CN101622931B - Greening sloping surface for rock side slope facing wall and construction method thereof - Google Patents

Greening sloping surface for rock side slope facing wall and construction method thereof Download PDF

Info

Publication number
CN101622931B
CN101622931B CN2008100631003A CN200810063100A CN101622931B CN 101622931 B CN101622931 B CN 101622931B CN 2008100631003 A CN2008100631003 A CN 2008100631003A CN 200810063100 A CN200810063100 A CN 200810063100A CN 101622931 B CN101622931 B CN 101622931B
Authority
CN
China
Prior art keywords
plant
facing
hole
plant hole
water
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
Application number
CN2008100631003A
Other languages
Chinese (zh)
Other versions
CN101622931A (en
Inventor
杨仲元
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Institute of Communications
Original Assignee
Zhejiang Institute of Communications
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Zhejiang Institute of Communications filed Critical Zhejiang Institute of Communications
Priority to CN2008100631003A priority Critical patent/CN101622931B/en
Publication of CN101622931A publication Critical patent/CN101622931A/en
Application granted granted Critical
Publication of CN101622931B publication Critical patent/CN101622931B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
    • Y02A40/25Greenhouse technology, e.g. cooling systems therefor

Abstract

The invention relates to a greening sloping surface for a rock side slope facing wall and a construction method thereof. The facing wall is provided with a run-through plant hole which is corresponding to a cavity preset on a rock side slope and used for growing plant root system, wherein a plant base material is arranged in the cavity; a water storage tank capable of storing water is arranged below the bottom of the plant hole, gravels are filled in the water storage tank and are covered with a water-permeable geotextile; the surface of the facing surface is provided with a flow guiding ditch for guiding flow to the plant hole; and a spilled water hole running through the facing wall is arranged below the plant hole, and the spilled water hole is communicated with the water storage tank. The greening sloping surface has the advantages of water collection function, stable sloping surface, and simple and easy construction.

