CN105065010B - A kind of shield band water receives portal temporary sealing devices and encapsulating method - Google Patents
A kind of shield band water receives portal temporary sealing devices and encapsulating method Download PDFInfo
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- CN105065010B CN105065010B CN201510418185.2A CN201510418185A CN105065010B CN 105065010 B CN105065010 B CN 105065010B CN 201510418185 A CN201510418185 A CN 201510418185A CN 105065010 B CN105065010 B CN 105065010B
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Abstract
Portal temporary sealing devices are received the invention discloses a kind of shield band water, including：Multiple bases, it is evenly distributed on pre-buried steel loop circumference；Steel spring plate beam, it includes one or more spring steel flaggies, is made up of multiple steel spring plates and forms cyclic structure, and the length of steel spring plate is less than the radius of pre-buried steel loop；Multiple pressing plates, it is evenly distributed on steel spring plate beam and is oppositely arranged with multiple bases, and one end of pressing plate is bent to received well direction with certain radian.Portal temporary sealing method is received the invention also discloses a kind of shield band water.The temporary sealing devices of the present invention, steel spring plate is adjacent to shield outer wall using own resilience and section of jurisdiction outer wall realizes the purpose of blocking stratum soil erosion.The temporary sealing method of the present invention, the problem of solving portal sealing performance difficulty under band water reception condition is simple to operate, reduces manpower, improves efficiency, to obtain preferably interim portal sealing effectiveness.
Description
Technical field
The invention belongs to shield tunnel project technical field, and in particular to a kind of shield is interim with the portal that water receives construction
Sealing device and encapsulating method.
Background technology
Current city shield tunnel is in the high speed development stage, and shield-tunneling construction mode is constantly brought forth new ideas, and shield receives mode
Update to reduce construction risk, wherein the risk that engineering method significantly reduces shield reception is received with water, especially in stability
In the more stratum of difference, water content, band water receives form of construction work and gradually popularized, and traditional reception portal sealing structure is by rubber curtain
Cloth, folding pressing plate are constituted, and sealing is realized by the way of steel wire rope is tightened up, but in the case where band water is received, rubber cord
Protection is difficult, cracky, and the performance difficulty under band water reception condition, and execute-in-place difficulty is larger.
The content of the invention
It is an object of the invention to solve at least the above and/or defect, and provide at least will be described later excellent
Point.
Portal temporary sealing devices are received it is a still further object of the present invention to provide a kind of shield band water, steel spring plate is utilized
Own resilience is adjacent to shield outer wall and section of jurisdiction outer wall realizes the purpose for blocking stratum soil erosion.
A further object of the invention is to receive portal temporary sealing method by shield band water, solves band water reception condition
It is the problem of lower portal sealing performance difficulty, simple to operate, manpower is reduced, efficiency is improved, it is close to obtain preferably interim portal
Seal effect.
In order to realize that there is provided a kind of shield band water reception portal is interim according to object of the present invention and further advantage
Sealing device, it is arranged on the pre-buried steel loop of the portal of received well, and the shield enters through the temporary sealing devices to be connect
The received well of the shield is received, including：
Multiple bases, it is evenly distributed on the pre-buried steel loop on the side circumference of the received well；
Steel spring plate beam, it includes one or more spring steel flaggies, for any one spring steel flaggy by multiple edges
The pre-buried steel loop circumference is constituted to the steel spring plate for the equal length being evenly distributed on the multiple base, and arbitrary neighborhood
Two steel spring plate abutting contacts so that the spring steel flaggy formation cyclic structure, wherein, for any one steel spring plate,
Its one end is fixed on base, and the other end is free end, and the length of the steel spring plate is less than the radius of the pre-buried steel loop；It is many
Individual pressing plate, it is evenly distributed on the steel spring plate beam and is oppositely arranged with the multiple base, and the pressing plate is close to described
One end of the free end of steel spring plate is bent to the received well direction with certain radian.
Preferably, described shield band water receives portal temporary sealing devices, and the steel spring plate beam includes：Multiple bullets
Spring steel plate layer, it includes being sequentially overlapped the first steel spring plate group and second spring steel plate group of installation along the received well direction,
The first steel spring plate group includes multiple the first spring steel flaggies being oppositely arranged, and constitutes the multiple first spring steel flaggy
Steel spring plate length it is consistent, the second spring steel plate group includes multiple second spring steel plate layers being staggered, composition
The length of the steel spring plate of the second spring steel plate layer is successively decreased along the received well direction, and is respectively less than and is constituted the multiple the
The length of the steel spring plate of one spring steel flaggy.
