ASTM D6599-2000(2008) 345 Standard Practice for Construction of Live Fascines on Slopes《斜坡上梢捆建造的标准实施规程》.pdf

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1、Designation: D 6599 00 (Reapproved 2008)Standard Practice forConstruction of Live Fascines on Slopes1This standard is issued under the fixed designation D 6599; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revis

2、ion. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This practice covers the material, fabrication and instal-lation work to construct live fascines.1.2 The values in this standar

3、d are in SI units and are to beregarded as the standard. The inch-pound units given inparentheses are for information only.1.3 This practice offers a set of instructions for performingone or more specific operations. This document cannot replaceeducation or experience and should be used in conjuncti

4、on withprofessional judgement. Not all aspects of this practice may beapplicable in all circumstances. This ASTM standard is notintended to represent or replace standard of care by which theadequacy of a given professional service must be judged, norshould this document be applied without considerat

5、ions of aprojects many unique aspects. The word “Standard” in the titleof this document means only that the document has beenapproved through the ASTM consensus process.1.4 This standard may involve hazardous materials, opera-tions, and equipment. This standard does not purport toaddress all of the

6、safety concerns, if any, associated with itsuse. It is the responsibility of the user of this standard toestablish appropriate safety and health practices and deter-mine the applicability of regulatory limitations prior to use.2. Terminology2.1 Definitions:2.1.1 live fascine, na linear bundle of liv

7、e cut branches ofwoody plant material that propagates easily from cuttings. Thebundle is anchored in a shallow trench and partially coveredwith soil.2.1.2 rolled erosion control product, na material manu-factured into rolls designed to reduce erosion and assist in thegermination, establishment and/o

8、r anchorage of vegetation.2.1.3 dead stout stake, na wood stake approximately .75to 1 m (2.5 to 3 ft) in length. Construct dead stout stakes from3.8 3 8.9 cm (29 3 49) dimensional lumber cut diagonallyalong the 8.9 cm face.2.1.4 live stake, na woody stem or branch of vegetativelyself-propagating woo

9、dy plant species. Live stakes are approxi-mately 2.5 to 4 cm (.59 to 1.59) in diameter and 60 to 75 cm(249309) in length with the terminal end sharpened to a pointor a steep angular cut. Use live stakes as additional anchors andpropagating material on the downslope side of live fascinebundles.3. Sum

10、mary of Practice3.1 A live fascine is comprised of live cut plant stems andbranches, typically of woody plant species (e.g., willow,dogwood, poplar, etc.) that are formed into linear bundles.These bundles are installed in shallow trenches, secured in thetrench with wood stakes, then backfilled with

11、enough soil toleave a small portion on top of the branch bundle exposed. Livefascines assist to control erosion, encourage vegetative topgrowth establishment and rooting for shallow soil stabilization.4. Significance and Use4.1 Live fascines are used to provide erosion and sedimen-tation control by

12、increasing infiltration, slowing or redirectingrunoff, and trapping seed and sediments. The method providesshallow mechanical surface slope stabilization, and providesenhanced values through vegetative growth and additionalshallow soil reinforcement through the development of theroots. The ability o

13、f live fascines to function properly dependson the quality and choice of the materials used to construct thelive fascine, the means and methods of fabrication and instal-lation, and proper consideration of site characteristics and timeof year. For the live fascine to function completely, it isimport

14、ant that the live fascine develops suitable growth.5. Materials5.1 Live Woody Plant Materialare woody stems andbranch cuttings of vegetatively self-propagating woody plantspecies.When constructing a live fascine, use only fresh or well-preserved viable cuttings. Do not use dead plant material inlive

15、 fascines. The stems or branches should be long, straightand flexible to allow easy assembly into bundles. Typically,plants are harvested near the project site within the sameclimatic zone. Cut the plant material in lengths ranging from 2to4m(68 to 138). Greater lengths may be used if handling andsi

16、te conditions allow. The caliper (diameter) of cuttings gen-erally range from 1.2 to 2.5 cm (.59 to 19). The greatest successresults from cutting and installing vegetation during the dor-mant season.1This practice is under the jurisdiction of ASTM Committee D18 on Soil andRock and is the direct resp

17、onsibility of Subcommittee D18.25 on Erosion andSediment Control Technology.Current edition approved Jan. 1, 2008. Published February 2008. Originallyapproved in 2000. Last previous edition approved in 2000 as D 6599 00.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshoho

18、cken, PA 19428-2959, United States.5.2 Brush Cutting ImplementsCut live vegetation withtools such as pruning shears, loppers, clearing saws, chainsaws,or similar. Do not use axes or blunt implements.5.3 TiesSecure the bundle of live woody plant materialwith ties mode from baling twine, rope, belts o

19、r nylon ties (e.g.,electrical ties). Each tie should be long enough to reach aroundthe bundle, and strong enough to keep the bundle secure.5.4 AnchorsWooden stakes (dead stout stakes) or metalrebar is used to anchor the live fascine in place.FIG. 1 Photograph of Live Fascine Fabrication (Tied Bundle

20、s, NotInstalled)FIG. 2 Cross-section of Live Fascine (Installed)D 6599 00 (2008)26. Construction6.1 Complete excavation and other earthwork before thelive fascine construction begins. The finished slope surfaceshould be approved prior to installing the live fascine. Exca-vate a shallow trench 15 to

21、20 cm (69 to 89) deep and wide atthe appropriate location. In multiple row configurations exca-vate all additional trenches. The trench should be slightlyshallower than the diameter of live woody plant materialbundles. Temporarily stockpile excavated material on theuphill side of the trench. Any soi

22、l amendments, if needed,should be placed in the bottom and along the sides of the trenchand mixed into the soil, before placing the live woody plantmaterial bundles.6.2 Harvest live woody plant material using a sharp, cleanbrush-cutting implement. The cuttings may be temporarilystored outdoors in wa

23、ter or in a moist environment for amaximum of 2 days when the outdoor temperature remainsbelow 10C (50F), or refrigerated storage at 1C3C(33F39F) can be used for up to two (2) months, providedhumidity levels are maintained above 90%.6.3 Assemble the live woody plant material into bundlesapproximatel

24、y 15 to 20 cm (69 to 89) in diameter. Staggercuttings to maintain a reasonably uniform bundle diameter.Maintain live fascine uniformity by spacing bundle ties ap-proximately .35 m (18) on center.6.4 The installation of live woody plant material bundlesnormally begins at the bottom of the slope and p

25、roceedsupward, however alternate procedures may also be employed.To minimize live fascine damage while hand transporting themin place, use one person at approximately every 1.5 m (58)ofthe length to support the bundle.6.5 Place the bundles in the trench and secure with the deadstout stake (or other

26、inert anchoring device) driven verticallythrough the center of the bundles at1m(38) on center. Theanchoring device is driven flush with the top of the live woodyplant material bundles. Use extra stakes at connections andoverlaps. If live stakes are added, install them on the downhillside of the live

27、 woody plant material bundle at the samespacing between the dead stout stakes. Remove and replaceany live stakes that shatter or break during installation.NOTEA rolled erosion control product was also used in this exampleFIG. 3 Photograph of Typical Complete Live FascineConstructionFIG. 4 Photograph

28、 of Live Fascines in the First Growing SeasonD 6599 00 (2008)36.6 Backfill trench to accomplish good soil medium contactwith the live fascine bundle. Do not bury the entire bundle. Thelive fascine must have some branches exposed at final grade.Work and tamp the soil through and along either side the

29、 livefascine bundle. If necessary, water trench and bundle to ensuresoil migrates to voids within the fascine bundle.6.7 To provide temporary erosion protection and to expeditegermination and establishment of vegetation, seed, mulchand/or the use of rolled erosion control product may be used inconju

30、nction with live fascines. Apply the seed in the areabetween the excavated trenches or alongside the live fascine.The seeded areas should be mulched with an appropriate cover.If using a rolled erosion control product, change the installationsequence as follows; excavate the trench and stockpile soil

31、,seed and fertilize between trench rows, install rolled erosioncontrol product (lined trenches will act as a key for theblanket), install live fascine and backfill trench/bundle (see6.6). Do not seed on top of the rolled erosion control productunless specified by manufacturer.7. Keywords7.1 erosion

32、control; live fascine; soil bioengineering; slopestabilizationASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such

33、patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited

34、either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fa

35、ir hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org).D 6599 00 (2008)4