CN110030015A - A kind of control ultra-deep ventilating shaft strengthening control construction method - Google Patents
A kind of control ultra-deep ventilating shaft strengthening control construction method Download PDFInfo
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- CN110030015A CN110030015A CN201910213158.XA CN201910213158A CN110030015A CN 110030015 A CN110030015 A CN 110030015A CN 201910213158 A CN201910213158 A CN 201910213158A CN 110030015 A CN110030015 A CN 110030015A
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- ventilating shaft
- side plate
- construction
- supporting mechanism
- hole
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Classifications
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- 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
-
- 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
- E21D11/04—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
- E21D11/107—Reinforcing elements therefor; Holders for the reinforcing elements
-
- 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
- E21D11/38—Waterproofing; Heat insulating; Soundproofing; Electric insulating
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
Abstract
The invention discloses a kind of control ultra-deep ventilating shaft strengthening control construction methods, comprising the following steps: 1) preparation of construction, 2) construction of waterproof layer, 3) one layer of side plate supporting, 4) steel reinforcement cage laying, 5) two layers of side plate supporting, 6) bracing means construction, 7) concrete construction and 8) final acceptance of construction.Reinforced construction method of the invention is able to satisfy the ultra-deep ventilating shaft strengthening construction of different depth, the safety in utilization for substantially increasing ventilating shaft prevents the time from having grown and causes to collapse, and construction procedure is simple and convenient, influence more preferable compared to existing ventilating shaft consolidation effect, when reducing shield-tunneling construction to ventilating shaft entirety.
Description
Technical field
The present invention relates to a kind of control ultra-deep ventilating shaft strengthening control construction methods.
Background technique
It is typically necessary in the middle part of construction section during construction of underground tunnel and ventilating shaft is set, to meet the need blown in tunnel
The load capacity of shield machine when wanting, while needing to meet shield-tunneling construction.With the continuous maturation of technology, generally using shield method into
Row tunnel excavation, existing ventilating shaft generally take into account the function of launching shaft, received well or construction shaft, hang to meet shield
Out or the function that originates, the project scale of ventilating shaft is larger, and depth is deeper, ventilating shaft reinforce it is not in place tend to cause it is subsequent
The loosening or collapsing of wall, there is only some potential safety problemss, and will increase the difficulty of construction.
Summary of the invention
Present invention aims at provide a kind of control ultra-deep ventilating shaft strengthening control for deficiency of the prior art
The technical solution of construction method, the reinforced construction method are able to satisfy the ultra-deep ventilating shaft strengthening construction of different depth, substantially increase
The safety in utilization of ventilating shaft prevents the time from having grown and causes to collapse, and construction procedure is simple and convenient, compares existing ventilating shaft consolidation effect
More preferably, influence when reducing shield-tunneling construction to ventilating shaft entirety.
In order to solve the above-mentioned technical problem, the present invention adopts the following technical scheme:
A kind of control ultra-deep ventilating shaft strengthening control construction method, it is characterised in that the following steps are included:
1) preparation of construction
A, unwrapping wire is measured to ventilating shaft first, measures absolute altitude, the length and width of ventilating shaft, carries out review measurement, and survey
The verticality for measuring each side of ventilating shaft, is checked with design requirement, flat with drilling machine drill to the side exceeded, it is ensured that each side
Angle between face is matched with design requirement；
B, leveling processing then is carried out to the bottom surface of ventilating shaft and each side, removes stone exposed on bottom surface and side,
It is smoothed out with mortar, mortar levelling is used to the rough position in bottom surface or side, then with rammer compacter to the bottom surface and side of ventilating shaft
Face carries out compacting processing, is compacted the clay of bottom surface or side；
C, then set up scaffold in ventilating shaft, and the bottom surface of scaffold and ventilating shaft be fixedly connected, scaffold with
Spacing between each side of ventilating shaft is greater than 1m；
2) construction of waterproof layer
A, first according to the suitable splash guard of the selection of dimension of ventilating shaft, holdfast is equidistantly installed at the back side of splash guard,
Each side of ventilating shaft from left to right, successively splice splash guard from the bottom up, by the holdfast insertion ventilating shaft side on splash guard
In soil layer, it is bonded splash guard completely with the side of ventilating shaft；
B, then splash guard is cleaned out, the lap joint on splash guard is staggeredly arranged with construction joint, the distance being staggered
Not less than 20cm, double slit welding is carried out using hot weld by bonding machine, the lap of splice between two splash guards is not less than
20cm, when welding, weld from top to bottom；
C, geotechnological non-woven fabrics bed course then is laid in the front of splash guard, geotechnological non-woven fabrics is fixed on waterproof with support bar
On plate, on the splash guard of side and bottom water-swellable item is installed respectively and is sealed；
D, finally to guiding gutter is opened up on the bottom surface of ventilating shaft, drainpipe, and layer overlay geotechnique's nothing are installed in guiding gutter
Woven fabric, then be backfilling and compacted with clay；
3) one layer of side plate supporting
After to construction of waterproof layer, according to the corresponding side plate of the selection of dimension of ventilating shaft side, by hoisting machine by side plate
Be hoisted to the respective side of ventilating shaft, side plate be fixedly connected on corresponding support bar by screw, make side plate and splash guard it
Between be completely embedded, when laying one layer of side plate, sequence from the bottom up, from left to right is laid, and guarantees that left and right is adjacent, neighbouring
Two sides side plate between spacing be less than 1cm；
4) steel reinforcement cage is laid
A, the main reinforcement and girder rib for choosing design requirement according to the lateral dimension of ventilating shaft first, pass through the company of straight screw sleeve
It connects mode to be attached main reinforcement, and equidistantly intersects between two neighboring main reinforcement and lay girder rib, girder rib is passed through into weldering
It connects and is fixedly connected with main reinforcement, be spliced into required steel reinforcement cage；
B, hoisting point position is then determined on steel reinforcement cage, and the safety of hanging ring and suspender is checked, and passes through welding
Hanging ring is mounted on hoisting point position, while spacer pad being installed respectively in the bottom of steel reinforcement cage and front and rear sides, every layer is laid 5
~6 pieces；
C, then the steel reinforcement cage that splicing is completed is lifted to ventilating shaft in order by suspender, by each steel reinforcement cage close to phase
The ventilating shaft side answered, the bottom surface of the bottom and ventilating shaft that make steel reinforcement cage are fixedly connected, the trailing flank of steel reinforcement cage and one layer of side plate
It is fixedly connected, after four steel reinforcement cages are fixed in a ring round ventilating shaft medial surface, will be carried out between two neighboring steel reinforcement cage
It is welded and fixed, and hole needed for reserving shield-tunneling construction area, sealing plate is installed in the position of reserving hole；
5) two layers of side plate supporting
After to steel reinforcement cage construction, corresponding side plate is chosen according to the spacing between opposite two steel reinforcement cages, by hanging
Side plate is hoisted to the respective side of ventilating shaft by installation, and side plate is fixedly connected on corresponding steel reinforcement cage by screw, makes side plate
It is completely embedded between steel reinforcement cage, the sequence when laying two layers of side plate from the bottom up, from left to right is laid, and guarantees left and right phase
Spacing between adjacent, neighbouring two sides side plate is less than 1cm, adjacent side plate is connected and sealed, to two layers of side plate branch
After the completion of shield, scaffold is removed, and to clearing up in ventilating shaft；
6) bracing means is constructed
A, appropriate number of supporting mechanism is chosen according to the depth of ventilating shaft first, supporting mechanism is uniformly folded from the bottom up
Add, the supporting mechanism positioned at bottom carry out along the inside corner of ventilating shaft it is uniformly distributed, make supporting mechanism and side wall corner it
Between spacing be greater than 30cm, while guaranteeing each supporting mechanism keeping parallelism；
B, after all installation is fixed after the supporting mechanism of bottom design, the two neighboring supporting mechanism of right angle is passed through into company
Linkage is fixed, and is respectively mounted side wall reinforcement block at the both ends of link mechanism, and side wall reinforcement block is made to resist corresponding side
The supporting mechanism of side plate, two neighboring right angle is fixedly connected also by link mechanism, two adjacent connecting rod machines of left and right
Structure is interspersed up and down；
C, rotating mechanism is then socketed at the center of supporting mechanism, when left and right, two adjacent side plates are obliquely installed,
First support bar is installed between two adjacent rotating mechanisms of left and right, by first support bar by the support of different obliquities
Mechanism is fixedly connected, while installing side wall reinforcement block by fixed link on rotating mechanism, makes side wall reinforcement block and corresponding
Side plate vertically connected；
D, after to the bracing means installation of bottom, second layer support is fixedly mounted in the corresponding supporting mechanism top of bottom
Mechanism is located at the supporting mechanism of second layer supporting mechanism and bottom on same vertical line, complete to the supporting mechanism on the second layer
After portion's installation is fixed, the two neighboring supporting mechanism of right angle is fixed by link mechanism, and the two of link mechanism
End is respectively mounted side wall reinforcement block, and side wall reinforcement block is made to resist the side plate of corresponding side, the supporting mechanism of two neighboring right angle
It is fixedly connected by link mechanism, two adjacent link mechanisms of left and right are interspersed up and down；
E, rotating mechanism is then socketed at the center of supporting mechanism, when left and right, two adjacent side plates are obliquely installed,
First support bar is installed between two adjacent rotating mechanisms of left and right, by first support bar by the support of different obliquities
Mechanism is fixedly connected, while installing side wall reinforcement block by fixed link on rotating mechanism, makes side wall reinforcement block and corresponding
Side plate vertically connected；
F, successively remaining bracing means is installed by above-mentioned construction procedure；
7) concrete construction
After the installation is completed to bracing means, selecting grade is the concrete of C40, and seepage-resistant grade P12 stirs concrete
Concrete continuous is injected between one layer of side plate and two layers of side plate by diversion trench after uniformly, is put into casting and shocks stick, shaken
Tamper is equidistantly placed along each side of ventilating shaft, is made to shock stick and is located at bottom, is started while continuous concrete placing
Stick is shocked, after concrete is completely covered and shocks stick, stick is each shocked and vibrates 20~30 seconds, and uniformly it is lifted up 40~
60cm continues to vibrate 20~30 seconds, then is lifted up 40~60cm, until the concrete shake between one layer of side plate and two layers of side plate
It smashes and finishes；
8) final acceptance of construction
After to concrete construction, place is cleared up, when link mechanism or first support bar influence shield-tunneling construction
When, the only link mechanism or first support bar when need to remove shield-tunneling construction in perpendicular circumference range, and to entirely applying
Work carries out an acceptance inspection.
The reinforced construction method is able to satisfy the ultra-deep ventilating shaft strengthening construction of different depth, substantially increases the use peace of ventilating shaft
Quan Xing prevents the time from having grown and causes to collapse, and construction procedure is simple and convenient, more preferable compared to existing ventilating shaft consolidation effect, reduces shield
Influence when structure is constructed to ventilating shaft entirety.
Further, the supporting mechanism in step 6) includes column, and the top and bottom end of column are symmetrically arranged with supporting block, is stood
The first pilot hole and the second pilot hole are provided on the side of column, the first pilot hole is mutually perpendicular to the second pilot hole, whirler
Structure is located at the center of column, by the design of supporting block, not only increases the bonding strength between column and ventilating shaft bottom surface, and
And connection stability and reliability between two supporting mechanisms up and down is improved, support strength is further increased, ventilating shaft is improved
Consolidation effect, the first pilot hole and the second pilot hole can be used for positioning linkage rod mechanism, improve two neighboring supporting mechanism it
Between the stability that connects.
Further, supporting block is hemispherical, and there are two location hole and two limited posts, positioning for setting on the top surface of supporting block
Hole and limited post are in distributed rectangular, and two location holes, two limited posts are diagonally arranged respectively, limited post and location hole phase
To match, limit hole is provided on limited post, first through hole is provided on the side of supporting block, first through hole matches with limit hole,
First through hole and limit hole are passed through by fastening bolt, realizes being fixedly connected for upper and lower two supporting blocks, hemispheric supporting block
Design not only increases the intensity of supporting block, and can effectively carry out bearing distribution, improves stability when connection, location hole
With the design of limited post, bonding strength and stability between neighbouring two supporting mechanisms can be improved, fastening bolt is just
In installing and dismounting, the Fast Installation or disassembly between two supporting mechanisms up and down are realized.
Further, the link mechanism in step 6) includes second support bar, third support rod and joining rod, the second support
Bar, third support rod match with the first pilot hole and the second pilot hole, and joining rod is located at second support bar and third support
Between bar, second support bar connects joining rod by position-limit mechanism, and the other end of joining rod is provided with threaded post, third support rod
One end be provided with internal screw thread, threaded post matches with internal screw thread, and the first pilot hole, the second pilot hole can be respectively to second
Strut and third support rod are positioned, the spacing between the adjustable second support bar of joining rod and third support rod, are met
The side wall support of different length, joining rod are rotatably connected on the end of second support bar by position-limit mechanism, improve length adjustment
When flexibility, the spacing between threaded post and the adjustable joining rod of internal screw thread and third support rod, so meet support when
Fine tuning.
Further, position-limit mechanism includes T-shaped block and T-slot, and T-shaped block is fixedly connected on the end face center of second support bar
Place, T-slot are located at the end face center of joining rod, and T-shaped block matches with T-slot, and the side of T-shaped block resists T shape by ball
The design of the medial surface of slot, T-shaped block and T-slot not only increases the bonding strength between second support bar and joining rod, and
Joining rod may be implemented by ball to rotate around the end of second support bar, reduce frictional force, reduce abrasion, extend limit
The service life of mechanism.
Further, the side wall reinforcement block in step 6) includes arc-shaped cover and sleeve, and sleeve is fixedly connected on the interior of arc-shaped cover
At portion center, be evenly arranged with stiffening plate between sleeve and arc-shaped cover, the design of arc-shaped cover not only increase side wall reinforcement block with
Contact area between two layers of side plate, and the support strength of side wall reinforcement block is improved, sleeve can play the role of positioning,
Stiffening plate improves the intensity connected between sleeve and arc-shaped cover, improves the stability of strutting system of entire side wall reinforcement block.
Further, the rotating mechanism in step 6) includes cylinder, and the upper and lower ends of cylinder are symmetrically arranged with annular slab, annular
It is evenly arranged with the second through-hole in the outside circumference of plate, annular groove, upper and lower two annulars are provided between annular slab and cylinder
There are three guide plates, guide plate to pass through the second through-hole by lock-screw and be fixed on cylinder for mobile connection between slot, and cylinder is solid
Surely it is connected on column, plays the role of support positioning, guide plate can be not only used for connection first support bar, and can connect
Side wall reinforcement block is connect, the support on different inclined-planes is met, after guide plate is moved to setting position, passes through second by lock-screw
Through-hole realizes that guide plate is fixed in a ring groove.
Further, threaded hole is provided at the center of the guide plate in step 6), the two sides up and down of guide plate are symmetrical arranged
There is arc conducting bar, arc conducting bar matches with annular groove, and wear plate is provided on arc conducting bar, and the design of arc conducting bar can mention
Stability when high guide plate is mobile, while positioning can be played the role of when fixed, lock-screw can be improved in wear plate
Reliability when connection.
The present invention is by adopting the above-described technical solution, have the advantages that
1, the reinforced construction method is able to satisfy the ultra-deep ventilating shaft strengthening construction of different depth, substantially increases the use of ventilating shaft
Safety prevents the time from having grown and causes to collapse, and construction procedure is simple and convenient, more preferable compared to existing ventilating shaft consolidation effect, reduces
To the influence of ventilating shaft entirety when shield-tunneling construction.
2, by the design of supporting block, the bonding strength between column and ventilating shaft bottom surface is not only increased, and is improved
Connection stability and reliability between upper and lower two supporting mechanisms, further increases support strength, improves the reinforcing effect of ventilating shaft
Fruit, the first pilot hole and the second pilot hole can be used for positioning linkage rod mechanism, improves and connects between two neighboring supporting mechanism
Stability.
3, the first pilot hole, the second pilot hole can respectively position second support bar and third support rod, linking
Spacing between the adjustable second support bar of bar and third support rod, meets the side wall support of different length, and joining rod passes through
Position-limit mechanism is rotatably connected on the end of second support bar, improves flexibility when length adjustment, and threaded post and internal screw thread can be with
The spacing between joining rod and third support rod is adjusted, and then meets fine tuning when support.
4, cylinder is fixedly connected on column, plays the role of support positioning, and guide plate can be not only used for connection first
Support rod, and can connect side wall reinforcement block, meet the support on different inclined-planes, after guide plate is moved to setting position, leads to
Lock-screw is crossed across the second through-hole, realizes that guide plate is fixed in a ring groove.
Detailed description of the invention
The present invention will be further explained below with reference to the attached drawings:
Fig. 1 is the structural schematic diagram of bracing means in a kind of control ultra-deep ventilating shaft strengthening control construction method of the present invention；
Fig. 2 is the connection schematic diagram in the present invention between rotating mechanism and supporting mechanism；
Fig. 3 is the connection schematic diagram in the present invention between upper and lower two supporting mechanisms；
Fig. 4 is the structural schematic diagram of link mechanism in the present invention；
Fig. 5 is the partial enlarged view in Fig. 4 at I；
Fig. 6 is the structural schematic diagram of rotating mechanism in the present invention；
Fig. 7 is the structural schematic diagram of guide plate in the present invention；
Fig. 8 is the structural schematic diagram of side wall reinforcement block in the present invention.
In figure: 1- supporting mechanism；2- link mechanism；3- side wall reinforcement block；4- first support bar；5- column；6- whirler
Structure；The first pilot hole of 7-；The second pilot hole of 8-；9- supporting block；10- location hole；11- first through hole；12- limited post；13- limit
Hole；14- fastening bolt；15- second support bar；16- third support rod；17- joining rod；18- threaded post；19-T shape block；20-T
Shape slot；21- ball；22- annular slab；The second through-hole of 23-；24- annular groove；25- guide plate；26- lock-screw；27- arc is led
Item；28- threaded hole；29- wear plate；30- sleeve；31- stiffening plate；32- arc-shaped cover；33- cylinder.
Specific embodiment
A kind of control ultra-deep ventilating shaft strengthening control construction method of the present invention, comprising the following steps:
1) preparation of construction
A, unwrapping wire is measured to ventilating shaft first, measures absolute altitude, the length and width of ventilating shaft, carries out review measurement, and survey
The verticality for measuring each side of ventilating shaft, is checked with design requirement, flat with drilling machine drill to the side exceeded, it is ensured that each side
Angle between face is matched with design requirement；
B, leveling processing then is carried out to the bottom surface of ventilating shaft and each side, removes stone exposed on bottom surface and side,
It is smoothed out with mortar, mortar levelling is used to the rough position in bottom surface or side, then with rammer compacter to the bottom surface and side of ventilating shaft
Face carries out compacting processing, is compacted the clay of bottom surface or side；
C, then set up scaffold in ventilating shaft, and the bottom surface of scaffold and ventilating shaft be fixedly connected, scaffold with
Spacing between each side of ventilating shaft is greater than 1m；
2) construction of waterproof layer
A, first according to the suitable splash guard of the selection of dimension of ventilating shaft, holdfast is equidistantly installed at the back side of splash guard,
Each side of ventilating shaft from left to right, successively splice splash guard from the bottom up, by the holdfast insertion ventilating shaft side on splash guard
In soil layer, it is bonded splash guard completely with the side of ventilating shaft；
B, then splash guard is cleaned out, the lap joint on splash guard is staggeredly arranged with construction joint, the distance being staggered
Not less than 20cm, double slit welding is carried out using hot weld by bonding machine, the lap of splice between two splash guards is not less than
20cm, when welding, weld from top to bottom；
C, geotechnological non-woven fabrics bed course then is laid in the front of splash guard, geotechnological non-woven fabrics is fixed on waterproof with support bar
On plate, on the splash guard of side and bottom water-swellable item is installed respectively and is sealed；
D, finally to guiding gutter is opened up on the bottom surface of ventilating shaft, drainpipe, and layer overlay geotechnique's nothing are installed in guiding gutter
Woven fabric, then be backfilling and compacted with clay；
3) one layer of side plate supporting
After to construction of waterproof layer, according to the corresponding side plate of the selection of dimension of ventilating shaft side, by hoisting machine by side plate
Be hoisted to the respective side of ventilating shaft, side plate be fixedly connected on corresponding support bar by screw, make side plate and splash guard it
Between be completely embedded, when laying one layer of side plate, sequence from the bottom up, from left to right is laid, and guarantees that left and right is adjacent, neighbouring
Two sides side plate between spacing be less than 1cm；
4) steel reinforcement cage is laid
A, the main reinforcement and girder rib for choosing design requirement according to the lateral dimension of ventilating shaft first, pass through the company of straight screw sleeve
It connects mode to be attached main reinforcement, and equidistantly intersects between two neighboring main reinforcement and lay girder rib, girder rib is passed through into weldering
It connects and is fixedly connected with main reinforcement, be spliced into required steel reinforcement cage, the tolerance of steel reinforcement cage is as shown in table 1；
B, hoisting point position is then determined on steel reinforcement cage, and the safety of hanging ring and suspender is checked, and passes through welding
Hanging ring is mounted on hoisting point position, while spacer pad being installed respectively in the bottom of steel reinforcement cage and front and rear sides, every layer is laid 5
~6 pieces；
C, then the steel reinforcement cage that splicing is completed is lifted to ventilating shaft in order by suspender, by each steel reinforcement cage close to phase
The ventilating shaft side answered, the bottom surface of the bottom and ventilating shaft that make steel reinforcement cage are fixedly connected, the trailing flank of steel reinforcement cage and one layer of side plate
It is fixedly connected, after four steel reinforcement cages are fixed in a ring round ventilating shaft medial surface, will be carried out between two neighboring steel reinforcement cage
It is welded and fixed, and hole needed for reserving shield-tunneling construction area, sealing plate is installed in the position of reserving hole；
The tolerance of 1 steel reinforcement cage of table
5) two layers of side plate supporting
After to steel reinforcement cage construction, corresponding side plate is chosen according to the spacing between opposite two steel reinforcement cages, by hanging
Side plate is hoisted to the respective side of ventilating shaft by installation, and side plate is fixedly connected on corresponding steel reinforcement cage by screw, makes side plate
It is completely embedded between steel reinforcement cage, the sequence when laying two layers of side plate from the bottom up, from left to right is laid, and guarantees left and right phase
Spacing between adjacent, neighbouring two sides side plate is less than 1cm, adjacent side plate is connected and sealed, to two layers of side plate branch
After the completion of shield, scaffold is removed, and to clearing up in ventilating shaft；
6) bracing means is constructed
A, appropriate number of supporting mechanism 1 is chosen according to the depth of ventilating shaft first, supporting mechanism 1 is uniformly folded from the bottom up
Add, the supporting mechanism 1 positioned at bottom is uniformly distributed along the inside corner progress of ventilating shaft, makes supporting mechanism 1 and side wall corner
Between spacing be greater than 30cm, while guaranteeing each 1 keeping parallelism of supporting mechanism；
B, after after the supporting mechanism 1 of bottom design, all installation is fixed, the two neighboring supporting mechanism 1 of right angle is passed through
Link mechanism 2 is fixed, and is respectively mounted side wall reinforcement block 3 at the both ends of link mechanism 2, resists side wall reinforcement block 3 accordingly
The supporting mechanism 1 of the side plate of side, two neighboring right angle is fixedly connected also by link mechanism 2, left and right it is adjacent two
A about 2 link mechanism is interspersed；
C, rotating mechanism 6 is then socketed at the center of supporting mechanism 1, two adjacent side plates are obliquely installed when left and right
When, first support bar 4 is installed between two adjacent rotating mechanisms 6 of left and right, by first support bar 4 by different obliquities
Supporting mechanism 1 be fixedly connected, while on rotating mechanism 6 by fixed link install side wall reinforcement block 3, reinforce side wall
Block 3 is vertical with corresponding side plate to be connected；
D, after to the bracing means installation of bottom, second layer branch is fixedly mounted in corresponding 1 top of supporting mechanism of bottom
Support mechanism 1 is located at second layer supporting mechanism 1 and the supporting mechanism 1 of bottom on same vertical line, to the support machine on the second layer
After the whole installations of structure 1 are fixed, the two neighboring supporting mechanism 1 of right angle is fixed by link mechanism 2, and in connecting rod machine
The both ends of structure 2 are respectively mounted side wall reinforcement block 3, and side wall reinforcement block 3 is made to resist the side plate of corresponding side, the branch of two neighboring right angle
Support mechanism 1 is fixedly connected also by link mechanism 2, and about 2 adjacent two link mechanisms of left and right are interspersed；
E, rotating mechanism 6 is then socketed at the center of supporting mechanism 1, two adjacent side plates are obliquely installed when left and right
When, first support bar 4 is installed between two adjacent rotating mechanisms 6 of left and right, by first support bar 4 by different obliquities
Supporting mechanism 1 be fixedly connected, while on rotating mechanism 6 by fixed link install side wall reinforcement block 3, reinforce side wall
Block 3 is vertical with corresponding side plate to be connected；
F, successively remaining bracing means is installed by above-mentioned construction procedure；
As shown in Figures 1 to 8, supporting mechanism 1 includes column 5, and the top and bottom end of column 5 are symmetrically arranged with supporting block 9,
The first pilot hole 7 and the second pilot hole 8 are provided on the side of column 5, the first pilot hole 7 is mutually perpendicular to the second pilot hole 8,
Rotating mechanism 6 is located at the center of column 5, by the design of supporting block 9, not only increases between column 5 and ventilating shaft bottom surface
Bonding strength, and connection stability and reliability between two supporting mechanisms 1 up and down is improved, it is strong to further increase support
Degree improves the consolidation effect of ventilating shaft, and the first pilot hole 7 and the second pilot hole 8 can be used for positioning linkage rod mechanism 2, improves adjacent
The stability connected between two supporting mechanisms 1.
Supporting block 9 is hemispherical, and there are two location hole 10 and two limited posts 12, positioning for setting on the top surface of supporting block 9
Hole 10 and limited post 12 are in distributed rectangular, and the diagonal setting respectively of two location holes, 10, two limited posts 12, limited post 12 and fixed
Position hole 10 matches, and limit hole 13 is provided on limited post 12, and first through hole 11 is provided on the side of supporting block 9, and first is logical
Hole 11 matches with limit hole 13, passes through first through hole 11 and limit hole 13 by fastening bolt 14, realizes two supports up and down
Block 9 is fixedly connected, and hemispheric supporting block 9 designs the intensity for not only increasing supporting block 9, and can effectively carry out stress
Distribution, improves stability when connection, and neighbouring two supporting mechanisms can be improved in the design of location hole 10 and limited post 12
Bonding strength and stability between 1, fastening bolt 14 are easily installed disassembly, realize fast between two supporting mechanisms 1 up and down
Speed installation or removal.
Link mechanism 2 includes second support bar 15, third support rod 16 and joining rod 17, second support bar 15, third branch
Strut 16 matches with the first pilot hole 7 and the second pilot hole 8, and joining rod 17 is located at second support bar 15 and third support rod
Between 16, second support bar 15 connects joining rod 17 by position-limit mechanism, and the other end of joining rod 17 is provided with threaded post 18, the
One end of three support rods 16 is provided with internal screw thread, and threaded post 18 matches with internal screw thread, and the first pilot hole 7, the second pilot hole 8 can
To be positioned respectively to second support bar 15 and third support rod 16, the adjustable second support bar 15 of joining rod 17 and third
Spacing between support rod 16, meets the side wall support of different length, and joining rod 17 is rotatably connected on second by position-limit mechanism
Flexibility when length adjustment, threaded post 18 and the adjustable joining rod 17 of internal screw thread and third are improved in the end of support rod 15
Spacing between support rod 16, and then meet fine tuning when support.
Position-limit mechanism includes T-shaped block 19 and T-slot 20, and T-shaped block 19 is fixedly connected on the end face center of second support bar 15
Place, T-slot 20 are located at the end face center of joining rod 17, and T-shaped block 19 matches with T-slot 20, and the side of T-shaped block 19 passes through rolling
Pearl 21 resists the medial surface of T-slot 20, and the design of T-shaped block 19 and T-slot 20 not only increases second support bar 15 and joining rod
Bonding strength between 17, and joining rod 17 may be implemented by ball 21 and rotated around the end of second support bar 15, subtract
Small frictional force reduces abrasion, extends the service life of position-limit mechanism.
Side wall reinforcement block 3 includes arc-shaped cover 32 and sleeve 30, and sleeve 30 is fixedly connected at the inside center of arc-shaped cover 32,
Be evenly arranged with stiffening plate 31 between sleeve 30 and arc-shaped cover 32, the design of arc-shaped cover 32 not only increase side wall reinforcement block 3 with
Contact area between two layers of side plate, and the support strength of side wall reinforcement block 3 is improved, sleeve 30 can play the work of positioning
With stiffening plate 31 improves the intensity connected between sleeve 30 and arc-shaped cover 32, improves the supporting & stablizing of entire side wall reinforcement block 3
Property.
Rotating mechanism 6 includes cylinder 33, and the upper and lower ends of cylinder 33 are symmetrically arranged with annular slab 22, the outer circle of annular slab 22
It is evenly arranged with the second through-hole 23 on all sides, annular groove 24, upper and lower two annulars are provided between annular slab 22 and cylinder 33
There are three guide plates 25, guide plate 25 to pass through the second through-hole 23 by lock-screw 26 and be fixed on cylinder for mobile connection between slot 24
On 33, cylinder 33 is fixedly connected on column 5, plays the role of support positioning, and guide plate 25 can be not only used for connection first
Support rod 4, and can connect side wall reinforcement block 3, meet the support on different inclined-planes, when guide plate 25 is moved to setting position
Afterwards, the second through-hole 23 is passed through by lock-screw 26, realizes that guide plate 25 is fixed in annular groove 24.
Threaded hole 28 is provided at the center of guide plate 25, the two sides up and down of guide plate 25 are symmetrically arranged with arc conducting bar
27, arc conducting bar 27 matches with annular groove 24, is provided with wear plate 29 on arc conducting bar 27, and the design of arc conducting bar 27 can be with
The stability when movement of guide plate 25 is improved, while positioning can be played the role of when fixed, lock can be improved in wear plate 29
Reliability when tight screw 26 connects.
7) concrete construction
After the installation is completed to bracing means, selecting grade is the concrete of C40, and seepage-resistant grade P12 stirs concrete
Concrete continuous is injected between one layer of side plate and two layers of side plate by diversion trench after uniformly, is put into casting and shocks stick, shaken
Tamper is equidistantly placed along each side of ventilating shaft, is made to shock stick and is located at bottom, is started while continuous concrete placing
Stick is shocked, after concrete is completely covered and shocks stick, stick is each shocked and vibrates 20~30 seconds, and uniformly it is lifted up 40~
60cm continues to vibrate 20~30 seconds, then is lifted up 40~60cm, until the concrete shake between one layer of side plate and two layers of side plate
It smashes and finishes；
8) final acceptance of construction
After to concrete construction, place is cleared up, when link mechanism 2 or first support bar 4 influence shield and apply
Working hour, link mechanism 2 or first support bar 4 when only need to remove shield-tunneling construction in perpendicular circumference range, and to whole
A construction carries out an acceptance inspection.
The reinforced construction method is able to satisfy the ultra-deep ventilating shaft strengthening construction of different depth, substantially increases the use peace of ventilating shaft
Quan Xing prevents the time from having grown and causes to collapse, and construction procedure is simple and convenient, more preferable compared to existing ventilating shaft consolidation effect, reduces shield
Influence when structure is constructed to ventilating shaft entirety.
The above is only specific embodiments of the present invention, but technical characteristic of the invention is not limited thereto.It is any with this hair
Based on bright, to realize essentially identical technical effect, made ground simple change, equivalent replacement or modification etc. are all covered
Among protection scope of the present invention.
Claims (8)
1. a kind of control ultra-deep ventilating shaft strengthening control construction method, it is characterised in that the following steps are included:
1) preparation of construction
A, unwrapping wire is measured to ventilating shaft first, measures absolute altitude, the length and width of ventilating shaft, carries out review measurement, and measure wind
The verticality of each side of well, is checked with design requirement, flat with drilling machine drill to the side that exceeds, it is ensured that each side it
Between angle matched with design requirement；
B, leveling processing then is carried out to the bottom surface of ventilating shaft and each side, removes stone exposed on bottom surface and side, uses sand
Slurry smoothes out, and uses mortar levelling to the rough position in bottom surface or side, then with rammer compacter to the bottom surface of ventilating shaft and side into
Row compacting processing, is compacted the clay of bottom surface or side；
C, scaffold is then set up in ventilating shaft, and the bottom surface of scaffold and ventilating shaft is fixedly connected, scaffold and ventilating shaft
Each side between spacing be greater than 1m；
2) construction of waterproof layer
A, first according to the suitable splash guard of the selection of dimension of ventilating shaft, holdfast is equidistantly installed at the back side of splash guard, in ventilating shaft
Each side from left to right, successively splice splash guard from the bottom up, by splash guard holdfast insertion ventilating shaft side soil layer
It is interior, it is bonded splash guard completely with the side of ventilating shaft；
B, then splash guard is cleaned out, the lap joint on splash guard is staggeredly arranged with construction joint, the distance being staggered is not small
In 20cm, double slit welding is carried out using hot weld by bonding machine, the lap of splice between two splash guards is not less than 20cm, weldering
It is welded from top to bottom when connecing；
C, geotechnological non-woven fabrics bed course then is laid in the front of splash guard, geotechnological non-woven fabrics is fixed on splash guard with support bar
On, on the splash guard of side and bottom water-swellable item is installed respectively and is sealed；
D, finally to guiding gutter is opened up on the bottom surface of ventilating shaft, drainpipe, and layer overlay geotechnique's non-woven fabrics are installed in guiding gutter,
It is backfilling and compacted again with clay；
3) one layer of side plate supporting
After to construction of waterproof layer, according to the corresponding side plate of the selection of dimension of ventilating shaft side, by hoisting machine by side plate handling
To the respective side of ventilating shaft, side plate is fixedly connected on corresponding support bar by screw, makes to connect between side plate and splash guard
Connect close, the sequence when laying one layer of side plate from the bottom up, from left to right is laid, guarantee left and right it is adjacent, neighbouring two
Spacing between the side plate of side is less than 1cm；
4) steel reinforcement cage is laid
A, the main reinforcement and girder rib for choosing design requirement according to the lateral dimension of ventilating shaft first, pass through the connection side of straight screw sleeve
Main reinforcement is attached by formula, and between two neighboring main reinforcement equidistantly intersect lay girder rib, by girder rib by welding with
Main reinforcement is fixedly connected, and is spliced into required steel reinforcement cage；
B, hoisting point position is then determined on steel reinforcement cage, and the safety of hanging ring and suspender is checked, and will be hung by welding
Ring is mounted on hoisting point position, while installing spacer pad respectively in the bottom of steel reinforcement cage and front and rear sides, and every layer is laid 5~6
Block；
C, then the steel reinforcement cage that splicing is completed is lifted to ventilating shaft in order by suspender, by each steel reinforcement cage close to corresponding
The bottom surface of ventilating shaft side, the bottom and ventilating shaft that make steel reinforcement cage is fixedly connected, and the trailing flank of steel reinforcement cage is carried out with one layer of side plate
It is fixedly connected, after four steel reinforcement cages are fixed in a ring round ventilating shaft medial surface, will be welded between two neighboring steel reinforcement cage
It is fixed, and hole needed for reserving shield-tunneling construction area, sealing plate is installed in the position of reserving hole；
5) two layers of side plate supporting
After to steel reinforcement cage construction, corresponding side plate is chosen according to the spacing between opposite two steel reinforcement cages, passes through hoisting machine
Side plate is hoisted to the respective side of ventilating shaft, side plate is fixedly connected on corresponding steel reinforcement cage by screw, makes side plate and steel
Be completely embedded between muscle cage, when laying two layers of side plate, sequence from the bottom up, from left to right is laid, guarantee left and right it is adjacent, on
Under spacing between adjacent two sides side plate be less than 1cm, adjacent side plate is connected and sealed, is completed to two layers of side plate supporting
Afterwards, scaffold is removed, and to clearing up in ventilating shaft；
6) bracing means is constructed
A, appropriate number of supporting mechanism is chosen according to the depth of ventilating shaft first, supporting mechanism is uniformly superimposed from the bottom up, position
Supporting mechanism in bottom is uniformly distributed along the inside corner progress of ventilating shaft, between making between supporting mechanism and side wall corner
Away from 30cm is greater than, while guaranteeing each supporting mechanism keeping parallelism；
B, after all installation is fixed after the supporting mechanism of bottom design, the two neighboring supporting mechanism of right angle is passed through into connecting rod machine
Structure is fixed, and is respectively mounted side wall reinforcement block at the both ends of link mechanism, and side wall reinforcement block is made to resist the side plate of corresponding side,
The supporting mechanism of two neighboring right angle is fixedly connected also by link mechanism, above and below two adjacent link mechanisms of left and right
It is interspersed；
C, rotating mechanism is then socketed at the center of supporting mechanism, when two adjacent side plates are obliquely installed when left and right, on a left side
First support bar is installed between right two adjacent rotating mechanisms, by first support bar by the supporting mechanism of different obliquities
It is fixedly connected, while side wall reinforcement block is installed by fixed link on rotating mechanism, make side wall reinforcement block and corresponding side
Plate is vertically connected；
D, after to the bracing means installation of bottom, the corresponding supporting mechanism top of bottom is fixedly mounted the second layer and supports machine
Structure is located at the supporting mechanism of second layer supporting mechanism and bottom on same vertical line, whole to the supporting mechanism on the second layer
After installation is fixed, the two neighboring supporting mechanism of right angle is fixed by link mechanism, and at the both ends of link mechanism
It is respectively mounted side wall reinforcement block, side wall reinforcement block is made to resist the side plate of corresponding side, the supporting mechanism of two neighboring right angle also leads to
It crosses link mechanism to be fixedly connected, two adjacent link mechanisms of left and right are interspersed up and down；
E, rotating mechanism is then socketed at the center of supporting mechanism, when two adjacent side plates are obliquely installed when left and right, on a left side
First support bar is installed between right two adjacent rotating mechanisms, by first support bar by the supporting mechanism of different obliquities
It is fixedly connected, while side wall reinforcement block is installed by fixed link on rotating mechanism, make side wall reinforcement block and corresponding side
Plate is vertically connected；
F, successively remaining bracing means is installed by above-mentioned construction procedure；
7) concrete construction
After the installation is completed to bracing means, selecting grade is the concrete of C40, and seepage-resistant grade P12 stirs evenly concrete
Concrete continuous is injected between one layer of side plate and two layers of side plate by diversion trench afterwards, is put into casting and shocks stick, shock stick
It is equidistantly placed along each side of ventilating shaft, makes to shock stick and be located at bottom, started while continuous concrete placing and shock
Stick each shocks stick and vibrates 20~30 seconds, and be uniformly lifted up 40~60cm after concrete is completely covered and shocks stick, after
It is continuous to vibrate 20~30 seconds, then it is lifted up 40~60cm, until the concrete between one layer of side plate and two layers of side plate is shocked and is finished；
8) final acceptance of construction
After to concrete construction, place is cleared up, when link mechanism or first support bar influence shield-tunneling construction, only
Link mechanism or first support bar when need to remove shield-tunneling construction in perpendicular circumference range, and entire construction is carried out
It checks and accepts.
2. a kind of control ultra-deep ventilating shaft strengthening control construction method according to claim 1, it is characterised in that: in step 6)
The supporting mechanism include column, the top and bottom end of the column are symmetrically arranged with supporting block, on the side of the column
It is provided with the first pilot hole and the second pilot hole, first pilot hole is mutually perpendicular to second pilot hole, the rotation
Mechanism is located at the center of the column.
3. a kind of control ultra-deep ventilating shaft strengthening control construction method according to claim 2, it is characterised in that: the support
Block is hemispherical, and setting is there are two location hole and two limited posts on the top surface of the supporting block, the location hole and the limit
Position column is in distributed rectangular, and the diagonal setting respectively of two location holes, two limited posts, the limited post with it is described fixed
Position hole matches, and limit hole is provided on the limited post, is provided with first through hole on the side of the supporting block, and described first
Through-hole matches with the limit hole, passes through the first through hole and the limit hole by fastening bolt, realizes two up and down
The supporting block is fixedly connected.
4. a kind of control ultra-deep ventilating shaft strengthening control construction method according to claim 2, it is characterised in that: in step 6)
The link mechanism include second support bar, third support rod and joining rod, the second support bar, the third support rod
Match with first pilot hole and second pilot hole, the joining rod is located at the second support bar and described
Between three support rods, the second support bar connects the joining rod, the other end setting of the joining rod by position-limit mechanism
There is threaded post, one end of the third support rod is provided with internal screw thread, and the threaded post matches with the internal screw thread.
5. a kind of control ultra-deep ventilating shaft strengthening control construction method according to claim 4, it is characterised in that: the limit
Mechanism includes T-shaped block and T-slot, and the T-shaped block is fixedly connected at the end face center of the second support bar, the T-slot
At the end face center of the joining rod, the T-shaped block matches with the T-slot, and the side of the T-shaped block passes through ball
Resist the medial surface of the T-slot.
6. a kind of control ultra-deep ventilating shaft strengthening control construction method according to claim 1, it is characterised in that: in step 6)
The side wall reinforcement block include arc-shaped cover and sleeve, the sleeve is fixedly connected at the inside center of the arc-shaped cover, institute
It states and is evenly arranged with stiffening plate between sleeve and the arc-shaped cover.
7. a kind of control ultra-deep ventilating shaft strengthening control construction method according to claim 1, it is characterised in that: in step 6)
The rotating mechanism include cylinder, the upper and lower ends of the cylinder are symmetrically arranged with annular slab, the excircle of the annular slab
It is evenly arranged with the second through-hole on side, annular groove, upper and lower two rings are provided between the annular slab and the cylinder
There are three guide plate, the guide plate is fixed on by lock-screw across second through-hole described mobile connection between shape slot
On cylinder.
8. a kind of control ultra-deep ventilating shaft strengthening control construction method according to claim 7, it is characterised in that: in step 6)
The guide plate center at be provided with threaded hole, the two sides up and down of the guide plate are symmetrically arranged with arc conducting bar, described
Arc conducting bar matches with the annular groove, is provided with wear plate on the arc conducting bar.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910213158.XA CN110030015B (en) | 2019-03-20 | 2019-03-20 | Reinforcing control construction method for controlling ultra-deep air shaft |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910213158.XA CN110030015B (en) | 2019-03-20 | 2019-03-20 | Reinforcing control construction method for controlling ultra-deep air shaft |
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| CN110030015B CN110030015B (en) | 2020-07-10 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5631926A (en) * | 1979-08-22 | 1981-03-31 | Kumagai Gumi Ltd | Water-stop protection for landslide |
| JP2000291147A (en) * | 1999-04-06 | 2000-10-17 | Takenaka Komuten Co Ltd | Dome roof construction method without timbering |
| CN201972711U (en) * | 2011-01-10 | 2011-09-14 | 上海陆家嘴金融贸易区联合发展有限公司 | Device for controlling deformation of near metro tunnel caused by super-deep foundation pit evacuation in soft soil areas |
| CN105332722A (en) * | 2015-11-29 | 2016-02-17 | 辽宁工程技术大学 | Coal mine rock burst timbering device |
-
2019
- 2019-03-20 CN CN201910213158.XA patent/CN110030015B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5631926A (en) * | 1979-08-22 | 1981-03-31 | Kumagai Gumi Ltd | Water-stop protection for landslide |
| JP2000291147A (en) * | 1999-04-06 | 2000-10-17 | Takenaka Komuten Co Ltd | Dome roof construction method without timbering |
| CN201972711U (en) * | 2011-01-10 | 2011-09-14 | 上海陆家嘴金融贸易区联合发展有限公司 | Device for controlling deformation of near metro tunnel caused by super-deep foundation pit evacuation in soft soil areas |
| CN105332722A (en) * | 2015-11-29 | 2016-02-17 | 辽宁工程技术大学 | Coal mine rock burst timbering device |
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| CN110030015B (en) | 2020-07-10 |
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