CN108590695A - Service channel shield construction method and service channel - Google Patents
Service channel shield construction method and service channel Download PDFInfo
- Publication number
- CN108590695A CN108590695A CN201810537259.8A CN201810537259A CN108590695A CN 108590695 A CN108590695 A CN 108590695A CN 201810537259 A CN201810537259 A CN 201810537259A CN 108590695 A CN108590695 A CN 108590695A
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- Prior art keywords
- shield
- shield shell
- service channel
- section
- sealing
- Prior art date
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- Granted
Links
- 238000010276 construction Methods 0.000 title claims abstract description 60
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 44
- 239000010959 steel Substances 0.000 claims abstract description 44
- 238000007789 sealing Methods 0.000 claims description 71
- 238000000034 method Methods 0.000 claims description 34
- 230000008569 process Effects 0.000 claims description 28
- 238000009434 installation Methods 0.000 claims description 23
- 239000000945 filler Substances 0.000 claims description 11
- 239000003921 oil Substances 0.000 claims description 11
- 238000006243 chemical reaction Methods 0.000 claims description 10
- 238000006073 displacement reaction Methods 0.000 claims description 8
- 241001609030 Brosme brosme Species 0.000 claims description 6
- 238000012545 processing Methods 0.000 claims description 5
- 230000005641 tunneling Effects 0.000 claims description 5
- 239000010687 lubricating oil Substances 0.000 claims description 4
- 230000007246 mechanism Effects 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000003252 repetitive effect Effects 0.000 claims description 3
- 239000002689 soil Substances 0.000 abstract description 21
- 238000009412 basement excavation Methods 0.000 abstract description 9
- 238000007569 slipcasting Methods 0.000 abstract description 6
- 230000001360 synchronised effect Effects 0.000 abstract description 6
- 235000019994 cava Nutrition 0.000 abstract description 3
- 230000000717 retained effect Effects 0.000 abstract description 3
- 238000005192 partition Methods 0.000 description 13
- 230000008014 freezing Effects 0.000 description 12
- 238000007710 freezing Methods 0.000 description 12
- 238000010586 diagram Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000002955 isolation Methods 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000002436 steel type Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/14—Layout of tunnels or galleries; Constructional features of tunnels or galleries, not otherwise provided for, e.g. portals, day-light attenuation at tunnel openings
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/08—Lining with building materials with preformed concrete slabs
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/0607—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining the shield being provided with devices for lining the tunnel, e.g. shuttering
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Abstract
The invention discloses a kind of service channel shield construction method and service channels, it gradually carries out assembled lengthening to shield shell during shield-tunneling construction and ultimately remains in the soil body, form the extended type shield shell that receiving terminal is extended to from originating terminal, the corresponding soil body of whole service channel is set to obtain the support of extended type shield shell, the generation in shield tail gap is prevented, to which slip casting need not be synchronized during driving, the a large amount of personnel needed for synchronous grouting and equipment operation space are saved, difficulty of construction and construction cost can be greatly lowered；In addition, the extended type shield shell of steel is retained in the soil body as just lining, the structural strength of whole service channel is can further improve, excavation face is prevented and caves in, the problems such as ground settlement.
Description
Technical field
The present invention relates to service channel technical field, more particularly to a kind of service channel shield construction method and contact are logical
Road.
Background technology
Service channel is provided in two main tunnels（Such as subway tunnel, vcehicular tunnel, piping lane or buried draining tunnel
Road etc.）Between and connect the channel in two main tunnels, within general 50 meters of length, more situation is ten meters or so, rise connection,
The effects that draining, maintenance and fire rescue.By taking subway tunnel or vcehicular tunnel as an example, if a main tunnel is integrally asked
Topic, pedestrian can be transferred to an other main tunnel by service channel, to greatly increase the safety coefficient of pedestrian.Meanwhile
Conveniently when accident occurs in a main tunnel, rescue personnel can reach service channel from other one main tunnel, then
The place for needing to rescue is entered by service channel again（A main tunnel for generation accident）, reach the mesh of Quick rescue
's.The effect of the service channel of piping lane then passes through for pipeline, or as personnel's access path；And the connection of buried outlet tunnel
Network channel can be used as water tunnel.
Traditional Freezing Method for Cross-passage Construction is used to stratum consolidation, sealing, and the mode that artificial or Mining Method excavates carries out, and deposits
In settlement Control complexity, security risk is high, low construction efficiency, disadvantage of high cost.
For this purpose, there is shield construction in the prior art.Shield machine is promoted in ground in the construction process and assembled pre-
Concrete pipe sheet processed, ultimately forms channel design.Wherein, the propulsion of shield machine is pressurizeed jacking by jack, while in excavation face
Front carries out soil excavation by the cutting apparatus of shield machine, and mud is transported service channel by the excavation device of shield machine
Outside.Although the shield construction method of existing service channel solves the skill present in traditional hand excavation to a certain extent
Art problem still still has shortcoming, such as：1, during service channel shield-tunneling construction, completely big model need to be taken service channel
Freezing process frozen ground is enclosed, during preventing shield-tunneling construction, underground water enters service channel, and is advanced into and will join in shield machine
When network channel and the section of jurisdiction cutting of the receiving terminal in main tunnel are hole-throughd, carries soil and pour in main tunnel, to avoid subsequently needing to spend
The expense plenty of time clears up main tunnel.And the mode of completely a wide range of freezing process frozen ground is taken, it takes time and effort, construction week
Phase is long and construction cost is high.2, main tunnel internal space is smaller, and after service channel shield-tunneling construction, entire shield machine is dismantled
The operation for going out main tunnel is more difficult.
To solve the above problems, Chinese patent publication No. is that " application for a patent for invention of CN107605507A " discloses one kind
Service channel shield-tunneling construction receives structure and construction method, the position that the receiving terminal of service channel is corresponded in main tunnel internal are set
It is equipped with edge and extends to and offset with the inner wall sealing of the main tunnel duct piece at receiving terminal and wait hole-througing by the main tunnel duct piece
The sealing partition board that region surrounds, makes sealing partition board be surrounded with main tunnel duct piece and is isolated with what its complementary space of main tunnel internal completely cut off
Storehouse.During Freezing Method for Cross-passage Construction, shield machine is promoted in the usual way from originating terminal toward receiving terminal in ground and assembly is got in touch with
Channel section of jurisdiction, when shield machine by the main tunnel duct piece at receiving terminal when hole-througing region and hole-througing, due to sealing the sealing of partition board
Barrier effect, underground water can not carry the received end of soil and enter main tunnel, to avoid subsequently taking a significant amount of time to main tunnel
Road is cleared up.Hereafter, partial freezing is carried out to the stratum in receiving terminal region, meanwhile, retain the shell of shield machine（Shield shell）Make
In the case of just serving as a contrast, remaining component of shield machine, sealing partition board, supporting steel frame and partition board supporting are removed；Then to shell
Watertight processing is carried out with the joint of main tunnel duct piece, and loopful secondary grouting is carried out in service channel section of jurisdiction, forms seal ring
Hoop；Then two linings that construction is connected with service channel shield duct piece inside of the housing, collectively constitute service channel receiving terminal forever
Long supporting construction；The partial freezing on the stratum to receiving terminal region is finally terminated, and completes the shield-tunneling construction of service channel.Entirely
The shield-tunneling construction process of service channel only needs to carry out partial freezing to the stratum in receiving terminal region, and need not be to entirely getting in touch with
Completely a wide range of freezing process frozen ground is taken in channel, thus can increase substantially construction efficiency, reduce difficulty of construction and apply
Work cost.But still have shortcoming, the reason is that, during the shield-tunneling construction of service channel, as shield machine is continuous
Ground is promoted in the soil body and segment assembly, and the soil body can constantly form shield tail gap because section of jurisdiction outer diameter is less than shield machine shield shell outer diameter
（It should be noted that the length of shield shell is less than the length of service channel, it is typically only the part of service channel length, shield
After the continuous push of structure machine, cannot get the soil body of shield shell support can form shield tail gap with section of jurisdiction ring）.This requires pushed away in shield machine
Slip casting is synchronized during（It should be noted that existing shield-tunneling construction all needs to synchronize slip casting）, in time will
The gap of formation is filled, and is caused brokenly to the earth's surface building of surrounding to prevent surrounding formation from largely Collapse Deformation occurs
It is bad.And synchronous grouting needs a large amount of personnel and equipment operation space, difficulty of construction is big and construction cost is high；In addition, slip casting
When not in place, it is also possible to cause excavation face to be caved in, the problems such as ground settlement.
Invention content
The main object of the present invention is a kind of service channel shield construction method of proposition and service channel, it is intended to reduce construction
The problems such as difficulty and construction cost, and prevent excavation face and cave in, ground settlement.
To achieve the above object, the present invention proposes a kind of service channel shield construction method, includes the following steps：
S1, installation originates structure and shield machine at the originating terminal that a main tunnel corresponds to service channel to be onstructed, at another
Main tunnel corresponds to installation sealing at the receiving terminal of service channel to be onstructed and receives structure；
S2, making shield machine, simultaneously assembled service channel section of jurisdiction forms at least one section contact from originating terminal toward receiving terminal driving predetermined displacement
Tube channel loop；
S3, make shield machine pause driving, and extend shield shell in one section of the rear end of the shield shell of shield machine assembly, to add to shield shell
It is long；
S4, make shield machine continue to tunnel predetermined displacement toward reception extreme direction and continue assembled service channel section of jurisdiction；
S5, by above-mentioned steps S3 and step S4 repetitive operations to the tunneling construction for completing service channel, and formed respectively from originating
End extends to the extended type shield shell and service channel section of jurisdiction ring of receiving terminal；
S6, in the case where retaining extended type shield shell as just lining, by originate structure, sealing receive structure and shield machine its
Remaining component is removed；
S7, watertight processing is carried out to the both ends of extended type shield shell and the joint of two main tunnel duct pieces, and completes service channel
Shield-tunneling construction.
