CN104963325A - Whole wire net of farmland draining trench for ecological slope protection and construction method of farmland draining trench - Google Patents

Whole wire net of farmland draining trench for ecological slope protection and construction method of farmland draining trench Download PDF

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Publication number
CN104963325A
CN104963325A CN201510321200.1A CN201510321200A CN104963325A CN 104963325 A CN104963325 A CN 104963325A CN 201510321200 A CN201510321200 A CN 201510321200A CN 104963325 A CN104963325 A CN 104963325A
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CN
China
Prior art keywords
silk screen
farmland
raceway groove
shaped
turf
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Pending
Application number
CN201510321200.1A
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Chinese (zh)
Inventor
王沛芳
王超
钱进
侯俊
饶磊
郑浩
沈蒙蒙
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Hohai University HHU
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Hohai University HHU
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Priority to CN201510321200.1A priority Critical patent/CN104963325A/en
Publication of CN104963325A publication Critical patent/CN104963325A/en
Pending legal-status Critical Current

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    • 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
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/10Biological treatment of water, waste water, or sewage

Abstract

The invention discloses a whole wire net of a farmland draining trench for ecological slope protection and a construction method of the farmland draining trench. The whole wire net comprises emergent aquatic plants 1, blocky turves 2, a steel wire net 3, a fine-grid nylon net 4, hooked wood piles 5, a trench sloping surface 6, longitudinal steel wires 7 and lateral steel wires 8, wherein the steel wire net is fixed on a left-side flat roof through hooked wood piles A; the fine-grid nylon net is fixed on a right-side flat roof through hooked wood piles B; the blocky turves are fixed on the sloping surface of soil mass of a trench through hooked wood piles C and paved on the soil mass of the trench. The whole wire net has the advantages that pollutants such as excessive chemical fertilizers and excessive pesticides in farmland irrigating water or rainwater are removed to a certain degree through effects of absorption, adsorption and the like of a vegetational zone formed by the planted emergent aquatic plants and the turves; besides, the blocky turves are fixed on the soil mass of the inner wall of the trench by adopting a dual-layer net structure of the fine-grid nylon net and the steel wire net, and falling of the blocky turves and washing of water currents to the soil mass are prevented, so that an ecological water draining trench adopting a whole steady farmland wire net structure is formed.

Description

The overall ecological revetment of farmland drainage ditch silk screen and construction process
Technical field
What the present invention relates to is the overall ecological revetment of a kind of farmland drainage ditch silk screen and construction process, belongs to agricultural non-point pollution and controls and eco-drainage ditch construction technique field.
Background technology
At present, agricultural non-point pollution control technology generally has eco-drainage ditch purification technics, Artificial Wetland Techniques, outfall buffering to retain technology and shore bank band control technology etc.Wherein so that its eco-friendly, flexible arrangement, construction cost be low and easy to maintenance etc., advantage is widely used eco-drainage ditch purification technics.Eco-drainage ditch purification technics is generally divided into two classes: class methods build to concentrate purification wetland in farmland, rainfall runoff and irrigation and drainage are pooled to after certain removal being carried out to pollutant by certain physics, chemistry and biological agent after concentrating purification wetland and enter natural water, these class methods are generally to the good purification of pollutant, but general area is comparatively large, and land occupation resource is more; Another kind of is in existing gutter, plant vegetation and lay purifier, as in planting aquatic plants, increases floating bed facility etc., when current flow through the zone of vegetation and purifier, obtain removal to a certain extent in water body, these class methods have easily to be implemented and safeguards, saves the advantages such as soil.But this kind of technical method all can run into two insoluble technical bottlenecks, that is: (1) gutter is when large discharge draining current, and the stability of raceway groove slope plant growth and domatic scour resistance are difficult to ensure; (2) under the impact of high density pollution load, dead raceway groove plant is difficult to effective replacing, to ensure the stable of raceway groove side slope and the clean dirty usefulness of plant;
For this reason, in the gutter in irrigated area is built, urgent need can meet drain function requirement, reaches again ecological, the construction technique of clean dirty, durable, stability requirement.
Summary of the invention
What the present invention proposed is the overall ecological revetment of a kind of farmland drainage ditch silk screen and construction process, its object is to for irrigated area conventional discharge ditch concrete lining section ecological property difference and the technical barrier such as existing eco-drainage ditch impact resilience and poor stability, the emergent aquactic plant utilizing refined net nylon wire and steel shape silk screen to fix and block turf, form firm overall ecological vegetation band, utilize the effect degradation of contaminant such as the absorption and sorption of emergent aquactic plant and turf, and play firm sloping bank, prevent the effect of washing away.
Technical scheme of the present invention: the overall ecological revetment of farmland drainage ditch silk screen, its structure comprises that emergent aquactic plant 1, block turf 2, steel shape silk screen 3, refined net nylon wire 4, hook-shaped timber 5, raceway groove are domatic 6, longitudinal steel wire 7, transverse steel wire 8; Wherein steel shape silk screen 3 is fixed on the flat-top of left side by the hook-shaped timber 5 of A, refined net nylon wire 4 is fixed on the flat-top of right side by the hook-shaped timber 5 of B, block turf 2 by the hook-shaped timber of C 5 be fixed on the raceway groove soil body 6 domatic on, the raceway groove soil body is laid block turf 1.
After the block turf of laying and plantation emergent aquactic plant, after the refined net nylon wire first utilizing grid less is adjacent to block turf, the nylon wire that furthers is also fixing, then recycle the larger further compacting of steel shape silk screen of grid and fixing block turf, first the laying of steel shape silk screen should form the flat-top of both sides, then U-shaped section (or trapezoidal cross-section) shape is formed, so that soil body section matches.While it is noted that the size of refined net nylon wire grid should be less than the size of block turf, is advisable with half, the length of side of refined net nylon wire grid can be generally 15cm, and the grid length of side of steel shape silk screen can be generally 30cm.The fixing needs of refined net nylon wire and steel shape silk screen are squeezed in the soil body with hook-shaped timber respectively with U-shaped section (or trapezoidal cross-section) raceway groove inwall and are fixed more than channel bank slope, form firm entirety.
Advantage of the present invention and effect are:
(1) the ecological raceway groove section of one fixed width and length, forms the overall zone of vegetation in conjunction with emergent aquactic plant and block turf, plays certain removal effect to the pollutant in irrigation and drainage, gives security for importing water quality of river quality.
(2) application refined net nylon wire and the double-deck net structure of steel shape silk screen are effectively fixed turf and slight slope, ensure that the block turf laid firmly does not come off, ensure stablizing of upper side slope simultaneously, prevent washing away of soil.
(3) the present invention utilizes vegetation and Double-level Reticulated structure to form ecological raceway groove, and construction investment is economized, construction fast and convenient succinct, the regular maintenance after work and easy to maintenance easy to operate.
(4) turf of the replaceable withered death of this technology, it is convenient, workable to change.
Accompanying drawing explanation
Accompanying drawing 1 is the overall ecological vestige sectional drawing of a kind of farmland drainage ditch silk screen;
Accompanying drawing 2 is the domatic schematic diagrames of the overall ecological vestige of a kind of farmland drainage ditch silk screen;
Accompanying drawing 3 is the overall ecological vestige overall schematic of a kind of farmland drainage ditch silk screen.
In figure, 1 is emergent aquactic plant, and 2 is block turfs, and 3 is steel shape silk screens, and 4 is refined net nylon wires, and 5 is hook-shaped timbers, and 6 is raceway groove soil bodys, and 7 is longitudinal steel wires, and 8 is transverse steel wire.
Detailed description of the invention
The overall ecological revetment of farmland drainage ditch silk screen, its structure comprises that emergent aquactic plant 1, block turf 2, steel shape silk screen 3, refined net nylon wire 4, hook-shaped timber 5, raceway groove are domatic 6, longitudinal steel wire 7, transverse steel wire 8; Wherein steel shape silk screen 3 is fixed on the flat-top of left side by the hook-shaped timber 5 of A, refined net nylon wire 4 is fixed on the flat-top of right side by the hook-shaped timber 5 of B, block turf 2 by the hook-shaped timber of C 5 be fixed on the raceway groove soil body 6 domatic on, the raceway groove soil body is laid block turf 1.
Described refined net nylon wire 4 points of longitudinal steel wires 7, transverse steel wire 8;
U-shaped (or trapezoidal) form between described left and right side flat-top;
The length of side of described refined net nylon wire grid 4 can be generally 15cm, and the grid length of side of steel shape silk screen 3 can be generally 30cm;
The emergent aquactic plants such as described reed 1 insert to be planted below waterline;
Described block turf 2 is laid on more than waterline;
The overall ecological revetment of farmland drainage ditch silk screen is based on plant, block turf is laid in side, gutter, bottom plantation emergent aquactic plant, acted on by the absorption and sorption etc. of vegetation and certain removal is carried out to farmland pollution thing, utilize the Double-level Reticulated structure of refined net nylon wire and steel shape silk screen to fix block turf and the gutter inwall soil body simultaneously, after block turf grass growth a period of time, connection is all over being overall turf, forms the farmland screen net structure eco-drainage ditch that an entirety is firm.
Lay block turf in side, turf kind can be the common turfs such as Bermuda grass, and the size of turf determines according to discharge section size; The slotting kind of bottom emergent aquactic plant can be reed, calamus, canna, Chinese celery, rush etc., and the density that emergent aquactic plant and turf are laid is according to water level with not affect proper drainage for standard.
The turf laid first lays refined net nylon wire, and the grid length of side is less than the turf length of side, and then lays galvanized sheet gauze wire cloth.First galvanized sheet gauze wire cloth should form the shape consistent with discharge section shape (as U-shaped or trapezoidal cross-section shape), so that gauze wire cloth and soil body section match.
When laying block turf, inserting kind of emergent aquactic plant and lay Double-level Reticulated structure, with hook-shaped timber, Double-level Reticulated structure and turf are fixed respectively on the flat-top of gutter He on inwall, to form the firm farmland screen net structure eco-drainage ditch of an entirety.
Embodiment
Build the method for the overall ecological revetment of farmland drainage ditch silk screen, comprise the following steps:
(1) dig in the raceway groove soil body 6 or build U-shaped section (or trapezoidal cross-section) raceway groove on existing raceway groove basis, the depth of raceway groove and width are determined by farmland area and drain discharge, as shown in Figure 1;
(2) below waterline, kind is inserted as the emergent aquactic plants such as reed 1, block turf 2 is laid more than waterline, the density of plantation should be advisable not affect gutter proper drainage, more than water level lay block turf as common in Bermuda grass etc., block turf and U-shaped section (or trapezoidal cross-section) raceway groove side slope are adjacent to and compacting, as shown in Figure 1
(3) install refined net nylon 4 and steel shape silk screen 3, the length of side of refined net nylon wire grid 4 can be generally 15cm, and the grid length of side of steel shape silk screen 3 can be generally 30cm, during construction, first shaping both sides flat-top, be then shaped U-shaped (or trapezoidal) form, to match with soil body section.The formation of Double-level Reticulated structure is first adjacent to the soil body 6 and lays block turf 1, then lays the less refined net nylon wire 4 of grid, then lays the larger steel shape silk screen 3 of grid, as shown in Figure 2;
(4) be fixed with steel shape silk screen 3, refined net nylon 4 and turf 2 that hook-shaped timber 5 carries out Double-level Reticulated structure respectively with raceway groove side on flat-top, form the overall ecological revetment of farmland drainage ditch silk screen as shown in Figure 3, as shown in accompanying drawing 1 and accompanying drawing 3.

Claims (7)

1. the overall ecological revetment of farmland drainage ditch silk screen, is characterized in that comprising that emergent aquactic plant, block turf, steel shape silk screen, refined net nylon wire, hook-shaped timber, raceway groove are domatic, longitudinal steel wire, transverse steel wire; Wherein steel shape silk screen by the hook-shaped timber of A be fixed on left side flat-top on, refined net nylon wire by the hook-shaped timber of B be fixed on right side flat-top on, block turf by the hook-shaped timber of C be fixed on the raceway groove soil body domatic on, the raceway groove soil body lays block turf.
2. the overall ecological revetment of farmland drainage ditch silk screen as claimed in claim 1, is characterized in that described refined net nylon wire divides longitudinal steel wire, transverse steel wire.
3. the overall ecological revetment of farmland drainage ditch silk screen as claimed in claim 1, is characterized in that U-shaped or trapezoidal form between described left and right side flat-top.
4. the overall ecological revetment of farmland drainage ditch silk screen as claimed in claim 1, it is characterized in that the length of side of described refined net nylon wire grid is 15cm, the grid length of side of steel shape silk screen is 30cm.
5. the overall ecological revetment of farmland drainage ditch silk screen as claimed in claim 1, is characterized in that the emergent aquactic plants such as described reed insert and plants below waterline.
6. the overall ecological revetment of farmland drainage ditch silk screen as claimed in claim 1, is characterized in that described block turf is laid on more than waterline.
7. the construction process of the overall ecological revetment of farmland drainage ditch silk screen as claimed in claim 1, is characterized in that comprising the following steps:
(1) dig in the raceway groove soil body or build U-shaped section or trapezoidal cross-section raceway groove on existing raceway groove basis, the depth of raceway groove and width are determined by farmland area and drain discharge;
(2) below waterline, kind is inserted as emergent aquactic plants such as reeds, block turf is laid more than waterline, the density of plantation should be advisable not affect gutter proper drainage, more than water level lay block turf as common in Bermuda grass, block turf and U-shaped section or trapezoidal cross-section raceway groove side slope are adjacent to also compacting;
(3) install refined net nylon and steel shape silk screen, the length of side of refined net nylon wire grid is 15cm, and the grid length of side of steel shape silk screen is 30cm, during construction, and first shaping both sides flat-top, be then shaped U-shaped or trapezoidal form, to match with soil body section; The formation of Double-level Reticulated structure is first adjacent to the raceway groove soil body and lays block turf, then lays refined net nylon wire, re-lays the steel shape silk screen that grid is thicker than refined net nylon wire;
(4) be fixed with steel shape silk screen, refined net nylon and turf that hook-shaped timber carries out Double-level Reticulated structure respectively with raceway groove side on flat-top, form the overall ecological revetment of farmland drainage ditch silk screen.
CN201510321200.1A 2015-06-12 2015-06-12 Whole wire net of farmland draining trench for ecological slope protection and construction method of farmland draining trench Pending CN104963325A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105706559A (en) * 2016-03-03 2016-06-29 南开大学 Ground system combining ecological retention and vegetable swale
CN105887780A (en) * 2016-06-14 2016-08-24 河海大学 Water-saving, ecological and landscape type irrigation canal for southern plain irrigation area
CN109328680A (en) * 2018-09-27 2019-02-15 仲恺农业工程学院 A kind of soil property ecological canal method of construction

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4194459B2 (en) * 2003-09-30 2008-12-10 株式会社大林組 Aquatic plant zone in brackish water
CN101705666A (en) * 2009-11-20 2010-05-12 河海大学 Construction method of live branch frame type plane source retaining purified ecological revetment
CN102146666A (en) * 2011-02-16 2011-08-10 河海大学 River waterfront multiplayer composite plant pollutant purification zone and construction method of river waterfront multiplayer composite plant pollutant purification zone
CN102900060A (en) * 2012-11-15 2013-01-30 中国科学院南京地理与湖泊研究所 Geo-cell type ecological ditch
CN102926362A (en) * 2012-11-15 2013-02-13 河海大学 Pollution control and emission reduction method for farmland drainage
CN103774627A (en) * 2014-01-26 2014-05-07 河海大学 Method for constructing anti-seepage type ecological channel in irrigation region

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4194459B2 (en) * 2003-09-30 2008-12-10 株式会社大林組 Aquatic plant zone in brackish water
CN101705666A (en) * 2009-11-20 2010-05-12 河海大学 Construction method of live branch frame type plane source retaining purified ecological revetment
CN102146666A (en) * 2011-02-16 2011-08-10 河海大学 River waterfront multiplayer composite plant pollutant purification zone and construction method of river waterfront multiplayer composite plant pollutant purification zone
CN102900060A (en) * 2012-11-15 2013-01-30 中国科学院南京地理与湖泊研究所 Geo-cell type ecological ditch
CN102926362A (en) * 2012-11-15 2013-02-13 河海大学 Pollution control and emission reduction method for farmland drainage
CN103774627A (en) * 2014-01-26 2014-05-07 河海大学 Method for constructing anti-seepage type ecological channel in irrigation region

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105706559A (en) * 2016-03-03 2016-06-29 南开大学 Ground system combining ecological retention and vegetable swale
CN105887780A (en) * 2016-06-14 2016-08-24 河海大学 Water-saving, ecological and landscape type irrigation canal for southern plain irrigation area
CN109328680A (en) * 2018-09-27 2019-02-15 仲恺农业工程学院 A kind of soil property ecological canal method of construction
CN109328680B (en) * 2018-09-27 2021-06-08 仲恺农业工程学院 Soil ecological ditch construction method

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Application publication date: 20151007