Description

Domatic and the construction method of the greening of rocky slope facing wall
(1) technical field
The present invention relates to a kind of domatic and construction method of greening of rocky slope facing wall.
(2) background technology
In recent years; Construction development along with China's the five vertical and seven horizontal national trunk highways, western inter-provincial passage, national freeway net etc.; The highway in China total kilometrage has obtained increasing substantially; Simultaneously, for large tracts of land mountain region excavation, hillside vegetation deterioration, the soil erosion problem of rural area, brought influence quite to a certain degree for highway construction zone, place; Bring suitable difficulty and pressure for the protection of ecotope and land resources, increased many unfavorable factors for the sustainable development of traffic capital construction.Therefore, in the highway rapid and healthy, ecological protection and greening side slope technology seem more and more important.
Particularly rocky slope, high rigidity soil-slope, abrupt slope side slope, the condition of no plant growing.For these side slopes; The general concrete for plant growth that adopts is afforested during greening, and method is on rocky slope, to hang earlier net, at the concrete for plant growth that contains grass seeds that adopts special formulation; Be ejected on the rock slope with spray windlass tool equipment and technology; After concrete for plant growth condensed on the rock slope, grass seeds therefrom grew, and covered domatic.Because side slope, particularly precipitous rocky slope, soil layer is barren, and moisture is difficult for preserving, and plant is difficult to root.
In addition, owing to rocky slope, abrupt slope side slope, the self-support condition on its hillside is relatively poor, and the ground rate of decay is also comparatively serious, facing wall often need be set carry out consolidation process.If strip, large-area facing wall expose on the face of hillside, ecological environment problems such as hillside skin-grafting destruction, soil erosion appear to a great extent.Therefore, how facing wall is implemented the greening processing and seem very important.
(3) summary of the invention
In order to solve the problem that plant that existing rocky slope caused because of no soil layer condition, moisture are difficult for preserving is difficult to grow, the present invention proposes a kind of domatic and construction method of greening of rocky slope facing wall.
The greening of rocky slope facing wall of the present invention is domatic; Comprise the facing wall 1 that covers rock layer surface; It is characterized in that: the plant hole that has perforation on the described facing wall; Described plant hole has in the described cavity and plants living base material corresponding to being arranged on cavity on the rocky slope, that be used for plant root growth in advance; The arranged beneath of bottom, said plant hole can be preserved the hopper of moisture content, and rubble is housed in the hopper, is coated with the water penetration geotextiles on the rubble; The surface of said facing wall is provided with the curb to described plant hole water conservancy diversion; Below, plant hole is provided with the spilled water hole that connects facing wall, and described spilled water hole is communicated with described hopper.
The domatic construction method of the greening of rocky slope facing wall is following: (1) is on the side slope behind the excavation, and is consistent with the arrangement interval of barricade spilled water hole 9, the cavity 3 of excavation certain size; (2) hopper 8 is built in the bottom in cavity 3; (3) fill up rubble 11 at hopper 8; (4) the water penetration geotextiles 13 that paves; (5) construction lofting of facing wall 1 and survey are established; (6) the fixing pvc pipe φ 100 of the pvc pipe φ 150 in plant hole 6, spilled water hole 9, the gradient of noting plant hole 6 be setting towards the inboard; (7) build or build by laying bricks or stones facing wall 1, if facing wall 1 need be wiped one's face to metope for grouting retaining wall; (8) on the surface of facing wall 1 curb 7 is set, this operational procedure should be implemented jointing when concrete or mortar are also unhardened; (9) the wall top concreting of facing wall 1, the setting of gutter 10, the installation setting of other affiliated facilities; (10) seedling of plant 5 is cultivated, and this operation is cultivated the place vegetation and implemented, and can carry out simultaneously with the front operation, overcoat 14 is placed on above the chassis 15 of plastic products, will plant living base material 12 and put into overcoat 14, and the sowing seed is also cultivated; (11) root system of plant 4 is put into plant hole 6 with cultivating good plant 5, and is removed overcoat 14 in plant hole 6, and the cultivation soil of available preparation is filled up the space in plant hole 6 as required; (12) the suitable water yield of 6 pourings toward the plant hole; (13) to carrying out compacting around the plant hole 6; (14) plant 5 became to live in a couple of days, can grow at the metope vertical spread subsequently.
Domatic and the construction method of the greening of rocky slope facing wall of the present invention; Said facing wall is a concrete body newly-built or reconstruction, described greening technique be on slope revetment cultivation some can be easily and spread over the plant of concrete facing wall chronically.
Technical conceive of the present invention is: on rocky slope, lay the cavity of certain intervals earlier, described cavity can supply plant root growth, has the certain space size.Before the casting of concrete facing wall, reserve the plant hole in empty horizontal direction, facing wall is run through in said plant hole.After the casting of concrete facing wall, the seedling of indoor cultivation is put into the plant hole with cultivating soil.The surface of facing wall is provided with the curb that flows to the plant hole, compiles current during rainfall and preserves at hopper, and the unnecessary water in the full back of hopper storage can overflow, and gets rid of from osculum.The hopper with storage water yield is installed in the bottom in said cavity, when rainfall, compiles and preserves certain water yield, for plant is supplied necessary moisture content for a long time.
Beneficial effect of the present invention is: make facing wall superficial growth plant, and possess the function of catchmenting and storing the water yield, make the root system of plant can long-term job in rock matter layer, the seedling of plant can the outside long-term job from the plant hole, and spreads on the facing wall surface.
(4) description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 has the groove that compiles and store water yield function.
Fig. 3 is plant hole substructure figure.
Fig. 4 cultivates the seedling organigram.
Fig. 5 is the facing wall surface greening condition diagram after apparatus of the present invention are provided with.
(5) embodiment
Below in conjunction with accompanying drawing the present invention is done further explanation.
With reference to Fig. 1: the slope greening of rocky slope facing wall and construction method; Said facing wall 1 is for covering various soft rock stratums, medium weathering with mantlerock or than the excavation side slope of fractured rock; The body of wall of avoiding the natural conditions factor affecting and building, what comprise highway engineering and civil engineering grouts retaining wall, concrete retaining wall.Said facing wall more than 1 is used for the heavier soft rock stratum and the broken rock stratum 2 of green mud slabstone, shale face rock, phyllite, mica schist and weathering thereof of easy-weathering.During the highway construction of mountain terrain and town planning were built, most rocks location all need adopt said facing wall to carry out slope protection and reinforcing.
Said facing wall 1 does not bear other loads except that deadweight, do not bear wall back of the body soil pressure yet, so the side slope of required protection should meet the requirement of limit stability side slope, the gradient should not be suddenly in 1: 0.5.The basis of said facing wall 1 should be embedded in the stable ground, and buried depth should be confirmed by geological conditions.General buried depth is more than the 1.0m, and frost region should be not less than 0.25m below frost penetration.
On rocky slope, lay the cavity 3 of certain intervals, said empty 3 supplied root system of plant, 4 growths have the certain space size.The cross dimensions in cavity 3 is thought of as the rectangular configuration of long 0.40m * wide 0.40m * high 0.40m, and the degree of depth generally can suitably be widened and increase according to plant 5 kinds.Grout or concrete facing wall casting before, reserve plant hole 6 in the horizontal direction in cavity 3, to run through facing wall 1.
The size in said plant hole 6 must be considered the growth of plant 5, and section configuration is set to the round plastic pipe of internal diameter 0.15m.Said round plastic pipe adopts to have enough compression strength and cuts easy draining pvc pipe.Because the thickness of facing wall 1 does not wait, the length in plant hole 6 is also according to the be provided with position of plant hole 6 at facing wall 1 place, is consistent with the thickness of facing wall 1.Plant hole 6 is set to 1: 15~and 20 inboard flows to the gradient, mainly is for the water of considering curb 7 can get into plant hole 6, and flow to hopper 8 and store.
Shown in Fig. 1-2, metope requires to be close to domatic, whenever the wide expansion joint of 2cm is set together at a distance from 10~15m, and every at a distance from 2~3m spilled water hole 9 arranged in a crossed manner, aperture 10cm.Spilled water hole 9 adopts pvc pipe, and the insulated stream that infiltrates from the surface, hillside during rainfall can be discharged outside the wall through spilled water hole 9, and utilize gutter 10 to compile and draining to the wall back of the body of facing wall 1.
With reference to Fig. 2-3: the surface of said facing wall is provided with the curb 7 that flows to plant hole 6.Curb 7 is triangular in shape, in the facing wall wall construction, puts into the surface of facing wall 1 with the triangle batten.When facing wall 1 is concrete guard wall, answer fixed triangle shape batten on the template of facing wall metope; Facing wall is when grouting barricade, and the metope jointing is carried out in the processing of must wiping one's face on the barricade surface subsequently, and the curb 7 of outstanding barricade surface certain depth is ticked in jointing with the M7.5 mortar.Curb 7 should not be very dark, generally adopts 1~2cm.
When facing wall 1 was concrete, curb 7 was set to 45 ° at the friendship degree of metope, helped compiling and pointing to plant hole 6 of rainfall water.Facing wall 1 is when grouting, and it is 1: 10~15 that curb 7 is provided with the gradient in the horizontal direction of metope.
Said empty 3 bottom is compiled current and is preserved at hopper 8 when rainfall is set, can overflow after hopper 8 storages are full and get rid of from osculum.Hopper 8 is trapezoidal, before facing wall construction by concreting.The size of hopper 8 can be decided according to actual conditions, generally adopts L300 * B300 * H200.Store in hopper 8 in order to ensure rainfall water, after hopper 8 casting, put into the rubble 11 of diameter 2~6cm.
Reserve a certain size plant hole 6 in the place of facing wall 1, put in the described plant hole 6 and plant living base material 12, green plants 5 can be taken root in base material 12.After facing wall 1 casting, the plant 5 (seedling) of indoor cultivation is put into plant hole 6 with planting living base material 12.
When rainfall comes together in plant hole 6, and when surpassing the water storage capacity of hopper 8, a part of water yield (when rainfall is little) is through water penetration geotextiles 13, flows to the spilled water hole that is positioned at the below and gets rid of; The opposing party's part (when rainfall is big) also can directly flow out through plant hole 6.In order to prevent that the plant in the plant hole 6 is rushed out outside the hole, the inboard gradient in plant hole 6 is unsuitable too small, considers 1: 10~15 as far as possible.Water penetration geotextiles 13 be laid in rubble 11 above, not only the particle gap of rubble 11 can hold a large amount of rainwater, and can not make and plant living base material 12 and get into hoppers 8 and stop up rubble 11 spaces, thereby improves and guarantee the water storage capacity of hopper 8.
Shown in Figure 4, the said living base material 12 of planting is for helping the cultivation soil of plant 6 growths, and in cultivating soil 12, adds suitable soil conditioner, controlled-release fertilizer.When plant seedlings is cultivated in vegetation cultivation place, use pvc pipe to be overcoat 14, overcoat 14 is placed on above the chassis 15 of plastic products.The kind fibrous root of plant 5 descends principle to select for use according to this: (1) is preferentially selected local vegetation kind for use; (2) select caulis for use, like parthenocissus, the stem pith of the rice-paper plant, reticulate millettia, mountain ebony, the fragrant rattan of garlic, the string string heart, thunderclap litchi etc.
With reference to Fig. 5: plant hole 6 arranged crosswise on facing wall 1, spilled water hole plant hole 6 below.The seedling of plant is after indoor cultivation; Put into the plant hole 6 of reservation; Guarantee the moisture content and the nutriment of plant growing in 6 bottoms, plant hole, can carry out surface greening, also improve skin-grafting destruction in hillside behind the excavation that highway construction and town planning construction bring, soil erosion problem simultaneously at facing wall; Fundamentally solve precipitous rocky slope, the barren greening technique difficulty of soil layer, protected ecotope and land resources.
In sum; The greening of rocky slope facing wall of the present invention is domatic; Comprise the facing wall 1 that covers rock layer surface; Have the plant hole 6 of perforation on the described facing wall 1, described plant hole 6 is corresponding to being arranged on cavity 3 on the rocky slope, that be used for plant root growth in advance, has in described empty 3 and plants living base material 12; The arranged beneath of 6 bottoms, said plant hole can be preserved the hopper 8 of moisture content, and rubble 11 is housed in the hopper 8, is coated with water penetration geotextiles 13 on the rubble 11; The surface of said facing wall 1 is provided with the curb 7 to described plant hole 6 water conservancy diversion; 6 belows, plant hole are provided with the spilled water hole 9 that connects facing wall, and described spilled water hole 9 is communicated with described hopper 8.
The domatic construction method of the greening of rocky slope facing wall is following: (1) is on the side slope behind the excavation, and is consistent with the arrangement interval of barricade spilled water hole 9, the cavity 3 of excavation certain size; (2) hopper 8 is built in the bottom in cavity 3; (3) fill up rubble 11 at hopper 8; (4) the water penetration geotextiles 13 that paves; (5) construction lofting of facing wall 1 and survey are established; (6) the fixing pvc pipe φ 100 of the pvc pipe φ 150 in plant hole 6, spilled water hole 9, the gradient of noting plant hole 6 be setting towards the inboard; (7) build or build by laying bricks or stones facing wall 1, if facing wall 1 need be wiped one's face to metope for grouting retaining wall; (8) on the surface of facing wall 1 curb 7 is set, this operational procedure should be implemented jointing when concrete or mortar are also unhardened; (9) the wall top concreting of facing wall 1, the setting of gutter 10, the installation setting of other affiliated facilities; (10) seedling of plant 5 is cultivated, and this operation is cultivated the place vegetation and implemented, and can carry out simultaneously with the front operation, overcoat 14 is placed on above the chassis 15 of plastic products, will plant living base material 12 and put into overcoat 14, and the sowing seed is also cultivated; (11) root system of plant 4 is put into plant hole 6 with cultivating good plant 5, and is removed overcoat 14 in plant hole 6, and the cultivation soil of available preparation is filled up the space in plant hole 6 as required; (12) the suitable water yield of 6 pourings toward the plant hole; (13) to carrying out compacting around the plant hole 6; (14) plant 5 became to live in a couple of days, can grow at the metope vertical spread subsequently.
The described content of this specification embodiment only is enumerating the way of realization of inventive concept; Should not being regarded as of protection scope of the present invention only limits to the concrete form that embodiment states, protection scope of the present invention also reach in those skilled in the art conceive according to the present invention the equivalent technologies means that can expect.

Claims (2)

1. the greening of rocky slope facing wall is domatic; Comprise the facing wall that covers rock layer surface; It is characterized in that: the plant hole that has perforation on the described facing wall; Described plant hole has in the described cavity and plants living base material corresponding to being arranged on cavity on the rocky slope, that be used for plant root growth in advance; The arranged beneath of bottom, said plant hole can be preserved the hopper of moisture content, and rubble is housed in the hopper, is coated with the water penetration geotextiles on the rubble; The surface of said facing wall is provided with the curb to described plant hole water conservancy diversion; Below, plant hole is provided with the spilled water hole that connects facing wall, and described spilled water hole is communicated with described hopper.
2. the domatic construction method of the greening of rocky slope facing wall as claimed in claim 1 is following:
(1) on the side slope behind the excavation, consistent with the arrangement interval of barricade spilled water hole, the cavity of excavation certain size;
(2) hopper is built in the bottom in cavity;
(3) fill up rubble at hopper;
(4) the water penetration geotextiles that paves;
(5) construction lofting of facing wall and survey are established;
(6) the fixing pvc pipe φ 100 of the pvc pipe φ 150 in plant hole, spilled water hole, the gradient of noting the plant hole be setting towards the inboard;
(7) build or build by laying bricks or stones facing wall, if facing wall need be wiped one's face to metope for grouting retaining wall;
(8) on the surface of facing wall curb is set, this operational procedure should be implemented jointing when concrete or mortar are also unhardened;
(9) the wall top concreting of facing wall, the setting of gutter, the installation setting of other affiliated facilities;
(10) seedling of plant is cultivated, and this operation is cultivated the place vegetation and implemented, and carries out simultaneously with the front operation, above the chassis that is mounted on plastic products outward, will plant living base material and put into overcoat, and the sowing seed is also cultivated;
(11) root system of plant is put into the plant hole with cultivating good plant, and is removed overcoat in the plant hole, and the cultivation soil of available preparation is filled up the space in plant hole as required;
(12) the suitable water yield of pouring toward the plant hole;
(13) to carrying out compacting around the plant hole;
(14) plant became to live in a couple of days, can grow at the metope vertical spread subsequently.
CN2008100631003A 2008-07-10 2008-07-10 Greening sloping surface for rock side slope facing wall and construction method thereof Expired - Fee Related CN101622931B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2008100631003A CN101622931B (en) 2008-07-10 2008-07-10 Greening sloping surface for rock side slope facing wall and construction method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2008100631003A CN101622931B (en) 2008-07-10 2008-07-10 Greening sloping surface for rock side slope facing wall and construction method thereof

Publications (2)

Publication Number Publication Date
CN101622931A CN101622931A (en) 2010-01-13
CN101622931B true CN101622931B (en) 2012-03-21

Family

ID=41519044

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2008100631003A Expired - Fee Related CN101622931B (en) 2008-07-10 2008-07-10 Greening sloping surface for rock side slope facing wall and construction method thereof

Country Status (1)

Country Link
CN (1) CN101622931B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102199921B (en) * 2010-03-26 2013-02-27 中国科学院华南植物园 Method for greening semi-weathered rocky side slope by using indigenous plants
CN102444134B (en) * 2011-10-09 2013-10-30 东南大学 Slope protecting method based on slope with soil layer as upper part and rock layer as lower part
CN103981838B (en) * 2014-06-10 2015-10-07 广州怡境景观设计有限公司 A kind of bank protection construction method
CN104429690A (en) * 2014-11-18 2015-03-25 成都格瑞思文化传播有限公司 Landscaping wall structure
CN105706768A (en) * 2016-01-29 2016-06-29 宏大国源(芜湖)资源环境治理有限公司 Greening and maintaining device of slope low retaining wall
CN106958264A (en) * 2016-07-14 2017-07-18 宁波海逸园林工程有限公司 A kind of highway greenbelt and its construction method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007303251A (en) * 2006-05-15 2007-11-22 Landes Co Ltd Construction method for greening accelerating retaining wall and bypass member used in the method
CN101213908A (en) * 2007-12-29 2008-07-09 浙江交通职业技术学院 Rock slope greening method and its special-purpose equipment

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007303251A (en) * 2006-05-15 2007-11-22 Landes Co Ltd Construction method for greening accelerating retaining wall and bypass member used in the method
CN101213908A (en) * 2007-12-29 2008-07-09 浙江交通职业技术学院 Rock slope greening method and its special-purpose equipment

Also Published As

Publication number Publication date
CN101622931A (en) 2010-01-13

Similar Documents

Publication Publication Date Title
CN101818499B (en) Revegetation system on steep rocky slopes and implementing method thereof
CN104314087B (en) A kind of side-slope greening and protection structure and construction method thereof
CN105484275B (en) A kind of high steep waste side slope reinforcement anchoring Ecosystem restoration system of mountain area wind power plant
CN203403426U (en) Supporting structure of expensive earth road cutting side slope
CN101622931B (en) Greening sloping surface for rock side slope facing wall and construction method thereof
CN101451355B (en) Water retention method of back fill course
CN103410159A (en) Expansive soil cut slope support structure and construction method thereof
CN104563070B (en) A kind of hillside fields rainwater-collecting gravity irrigation system and its construction method on the spot
CN101213910A (en) Method for using gridding plant biological bag to process greening slope
CN107100176B (en) A kind of expressway slope greening system
CN105625443B (en) A kind of high abrupt slope soil nailing grass planting protective slope structure system and its construction method
CN102612883B (en) Saline discharge and alkali reduction concealed conduit device for saline-alkali soil
CN201972156U (en) Slope protection system with stereoscopic afforestation vegetation cushions
CN103993606B (en) A kind of stereoscopic protective method of soft side slope
CN107893422B (en) A kind of reinforcement type ecological slope protection structure and its construction method
CN201826318U (en) Simple ecological slope protecting structure for loose soil of road
CN105850261B (en) A kind of sloping field type salt-soda soil collection rain desalinization of soil by flooding or leaching system
CN102605793A (en) Moisture transfer and ecological management method for loess slope
CN207295737U (en) Suitable for the ecological revetment system in plateau mountainous region
CN204014608U (en) A kind of sash beam greening side slope facility
CN205475264U (en) High sediment side slope of abandoning suddenly in mountain area wind -powered electricity generation field adds muscle anchor ecological remediation structure
CN100381035C (en) Soil salt unidirectional down-moving method for treatment of saline alkaline land
CN103362135B (en) Fang Beng hilllock, protect water and soil net grass bank protection
CN201258489Y (en) Blind drainage arch beam for reinforcing slope
CN207525721U (en) A kind of eco-drainage ditch 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
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120321

Termination date: 20120710