CN207436092U - Multistage pin-connected panel L-type greening barricade construction - Google Patents

Abstract

Multistage pin-connected panel L-type greening barricade construction, effectively to reduce the cost of Rail Highway tall earth fill reinforcing engineering, and speed of application is fast, difficulty is low.The L-type barricade prefabricated components of supporting are formed including the assembled and side slope along circuit extending direction, each L-type barricade prefabricated components form L-type section by the cantilever slab erect with bell plate, the toe of wall for being consolidated in its lower end.The L-type barricade prefabricated components at least lay two-stage in slope height direction by platform mode is moved back, after the cantilever slab rear end face of L-type barricade prefabricated components at different levels placement in layers banket to form high roadbed；Be horizontally arranged at interval the precast concrete block for being formed and being offseted to it between the toe of wall front end face of upper level L-type barricade prefabricated components and the cantilever slab rear end face of next stage L-type barricade prefabricated components, and planting groove is formed between two adjacent precast concrete blocks.

Description

Multistage pin-connected panel L-type greening barricade construction

Technical field

The utility model is related to Rail Highway side slope, more particularly to a kind of multistage pin-connected panel L-type greening barricade construction.

Background technology

L-type barricade is very universal in external use as a kind of armored concrete cantilevered soil-baffling structure.Japanese National Runway specification Regulation, high below the 3m of wall use gravity retaining wall, and 3~6m uses cantilever retaining wall (i.e. L-type barricade)；U.S. FWHA and English State BS9001 provides that highway and city 3-10m soil-baffling structures preferentially select L-type barricade (L-cantilever retaining Wall), U.S. West Lafayette and Chicago is widely used this structure to receive building waste and processing rubbish. China's Permafrost Development Along Qinghai-Tibet Railway also uses this retaining structure.China《Railway bed retaining structure design specification》 (TB10025-2006, partial revision in 2009) summarizes the engineering characteristic of L-type barricade：

(1) the stable structure type can banket to ensure, structure stress is closed in addition to by the dead weight of wall body using heel slab top Reason；

(2) toe of wall can significantly increase stability against overturning, reduce base stress, structure antiskid performance deficiency can increase convex Tenon, so as to be significantly reduced (140kPa or so) to ground requirement for bearing capacity relative gravity formula barricade；

(3) L-type barricade simple structure, easy for construction, wall body section is small, sole mass is light, can preferably play material Strength character.

(4) preferably used in the embankment that building stones lack, foundation bearing capacity is relatively low, the light-duty beauty of moulding.

Project practices at home and abroad shows that Retaining Wall Reinforcement works well in practice, very since L-type barricade mechanical structure is reasonable Few occur destroying and large deformation example, even if in difficult ground, has also reached good effect, in being applied such as Qinghai-Tibet Railway, L The freeze thawing pressure that type barricade preferably bears frozen soil does not occur the deformation for influencing traffic safety.As it can be seen that L-type barricade is filled out in height The highly filled road that side, particularly foundation bearing capacity are relatively low, building stones lack location has significant engineering superiority.

Although application and research of the L-type barricade in traffic engineering practice are long-standing, the application of previous L-type barricade and Spininess is studied to single-stage, this can not meet, and China railways are growing and high roadbed inevitably requires, moreover, railway loading Cycle repeatability and dynamic load requirement L-type barricade there is higher durability, railway is stringent to roadbed settlement control, The sedimentation and deformation of L-type barricade is sought in controlled range, these cause to be difficult to the design method and wall body structure of single-stage L-type barricade It makes and directly applies to railway multistage L-type barricade.

Utility model content

The technical problem to be solved by the utility model is to provide a kind of multistage pin-connected panel L-type greening barricade construction, to have Effect reduces the cost of Rail Highway tall earth fill reinforcing engineering, and speed of application is fast, difficulty is low.