Preferably, described shield band water receives portal temporary sealing devices, constitutes the first spring steel flaggy
The length of steel spring plate is set to：When the shield passes through the pre-buried steel loop, the first spring steel flaggy and the shield
Interfere, when the shield installs section of jurisdiction, the first spring steel flaggy is interfered with the section of jurisdiction.
Preferably, described shield band water receives portal temporary sealing devices, and the multiple base is provided with multiple the
One through hole, one end of the steel spring plate beam are provided with multiple third through-holes provided with multiple second through holes, the multiple pressing plate, tightly
Firmware is through the first through hole, the second through hole and third through-hole by the base, one end of the steel spring plate beam and described
Pressing plate is fixedly connected.
Preferably, described shield band water receives portal temporary sealing devices, and the first through hole is equipped with for inside
The bellmouth of dormant bolt, the dormant bolt pass through the first through hole, second through hole and the third through-hole after with
Pad nut thread is connected, and one end of the base, the steel spring plate beam is fixedly connected with the pressing plate.
Preferably, described shield band water receives portal temporary sealing devices, and the pre-buried steel loop is provided with the first note
Hole is starched, it is connected with the built-in slip casting pipe being embedded in inwall.
Preferably, described shield band water receives portal temporary sealing devices, and the steel spring plate beam is included described in 3
First spring steel flaggy and 5 second spring steel plate layers.
Preferably, described shield band water receives portal temporary sealing devices, and the material of the steel spring plate beam is
65Mn。
Preferably, described shield band water receives portal temporary sealing devices, for any one of steel spring plate,
Its thickness is 1mm.
A kind of described shield receives the encapsulating method of portal temporary sealing devices with water, comprises the following steps：
The pre-buried steel loop is set the firstth, at the portal of the received well, and first injected hole is set and described
Grouting Pipe, the base is welded on the circumference of the pre-buried steel loop, and the steel spring plate beam and the pressing plate are installed successively, with
The steel spring plate beam is compressed, cutting for the portal is carried out in the case of steel spring plate beam described in without prejudice to；
Secondth, sand is backfilled in received well, and is poured water to specified liquid level；
3rd, stop cutterhead when the shield releases the portal to rotate, the shield is contacted after the steel spring plate beam,
The steel spring plate tightens the outer wall for pasting the shield and the space beyond it is separated into two separate spaces, the shield
Grouting behind shaft or drift lining hole is to space slip casting not with the received well insertion, and the shield tail brush to the shield departs from the steel spring plate
Beam；
4th, after the shield is released, the last a piece of of the shield installation is close to after the steel spring plate beam resilience
Space beyond it is simultaneously separated into two separate spaces, the secondary grouting hole of the section of jurisdiction and first note by the outer wall of section of jurisdiction
Hole is starched to portal closure slip casting is not carried out simultaneously with the space of the received well insertion, temporary sealing system is formed.
