CN103912000B - Construction method for reusable composite-material soil nailing wall supporting face plate - Google Patents
Construction method for reusable composite-material soil nailing wall supporting face plate Download PDFInfo
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- CN103912000B CN103912000B CN201410012037.6A CN201410012037A CN103912000B CN 103912000 B CN103912000 B CN 103912000B CN 201410012037 A CN201410012037 A CN 201410012037A CN 103912000 B CN103912000 B CN 103912000B
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- soil nailing
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Abstract
The invention discloses a reusable composite-material soil nailing wall supporting face plate and a construction method thereof and relates to the technical field of anchoring structural parts or wall protection devices. The supporting face plate comprises a plate body, splicing connection portions for connecting two adjacent supporting face plates are arranged at the edges of the plate body, and soil nail holes and water leakage holes penetrating the body are formed in the plate body. The supporting face plate is used for soil nailing wall construction and has the advantages of being firm in construction, capable of preventing wasting of construction materials and preventing construction materials from polluting the underground and reusable.
Description
Technical field
The present invention relates to the engineering device technique field of anchorage structure or retaining wall, more particularly to it is a kind of reusable multiple
Condensation material soil-nail wall support panel and its construction method.
Background technology
Soil nail wall is widely used in foundation pit supporting project, and base pit engineering is all temporary work, and validity period is short (typically not to be surpassed
Spend 2 years).Building Underground Construction is complete as foundation ditch backfill soil nail wall service phase gradually terminates.Existing soil-nail wall support
Structure is by the soil nailing (reinforcing bar) being clouded in the foundation pit side-wall soil body, the armored concrete surface layer group for adhering to foundation pit side-wall surface
Into.The Specific construction of this soil nailed wall retaining structure be first excavation pit to 0.5m depths below soil nailing position, utilize Luoyang
Shovel or mechanical hole building, send into reinforcing bar soil nailing, and bar-mat reinforcement is hung in the slip casting of soil nailing hole, and gunite concrete surface layer treats that facing concrete reaches
Construct down again after design strength one soil nailing.Soil nailing and surfacing steel bar are connected by welding, and this connected mode is existing in construction
Often there is the unstable phenomenon of connection in field, causes some slope instabilities not to be that soil nailing is pulled out but the connection of surface layer and soil nailing
Place's failure.After validity period terminates, soil nailing, surface layer will be buried and underground by permanent, cause a large amount of wastes of resource, be occupied, shadow
Ring subsequently using for the underground space.Additionally, facing concrete jet-anchor execution can produce a large amount of pollutions, it is unfavorable for environmental protection.
The content of the invention
The technical problem to be solved is to provide a kind of reusable composite material soil-nail wall protection slab
And its construction method, construction of soil-nailed wall is carried out by using described protection slab, it is firm with construction, construction material will not be wasted
Material, construction material will not be polluted to underground, and a protection slab repeats the characteristics of utilizing.
To solve above-mentioned technical problem, the technical solution used in the present invention is：A kind of reusable composite
Soil-nail wall support panel, it is characterised in that：Described protection slab includes plate-like body, and the edge of plate-like body is provided with for even
The assembled connecting portion of two adjacent protection slabs is connect, the plate-like body is provided with through the soil nailing hole of the main body and lets out
Water hole.
Preferably, the inside of the plate-like body is provided with reinforcement.
Preferably, the reinforcement area for being formed around extending to plate-like body upper surface outside in the soil nailing hole.
Preferably, the reinforcement is netted using metal material and its structure.
Preferably, the edge of the plate-like body upper surface is smooth, other portions of the plate-like body upper surface
It is arranged with depression or raised.
Preferably, the plate-like body is foursquare cuboid for cross section, each bar side of the upper surface of plate-like body
It is provided with two assembled connecting portions.
Preferably, the assembled connecting portion is Intermediate Gray connecting hole and is fixed on the ring-type of plate-like body edge upper surface
Part.
Preferably, in the center of plate-like body, the spilled water hole is located at assembled connecting portion and soil nailing hole to the soil nailing hole position
Between.
