CN103334407A - Pinch planting technology for eleusine indica slope protection of earth dam - Google Patents
Pinch planting technology for eleusine indica slope protection of earth dam Download PDFInfo
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- CN103334407A CN103334407A CN2013102976199A CN201310297619A CN103334407A CN 103334407 A CN103334407 A CN 103334407A CN 2013102976199 A CN2013102976199 A CN 2013102976199A CN 201310297619 A CN201310297619 A CN 201310297619A CN 103334407 A CN103334407 A CN 103334407A
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Abstract
The invention relates to an earth dam, in particular to a technology which is used for withstanding scouring of rainwater, water flood and wind and wave in the earth dam such as water conservancy project embankment and cofferdams and belongs to the technical field of water and soil conservation of a water conservancy project. According to the pinch planting technology, after a dam slope and dam abutments are ready, horizontal lines are lined out on the dam abutment and the dam slop in the direction of the axis of a dam, the horizontal lines are marked with lime lines, the distance between every two horizontal lines is ensured, namely, the line spacing is 15-30cm, the planting position of each pinch of the eleusine indica is measured from the first horizontal line arranged in the junction position between the dam crest portion and the dam abutment according to the line spacing being 15-30cm, and the planting position of each pinch of eleusine indica is marked with cross-shaped lime lines. Based on the planting position that half pinch distance (7.5cm-15cm) is staggered between every two adjacent lines, the positions of the eleusine indica to be planted are marked in horizontal lines in sequence. After the planting positions are marked, pits can be dug manually (the depth of each pit is 10-15cm), and pinches of the elecusine indica are planted in the pits manually respectively.
Description
Technical field
Plant technology for a kind of pinch that the present invention relates to earth dam bar root grass bank protection, be specifically related to soil property dams such as a kind of hydraulic engineering dyke, cofferdam and keep out rainwater, flood, stormy waves and wash away technology, belong to hydraulic engineering conservation technology field.
Background technology
After earth dam fills and finishes, its upstream batter, dam abutment, downstream slope, or after adopting concrete, stone paving below the upstream batter design flood level, connect high dam slope, dam abutment and downstream slope on it, generally all need to do engineering measures of soil and water conservation, wash away earth dam to alleviate rainwater, flood, stormy waves, particularly will prevent big drench with rain coombe and scour avalanche the earth dam structure is damaged, guarantee that earth dam keeps former design section size and do not reduce, guarantee engineering safety.
Current dyke, cofferdam erosion and torrent control works generally have two kinds of methods:
The one, lay divot.This method is exactly in advance on request at the plantation of special place, maintenance turf, after treating that the earth dam construction is finished, turf is cut into the divot (size can be 30cm * 30cm, and cutting-in is advisable not destroy root system) of root band soil, through preserve moisture, solar heat protection, be transported to the job site.After job site preparation is finished, can or there be the line-spacing in 0～10cm gap and the structure of piece distance to lay divot by no gap between divot, namely upwards follow closely the shop from the base of dam place, with little picket or bamboo let divot is solid on the dam slope.Spray after the laying and water, apply fertilizer maintenance.
This method has following several drawback: the one, and the cost height at first needs to take over for use the plantation of special place, maintenance turf, must preserve moisture, solar heat protection, transportation last artificial the laying then.The land acquisition area is wide, operation is many, input manpower quantity is big, the expense height: the 2nd, if earth dam engineering battle line is long, the turf demand is too big, expropriation of land, turf plantation and maintenance difficulty are big, tend to occur the turf situation that supply falls short of demand, thereby influence the performance early of earth dam major project design function; The 3rd, continuous 6 months growth time of taking root that needs at least in the soil between mid-March to mid-September is implanted in divot coring growth, bigger because of the deadweight of divot band soil again, therefore, although the fixing of little picket or bamboo let arranged when laying, but after the rainwater, the wet soft divot weight of dam slope face soil increases, divot is still easily along the downward landing of dam slope, becoming flexible of coring, come off and cause the lengthening of strong bonded time fully between divot and dam slope soil, therefore, for completion be badly in need of soon bearing the dyke of flood control dash task and under water dashing of square mud emission place fill out the cofferdam, district, this bank protection mode is very difficult in time to play a role.
The 2nd, broadcast sowing grass seeds.Adopt the machinery technology of sowing grass seeds by duster, grass-seed and the mixed fertilizer that adopts mixed and stirred, broadcast sowing equably and be ready on dam slope, the dam abutment, in 24 hours, with special-purpose machines and tools compacting gently, water immediately.
