CN102561368B - Pre-compacted reinforced soil block flexible supporting structure - Google Patents
Pre-compacted reinforced soil block flexible supporting structure Download PDFInfo
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- CN102561368B CN102561368B CN201210004236.3A CN201210004236A CN102561368B CN 102561368 B CN102561368 B CN 102561368B CN 201210004236 A CN201210004236 A CN 201210004236A CN 102561368 B CN102561368 B CN 102561368B
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Abstract
The invention discloses a pre-compacted reinforced soil block flexible supporting structure, wherein the intermediate course is a layered integral body formed by wrapping plural horizontal annular reinforced pre-compacted soil blocks (7) with vertical annular geogrids (8) at each layer and connecting by a nail, soil aggregate (13) is filled between the horizontal annular reinforced pre-compacted soil block (7) at the inner side and a side slope to form an inner side drainage layer (16), the vertical annular geogrids (8) at two layers are connected through a connection rod (17), the horizontal annular reinforced pre-compacted soil blocks (7) at each layer are connected with each other via a nail (9), and the pre-compacted horizontal annular wrapped reinforced soil block in a bottom water permeable layer (3) and a slope top water permeable layer (1) is formed by filling soil aggregate (13) in a horizontal annular geogrid (19) and compacting on field. The invention is suitable for rapid repair of water damaged or collapsing road slope of expansive soil, red clay and red sandstone, and has low application cost, no road occupation in construction, convenient process and fast construction speed.
Description
Technical field
The present invention relates to a kind of protection of slope of highway, is a kind of pre-compacted reinforcement soil block flexible building block structure.
Background technology
Existing patent open (bulletin) number: 201891130U(Chinese patent, open (bulletin) number: 201891130U, open (bulletin) day publication date: on July 6th, 2011) flexible precast block retaining wall structure patent a kind of soil-baffling structure is disclosed, this structure is made up of vertical dowel and the horizontal geotechnological anchor pole piling up the building block on backfill aggregate or concrete beam by rule and be arranged on concrete block masonry layer.This structure applications cost is high, and is not suitable for the geological conditions such as expansive soil, admaic earth; A kind of flexible reinforcement retaining structure and construction method ((Chinese patent thereof, open (bulletin) number: CN100464034, publication date: on February 25th, 2009) the flexible shoring structure that provides of this invention has following architectural feature: be pervious foundation layer at the bottom of retaining structure, between retaining structure and excavation face, have pervious layer, this pervious layer and pervious foundation layer are integrated; Under pervious foundation layer, excavation has sewer; In whole retaining structure, lay muscle material, the muscle material of every layer all exceedes the width of retaining structure, and anti-package is to last layer, and is connected the excavated earthen backfill compacting of every layers of reinforcement material with the muscle material of last layer.This structure is particularly suitable for expansive soil, destroys but collapse to slide for the side slope of operation highway, will cause construction period traffic jam because digging up and filling in soil in work progress need to take road surface, and in addition, speed of application can not meet the requirement of quick reparation.
In swelled ground area and red beds basin, built highway construction cut slope damage by water is the Common Diseases of side slope.Usually can cause traffic jam once there is the damage by water of side slope, how to protect under logical condition at road, repair as early as possible the section of damage by water, recover normal traffic, the construction difficult problem that the person that is road management faces.
Summary of the invention
Technical problem to be solved by this invention is to provide and is a kind ofly applicable to the quick reparation of the damaged or destroyed by floods such as expansive soil, admaic earth and Red Sandstone, the ways section of collapsing road slope and application cost is low, construction does not take the fast pre-compacted reinforced soil block flexible supporting structure of road, simple process and speed of application.
In order to solve the problems of the technologies described above, pre-compacted reinforced soil block flexible supporting structure provided by the invention, intermediate layer is every layer and wraps up and use nail by some horizontal ring-type reinforcement pre-compacted soil blocks by vertical ring-type geo-grid and be connected to form a laminated integrally, between the described horizontal ring-type reinforcement pre-compacted soil block of inner side and side slope, filling gravelly soil is connected in forming inboard row water layer and squeezing into soil block with pitman, the cohesive soil pre-compacted that described horizontal ring-type reinforcement pre-compacted soil block is filled with water content preparation on request by horizontal ring-type geo-grid forms, each interlayer of described horizontal ring-type reinforcement pre-compacted soil block is by following closely connection, bottom discharge structure layer is made up of bottom pervious layer and bottom sewer, top layer discharge structure layer is made up of top, slope pervious layer and top, slope sewer, the pre-compacted horizontal loops bag reinforcement soil block in described bottom pervious layer and described top, slope pervious layer by horizontal ring-type geo-grid filling gravelly soil at the scene compacting form.
The structure of described bottom sewer and described top, slope sewer is to form being laid on after the waterproof geotextiles of ditch bottom and flexible porous tube filling gravelly soil compacting.
The optimum water content that described cohesive soil obtains by modified compaction test add 3 percentage points with can by between geo-grid and compacting soil block, form a fine and close combination be as the criterion preparation and index of plasticity be greater than 17.
Every layer is wrapped up by vertical ring-type geo-grid and follows closely and connect with Vertical U-type by some horizontal ring-type reinforcement pre-compacted soil blocks.
Each interlayer of described horizontal ring-type reinforcement pre-compacted soil block is connected by the U-shaped nail of level.
The pre-compacted reinforced soil block flexible supporting structure that adopts technique scheme, horizontal ring-type reinforcement pre-compacted soil block is reinforced earth, has the shear strength larger than the general soil body and crack resistance; Due to no longer side slope field fabrication, thereby avoid construction tying up highway communication road; Horizontal ring-type reinforcement pre-compacted soil block is transported to job site, and connects assembledly by geo-grid, U-shaped nail, can form fast an overall reinforced earth dummy, thereby greatly reduce the construction period, reduce construction to the impact on road traffic.
It is strange land compacting, on-site consolidation construction that the present invention changes traditional on-the-spot compacting filling construction, avoid tying up traffic route and further aggravating because of repairing construction place the problem of traffic jam, simultaneously, strange land compacting can also improve work efficiency greatly, effectively control the Forming Quality of compacting block, form safer side slope dummy.
In sum, the present invention combines the advantage of flexible precast block retaining wall structure and flexible reinforcement retaining structure, have that application cost is low, construction does not take the fast feature of road, simple process and speed of application, be applicable to the damaged or destroyed by flood such as Expansive Soil of Expressways, admaic earth and Red Sandstone of operation, the quick reparation of the ways section of collapsing road slope.
Brief description of the drawings
Fig. 1 is pre-compacted reinforcement soil block flexible shoring structure schematic cross-sectional view.
Fig. 2 is pre-compacted reinforcement soil block flexible shoring structure drawing.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
Referring to Fig. 1 and Fig. 2, intermediate layer is every layer and wraps up by vertical ring-type geo-grid 8 by some horizontal ring-type reinforcement pre-compacted soil blocks 7, between each soil block of horizontal ring-type reinforcement pre-compacted soil block 7, connected by nail 9, between vertical ring-type geo-grid 8 and horizontal ring-type reinforcement pre-compacted soil block 7, be connected with nail 2, thereby connect and form a Fill Reinforced With Geogrids prop entirety by pitman 17 at vertical ring-type geo-grid 8 two ends, between the horizontal ring-type reinforcement pre-compacted soil block 7 of inner side and side slope, filling gravelly soil 13 forms inboard row water layer 16 and adjacent vertical ring-type geo-grid is connected with pitman 17, cohesive soil 20 pre-compacted that horizontal ring-type reinforcement pre-compacted soil block 7 is filled with water content preparation on request by horizontal ring-type geo-grid 19 form, the optimum water content that cohesive soil 20 obtains by modified compaction test add 3 percentage points with can by between geo-grid and compacting soil block, form a fine and close combination be as the criterion preparation and requirement index of plasticity be greater than 17, each interlayer of horizontal ring-type reinforcement pre-compacted soil block 7 is connected by the U-shaped nail 10 of level, bottom discharge structure layer is made up of bottom pervious layer 3 and bottom sewer 14, top layer discharge structure layer is made up of top, slope pervious layer 1 and top, slope sewer 15, pre-compacted horizontal loops bag reinforcement soil block in bottom pervious layer 3 and top, slope pervious layer 1 by horizontal ring-type geo-grid 19 filling gravelly soils 13 at the scene compacting form, the structure of bottom sewer 14 and top, slope sewer 15 is to be laid on waterproof geotextiles 18 and the rear filling gravelly soil 13 of flexible porous tube 12 the compacting formation of ditch bottom, plant loam 5 domatic having paved, plant loam 5 and be provided with top layer grass planting layer 4, on top layer grass planting layer 4, plant and be implanted with grass planting 6.
Referring to Fig. 1 and Fig. 2, horizontal ring-type reinforcement pre-compacted soil block 7 is reinforced earth, has the shear strength larger than the general soil body and crack resistance; Due to no longer side slope field fabrication, thereby avoid construction tying up highway communication road; Horizontal ring-type reinforcement pre-compacted soil block is transported to job site, and connects assembledly by geo-grid, u-shaped nail, can form fast an overall reinforced earth dummy, thereby greatly reduce the construction period, reduce construction to the impact on road traffic;
Referring to Fig. 1 and Fig. 2, Specific construction flow process is as follows: remove the damaged or destroyed by flood soil body-------carrying out modified compaction test--air-dry earth material of choosing cohesive soil earth material of selecting compacting soil block manufacturing field, and the optimum water content obtaining by modified compaction test adds 3 percentage points of preparations of carrying out compacting block earth material--geo-grid is laid under compacting block earth material and carries out compaction moulding with compacting machinary (the above road roller of 18T), and by geo-grid anti-package and be pressed into soil block form geo-grid compacting soil block (degree of compaction is not less than 90%)--by geo-grid compacting soil block be transported to repair position, and with pitman by upper and lower and left and right between two adjacent compacting soil block be connected---tamping position, geo-grid compacting soil block assembled body behind with gravelly soil--in limit portion and complete after whole reparations, plant loam and carry out grass planting domatic paving.
Claims (4)
1. a pre-compacted reinforced soil block flexible supporting structure; it is characterized in that: intermediate layer is every layer and wraps up by vertical ring-type geo-grid (8) by some horizontal ring-type reinforcement pre-compacted soil blocks (7); between each soil block of horizontal ring-type reinforcement pre-compacted soil block (7), connected by nail (9); between vertical ring-type geo-grid (8) and horizontal ring-type reinforcement pre-compacted soil block (7), be connected with nail (2), pass through pitman (17) thereby connect at vertical ring-type geo-grid (8) two ends to form a Fill Reinforced With Geogrids prop; Between the described horizontal ring-type reinforcement pre-compacted soil block (7) of inner side and side slope, filling gravelly soil (13) forms inboard row water layer (16), cohesive soil (20) pre-compacted that described horizontal ring-type reinforcement pre-compacted soil block (7) is filled with water content preparation on request by horizontal ring-type geo-grid (19) forms, the optimum water content that described cohesive soil (20) obtains by modified compaction test adds 3 percentage points forming the preparation that is as the criterion of a fine and close combination between geo-grid and compacting soil block, and requires index of plasticity to be greater than 17; Bottom discharge structure layer is made up of bottom pervious layer (3) and bottom sewer (14), top layer discharge structure layer is made up of top, slope pervious layer (1) and top, slope sewer (15), the pre-compacted horizontal loops bag reinforcement soil block in described bottom pervious layer (3) and described top, slope pervious layer (1) by horizontal ring-type geo-grid (19) filling gravelly soil (13) at the scene compacting form.
2. pre-compacted reinforced soil block flexible supporting structure according to claim 1, is characterized in that: the structure of described bottom sewer (14) and described top, slope sewer (15) is to be laid on waterproof geotextiles (18) and the rear filling gravelly soil (13) of flexible porous tube (12) the compacting formation of ditch bottom.
3. pre-compacted reinforced soil block flexible supporting structure according to claim 1 and 2, it is characterized in that: the horizontal ring-type reinforcement pre-compacted soil block (7) described in every layer is squeezed in soil block and is connected with vertical ring-type geo-grid (8) Vertical U-type nail (9), the two ends of the vertical ring-type geo-grid of levels (8) connect by pitman (17).
4. pre-compacted reinforced soil block flexible supporting structure according to claim 1 and 2, is characterized in that: each interlayer of described horizontal ring-type reinforcement pre-compacted soil block (7) is connected by the U-shaped nail of level (10).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210004236.3A CN102561368B (en) | 2012-01-09 | 2012-01-09 | Pre-compacted reinforced soil block flexible supporting structure |
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| CN201210004236.3A CN102561368B (en) | 2012-01-09 | 2012-01-09 | Pre-compacted reinforced soil block flexible supporting structure |
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| CN102561368A CN102561368A (en) | 2012-07-11 |
| CN102561368B true CN102561368B (en) | 2014-08-06 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105421469B (en) * | 2015-11-17 | 2018-02-02 | 长沙理工大学 | A kind of Fill Reinforced With Geogrids covering wall construction and construction method |
| CN107326914B (en) * | 2017-07-10 | 2019-12-27 | 长沙理工大学 | Dead weight anchoring type geogrid reinforced soil structure and construction method thereof |
| CN111576451B (en) * | 2020-06-11 | 2022-01-07 | 长沙理工大学 | Expansive soil cutting slope prevention and control structure and construction method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5551809A (en) * | 1994-08-30 | 1996-09-03 | Keystone Retaining Wall Systems, Inc. | Embankment wall construction and method and block construction for making the same |
| CN1880587A (en) * | 2005-06-17 | 2006-12-20 | 长沙理工大学 | Flexible reinforced retaining structure and construction method therefor |
| CN101555693A (en) * | 2009-03-27 | 2009-10-14 | 朱海龙 | Reinforced core-enveloped structural slope protector |
| CN101851894A (en) * | 2010-07-01 | 2010-10-06 | 中国科学院地质与地球物理研究所 | Protection method for improving salt expansion or dissolution sink of salty soil |
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2012
- 2012-01-09 CN CN201210004236.3A patent/CN102561368B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5551809A (en) * | 1994-08-30 | 1996-09-03 | Keystone Retaining Wall Systems, Inc. | Embankment wall construction and method and block construction for making the same |
| CN1880587A (en) * | 2005-06-17 | 2006-12-20 | 长沙理工大学 | Flexible reinforced retaining structure and construction method therefor |
| CN101555693A (en) * | 2009-03-27 | 2009-10-14 | 朱海龙 | Reinforced core-enveloped structural slope protector |
| CN101851894A (en) * | 2010-07-01 | 2010-10-06 | 中国科学院地质与地球物理研究所 | Protection method for improving salt expansion or dissolution sink of salty soil |
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