Technical solution is as follows used by the utility model solves its technical problem：

The multistage pin-connected panel L-type greening barricade construction of the utility model, including the assembled and side slope along circuit extending direction The L-type barricade prefabricated components of supporting are formed, each L-type barricade prefabricated components are by the cantilever slab erect and the bell for being consolidated in its lower end Plate, toe of wall form L-type section, it is characterized in that：The L-type barricade prefabricated components are in slope height direction by moving back platform mode at least cloth If two-stage, after the cantilever slab rear end face of L-type barricade prefabricated components at different levels placement in layers banket to form high roadbed；Upper level L-type It is horizontally arranged at interval between the toe of wall front end face of barricade prefabricated components and the cantilever slab rear end face of next stage L-type barricade prefabricated components The precast concrete block to offset is formed to it, planting groove is formed between two adjacent precast concrete blocks.

The beneficial effects of the utility model are can to take multistage pin-connected panel, and every grade of height is relatively low, and autocrane can be complete Into lifting construction, speed of application is fast, difficulty is low；It is relatively low to ground requirement for bearing capacity.Stress is more reasonable, and self-stability is preferable, can have Effect reduces the cost of Rail Highway tall earth fill reinforcing engineering.

Description of the drawings

This specification includes following two width attached drawing：

Fig. 1 is the cross-section diagram of the utility model multistage pin-connected panel L-type greening barricade construction；

Fig. 2 is the cross-section diagram of L-type barricade prefabricated components in the utility model multistage pin-connected panel L-type greening barricade construction；

Component and corresponding mark are shown in figure：L-type barricade prefabricated components 10, cantilever slab 11, mounting hole 11a, hole for hoist 11b, bell plate 12, hoisting ring 12a, toe of wall 13, tenon 14, high roadbed 20, tenon width B, precast concrete block 30, bell plate width B1, toe of wall width B2, planting groove width D, height H.

Specific embodiment

The utility model is further illustrated with reference to the accompanying drawings and examples.

With reference to Fig. 1, the multistage pin-connected panel L-type greening barricade construction of the utility model, including assembled along circuit extending direction And side slope forms the L-type barricade prefabricated components 10 of supporting, each L-type barricade prefabricated components 10 are by the cantilever slab 11 erect and consolidation Bell plate 12, toe of wall 13 in its lower end form L-type section, it is characterized in that：The L-type barricade prefabricated components 10 are in slope height side To at least laying two-stage by moving back platform mode, after 11 rear end face of cantilever slab of L-type barricade prefabricated components 10 at different levels placement in layers fill out Soil forms high roadbed 20；13 front end face of toe of wall of upper level L-type barricade prefabricated components 10 and next stage L-type barricade prefabricated components 10 11 rear end face of cantilever slab between be horizontally arranged at interval the precast concrete block 30 for being formed and being offseted to it, two adjacent precast concretes Planting groove is formed between block 30, trailing plant etc. can be planted in planting groove 30.

The utility model multistage L-type barricade has following comparative benefits in highly filled road：

(1) compared with traditional L-type barricade (2~6m of cantilever retaining wall, 6~9m of counterfort wall), multistage can be taken Lifting construction can be completed in pin-connected panel, every grade of 2~3m of height, autocrane, and speed of application is fast, difficulty is low；

(2) it is relatively low to ground requirement for bearing capacity compared with the soil-baffling structures such as gravity retaining wall.Particularly lacking building stones Area, heavy force formula barricade has more superiority；

(3) compared with embankment pile plate wall, L-type barricade stress is more reasonable.The soil pressure that rolling earth behind retaining wall is formed is unfavorable for wall Stablize, therefore when pile plate wall cantilever is too high, stake section is too big, and stress is unreasonable, and uneconomical；The dead weight and L-type barricade heel slab bankets Be conducive to wall stability, i.e. L-type barricade self-stability is preferable, is conducive to using multilevel hierarchy.

(4) compared with reinforced earth bulkhead, L-type barricade simple structure deforms more controllable.Although reinforced earth has, its own is excellent Gesture, but the complexity due to muscle material performance and with soil body interaction, sedimentation and deformation are controllable not as good as L-type barricade.And L-type barricade To no particular/special requirement of banketing, can gather materials on the spot.