This method also has its unfavorable aspect: the one, and grass-seed is too light, is easily washed away by rainwater after broadcasting sowing, and therefore, needs to cover with careless grid, and material and artificial a large amount of inputs cause the initial stage construction cost to rise; The 2nd, the gas permeability of careless grid is poor, when growing tender shoots, grass-seed must throw off careless grid, in case tender shoots is sealed extremely, be conducive to tender shoots growth fast in the sun, but, hot sunlight makes soil water evaporation too fast again, untimely if sprinkle water, tender shoots easily is exposed to the sun deadly again, therefore, must grasp the soil water evaporation situation at any time, cover the maintenance of sprinkling water of careless grid in good time and (prevent that grass-seed is flushed away, tender shoots is fractureed by current),, broadcast sowing in early days grass-seed for this reason, need " cover the careless grid of careless grid of careless grid → take off → cover again → take off again careless grid " like this repeatable operation repeatedly thereby cause later stage maintenance difficulty and expense too high; The 3rd, the grass-seed growth is slower, and the time that possesses dash, wave resistance, antiscour function is long, no matter when plants, and generally is difficult to reach the effect of designing requirement then.
Summary of the invention
The objective of the invention is for overcoming above-mentioned the deficiencies in the prior art part, provide a kind of wild bar root grass (also cry bar mud grass) pinch to plant structure technology earth dams such as dyke, cofferdam are effectively protected.This technology is by according to certain line-spacing with pinch apart from structure, plant at dam slope, dam abutment and to bury pugil and scoop up Ba Gencao, again through watering, fertilising maintenance, the flourishing coring of bar root grass extends rapidly among dam abutment, dam slope soil, breeds and vigorous growth, thereby form a unlimited deep-rooted coring network that stretches, whole dam slope, dam abutment earth of planting in the scope of burying is firmly clung to, and its dense stem, leaf then cover whole dam slope, dam abutment, thus played stop rainwater, flood and mud, stormy waves wash away, wash in a pan the erosion effect.
The present invention realizes with following technical scheme: after dam slope, dam abutment are ready to, the longitudinal dike axis direction, get a lot of horizon and use the lime wire tag at dam abutment, dam slope face, guarantee the adjacent horizontal spacing of every two-phase, be that line-spacing is 15cm～30cm, again from article one horizon of dam crest road and dam abutment junction, press pinch spacing apart from 15cm～30cm, measure planting of every pinch of bar root grass and bury the position, and with cross lime wire tag.(position is buried in planting of 7.5cm～15cm), begins to the base of dam direction from dam abutment, marks at every horizon successively and waits to plant the position of burying Ba Gencao according to the half pinch of distance that staggers between the adjacent lines then.All plant bury position mark good after, can arrange artificial dig the hole (degree of depth 10～15cm) is implanted to respectively one by one in the heatable adobe sleeping platform by manually pugil being scooped up bar root grass then, with coring bury, closely knit, back watering, fertilising maintenance.
Advantage of the present invention is:
The one, cost is low.At first, pinch plant bar root grass line-spacing and pinch apart from being 15cm～30cm, pinch plant Ba Gencao between the adjacent lines and stagger that (7.5cm～arrange that 15cm) the turf consumption reduces greatly plants that human input quantity greatly reduces when burying to half pinch of distance; Secondly, the Ba Gencao that this technology is used is wild bar root grass, is very easy in the open air collect, and need not special expropriation of land plantation, maintenance, has saved land use and turf and has cultivated required labour cost; In addition, bar root grass vitality is extremely strong, and transportation need not to carry out Overheating Treatment and protected working such as preserve moisture, and cost of transportation is extremely low; The 4th, bar root grass vitality is extremely strong, as long as coring lands and waters one to twice, just can all survive, and pouring need not covering, also need not Special Equipment, and the irrigation sprinkler of renting the common hand tractor band that local peasant uses gets final product, so the maintenance cost is low.
The 2nd, effect is fast.Bar root grass roots beard and hair reaches, reproduction speed is fast, it is strong to wear native growing power, although plant when burying at regular intervals between each pinch bar root grass, but, as long as just can reach the desired bank protection function of design and effect through the continuous bimestrial growth time between July to September, this be laid turf in the past, broadcast sowing the grass seeds technology can not reach.
The 3rd, practicality is extremely strong.At first, no matter be to lay divot or broadcast sowing grass seeds, then by the end of August before the turf of plantation any time before be difficult to reach the protection effect of designing requirement then by the end of August, but, before plant the Ba Gencao that buries by the end of June, the protection effect that can possess designing requirement to by the end of August the time fully, in addition, dwindle line-spacing and a pinch distance planting suitably to adjust when burying, also can accelerate root system connects and stem, leaf is to dam slope, therefore the coverage speed of dam abutment, stops rainwater to being about to undertake after by the end of August then, flood, stormy waves washes away the dyke of task, and be about to the spoil disposal field of coming into operation by the end of August and dash and fill out the cofferdam, district, utilize that pinch to plant bar root grass bank protection practical especially; Secondly, wild bar root grass quantity is abundant, and the great earth dam erosion and torrent control works of scale project no matter as long as adopt bar root grass pinch to plant the structural approach construction, does not just have the trouble and worry of material supply side.
The 4th, meet national rich peasant's policy.The collection of Ba Gencao, transport, plant and bury, apply fertilizer and a series of activities such as the maintenance of spraying, clear process, technology is simple, and there is not high-risk operations substantially, be fit to very much rural migrant worker's construction, therefore, under the prerequisite that national policy, regulation allow, enable the slope protection construction that local rural migrant worker is engaged in Ba Gencao, not only reduce construction cost, and to solving local labour's residue problem certain help is arranged, increase an income also will for the rural migrant worker family that participates in construction, therefore, it also belongs to rich people's engineering, and the enforcement of engineering will be subjected to the local masses' support.
Description of drawings
Below in conjunction with accompanying drawing the present invention is described in further detail:
Fig. 1 is structural representation of the present invention;
Among the figure: 1, dam abutment, 2, dam slope, 3, base of dam, 4, the dam crest road, 5, pinch plant Ba Gencao.
The specific embodiment
After dam slope, dam abutment are ready to, the longitudinal dike axis direction, get a lot of horizon and use the lime wire tag at dam abutment, dam slope face, guarantee the adjacent horizontal spacing of every two-phase, be that line-spacing is 15cm～30cm, again from article one horizon of dam crest road and dam abutment junction, press pinch spacing apart from 15cm～30cm, measure planting of every pinch of bar root grass and bury the position, and with cross lime wire tag.(position is buried in planting of 7.5cm～15cm), begins to the base of dam direction from dam abutment, marks at every horizon successively and waits to plant the position of burying Ba Gencao according to the half pinch of distance that staggers between the adjacent lines then.All plant bury position mark good after, can arrange artificial dig the hole (degree of depth 10～15cm) is implanted to respectively one by one in the heatable adobe sleeping platform by manually pugil being scooped up bar root grass then, with coring bury, closely knit, back watering, fertilising maintenance.
Claims (4)
1. plant technology for a kind of pinch of earth dam bar root grass bank protection, it is characterized in that: plant Ba Gencao (5) from dam crest road (4) both sides dam abutments (1) to whole domatic (2) the base of dam (3) for scooping up.
2. plant technology for a kind of pinch of earth dam bar root grass bank protection according to claim 1, it is characterized in that: pinch planting Ba Gencao (5) line-spacing is 15cm～30cm, pinch apart from be 15cm～30cm, pinch plant the bar root grass position half pinch of distance (layout of 7.5cm～15cm) that staggers between the adjacent lines.
3. plant technology for a kind of pinch of earth dam according to claim 1 bar root grass bank protection, it is characterized in that: pinch planting Ba Gencao (5) be wild bar root grass, and the every pinch of above stem of bar root grass roots palpus diameter be 0.5～1.5cm.
4. plant technology for a kind of pinch of earth dam according to claim 3 bar root grass bank protection, it is characterized in that: pinch plant Ba Gencao (5) by artificial plane cheat (cheat dark 10～15cm), manually plant and bury.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102976199A CN103334407A (en) | 2013-07-17 | 2013-07-17 | Pinch planting technology for eleusine indica slope protection of earth dam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102976199A CN103334407A (en) | 2013-07-17 | 2013-07-17 | Pinch planting technology for eleusine indica slope protection of earth dam |
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| CN103334407A true CN103334407A (en) | 2013-10-02 |
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| CN2013102976199A Pending CN103334407A (en) | 2013-07-17 | 2013-07-17 | Pinch planting technology for eleusine indica slope protection of earth dam |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101498126A (en) * | 2009-02-27 | 2009-08-05 | 山东大学 | Method for protecting quasi ecological lake river bank inclined slope |
| CN102518139A (en) * | 2011-12-31 | 2012-06-27 | 董发达 | Manufacture method for ecological vegetated protective slope |
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2013
- 2013-07-17 CN CN2013102976199A patent/CN103334407A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101498126A (en) * | 2009-02-27 | 2009-08-05 | 山东大学 | Method for protecting quasi ecological lake river bank inclined slope |
| CN102518139A (en) * | 2011-12-31 | 2012-06-27 | 董发达 | Manufacture method for ecological vegetated protective slope |
Non-Patent Citations (1)
| Title |
|---|
| 郑长艳等: "公路堤坝护坡草坪建植技术", 《黑龙江农业科学》 * |
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Application publication date: 20131002 |