CN206608175U - Shield machine reaches reception short sleeve device - Google Patents
Shield machine reaches reception short sleeve device Download PDFInfo
- Publication number
- CN206608175U CN206608175U CN201720299889.7U CN201720299889U CN206608175U CN 206608175 U CN206608175 U CN 206608175U CN 201720299889 U CN201720299889 U CN 201720299889U CN 206608175 U CN206608175 U CN 206608175U
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- CN
- China
- Prior art keywords
- ring
- steel bushing
- shield machine
- steel
- bushing body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The utility model provides a kind of shield machine and reaches reception short sleeve device.The short sleeve device includes the corresponding steel bushing body of shield machine and rear end cap, it is characterised in that：In steel bushing body ring packing steel brush and ring-shaped flexible seal member are provided with close to the position of opening end, and ring packing steel brush is close to built-in steel sleeve, the ring-shaped flexible seal member is made up of ring-shaped rubber cord and polylith cord pressing plate, ring-shaped rubber cord outer shroud edge is close to the inwall of steel bushing body, polylith cord pressing plate is distributed in outside ring-shaped rubber cord in a ring, and cord pressing plate and ring-shaped rubber cord are fixed on the inwall of steel bushing body by connecting elements；Slip casting pipe joint and greasing pipe joint are provided with steel bushing body.The utility model had both solved the problems, such as the closure of portal termination, in turn ensured that the sealing for excavating gap, it is to avoid because portal termination and excavate gap sealing it is bad the problem of cause surface subsidence or cave in.
Description
Technical field
The utility model is related to shield tunnel construction field, and specifically a kind of shield machine reaches reception short sleeve device.
Background technology
The risk that the arrival of shield machine is received than shield launching, shield driving in shield-tunneling construction is big.Early stage is in geology
The location that condition is poor, stratum is unstable, the termination that shield machine reaches received well must all take various reinforcing means to change ground
The stabilization of layer, during ensureing that shield machine is reached.But many formation conditions are all difficult to ensure that it adds using what reinforcing means
Stereoplasm amount, makes shield machine there is great risk during reaching.So, people adopted in the shield received well of geology difference in recent years
Shield machine is received with the form received with water and steel bushing is received, in shield machine with reaching portal transient equilibrium received well termination
Stressor layer, prevents the soil erosion on stratum from causing surface subsidence or caving in.
It is to need received well to isolate closure with station that wherein shield machine, which reaches band water and received, is then returned according to strata condition
Part sand is filled out, then is poured water in received well.Because sand backfill is how many and water level pours into height and regards formation properties and underground water
Position determines that isolation closure barricade typically uses reinforced concrete structure, it is desirable to certain compression strength and sealing, along with shield
Structure machine is received after portal block, and block wall will also be removed, compare in this way take a lot of work, it is time-consuming, take material.Shield machine is reached
Steel bushing is received, and is one steel bushing of pre-production, and shield machine is arranged on steel bushing and the pre-buried steel ring welding of portal before reaching
Together, and in steel bushing seal head end reaction frame firm supporting, rear pressure test leak-detecting is installed, sand is then poured into steel bushing
Or mud (depending on EPB shield tunneling and slurry shield).This method makes desired strength for steel bushing and precision is higher, and assembly is got up
Ne-leakage is wanted, shield machine must not be deformed when entering sleeve, and its installation difficulty is larger.
To sum up two kinds of shields receive mode, although risk when can preferably control the shield machine to reach, but respectively have its excellent
Shortcoming, generally speaking implements all comparatively laborious.
