CN204532362U - A kind of UNDERGROUND STRUCTURES - Google Patents
A kind of UNDERGROUND STRUCTURES Download PDFInfo
- Publication number
- CN204532362U CN204532362U CN201420498947.5U CN201420498947U CN204532362U CN 204532362 U CN204532362 U CN 204532362U CN 201420498947 U CN201420498947 U CN 201420498947U CN 204532362 U CN204532362 U CN 204532362U
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- CN
- China
- Prior art keywords
- bearing member
- main bearing
- top board
- underground structures
- arch rib
- 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.)
- Withdrawn - After Issue
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- Lining And Supports For Tunnels (AREA)
Abstract
The utility model discloses a kind of UNDERGROUND STRUCTURES, comprise top board, the main bearing member of described top board is arch rib (61) or beam (62) or rope (63), the two ends of each main bearing member are supported on the Guan Liang (41) of respective respective side respectively, the upper left side of described top board and upper right side arrange anchoring beam (42) respectively, each main bearing member is provided with two nodes (3), each node (3) by prestressing force hoist cable (5) stretch-draw on the anchoring beam (42) of respective side.On the upper left side of top board and upper right side, anchoring beam is set, suspended in midair by the main bearing member of hoist cable to top board, reduce the effective span of component, enhance the supporting capacity of main bearing member, show that main bearing member two ends stress concentration degree, the internal force of component, the sectional dimension of component obtain reduction particularly, the supporting capacity of structure is relatively large.
Description
Technical field
The utility model relates to a kind of underground structure, particularly relates to a kind of tunneling UNDERGROUND STRUCTURES.
Background technology
The support system of underground structure is made up of rock mass and supporting and protection structure, and the structure types of supporting and protection structure comprises domes, rectangular frame structure, beam and slab structure, Cable Structure etc.To UNDERGROUND STRUCTURES, when its top board adopts arch rib or beam or rope to be main bearing member, main bearing member arch rib or beam or rope comparatively large due to span, there is following shortcoming: (1) component arch rib or beam or rope two ends stress are concentrated excessive, need larger bearing capacity of foundation soil; (2) internal force of component is excessive; (3) cross section of component is very little excessive to the greatest extent; (4) supporting capacity of structure is relatively little.
Summary of the invention
In order to overcome the deficiencies in the prior art, the utility model aims to provide a kind of UNDERGROUND STRUCTURES, in its top board, the two ends stress of main bearing member arch rib or beam or rope is concentrated relatively little, component internal force is relatively little, the sectional dimension of component is relatively little, and the bearing capacity of structure is relatively large.
The technical solution adopted in the utility model is: a kind of UNDERGROUND STRUCTURES, comprise top board, the main bearing member of described top board is arch rib or beam or rope, the two ends of each main bearing member are supported on the Guan Liang of respective respective side respectively, it is characterized in that: the upper left side of described top board and upper right side arrange anchoring beam respectively, each main bearing member is provided with two nodes, and each node passes through the stretch-draw of prestressing force hoist cable on the anchoring beam of respective side.
Further, when the main bearing member employing arch rib of described top board or beam, arch rib or beam are steel concrete or assembled steel work.
Further, arrange secondary primary structure member between the main bearing member of described top board, described secondary primary structure member is little arch or secondary beam or rope.
Further, this UNDERGROUND STRUCTURES also comprises first and secondary lining.
The implementation step of this structure:
(1) at the little pilot tunnel of two ends tunneling of the main bearing member of top board, the little pilot tunnel of structure roof oblique upper tunneling;
(2) between two little pilot tunnels, longitudinal separation certain distance offers laterally little pilot tunnel, wherein, when the main bearing member of top board adopts arch rib or beam or rope, arch laterally little pilot tunnel or linear laterally little pilot tunnel or stretched wire shape laterally little pilot tunnel is offered accordingly; Nodes to little pilot tunnel place is set at horizontal little pilot tunnel and offers little pilot tunnel;
(3) in little pilot tunnel, build Guan Liang, build anchoring beam in little pilot tunnel, further, can set anchor pole at little pilot tunnel and little pilot tunnel lateral wall, above-mentioned anchor pole is connected on Guan Liang and anchoring beam;
(4) in horizontal little pilot tunnel, arrange main bearing member, the two supports of main bearing member is on Guan Liang; Tilt in little pilot tunnel and arrange hoist cable, one end of hoist cable is connected on the node of main bearing member, and the other end is connected on anchoring beam; Particularly, when main bearing member be arch rib or beam time, main bearing member adopts steel concrete or prefabricated member, first builds up main bearing member, after stretch-draw hoist cable again; When main bearing member is rope, first side tension cords, post tensioning hoist cable;
(5) horizontal little pilot tunnel further, can be backfilled, tilt little pilot tunnel; Little arch, secondary beam, the secondary primary structure member of Suo Zuowei can be set between main bearing member;
(6) under the protection of top structure, soil layer below excavation top board, can to adopting spray anchor or the supporting of spray net between top board primary structure member, excavation limit, limit carries out first to side wall, finally imposes two linings to structure.
The beneficial effects of the utility model: compared with prior art, on the upper left side of top board and upper right side, anchoring beam is set, suspended in midair by the main bearing member of hoist cable to top board, reduce the effective span of component, enhance the supporting capacity of main bearing member, show that main bearing member two ends stress concentration degree, the internal force of component, the sectional dimension of component obtain reduction particularly, the supporting capacity of structure is relatively large.
Accompanying drawing explanation
Fig. 1 is the shaft side figure of the utility model first embodiment.
Fig. 2 is the first step that the utility model first embodiment applies process.
Fig. 3 is the second step that the utility model first embodiment applies process.
Fig. 4 is the 3rd step that the utility model first embodiment applies process.
Fig. 5 is the 4th step that the utility model first embodiment applies process.
Fig. 6 is the 5th step that the utility model first embodiment applies process.
Fig. 7 is the second embodiment of the present utility model.
Fig. 8 is the 3rd embodiment of the present utility model.
Fig. 9 is the 4th embodiment of the present utility model.
Detailed description of the invention
Below in conjunction with drawings and the specific embodiments, the utility model is described in further detail.
As shown in Figure 1, a kind of UNDERGROUND STRUCTURES, comprise top board, the main bearing member of top board is arch rib 61, the two ends of each main bearing member are supported on the hat beam 41 of respective respective side respectively, and the upper left side of top board and upper right side arrange anchoring beam 42 respectively, and each main bearing member is provided with two nodes 3, each node 3 on the anchoring beam 42 of respective side, reduces the effective span of main bearing member by prestressing force hoist cable 5 stretch-draw.
What Fig. 2 ~ 6 were this embodiment specifically applies process: the first step, as shown in Figure 2, and the first little pilot tunnel 1 at tunneling top board main bearing member two ends, the second little pilot tunnel 2 of excavation top board oblique upper; Second step, as shown in Figure 3, between two the first little pilot tunnels 1, longitudinal separation certain distance offers laterally little pilot tunnel 11, arranges little pilot tunnel 2 place of node 3 place to the second offer little pilot tunnel 21 at horizontal little pilot tunnel 11; 3rd step, as shown in Figure 4, applies hat beam 41 at the first little pilot tunnel 1, anchoring beam 42 is applied at the second little pilot tunnel 2, further, before applying hat beam 41 and anchoring beam 42, can set anchor pole outside the little pilot tunnel 2 of the first little pilot tunnel 1 or the second, termination point of anchor rod is connected to hat beam 41 or 42 li, anchoring beam; In horizontal little pilot tunnel 11, apply arch rib 61, arch rib 61 can adopt steel concrete or assembled steel work, and arch rib 61 two supports is on hat beam 41; In the little pilot tunnel 21 of inclination, apply hoist cable 5, one end of hoist cable 5 is connected on the node 3 of arch rib 61, and the other end is connected on anchoring beam 42, executes prestressing force to hoist cable 5; 4th step, as shown in Figure 5, the excavation top board bottom soil body in a small amount, to carrying out spray anchor or the supporting of spray net between the primary structure member of top; 5th step, as shown in Figure 6, the dig on a wide area top board bottom soil body, excavation limit, limit carries out just propping up 8 to side wall, finally carries out secondary lining 9 to structure.
As shown in Figure 7, also arrange secondary primary structure member 7 between the main bearing member of top board, secondary primary structure member 7 is little arch or secondary beam or rope.According to the prestressing force of the deformation measurement numerical value adjustable hoist cable 5 of top board.
As shown in Figure 8, the main bearing member of top board is beam 62.When the main bearing member employing arch rib 61 of top board or beam 62, arch rib 61 or beam 62 are steel concrete or assembled steel work.As shown in Figure 9, the main bearing member of top board is rope 63.
Claims (4)
1. a UNDERGROUND STRUCTURES, comprise top board, the main bearing member of described top board is arch rib (61) or beam (62) or rope (63), the two ends of each main bearing member are supported on the Guan Liang (41) of respective respective side respectively, it is characterized in that: the upper left side of described top board and upper right side arrange anchoring beam (42) respectively, each main bearing member is provided with two nodes (3), each node (3) by prestressing force hoist cable (5) stretch-draw on the anchoring beam (42) of respective side.
2. UNDERGROUND STRUCTURES according to claim 1, is characterized in that: when the main bearing member of described top board adopts arch rib (61) or beam (62), arch rib (61) or beam (62) are steel concrete or assembled steel work.
3. UNDERGROUND STRUCTURES according to claim 1, is characterized in that: arrange secondary primary structure member (7) between the main bearing member of described top board, and described secondary primary structure member (7) is little arch or secondary beam or rope.
4. UNDERGROUND STRUCTURES according to claim 1, is characterized in that: also comprise just (8) and secondary lining (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420498947.5U CN204532362U (en) | 2014-09-01 | 2014-09-01 | A kind of UNDERGROUND STRUCTURES |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420498947.5U CN204532362U (en) | 2014-09-01 | 2014-09-01 | A kind of UNDERGROUND STRUCTURES |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204532362U true CN204532362U (en) | 2015-08-05 |
Family
ID=53746384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420498947.5U Withdrawn - After Issue CN204532362U (en) | 2014-09-01 | 2014-09-01 | A kind of UNDERGROUND STRUCTURES |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204532362U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104632246A (en) * | 2014-09-01 | 2015-05-20 | 北车建设工程有限责任公司 | Large-span underground structure |
-
2014
- 2014-09-01 CN CN201420498947.5U patent/CN204532362U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104632246A (en) * | 2014-09-01 | 2015-05-20 | 北车建设工程有限责任公司 | Large-span underground structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 100078 Beijing city Fengtai District park is a district 15 building five floor 501, 503 Patentee after: ZHONGCHE CONSTRUCTION ENGINEERING CO., LTD. Address before: 100078, No. 15, Section 1, Fang Cheng District, Beijing, Fengtai District Patentee before: CNR Construction Engineering Co., Ltd. |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150805 Effective date of abandoning: 20170714 |