CN109026030A - Tunnel circumferential direction digs method - Google Patents
Tunnel circumferential direction digs method Download PDFInfo
- Publication number
- CN109026030A CN109026030A CN201811052171.3A CN201811052171A CN109026030A CN 109026030 A CN109026030 A CN 109026030A CN 201811052171 A CN201811052171 A CN 201811052171A CN 109026030 A CN109026030 A CN 109026030A
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- Prior art keywords
- circumferential direction
- jurisdiction
- tunnel
- digs
- section
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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
- E21D9/01—Methods or apparatus for enlarging or restoring the cross-section of tunnels, e.g. by restoring the floor to its original level
-
- 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
- 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
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
-
- 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
- E21D11/14—Lining predominantly with metal
-
- 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
- E21D11/40—Devices or apparatus specially adapted for handling or placing units of linings or supporting units for tunnels or galleries
-
- 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
- E21D9/001—Improving soil or rock, e.g. by freezing; Injections
-
- 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
- E21D9/12—Devices for removing or hauling away excavated material or spoil; Working or loading platforms
Abstract
The invention discloses a kind of tunnel circumferential directions to dig method, it is installed in originating active well after bracing members frame, reaction frame and circumferential direction dig shield mechanism, jacking mechanism can be driven circumferential direction and dig shield mechanism circumferential direction driving, and under the cooperation of the Rear impacts such as pipe sheet assembling mechanism, control device, hydraulic transmission and slagging mechanism, the radial direction for completing the first ring in former tunnel digs work；Then the soil body for digging region to circumferential direction that side toward the former tunnel of section of jurisdiction are digged in assembled ring squeezes into more circumferentially distributed pipe curtain steel pipes and toward pipe curtain pouring concrete within steel pipe longitudinally to form cricoid pipe curtain supporting construction；Then, former tunnel is located to the soil body that encloses in pipe curtain supporting construction and after former section of jurisdiction excavates and remove, it is enclosed in pipe curtain supporting construction and applies armored concrete tubulose liner structure, the circumferential direction for completing tunnel digs work, and entire circumferential direction digs process and is not take up ground space, do not block the traffic and do not damage surface structures.
Description
Technical field
The present invention relates to tunnels to dig technical field, in particular to a kind of tunnel circumferential direction digs method.
Background technique
Underground traffic tunnels (such as highway or subway) is largely built in large- and-medium size cities at present.Wherein, underground traffic tunnel
The variable cross-section section (lane gradually broadens, such as regions at highway ramp entrance or at metro depot entrance etc.) in road is ground
The difficult point and emphasis that lower traffic tunnel is built, need to be in the isometrical tunnel built and (traditional shield machine construction has relatively been mostly used to build)
On the basis of dig building.The construction method that digs of conventional traffic tunnel variable cross-section section includes cut and cover method, cap excavation method, mine
Method etc..But it is above-mentioned build engineering method on traffic above-ground and building can generate certain influence, (such as the cut and cover method) having also needs to account for
With a large amount of ground space.
With economic development, certain traffic above-grounds are busy, region of population and building dense, do not take above-mentioned
The construction space of engineering method, using the almost unique selection of the engineering method of complete no-dig technique, to reduce constructing tunnel as far as possible over the ground
Layer disturbance and the influence of ground environment.
Summary of the invention
The main object of the present invention is to propose that a kind of tunnel circumferential direction digs method, it is intended to it avoids occupying ground space, and
It prevents from having an impact traffic above-ground and building.
