CN213116336U - Anti-sliding device for corrugated steel pipe tunnel structure under large longitudinal slope condition - Google Patents
Anti-sliding device for corrugated steel pipe tunnel structure under large longitudinal slope condition Download PDFInfo
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- CN213116336U CN213116336U CN202021675017.4U CN202021675017U CN213116336U CN 213116336 U CN213116336 U CN 213116336U CN 202021675017 U CN202021675017 U CN 202021675017U CN 213116336 U CN213116336 U CN 213116336U
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- bellows
- concrete base
- steel pipe
- corrugated steel
- longitudinal slope
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Abstract
An anti-slip device for a corrugated steel pipe tunnel structure under a large longitudinal slope condition, comprising: bellows, concrete base arrange in the bellows below, the concrete base bottom surface is plane or cascaded surface, set up the camber recess on the concrete base with the bellows arc shape is corresponding, the bellows with the prefabricated connecting piece is connected to the concrete base, the bottom of bellows connect the position the connecting piece the concrete base is connected as an organic whole structure through concreting, the bellows embedding in the camber recess, the connecting piece anchor is gone into in the concrete base, the bellows with camber recess gomphosis anchor. After the base is firmly connected with the corrugated steel pipe, the friction force between the base and the soil body is enough to resist the component of gravity in the direction of the slip plane. The anti-slip capability of the corrugated steel pipe tunnel under the condition of a large longitudinal slope can be ensured.
Description
Technical Field
The utility model belongs to the technical field of corrugated steel pipe tunnel, concretely relates to anti-skidding device that is used for corrugated steel pipe tunnel structure under big longitudinal gradient condition.
Background
The corrugated steel pipe tunnel is a structure which takes steel corrugated plates and backfill soil as main materials and bears external loads such as the dead weight of soil covering, lateral soil pressure and the like by utilizing a soil-steel common stress system formed by closely combining soil and a corrugated steel pipe structure. The corrugated steel pipe tunnel is fast in construction and suitable for a field with poor foundation conditions and thick soil covering. The corrugated steel pipe tunnel is wavy in appearance, and part of steel plates can be approximately seen as embedded soil bodies, so that the corrugated steel pipe tunnel has certain longitudinal anti-slip capacity; however, when the longitudinal slope of the tunnel is large, the corrugated steel tube tunnel also has the problem of insufficient anti-slip capability, which is common in practical engineering, so that the anti-slip capability of the corrugated steel tube tunnel needs to be improved to meet the requirement of using the corrugated steel tube tunnel in a complex terrain.
SUMMERY OF THE UTILITY MODEL
The utility model provides an anti-sliding device that is used for ripple steel pipe tunnel structure under big longitudinal gradient condition, its aim at solve when the tunnel longitudinal gradient is great, the not enough technical problem of bellows tunnel anti-sliding ability.
The utility model adopts the following technical proposal,
an anti-slip device for a corrugated steel pipe tunnel structure under a large longitudinal slope condition, comprising: bellows, concrete base arrange in the bellows below, the concrete base bottom surface is plane or cascaded surface, set up the camber recess on the concrete base with the bellows arc shape is corresponding, the bellows with the prefabricated connecting piece is connected to the concrete base, the bottom of bellows connect the position the connecting piece the concrete base is connected as an organic whole structure through concreting, the bellows embedding in the camber recess, the connecting piece anchor is gone into in the concrete base, the bellows with camber recess gomphosis anchor.
The bottom surface of the step surface is a horizontal surface, and the step surface gradually faces upwards along the gradient of the large longitudinal wave.
The connecting piece is a steel bar or a steel bar cage.
The bottom surface of the concrete base is horizontally arranged or has an included angle of not less than 5 degrees with the longitudinal slope.
The inner surface of the concrete base is provided with ripples.
The two ends of the concrete base are not higher than 1/4 of the clearance height of the corrugated pipe.
The technical effects of the utility model:
the utility model discloses on the basis of corrugated steel plate self anti-skidding ability, with the help of the concrete base of the natural ground tunnel longitudinal gradient soil body of embedding, and the connecting piece of corrugated steel pipe and base, guarantee corrugated steel pipe's anti-skidding ability. After the base is firmly connected with the corrugated steel pipe, when the corrugated steel pipe longitudinally displaces slightly, the corrugated steel pipe can extrude surrounding soil, so that passive soil pressure is generated; in addition, the friction force between the substrate and the soil body is enough to resist the component of the gravity in the direction of the slip plane. Therefore, the utility model discloses can ensure corrugated steel pipe tunnel anti slippage ability under big longitudinal gradient condition. Furthermore, the anti-sliding effect is increased by the corrugation of the arc-shaped groove of the base, and the anti-sliding effect is increased by the step on the ground of the base.
Drawings
Figure 1 is an integral schematic view of the utility model connected with a corrugated pipe,
figure 2 is a schematic front elevation view of the present invention,
figure 3 is a perspective view of the present invention,
fig. 4 is a schematic view of the corrugated steel pipe and the connecting member of the present invention.
Figure 5 is a schematic side elevation view of the present invention,
description of the drawings: the corrugated pipe comprises a corrugated pipe 1, a concrete base 2, a connecting piece 11, an arc-shaped groove 21, a step surface 22, corrugations 23, a plane 25 and backfill 3; a tunnel longitudinal slope soil body 4;
Detailed Description
Referring to fig. 1, 2, 3 show, the utility model relates to an anti-skidding device that is used for corrugated steel pipe tunnel structure under big longitudinal gradient condition, include: bellows, concrete base 2 arrange in 1 below of bellows, 2 bottom surfaces of concrete base are plane 25 or ladder face 22, set up on concrete base 2 the camber groove 21 with the bellows arc shape is corresponding, the bellows with concrete base connects face prefabricated connecting piece 11, the bottom of bellows connect the position connecting piece 11 concrete base 2 connects structure as an organic whole through concreting, the bellows embedding in the camber groove 21, connecting piece 11 anchor is gone into in the concrete base 2, bellows 1 with camber groove 21 gomphosis anchor.
Preferably, the bottom surface of the stepped surface 22 is a horizontal surface, and the stepped surface gradually rises along the gradient of the large longitudinal wave.
Preferably, the connecting member 11 is a steel bar or a steel reinforcement cage.
The bottom surface of the concrete base 2 is horizontally arranged or arranged with an included angle of not less than 5 degrees with the longitudinal slope.
The concrete base 2 is provided with corrugations 23 on the inner surface.
Preferably, both ends of the concrete base 2 are not higher than 1/4 of the clearance height of the corrugated pipe.
Adopt the utility model discloses the structure improves corrugated steel pipe tunnel anti sliding ability under big longitudinal gradient condition, can design according to following step:
firstly, determining a slip plane shear force through calculation;
secondly, determining the length and the width of the base according to the shearing force condition, and calculating the required embedding depth according to the principle that a second slip surface is not generated on the bottom surface of the base under the condition of a large longitudinal slope;
thirdly, correcting the length of the base according to the calculated embedding depth to ensure the bearing capacity of the base;
fourthly, determining the structure of the connecting piece, and calculating the quantity and the area of the required steel bars according to the principle that the base is not damaged.
By adopting the structure, the anti-slip capacity of the corrugated steel pipe tunnel under the condition of a large longitudinal slope is improved, and the actual construction mode can be carried out according to the following steps:
firstly, binding base steel bars, and embedding connecting steel bars with the concrete base;
secondly, assembling the corrugated steel pipe and welding the steel bar or the steel reinforcement cage connecting piece;
and thirdly, pouring a concrete base, and connecting the corrugated steel structure with the concrete base by using a connecting piece.
The utility model provides an anti-skidding measure for big longitudinal gradient ripple steel pipe tunnel structure, make full use of the bearing capacity of concrete base and the soil body on every side, provide a solution of the problem of sliding of big longitudinal gradient ripple steel pipe tunnel structure, application prospect is very wide, if can adopt on a large scale, will have great meaning to the ripple steel lining tunnel technique under complicated geological conditions and the special use requirement, produce great economic benefits and social.
Examples
The utility model discloses implement the back in certain area venue facility construction project design-certain mountain skiing center-certain technical road tunnel ", solved big longitudinal gradient ripple steel pipe tunnel structure's the problem of sliding, the explanation antiskid moves the effect and is showing.
Claims (6)
1. An anti-slip device for a corrugated steel pipe tunnel structure under a large longitudinal slope condition, comprising: bellows, concrete base, its characterized in that, concrete base (2) arrange in bellows (1) below, concrete base (2) bottom surface is plane (25) or cascaded surface (22), set up on concrete base (2) arc type recess (21) with bellows arc shape is corresponding, the bellows with concrete base connection face prefabricated connecting piece (11), the bottom of bellows connect the position connecting piece (11) concrete base (2) are connected as an organic whole structure through concreting, the bellows embedding in arc type recess (21), the connecting piece anchor is gone into in the concrete base, the bellows with arc type recess gomphosis anchor.
2. The anti-slip device for the corrugated steel pipe tunnel structure under the condition of large longitudinal slope according to claim 1, wherein the bottom surface of the stepped surface (22) is a horizontal surface, and the stepped surface is gradually upward along the gradient of the large longitudinal wave.
3. An anti-slip device for a corrugated steel pipe tunnel structure under a large longitudinal slope condition as claimed in claim 1, wherein the connecting member is a reinforcing bar or a reinforcing cage.
4. The anti-sliding device for the corrugated steel pipe tunnel structure under the condition of the large longitudinal slope is characterized in that the bottom surface of the concrete base (2) is horizontally arranged or forms an included angle of not less than 5 degrees with the longitudinal slope.
5. An anti-slip arrangement for corrugated steel pipe tunnel construction in heavy longitudinal slope conditions according to claim 1, characterized in that the inner face of the concrete foundation (2) is provided with corrugations (23).
6. The anti-slip device for the corrugated steel pipe tunnel structure under the condition of large longitudinal slope of claim 1, wherein both ends of the concrete base (2) are not higher than 1/4 of the clearance height of the corrugated pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021675017.4U CN213116336U (en) | 2020-08-12 | 2020-08-12 | Anti-sliding device for corrugated steel pipe tunnel structure under large longitudinal slope condition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021675017.4U CN213116336U (en) | 2020-08-12 | 2020-08-12 | Anti-sliding device for corrugated steel pipe tunnel structure under large longitudinal slope condition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213116336U true CN213116336U (en) | 2021-05-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021675017.4U Active CN213116336U (en) | 2020-08-12 | 2020-08-12 | Anti-sliding device for corrugated steel pipe tunnel structure under large longitudinal slope condition |
Country Status (1)
| Country | Link |
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| CN (1) | CN213116336U (en) |
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2020
- 2020-08-12 CN CN202021675017.4U patent/CN213116336U/en active Active
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