CN110273696A - A kind of tunnel or underground space claustra formula construction method - Google Patents
A kind of tunnel or underground space claustra formula construction method Download PDFInfo
- Publication number
- CN110273696A CN110273696A CN201910500495.7A CN201910500495A CN110273696A CN 110273696 A CN110273696 A CN 110273696A CN 201910500495 A CN201910500495 A CN 201910500495A CN 110273696 A CN110273696 A CN 110273696A
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- Prior art keywords
- tunnel
- steel pipe
- underground space
- support facility
- claustra
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- 238000010276 construction Methods 0.000 title claims abstract description 67
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 90
- 239000010959 steel Substances 0.000 claims abstract description 90
- 239000002689 soil Substances 0.000 claims abstract description 14
- 239000004567 concrete Substances 0.000 claims abstract description 13
- 230000002787 reinforcement Effects 0.000 claims abstract description 9
- 238000005266 casting Methods 0.000 claims abstract description 7
- 238000002271 resection Methods 0.000 claims abstract description 3
- 230000005641 tunneling Effects 0.000 claims abstract description 3
- 238000005520 cutting process Methods 0.000 claims description 7
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 238000011161 development Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 2
- 229910045601 alloy Inorganic materials 0.000 claims description 2
- 238000013461 design Methods 0.000 claims description 2
- 238000011017 operating method Methods 0.000 claims description 2
- 238000007363 ring formation reaction Methods 0.000 claims description 2
- 239000002023 wood Substances 0.000 claims description 2
- 229910001651 emery Inorganic materials 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 20
- 238000004062 sedimentation Methods 0.000 abstract description 2
- 230000008901 benefit Effects 0.000 description 6
- 238000009412 basement excavation Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000011218 segmentation Effects 0.000 description 4
- 230000018109 developmental process Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005662 electromechanics Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000011178 precast concrete Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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
- E21D11/003—Linings or provisions thereon, specially adapted for traffic tunnels, e.g. with built-in cleaning devices
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The present invention relates to the technical fields in a kind of tunnel or underground space construction, are a kind of tunnel or underground space claustra formula construction method specifically.Steel pipe is set using tunnel or underground space contour line inner edge as benchmark line;The soil body in steel pipe is dug out;Temporary support facility is installed in steel pipe;Longitudinal divisions cut off the steel plate of steel pipe adjacent edge, cut off a part of tunneling boring or section every time, and resection length 1-20m forms hollow gallery;Permanent support facility is installed in steel pipe, removes temporary support facility, the assembling reinforcement in gallery, casting concrete forms the main structure of tunnel or the underground space;The soil body removing in tunnel perhaps underground space contour line is finally formed into structurally stable tunnel or the underground space.This method be able to carry out an ultra shallow bury, big cross section, it is noiseless under wear construction, this method has the characteristics that main structure is firm, highly-safe, sedimentation is controllable, construction efficiency is high, at low cost.
Description
Technical field
The present invention relates to the technical fields more particularly to one kind of a kind of tunnel or underground space construction to be able to carry out an ultra shallow
It buries, the method for the safe and efficient construction of big cross section, is a kind of tunnel or underground space claustra formula construction method specifically.
Background technique
Traditional tunnel or underground space construction method is broadly divided into cut and cover method and subsurface excavation method, and cut and cover method is first by covering
It all digs out, then installation template, assembling reinforcement, casting concrete forms structures main structure, finally again will be outside structures
It encloses and is backfilled.Cut and cover method advantage be technically simple, quick, main structure stress condition preferably etc., the disadvantage is that needing to entire
Space is excavated, and to be backfilled after construction, and heavy workload, idle work is more, and efficiency is lower, and at easy pair of city construction
Existing road and other communal facilitys, which interfere and generate larger noise, to disturb residents, and influences the trip and normal life of resident.
Excavating construction method is mainly Mining Method and shield method, if Mining Method is that the biggish space of section is divided into cadre
Point, excavation supporting is then carried out in small space, then applies armored concrete permanent structure.Shield method is by shield shell
Prevent the collapsing in tunnel with section of jurisdiction bearing surrounding country rock, while cutting excavation carried out to section using mechanical cutterhead,
Then and assembled precast concrete section of jurisdiction, the method for forming tunnel structure.Shield method advantage is to be not take up ground space, to resident
Production and living interference it is small, the disadvantage is that construction section be limited to shield machine be not suitable for an ultra shallow bury, big cross section undercrossing tunnel, station,
The construction of the structures such as building.
With the continuous improvement of city development level, urban size constantly expands, and urban road is constantly widened, same with this
When, it is limited by the influence of existing railway station, railway line and other buildings, many major trunk roads become dead end highway, intersection
It has been blocked up at hinge into parking lot, there are many more pipeline, gallerys to pass through, and city is divided by railway line and other important structures
It is incoherent.
Well known to row insider, an ultra shallow is buried, big cross section, interference, low cost pass through railway station, railway line and building less
It also can not be achieved at present, individual cities are worn in such a way that extension wire reduces and excavates absolute altitude or shrink sector
More.But heavy grade caused by more cities cannot withstand high construction cost, and depth is passed through is brought to resident
Poor trip experience, can also cause more serious interference to existing line.The technology of such relationship urban development and the people's livelihood
It can not make a breakthrough all the time.
Summary of the invention
The present invention provide a kind of an ultra shallow bury, big cross section, few interference, low cost claustra formula construction method.This method passes through
Strong supporting, the preferential construction main structure of claustra formula segmentation, then removes the soil body in channel.This method is able to carry out an ultra shallow
Bury, big cross section, it is noiseless under wear construction, this method has that main structure is firm, highly-safe, sedimentation can control, construction efficiency
Feature high, at low cost.
The technical solution of the present invention is as follows:
A kind of tunnel or underground space claustra formula construction method, using tunnel or underground space contour line inner edge as benchmark line
Set steel pipe;The soil body in steel pipe is dug out;Temporary support facility is installed in steel pipe;Longitudinal divisions cut off steel pipe adjacent edge
Steel plate, cuts off a part of tunneling boring or section every time, and resection length 1-20m forms hollow gallery;It is installed in steel pipe
Permanent support facility, removes temporary support facility, the assembling reinforcement in gallery, it is empty that casting concrete forms tunnel or underground
Between main structure;Finally by tunnel perhaps underground space contour line the soil body removing formed structurally stable tunnel or
The underground space.
Further, tunnel of the invention or underground space claustra formula construction method, Detailed operating procedures are as follows:
(1) active well is built in tunnel or underground space both ends, needs to install movable type according to construction in active well and applies
Work platform;
(2) tunnel or underground space contour line are marked out in active well tunnel or underground space driving side, as steel pipe
The standard set;
(3) steel pipe is set using tunnel or underground space contour line inner edge as benchmark line, the steel pipe that sets need to use people
Work, shield machine or development machine set steel pipe along tunnel or underground space contour line, after setting, by the soil in steel pipe
Body is dug out, and steel pipe is hollow channel, there is lock or twisted linkage between adjacent steel pipe, and the steel pipe set has load-bearing, resistance
Water, template multi-functional;
(4) temporary support facility is installed in steel pipe, the temporary support facility structure is that bottom and top are steel plate,
Middle part is the structure that hydraulic or jack forms, and is moved easily and carries out supporting in time;
(5) in tunnel or the longitudinal direction of the underground space, longitudinal divisions cut off the steel plate of steel pipe adjacent edge, upper and lower tangent line
Distance be 0.3-2 meter, excision distance is 3-12 meter, forms lateral claustra, cuts off mode to use plasma, gas welding, grinding wheel
Cutting sheet or giant are cut;The steel plate for cutting off steel pipe adjacent edge is cut off in the steel pipe that supporting is completed, shape
At claustra formula cavity;
(6) permanent support facility is installed in claustra formula cavity, the diameter of the support facility is φ 30mm- φ
1000mm supports the material of facility to be made of the one or more of steel pipe, wood, concrete or alloy;The support facility it is upper
Portion is connect with steel pipe top plate, and lower part is connect with steel pipe bottom, forms permanent supporting construction;
(7) assembling reinforcement in claustra formula cavity is required according to tunnel or underground space main structure, is binding reinforcing bar
Claustra in segmentation casting concrete until closure cyclization, forms the main structure of tunnel or the underground space;According to main body knot
Structure force request is bound and is poured, and performance, size, the spacing of binding of reinforcing bar should meet Design of Main Structure requirement;
(8) after the completion of tunnel or underground space claustra formula main structure construction, the soil body in main structure is removed, then basis
Channel function construction affiliated facility and finishing, form tunnel or the underground space.
Further, in step (1), the active well is cuboid or cube structure.
Further, in step (3), the cross section of steel pipe is rectangle, circle, triangle, parallelogram, arc, ellipse
Circle obtains good result to ensure to construct.
Further, in step (3), when steel pipe is rectangular steel pipe, side length 0.3m-2m.
Further, in step (3), at the top of the rectangular steel pipe or bottom is equipped with mother-son mouth attachment device.
Further, in step (6), the material of permanent support facility is steel, concrete or its combination.
Further, in step (7), main structure with a thickness of 0.3-2m.
The beneficial effects of the present invention are,
In step (3), connected between adjacent rectangle steel pipe with mother-son mouth attachment device.Advantage is that connection is quick, and steel pipe is beaten
Set direction it is accurate and have preferably block water, waterproof action.
Temporary support facility in step (4), advantage are can to carry out necessary supporting in time according to external force structure, with
Prevent pipe deformation, it is ensured that construction worker's safety.
The steel plate between adjacent steel pipe is cut in segmentation in step (5), forms claustra, advantage is to be segmented main structure, small
It constructs in space, gib measure may be reused, and construction safety is controllable.
Step (6) installs permanent support facility in claustra, and advantage is to ensure that safety in work progress.Meanwhile it constructing
After reinforced concrete structure, suspension device and main structure combine together, strengthen the stability of main structure.
Construction method of the invention, using claustra formula section construction, section of constructing is small, especially in steel pipe internal cutting or
Supporting, has a uniform force, and supporting is stable, conveniently, the strong feature of supporting power.
First tunnel or underground space structures main structure construction, construction period Core Soil are completed using claustra formula method
Force structure is without modification, it is ensured that the stability of whole stress.Be widely used in an ultra shallow bury, the tunnel of big cross section, complicated geological
Road or underground space construction are tunnel or underground space construction method most revolutionary achievement over 60 years.
In short, claustra method main structure safe mass provided by the invention is controllable, construction technology is simple, and construction cost is low,
Can be used for an ultra shallow bury, the tunnel or underground space construction of big cross section, applicability is good.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, for those of ordinary skill in the art
Speech, without creative efforts, is also possible to obtain other drawings based on these drawings.
Process flow chart Fig. 1 of the invention.
Fig. 2 is the sectional view of claustra formula construction method of the present invention.
Fig. 3 is the structure front view of claustra formula construction method of the present invention.
Temporary support facility construction front view in Fig. 4 claustra formula construction method work progress claustra of the present invention.
Fig. 5 is that facility construction front view is permanently supported in claustra formula construction method work progress claustra of the present invention.
Fig. 6 is that claustra formula construction method construction of the present invention binds main structure reinforcing bar front view in claustra.
Fig. 7 is the front view that the soil body forms the underground space in claustra formula construction method construction and excavation structure of the present invention.
Fig. 8 is claustra formula construction method construction main structure perspective view of the present invention.
1- temporary support facility, 2- permanently support facility, 3- main structure.
Specific embodiment
Technical solution in order to enable those skilled in the art to better understand the present invention, below in conjunction with of the invention real
The attached drawing in example is applied, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without making creative work, all should belong to protection of the present invention
Range.
Taiyuan railway station engineering construction case is worn under 1 Taiyuan City's Yingze Street of embodiment
The present invention wears Taiyuan railway station engineering under Taiyuan City's Yingze Street and is constructed, and forms one and preferably implements
Example.
(1) construction working well is built in Taiyuan railway station east square and western square respectively, and active well is having a size of 20m*20m*
20m is mounted with mobile working platform in active well.
(2) mark channel profile line marked before construction, and to set the angle of steel pipe, profile is consolidated
Fixed, channel profile line inside dimensions are 20*5m.
(3) setting steel pipe is that small-sized shield machine top mode is used to set diameter as 2 meters of round steel pipe, surrounds contour line
Form a circle steel pipe.The round steel pipe thickness of pipe wall is 2CM, and adjacent steel pipe is closely tangent.
(4) installation temporary support facility is that request for utilization number is 201811399170.6 (this application is in 2019.2.22 public affairs
Open) patent application in record construction pipe suspension device structure, laid in round steel pipe, play temporary support work
With.
(5) cutting off adjacent steel pipe steel plate uses the technologies such as gas welding, electric welding, plasma cutting machine by the steel between adjacent steel pipe
Plate excision, forms and laterally returns formula gallery.Adjacent steel pipe arc is connected with steel plate after the adjacent steel pipe wall excision, is formed internal
Height is not less than 1.2 meters of claustra formula cavity.
(6) be mounted in steel pipe diameter be 20cm steel pipe, steel pipe spacing be 1 meter, be welded in top steel pipe arc with
Between the steel pipe arc of lower part, the supporting to top steel pipe is strengthened, becomes one of the permanent support facility structure in channel.
(7) assembling reinforcement, casting concrete in claustra formula cavity, it is φ that segmentation, which has bound main reinforcement, in claustra formula cavity
22 reinforcing bar, the HPB335 high performance steel that assistant reinforcement is φ 16, stirrup is φ 8, and C45 concrete has been poured, it forms complete
Main structure.
(8) after completing main structure using the construction of claustra formula construction method, the Core Soil in main structure is purged,
Then it requires to set bed course according to town road, builds the accessory structures objects such as ditch, channel is fitted up and electromechanics is installed set
Standby, means of transportation form the underground space.
Claims (8)
1. a kind of tunnel or underground space claustra formula construction method, beat using tunnel or underground space contour line inner edge as benchmark line
If steel pipe;The soil body in steel pipe is dug out;Temporary support facility is installed in steel pipe;The steel of longitudinal divisions excision steel pipe adjacent edge
Plate, cuts off a part of tunneling boring or section every time, and resection length 1-20m forms hollow gallery;It is installed forever in steel pipe
Long property supports facility, removes temporary support facility, the assembling reinforcement in gallery, and casting concrete forms tunnel or the underground space
Main structure;The soil body removing in tunnel perhaps underground space contour line is finally formed into structurally stable tunnel or ground
Down space.
2. tunnel according to claim 1 or underground space claustra formula construction method, which is characterized in that Detailed operating procedures
It is as follows:
(1) active well is built in tunnel or underground space both ends, mobile construction is installed according to needs of constructing in active well and is put down
Platform;
(2) tunnel or underground space contour line are marked out in active well tunnel or underground space driving side, is set as steel pipe
Standard;
(3) steel pipe is set using tunnel or underground space contour line inner edge as benchmark line, the steel pipe that sets need to be using artificial, shield
Structure machine or development machine set steel pipe along tunnel or underground space contour line, and after setting, the soil body in steel pipe is drawn
Out, steel pipe is hollow channel, has lock or twisted linkage, the steel pipe set to have load-bearing, block water, mould between adjacent steel pipe
Plate multi-functional;
(4) temporary support facility is installed in steel pipe, the temporary support facility structure is that bottom and top are steel plate, middle part
For the structure that hydraulic or jack forms, it is moved easily and carries out supporting in time;
(5) in tunnel or the longitudinal direction of the underground space, longitudinal divisions cut off the steel plate of steel pipe adjacent edge, upper and lower tangent line away from
From being 0.3-2 meters, excision distance is 3-12 meters, forms lateral claustra, and excision mode is to use plasma, gas welding, emery wheel cuts
Piece or giant are cut;The steel plate for cutting off steel pipe adjacent edge is to cut off in the steel pipe that supporting is completed, is formed back
Corridor formula cavity;
(6) permanent support facility is installed in claustra formula cavity, the diameter of the support facility is φ 30mm- φ 1000mm,
The material of support facility is made of the one or more of steel pipe, wood, concrete or alloy;The top of the support facility and steel pipe
Top plate connection, lower part are connect with steel pipe bottom, form permanent supporting construction;
(7) assembling reinforcement in claustra formula cavity is required according to tunnel or underground space main structure, is binding returning for reinforcing bar
Casting concrete is segmented in corridor until closure cyclization, forms the main structure of tunnel or the underground space;According to main structure by
Force request is bound and is poured, and performance, size, the spacing of binding of reinforcing bar should meet Design of Main Structure requirement;
(8) after the completion of tunnel or underground space claustra formula main structure construction, the soil body in main structure is removed, then according to channel
Function construction affiliated facility and finishing, form tunnel or the underground space.
3. tunnel according to claim 1 or underground space claustra formula construction method, which is characterized in that in step (1), institute
Stating active well is cuboid or cube structure.
4. tunnel according to claim 1 or underground space claustra formula construction method, which is characterized in that in step (3), steel
The cross section of pipe is rectangle, circle, triangle, parallelogram, arc, ellipse.
5. tunnel according to claim 1 or underground space claustra formula construction method, which is characterized in that in step (3), steel
When pipe is rectangular steel pipe, side length 0.3m-2m.
6. tunnel according to claim 5 or underground space claustra formula construction method, which is characterized in that in step (3), institute
It states at the top of rectangular steel pipe or bottom is equipped with mother-son mouth attachment device.
7. tunnel according to claim 1 or underground space claustra formula construction method, which is characterized in that in step (6), forever
The material of support facility is steel, concrete or its combination long.
8. road according to claim 1 or underground space claustra formula construction method, which is characterized in that in step (7), main body
Structure with a thickness of 0.3-2m.
Priority Applications (1)
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CN201910500495.7A CN110273696B (en) | 2019-06-11 | 2019-06-11 | Tunnel or underground space corridor type construction method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN201910500495.7A CN110273696B (en) | 2019-06-11 | 2019-06-11 | Tunnel or underground space corridor type construction method |
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CN110273696A true CN110273696A (en) | 2019-09-24 |
CN110273696B CN110273696B (en) | 2021-04-23 |
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Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20070076553A (en) * | 2007-02-26 | 2007-07-24 | 신일씨엔아이(주) | Construction method of underground structure using concrete filled pipe roof and concrete wall |
CN202064649U (en) * | 2011-05-14 | 2011-12-07 | 中国葛洲坝集团股份有限公司 | Telescopic top-form steel pipe support |
CN103485790A (en) * | 2013-10-11 | 2014-01-01 | 中交第二公路勘察设计研究院有限公司 | Shallow tunneling method for pipe-proof-supporting structure combined system |
CN105464675A (en) * | 2016-02-01 | 2016-04-06 | 北京首尔工程技术有限公司 | Novel surface contact pipe curtain structure and construction method thereof |
CN205225281U (en) * | 2015-12-14 | 2016-05-11 | 中建六局土木工程有限公司 | For a short time, it secretly digs section support construction structures than super shallow rectangle that buries to cover to stride |
CN206144569U (en) * | 2016-10-25 | 2017-05-03 | 中铁第四勘察设计院集团有限公司 | Confined is advance in advance and is protected tunnel structure |
CN108278116A (en) * | 2018-01-22 | 2018-07-13 | 东北大学 | A kind of Shallow Large Span pipe curtain support system and its construction method |
CN108930544A (en) * | 2018-07-27 | 2018-12-04 | 中铁十四局集团有限公司 | A kind of broken ground underground large space method of construction |
-
2019
- 2019-06-11 CN CN201910500495.7A patent/CN110273696B/en active Active
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20070076553A (en) * | 2007-02-26 | 2007-07-24 | 신일씨엔아이(주) | Construction method of underground structure using concrete filled pipe roof and concrete wall |
CN202064649U (en) * | 2011-05-14 | 2011-12-07 | 中国葛洲坝集团股份有限公司 | Telescopic top-form steel pipe support |
CN103485790A (en) * | 2013-10-11 | 2014-01-01 | 中交第二公路勘察设计研究院有限公司 | Shallow tunneling method for pipe-proof-supporting structure combined system |
CN205225281U (en) * | 2015-12-14 | 2016-05-11 | 中建六局土木工程有限公司 | For a short time, it secretly digs section support construction structures than super shallow rectangle that buries to cover to stride |
CN105464675A (en) * | 2016-02-01 | 2016-04-06 | 北京首尔工程技术有限公司 | Novel surface contact pipe curtain structure and construction method thereof |
CN206144569U (en) * | 2016-10-25 | 2017-05-03 | 中铁第四勘察设计院集团有限公司 | Confined is advance in advance and is protected tunnel structure |
CN108278116A (en) * | 2018-01-22 | 2018-07-13 | 东北大学 | A kind of Shallow Large Span pipe curtain support system and its construction method |
CN108930544A (en) * | 2018-07-27 | 2018-12-04 | 中铁十四局集团有限公司 | A kind of broken ground underground large space method of construction |
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