Existing shield machine reception, which has the risk origin cause of formation, mainly two：First, when shield machine is reached, in the wink for abolishing portal
Between, cutterhead periphery and otch ring surrounding formations are opened wide completely, and the dregs in stratum is under the pressure souring of underground water by wink
Between take out of, cause surface subsidence or cave in, received well is flooded in serious meeting；Second, when shield machine otch ring passes through portal steel loop
Afterwards, such as space not in time between closing shield machine and excavation stratum, it can also be taken away under the pressure effect of underground water in stratum
Dregs, cause surface subsidence or cave in.As long as controlling above-mentioned 2 origin causes of formation, it is lost in regard to the dregs in stratum can be controlled,
So as to ensure that the sinking of earth's surface and cave in, to control at above-mentioned 2 points to accomplish that cutterhead abolishes portal moment to shield machine
The faces end head plugging of cutterhead front end；After shield machine otch ring is by pre-buried portal steel loop, between shield machine external diameter and excavation stratum
Gap seals closure；And existing shield reception device can not all solve the two problems.
The content of the invention
The utility model provides a kind of shield machine according to the deficiencies in the prior art and reaches reception short sleeve device, the device
Can be by shortening length sleeve, and increase special sealing structure, the closure of portal termination can be both solved, be can ensure that out again
Dig the sealing in gap, solve because portal termination and excavate gap sealing it is bad the problem of cause surface subsidence or cave in.
The technical scheme that the utility model is provided：A kind of shield machine reaches reception short sleeve device, including shield
The corresponding steel bushing body of machine and rear end cap is fixedly connected with steel bushing, the opening end and built-in steel sleeve of the steel bushing body
Connection, it is characterised in that：In steel bushing body ring packing steel brush and ring-shaped flexible seal structure are provided with close to the position of opening end
Part, and ring packing steel brush is close to built-in steel sleeve, the ring-shaped flexible seal member is by ring-shaped rubber cord and polylith curtain
Cloth pressing plate is constituted, and ring-shaped rubber cord outer shroud edge is close to the inwall of steel bushing body, and polylith cord pressing plate is distributed in a ring
Outside ring-shaped rubber cord, and cord pressing plate and ring-shaped rubber cord are fixed on to by connecting elements the inwall of steel bushing body
On；Slip casting pipe joint and greasing pipe joint are provided with steel bushing body.
The utility model preferably technical scheme：The length of the steel bushing body be 3-4m, be by upper half sleeve and under
Half sleeve is formed by connecting by flange plate bolt, and the rear end cap is provided with counter-force ring with steel bushing body connection end, and by anti-
Power ring is connected with steel bushing body, and the pressure relief opening of flanged lid is provided with upper half sleeve, and flanged lid is provided with rear end cap
Inspection dog-house.
The utility model preferably technical scheme：The barrel of the steel bushing body is concaveconvex structure, the annular flexible
Every piece of cord pressing plate of containment member is formed by fixation clip and movable pressing board hinge connection, and ring-shaped rubber cord passes through cord
The fixation clip of pressing plate fixes the male and fomale(M＆F) for being crimped on steel bushing body with connecting bolt.
The utility model preferably technical scheme：The ring-shaped rubber cord of the ring-shaped flexible seal member is using double-deck rubber
Rubberized cord, the fissure of displacement is installed when two layers of rubber seal is assembled.
The utility model preferably technical scheme：The ring packing steel brush uses length 260mm, angle：45 ° of shield
Machine shield tail brush.
The utility model preferably technical scheme：The slip casting pipe joint and greasing pipe joint have four, scattering device
On upper half sleeve, each joint is constituted by connecting tube and ball valve.
The utility model preferably technical scheme：At upper half sleeve and lower half docking sleeve face and steel bushing body and end
Lid joint face smears fluid sealant or is provided with sealing gasket.
The utility model shortens the length of sleeve, and its manufacture craft is easier, makes requirement and cost of manufacture significantly
In the case of reduction, well head limited space, it is more easily installed than a full set of cylinder, technique is optimized with cost；And increase in sleeve
Add sealing steel brush and cord sealing structure, it is ensured that the sealing effectiveness between shield body and portal, both solve the envelope of portal termination
Stifled problem, in turn ensure that the sealing for excavating gap, it is to avoid because portal termination and excavating the sealing in gap and bad causing earth's surface
The problem of sinking or cave in.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is Fig. 1 A direction views；
Fig. 3 is Fig. 1 side view；
Fig. 4 is Fig. 1 top view；
Fig. 5 is seal scheme of installation of the present utility model；
Fig. 6 is cord pressing plate distribution schematic diagram of the present utility model.
In figure：1-steel bushing body, 1-1-upper half sleeve, 1-2-lower half sleeve, 2-rear end cap, 3-pre-buried steel bushing
Cylinder, 4-ring packing steel brush, 5-ring-shaped flexible seal member, 5-1-ring-shaped rubber cord, 5-2-cord pressing plate, 5-3-
Bolt, 6-slip casting pipe joint, 7-greasing pipe joint, 8-pressure relief opening, 9-check dog-house, 10-counter-force ring.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings.As shown in Figures 1 to 4, a kind of shield machine is arrived
Up to reception short sleeve device, including the corresponding steel bushing body 1 of shield machine and rear end cap 2 is fixedly connected with steel bushing, it is described
The opening end of steel bushing body 1 is connected with built-in steel sleeve 3, is welded using full weld, it is characterised in that：The steel bushing body 1
Length be 3-4m, be to be formed by connecting by upper half sleeve 1-1 and lower half sleeve 1-2 by flange plate bolt, the rear end cap 2 with
The connection end of steel bushing body 1 is provided with counter-force ring 10, and is connected by counter-force ring 10 with steel bushing body 1, counter-force ring 10 and steel bushing
Connected between cylinder body 1 also by flange plate bolt, in upper half sleeve 1-1 and lower half sleeve 1-2 interfaces and steel bushing sheet
Body 1 smears fluid sealant or is provided with sealing gasket with end cap joint face, and the pressure relief opening of flanged lid is provided with upper half sleeve 1-1
8, the inspection dog-house 9 of flanged lid is provided with rear end cap 2, Grouting Pipe is provided with the upper half sleeve 1-1 of steel bushing body
Joint 6 and greasing pipe joint 7, the slip casting pipe joint 6 and greasing pipe joint 7 have four, each joint by connecting tube and
Ball valve is constituted.
As shown in Figure 3 and Figure 5, it is soft provided with ring packing steel brush 4 and annular close to the position of opening end in steel bushing body 1
Property containment member 5, and ring packing steel brush 4 is close to built-in steel sleeve 3, and ring packing steel brush 4 uses length 260mm, angle：
45 ° of shield machine shield ventral brush, the ring-shaped flexible seal member 5 is by ring-shaped rubber cord 5-1 and polylith cord pressing plate 5-2 groups
Into ring-shaped rubber cord 5-1 uses double-layer rubber cord, and the fissure of displacement is installed when two layers of rubber seal is assembled, every piece of cord pressing plate 5-
2 are formed by fixation clip and movable pressing board hinge connection；Install for convenience, the barrel of the steel bushing body 1 is bumps
Structure, ring-shaped rubber cord 5-1 outer shrouds edge is close to the male and fomale(M＆F) of the inwall of steel bushing body 1, as shown in fig. 6, polylith cord
Pressing plate 5-2 is distributed in outside ring-shaped rubber cord 5-1 in a ring, and by connecting bolt 5-3 by cord pressing plate 5-2 and ring-shaped rubber
Cord 5-1 is fixed on the inwall of steel bushing body 1, and connecting bolt 5-3 uses 8.8 grade high-strength bolts, the diameter of bolt
M27X100, spiro rod length：100mm, quantity：368.
The counter-force support of the utility model sleeve is supported on the counter-force ring of half sleeve using shield launching reaction frame, instead
The footing of power frame should be with being embedded in the steel plate firm welding received on the plate of shaft bottom, and diagonal brace is supported on the step at received well rear portion,
Ensure reaction frame firm supporting.Sleeve must carry out hydraulic pressure test after installing, test pressure is to check sleeve in 3bar, test
Deformation is whether there is, whether each seam and weld seam have seepage；Sleeve force due to centrifugal action has been tested after no problem, test water is drained, from sleeve
The charging port in portion is filled into sleeve containing the medium coarse sand that mud is 30%~40%, Full Ratio 85%~90%, institute on closure sleeve
Some valve and cover plate, wait shield machine to enter.