The present invention also proposes a kind of service channel, including：
Extended type shield shell, the extended type shield shell extend to receiving terminal from the originating terminal of service channel, including a section shield shell and more
Section extends shield shell, and a section shield shell and more piece extend shield shell and splice successively, the both ends of extended type shield shell and two main tunnel duct pieces
Joint is equipped with sealing structure；And
Service channel section of jurisdiction ring, service channel section of jurisdiction ring are located on the inside of extended type shield shell and prolong from the originating terminal of service channel
Receiving terminal is extended to, is formed by prefabricated service channel pipe sheet assembling.
During the present invention gradually carries out assembled lengthening and ultimately remains in the soil body during shield-tunneling construction to shield shell, formed from
Originating terminal extends to the extended type shield shell of receiving terminal, and the corresponding soil body of whole service channel is made to obtain the branch of extended type shield shell
Support, has prevented the generation in shield tail gap, to synchronize slip casting during driving, saves needed for synchronous grouting
A large amount of personnel and equipment operation space, difficulty of construction and construction cost can be greatly lowered；In addition, by the lengthening of steel
Type shield shell is retained in the soil body as just lining, be can further improve the structural strength of whole service channel, is prevented excavation face
It caves in, the problems such as ground settlement.
Description of the drawings
Fig. 1 is not to be mounted with to originate structure and shield machine and be assemblied at least one section in main tunnel to bear section of jurisdiction ring, but not
Hole-through schematic diagram when a main tunnel duct piece；
Fig. 2 is the enlarged detail of the part A of Fig. 1；
Fig. 3 is that shield machine hole-throughs the section of jurisdiction in one main tunnel, and promotes the schematic diagram after certain displacement；
Fig. 4 is schematic diagram when shield machine is advanced into the section of jurisdiction that will hole-through another main tunnel；
Fig. 5 is schematic diagram when shield machine hole-throughs the section of jurisdiction in another main tunnel；
Fig. 6 is the schematic diagram that partial freezing is carried out to the soil body in receiving terminal region；
Fig. 7 be will originate structure, sealing receives remaining component of structure and shield machine and removes, and to the both ends of extended type shield shell
Watertight is carried out with the joint of two main tunnel duct pieces treated schematic diagram；
Fig. 8 is to extend the splicing schematic diagram extended between shield shell between shield shell and shield shell or adjacent.
Specific implementation mode
Below in conjunction with attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that institute
The embodiment of description is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the implementation in the present invention
Example, the every other embodiment that those of ordinary skill in the art are obtained without creative efforts belong to
The scope of protection of the invention.
If it is to be appreciated that relating to directionality instruction in the embodiment of the present invention（Such as up, down, left, right, before and after, top,
Bottom, inside and outside, vertical, transverse direction, longitudinal direction, counterclockwise, clockwise, circumferentially, radially, axially ...）, then directionality instruction only use
In explanation in a certain particular pose（As shown in the picture）Under relative position relation, motion conditions etc. between each component, if should
When particular pose changes, then directionality instruction also correspondingly changes correspondingly.
If, should " first " or " the in addition, relate to the description of " first " or " second " etc. in the embodiment of the present invention
Two " etc. description is used for description purposes only, and is not understood to indicate or imply its relative importance or is implicitly indicated meaning
The quantity of the technical characteristic shown." first " is defined as a result, the feature of " second " can explicitly or implicitly include at least one
A this feature.In addition, the technical solution between each embodiment can be combined with each other, but must be with ordinary skill
Personnel can be implemented as basis, will be understood that this technical side when the combination of technical solution appearance is conflicting or cannot achieve
The combination of case is not present, also not the present invention claims protection domain within.
The present invention proposes a kind of service channel shield construction method.
In the embodiment of the present invention, as shown in Fig. 1 to Fig. 8 the service channel shield construction method, includes the following steps：
S1, installation originates structure 200 and shield machine 300 at the originating terminal that a main tunnel 100 corresponds to service channel to be onstructed,
Installation sealing receives structure 500 at the receiving terminal that another main tunnel 400 corresponds to service channel to be onstructed.
Specifically, in step 1, described to be installed at the originating terminal that a main tunnel 100 corresponds to service channel to be onstructed
The side installation that structure 200 is included in a main tunnel 100 towards originating terminal is originated to originate reaction frame 203, originating reaction frame
203 install circumferentially distributed counter-force jack 204 towards the side of originating terminal, and movement is installed in the bottom in a main tunnel 100
Formula pre-loaded support struts mechanism, and the mistake that sealing is oriented to steel pipe socket 205 is installed in the position of a correspondence originating terminal of main tunnel 100
Journey.It should be noted that originating reaction frame 203（Generally grid steel frame）, counter-force jack 204 and mobile prestressing force branch
Support mechanism（Generally comprise support pulley 202 and supporting rack 201）Concrete structure and installation method the prior art, example can be used
As corresponding construction and mounting means disclosed in the Chinese invention patent application that application publication number is CN106948833 can be used,
Here no longer its lamps structure and work mounting means are repeated.
Specifically, in step 1, the process that the installation sealing is oriented to steel pipe socket 205 is included in main tunnel 100
First steel plate 207 of the pre-buried annular in periphery in the region to be hole-throughd of section of jurisdiction, is arranged the first sealing ring 208 on the first steel plate 207,
Sealing guiding steel pipe socket 205 is connect with the first steel plate 207 and is offseted with the first sealing ring 208, and steel pipe is oriented in sealing
The circumferentially disposed multiple lower ends of outer wall of set 205 are oriented to steel pipe socket 205 with sealing and offset, the section of jurisdiction of upper end and a main tunnel 100
The process of the support jack 206 to offset.Wherein, the first sealing ring 208 can make sealing be oriented to steel pipe socket 205 and a main tunnel
100 junction forms watertight, and support jack 206 can make sealing be oriented to the holding stabilization of steel pipe socket 205, and sealing is oriented to steel pipe socket
The outer diameter of 205 internal diameter and the shield shell 11 of shield machine 300 is mutually fitted, and is oriented to the driving to shield machine 300 and prevents shield
From originating terminal into receiving terminal tunneling process, underground water carries the sealed guiding steel pipe socket 205 of soil and enters a main tunnel machine 300
Road 100.Further, the process that installation sealing is oriented to steel pipe socket 205 further includes that the periphery wall week of steel pipe socket 205 is oriented in sealing
To opening up multiple the first oil filler points 2051 through inner wall surface thereof, and the internal face for being oriented in sealing steel pipe socket 205 is located at first
The position at 2051 rear of oil filler point is installed by sealing brush 4（Or brush seal）, then during shield machine 300 tunnels, warp
Lubricating oil is injected into extremely sealings to be oriented to the process between the inner wall and the outer wall of shield shell 11 of steel pipe socket 205 for first oil filler point 2051,
Rise sealing and lubricating action, and sealing brush 4 can then prevent shield machine 300 promote when, lubricating oil leaks outward.First oil filler point
2051 and circumferential are uniformly distributed by preferably six.
The installation of shield machine 300 includes mainly knife disc tool system, Tu Cang, bearing, motor, pipe sheet assembling system and shield
How the installation of the components such as shell 11, specifically install, and is the prior art, is not discussed here.
Specifically, installation sealing receives structure at the receiving terminal that another main tunnel 400 corresponds to service channel to be onstructed
There are many 500 modes, and in one embodiment, it is " the Chinese invention patent Shen of CN107605507A " that application publication number, which can be used,
Please in reception structure embodiment.E.g., including edge is set inside another main tunnel 400 and is extended to and another
The section of jurisdiction in main tunnel 400 seals the sealing partition board for offseting and surrounding the regional seal to be hole-throughd of 400 section of jurisdiction of another main tunnel
501, the isolation cabin 502 of sealing is surrounded by the region to be hole-throughd of sealing partition board 501 and 400 section of jurisdiction of another main tunnel, and
Mud is filled in isolation cabin 502, while in the fixed branch in the tube wall in another main tunnel 400 side opposite with region to be hole-throughd
Steelframe 503 is supportted, and passes through partition board supporting 504（Generally jack, cylinder or hydraulic cylinder etc.）It is butted on supporting steel frame 503 and close
Insulate the process between plate 501.After shield machine 300 hole-throughs the section of jurisdiction in another main tunnel 400, due to sealing partition board 501
Sealing barrier effect, underground water can not carry the received end of soil enter another main tunnel 400, to avoid subsequently spending
Plenty of time clears up another main tunnel 400.It is to be appreciated that mud mainly plays pressurize and is prevented in isolation cabin 502
Shield acts on.Specifically, sealing partition board 501 includes that edge extends to the metallic plate to offset with the sealing of 400 section of jurisdiction of another main tunnel
Part 5011, and it is fixedly arranged on the partition board 5012 of metal sheet 5011 and region opposite side to be hole-throughd, wood can be used in partition board 5012
Or plastics are made, when shield machine 300 is advanced over more, partition board 5012 can be cut by the cutterhead part of shield machine 300, without
Cutterhead is caused to damage.Certainly, installation sealing receives knot at the receiving terminal that another main tunnel 400 corresponds to service channel to be onstructed
The mode of structure 500 can also use application publication number for the Chinese invention patent application of CN106948833 in corresponding implementation
Mode, or use existing other embodiment.
S2, shield machine 300 is made simultaneously to be formed at least assembled service channel section of jurisdiction from originating terminal toward receiving terminal driving predetermined displacement
One section service channel section of jurisdiction ring.
Specifically, further include in the assembled more piece in 11 inside of shield shell before shield machine 300 is not tunneled from originating terminal to receiving terminal
Negative section of jurisdiction ring 3, and counter-force jack 204 and the rear end of negative section of jurisdiction ring 3 are offseted, the front end of negative section of jurisdiction ring 3 is butted on for rear end
Shield machine jack 301 provides reaction of bearing, so that the process that shield machine 300 can tunnel forward.It should be noted that negative section of jurisdiction
Ring 3 refers to that the section of jurisdiction ring being located at outside service channel offsets during shield-tunneling construction with counter-force jack 204, is shield machine
300 driving provides reaction of bearing.After waiting for shield-tunneling construction, then need to remove negative section of jurisdiction ring 3.
It is to be appreciated that the predetermined displacement should generally be less than the length of shield shell 11,11 part of shield shell is made to be located at contact
Outside channel, it is convenient for the assembly of following elongation shield shell 12 in this way.It should be noted that shield machine 300 during driving how
Assembled service channel section of jurisdiction is the prior art, is not discussed here.
S3, make the pause driving of shield machine 300, and extend shield shell 12 in one section of the rear end of the shield shell 11 of shield machine 300 assembly,
To be lengthened to shield shell 11.
Specifically, it includes that will extend shield to extend the process of shield shell 12 in one section of the rear end of the shield shell 11 of shield machine 300 assembly
Shell 12 is hung to the shield shell 11 in front of it relatively, and is applied thrust and pushed extension shield shell 12 to set on its front bulkhead forward
Bolt 5 heads into connecing in hole positioned at 11 aft bulkhead of shield shell, and extension shield shell 12 is made to be docked with shield shell 11, and to extending shield shell 12 and shield
The process that the junction of shell 11 is welded.Further, before assembly, further include extend shield shell 12 front bulkhead and/or
The process of the aft bulkhead setting elastic sealing gasket 7 of shield shell 11, to play antiseepage.
More specifically, the front bulkhead for extending shield shell 12 opens up screw hole 112 and the bolt 5 that is screwed on, shield shell 11 and screw hole 112
Opposite position connects hole described in offering, and described to connect fixed flexible latch fitting 6 in hole, latch fitting 6 offers diameter and is less than bolt 5
51 outer diameter of cap portion card hole, after the cap portion 51 of bolt 5 squeezes through card hole, hook the front bulkhead for being stuck in latch fitting 6, shield shell 12 will be extended
It is connected with shield shell 11.Further, the peripheral wall that the bar portion of bolt 5 is located at the part outside screw hole 112 has outwardly directed tusk
52, the hole wall of card hole forms pawl 61, and after the cap portion 51 of bolt 5 squeezes through card hole, tusk 52 is caught in the pawl 61.
Further include removing it is to be appreciated that before one section of rear end assembly of the shield shell 11 of shield machine 300 extends shield shell 12
At least one saves the negative section of jurisdiction ring 3 close to counter-force jack 204, to vacate the space assembled for extending shield shell 12, shield shell to be extended
After 12 assembly, the piston rod of counter-force jack 204 can be made to extend out to and offseted with the negative section of jurisdiction ring 3 that do not remove, shield is continued as
The driving forward of machine 300 provides reaction of bearing.The quantity of counter-force jack 204 according to a section bear section of jurisdiction ring 3 section of jurisdiction quantity and
Setting, such as there are six counter-force jack 204, and each counter-force jack 204 corresponds to the section of jurisdiction of one piece of negative section of jurisdiction ring 3.
S4, make shield machine 300 continue to tunnel predetermined displacement toward reception extreme direction and continue assembled service channel section of jurisdiction.
S5, by above-mentioned steps S3 and step S4 repetitive operations to the tunneling construction for completing service channel, and formed respectively from
Originating terminal extends to the extended type shield shell 1 and service channel section of jurisdiction ring 2 of receiving terminal；
Specifically, the service channel section of jurisdiction of service channel section of jurisdiction ring 2 uses concrete pipe sheet substantially, but is connect to improve service channel
Structural strength at receiving end, the service channel section of jurisdiction of final section service channel section of jurisdiction ring 21（Service channel i.e. at receiving terminal
Section of jurisdiction ring）Using steel tunnel segment, and it can weld and be connected with shield shell 11.
Extend shield shell 12 as need to finally splice how many sections, depending on depending on service channel and extending the length of shield shell 12.It completes
After tunneling construction, if service channel is excessively stretched out at the both ends of extended type shield shell 1, need to cut off the part excessively stretched out.It is adjacent
The connecting method extended between shield shell 12 it is consistent with above-mentioned extension shield shell 12 and the connecting method of shield shell 11, here no longer into
Row repeats.
S6, retain extended type shield shell 1 as just lining in the case of, will originate structure 200, sealing receive structure 500 with
And remaining component of shield machine 300 is removed, and is removed parallel.
S7, watertight processing is carried out to the joint of the section of jurisdiction at the both ends and two main tunnels 100,400 of extended type shield shell 1
（Sealing structure is set）, and complete the shield-tunneling construction of service channel.
Further, service channel shield construction method of the present invention further includes that will originate structure 200, sealing reception knot
Before remaining component of structure 500 and shield machine 300 is removed, partial freezing is carried out to the soil body 600 in receiving terminal region, and right
After the joint of the both ends of extended type shield shell 1 and the section of jurisdiction in two main tunnels 100,400 carries out watertight processing, terminate to receiving terminal
The process of the soil body partial freezing in region, partial freezing can carry out local stiffening to the soil body.
Further, further include opening up the second oil filler point 111 in shield shell 11 and extension shield shell 12 and service channel section of jurisdiction
With third oil filler point（It is not shown）, and toward shield shell 11 and extend shield shell 12 and contact through the second oil filler point 111 and third oil filler point
The process that lubricating oil is injected between the section of jurisdiction of channel reduces frictional resistance when shield machine 300 tunnels to play lubricating action.
It should be noted that reduce the cutting resistance of shield machine 300, the section of jurisdiction in two main tunnels 100,400 is to waiting a little while,please
It hole-throughs region and uses the compound section of jurisdiction of machinable, the concrete structure of the compound section of jurisdiction of machinable is the prior art, is no longer gone to live in the household of one's in-laws on getting married here
It states.
Further, installation sealing receives knot at the receiving terminal that another main tunnel 400 corresponds to service channel to be onstructed
Further include the second steel plate in the pre-buried annular in periphery in the region to be hole-throughd of the section of jurisdiction in another main tunnel 400 before structure 500
505, the process for the second sealing ring 506 that the outer diameter of fixed internal diameter and shield shell 11 is mutually fitted on the second steel plate 505, so that shield machine
300 by the section of jurisdiction in another main tunnel 400 when hole-througing region and hole-througing, the sealing of the second sealing ring 506 and shield shell 11 offsets,
Form watertight.
During the present invention gradually carries out assembled lengthening and ultimately remain in the soil body during shield-tunneling construction to shield shell 11, formed
The extended type shield shell 1 that receiving terminal is extended to from originating terminal, makes the corresponding soil body of whole service channel obtain extended type shield shell 1
Support, has prevented the generation in shield tail gap, to synchronize slip casting during driving, saves synchronous grouting institute
The a large amount of personnel needed and equipment operation space, can be greatly lowered difficulty of construction and construction cost；In addition, adding steel
Elongated shield shell 1 is retained in the soil body as just lining, be can further improve the structural strength of whole service channel, is prevented excavation
The problems such as face caves in, ground settlement.
The present invention also proposes a kind of service channel,
In embodiments of the present invention, as shown in Fig. 1 to Fig. 8 the service channel includes extended type shield shell 1 and and service channel section of jurisdiction
Ring 2.
Extended type shield shell 1 extends to receiving terminal from the originating terminal of service channel, including a section shield shell 11 and more piece extend shield
Shell 12, a section shield shell 11 and more piece extend shield shell 12 and splice successively, and the both ends of extended type shield shell 1 connect with two main tunnel duct pieces
Sealing structure is equipped at conjunction；Service channel section of jurisdiction ring 2 is located at 1 inside of extended type shield shell and prolongs from the originating terminal of service channel
Receiving terminal is extended to, is formed by prefabricated service channel pipe sheet assembling.
In embodiments of the present invention, extend between shield shell 12 and shield shell 11 and welded between adjacent extension shield shell 12 solid
It is fixed.For ease of welding and improving bonding strength, the front bulkhead for extending shield shell 12 opens up screw hole 112 and is screwed with bolt 5, extends shield
The aft bulkhead of shell 12 and shield shell 11 offer it is corresponding with bolt 5 connect hole, connect fixed flexible latch fitting 6, latch fitting 6 in hole and open up
There is diameter to be less than the card hole of 51 outer diameter of cap portion of bolt 5, after the cap portion 51 of bolt 5 squeezes through card hole, hooks the front end for being stuck in latch fitting 6
Wall will extend and dock fastening between shield shell 12 and shield shell 11 and adjacent extension shield shell 12, be convenient for subsequent welding.Specifically
Ground, the peripheral wall that the bar portion of bolt 5 is located at the part outside screw hole 112 have outwardly directed tusk 52, and the hole wall for connecing hole forms
Pawl 61, after the cap portion 51 of bolt 5 squeezes through card hole, tusk 52 is caught in the pawl 61, to further increase bonding strength.
Further, elastic sealing gasket 7 is arranged in the aft bulkhead of the front bulkhead and/or shield shell 11 that extend shield shell 12, anti-to rise
The effect of oozing.
Further, the position for connecing 6 front bulkhead of latch fitting that hole is located at elasticity is additionally provided with the rubber ring for stretching out and connecing hole, and splicing is prolonged
After long shield shell 12, rubber ring is butted on by elasticity between corresponding extension shield shell 12 and shield shell 11 and adjacent extension shield shell 12,
With further antiseepage.
Service channel section of jurisdiction uses concrete pipe sheet, but the structural strength to improve at service channel receiving terminal substantially, most
The section of jurisdiction of later section service channel section of jurisdiction ring 21（Service channel section of jurisdiction ring i.e. at receiving terminal）Using steel tunnel segment.
Second steel plate 505 of the pre-buried annular in periphery in the region to be hole-throughd of the section of jurisdiction in another main tunnel 400, the second steel plate
The outer diameter of fixed internal diameter and shield shell 11 mutually suitable the second sealing ring 506 on 505, shield machine 300 is by the pipe in another main tunnel 400
Piece when hole-througing region and hole-througing, the sealing of the second sealing ring 506 and shield shell 11 offsets.
The foregoing is merely the preferred embodiment of the present invention, are not intended to limit the scope of the invention, every at this
Under the inventive concept of invention, using equivalent structure transformation made by description of the invention and accompanying drawing content, or directly/use indirectly
In the scope of patent protection that other related technical areas are included in the present invention.
Claims (10)
1. service channel shield construction method, which is characterized in that include the following steps：
S1, installation originates structure and shield machine at the originating terminal that a main tunnel corresponds to service channel to be onstructed, at another
Main tunnel corresponds to installation sealing at the receiving terminal of service channel to be onstructed and receives structure；
S2, making shield machine, simultaneously assembled service channel section of jurisdiction forms at least one section contact from originating terminal toward receiving terminal driving predetermined displacement
Tube channel loop；
S3, make shield machine pause driving, and extend shield shell in one section of the rear end of the shield shell of shield machine assembly, to add to shield shell
It is long；
S4, make shield machine continue to tunnel predetermined displacement toward reception extreme direction and continue assembled service channel section of jurisdiction；
S5, by above-mentioned steps S3 and step S4 repetitive operations to the tunneling construction for completing service channel, and formed respectively from originating
End extends to the extended type shield shell and service channel section of jurisdiction ring of receiving terminal；
S6, in the case where retaining extended type shield shell as just lining, by originate structure, sealing receive structure and shield machine its
Remaining component is removed；
S7, watertight processing is carried out to the both ends of extended type shield shell and the joint of two main tunnel duct pieces, and completes service channel
Shield-tunneling construction.
2. service channel shield construction method as described in claim 1, it is characterised in that：In step 1, described in a master
Tunnel, which corresponds to installation at the originating terminal of service channel to be onstructed and originates structure, is included in a main tunnel towards the side of originating terminal
Installation originates reaction frame, installs circumferentially distributed counter-force jack in the side for originating reaction frame towards originating terminal, in a master
The mobile pre-loaded support struts mechanism of bottom installation in tunnel, and corresponds in a main tunnel position installation of originating terminal and seal and lead
To the process of steel pipe socket；The process that the installation sealing is oriented to steel pipe socket is included in the region to be hole-throughd of the section of jurisdiction in a main tunnel
The pre-buried annular in periphery the first steel plate, the first sealing ring is set on the first steel plate, will sealing guiding steel pipe socket and the first steel
Plate is connected and is offseted with the first sealing ring, and is oriented to the circumferentially disposed multiple lower ends of outer wall of steel pipe socket in sealing and is sealed and be oriented to
Steel pipe socket offsets, the process for the support jack that the section of jurisdiction in upper end and a main tunnel offsets.
3. service channel shield construction method as claimed in claim 2, it is characterised in that：Installation sealing is oriented to the mistake of steel pipe socket
Journey further includes circumferentially opening up multiple the first oil filler points through inner wall surface thereof in the periphery wall for sealing guiding steel pipe socket, and sealing
The internal face for being oriented to steel pipe socket is located at the position installation sealing brush at the first oil filler point rear, then in the process of shield machine driving
In, through the first oil filler point, lubricating oil is injected into the processes being oriented to sealing between the inner wall and the outer wall of shield shell of steel pipe socket.
4. service channel shield construction method as described in claim 1, it is characterised in that：Shield machine is not from originating terminal to reception
Before the driving of end, further include on the inside of shield shell assembled more piece bear section of jurisdiction ring, and by the rear end phase of counter-force jack and negative section of jurisdiction ring
It supports, the shield machine jack that the front end of negative section of jurisdiction ring is butted on for rear end provides reaction of bearing, so that shield function was tunneled forward
Process.
5. service channel shield construction method as described in claim 1, it is characterised in that：In the rear end matching of the shield shell of shield machine
It includes the shield shell phase pair that will extends shield shell and be hung to and be located in front of it to fill a section to extend the process of shield shell, and applies thrust to being pushed forward
Dynamic shield shell to the bolt for being set to its front bulkhead that extends heads into connecing in hole positioned at shield shell aft bulkhead, makes extension shield shell and shield shell pair
It connects, and to process that the junction for extending shield shell and shield shell is welded.
6. service channel shield construction method as claimed in claim 4, it is characterised in that：In the rear end matching of the shield shell of shield machine
It fills a section to extend before shield shell, further includes the negative section of jurisdiction ring for removing at least one section close to counter-force jack, to vacate for extending shield
The space of shell assembly, after extending shield shell assembly, the negative section of jurisdiction ring that just makes the piston rod of counter-force jack extend out to and not remove
It offsets, the driving forward for continuing as shield machine provides the process of reaction of bearing.
7. the service channel shield construction method as described in any one of claim 1 to 6, it is characterised in that：At another
Main tunnel corresponds at the receiving terminal of service channel to be onstructed before installation sealing reception structure, further includes in another main tunnel
Second steel plate of the pre-buried annular in periphery in the region to be hole-throughd of section of jurisdiction, the outer diameter of fixed internal diameter and shield shell is mutually fitted on the second steel plate
The second sealing ring process.
8. service channel, which is characterized in that including：
Extended type shield shell, the extended type shield shell extend to receiving terminal from the originating terminal of service channel, including a section shield shell and more
Section extends shield shell, and a section shield shell and more piece extend shield shell and splice successively, the both ends of extended type shield shell and two main tunnel duct pieces
Joint is equipped with sealing structure；And
Service channel section of jurisdiction ring, service channel section of jurisdiction ring are located on the inside of extended type shield shell and prolong from the originating terminal of service channel
Receiving terminal is extended to, is formed by prefabricated service channel pipe sheet assembling.
9. service channel as claimed in claim 8, it is characterised in that：Extend between shield shell and shield shell and adjacent extension shield
It is welded and fixed between shell, the front bulkhead for extending shield shell opens up screw hole and is screwed with bolt, and the aft bulkhead for extending shield shell and shield shell is opened
Hole is connect equipped with corresponding with bolt, connects fixed flexible latch fitting in hole, latch fitting offers the cap portion outer diameter that diameter is less than bolt
Card hole, after the cap portion of bolt squeezes through card hole, the front bulkhead for being stuck in latch fitting is hooked, after extending front bulkhead and/or the shield shell of shield shell
Elastic sealing gasket is arranged in end wall, and the service channel section of jurisdiction of final section service channel section of jurisdiction ring uses steel tunnel segment.
10. service channel as claimed in claim 9, it is characterised in that：The bar portion of bolt is located at the peripheral wall of the part outside screw hole
Have outwardly directed tusk, the hole wall for connecing hole forms pawl, after the cap portion of bolt squeezes through card hole, tusk be caught in it is described fall
In tooth, the second steel plate of the pre-buried annular in periphery in the region to be hole-throughd of the section of jurisdiction in another main tunnel is fixed interior on the second steel plate
The outer diameter of diameter and shield shell mutually suitable the second sealing ring, shield machine by the section of jurisdiction in another main tunnel when hole-througing region and hole-througing,
The sealing of second sealing ring and shield shell offsets.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810537259.8A CN108590695B (en) | 2018-05-30 | 2018-05-30 | Communication channel shield construction method and communication channel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810537259.8A CN108590695B (en) | 2018-05-30 | 2018-05-30 | Communication channel shield construction method and communication channel |
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| CN108590695B CN108590695B (en) | 2023-05-23 |
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Inventor after: Huang Linchong Inventor after: Liang Yu Inventor before: Liang Yu Inventor before: Huang Linchong |