To achieve the above object, the present invention proposes that a kind of tunnel circumferential direction digs method, comprising steps of
S1, region is digged to circumferential direction in former tunnel, along the longitudinal direction chisels at least row's original section of jurisdiction for being located at bottommost, and
Soil excavation is carried out, is formed and originates active well for what circumferential direction digged, longitudinal row's original section of jurisdiction includes at least two pieces circumferential phases
Adjacent former section of jurisdiction；
S2, bracing members frame and reaction frame are applied in active well originating, dig the subsequent circumferential driving of shield mechanism for circumferential direction and mention
For initial support power；
S3, the circumferential assembled work for digging shield mechanism of completion in active well is being originated, and is making the circumferential top for digging shield mechanism
It offsets into device and reaction frame；
S4, thrust is imposed by the arc-shaped substrate that jacking mechanism digs shield mechanism to circumferential direction, to drive circumferential direction to dig shield
Mechanism circumferential direction tunnels and cuts the soil body, meanwhile, the dregs for flowing into Tu Cang is discharged by slagging mechanism；
S5, circumferential direction dig shield mechanism circumferential direction tunnel one piece dig the distance of section of jurisdiction after, stop driving, and by jacking mechanism
After separating with reaction frame, section of jurisdiction is digged for longitudinal assembled at least one piece in the region just tunneled by pipe sheet assembling mechanism；
S6, jacking mechanism and the just assembled section of jurisdiction that digs are offseted, and by jacking mechanism driving circumferential direction dig shield mechanism after
Continuous circumferential driving simultaneously cuts the soil body, meanwhile, it is discharged by the dregs that slagging mechanism will flow into Tu Cang；
S7, shield mechanism is digged in circumferential direction continue to stop driving after circumferential one piece of driving digs the distance of section of jurisdiction；
S8, it will just one piece of driving dig after section of jurisdiction chisels apart from corresponding former section of jurisdiction and clear up corresponding surflaes, by jacking mechanism
It is separated with section of jurisdiction is digged, and longitudinally continues assembled at least one piece by pipe sheet assembling mechanism and dig section of jurisdiction；
S9, shield mechanism circumferential direction is digged by step S6 to S8 repetitive operation to circumferential direction tunnel to reentering and originate active well；
S10, circumferential direction is digged after mechanism, bracing members frame and reaction frame disassemble and remove and originate active well, carries out concreting
Active well is originated with filling；
S11, last assembled circumferential block dig section of jurisdiction, to complete the assembled work that a ring digs section of jurisdiction；
S12, the soil body for digging region to circumferential direction in the past former tunnel in the side that assembled ring digs section of jurisdiction are longitudinally squeezed into more
The circumferentially distributed pipe curtain steel pipe of root and the primary and secondary lock for connecting circumferential adjacent tubes curtain steel pipe, and coagulation is perfused in pipe curtain steel pipe
Soil is to form cricoid pipe curtain supporting construction；
S13, former tunnel is located to the soil body enclosed in pipe curtain supporting construction and after former section of jurisdiction excavates and remove, in pipe curtain supporting construction
It inside encloses and applies armored concrete tubulose liner structure, the circumferential direction for completing tunnel digs work.
Technical solution of the present invention first digs region to circumferential direction in former tunnel, will be located at bottommost at least along the longitudinal direction
One row's original section of jurisdiction (longitudinal row's original section of jurisdiction includes the former section of jurisdiction that at least two pieces of circumferential directions are adjacent) is chiseled, and carries out soil excavation,
It is formed and originates active well for what circumferential direction digged, and bracing members frame, reaction frame and present invention circumferential direction are installed in originating active well
After digging shield mechanism, jacking mechanism can be driven circumferential direction and dig shield mechanism circumferential direction driving, and in pipe sheet assembling mechanism, control
Under the cooperation of the Rear impacts such as device, hydraulic transmission and slagging mechanism, pass through the circumferential direction side of digging of complete no-dig technique
Formula, the radial direction for completing the first ring in former tunnel dig work；Then in the past former tunnel in the side that assembled ring digs section of jurisdiction
More circumferentially distributed pipe curtain steel pipes are longitudinally squeezed into the circumferential soil body for digging region and connect circumferential adjacent tubes curtain steel pipe
Primary and secondary lock, and toward pipe curtain pouring concrete within steel pipe to form cricoid pipe curtain supporting construction；Then, former tunnel is located at pipe
After the soil body and former section of jurisdiction enclosed in curtain supporting construction is excavated and removed, is enclosed in pipe curtain supporting construction and apply armored concrete tubulose
Liner structure, the circumferential direction for completing tunnel dig work, entire circumferential direction dig process be not take up ground space, do not block the traffic and
Do not damage surface structures.In addition, circumferential direction of the present invention digs shield mechanism can carry out assembled or follow according to the length for digging region
Ring uses, flexible and efficient, and after the completion of construction, can dig shield mechanism to circumferential direction and recycle, dig cost to save circumferential direction.
Detailed description of the invention
Fig. 1 is the schematic diagram that circumferential direction digs shield mechanism；
Fig. 2 is that circumferential direction digs shield mechanism and is loaded on the schematic diagram for originating active well and its jacking mechanism and when reaction frame offsets；
Fig. 3 is the schematic diagram that circumferential direction digs that shield mechanism circumferential direction tunnels certain distance and assembled multi-disc digs section of jurisdiction；
Fig. 4 is that circumferential direction digs shield mechanism circumferential direction one ring distance of driving, and returns to the schematic diagram for originating active well；
Fig. 5 is that former tunnel circumferential direction digs and an assembled ring digs the cross-sectional view behind section of jurisdiction；
Fig. 6 is that former tunnel circumferential direction digs and an assembled ring digs the Longitudinal cross section schematic behind section of jurisdiction；
Fig. 7 is the schematic diagram completed after cricoid pipe curtain support construction；
Fig. 8 is the schematic diagram completed after round tubular liner structure construction；
Fig. 9 is the schematic diagram completed after the construction of rectangular tubular liner structure；
Figure 10 is the connection schematic diagram of circumferential two adjacent pipe curtain steel pipes；
Figure 11 is the connection schematic diagram of two longitudinally adjacent pipe curtain steel pipes.
