CN2871651Y

CN2871651Y - Multi-arch reinforced earth baffle structure

Info

Publication number: CN2871651Y
Application number: CN 200620110055
Authority: CN
Inventors: 杨锡武
Original assignee: CHONGQING JIAOTONG INSTITUTE
Current assignee: CHONGQING JIAOTONG INSTITUTE
Priority date: 2006-03-06
Filing date: 2006-03-06
Publication date: 2007-02-21
Anticipated expiration: 2016-03-06

Abstract

The utility model discloses a joint arc enforced bar block wall structure. The structure comprises a metope, a soil enforced bar belt or a grille, a base, a rear wall filled soil and the roadbed, which is characterized that the metope is multi joint arc curve surface, the concrete stake is positioned between the two neighboring arc curve surfaces, the concrete stake is connected with a plurality of the anchor poles perpendicular to the concrete stake, the anchor pole is buried in the rear wall filled soil. The utility model has the technique benefits: 1.to avoid the enforced bar soil block wall outside deformation, crack and break because of low extensile strength to improve the safety, reliability of the enforced bar soil block wall structure, 2.to enhance the rigidity of the enforced bar soil block wall and the wall body adaptability to the roadbed, 3.the definite structural mechanicals principle, no increased quantity of material, safe and reliable.

Description

Multi-arch type reinforced earth bulkhead structure

Technical field

The utility model belongs to the civil works field, especially relates to a kind of multi-arch type reinforced earth bulkhead structure.

Background technology

Reinforced earth bulkhead is a kind of retaining structure that is made of reinforcement material, shingle nail and three parts of banketing.Because this structure of reinforced earth bulkhead is mainly by the interaction between filler behind the wall and the reinforcement and can Selfstabilizing, the effect of shingle nail mainly is the local soil pressure behind the opposing metope, it is in light weight that this wall is had, it is strong to adapt to deformability, requirement for bearing capacity to ground is lower, the characteristics of cost economic, therefore, this retaining structure is used widely in civil workss such as mountain highway roadbed, railway bed, river transport harbour.Yet, the shingle nail of reinforced earth bulkhead structure commonly used is the plane at present, and size is big, bending rigidity is low, and under the soil pressure effect, the shingle nail of plane structure is in the flexural tensile stress state at larger side, and prefabricated concrete wall panel and mortar puzzle joint allow that tensile strength is lower, make shingle nail and mortar puzzle joint under the flexural tensile stress effect, be easy to cracking, cause distortion of reinforced earth wall panel external drum and cracking destruction, had a strong impact on reinforced earth bulkhead durability of structures and security reliability.

Summary of the invention

Based on the deficiency of reinforced earth bulkhead at present commonly used in existence aspect the resistance to deformation, the utility model proposes multi-arch type reinforced earth bulkhead structure, the characteristics of this novel reinforced earth bulkhead structure are that the metope of reinforced earth bulkhead is made a plurality of continuous arched surfaces, its technical scheme is: a kind of multi-arch type reinforced earth bulkhead structure, banket and roadbed after comprising metope, geotechnological reinforced bands or grid, basis, wall, it is characterized in that: described metope is a plurality of continuous arched surfaces, is provided with concrete column between two adjacent arched surfaces.

Concrete column connects some the shank perpendicular with it, in shank is embedded in and bankets behind the wall.

Useful technique effect of the present utility model is: external drum distortion and the cracking destruction that 1, can avoid the reinforced earth bulkhead metope to cause owing to tensile strength is low, thereby the security reliability and the durability of raising reinforced earth bulkhead structure; 2, increased the rigidity of reinforced earth bulkhead metope and body of wall adaptive capacity to ground; 3, structure stress mechanism is clear and definite, does not need to increase material usage, and is safe and reliable.

Description of drawings

Fig. 1 is an elevation of the present utility model;

Fig. 2 is a plan view of the present utility model;

Fig. 3 is a planar walls body structure elevation;

Fig. 4 is a planar walls body structure plan view.

In the accompanying drawing, metope 1, geotechnological reinforced bands or grid 2, the basis 3, banket 4 behind the wall, roadbed 5, above-ground route 6, concrete column 7, shank 8, the arch metope stride the footpath L, the rise f of arch metope, wall height H.

The specific embodiment

Referring to accompanying drawing, a kind of multi-arch type reinforced earth bulkhead structure, comprise metope 1, geotechnological reinforced bands or grid 2, basis 3, banket 4 and roadbed 5 behind the wall, it is characterized in that: described metope 1 is a plurality of continuous arched surfaces, between two adjacent arched surfaces, be provided with concrete column 7, to support arch metope 1.Loading characteristic according to arch structure, the arch shingle nail is in the compression chord state under the lateral earth pressure effect, and the compressive strength height is the characteristics of concrete wall panel, therefore this arch formula metope reinforced earth bulkhead structure has been given full play to the high mechanics advantage of concrete material compressive strength, increased reinforced earth bulkhead metope rigidity simultaneously, reinforced earth bulkhead can not produced under the lateral earth pressure effect owing to metope strength and stiffness deficiency produces deformation failure, having overcome the bending resistance of present reinforced earth bulkhead planar shaped metope draws ability low, integral rigidity is less, be easy to generate the fault of construction of external drum distortion and cracking destruction, improved the security reliability and the durability of reinforced earth bulkhead structure.

Concrete column 7 connects some the shank perpendicular with it 8, and shank 8 is embedded in bankets behind the wall in 4.Shank 8 has strengthened the stability of concrete column 7.

The utility model is being in the domes that the reinforced earth metope structure that is subjected to the flexural tensile stress state becomes the compression chord state, give full play to the high material advantage of concrete wall compressive strength for surface contact, external drum distortion and the cracking destruction that can avoid the reinforced earth bulkhead metope to cause, thereby the security reliability and the durability of raising reinforced earth bulkhead structure owing to tensile strength is low.Mechanism and reason according to causing that reinforced earth bulkhead metope external drum strain cracking destroys become undersized arched surface to large-sized plane, break the whole up into parts, and have increased the rigidity of reinforced earth bulkhead metope and the body of wall adaptive capacity to ground; And structure stress mechanism is clear and definite, does not need to increase material usage, and is safe and reliable.

Claims

1, a kind of multi-arch type reinforced earth bulkhead structure, banket (4) and roadbed (5) after comprising metope (1), geotechnological reinforced bands or grid (2), basis (3), wall, it is characterized in that: described metope (1) is a plurality of continuous arched surfaces, is provided with concrete column (7) between two adjacent arched surfaces.

2, multi-arch type reinforced earth bulkhead structure according to claim 1 is characterized in that: concrete column (7) connects some the shank perpendicular with it (8), in banket after shank (8) is embedded in wall (4).