The construction method of a kind of reusable composite material soil-nail wall protection slab, it is characterised in that including following step
Suddenly：
A. excavation of foundation pit is to construction soil nailing at 1/2 soil nailing level interval below design soil nailing position；
B. repair domatic, and will be domatic levelling using the suitable medium coarse sand of water content；
C. using soil nailing through the soil nailing hole on a protection slab panel is made with domatic close contact；
D. suitable backing plate adjustment soil nailing is selected to be kept for 90 degree with the outerplanar angle of backing plate；
E. it is connected with each other by assembled connecting portion between adjacent panel, one layer of geotechnique is laid at adjacent panels connecting sewing
Film；
F. after the period of service terminates, a protection slab is all pulled down, is next Engineering Service.
Preferably, when two pieces of adjacent protection slabs are connected, by using bolt through the connection on assembled connecting portion
Hole is attached.
It is using the beneficial effect produced by above-mentioned technical proposal：By using described protection slab construction soil nail wall,
Overcome the unstable problem of connection between traditional soil-nail wall support gunite concrete surface layer and soil nailing.Using New Supporting face
Plate can be that soil nailing applies certain prestressing force, it is ensured that the firm connection between panel and soil nailing.Described protection slab has can
The characteristics of dismounting is reused, realizes the recycling of material, reduces the pollution to environment, overcomes traditional soil nail wall surface layer
The waste of material being embedded in for a long time after foundation ditch service phase terminates caused by underground and the pollution to environment.Apply prestressed master
Dynamic support pattern, reduces slope deforming, is conducive to the protection to surrounding enviroment (building, pipeline, road).Additionally, by making
With described protection slab, the use of material is reduced, reduce construction cost, with preferably popularization and prospect of the application.
Description of the drawings
With reference to the accompanying drawings and detailed description the present invention is further detailed explanation.
Fig. 1 is the structural representation of the present invention protection slab；
Fig. 2 is the reinforcing rib structure schematic diagram in the present invention protection slab；
Wherein：1st, soil nailing hole 2, reinforcement area 3, assembled connecting portion 4, spilled water hole 5, connecting hole 6, reinforcement.
Specific embodiment
As shown in Figure 1-2, a kind of reusable composite material soil-nail wall protection slab, described protection slab includes plate
Shape main body, the edge of plate-like body is provided with for the assembled connecting portion 3 of two adjacent protection slabs of connection, the tabular master
Body is provided with through the soil nailing hole 1 of the main body and spilled water hole 4.The soil nailing hole 1 is located at the center of plate-like body, described to let out
Water hole 4 is located between assembled connecting portion 3 and soil nailing hole 1.In order to increase the bulk strength of described protection slab, the plate-like body
Inside be provided with reinforcement 6, the reinforcement 6 is netted using metal material and its structure, is slightly smaller in size than the main body.Cause
Surrounding stress for soil nailing hole may be excessive, so the service life in order to improve described protection slab, prevents the four of soil nailing hole
Week damages, the reinforcement area 2 for being formed around extending to plate-like body upper surface outside in the soil nailing hole 1, can be with soil nailing hole
Reinforcement is set up around inside, intensity is improved.The edge of the plate-like body upper surface is smooth, the plate-like body
The other parts of upper surface are provided with depression or raised.Generally the plate-like body is foursquare rectangular for cross section
Body, each bar side of the upper surface of plate-like body is provided with two assembled connecting portions 3, and the assembled connecting portion 3 is Intermediate Gray connection
Hole 5 and it is fixed on the endless member of plate-like body edge upper surface.
Described protection slab is using being fabricated by based on high intensity unsaturated polyester resin.Panel thickness 50mm, according to not
The same length of side that needs can be processed into different length (the general length of side is 1.0～1.5m), and the built-in bar-mat reinforcement of panel adopts HRB335
The bar-mat reinforcement of level diameter 12mm reinforcement weldings is as shown in Figure 2.Plus the soil nailing hole of the reserved diameter 80mm of man-hour face plate center, soil nailing hole
It is reinforcement area (increasing thickness to 8cm) in the range of surrounding twice soil nailing bore dia.Panel surrounding arranges two (totally 8) per side and spells
Load socket part (connection minister 80mm～110mm, wide 50mm, high 60mm, chamfering circular arc radius 30mm), connecting portion is provided with connecting hole
(connection 50～80mm of hole length, width 15mm), panel is connected with each other by connecting portion using bolt.
The invention also discloses a kind of construction method of reusable composite material soil-nail wall protection slab, including with
Lower step：
A. excavation of foundation pit is to construction soil nailing at 1/2 soil nailing level interval below design soil nailing position；
B. repair domatic, and will be domatic levelling using the suitable medium coarse sand of water content；
C. using soil nailing through the soil nailing hole 1 on a protection slab panel is made with domatic close contact；
D. suitable backing plate adjustment soil nailing is selected to be kept for 90 degree with the outerplanar angle of backing plate；
E. it is connected with each other by assembled connecting portion 3 between adjacent panel, one layer of geotechnique is laid at adjacent panels connecting sewing
Film, when two pieces of adjacent protection slabs are connected, is attached by using bolt through the connecting hole 5 on assembled connecting portion 3；
The connection that bolt realizes adjacent two pieces protection slabs can certainly be replaced using connectors such as iron wires；
F. after the period of service terminates, a protection slab is all pulled down, is next Engineering Service.
Use with angled backing plate transition between the locking device and panel of soil nailing termination, it is ensured that between panel and soil nailing
Angle into 90 degree, nail Construction is complete, finishing is domatic and levelling with medium coarse sand, the soil nailing hole of panel through soil nailing and make panel with
Domatic to be adjacent to, the clamp nut using soil nailing termination is locked with panel by soil nailing.
By using described protection slab construction soil nail wall, traditional soil-nail wall support gunite concrete surface layer is overcome with soil
The unstable problem of connection between nail.New Supporting panel is adopted to apply certain prestressing force for soil nailing, it is ensured that panel
Firm connection between soil nailing.The characteristics of described protection slab has detachable reuse, realizes the repetition profit of material
With, the pollution to environment is reduced, overcome traditional soil nail wall surface layer to be embedded in for a long time caused by underground after foundation ditch service phase terminates
Waste of material and the pollution to environment.Apply prestressed active support mode, reduce slope deforming, be conducive to peripheral ring
The protection in border (building, pipeline, road).
Specific case used herein is set forth to the principle and embodiments thereof of the present invention, above example
Illustrate that being used only to help understands the method for the present invention and its core concept.It should be pointed out that for the ordinary skill people of this area
Member for, can also carry out some improvement and modification to the present invention under the premise without departing from the principles of the invention, these improve and
Modification is also fallen in the protection domain of the claims in the present invention.
Claims (2)
1. a kind of reusable composite material soil-nail wall props up the construction method of protection slab, it is characterised in that including following step
Suddenly：
A. excavation of foundation pit is to construction soil nailing at 1/2 soil nailing level interval below design soil nailing position；
B. repair domatic, and will be domatic levelling using the suitable medium coarse sand of water content；
C. using soil nailing through the soil nailing hole (1) on a protection slab panel is made with domatic close contact；
D. suitable backing plate adjustment soil nailing is selected to be kept for 90 degree with the outerplanar angle of backing plate；
E. it is connected with each other by assembled connecting portion (3) between adjacent panel, one layer of geomembrane is laid at adjacent panels connecting sewing；
F. after the period of service terminates, a protection slab is all pulled down, is next Engineering Service；
Wherein, described protection slab includes plate-like body, and the edge of plate-like body is provided with for connecting two adjacent supportings
The assembled connecting portion (3) of panel, the plate-like body is provided with through the soil nailing hole (1) of the main body and spilled water hole (4)；
The inside of the plate-like body is provided with reinforcement (6)；
The reinforcement area (2) for being formed around extending to plate-like body upper surface outside of the soil nailing hole (1)；The reinforcement (6)
Using metal material and its structure is for netted；
The edge of the plate-like body upper surface be it is smooth, the other parts of the plate-like body upper surface be provided with depression or
It is raised；
The plate-like body is foursquare cuboid for cross section, and each bar side of plate-like body upper surface is provided with two assembly
Connecting portion (3)；
The assembled connecting portion (3) is for Intermediate Gray connecting hole (5) and is fixed on the endless member of plate-like body edge upper surface；
, positioned at the center of plate-like body, the spilled water hole (4) is positioned at assembled connecting portion (3) and soil nailing hole (1) for the soil nailing hole (1)
Between.
2. reusable composite material soil-nail wall according to claim 1 props up the construction method of protection slab, its feature
It is：When two pieces of adjacent protection slabs are connected, entered through the connecting hole (5) on assembled connecting portion (3) by using bolt
Row connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410012037.6A CN103912000B (en) | 2014-05-08 | 2014-05-08 | Construction method for reusable composite-material soil nailing wall supporting face plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410012037.6A CN103912000B (en) | 2014-05-08 | 2014-05-08 | Construction method for reusable composite-material soil nailing wall supporting face plate |
Publications (2)
| Publication Number | Publication Date |
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| CN103912000A CN103912000A (en) | 2014-07-09 |
| CN103912000B true CN103912000B (en) | 2017-05-10 |
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| CN201410012037.6A Active CN103912000B (en) | 2014-05-08 | 2014-05-08 | Construction method for reusable composite-material soil nailing wall supporting face plate |
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Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104947662B (en) * | 2015-05-27 | 2017-12-05 | 山东大学 | A kind of soil-nail wall support system based on the recyclable technique of assembled |
| CN104947684B (en) * | 2015-05-27 | 2017-01-04 | 山东大学 | Construction method based on assembled recyclable process soil nailing wall support |
| AT516826B1 (en) * | 2015-09-28 | 2016-09-15 | Swietelsky Baugesellschaft M B H | Device for excavation protection |
| CN105672325B (en) * | 2016-01-22 | 2017-12-05 | 山东大学 | Recyclable assembled Foundation Supported with Composite Soil Nailing system based on anchor cable and soil nailing |
| CN107304566B (en) * | 2016-04-19 | 2019-05-31 | 郑州大学 | A kind of detachable soil nailing wall board structure |
| CN106939616B (en) * | 2017-05-17 | 2022-11-25 | 航天规划设计集团有限公司 | Construction method of assembled soil nail wall steel plate structure |
| CN108049411A (en) * | 2017-11-22 | 2018-05-18 | 浙江海洋大学 | A kind of foundation pit protective stent of high safety performance |
| CN109958137A (en) * | 2019-04-09 | 2019-07-02 | 山西省工业设备安装集团有限公司 | A kind of reinforcement soil nailing facing wall and forming method |
| CN110439003A (en) * | 2019-09-10 | 2019-11-12 | 中兵勘察设计研究院有限公司 | Detachable construction of soil-nailed wall method and soil nailing wall structure |
| CN111705812B (en) * | 2020-07-03 | 2022-07-12 | 中建七局安装工程有限公司 | Recoverable assembly type foundation pit supporting construction method |
| CN113089687A (en) * | 2021-05-11 | 2021-07-09 | 中冶交通建设集团有限公司 | Slope protection method and device |
| CN114319378A (en) * | 2021-12-31 | 2022-04-12 | 北京中岩大地科技股份有限公司 | Construction method of flexible face-protecting soil nail wall |
| CN114232656A (en) * | 2022-01-26 | 2022-03-25 | 甘肃省交通规划勘察设计院股份有限公司 | UHPC (ultra high performance polycarbonate) assembled soil nailing wall structure and construction method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004042517A1 (en) * | 2004-04-02 | 2005-11-03 | Ross, Kurt G., Dipl.-Ing. | Method for securing vertical embankments using retaining boards secured by earth anchors and fitted with wire baskets filled with decorative infill |
| CN101122132B (en) * | 2007-09-03 | 2010-06-09 | 中铁建设集团有限公司 | Demountable composite material face plate brad supporting system and its construction method |
| KR100978607B1 (en) * | 2010-05-06 | 2010-08-27 | (주)화신엔지니어링 | Rotatable land pressing block for road, plantation and complex construction |
| CN102051881B (en) * | 2010-11-02 | 2012-05-30 | 孙涛 | Flexible surface layer soil nailing wall support system and construction method thereof |
| CN202208928U (en) * | 2011-07-20 | 2012-05-02 | 李小青 | Splicing type soil nailing wall slope protecting panel convenient to dismount and made of fiber composite materials |
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