Specific embodiment
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 embodiments of the present invention, instead of all the embodiments.Based on the implementation in the present invention
Example, every other embodiment obtained by those of ordinary skill in the art without making creative efforts belong to
The scope of protection of the invention.
It is to be appreciated that if related in the embodiment of the present invention directionality instruction (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 is only used
In explaining in relative positional relationship, the motion conditions etc. under a certain particular pose (as shown in the picture) between each component, if should
When particular pose changes, then directionality instruction also correspondingly changes correspondingly.
It, should " first " or " the in addition, if relating 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.It in addition, the technical solution between each embodiment can be combined with each other, but must be with ordinary skill
Based on personnel can be realized, this technical side will be understood that 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 scope within.
The present invention proposes that a kind of tunnel circumferential direction digs method.
In embodiments of the present invention, as shown in Figure 1 to 11, the tunnel circumferential direction dig method comprising steps of
S1, region is digged to circumferential direction in former tunnel 100, at least row's original section of jurisdiction 101 of bottommost will be located at along the longitudinal direction
It chisels, and carries out soil excavation, formed and originate active well 103 for what circumferential direction digged, longitudinal row's original section of jurisdiction 101 includes extremely
The adjacent former section of jurisdiction 101 of few two pieces of circumferential directions.
Specifically, how many rankings are chiseled in the former section of jurisdiction 101 of bottommost depending on digging to circumferential direction along former 100 longitudinal direction of tunnel
Depending on the size in region and the circumferential longitudinal size for digging shield, such as a row, two can be chiseled along former 100 longitudinal direction of tunnel
Row, three rows, four rows or more, as shown in Figure 2, Figure 4 shows, the case where to chisel four rows.
Specifically, soil excavation is carried out, is formed for further including in the circumferential step S1 for originating active well 103 digged
Assembling reinforcement, the process of casting concrete are collapsed with preventing from originating active well 103.
In embodiments of the present invention, the one of at least longitudinal direction row's original section of jurisdiction 101(that will be located at bottommost along the longitudinal direction
Arranging former section of jurisdiction includes the former section of jurisdiction that at least two pieces of circumferential directions are adjacent) it chisels, and further include along former tunnel before carrying out soil excavation
100 circumferential direction and longitudinal direction, the injected hole (not shown) of the former section of jurisdiction 101 through former tunnel 100 treat circumferential direction and dig region
The soil body carries out the process of grouting and reinforcing, should illustrate, grouting and reinforcing range 106, which should be greater than, digs region to circumferential direction.
It further, in step sl, further include being inserted into steel plate in soil body two sides to be excavated before carrying out soil excavation
The step of stake 107 is as retaining wall.
S2, bracing members frame 104 and reaction frame 105 are applied in active well 103 originating, it is subsequent to dig shield mechanism for circumferential direction
Circumferential driving initial support power is provided.
Specifically, bracing members frame 104 is mainly used for mainly using from bottom support ring to shield mechanism, reaction frame 105 is digged
It offsets in the jacking mechanism 6 for digging mechanism with circumferential direction, the driving for digging shield mechanism for circumferential direction provides initial reaction of bearing.
S3, the circumferential assembled work for digging shield mechanism of completion in active well 103 is being originated, and circumferential direction is made to dig shield machine
The jacking mechanism 6 of structure offsets with reaction frame 105.
Specifically, it includes prone arc-shaped substrate 1 which, which digs shield mechanism, and the left and right sides of substrate 1 is set
The side partition 2 that center line (i.e. the straight line that the center of circle of 1 all areas of the substrate is linked to be) direction of oriented substrate 1 extends, side partition 2
To become bent arc-shaped plate forward, and the center line of side partition 2 is overlapped with the center line of substrate 1, the side of the left and right sides every
Installing zone is surrounded between plate 2 and substrate 1, and at least one set of circumferential shield unit, every group of circumferential direction shield unit are installed in installing zone
Including being located at installing zone leading portion and part forward extends out the cutting apparatus 3 of installing zone, loaded on installing zone and after being located at cutting apparatus 3
The supporting arrangement of side, and loaded on installing zone and positioned at the jacking mechanism 6 at supporting arrangement rear, the supporting arrangement includes being located at
The native storehouse 4 at 3 rear of cutting apparatus and engine chamber 5 positioned at native 4 rear of storehouse, in the course of work, jacking mechanism 6 is that substrate 1 mentions
For the thrust of circumferential direction driving, cutting apparatus 3 drives the cutter 31 on its cutterhead to rotate and cut the soil body, and native storehouse 4 is for accommodating quilt
Cut the dregs that the soil body generates.Specifically, the antetheca in native storehouse 4 is equipped with into cinder notch 41, and cutting apparatus 3 cuts the dregs that the soil body generates
Entered cinder notch 41 and enter native storehouse 4, and be discharged native storehouse 4 through slagging mechanism 500 matched with shield mechanism, engine chamber 5 be equipped with
The shaft connection of cutting apparatus 3 driving device (it is not shown, be the prior art for example including rotating electric machine, transmission mechanism etc.,
It is not discussed here), for driving the cutter 31 of cutting apparatus 3 to rotate and cutting the soil body, installing zone is located at jacking mechanism 6
The region at rear is for splicing the region for digging section of jurisdiction 102.
Specifically, the quantity of the circumferential shield unit is one group or multiple groups, specifically can be depending on digging demand
When multiple groups, multiple groups circumferential direction shield unit longitudinal (i.e. along the axial direction in former tunnel 100) distribution, and by being fixedly arranged in substrate
Partition 7 separates, as shown in Figure 1, being the case where being equipped with four groups of circumferential direction shield units in installation space.Specifically, middle partition 7 is same
Sample is to become bent arc-shaped plate forward, and the center line of middle partition 7 is overlapped with the center line of substrate 1, but the circumferential direction of middle partition 7 is long
Degree is less than substrate 1.
It is to be appreciated that native storehouse 4, the specific structure and set-up mode of engine chamber 5 and cutting apparatus 3 and native storehouse 4 and matching
Matching relationship between the slagging mechanism 500 of set is referred to traditional shield machine (such as Publication No. " 1730907 A of CN "
The application for a patent for invention of 102287201 A of combined balance shield machine disclosed in application for a patent for invention " or Publication No. CN
The disclosed shield machine etc. with center drill system) native storehouse 4, engine chamber 5 and cutting apparatus 3 embodiment, here no longer
It is repeated.Certainly, circumferential direction of the present invention digs the arc-shaped substrate 1 and the tubular shield shell of traditional shield machine of shield mechanism
Structure has certain difference, but this have no effect on circumferential direction of the present invention dig native storehouse 4, engine chamber 5 and the cutting apparatus 3 of shield mechanism with
And the reference setting of the matching relationship between native storehouse 4 and matched slagging mechanism 500.
Specifically, institute's cutter 31 includes at least one of hobboing cutter 311, cutter 312 and center cutter 313, can be according to the soil body
Type choosing to corresponding tool type, cutter 31 is specific how loaded on cutterhead and how driving device drives cutterhead to turn
The mounting means of the dynamic cutting apparatus for being referred to traditional shield machine, is not discussed here.
Further, the rear end of the side partition 2 is equipped with sealing brush 8, and to reduce in tunneling process, dregs enters from rear
Installing zone.
S4, thrust is applied by the arc-shaped substrate that 6 pairs of circumferential directions of jacking mechanism dig shield mechanism, to drive circumferential direction to dig shield
Structure mechanism circumferential direction tunnels and cuts the soil body, meanwhile, the dregs for flowing into native storehouse 4 is discharged by slagging mechanism.
It is to be appreciated that as traditional shield machine, circumferential direction of the present invention dig shield mechanism equally and have it is corresponding after match
Set system, Rear impact generally comprise pipe sheet assembling mechanism 200, control device 300, hydraulic transmission 400 and deslagging
Mechanism 500, wherein pipe sheet assembling mechanism 200 is for realizing the circumferential direction for the section of jurisdiction for digging region and the spelling of longitudinal (or axial)
Dress, slagging mechanism 500 is used to for the dregs in native storehouse 4 being discharged, and is delivered to muck haulage vehicle 600 through Residue extraction pipeline 501, and by muck haulage vehicle
600 transport tunnel.It is distinguished with traditional shield mechanism, digs the corresponding Rear impact of shield mechanism with circumferential direction of the present invention
In pipe sheet assembling mechanism 200 be located at circumferential direction and dig outside shield mechanism, specifically, former tunnel is corresponding to dig the vertical of region to circumferential direction
It is equipped with portal frame 700 to the position in two outsides, duct piece assembling machine 200 is installed on the longitudinal drive shaft 701 of portal frame 700, and
It can move during the work time under the driving of hydraulic transmission 400 along portal frame 700 to adjust its lengthwise position, deslagging
Mechanism 500, which is individually located at, digs region side to circumferential direction, and separates with hydraulic transmission and control device etc., can effectively keep away
Exempt from construction to interfere with each other, improves casting drivage efficiency.
S5, circumferential direction dig shield mechanism circumferential direction tunnel one piece dig the distance of section of jurisdiction 102 after, stop driving, and will
It is longitudinal at least one piece assembled in the region just tunneled by pipe sheet assembling mechanism 200 after jacking mechanism 6 is separated with reaction frame 105
Dig section of jurisdiction 102；
Specifically, section of jurisdiction 102 is digged for longitudinal assembled how many pieces in the region just tunneled by pipe sheet assembling mechanism 200, it is main to regard
Depending on circumferential direction digs the longitudinal size of shield mechanism, such as can be longitudinal assembled one piece, two pieces, three pieces, four pieces or more, such as
It is the case where longitudinal four pieces of assembly digs section of jurisdiction 102 shown in Fig. 6.
S6, jacking mechanism 6 and the rigid assembled section of jurisdiction 102 that digs are offseted, and drives circumferential direction to dig shield by jacking mechanism 6
Structure mechanism continues circumferential driving and cuts the soil body, meanwhile, the dregs for flowing into native storehouse 4 is discharged by slagging mechanism.
In embodiments of the present invention, the medial surface of the side partition 2 and/or the side of middle partition 7 offer arc-shaped slot
21,71, the center of circle of the arc-shaped slot 21,71 is located on the center line of substrate 1, and the jacking mechanism 6 includes multiple jack
62 and supporting boot 61, supporting boot 61 be connected to one end of corresponding jack 62, the other end of jack 62 is connected with guide part 63,
Guide part 63 is plugged in arc-shaped slot 21,71, when work, supporting boot 61 and reaction frame 105 or what is spliced dig section of jurisdiction
It offsets, to provide reaction of bearing when jack 62 stretches, so that the other end of jack 62 is by guide part 63 through arc-shaped
21,71 pairs of side partitions 2 of slot and/or middle partition 7 provide the thrust of circumferential driving, i.e., when jack stretches, by with supporting boot phase
The reaction frame supported or the section of jurisdiction that digs spliced provide reaction of bearing, provide circumferential driving to side partition and/or middle partition
Thrust, so that entire circumferential direction be driven to dig shield mechanism circumferential direction driving.Specifically, supporting boot 61 is articulated with the one of jack 62
End, guide part 63 are plugged in arc-shaped slot 21,71, and can be as needed before the circumferential driving of drive substrate 1 or circumferential
Guide part 63 is adjusted during driving in the position of arc-shaped slot 21,71, to adjust the stress side of partition and/or middle partition 7
To, and guarantee that circumferential direction digs shield mechanism and can protect circumferential driving.
In a preferred embodiment of the present invention, the both side surface of the medial surface of side partition 2 and middle partition 7 offers respectively
Arc-shaped slot 21, the 71(of at least two concentrics are as shown in Figure 1, for the case where opening up two arc-shaped slots 21,71 respectively), often
Corresponding at least two jack 62 of arc-shaped slot 21,71 of the both side surface of the medial surface of a side partition 2 and each middle partition 7
(as shown in Figure 1, for the case where respectively corresponding two jack 62), one end of corresponding at least two jack 62 and supporting boot
61 common connections, the other end are connect jointly with guide part 63, and guide part 63 is plugged in corresponding at least two arc-shaped slots
21,71.This set-up mode can make circumferential direction dig shield mechanism in tunneling process, obtain more uniform driving power.
S7, shield mechanism is digged in circumferential direction continue to stop driving after circumferential one piece of driving digs the distance of section of jurisdiction 102.
S8, it will just one piece of driving dig after section of jurisdiction 102 chisels apart from corresponding former section of jurisdiction 101 and clear up corresponding surflaes,
Jacking mechanism 6 is separated with section of jurisdiction 102 is digged, and continues assembled at least one piece by 200 longitudinal direction of pipe sheet assembling mechanism and digs pipe
Piece 102；
Specifically, in step s 8, longitudinal to continue to dig section of jurisdiction 102 in the assembled quantity for digging section of jurisdiction 102 and step S5
Quantity is consistent.
It is to be appreciated that after tunneling the distance that one piece digs section of jurisdiction 102 using every circumferential direction, then chisel corresponding former section of jurisdiction
101 and clear up the mode of surflaes, it is ensured that the structural stability of former 100 section of jurisdiction of tunnel prevents the excessive change in former 100 section of jurisdiction of tunnel
Shape.
S9, shield mechanism circumferential direction is digged by step S6 to S8 repetitive operation to circumferential direction tunnel to reentering and originate active well
103(should be noted that in step s 9, should last block of first not assembled circumferential direction dig section of jurisdiction).
S10, circumferential direction is digged after mechanism, bracing members frame and reaction frame disassemble and remove and originate active well 103, carries out coagulation
Soil is poured to fill and originate active well 103.
As for specifically how to be not discussed here using the prior art into ground concreting, it should be noted that in advance
Last circumferential block is stayed to dig the position of section of jurisdiction.
S11, last assembled circumferential block dig section of jurisdiction 102, to complete the assembled work that a ring digs section of jurisdiction.
S12, the side of section of jurisdiction is digged toward the soil body longitudinal direction for digging region 106 to circumferential direction in former tunnel in assembled ring
It squeezes into more circumferentially distributed pipe curtain steel pipes 9 and connects the primary and secondary lock of circumferential adjacent tubes curtain steel pipe 9, and past pipe curtain steel pipe 9
Interior concrete perfusion is to form cricoid pipe curtain supporting construction.
Specifically, existing push bench process can be used or ram the side that the methods of tube method digs section of jurisdiction in assembled ring
The soil body for digging region to circumferential direction toward original tunnel longitudinally squeezes into more circumferentially distributed pipe curtain steel pipes 9 and connection is circumferential adjacent
The primary and secondary of pipe curtain steel pipe 9 latches.Specifically, the primary and secondary lock includes being separately fixed at circumferential two adjacent pipe curtain steel pipes 9
Son lock 92 and female locking device 91, female locking device 91 includes two intervals fixed (such as welding) in circumferential 9 periphery of a pipe curtain steel pipe
The base item 911 of wall, and the first limiting section 912 extended towards respectively from the end of base item 911, two first limiting sections
Interval between 912 forms insertion groove, and sub- lock 92 includes the conducting bar 921 for being fixed on circumferential another 9 periphery wall of pipe curtain steel pipe, institute
State conducting bar 921 and insertion groove and mutually fit and can be inserted into insertion groove, the end of conducting bar 921 extend to in the first limiting section 912
The second limiting section 922 that surface is in contact will be circumferential by the mutual limit of the first limiting section 912 and the second limiting section 922
Adjacent two pipe curtain steel pipes 9 clamping.
It further, further include in pipe curtain supporting construction before the concrete perfusion in pipe curtain steel pipe 9 in step S12
The advanced tubule 10 of peripheral wall aperture (being relatively mostly plum blossom hole, not shown) is squeezed between the circumferential adjacent pipe curtain steel pipe 9 in peripheral position
And slip casting carries out the process of reinforcing and sealing, the advanced tubule 10 is the prior art, here no longer to other specific structures
It is repeated.
In embodiments of the present invention, such as when the longitudinal length that circumferential direction digs region is greater than the length of single pipe curtain steel pipe 9,
It is contemplated that more of longitudinal lap joint (such as two or three or more) pipe curtain steel pipe 9, so that the pipe curtain steel pipe after longitudinal spliced
It passes through and digs region to circumferential direction.Specifically, can two longitudinally adjacent root canal curtain steel pipes 9 it is opposite both ends difference it is fixed (such as
Welding) the sub- connector 94 of tubulose and tubulose female connector 93, the internal diameter phase of the outer diameter and tubulose female connector 93 of the sub- connector 94 of tubulose
Fit and can be inserted into tubulose female connector 93, the region that tubulose female connector 93 and the sub- connector 94 of tubulose are overlapped respectively circumferential direction offer it is multiple
Opposite the first screw hole and the second screw hole (not indicating), the first opposite screw hole and the second screw hole are equipped with bolt 95, will manage
Shape connector 94 and tubulose female connector 93 detachably fasten, so that longitudinally adjacent pipe curtain steel pipe 9 be overlapped.Certainly, Zong Xiangxiang
Adjacent pipe curtain steel pipe 9 can also directly weld fastening.
It further, further include in tubulose female connector after the sub- connector of tubulose and tubulose female connector detachably being fastened
The step of periphery cladding sealing bound edge or sealant tape (not shown), play antiseepage leakproof.
S13, former tunnel is located to the soil body enclosed in pipe curtain supporting construction and after former section of jurisdiction excavates and remove, in pipe curtain supporting
It is enclosed in structure and applies armored concrete tubulose liner structure 108, the circumferential direction for completing tunnel digs work.Entire circumferential direction digs process
It is not take up ground space, do not block the traffic and does not damage surface structures.In addition, circumferential direction of the present invention dig shield mechanism can basis
The length for digging region is carried out assembled or is recycled, flexible and efficient, and after the completion of construction, can dig shield mechanism to circumferential direction
It is recycled, digs cost to save circumferential direction.
Specifically, the tubulose liner structure can be shown in Fig. 8 for round tubular liner structure 108() or be polygon
(such as rectangle is shown in Fig. 9) tubulose liner structure 108 when being multiangular tubular liner structure, also needs first in multiangular tubular lining cutting knot
Elder generation casting concrete bed course 109(is shown in Fig. 9 between the bottom enclosed in the bottom of structure and pipe curtain supporting construction), with support polygon pipe
Shape liner structure 108.
The above description is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all 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
It is included in other related technical areas in scope of patent protection of the invention.
Claims (10)
1. a kind of tunnel circumferential direction digs method, which is characterized in that comprising steps of
S1, region is digged to circumferential direction in former tunnel, along the longitudinal direction chisels at least row's original section of jurisdiction for being located at bottommost, and
Soil excavation is carried out, is formed and originates active well for what circumferential direction digged, longitudinal row's original section of jurisdiction includes at least two pieces circumferential phases
Adjacent former section of jurisdiction；
S2, bracing members frame and reaction frame are applied in active well originating, dig the subsequent circumferential driving of shield mechanism for circumferential direction and mention
For initial support power；
S3, the circumferential assembled work for digging shield mechanism of completion in active well is being originated, and is making the circumferential top for digging shield mechanism
It offsets into device and reaction frame；
S4, thrust is imposed by the arc-shaped substrate that jacking mechanism digs shield mechanism to circumferential direction, to drive circumferential direction to dig shield
Mechanism circumferential direction tunnels and cuts the soil body, meanwhile, the dregs for flowing into Tu Cang is discharged by slagging mechanism；
S5, circumferential direction dig shield mechanism circumferential direction tunnel one piece dig the distance of section of jurisdiction after, stop driving, and by jacking mechanism
After separating with reaction frame, section of jurisdiction is digged for longitudinal assembled at least one piece in the region just tunneled by pipe sheet assembling mechanism；
S6, jacking mechanism and the just assembled section of jurisdiction that digs are offseted, and by jacking mechanism driving circumferential direction dig shield mechanism after
Continuous circumferential driving simultaneously cuts the soil body, meanwhile, it is discharged by the dregs that slagging mechanism will flow into Tu Cang；
S7, shield mechanism is digged in circumferential direction continue to stop driving after circumferential one piece of driving digs the distance of section of jurisdiction；
S8, it will just one piece of driving dig after section of jurisdiction chisels apart from corresponding former section of jurisdiction and clear up corresponding surflaes, by jacking mechanism
It is separated with section of jurisdiction is digged, and longitudinally continues assembled at least one piece by pipe sheet assembling mechanism and dig section of jurisdiction；
S9, shield mechanism circumferential direction is digged by step S6 to S8 repetitive operation to circumferential direction tunnel to reentering and originate active well；
S10, circumferential direction is digged after mechanism, bracing members frame and reaction frame disassemble and remove and originate active well, carries out concreting
Active well is originated with filling；
S11, last assembled circumferential block dig section of jurisdiction, to complete the assembled work that a ring digs section of jurisdiction；
S12, the soil body for digging region to circumferential direction in the past former tunnel in the side that assembled ring digs section of jurisdiction are longitudinally squeezed into more
The circumferentially distributed pipe curtain steel pipe of root and the primary and secondary lock for connecting circumferential adjacent tubes curtain steel pipe, and coagulation is perfused in pipe curtain steel pipe
Soil is to form cricoid pipe curtain supporting construction；
S13, former tunnel is located to the soil body enclosed in pipe curtain supporting construction and after former section of jurisdiction excavates and remove, in pipe curtain supporting construction
It inside encloses and applies armored concrete tubulose liner structure, the circumferential direction for completing tunnel digs work.
2. tunnel circumferential direction as described in claim 1 digs method, it is characterised in that: carry out soil excavation, formed for circumferential direction
It further include assembling reinforcement, the process of casting concrete in the step S1 for originating active well digged.
3. tunnel circumferential direction as described in claim 1 digs method, it is characterised in that: bottommost will be located at along the longitudinal direction
At least row's original section of jurisdiction is chiseled, and further includes the circumferential direction and longitudinal direction along former tunnel, through former tunnel before carrying out soil excavation
The injected hole of former section of jurisdiction treat the process that the circumferential soil body for digging region carries out grouting and reinforcing.
4. tunnel circumferential direction as described in claim 1 digs method, it is characterised in that: in the step S1, opened carrying out the soil body
It further include the process in soil body two sides to be excavated insertion steel sheet pile as retaining wall before digging.
5. tunnel circumferential direction as described in claim 1 digs method, it is characterised in that: it includes to antecurvature that circumferential direction, which digs shield mechanism,
The bent arc-shaped substrate, the left and right sides of substrate are equipped with the side partition extended to the centerline direction of substrate, and side partition is
Become the arc-shaped plate that song and center line are overlapped with the center line of substrate forward, is enclosed between the side partition and substrate of the left and right sides
At installing zone, at least one set of circumferential shield unit is installed in installing zone, every group of circumferential direction shield unit includes before being located at installing zone
Section and part forward extend out the cutting apparatus of installing zone, loaded on installing zone and positioned at the supporting arrangement at cutting apparatus rear, and
Loaded on installing zone and positioned at the jacking mechanism at supporting arrangement rear, the supporting arrangement includes being located at cutting apparatus rear
Tu Cang and engine chamber positioned at the rear Tu Cang, in the course of work, jacking mechanism provides the thrust of circumferential driving, cutting for substrate
Device drives the cutter on its cutterhead to rotate and cut the soil body, and Tu Cang is used to accommodate the dregs for being cut soil body generation, engine chamber
The driving device connecting with the shaft of cutting apparatus is installed, for driving the cutter of cutting apparatus to rotate.
6. tunnel circumferential direction as claimed in claim 5 digs method, it is characterised in that: the jacking mechanism includes multiple jack
And supporting boot, supporting boot are connected to one end of corresponding jack, the other end of jack is connected with guide part, and guide part is plugged in
In corresponding side partition or middle partition arc-shaped slot, and in jack stretching, extension, by the reaction frame that offsets with supporting boot or
The section of jurisdiction that digs spliced provides reaction of bearing, the thrust of circumferential driving is provided to side partition and/or middle partition, to drive whole
A circumferential direction digs shield mechanism circumferential direction driving.
7. tunnel circumferential direction as described in claim 1 digs method, it is characterised in that: in step S12, be perfused in pipe curtain steel pipe
It further include squeezing into the advanced of peripheral wall aperture between the circumferential adjacent pipe curtain steel pipe in pipe curtain supporting construction periphery position before concrete
Ductule and slip casting carry out the process of reinforcing and sealing.
8. tunnel circumferential direction as claimed in any of claims 1 to 7 in one of claims digs method, it is characterised in that: digged when to circumferential direction
When the longitudinal length in region is greater than the length of single pipe curtain steel pipe, the more root canal curtain steel pipes of longitudinal lap joint, so that after longitudinal spliced
Pipe curtain steel pipe, which is passed through, digs region to circumferential direction.
9. tunnel circumferential direction as claimed in claim 8 digs method, it is characterised in that: two longitudinally adjacent root canal curtain steel pipes are opposite
Both ends distinguish fixed adapter tube shape connector and tubulose female connector, the outer diameter of the sub- connector of tubulose and the internal diameter of tubulose female connector
It is mutually suitable and can be inserted into tubulose female connector, the region of tubulose female connector and the sub- connector overlapping of tubulose respectively circumferential direction offer it is multiple opposite
The first screw hole and the second screw hole, the first opposite screw hole and the second screw hole are equipped with bolt, by the sub- connector of tubulose and tubulose
Female connector detachably fastens.
10. tunnel circumferential direction as claimed in claim 9 digs method, it is characterised in that: can by the sub- connector of tubulose and tubulose female connector
It further include in the periphery cladding sealing bound edge of tubulose female connector or the process of sealant tape after disassembly fastens.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811052171.3A CN109026030A (en) | 2018-09-10 | 2018-09-10 | Tunnel circumferential direction digs method |
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| CN201811052171.3A CN109026030A (en) | 2018-09-10 | 2018-09-10 | Tunnel circumferential direction digs method |
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| CN201811052171.3A Pending CN109026030A (en) | 2018-09-10 | 2018-09-10 | Tunnel circumferential direction digs method |
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| CN109458183A (en) * | 2018-12-28 | 2019-03-12 | 中铁工程装备集团有限公司 | Expand former tunnel diameter and completes the development machine and its construction method of tunnel-liner |
| CN112049650A (en) * | 2020-09-16 | 2020-12-08 | 中国铁路设计集团有限公司 | Method for expanding and excavating existing small shield tunnel by using large shield |
| CN113574246A (en) * | 2019-02-21 | 2021-10-29 | 托彭有限公司 | System and method for simultaneous excavation and segment splicing of TBMs by propelling the hull |
| CN113833479A (en) * | 2021-09-01 | 2021-12-24 | 上海市城市建设设计研究总院（集团）有限公司 | Construction method of main line shield tunnel and ramp connecting structure |
| CN114198116A (en) * | 2021-11-10 | 2022-03-18 | 同济大学 | Pipe curtain box culvert integration tunnel structure with connect and strengthen |
| CN115142859A (en) * | 2022-09-01 | 2022-10-04 | 中国矿业大学(北京) | Pipe curtain construction equipment and pipe curtain construction method |
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| CN112049650A (en) * | 2020-09-16 | 2020-12-08 | 中国铁路设计集团有限公司 | Method for expanding and excavating existing small shield tunnel by using large shield |
| CN112049650B (en) * | 2020-09-16 | 2022-07-15 | 中国铁路设计集团有限公司 | Method for expanding and excavating existing small shield tunnel by using large shield |
| CN113833479A (en) * | 2021-09-01 | 2021-12-24 | 上海市城市建设设计研究总院（集团）有限公司 | Construction method of main line shield tunnel and ramp connecting structure |
| CN113833479B (en) * | 2021-09-01 | 2023-05-09 | 上海市城市建设设计研究总院（集团）有限公司 | Method for constructing connection structure of main line shield tunnel and ramp |
| CN114198116A (en) * | 2021-11-10 | 2022-03-18 | 同济大学 | Pipe curtain box culvert integration tunnel structure with connect and strengthen |
| CN115142859A (en) * | 2022-09-01 | 2022-10-04 | 中国矿业大学(北京) | Pipe curtain construction equipment and pipe curtain construction method |
| CN115142859B (en) * | 2022-09-01 | 2023-01-20 | 中国矿业大学(北京) | Pipe curtain construction equipment and pipe curtain construction method |
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