CN106593486B - A kind of roadway crossing point concrete filled steel tube sectional shelf-unit - Google Patents
A kind of roadway crossing point concrete filled steel tube sectional shelf-unit Download PDFInfo
- Publication number
- CN106593486B CN106593486B CN201710035533.7A CN201710035533A CN106593486B CN 106593486 B CN106593486 B CN 106593486B CN 201710035533 A CN201710035533 A CN 201710035533A CN 106593486 B CN106593486 B CN 106593486B
- Authority
- CN
- China
- Prior art keywords
- ledge
- supporting rack
- crossing point
- roadway
- steel tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
- E21D11/18—Arch members ; Network made of arch members ; Ring elements; Polygon elements; Polygon elements inside arches
-
- 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
- E21D11/18—Arch members ; Network made of arch members ; Ring elements; Polygon elements; Polygon elements inside arches
- E21D11/22—Clamps or other yieldable means for interconnecting adjacent arch members either rigidly, or allowing arch member parts to slide when subjected to excessive pressure
Abstract
The present invention relates to a kind of roadway crossing point concrete filled steel tube sectional shelf-units.It includes supporting rack, and ledge is equipped on supporting rack, and supporting rack is connected with ledge by docking facilities.Structure of the invention reasonable design, high capacity, construction is simple, later stage repair rate are low, cost-effective, can be applied to Deep Soft Rock Tunnel crossover point.
Description
Technical field
The present invention relates to a kind of roadway crossing point concrete filled steel tube sectional shelf-units.
Background technology
Tunnel is the artery of downhole production, according to the requirement of exploit study and in order to adapt to variation or the geological conditions of ore body
Particular/special requirement, can arrange roadway crossing point, that section of tunnel of two tunnels intersection or tunnel turnoff is handed over tunnel
Trouble point, compared with common tunnel, the excavation space of roadway crossing point is larger, and prop structure and construction technology design are more multiple
It is miscellaneous.Roadway crossing point is the key position of roadway construction supporting, if design is unreasonable, production and safety belt can be given prodigious
The disadvantage of the smaller crossover point supporting of unfavorable factor, especially intersecting angle is more serious, therefore the construction method of roadway crossing point
And support pattern is especially important to keeping the safety in production.
Currently, the most important support technology of roadway crossing point is the supporting of U-shaped steel collapsible timbering, suspension roof support and block
The various Combined Support Technologies such as arch, pneumatically placed concrete layer, slip casting, anchor cable, truss, metal mesh.In recent years, with coal mining depth
It is continuously increased, engineering project disaster increases increasingly, and especially there are large deformation, rheology, ground temperature liters for the country rock at deep tunnel crossover point
Phenomena such as high, the supporting of U-shaped steel collapsible timbering, suspension roof support and various Combined Support Technologies have been difficult to solve deep soft rock
Roadway crossing point difficulty support issues cause grave danger to the safety and high efficiency of deep resource.
Concrete filled steel tube is a kind of composite structure that pouring concrete within steel pipe is formed, and this composite structure is integrated with
The high pressure resistance of concrete can be with the good ductility of steel pipe.In the prior art, filling type steel pipe concrete bracket in underground is as one
The novel support form of kind, has the advantages that high capacity, support cost are low, but it is limited only to Single drive support technology
Research and application, and the application study of steel pipe concrete bracket still belongs to blank in Deep Soft Rock Tunnel crossover point, thus how
This support form is preferably applied in roadway crossing point, and there is prodigious researching value.
Invention content
The present invention provides a kind of roadway crossing point concrete filled steel tube sectional shelf-units, it is reasonable in design, bearing capacity
Height, construction is simple, later stage repair rate are low, cost-effective, can be applied to Deep Soft Rock Tunnel crossover point, solve the prior art
The problem of.
Used technical solution is the present invention to solve above-mentioned technical problem：It includes supporting rack, is set on supporting rack
There are ledge, supporting rack to be connected by docking facilities with ledge.
Support frame as described above is end to end closed type structure, and several ledges, ledge are equipped at intervals on supporting rack
Both ends for C-shaped, ledge are welded with sealing plate, and one end of ledge is located on supporting rack upper outside face and by right
Connection device is coupled, and the other end of ledge is located on supporting rack lower outside face and coupled by docking facilities.
The docking facilities include supporting rack baffle arrangement and ledge baffle arrangement, and supporting rack baffle arrangement includes welding
Two first baffles on the supporting rack lateral surface of ledge end both sides are respectively equipped on two first baffles perpendicular with it
Second baffle, second baffle are welded with first baffle, supporting rack；Ledge baffle arrangement includes being welded in ledge end both sides
Two third baffles, two third baffles abut against with two second baffles, and fourth gear plate is welded on ledge tip inside face,
Four baffles are abutted against with supporting rack.
First baffle, second baffle, third baffle and fourth gear plate are I-steel.
The fourth gear plate and the length between the ledge end of the fourth gear plate are at least 500mm.
Support frame as described above is the disjunct non-enclosed structure of head and the tail, and several ledges are equipped at intervals on supporting rack, are taken
It is n shapes to connect frame, one end of ledge be located at it is on supporting rack upper outside face and coupled by docking facilities, ledge it is another
One end is fixed on roadway floor, and the both ends of supporting rack and ledge are welded with sealing plate；Docking facilities are to be welded in branch
Inserted joint casing and its grafting are stretched into one end of the inserted joint casing on support top, ledge.
The both sides of the inserted joint casing are equipped with flap plate, and flap plate is welded on inserted joint casing and supporting rack.
Grouting port, exhaust outlet are equipped on support frame as described above and ledge.
Supporting rack is formed by several supporting rack monomers being connected by flange and/or casing connection, and ledge is by several
The ledge monomer being connected is formed by flange and/or casing connection.
Anchoring otic placode is equipped on support frame as described above and ledge.
The present invention using the above scheme, has the following advantages：
1, in use, concrete perfusion in supporting rack and ledge, forms concrete filled steel tube, it is integrated with concrete
High pressure resistance can and steel pipe good ductility；Supporting rack forms integer support structure with ledge by docking facilities, effectively
Improve the total bearing capacity of roadway junction；The configuration of the present invention is simple, easy for construction, economic and reliable solves deep soft rock
The problem of roadway crossing point difficulty supporting, simplify the complexity of roadway crossing point support pattern.
2, a kind of structure of docking facilities includes supporting rack baffle arrangement and ledge baffle arrangement, due to tunnel when use
To the pressure of ledge, ledge baffle arrangement is made tightly to be connected to one, supporting rack and ledge with supporting rack baffle arrangement
Integer support structure is formed, this docking mode can realize the transmission of pressure and thrust between ledge and supporting rack, at docking
Moment of flexure is not generated, easily realizes and firm, ensure that the total bearing capacity of roadway junction.
3, first baffle, second baffle, third baffle and fourth gear plate are I-steel, and I-steel bending resistance is strong, residual
Residue stress is small, at low cost, weight is small.
4, fourth gear plate and the length between the ledge end of the fourth gear plate are at least 500mm, that is, install
Ledge end reserves the lap of splice appropriate after the completion, is conducive to the overlap joint stability for improving supporting rack and ledge.
5, another structure of docking facilities is to be welded in the inserted joint casing on supporting rack top, and one end of ledge is stretched into slotting
Female connector pipe and its grafting.Since tunnel is to the pressure of ledge when use, so that ledge is tightly connected to one with supporting rack, prop up
Support and ledge form integer support structure, and this docking mode can realize pressure and thrust between ledge and supporting rack
It transmits, the load that ledge transmits acts directly on supporting rack, and moment of flexure is not generated at docking, easily realizes and firm, ensure that
The total bearing capacity of roadway junction.
6, it is equipped with grouting port, exhaust outlet in supporting rack and ledge, core coagulation can be perfused by grouting port in this way
The coagulators such as soil, the gas that the coagulators such as core concrete generate are discharged from exhaust outlet.
7, supporting rack is formed by several supporting rack monomers being connected by flange and/or casing connection, if ledge by
The dry ledge monomer being connected is formed by flange and/or casing connection.This structure is conducive to supporting rack and ledge
Manufacture, transport and installation.
8, the both ends of supporting rack and ledge are welded with sealing plate, when preventing supporting rack with ledge concrete perfusion
Running pulp.
9, it is equipped with anchoring otic placode in supporting rack and ledge, passes through anchoring otic placode to fixed branch by anchor pole or anchor cable
Support and ledge, and it is located at supporting rack monomer, the ledge monomer at top after preventing supporting rack and ledge from being destroyed
It falls off and causes safety accident.
Description of the drawings
Fig. 1 is the dimensional structure diagram of embodiment one.
Fig. 2 is the structural schematic diagram of the docking facilities of embodiment one.
Fig. 3 is the main structure diagram of embodiment one.
Fig. 4 be in Fig. 3 A-A to schematic cross-sectional view.
Fig. 5 is the right side structural representation of Fig. 4.
Fig. 6 is the left structural representation view of embodiment one.
Fig. 7 be in Fig. 6 B-B to schematic cross-sectional view.
Fig. 8 is the use state diagram one of embodiment one.
Fig. 9 is the use state diagram two of embodiment one.
Figure 10 is the structural schematic diagram of embodiment two.
Figure 11 is the structural schematic diagram of the docking facilities of embodiment two.
Figure 12 is the structural schematic diagram of two supporting rack of embodiment.
Figure 13 is the structural schematic diagram of two ledge of embodiment.
In figure, 1, supporting rack, 2, ledge, 3, docking facilities, 4, grouting port, 5, exhaust outlet, 6, sealing plate, 7, anchoring ear
Plate, 8, auxiliary support frame, 101, supporting rack monomer, 102, flange, 103, casing, 201, ledge monomer, 202, flange, 203,
Casing, 301, first baffle, 302, second baffle, 303, third baffle, 304, fourth gear plate, 3001, inserted joint casing, 3002,
Flap plate.
Specific implementation mode
In order to clarify the technical characteristics of the invention, below by specific implementation mode, and its attached drawing is combined, to this hair
It is bright to be described in detail.
Embodiment 1
As shown in Fig. 1~Fig. 9, the present invention includes supporting rack 1, and supporting rack 1 is end to end closed type structure, is being supported
Several ledges 2 are equipped at intervals on frame 1, ledge 2 is C-shaped, and one end of ledge 2 is located on 1 upper outside face of supporting rack simultaneously
It is coupled by docking facilities 3, the other end of ledge 2 be located on 1 lower outside face of supporting rack and by docking facilities 3 with
It is connected.Docking facilities 3 include supporting rack baffle arrangement and ledge baffle arrangement, and supporting rack baffle arrangement includes being welded in take
Two first baffles 301 on 1 lateral surface of supporting rack of 2 end both sides of frame are connect, the distance between two first baffles 301, which are slightly larger than, to be taken
The diameter of frame 2 is connect, the second baffle 302 perpendicular with it, second baffle 302 and first are respectively equipped on two first baffles 301
Baffle 301, supporting rack 1 weld；Ledge baffle arrangement includes two third baffles 303 for being welded in 2 end both sides of ledge, and two
Third baffle 303 is abutted against with two second baffles 302, and ledge is welded with fourth gear plate 304, fourth gear on 2 tip inside face
Plate 304 is abutted against with supporting rack 1.First baffle 301, second baffle 302, third baffle 303 and fourth gear plate 304 are I-shaped
Steel.Supporting rack 1 is formed by connecting by several supporting rack monomers 101 being connected by flange 102 and/or casing 103.Ledge 2
It is formed by connecting by flange 202 and/or casing 203 by several ledge monomers 201 being connected, the both ends of ledge 2 are equal
It is welded with sealing plate 6.Grouting port 4, exhaust outlet 5 are equipped on supporting rack 1 and ledge 2.It is all provided in supporting rack 1 and ledge 2
There is anchoring otic placode 7.Fourth gear plate 304 and the length between 2 end of ledge of the fourth gear plate 304 are at least
500mm.Supporting rack 1 and ledge 2 are tube body.
Supporting rack 1 is end to end closed type structure, and the section configuration of supporting rack 1 is according to drift section size, country rock
The requirements such as geological conditions can be round, ellipse, annular or similar round etc., can effectively prevent Floor Heave in Roadway.Supporting rack 1
4~6 supporting rack monomers 101 are generally divided into, are connected using casing 103 or flange 102 between supporting rack monomer 101.Because of support
Frame 1 pushes up segmental arc from great, and supporting rack 1 pushes up segmental arc and helps section to be connect preferably with flange 102 with two, prevents the top of supporting rack 1 segmental arc from existing
It is slid in installation process.
Supporting rack 1 is other than bearing pressure from surrounding rock, it is also necessary to the pressure of ledge 2 is born, so the shape of supporting rack 1 needs
Selecting has compared with the circle of high bearing capacity, ellipse, annular or similar round, and larger in roadway crossing point cross dimensions
Place also needs setting auxiliary support frame 8, auxiliary support frame 8 to be close to set up without spacing with supporting rack 1, as shown in Figure 8, Figure 9.
Ledge 2 is non-closed structure, is in " C " shape, and the two ends of ledge 2 pass through docking facilities 3 and 1 shape of supporting rack
At enclosed construction.At roadway crossing point, the overlap joint position of " C " the shape open height of ledge 2 by ledge on supporting rack 1
Set determination.Ledge 2 is generally divided into 3~5 ledge monomers 201, and casing 203 or flange are used between ledge monomer 201
202 connections.W steel bands are used between ledge 2（It is not drawn into figure）Connection, to maintain roadway crossing point steel pipe concrete bracket
Overall stability.Ledge 2 has angle with supporting rack 1, preferably, ledge 2 and 1 perpendicular setting of supporting rack.Support
Frame 1 and ledge 2 are steel pipe.
In use, supporting rack 1 and concrete perfusion in ledge 2, form concrete filled steel tube, it is integrated with concrete
High pressure resistance can and steel pipe good ductility；Supporting rack 1 forms integer support structure with ledge 2 by docking facilities 3, has
Effect improves the total bearing capacity of roadway junction；The configuration of the present invention is simple, easy for construction, it is soft to solve deep for economic and reliable
The problem of rock roadway crossing point difficulty supporting, simplify the complexity of roadway crossing point support pattern.
Docking facilities 3 include supporting rack baffle arrangement and ledge baffle arrangement, since tunnel is to ledge 2 when use
Pressure makes ledge baffle arrangement tightly be connected to one with supporting rack baffle arrangement, and 2 groups of supporting rack 1 and ledge are integral
Supporting construction, this docking mode can realize the transmission of pressure and thrust between ledge 2 and supporting rack 1, not generated at docking
Moment of flexure is easily realized and firm, ensure that the total bearing capacity of roadway junction.
First baffle 301, second baffle 302, third baffle 303 and fourth gear plate 304 are I-steel, I-steel bending resistance
Ability is strong, residual stress is small, at low cost, weight is small.
Grouting port 4, exhaust outlet 5 are equipped on supporting rack 1 and ledge 2, it is mixed core can be perfused by grouting port 4 in this way
The coagulators such as solidifying soil, the gas that the coagulators such as core concrete generate are discharged from exhaust outlet 5.
Supporting rack 1 is formed by connecting by several supporting rack monomers 101 being connected by flange 102 and/or casing 103, is taken
Frame 2 is connect to be formed by connecting by flange 202 and/or casing 203 by several ledge monomers 201 being connected.This structure is advantageous
In the manufacture, transport and installation of supporting rack 1 and ledge 2.
Fourth gear plate 304 and the length between 2 end of ledge of the fourth gear plate 304 are at least 500mm, i.e.,
2 end of ledge reserves the lap of splice appropriate after installation is complete, is conducive to improve supporting rack 1 and the overlap joint of ledge 2 is stablized
Property.
The both ends of ledge 2 are welded with sealing plate 6, running pulp when preventing 2 concrete perfusion of ledge.
It is equipped with anchoring otic placode 7 on supporting rack 1 and ledge 2, passes through anchoring otic placode 7 to fixed by anchor pole or anchor cable
Supporting rack 1 and ledge 2, and be located at the supporting rack monomer 101 at top after preventing supporting rack 1 and ledge 2 from being destroyed, take
It connects frame monomer 201 and falls off and cause safety accident.
Embodiment 2
As shown in Figure 10~Figure 13, the present embodiment and embodiment 1 difference lies in：It includes supporting rack 1, and supporting rack 1 is
Non-enclosed structure disjunct from beginning to end, is equipped at intervals with several ledges 2 on supporting rack 1, and ledge 2 is n shapes, ledge 2
One end be located on 1 upper outside face of supporting rack and coupled by docking facilities 3, the other end of ledge 2 is fixed on lane
On road bottom plate.Docking facilities 3 are the inserted joint casing 3001 for being welded in 1 top of supporting rack, and inserted joint casing is stretched into one end of ledge 2
3001 with its grafting.The both sides of inserted joint casing 3001 be equipped with flap plate 3002, flap plate 3002 be welded in inserted joint casing 3001 with
On supporting rack 1.Grouting port 4, exhaust outlet 5 are equipped on supporting rack 1 and ledge 2.Supporting rack 1 is by several supporting racks being connected
Monomer 101 is formed by connecting by flange 102 and/or casing 103.Ledge 2 is passed through by several ledge monomers 201 being connected
Flange 202 and/or casing 203 are formed by connecting.Supporting rack 1 is arc-shaped.Supporting rack 1 and the both ends of ledge 2 are welded with
Sealing plate 6.Anchoring otic placode 7 is equipped on supporting rack 1 and ledge 2.Supporting rack 1 and ledge 2 are tube body.
Supporting rack 1 is other than bearing pressure from surrounding rock, it is also necessary to the pressure of ledge 2 is born, so the shape of supporting rack 1 needs
Selecting has arc-shaped compared with high bearing capacity, and in roadway crossing point cross dimensions larger part, also needs setting Auxiliary support
Frame 8, auxiliary support frame 8 are close to set up with supporting rack 1 without spacing.
W steel bands are used between ledge 2（It is not drawn into figure）Connection, to maintain roadway crossing point steel pipe concrete bracket
Overall stability.Ledge 2 has angle with supporting rack 1, preferably, ledge 2 and 1 perpendicular setting of supporting rack.Support
Frame 1 and ledge 2 are steel pipe.
In use, supporting rack 1 and concrete perfusion in ledge 2, form concrete filled steel tube, it is integrated with concrete
High pressure resistance can and steel pipe good ductility；Supporting rack 1 forms integer support structure with ledge 2 by docking facilities 3, has
Effect improves the total bearing capacity of roadway junction；The configuration of the present invention is simple, easy for construction, it is soft to solve deep for economic and reliable
The problem of rock roadway crossing point difficulty supporting, simplify the complexity of roadway crossing point support pattern.
Docking facilities 3 are the inserted joint casing 3001 for being welded in 1 top of supporting rack, and inserted joint casing is stretched into one end of ledge 2
3001 with its grafting.Since tunnel is to the pressure of ledge 2 when use, ledge 2 is made tightly to be connected to one with supporting rack 1,
Supporting rack 1 and ledge 2 form integer support structure, this docking mode can realize between ledge 2 and supporting rack 1 pressure and
The transmission of thrust, the load that ledge 2 transmits act directly on supporting rack 1, and moment of flexure is not generated at docking, easily realize and firm
It leans on, ensure that the total bearing capacity of roadway junction.
Above-mentioned specific implementation mode cannot function as limiting the scope of the invention, for the technology people of the art
For member, any alternate modification or transformation made to embodiment of the present invention are all fallen in protection scope of the present invention.
Place is not described in detail by the present invention, is the known technology of those skilled in the art of the present technique.
Claims (3)
1. a kind of roadway crossing point concrete filled steel tube sectional shelf-unit, it is characterised in that：Including supporting rack, it is equipped on supporting rack
Ledge, supporting rack are connected with ledge by docking facilities；Support frame as described above is the disjunct non-enclosed structure of head and the tail,
Several ledges are equipped at intervals on supporting rack, ledge is n shapes, and one end of ledge is located on supporting rack upper outside face and leads to
Cross that docking facilities are coupled, the other end of ledge is fixed on roadway floor, and the both ends of supporting rack and ledge are welded
It is connected to sealing plate；Docking facilities are the inserted joint casing for being welded in supporting rack top, and inserted joint casing and its are stretched into one end of ledge
Grafting；Grouting port, exhaust outlet are equipped on support frame as described above and ledge；Anchoring ear is equipped on support frame as described above and ledge
Plate.
2. a kind of roadway crossing point concrete filled steel tube sectional shelf-unit according to claim 1, it is characterised in that：It is described to insert
The both sides of female connector pipe are equipped with flap plate, and flap plate is welded on inserted joint casing and supporting rack.
3. a kind of roadway crossing point concrete filled steel tube sectional shelf-unit according to claim 1 or 2, it is characterised in that：Branch
Support is formed by several supporting rack monomers being connected by flange and/or casing connection, ledge by it is several be connected take
Frame monomer is connect to form by flange and/or casing connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710035533.7A CN106593486B (en) | 2017-01-18 | 2017-01-18 | A kind of roadway crossing point concrete filled steel tube sectional shelf-unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710035533.7A CN106593486B (en) | 2017-01-18 | 2017-01-18 | A kind of roadway crossing point concrete filled steel tube sectional shelf-unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106593486A CN106593486A (en) | 2017-04-26 |
| CN106593486B true CN106593486B (en) | 2018-07-17 |
Family
ID=58584782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710035533.7A Active CN106593486B (en) | 2017-01-18 | 2017-01-18 | A kind of roadway crossing point concrete filled steel tube sectional shelf-unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106593486B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107313790A (en) * | 2017-08-30 | 2017-11-03 | 中国电建集团中南勘测设计研究院有限公司 | A kind of symmetrical trouble hole supporting construction and its construction method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103485797A (en) * | 2013-09-06 | 2014-01-01 | 中国矿业大学(北京) | Reinforcing structure of grouting port and air exhausting hole of steel-bar concrete rack |
| CN203515613U (en) * | 2013-09-23 | 2014-04-02 | 济南深博矿山设备有限公司 | Structure for connecting ejector rods between steel tube concrete supports |
| CN206429252U (en) * | 2017-01-18 | 2017-08-22 | 山东建筑大学 | A kind of roadway crossing point concrete filled steel tube sectional shelf-unit |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4296545B2 (en) * | 2004-06-01 | 2009-07-15 | 清水建設株式会社 | Center-pillar structure of eyeglass tunnel |
-
2017
- 2017-01-18 CN CN201710035533.7A patent/CN106593486B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103485797A (en) * | 2013-09-06 | 2014-01-01 | 中国矿业大学(北京) | Reinforcing structure of grouting port and air exhausting hole of steel-bar concrete rack |
| CN203515613U (en) * | 2013-09-23 | 2014-04-02 | 济南深博矿山设备有限公司 | Structure for connecting ejector rods between steel tube concrete supports |
| CN206429252U (en) * | 2017-01-18 | 2017-08-22 | 山东建筑大学 | A kind of roadway crossing point concrete filled steel tube sectional shelf-unit |
Non-Patent Citations (1)
| Title |
|---|
| 极软岩巷道交岔点钢管混凝土支架结构设计与应用;何晓升等;《煤炭学报》;20150930;第40卷(第9期);第2040-2048页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106593486A (en) | 2017-04-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109209398B (en) | Pass through that high angle is inverse to rush rich water richness sand tomography tunnel excavation method | |
| CN104847380B (en) | A kind of structure and its construction method for reducing tunnel lining structure internal force | |
| CN106351670A (en) | Closed pre-support tunnel structure | |
| CN209179761U (en) | Pass through that high angle is inverse to rush rich water richness sand tomography supporting and protecting system of tunnel | |
| CN204082170U (en) | A kind of energy-absorbing being applicable to weak broken wall rock allows presses tunnel support system | |
| CN109751063A (en) | A kind of large section tunnel supporting construction and its construction method | |
| CN113062354A (en) | Assembly method for prefabricated subway station of open-cut pile support system | |
| CN108952804A (en) | For blocking the tailing-filled barricade and construction method of dead zone mining tunnel to be filled | |
| CN106968687A (en) | The closed annulus yield supporting device of half-edge coal seam stope drift active workings and method for protecting support | |
| CN210599028U (en) | Primary support supporting structure of super-large-span underground engineering in hard rock area | |
| CN106593486B (en) | A kind of roadway crossing point concrete filled steel tube sectional shelf-unit | |
| CN205858371U (en) | A kind of colliery big cross section digging laneway combined support structure | |
| CN215444085U (en) | High-strength flexible stainless steel part | |
| CN204716248U (en) | Tunnel Heng Dong enters main hole and to caunch structure | |
| CN206429252U (en) | A kind of roadway crossing point concrete filled steel tube sectional shelf-unit | |
| CN206816278U (en) | The new recyclable supporting steel arch-shelf of horizontal ground settlement and tunnel | |
| CN206486912U (en) | Precast concrete settles adjusting apparatus | |
| CN105927251B (en) | Shallow buried type magnesium iron frame-reinforced concrete combination tunnel siding | |
| CN217974413U (en) | Deep and shallow foundation pit supporting construction structure | |
| CN204677212U (en) | A kind of structure reducing tunnel lining structure internal force | |
| CN208619164U (en) | For blocking the tailing-filled barricade of dead zone mining tunnel to be filled | |
| CN104832188B (en) | Concrete filled steel tube roadside support system used for large-section gob-side entry retaining and support method thereof | |
| CN113339014A (en) | Steel rail pipe curtain method and structure for protecting side wall of backward tunnel with sandwiched rock in ultra-small clear distance tunnel | |
| CN206144569U (en) | Confined is advance in advance and is protected tunnel structure | |
| CN210239717U (en) | Strong anchor grouting supporting structure for controlling red shale tunnel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |