CN202441392U - Steel temporary inverted arch capable of being fast assembled and disassembled for tunnel - Google Patents
Steel temporary inverted arch capable of being fast assembled and disassembled for tunnel Download PDFInfo
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- CN202441392U CN202441392U CN2012200304554U CN201220030455U CN202441392U CN 202441392 U CN202441392 U CN 202441392U CN 2012200304554 U CN2012200304554 U CN 2012200304554U CN 201220030455 U CN201220030455 U CN 201220030455U CN 202441392 U CN202441392 U CN 202441392U
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- joint
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Abstract
The utility model discloses a steel temporary inverted arch capable of being fast assembled and disassembled for a tunnel. The steel temporary inverted arch is characterized in that each temporary inverted arch body consists of a fixed joint, movable joints and connecting joints which are arranged separately, wherein the fixed joint is positioned in the middle of each temporary inverted arch body, the movable joints of each temporary inverted arch body are positioned at two ends of the corresponding fixed joint, and the connecting joints of each temporary inverted arch body are connected among the corresponding fixed joint and the corresponding movable joints. Convergence and settlement deformation of the tunnel can be controlled effectively, after required functions are realized, the steel temporary inverted arch can be disassembled conveniently and fast and can be reused, other investment is not required, and the construction cost of the tunnel is greatly reduced. Building garbage is avoided, a large quantity of dust and high-decibel noise are also avoided during assembly and disassembly, a good construction environment is provided for construction in a tunnel hole, and construction safety is improved.
Description
Technical field
The utility model relates to the temporary support structures behind the tunnel excavation, more specifically says so as the interim inverted arch of temporary lining behind the tunnel excavation.
Background technology
In subway engineering and construction of tunnel, various Support System in Soft Rock Tunnels or a large amount of the use temporarily of cavern's construction are supported, and wherein interim inverted arch is used very frequent.The formation of the interim inverted arch of steel reinforced concrete commonly used comprises at present: connecting reinforcement between reinforcing bar grid bow member or shaped steel bow member, the shaped steel bow member and the layer of concrete that sprays formation.Its work progress is: excavating in the cavern, the shaped steel bow member at first is installed, shaped steel bow member and supporting shaped steel are welded, between the shaped steel bow member, welding connecting reinforcement then, last sprayed mortar forms layer of concrete, forms the interim inverted arch of steel reinforced concrete; At the excavation of accomplishing bottom, the tunnel soil body, and supporting shaped steel Cheng Huanhou, remove the interim inverted arch of steel reinforced concrete and form the preliminary bracing of having excavated the cavern.To the dismounting of the interim inverted arch of steel reinforced concrete of this form of structure, its process is to abolish concrete with hand hammer drill earlier, connecting reinforcement and shaped steel bow member is removed with scarfing oxygen again, and in this process, steel can not obtain reusing.The problem that this mode exists is: installation process length consuming time; Noise removal process is big, dust is many, produces a large amount of building waste and scrap steel; In tunnel this type small space, carry out scarfing oxygen and have certain danger except that operation.
Summary of the invention
The utility model is for avoiding above-mentioned existing in prior technology weak point, provide a kind of reusable, work progress quick, can reduce cost, and can improve the interim inverted arch of tunnel steel quickly dismantled of safety.
The utility model adopts following technical scheme for the technical solution problem:
The characteristics of the interim inverted arch of the utility model tunnel steel quickly dismantled are: the interim inverted arch of each Pin is set by the fixed knot in the centre of split setting, at the active section at fixed knot two ends be connected fixed knot and form with the joint that is connected between the active section;
Said fixed knot is that weld width is strengthened steel plate greater than the fixed knot of fixed knot " I " word steel sole plate width on the base plate of fixed knot " I " word steel; Between the web of said fixed knot reinforcement steel plate and fixed knot I steel, along being welded with the fixed knot stiffener on the length direction of fixed knot at interval, fixing welding has the fixed knot connection end plate of fixed knot bolt hole at the two ends of said fixed knot;
Said connection joint is that weld width is strengthened steel plate greater than the connection joint that connects joint " I " word steel sole plate width on the base plate that connects joint " I " word steel; Between said connection joint is strengthened steel plate and the web that is connected joint " I " word steel, connect the joint stiffener, have and connect the connection that saves bolt hole and save the connection end plate in the welding that is connected on the joint of an end that is connected with fixed knot along connecting to be welded with at interval on the joint length direction; Connecting end plate at fixed knot connects with bolt with being connected to save between the connection end plate; Save, be positioned at the connection that is provided for being connected on connection joint " I " word steel web in being connected of an end that is connected with active section and save bolt hole with active section;
Said active section is that weld width is strengthened steel plate greater than the active section of active section " I " word steel sole plate width on the base plate of active section " I " word steel, is welded with fixed side respectively in the web both sides of said active section " I " word steel; Be connected the end that is connected of joint; Length direction along active section extends to clamping plate to a pair of fixed side in the end of active section; The clamping plate end is provided with the active section bolt hole; Said clamping plate are clamped in the I steel web both sides of junction plate end, and between active section bolt hole and connection joint bolt hole, are fixedly connected with fastening bolt; End plate is supported in the fixing welding one of an end in that said active section is connected with supporting shaped steel, and said support end plate props up the inboard that withstands on supporting shaped steel.
The design feature of the interim inverted arch of the utility model tunnel steel quickly dismantled also is:
Said connection joint bolt hole is the strip hole that is provided with along the length direction that connects joint; Said active section bolt hole is the strip hole along the length direction setting of active section.
In the both sides of said support end plate limiting plate is set respectively and constitutes a spacing draw-in groove, said supporting shaped steel inlay card is in spacing draw-in groove.
Compared with present technology, the utility model beneficial effect is embodied in:
The utility model can effectively be controlled tunnel convergence and sedimentation and deformation, after accomplishing required function, can remove quickly and easily, and reusable, no longer increase other inputs, greatly reduced the constructing tunnel cost.Do not form building waste, do not produce a large amount of dust and high-decibel noise during assembling and disassembling, good construction environment is provided for the tunnel in-cavity construction, improve working security.
Description of drawings
Fig. 1 a is a fixed knot structural representation in the utility model; Fig. 1 b is a fixed knot schematic cross-sectional view in the utility model; Fig. 1 c is that fixed knot connects the end plate sketch map in the utility model;
Fig. 2 a connects the joint structural representation in the utility model; Fig. 2 b is the A-A sectional view of Fig. 2 a;
Fig. 3 a is an active section structural representation in the utility model; Fig. 3 b is Fig. 3 a schematic top plan view; Fig. 3 c is the B-B sectional drawing of Fig. 3 a;
Fig. 4 is the utility model user mode sketch map;
Label among the figure: 1 fixed knot; 11 fixed knots " I " word steel; 12 fixed knots are strengthened steel plate; 13 fixed knot stiffeners; 14 fixed knot bolts hole; 15 fixed knots connect end plate; 2 connect joint; 21 connect joint " I " word steel; 22 connect joint strengthens steel plate; 23 connect the joint stiffener; 24 connect the joint bolt hole; 25 connect joint connects end plate; 26 connect joint bar shaped bolt hole; 3 active sections; 31 active sections " I " word steel; 32 active sections are strengthened steel plate; 33 fixed sides; 34 support end plate; 35 limiting plates; 36 active section bar shaped bolts hole; 4 supporting shaped steel.
The specific embodiment
Referring to Fig. 4, the form of structure of the interim inverted arch of present embodiment tunnel steel quickly dismantled is the interim inverted arch of each Pin by the fixed knot 1 in the centre of split setting, at the active section 3 at fixed knot two ends be connected fixed knot 1 and form with the joint 2 that is connected between the active section 3;
Shown in Fig. 1 a, Fig. 1 b and Fig. 1 c; Fixed knot 1 is that weld width is strengthened steel plate 12 greater than the fixed knot of fixed knot " I " word steel sole plate width on the base plate of fixed knot " I " word steel 11; Between the web of fixed knot reinforcement steel plate 12 and fixed knot I steel 11, along being welded with fixed knot stiffener 13 on the length direction of fixed knot at interval, fixing welding has the fixed knot connection end plate 15 of fixed knot bolt hole 14 at the two ends of said fixed knot 1;
Shown in Fig. 2 a and Fig. 2 b; Connecting joint 2 is that weld width is strengthened steel plate 22 greater than the connection joint that connects joint " I " word steel sole plate width on the base plate that connects joint " I " word steel 21; Between said connection joint is strengthened steel plate 22 and the web that is connected joint " I " word steel 21, connect joint stiffener 23, have and connect the connection that saves bolt hole 24 and save connection end plate 25 in the welding that is connected on the joint of an end that is connected with fixed knot along connecting to be welded with at interval on the joint length direction; Connecting end plate 15 at fixed knot connects with bolt with being connected to save between the connection end plate 25; Save, be positioned at the connection that is provided for being connected on connection joint " I " word steel web in being connected of an end that is connected with active section and save bolt hole 26 with active section;
Shown in Fig. 3 a, Fig. 3 b and Fig. 3 c; Active section 3 is that weld width is strengthened steel plate 32 greater than the active section of active section " I " word steel sole plate width on the base plate of active section " I " word steel 31, is welded with fixed side 33 respectively in the web both sides of said active section " I " word steel 31; Be connected joint 2 ends that are connected; Length direction along active section extends to clamping plate to a pair of fixed side 33 in the end of active section 3; The clamping plate end is provided with active section bolt hole 36, and said clamping plate are clamped in the I steel web both sides of junction plate end, and between active section bolt hole 36 and connection joint bolt hole 26, is fixedly connected with fastening bolt; For the ease of cooperating, can be set to the gradually narrow trapezium structure shown in Fig. 3 a by clamping plate; End plate 34,34 inboards that withstand on supporting shaped steel 4 of said support end plate are supported in the fixing welding one of an end in that said active section 3 is connected with supporting shaped steel 4.
In the practical implementation, in order can suitably being adjusted connecting on the length, and to be convenient to dismounting, to be provided with that to connect joint bolt hole 26 are the strip holes that are provided with along the length direction that connects joint 2; It is the strip hole along the length direction setting of active section 3 that active section bolt hole 36 also can be set simultaneously.Can regulate the length after connecting joint and active section being connected through strip hole; Limiting plate 35 is set respectively in the both sides of said support end plate 34 constitutes a spacing draw-in groove, said supporting shaped steel 4 inlay cards can effectively be avoided slippage in spacing draw-in groove.
After the installation of accomplishing the interim inverted arch of next Pin, but the rubble of backfill tunnel excavation, soil etc. between adjacent two Pin so that machineries such as vehicle can be current above interim inverted arch, guaranteed the place ahead normal construction; Along with Tunnel Surrounding Rock Pressure increases, interim inverted arch axially loaded increases gradually, because prop up on the supporting shaped steel that withstands on the tunnel at two ends, can effectively control the tunnel convergence distortion; Because the width that on " I " word steel sole plate, welds can not sink it greater than the reinforcement steel plate of " I " word steel sole plate width, can effectively control the vertical sedimentation and deformation in tunnel.
When after this position construction of tunnel is accomplished, needing to remove interim inverted arch, arrangement is artificial unclamps bolt in the strip hole on the active section of two ends, can become flexible and shrink interim inverted arch, can accomplish dismounting in 15 minutes; Whole for the interim inverted arch of steel design does not produce consumption after installing and using, reusable.
Claims (3)
1. interim inverted arch of tunnel steel quickly dismantled, it is characterized in that being provided with the interim inverted arch of each Pin by the fixed knot (1) in the middle of being positioned at of split setting, be positioned at the active section (3) at fixed knot two ends and be connected fixed knot (1) and form with the joint (2) that is connected between the active section (3);
Said fixed knot (1) is that weld width is strengthened steel plate (12) greater than the fixed knot of fixed knot " I " word steel sole plate width on the base plate of fixed knot " I " word steel (11); Between the web of said fixed knot reinforcement steel plate (12) and fixed knot I steel (11), along being welded with fixed knot stiffener (13) on the length direction of fixed knot at interval, fixing welding has the fixed knot connection end plate (15) of fixed knot bolt hole (14) at the two ends of said fixed knot (1);
Said connection joint (2) is that weld width is strengthened steel plate (22) greater than the connection joint that connects joint " I " word steel sole plate width on the base plate that connects joint " I " word steel (21); Between said connection joint is strengthened steel plate (22) and the web that is connected joint " I " word steel (21), connect joint stiffener (23), have and connect the connection that saves bolt hole (24) and save connection end plate (25) in the welding that is connected on the joint of an end that is connected with fixed knot along connecting to be welded with at interval on the joint length direction; Connecting end plate (15) at fixed knot connects with bolt with being connected to save between the connection end plate (25); Save, be positioned at the connection that is provided for being connected on connection joint " I " word steel web in being connected of an end that is connected with active section and save bolt hole (26) with active section;
Said active section (3) is that weld width is strengthened steel plate (32) greater than the active section of active section " I " word steel sole plate width on the base plate of active section " I " word steel (31), is welded with fixed side (33) respectively in the web both sides of said active section " I " word steel (31); Be connected the end that joint (2) is connected; Length direction along active section extends to clamping plate to a pair of fixed side (33) in the end of active section (3); The clamping plate end is provided with active section bolt hole (36); Said clamping plate are clamped in the I steel web both sides of junction plate end, and between active section bolt hole (36) and connection joint bolt hole (26), are fixedly connected with fastening bolt; End plate (34) is supported in the fixing welding one of an end in that said active section (3) is connected with supporting shaped steel (4), and said support end plate (34) props up the inboard that withstands on supporting shaped steel (4).
2. the interim inverted arch of tunnel steel quickly dismantled according to claim 1 is characterized in that: said connection joint bolt hole (26) is the strip hole that is provided with along the length direction that connects joint (2); Said active section bolt hole (36) is the strip hole along the length direction setting of active section (3).
3. the interim inverted arch of tunnel steel quickly dismantled according to claim 1 is characterized in that: limiting plate (35) is set respectively in the both sides of said support end plate (34) constitutes a spacing draw-in groove, said supporting shaped steel (4) inlay card is in spacing draw-in groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200304554U CN202441392U (en) | 2012-01-30 | 2012-01-30 | Steel temporary inverted arch capable of being fast assembled and disassembled for tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200304554U CN202441392U (en) | 2012-01-30 | 2012-01-30 | Steel temporary inverted arch capable of being fast assembled and disassembled for tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202441392U true CN202441392U (en) | 2012-09-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200304554U Withdrawn - After Issue CN202441392U (en) | 2012-01-30 | 2012-01-30 | Steel temporary inverted arch capable of being fast assembled and disassembled for tunnel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202441392U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102562098A (en) * | 2012-01-30 | 2012-07-11 | 中铁四局集团第五工程有限公司 | Tunnel steel temporary inverted arch with rapid assembly and disassembly |
-
2012
- 2012-01-30 CN CN2012200304554U patent/CN202441392U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102562098A (en) * | 2012-01-30 | 2012-07-11 | 中铁四局集团第五工程有限公司 | Tunnel steel temporary inverted arch with rapid assembly and disassembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120919 Effective date of abandoning: 20140115 |
|
| RGAV | Abandon patent right to avoid regrant |