When receiving shield machine arrival using the utility model, 8 meters before shield machine reaches portal, driving speed control exists
Within 15mm/min, when shield machine reaches diaphragm wall, driving speed is controlled in 3mm/min, fiber bar is rubbed as far as possible, to protect steel
Ventral brush sealing in sleeve；When balancing earth-pressure shielding machine has abolished diaphragm wall soon, air pressure is protected as far as possible, and controlling dregs should not extrude
Onto the end cap of steel bushing, after shield machine has broken diaphragm wall, cutterhead just forbids rotation 8, promotes and slags tap and does not stop；Treat shield machine
After otch ring is by steel bushing ring packing steel brush 4, cutterhead is further continued for rotating, but rotating speed control is within 0.4rpm, shield machine
After otch ring is by ring packing steel brush 4 (at least 300mm), shield machine stops promoting, then as far as possible in clear clean steel bushing
Pressure in dregs, muddy water storehouse or native storehouse continues to keep, and from the access Grouting Pipe injection inertia slurry of steel bushing slip casting pipe joint 6 or
Horizontal shield mud (gram force effect), injects a small amount of shield tail grease, in shield machine shield tail from the access grease ascending pipe of steel bushing greasing pipe joint 7
When not deviating from sleeve seal shield tail brush, single liquid inert slurry can only be filled；After inertia slurry and grease have been noted, Tu Cang is slowly reduced
Or muddy water storehouse pressure, 50% or so of former pressure is down to, is stopped 15 minutes, whether pressure gos up in observation storehouse, if any continuation of ging up
Inertia slurry is noted, as pressure in storehouse is down to 0bar without ging up.Stablize after 1.5 hours, opening the lower flange cover plate of end cap 2；
After stabilization in storehouse, reaction frame and end cap are removed, dregs is cleared up, shield acceptance frame is loaded onto, continues to promote shield machine, progradation
In examine shield machine circumferential weld and whether there is spillage leak, and continue to fill inertia by steel bushing slip casting pipe joint 6 and starch, work as shield
Machine shield tail stops promoting when will deviate from steel bushing ventral brush, dual slurry is noted by the inlet of slip casting pipe joint 6, when note a to level pressure
After power, the abjection of shield machine shield tail is promoted, dual slurry should not stop during shield driving, continue to block portal；Portal has been blocked
Remove shield machine afterwards (appropriate location when shield machine is promoted can first remove cutterhead).
Claims (7)
1. a kind of shield machine reaches reception short sleeve device, including the corresponding steel bushing body (1) of shield machine and and steel bushing
Rear end cap (2) is fixedly connected with, the opening end of the steel bushing body (1) is connected with built-in steel sleeve (3), it is characterised in that：
Steel bushing body (1) is provided with ring packing steel brush (4) and ring-shaped flexible seal member (5), and annular close to the position of opening end
Steel brush (4) is sealed close to built-in steel sleeve (3), the ring-shaped flexible seal member (5) is by ring-shaped rubber cord (5-1) and many
Block cord pressing plate (5-2) is constituted, and ring-shaped rubber cord (5-1) outer shroud edge is close to the inwall of steel bushing body (1), polylith curtain
Cloth pressing plate (5-2) is distributed in ring-shaped rubber cord (5-1) outside in a ring, and by connecting elements by cord pressing plate (5-2) and ring
Shape rubber cord (5-1) is fixed on the inwall of steel bushing body (1)；Slip casting pipe joint (6) is provided with steel bushing body (1)
With greasing pipe joint (7).
2. a kind of shield machine according to claim 1 reaches reception short sleeve device, it is characterised in that：The steel bushing
The length of body (1) is 3-4m, is to be formed by connecting by upper half sleeve (1-1) and lower half sleeve (1-2) by flange plate bolt, institute
State rear end cap (2) and be provided with counter-force ring (10) with steel bushing body (1) connection end, and pass through counter-force ring (10) and steel bushing body
(1) connect, the pressure relief opening (8) of flanged lid is provided with upper half sleeve (1-1), flanged lid is provided with rear end cap (2)
Check dog-house (9).
3. a kind of shield machine according to claim 1 or 2 reaches reception short sleeve device, it is characterised in that：The steel
The barrel of sleeve body (1) is concaveconvex structure, and every piece of cord pressing plate (5-2) of the ring-shaped flexible seal member (5) is by solid
Fixed pressuring plate and movable pressing board hinge connection are formed, fixation clip and company of the ring-shaped rubber cord (5-1) by cord pressing plate (5-2)
The fixed male and fomale(M＆F) for being crimped on steel bushing body (1) of connecting bolt (5-3).
4. a kind of shield machine according to claim 1 or 2 reaches reception short sleeve device, it is characterised in that：The ring
The ring-shaped rubber cord (5-1) of shape flexible seal member (5) uses double-layer rubber cord, and the fissure of displacement is pacified when two layers of rubber seal is assembled
Dress.
5. a kind of shield machine according to claim 1 or 2 reaches reception short sleeve device, it is characterised in that：The ring
Shape sealing steel brush (4) uses length 260mm, angle：45 ° of shield machine shield ventral brush.
6. a kind of shield machine according to claim 2 reaches reception short sleeve device, it is characterised in that：The Grouting Pipe
Joint (6) and greasing pipe joint (7) have four, scattering device on upper half sleeve (1-1), each joint by connecting tube and
Ball valve is constituted.
7. a kind of shield machine according to claim 2 reaches reception short sleeve device, it is characterised in that：In upper half sleeve
(1-1) and lower half sleeve (1-2) interface and steel bushing body (1) are smeared fluid sealant with end cap joint face or are provided with close
Packing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720299889.7U CN206608175U (en) | 2017-03-24 | 2017-03-24 | Shield machine reaches reception short sleeve device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720299889.7U CN206608175U (en) | 2017-03-24 | 2017-03-24 | Shield machine reaches reception short sleeve device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206608175U true CN206608175U (en) | 2017-11-03 |
Family
ID=60171886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720299889.7U Expired - Fee Related CN206608175U (en) | 2017-03-24 | 2017-03-24 | Shield machine reaches reception short sleeve device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206608175U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108019213A (en) * | 2017-12-22 | 2018-05-11 | 中铁十六局集团北京轨道交通工程建设有限公司 | A kind of portal abnormal shape sleeve arrangement |
| CN108086986A (en) * | 2018-01-24 | 2018-05-29 | 中铁工程装备集团机电工程有限公司 | A kind of shield reception steel bushing |
| CN108843337A (en) * | 2018-06-15 | 2018-11-20 | 中铁十二局集团有限公司 | A kind of construction method carrying out shield launching using short sleeve |
| CN112031790A (en) * | 2019-06-04 | 2020-12-04 | 江苏迅拓机械有限公司 | Opening extending and sealing originating steel ring |
-
2017
- 2017-03-24 CN CN201720299889.7U patent/CN206608175U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108019213A (en) * | 2017-12-22 | 2018-05-11 | 中铁十六局集团北京轨道交通工程建设有限公司 | A kind of portal abnormal shape sleeve arrangement |
| CN108086986A (en) * | 2018-01-24 | 2018-05-29 | 中铁工程装备集团机电工程有限公司 | A kind of shield reception steel bushing |
| CN108843337A (en) * | 2018-06-15 | 2018-11-20 | 中铁十二局集团有限公司 | A kind of construction method carrying out shield launching using short sleeve |
| CN112031790A (en) * | 2019-06-04 | 2020-12-04 | 江苏迅拓机械有限公司 | Opening extending and sealing originating steel ring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171103 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |