CN105113483B - A kind of cellularpiston composite water draining board and its construction method - Google Patents
A kind of cellularpiston composite water draining board and its construction method Download PDFInfo
- Publication number
- CN105113483B CN105113483B CN201510421030.4A CN201510421030A CN105113483B CN 105113483 B CN105113483 B CN 105113483B CN 201510421030 A CN201510421030 A CN 201510421030A CN 105113483 B CN105113483 B CN 105113483B
- Authority
- CN
- China
- Prior art keywords
- cellularpiston
- draining board
- fiber
- water draining
- permeable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 72
- 239000002131 composite material Substances 0.000 title claims abstract description 25
- 238000010276 construction Methods 0.000 title claims abstract description 24
- 239000000463 material Substances 0.000 claims abstract description 37
- 239000000835 fiber Substances 0.000 claims abstract description 32
- 238000011049 filling Methods 0.000 claims abstract description 8
- 230000006835 compression Effects 0.000 claims abstract description 6
- 238000007906 compression Methods 0.000 claims abstract description 6
- 239000004033 plastic Substances 0.000 claims abstract description 3
- 229920003023 plastic Polymers 0.000 claims abstract description 3
- 239000000203 mixture Substances 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 4
- 229920006327 polystyrene foam Polymers 0.000 claims 1
- 239000002689 soil Substances 0.000 abstract description 36
- 230000000694 effects Effects 0.000 abstract description 11
- 230000006378 damage Effects 0.000 abstract description 5
- 230000035699 permeability Effects 0.000 abstract description 4
- 238000012545 processing Methods 0.000 abstract description 4
- 238000001914 filtration Methods 0.000 abstract description 3
- 230000007423 decrease Effects 0.000 abstract 1
- 230000007547 defect Effects 0.000 abstract 1
- 239000002657 fibrous material Substances 0.000 abstract 1
- 239000002245 particle Substances 0.000 description 11
- 239000004746 geotextile Substances 0.000 description 7
- 239000012615 aggregate Substances 0.000 description 6
- 230000008901 benefit Effects 0.000 description 6
- 239000004567 concrete Substances 0.000 description 6
- 230000007774 longterm Effects 0.000 description 4
- 239000004575 stone Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000008595 infiltration Effects 0.000 description 3
- 238000001764 infiltration Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 239000004793 Polystyrene Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 229920002223 polystyrene Polymers 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 241001466460 Alveolata Species 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000008207 working material Substances 0.000 description 1
Landscapes
- Retaining Walls (AREA)
Abstract
The invention discloses a kind of cellularpiston composite water draining board and its construction method, the composite water draining board is the monoblock type composite construction that support rib rack-layer and permeable fiber are constituted, the support rib rack-layer is provided with for filling the circular spilled water hole of permeable fiber, filling hole of the aperture of the circular spilled water hole for 8mm, adjacent pitch of holes is 20mm, the permeable fiber is filled in the circular spilled water hole, and the fiber content in each circular spilled water hole is controlled in 0.008~0.01g.The present invention undertakes most of soil pressure as casing play using the higher plastic plate of compression strength, enhances the overall resistance to deformation damage capability of material;Fibrous material only receives less power in local, effectively prevent the defect of filtration material compressive deformation and the decline of anti-filter effect;Using the strong fiber of permeability, ensure that and good anti-filter performance is respectively provided with to all kinds soil, and be not susceptible to silting;Material light weight, processing mode are simple, without the need for template, reliable in quality.
Description
Technical field
The present invention relates to technical field of civil engineering, and in particular to a kind of cellularpiston composite water draining board and its construction party
Method.
Background technology
Loaded filter is set in the osculum of retaining wall, is acted primarily as infiltration draining, filtered the effect of soil conservation.Underground water and earth's surface
The infiltration of water can cause the ponding of the retaining wall rear portion soil body, form water pressure, when body of wall spilled water hole is unimpeded, easily form waterpower
Passage, sapping, the impact soil body, in making the soil body, part soil particle is taken away to form the seepage failures such as piping, stream soil by seepage water;If letting out
Water hole blocks, and the water in the wall back of the body soil body timely cannot be discharged, water content of soil increase, and substrate strength weakens significantly, in water
Under buoyancy and soil pressure effect, easily forming basesliding face causes barricade that settlement failure occurs, and side slope is larger may to be sent out
Raw-soil body integrally comes down, and causes retaining wall destruction and the generation of disaster.For retaining wall disease should ensure the water in the soil body and
When discharge, reduce water pressure, the loss also prevented by soil particle causes the unstable failure of soil structures.
At present, anti-filter layer material mainly has graded broken stone, geosynthetics, non-fine concrete, geotextiles package-level to match somebody with somebody
Rubble and capillary siphon drainage band, its pluses and minuses are described below:
(1) sandstone class loaded filter is made by materials such as the different sand of layer 2-4 particle diameter, rubble or cobbles, along vertical current side
To successively being put according to particle diameter from small to large, every layer of particle does not allow the hole through larger one layer of adjacent particle diameter, same layer
Particle do not produce relative movement yet, ensure soil particle by when do not taken away by current, the generation for preventing piping and stream native.Its
Advantage is that material source is convenient, and expense is relatively low, arranges form freedom, and non-deformability is strong, good endurance etc..But repair in highway
Build when the loaded filter of aggregate grading need to be set, generally require to increase volume of excavation, floor space and quantities, and aggregate grading
Construction technology it is considerably complicated, at different levels with more loose in construction, globality is poor, is easily also easy to produce quality by flowing water sapping and asks
Topic.In addition filter material level with arrange easily be subject to filter material particle size, level with the number of plies, thickness, Roadbed Soil type etc. because
The impact of element.
(2) geosynthetics has geotextile, a composite geosynthetics as anti-filter layer material in engineering,
Its effect mainly includes the aspects such as draining, anti-filter, isolation, reinforcement and protection.Meet that intensity is high, permeability is big in technical elements,
The characteristics of anti-filter performance and good drainage performance;In terms of production, with flow process it is short, quality is good, specification is more, low cost, purposes
Wide the characteristics of.But after as loaded filter, as the strength of materials is not enough, is affected with thickness by soil pressure, be easily caused material
Material effective drainage porosity changes, and situations such as make material silting occur, another aspect material will also receive soil body type, soil particle grain
Footpath, the impact of nonuniformity coefficient, it is impossible to choose suitable material.
(3) non-fine concrete is formed for blocking a kind of many of spilled water hole water inlet by coarse aggregate, cement and water mixing
Hole concrete material, it does not contain fine aggregate, is mutually bondd and formed hole and uniformly divide by coarse aggregate Surface coating thin layer cement mortar
Alveolate texture of the cloth similar to graded broken stone structure, has good water penetration, filters as loaded filter except possessing commonly to gather materials
Property feature outside, be also equipped with certain intensity, be not susceptible to seepage failure deformation, supporting construction convenient construction can be made.The material is not
Foot part is the process of grading of aggregates, and hole density is unimpeded with aperture passage to be difficult to grasp, and anti-filter performance cannot be ensured, in wall
Formwork erection, form removal difficulty are higher afterwards.
(4) geotextiles parcel rubble (or sand) with anti-filter geotextiles be fabricated to basal area it is more slightly larger than spilled water hole hole, long by 5~
The pocket of 10cm, fills graded broken stone (or sand) and tightens sack and fill in spilled water hole closure water inlet, and then backfill can shape
Into anti-filter Rotating fields.The material is had high demands to outer wrapping geotextiles as earth working material, and the performance of geotextiles is directly influenced
Whole anti-filter layer material, selection are difficult, larger by external interference, make troubles to construction as own vol is larger.
(5) capillary siphon drainage band is made up of PVC, wide about 20cm, thickness about 2mm, and in banding, inside is longitudinally continuous directly
Footpath is the round pipe of 1mm, is laid with groove below, and width only has 0.3mm.It is close to concrete surface or native face is laid, pipeline is downward,
By the capillarity of water in soil by groove intake line, pipeline is from bottom to top flowed through according to the principle of inverted-siphon and drained, soil
Due to being unable to antigravity and stream enters in groove, the material is exactly that nonwoven need not be wrapped up in surface with the difference of other materials to grain
Filtering soil, the water in pipe also will not return leakage to fabric because of surface tension.But it is to be used in that the weak point of the material is exactly
In the stronger soil body of capillarity, drainability is not strong, and use range has limitation.
Therefore, existing anti-filter layer material need to be improved.
The content of the invention
To solve the above problems, the invention provides a kind of cellularpiston composite water draining board and its construction method.
For achieving the above object, the technical scheme taken of the present invention is:
A kind of cellularpiston composite water draining board, the composite water draining board are the entirety that water proof casing play and permeable fiber are constituted
Formula composite construction, the water proof casing play are provided with for filling the circular spilled water hole of permeable fiber, the circular spilled water hole
Filling hole of the aperture for 8mm, adjacent pitch of holes is 20mm, and the permeable fiber is filled in the circular spilled water hole, each circle
Permeable fiber content in shape spilled water hole is controlled in 0.008~0.01g, uniform to fill, and can effectively play reverse filter effect, it is ensured that
Long-term effectiveness.
Wherein, the water proof casing play be extrusion molding polystyrene polyfoam (XPS) plate, compression strength >=250KPa.Rise
Skeleton function.
Wherein, the permeable material of the anti-filter is natural fiber, one or two mixtures of chemical fibre, it is ensured that good
Water penetration.
Wherein, the cellularpiston draining plate thickness is 1.5~1.8cm.
To solve the above problems, present invention also offers a kind of construction method of cellularpiston composite water draining board, including such as
Lower step:
S1, judgement soil body type, monitor its permeance property, determine the species of new material fiber;
S2, construction barricade, the finishing barricade wall back of the body;
S3, on barricade install sluicing hole connector;
S4, cellularpiston composite water draining board is fixed on into wall by rivet carries on the back at spilled water hole, size and shape is according to underground
Depending on the pattern of the water yield and osculum, it is adjacent between without the need for connection with single form exist;When such as needing large area to install, can basis
Required size machine-shaping, can make joint seal with rivet or hot melt in splicing;
S5, wall back of the body backfill.
The invention has the advantages that:
Most of soil pressure is undertaken using the higher plastic plate of compression strength, filtration material is enhanced only in local pressure
The resistance to deformation damage capability of material;Using the strong fiber of permeability, ensure that and good anti-filter is respectively provided with to all kinds soil
Performance, and it is not susceptible to silting;Material light weight, processing mode are simple, and can change material shape according to different demands is made with size
It is wide with scope;Easy construction, without the need for modeling, reliable in quality.
Description of the drawings
Structural plan schematic diagrames of the Fig. 1 for the embodiment of the present invention;
Section of structures of the Fig. 2 for the embodiment of the present invention.
Specific embodiment
In order that objects and advantages of the present invention become more apparent, with reference to embodiments the present invention is carried out further
Describe in detail.It should be appreciated that specific embodiment described herein is not used to limit this only to explain the present invention
It is bright.
As shown in Figure 1-2, a kind of cellularpiston composite water draining board is embodiments provided, the composite water draining board is
The monoblock type composite construction of water proof casing play 1 and the composition of permeable fiber 2, the water proof casing play 1 are provided with permeable for filling
The circular spilled water hole 3 of fiber, the aperture of the circular spilled water hole 3 are the filling hole of 8mm, and adjacent pitch of holes is 20mm, described
Water cellulose 2 is filled in the circular spilled water hole 3, the control of 2 content of permeable fiber in each circular spilled water hole 3 0.008~
0.01g, it is uniform to fill, can effectively play reverse filter effect, it is ensured that long-term effectiveness.
Water proof casing play 1 adopts a kind of flexible and semirigid extrusion molding polystyrene polyfoam with higher-strength
(XPS) plate, with certain intensity and anti-pressure ability, it is ensured that will not be torn or puncture because of the building piece by laying bricks or stones of barricade;Have
Hereinafter act on:
Soil pressure is prevented to fiber blocking alluvial caused by the destruction of fiberfill fibers;After preventing wall, the soil body is directly entered row
The soil body is caused to be lost in water hole;The water directly contact barricade in rock mass after wall is prevented, barricade is corroded.
Permeable fiber 2, can be made using natural fiber, chemical fibre, non-woven geotextile or several mixtures, preferably
Chemical fibre.In this example, in each circular spilled water hole, the content of fiber is controlled in 0.008~0.01g, uniform to fill, and can be had
What is imitated plays reverse filter effect, it is ensured that long-term effectiveness, has the effect that:
On the one hand it is anti-filter is permeable and prevents fine grained to be lost in effect, had both ensure that water in the soil body smoothly row of comb,
After wall can be prevented again, ground particle penetrates into permeable fiber and causes silting and affect the long-term effectiveness of loaded filter;On the other hand it is anti-
Only fine grain loss in the soil body after wall, causes the destruction reduction soil strength of emptying of soil structure to cause slope instability.
Circular spilled water hole 3 has enough discharge capacity and drainability, swimmingly the infiltration water after exclusion wall in the soil body
Amount, arranges processing major way to drill, and filling hole of the aperture for 8mm, adjacent pitch of holes are 20mm, arranges porosity and reaches
More than 80%, the compression strength for controlling material changes within 5%, it is ensured that enough non-deformabilities;Its effect is in skeleton
Good water stream channel is set up in structure sheaf and the soil body, it is ensured that current are flowed out along specific aperture, provided for permeable fiber in addition
Packing space, serves connection effect to the textural association of material.
Cellularpiston composite water draining board in this example, with certain bending resistance deformability, can preferably adapt to reality
The situation of change of barricade in the engineering of border, is brought into close contact domatic formation closed structure.
The embodiment of the present invention additionally provides the construction method of above-mentioned cellularpiston composite water draining board, comprises the steps:
1) construction barricade, repairs the wall back of the body of barricade;
Slope retaining wall is built according to design, in order to avoid water gap occurred in material and wall back contacts face, the wall back of the body should be rebuild
Make which smooth.
2) when installation sluicing hole connector on wall;
Arrange in corresponding position according to design specification and sluicing hole connector is installed.
3) cellularpiston composite water draining board is fixed on wall by rivet to carry on the back at spilled water hole, it is ensured that do not go out on both contact surfaces
Existing permeable crack, depending on size and shape is according to the pattern of osculum, it is adjacent between exist with single form without the need for connection;
4) wall back of the body backfill.
Originally, while being embodied in the advantage of holding conventional discharge loaded filter, the permeability and filterability of material are improved
Can, improve globality, compression strength, bending resistance deformability and the durability of anti-filter layer material structures, widely applicable, light weight
Just, it is readily transported, it is easy to construct, saves economical, ensure that the quality of construction, with extensive application value;Can be with
Suitable for various barricades, the construction of the setting of loaded filter to barricade is not affected, it is to avoid cause construction loaded down with trivial details and quality lacks
Fall into, accelerate the progress and efficiency of construction;The reliable in quality of the present invention, construction technology are simple, easy to operate, with stronger Jing
Ji benefit;The present invention is in terms of expense better than traditional sandstone material, geosynthetics, non-fine concrete.It is excellent in processing fermentation
In geosynthetics and non-fine concrete, with good social economy and technical benefits, can obtain surely promoting fortune well
With.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (4)
1. a kind of cellularpiston composite water draining board, it is characterised in that the composite water draining board is support rib rack-layer and permeable fiber
The monoblock type composite construction of composition, the support rib rack-layer are provided with for filling the circular permeable hole of permeable fiber, the circle
The aperture of shape permeable hole is 8mm, and adjacent pitch of holes is 20mm, and the permeable fiber is filled in the circular permeable hole, each
Permeable fiber content in circular permeable hole is controlled in 0.008~0.01g.
2. a kind of cellularpiston composite water draining board according to claim 1, it is characterised in that the support rib rack-layer is crowded
Modeling polystyrene foam plastics (XPS) plate, compression strength >=250KPa.
3. a kind of cellularpiston composite water draining board according to claim 1, it is characterised in that the material of the permeable fiber
For natural fiber, one or two mixtures of chemical fibre.
4. a kind of cellularpiston composite water draining board according to claim 1, it is characterised in that the cellularpiston drain bar
Thickness is 1.5~1.8cm.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201510421030.4A CN105113483B (en) | 2015-07-17 | 2015-07-17 | A kind of cellularpiston composite water draining board and its construction method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201510421030.4A CN105113483B (en) | 2015-07-17 | 2015-07-17 | A kind of cellularpiston composite water draining board and its construction method |
Publications (2)
Publication Number | Publication Date |
---|---|
CN105113483A CN105113483A (en) | 2015-12-02 |
CN105113483B true CN105113483B (en) | 2017-03-29 |
Family
ID=54661575
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201510421030.4A Expired - Fee Related CN105113483B (en) | 2015-07-17 | 2015-07-17 | A kind of cellularpiston composite water draining board and its construction method |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN105113483B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107542082A (en) * | 2017-09-11 | 2018-01-05 | 安徽中路工程材料有限公司 | A kind of cellular composite water draining board |
CN112962516B (en) * | 2021-02-23 | 2022-06-03 | 河海大学 | Design and construction method of danger-removing reinforcement measure for inhibiting dike foundation piping |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100492818B1 (en) * | 2004-11-24 | 2005-06-02 | 지호열 | Core plate of a drain board for solidifying a soft ground and its installation way |
CN1883935A (en) * | 2005-06-22 | 2006-12-27 | 张大忠 | Honeycomb type water storage and drainage plate |
CN201148611Y (en) * | 2008-01-15 | 2008-11-12 | 邓斌斌 | Water drain plate |
CN201649280U (en) * | 2010-03-08 | 2010-11-24 | 汕头市合盛贸易有限公司 | Macromolecule resin permeable deodorization cover plate |
CN202881963U (en) * | 2012-10-17 | 2013-04-17 | 武汉市政工程设计研究院有限责任公司 | Inverted filter device for water drainage of retaining wall |
CN203603174U (en) * | 2013-12-09 | 2014-05-21 | 中建八局第三建设有限公司 | Waterproof structure in basement top slab descending area |
-
2015
- 2015-07-17 CN CN201510421030.4A patent/CN105113483B/en not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100492818B1 (en) * | 2004-11-24 | 2005-06-02 | 지호열 | Core plate of a drain board for solidifying a soft ground and its installation way |
CN1883935A (en) * | 2005-06-22 | 2006-12-27 | 张大忠 | Honeycomb type water storage and drainage plate |
CN201148611Y (en) * | 2008-01-15 | 2008-11-12 | 邓斌斌 | Water drain plate |
CN201649280U (en) * | 2010-03-08 | 2010-11-24 | 汕头市合盛贸易有限公司 | Macromolecule resin permeable deodorization cover plate |
CN202881963U (en) * | 2012-10-17 | 2013-04-17 | 武汉市政工程设计研究院有限责任公司 | Inverted filter device for water drainage of retaining wall |
CN203603174U (en) * | 2013-12-09 | 2014-05-21 | 中建八局第三建设有限公司 | Waterproof structure in basement top slab descending area |
Also Published As
Publication number | Publication date |
---|---|
CN105113483A (en) | 2015-12-02 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN206928164U (en) | A kind of drainage type concrete road | |
CN110241673A (en) | A kind of town road structure and its construction method | |
CN102644288B (en) | A kind of construction method saving the anhydrous Tailings Dam of clean and safe | |
CN105239485B (en) | Water drainage curb and the asphalt roads with discharge structure | |
CN110158389A (en) | A kind of light soil road structure and its construction method | |
CN210216254U (en) | Concrete guardrail structure | |
CN108457249A (en) | A kind of structure design and construction method of novel composite panel sand-gravel dam | |
CN110820720A (en) | Water-blocking and drainage-resisting anti-floating construction structure and method | |
CN111424702B (en) | Integrated water drainage pipe structure and construction method | |
CN209958165U (en) | Assembled gap permeable pavement | |
CN103321258B (en) | PFF integral composite reversed filtering layer and construction method thereof | |
CN105113483B (en) | A kind of cellularpiston composite water draining board and its construction method | |
CN202627166U (en) | Novel water-discharging ecological zone for town road | |
CN203716064U (en) | Roadbed sewer convenient for dredging | |
CN210085980U (en) | Ecological protection structure of side natural high slope of pavement | |
CN210684359U (en) | Road bed is used in road and bridge construction | |
CN218148458U (en) | Deep water deep foundation pit drainage system of fissure development rock stratum | |
CN105735206A (en) | Repair structure and construction method of pathological concrete gravity dam in severe cold area | |
CN216275518U (en) | Reinforcing and reinforcing structure of clay core rockfill dam | |
CN205711985U (en) | The reparation structure of severe cold area morbid state concrete gravity dam | |
CN113062297A (en) | Alkali system is arranged in sponge city saline and alkaline land | |
CN114775699A (en) | Post-cast strip structure and construction method thereof | |
CN204849796U (en) | Novel compound drain bar of honeycomb plastics | |
CN211143046U (en) | Water-blocking and draining anti-floating construction structure | |
CN208762998U (en) | Composite, water-drain isolating pad, bedding waterproof/drainage structure and side slope are layered waterproof/drainage structure |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant | ||
TR01 | Transfer of patent right |
Effective date of registration: 20180327 Address after: 710077 Shaanxi Xi'an hi tech Zone unity South Road No. 32, space science and technology, military and civilian integration innovation center 6 Building Patentee after: XI'AN WEIMI DISASTER PREVENTION TECHNOLOGY CO.,LTD. Address before: 710064, building No. 2, Changan South Road, Shaanxi, No. 9, 3-1101 Patentee before: Li Jiachun |
|
TR01 | Transfer of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170329 |
|
CF01 | Termination of patent right due to non-payment of annual fee |