The present invention at least includes following beneficial effect：
Firstth, temporary sealing devices of the invention are arranged on pre-buried steel loop, are pacified successively by the circumference in pre-buried steel loop
Base, steel spring plate beam and pressing plate are filled, one end of steel spring plate beam is fixed on pre-buried steel loop, spring when shield passes through portal
Steel plate bundle is close to shield outer wall circumference, and the mud between the outer wall of shield and surrounding soil dodge gate steel loop is stopped with extraneous,
When shield is moved on, last group of section of jurisdiction is installed at portal, steel spring plate tightens patch section of jurisdiction outer wall circumference, section of jurisdiction and surrounding
Mud between the soil body or portal steel loop is stopped with extraneous, and the first injected hole realizes temporary sealing to the space slip casting of portal side
Purpose；
Secondth, floor installation is on the circumference of pre-buried steel loop so that each steel spring plate can be arranged on base
To be fixed on pre-buried steel loop, spring steel flaggy includes connecting still between the steel spring plate of multiple abutting contacts, steel spring plate
It is not fixedly connected, easy for removal and installation, radius is less than the cyclic structure of pre-buried steel loop, is easy to form the section for intercepting mud
Layer, pressing plate is relative one by one with base so that the one end for the steel spring plate being clipped in the middle tightly is fixed, and forms sealed section, pressure
The other end of plate is bent with certain radian, it is ensured that with pressing plate contact surface when steel spring plate is bent, prevent steel spring plate from fractureing；
3rd, steel spring plate beam includes multilayer, and length is consistent and the first most long spring steel flaggy takes the lead in shield, section of jurisdiction
Contact, the consistent steel plate layer of multiple length is oppositely arranged, it is ensured that mud, in identical contact area, is improved with steel spring plate
Armor plate strength and interdiction capability, the second spring steel plate layer that length is successively decreased are not contacted with shield, section of jurisdiction, but tight under pressing plate function
The first spring steel flaggy is pasted, resilient support adhesive force is given, stagger enhances the intensity of the first spring steel flaggy, each
Layer and preceding layer are dislocatedly distributed, are staggered, the seam dislocation closure between steel plate, enhance the sealing energy of steel spring plate beam
Power；The length of first spring steel flaggy is configured to interfere with shield, section of jurisdiction outer wall so that when spring steel flaggy is bent
Shield, the outer wall of section of jurisdiction can also be contacted and cling to, sealant is formed；
4th, base is fixed by welding on pre-buried steel loop, and through hole is provided with base, steel spring plate beam and pressing plate, is led to
Fastener is crossed to be fixedly connected with three；Dormant bolt is provided with first through hole, steel spring plate beam and pressing plate is sequentially passed through, then
Nut is tightened, and that realizes three is detachably fixed connection；
Five, the 3 the first spring steel flaggies cause the thickness of the steel spring plate contacted with shield, section of jurisdiction, intensity to exist just
Interdiction capability is optimal on the basis of bearing hydraulic pressure, and 5 second spring steel plate layers cause the steel spring plate not contacted with shield, section of jurisdiction
Just the bending of the first spring steel flaggy is oppressed on the first spring steel flaggy and do not hindered, powerful support force is formed；Material
It is the steel plate treated by special process for 65Mn, with good elasticity, crooking ability and resilience；Each spring
The thickness of steel plate is 1mm so that the intensity that each steel spring plate has had, and multi-layer spring steel plate are superimposed to form the first bullet
It can also be bent and resilience during spring steel plate layer；
6th, temporary sealing method of the invention, this before treating to hang out to shield dismounting after arrival received well
For a period of time, concrete pouring construction can not be carried out at portal, therefore needs portal temporary sealing, the temporary sealing of the present invention is used
Device, is installed on pre-buried steel loop, and backfill sand, preparation band water of pouring water are received, and shield passes through pre-buried steel loop, then installs
Last group of section of jurisdiction, is separated into two spaces by shield, section of jurisdiction outer wall successively, and shield afterbody is reached after pre-buried steel loop, shield
The slip casting of built-in slip casting pipe at main slip casting, portal is carried out in machine as auxiliary slip casting, realizes that portal blocks slip casting, prevents water and soil
Loss forms surface collapse, and the concrete structure permanent seal formation sealing basis of the portal after being, method of the invention exists
Simple to operate, good sealing effect in the case that band water is received, reduces human and material resources, it is only necessary to peace of the early stage to sealing device
Dress.
Further advantage, target and the feature of the present invention embodies part by following explanation, and part will also be by this
The research and practice of invention and be understood by the person skilled in the art.
Brief description of the drawings
Fig. 1 is the structural representation of temporary sealing devices of the present invention；
Fig. 2 is the scheme of installation of steel spring plate beam of the present invention；
Fig. 3 is the partial enlarged drawing of steel spring plate beam of the present invention；
Fig. 4 is the front view and side view of base of the present invention；
Fig. 5 is the front view and side view of pressing plate of the present invention.
Embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings, to make those skilled in the art with reference to specification text
Word can be implemented according to this.
As shown in Fig. 1~5, the present invention provides a kind of shield band water and receives portal temporary sealing devices, and it is arranged on reception
On the pre-buried steel loop 3 of the portal of well, the shield enters the reception for receiving the shield through the temporary sealing devices
Well, including：
Multiple bases 5, it is evenly distributed on the pre-buried steel loop 3 on the side circumference of the received well；
Steel spring plate beam 6, it includes one or more spring steel flaggies, for any one spring steel flaggy by multiple edges
The circumference of pre-buried steel loop 3 is constituted to the steel spring plate for the equal length being evenly distributed on the multiple base 5, and arbitrary neighborhood
Two steel spring plate abutting contacts so that the spring steel flaggy formation cyclic structure, wherein, for any one spring steel
Plate, its one end is fixed on base 5, and the other end is free end, and the length of the steel spring plate is less than the half of the pre-buried steel loop 3
Footpath；Multiple pressing plates 7, it is evenly distributed on the steel spring plate beam 6 and is oppositely arranged with the multiple base 5, the pressing plate 7
One end close to the free end of the steel spring plate is bent to the received well direction with certain radian.
In the above-mentioned technical solutions, temporary sealing devices are arranged on pre-buried steel loop 3, pass through the circumference in pre-buried steel loop 3
Mounting seat 5, steel spring plate beam 6 and pressing plate 7, make one end of steel spring plate beam 6 be fixed on pre-buried steel loop 3 successively, shield warp
Steel spring plate beam 6 is close to shield outer wall circumference when crossing portal, by the mud between the outer wall of shield and surrounding soil dodge gate steel loop
Slurry and extraneous obstruction, when shield is moved on, install last group of section of jurisdiction, steel spring plate beam 6 is close to section of jurisdiction outer wall at portal
Mud between circumference, section of jurisdiction and surrounding soil or portal steel loop is stopped with extraneous, the first injected hole to the space slip casting of portal side,
So that Water And Earth Pressures are balanced, the purpose of temporary sealing is realized.Base 5 is arranged on the circumference of pre-buried steel loop 3 so that each bullet
Spring steel plate can be arranged on base 5 to be fixed on pre-buried steel loop 3, and spring steel flaggy includes the spring of multiple abutting contacts
Connect between steel plate, steel spring plate but be not fixedly connected, easy for removal and installation, radius is less than the ring-type knot of pre-buried steel loop 3
Structure, is easy to form the sectional layer for intercepting mud, and pressing plate 7 is relative one by one with base 5 so that the one end for the steel spring plate being clipped in the middle
Tightly fix, form sealed section, the other end of pressing plate 7 is bent with certain radian, it is ensured that with pressure when steel spring plate is bent
The contact surface of plate 7, prevents steel spring plate from fractureing.
In another technical scheme, described shield band water receives portal temporary sealing devices, the steel spring plate beam 6
Including：Multiple spring steel flaggies, it includes being sequentially overlapped the first steel spring plate group 61 and of installation along the received well direction
Two steel spring plate groups 62, the first steel spring plate group 61 includes multiple the first spring steel flaggies being oppositely arranged, and composition is described
The length of the steel spring plate of multiple first spring steel flaggies is consistent, and the second spring steel plate group 62 includes multiple be staggered
Second spring steel plate layer, the length for constituting the steel spring plate of the second spring steel plate layer is successively decreased along the received well direction, and
Respectively less than constitute the length of the steel spring plate of the multiple first spring steel flaggy.Steel spring plate beam 6 includes multilayer, and length is consistent
And most long the first spring steel flaggy takes the lead in contacting with shield, section of jurisdiction, the consistent steel plate layer of multiple length is oppositely arranged, it is ensured that
Mud, in identical contact area, improves armor plate strength and interdiction capability, the second spring steel that length is successively decreased with steel spring plate
Flaggy is not contacted with shield, section of jurisdiction, but is close to the first spring steel flaggy under the effect of pressing plate 7, gives resilient support adhesive force, rank
Ladder type arranges the intensity for enhancing the first spring steel flaggy, and each layer and preceding layer are dislocatedly distributed, be staggered, between steel plate
Seam dislocation closure, enhances the sealability of steel spring plate beam 6.
In another technical scheme, described shield band water receives portal temporary sealing devices, constitutes first bullet
The length of the steel spring plate of spring steel plate layer is set to：When the shield passes through the pre-buried steel loop 3, the first spring steel flaggy
Interfered with the shield, when the shield installs section of jurisdiction, the first spring steel flaggy is interfered with the section of jurisdiction.The
The length of one spring steel flaggy is configured to interfere with shield, section of jurisdiction outer wall so that spring steel flaggy can also when bending
Shield, the outer wall of section of jurisdiction are enough contacted and cling to, annular seal layer is formed.
In another technical scheme, described shield band water is received on portal temporary sealing devices, the multiple base 5
One end provided with multiple first through hole, the steel spring plate beam 6 is provided with multiple second through holes, the multiple pressing plate 7 provided with many
Individual third through-hole, fastener passes through the first through hole, the second through hole and third through-hole by the base 5, the steel spring plate
One end of beam 6 is fixedly connected with the pressing plate 7.Base 5 is fixed by welding on pre-buried steel loop 3, base 5, steel spring plate beam 6
Through hole is provided with pressing plate 7, three is fixedly connected with by fastener.
In another technical scheme, described shield band water receives portal temporary sealing devices, and the first through hole is
Inside is equipped with the bellmouth of dormant bolt 4, and the dormant bolt 4 is through the first through hole, second through hole and described
It is threadedly coupled after third through-hole with pad nut 8, the base 5, one end of the steel spring plate beam 6 and the pressing plate 7 is consolidated
Fixed connection.Dormant bolt 4 is provided with first through hole, steel spring plate beam 6 and pressing plate 7 is sequentially passed through, then nut 8 is tightened, it is real
Existing three's is detachably fixed connection.
In another technical scheme, described shield band water is received on portal temporary sealing devices, the pre-buried steel loop 3
Provided with the first injected hole, it is connected with the built-in slip casting pipe 2 being embedded in inwall 1.
In another technical scheme, described shield band water receives portal temporary sealing devices, the steel spring plate beam 6
Including 3 the first spring steel flaggies and 5 second spring steel plate layers.3 the first spring steel flaggies cause with shield,
Interdiction capability is optimal on the basis of hydraulic pressure is born just for the thickness of the steel spring plate of section of jurisdiction contact, intensity, 5 second spring steel
Flaggy causes the steel spring plate not contacted with shield, section of jurisdiction to oppress just on the first spring steel flaggy and does not hinder the first spring
The bending of steel plate layer, forms powerful support force.
In another technical scheme, described shield band water receives portal temporary sealing devices, the steel spring plate beam 6
Material be 65Mn.Material is that 65Mn is the steel plate treated by special process, with good elasticity, crooking ability and is returned
Resilience energy power.
In another technical scheme, described shield band water receives portal temporary sealing devices, for any one institute
Steel spring plate is stated, its thickness is 1mm.The thickness of each steel spring plate is 1mm so that it is strong that each steel spring plate has had
Degree, and multi-layer spring steel plate is when being superimposed to form the first spring steel flaggy, moreover it is possible to bending and resilience.
A kind of described shield receives the encapsulating method of portal temporary sealing devices with water, comprises the following steps：
The pre-buried steel loop 3 is set the firstth, at the portal of the received well, and first injected hole is set and described
Grouting Pipe, welds the base 5 on the circumference of the pre-buried steel loop 3, the steel spring plate beam 6 and the pressing plate is installed successively
7, to compress the steel spring plate beam 6, cutting for the portal is carried out in the case of steel spring plate beam 6 described in without prejudice to；
Secondth, sand is backfilled in received well, and is poured water to specified liquid level；
3rd, stop cutterhead when the shield releases the portal to rotate, the shield contacts the steel spring plate beam 6
Afterwards, the steel spring plate beam 6 is close to the outer wall of the shield and the space beyond it is separated into two separate spaces, the shield
The grouting behind shaft or drift lining hole of structure is to space slip casting not with the received well insertion, and the shield tail brush to the shield departs from the spring steel
Plate beam 6；
4th, after the shield is released, the last a piece of of the shield installation is close to after the resilience of steel spring plate beam 6
Space beyond it is simultaneously separated into two separate spaces, the secondary grouting hole of the section of jurisdiction and first note by the outer wall of section of jurisdiction
Hole is starched to portal closure slip casting is not carried out simultaneously with the space of the received well insertion, temporary sealing system is formed.
The temporary sealing method of the invention of the present invention, before treating to hang out to shield dismounting after arrival received well
Concrete pouring construction can not be carried out at this period of time, portal, therefore needs portal temporary sealing, the interim close of the present invention is used
Seal apparatus, is installed on pre-buried steel loop 3, and backfill sand, preparation band water of pouring water are received, and shield passes through pre-buried steel loop 3, then
Last group of section of jurisdiction is installed, shield, section of jurisdiction outer wall are separated into two spaces successively, shield afterbody is reached after pre-buried steel loop 3,
The slip casting of built-in slip casting pipe 2 at main slip casting, portal is carried out in shield machine as auxiliary slip casting, realizes that portal blocks slip casting, prevents
Only soil erosion forms surface collapse, and the concrete structure permanent seal formation sealing basis of the portal after being is of the invention
Method simple to operate, good sealing effect in the case where band water is received, reduces human and material resources, it is only necessary to which early stage is filled to sealing
The installation put.
The technical solution adopted by the present invention is：On a kind of shield tunnel door seal device, including inwall 1, inwall 1
Provided with pre-buried steel loop 3, one of waterproof construction is installed on pre-buried steel loop 3, waterproof construction includes 5,8 layers of steel spring plate of base, pressure
Plate 7 and clamp nut 8.Injected hole is reserved with the pre-buried steel loop 3.
The waterproof construction base 5 is evenly arranged and welded with pre-buried steel loop 3, bottom along the pre-buried end face ring one of steel loop 3 circle
6 bellmouths are disposed with seat 5, each bellmouth is fixed with 1 dormant bolt 4.
Totally 8 layers of steel spring plate, 8 layers of 1.0mm thickness 65Mn steel spring plates superposition that interlocks is attached to the dormant bolt 4 of base 5
On, wherein interior three layers are fundamental length, outer five layers successively shorten, and give the design of Sealing Structure of resilient support adhesive force.
The each base 5 of each correspondence of pressing plate 7, is depressed on steel spring plate, and fastened pressing plate 7 with nut 8.Pressing plate 7 leans on footpath
There is certain radian to turn up to inside line.
It is a kind of to carry out tunnel reception portal encapsulating method using above-mentioned shield tunnel door sealing, comprise the following steps：
(1) installation of shield tunnel door seal device, is completed；
(2), backfill sand in received well, and pouring water to specified liquid level；
(3), shield machine is pushed out to shield tail brush and separated with waterproof construction steel spring plate；
(4) section of jurisdiction secondary grouting hole and the injected hole of pre-buried steel loop 3 note dual slurry closure portal, are utilized；
(5), portal sealing device of the invention acts on automatic rebounding by the elastic force of steel spring plate beam 6 itself and is pressed in pipe
On piece, to reach the purpose for blocking stratum dregs to be lost in.
The present invention includes inwall 1, and inwall 1 is provided with pre-buried steel loop 3 and built-in slip casting pipe 2, the pre-buried front end face of steel loop 3
With the sealing welding of waterproof construction base 5, base 5 is equidistant to be welded on the pre-buried circumference one of steel loop 3 circle, perforate on each base 5
And dormant bolt 4 is installed, steel spring plate beam 6 is staggeredly superimposed and is arranged on dormant bolt 4, and interior three layers are fundamental length, outer five
Layer length is successively decreased successively, and the correspondence base 5 of pressing plate 7 is arranged on holddown spring steel plate on dormant bolt 4, finally tightens fixing nut 8.
Realize that the implementation steps of tunnel shielding portal encapsulating method are as follows by above-mentioned shield tunnel door seal device：
(1) installation of shield inner tunnel portal sealing device, including the following steps are completed：
The construction of inwall 1 is completed first, and in portal position according to the requirement of shield launching size, the pre-buried steel loop of the domain is set
3, and reserved injected hole is set in inwall 1, security protection is carried out to reserved injected hole, prevents duct from blocking.
Sealed base 5 is positioned and sealing welding is on the pre-buried end face circumference of steel loop 3 of portal.
The steel spring plate first layer correspondence bolt of base 5 is installed, second layer steel spring plate is with respect to first layer spring steel
Plate is installed along the pre-buried ring orientation of steel loop 3 bolt that staggers, and similarly, third layer steel spring plate is with respect to second layer spring steel
The plate bolt that staggers is installed, and similarly, rear five layers of steel spring plate is staggered installation of successively, and interior three layers of steel spring plate is substantially long
Degree, length is most long, and rear five layers of steel spring plate length is successively decreased successively.
Per block pressur plate 7, every piece of position of base 5 of correspondence, is installed on dormant bolt 4, then installs pad nut 8, compresses bullet
Spring steel plate.
Carry out portal to cut, safeguard measure is taken to steel spring plate during cutting, it is clear to cutting thing after the completion of cutting
Reason.
Sand is backfilled in received well, and is poured water to specified liquid level.
(2), the propulsion of shield machine：Shield machine, which is released, stops cutterhead rotation after portal, prevent from destroying Packing spring steel plate, shield
After structure machine contact spring steel plate, it is infused in outside shield machine wall on injected hole under itself rebound effect, is adjacent to shield machine outer wall, reaches
To after preventing that the purpose of stratum sand running-down, shield machine from releasing, steel spring plate is adjacent to section of jurisdiction outer wall under itself rebound effect, together
The reserved injected hole opened up at Shi Liyong portals on section of jurisdiction secondary grouting hole and inwall 1 carries out slip casting closure, forms sealing system
System.
The effect of slip casting is to fill the space between Structural Test of Tunnel Segments and surrounding soil or portal steel loop, prevents water and soil
Loss forms surface collapse.Portal blocks slip casting and carried out after shield afterbody reaches pre-buried steel loop 3.Slip casting is main from shield
Carried out in structure machine, the slip casting of built-in slip casting pipe 2 is used as ancillary method at portal.
Although embodiment of the present invention is disclosed as above, it is not restricted in specification and embodiment listed
With it can be applied to various suitable the field of the invention completely, can be easily for those skilled in the art
Other modification is realized, therefore under the universal limited without departing substantially from claim and equivalency range, the present invention is not limited
In specific details and shown here as the legend with description.
Claims (9)
1. a kind of shield band water receives portal temporary sealing devices, it is arranged on the pre-buried steel loop of the portal of received well, described
Shield enters the received well for receiving the shield through the temporary sealing devices, it is characterised in that including：
Multiple bases, it is evenly distributed on the pre-buried steel loop on the side circumference of the received well；
Steel spring plate beam, it includes multiple spring steel flaggies, for any one spring steel flaggy by multiple along the pre-buried steel
Ring circumference is constituted to the steel spring plate for the equal length being evenly distributed on the multiple base, and two spring steel of arbitrary neighborhood
Plate abutting contact so that the spring steel flaggy formation cyclic structure, wherein, for any one steel spring plate, its one end is fixed
On base, the other end is free end, and the length of the steel spring plate is less than the radius of the pre-buried steel loop；
Multiple pressing plates, it is evenly distributed on the steel spring plate beam and is oppositely arranged with the multiple base, and the pressing plate is leaned on
One end of the free end of the nearly steel spring plate is bent to the received well direction with certain radian；
Wherein, multiple spring steel flaggies include being sequentially overlapped the first steel spring plate group and second of installation along the received well direction
Steel spring plate group, the first steel spring plate group includes multiple the first spring steel flaggies being oppositely arranged, and constitutes first bullet
The length of the steel spring plate of spring steel plate layer is consistent, and the second spring steel plate group includes multiple second spring steel plates being staggered
Layer, the length for constituting the steel spring plate of the second spring steel plate layer is successively decreased along the received well direction, and is respectively less than composition institute
State the length of the steel spring plate of the first spring steel flaggy.
2. shield band water as claimed in claim 1 receives portal temporary sealing devices, it is characterised in that composition first bullet
The length of the steel spring plate of spring steel plate layer is set to：When the shield passes through the pre-buried steel loop, the first spring steel flaggy
Interfered with the shield, when the shield installs section of jurisdiction, the first spring steel flaggy is interfered with the section of jurisdiction.
3. shield band water as claimed in claim 2 receives portal temporary sealing devices, it is characterised in that on the multiple base
One end provided with multiple first through hole, the steel spring plate beam is provided with multiple second through holes, the multiple pressing plate provided with multiple
Third through-hole, fastener is through the first through hole, the second through hole and third through-hole by the base, the steel spring plate beam
One end is fixedly connected with the pressing plate.
4. shield as claimed in claim 3 band water receives portal temporary sealing devices, it is characterised in that the first through hole is
Inside is equipped with the bellmouth of dormant bolt, and the dormant bolt is through the first through hole, second through hole and described the
It is connected after three through holes with pad nut thread, one end of the base, the steel spring plate beam is fixedly connected with the pressing plate.
5. shield band water as claimed in claim 4 receives portal temporary sealing devices, it is characterised in that on the pre-buried steel loop
Provided with the first injected hole, it is connected with the built-in slip casting pipe being embedded in inwall.
6. shield band water as claimed in claim 5 receives portal temporary sealing devices, it is characterised in that the steel spring plate beam
Including 3 the first spring steel flaggies and 5 second spring steel plate layers.
7. shield band water as claimed in claim 6 receives portal temporary sealing devices, it is characterised in that the steel spring plate beam
Material be 65Mn.
8. shield band water as claimed in claim 7 receives portal temporary sealing devices, it is characterised in that for any one institute
Steel spring plate is stated, its thickness is 1mm.
9. a kind of shield as any one of claim 5-8 receives the encapsulating method of portal temporary sealing devices with water,
It is characterised in that it includes following steps：
The pre-buried steel loop is set the firstth, at the portal of the received well, and first injected hole and the slip casting are set
Pipe, welds the base on the circumference of the pre-buried steel loop, the steel spring plate beam and the pressing plate is installed successively, to compress
The steel spring plate beam, carries out cutting for the portal in the case of steel spring plate beam described in without prejudice to；
Secondth, sand is backfilled in received well, and is poured water to specified liquid level；
3rd, stop cutterhead when the shield releases the portal to rotate, the shield is contacted after the steel spring plate beam, described
Steel spring plate tightens the outer wall for pasting the shield and the space beyond it is separated into after two separate spaces, the wall of the shield
Injected hole is to space slip casting not with the received well insertion, and the shield tail brush to the shield departs from the steel spring plate beam；
4th, after the shield is released, last endless tube piece that the shield is installed is close to after the steel spring plate beam resilience
Outer wall and the space beyond it is separated into two separate spaces, the secondary grouting hole of the section of jurisdiction and first injected hole
The space of received well insertion described in Xiang Buyu carries out portal closure slip casting simultaneously, forms temporary sealing system.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510418185.2A CN105065010B (en) | 2015-07-16 | 2015-07-16 | A kind of shield band water receives portal temporary sealing devices and encapsulating method |
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| CN201510418185.2A CN105065010B (en) | 2015-07-16 | 2015-07-16 | A kind of shield band water receives portal temporary sealing devices and encapsulating method |
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| CN105065010A CN105065010A (en) | 2015-11-18 |
| CN105065010B true CN105065010B (en) | 2017-10-31 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106837359B (en) * | 2017-02-09 | 2018-10-02 | 中铁十一局集团城市轨道工程有限公司 | A kind of arrival portal sealing device and seal construction method |
| CN106917631B (en) * | 2017-04-10 | 2023-06-30 | 中铁第六勘察设计院集团有限公司 | Sealing device for underwater supporting type tunnel connecting section |
| CN108915705B (en) * | 2018-08-09 | 2019-10-22 | 中铁一局集团有限公司 | A kind of baffle grouting construction method blocked for shield export & import leak |
| CN110186792B (en) * | 2019-06-20 | 2023-12-05 | 中国电建集团成都勘测设计研究院有限公司 | Rapid rock mass strength testing device for double-shield TBM tunnel face |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2645407B2 (en) * | 1988-06-22 | 1997-08-25 | 株式会社タフラップ | Seal structure at the start port and seal structure at the arrival port |
| CN102345465A (en) * | 2011-06-21 | 2012-02-08 | 上海隧道工程股份有限公司 | Hooping sealing device used in shield arrival |
| CN103266898A (en) * | 2013-04-26 | 2013-08-28 | 中交第二航务工程局有限公司 | Shield tunnel portal sealing device and shield tunnel portal sealing method |
| CN103266901B (en) * | 2013-05-10 | 2015-08-26 | 中铁隧道集团有限公司 | A kind of shield tunnel portal temporary leaking water structure and construction method thereof |
| CN203685196U (en) * | 2014-01-20 | 2014-07-02 | 山东易斯特机械设备有限公司 | Improved plate type shield tail sealing brush |
| CN203835402U (en) * | 2014-05-29 | 2014-09-17 | 中交隧道工程局有限公司 | Starting portal sealing structure of slurry shield tunnel |
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