mixture,
Shape, while cement and native mixture rapid condensation；
(6) when cement and native mixture expose from 6 rear portion of retaining wall cylinder, basic setting strength is had reached, can be from surely；
(7) as shield continues pore-forming forward, cement and native mixture continue to condense, and ultimately form borehole wall-protection.
According to shield tunnel diameter and geological conditions, gunite pressure is adjusted, can be formed and ensure cavern
Interim stabilization and the dado thickness for preventing that underground water from penetrating into from hole wall.
The embodiment of the utility model is explained in detail above in association with attached drawing, but the utility model is not limited to be retouched
The embodiment stated.For a person skilled in the art, it is right in the case where not departing from the utility model principle and spirit
These embodiments carry out a variety of change, modification, replacement and modification, still fall within the scope of protection of the utility model.
Claims (4)
1. drilling machine churning breast wall apparatus, churning breast wall apparatus are depended on drill bit of drilling machine, there is cutter (8) on drill bit, its feature exists
In：Including high pressure water mud tube (2), accelerator pipe (3), high pressure cement spray nozzle for slurry (4) and retaining wall cylinder (6)；The high pressure cement
Slurry pipe (2) and accelerator pipe (3) parallel, are arranged in the drill spindle (1) that drilling machine carries, in the drilling tool cylinder that drilling machine carries
(7) tail end is connected with compressed water slurry nozzle (4)；The high pressure cement spray nozzle for slurry (4) is arranged on drilling tool cylinder (7) tail end edge,
Inside set accelerator cavity (10), the high pressure water slurry outlet (12) in face of the hole wall soil body and multiple be distributed in high pressure cement spray nozzle for slurry
(4) the accelerator outlet (11) on madial wall, high pressure water mud are sprayed by high pressure water slurry outlet (12), and accelerator enters rapid hardening
Agent cavity (10) exports (11) by accelerator and sprays；The retaining wall cylinder (6) is cylindrical shape, is arranged on the drilling tool cylinder that drill bit carries
(7) rear portion, the hole for allowing high pressure water mud to spray partly is left in high pressure cement spray nozzle for slurry (4).
2. shield machine churning breast wall apparatus, churning breast wall apparatus is depended on cutter head of shield machine (15), it is characterised in that：Including height
Compressed water slurry and accelerator input unit (13), high pressure water mud tube (2), accelerator pipe (3), rotation crossover sub (14), height
Compressed water slurry nozzle (4) and retaining wall cylinder (6)；The high pressure water mud, accelerator input unit (13) are arranged on shield machine rear portion；
The high pressure water mud tube (2) and accelerator pipe (3) parallel, connect high pressure water mud, accelerator input unit (13), in shield
Machine knife disk (15) rotates crossover sub (14) punishment and is connected for more pipelines with compressed water slurry nozzle (4) below；The high pressure water
Mud nozzle (4) is arranged on cutter head of shield machine (15) tail end edge, inside sets accelerator cavity (10), the high pressure in face of the hole wall soil body
Cement mortar exports (12) and multiple accelerator outlets (11) being distributed on high pressure cement spray nozzle for slurry (4) madial wall, high pressure cement
Slurry is sprayed by high pressure water slurry outlet (12), and accelerator enters accelerator cavity (10) and exports (11) ejection by accelerator；It is described
Retaining wall cylinder (6) is tubular, is arranged on cutter head of shield machine (15) rear portion, is partly left in high pressure cement spray nozzle for slurry (4) and allows high pressure water
, there is cutter (8) in the hole that mud sprays on cutter head of shield machine (15).
3. churning breast wall apparatus as claimed in claim 1 or 2, it is characterised in that：The accelerator outlet (11) is arranged on height
On the outside of compressed water slurry outlet (12), being connected with accelerator cavity (10), high pressure water mud sprays the negative pressure produced and suctions out accelerator,
It is mixed into high pressure water slurry jet (9).
4. churning breast wall apparatus as claimed in claim 1 or 2, it is characterised in that：The high pressure water mud tube (2) and accelerator
It can be more branch pipes to manage (3).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2017203828785 | 2017-04-13 | ||
| CN201720382878 | 2017-04-13 |
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| Publication Number | Publication Date |
|---|---|
| CN207278235U true CN207278235U (en) | 2018-04-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720463047.0U Active CN207278235U (en) | 2017-04-13 | 2017-04-28 | Drilling machine, shield machine churning breast wall apparatus |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106948790A (en) * | 2017-04-13 | 2017-07-14 | 叶晓明 | Rig, shield machine churning breast wall apparatus and construction method |
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2017
- 2017-04-28 CN CN201720463047.0U patent/CN207278235U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106948790A (en) * | 2017-04-13 | 2017-07-14 | 叶晓明 | Rig, shield machine churning breast wall apparatus and construction method |
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