Particularly in railway station high roadbed location, if with multiple-track bridge by the way that cost certainly will costliness.Using conventional articulated gravity formula Barricade, then to ground requirement for bearing capacity higher, basement process cost is also just higher.Using multistage pile plate wall, cost is high.It compares Under, Economic Comparability is had more using multistage L-type barricade.

With reference to Fig. 1, the toe of wall 13 of the upper level L-type barricade prefabricated components 10 be embedded to banket not less than 0.2m.To answer To rough sledding, enhancing structure antiskid performance can set downwardly convex tenon on the bell plate 12 of L-type barricade prefabricated components 10 14.On 13 upper surface of toe of wall of upper level L-type barricade prefabricated components 10 and the cantilever slab 11 of next stage L-type barricade prefabricated components 10 Platform is formed between end face.In general, the height H of the L-type barricade prefabricated components 10 is 2~3m, of length no more than 5m, put down Platform width (toe of wall width B2+ planting grooves width D) be 1~2m, tenon width B, planting groove 30, bell plate width B1, toe of wall width B2 is determined on a case-by-case basis.

With reference to Fig. 2, the L-type barricade prefabricated components 10 are vertically arranged at intervals installation on two transverse end surfaces of cantilever slab 11 Hole 11a, two adjacent L-type barricade prefabricated components 10 at the same level form assembly by being inserted into the reinforcing bar of mounting hole 11a.Make for convenience of lifting Industry sets hole for hoist 11b, the pre-buried setting hoisting ring on bell plate 12 on the cantilever slab 11 of the L-type barricade prefabricated components 10 12a。

The above is some principles that the utility model multistage pin-connected panel L-type greening barricade constructs that explain through diagrams, Be not intended to by the utility model be confined to shown in and the concrete structure and the scope of application in, therefore every be possible to sharp Corresponding modification and equivalent, belong to the apllied the scope of the claims of the utility model.

Claims (5)

1. multistage pin-connected panel L-type greening barricade construction, the L-type that supporting is formed including the assembled and side slope along circuit extending direction are kept off Wall prefabricated components (10), each L-type barricade prefabricated components (10) are by the cantilever slab (11) erect and the bell plate for being consolidated in its lower end (12), toe of wall (13) forms L-type section, it is characterized in that：The L-type barricade prefabricated components (10) are in slope height direction by moving back platform Mode at least lays two-stage, after cantilever slab (11) rear end face of L-type barricade prefabricated components (10) at different levels placement in layers banket shape Into high roadbed (20)；Toe of wall (13) front end face of upper level L-type barricade prefabricated components (10) and next stage L-type barricade prefabricated components (10) be horizontally arranged at interval the precast concrete block (30) for being formed and being offseted to it between cantilever slab (11) rear end face, and two is adjacent pre- Planting groove is formed between concrete block (30) processed.

2. multistage pin-connected panel L-type greening barricade construction as described in claim 1, it is characterized in that：The upper level L-type barricade is pre- What toe of wall (13) embedment of component (10) processed was banketed is not less than 0.2m.

3. multistage pin-connected panel L-type greening barricade construction as described in claim 1, it is characterized in that：The L-type barricade prefabricated components (10) height (H) is 2~3m, of length no more than 5m, and each L-type barricade prefabricated components are on two transverse end surfaces of cantilever slab (11) Vertical to be arranged at intervals mounting hole (11a), two adjacent L-type barricade prefabricated components (10) at the same level are by being inserted into the steel of mounting hole (11a) Muscle forms assembly.

4. multistage pin-connected panel L-type greening barricade construction as claimed in claim 3, it is characterized in that：The L-type barricade prefabricated components (10) hole for hoist (11b) is set on cantilever slab (11), the pre-buried setting hoisting ring (12a) on bell plate (12).

5. multistage pin-connected panel L-type greening barricade construction as described in claim 1, it is characterized in that：The L-type barricade prefabricated components (10) downwardly convex tenon (14) is set on bell plate (12).