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MA1009-SP130411 (2)ENVIR(SCRID tnp Teague nali 8t perkins I APPROVED ❑ REJECTED ❑ FURNISH AS CORRECTED ❑ REVISE AND SUBMIT ❑ SUBMIT SPECIFIC ITEM This review was performed only for general conformance with the design concept of the project and general compliance with the information given in the Contract Documents. Modifications or comments mode on shop drawings during this review do not relieve contractor from compliance with the requirements of the plans and specifications. Approval of o specific item does not include approval of on assembly of which the item is a component. Contractor is responsible for dimensions to be confirmed and correloted at the jobsite, information that pertains solely to the fabrication processes or to the means, methods, techniques, sequences and procedures of construction, coordination of the work of all trades, and for performing all work in o safe and soli! By: Dal. GEO PRODUCTS, LLC rM 8615 GOLDEN SPIKE LANE HOUSTON, TX 77086 PHONE: (281) 820 -5493 FAX: (281) 820 -5499 www.geoproducts.org EGA20 PLAN VIEW E cc LQ N JOKS OR STAKES IN A TYPICAL STAKING PATTERN 8.35m EGA30 PLAN VIEW 16- ■ made in USA E It appears the EGA 30 (4" R mat Matches dosely Oth N the contract specifications. 4812.006 13.72m EGA40 PLAN VIEW E co u� N NOTES: 1. DENSITY OF J -HOOKS WILL VARY BASED UPON SPECIFIC SITE CONDITIONS AND PROJECT SPECIFICATIONS., 2. OESIGN & INSTALLATION TO BE COMPLETED IN ACCORDANCE WITH PROJECT SPECIFICATIONS. 3. ALL DIMENSIONS ARE CONSIDERED TRUE AND REFLECT MANUFACTURER'S SPECIFICATIONS. 4. DO NOT SCALE DRAWING. 5, THESE DRAWINGS ARE NOT FOR CONSTRUCTION PURPOSES AND ARE FOR INFORMATION PURPOSES ONI 6. CONTRACTOR'S NOTE: FOR PRODUCT AND COMPANY INFORMATION VISIT www.CADdetails.comfinfo REFERENCE NUMBER 4812 -006. PRODUCT DETAILS TYPICAL SINGLE PANEL STAKING PATTERN PROTECTED BY COPYRIGHT©2012 CADdetails,com LTD, '00 REVISION DATE 1112612012 www.CADdetails.com EMRSCRID TM GEO PRODUCTS, LLC 8615 GOLDEN SPIKE LANE �. HOUSTON, TX 77486 PHONE: (281) 820 -5493 made FAX: (281) 820 -5499 in U SA www.geoproducts.org PLAN VIEW NOTES: 1. DESIGN & INSTALLATION TO BE COMPLETED IN ACCORDANCE WITH PROJECT SPECIFICATIONS. 2. STANLEY BOSTITCH P51 -1OB PNEUMATIC STAPLER REQUIRED. 3. 50-80 PSI COMPRESSOR AND HOSES REQUIRED. 2. ALL DIMENSIONS ARE CONSIDERED TRUE AND REFLECT MANUFACTURER'S SPECIFICATIONS. 3. DO NOT SCALE DRAWING. 4. THESE DRAWINGS ARE NOT FOR CONSTRUCTION PURPOSES AND ARE FOR INFORMATION PURPOSES ONL 5. CONTRACTOR'S NOTE: FOR PRODUCT AND COMPANY INFORMATION VISIT www.CADdetails.00nr4infa REFERENCE NUMBER 4812d012. PRODUCT DETAILS STANDARD PANEL STAPLING DETAIL 4812 -012 PROTECTED BY COPYRIGHT 012012 CADdetalls.cam LTD. REVISION DATE I lf2612012 www.CADdetails.com EwriscRlo TPA 0 is 4 GEC PRODUCTS, LLC 8515 GOLDEN SPIKE LANE r I,r HOUSTON, TIC 77586 le PHONE: (281) 826 -5493 made FAX (281) 820 -5499 in USA www.geoproducts.org ��p'�i1rn EXPANDED NOTE: PANEL LENGTH DEPENDANT ON USE OF STANDARD 29 CELL PANELS. NOTES: 1. NUMBER AND LENGTH OF REQUIRED TENDONS DETERMINED BY LOAD DESIGN. 2. DESIGN & INSTALLATION TO BE COMPLETED IN ACCORDANCE WITH PROJECT SPECIFICATIONS. 3. ALL DIMENSIONS ARE CONSIDERED TRUE AND REFLECT MANUFACTURER'S SPECIFICATIONS. 4. DO NOT SCALE DRAWING. 5. THESE DRAWINGS ARE NOT FOR CONSTRUCTION PURPOSES ANO ARE FOR INFORMATION PURPOSES ONI £�. rCNTRACTOR°S NOTE; FOR PRODUCT AND COMPANY INFORMATION VISIT www.CADdelails.corruinfo REFERENCE NUMBER 4812 -028, PRODUCT DETAILS TYPICAL ENVIROGRID PANEL 4812 -028 PROTECTED BY COPYRIGHT X72012 CADdetails.com LTD. *4p REVISION DATE 1013012012 www.CADdetails.com CELL CELL PANEL PANEL WIDTH LENGTH WIDTH LENGTH 12.6" 51.3` 8.4' 27.4' EOOPTIMAL MAX. 11" 12.4" 7:6' 30' EXPANSION EXPANDED NOTE: PANEL LENGTH DEPENDANT ON USE OF STANDARD 29 CELL PANELS. NOTES: 1. NUMBER AND LENGTH OF REQUIRED TENDONS DETERMINED BY LOAD DESIGN. 2. DESIGN & INSTALLATION TO BE COMPLETED IN ACCORDANCE WITH PROJECT SPECIFICATIONS. 3. ALL DIMENSIONS ARE CONSIDERED TRUE AND REFLECT MANUFACTURER'S SPECIFICATIONS. 4. DO NOT SCALE DRAWING. 5. THESE DRAWINGS ARE NOT FOR CONSTRUCTION PURPOSES ANO ARE FOR INFORMATION PURPOSES ONI £�. rCNTRACTOR°S NOTE; FOR PRODUCT AND COMPANY INFORMATION VISIT www.CADdelails.corruinfo REFERENCE NUMBER 4812 -028, PRODUCT DETAILS TYPICAL ENVIROGRID PANEL 4812 -028 PROTECTED BY COPYRIGHT X72012 CADdetails.com LTD. *4p REVISION DATE 1013012012 www.CADdetails.com BURY START OF � MI THE PANEL SUBGRADE J -HOOK @ EVERY 912mm (T) DOWN SLOPE CROSS SECTIC GEO PRODUCTS, LLC 8615 GOLDEN. SPIKE LANE HOUSTON, TX 77086 16P PHONE: (281) 828 -5493 made FAX: (281) 820 -5499 in U SA www.geoproducts.org ENVIROGRID PANEL o � f A­ I N F I L L rq$ GEOMEMBRANE LINER (IF REQUIRED. SEE NOTE 2) 24" OF EARTH FILL (IF REQUIRED) NOTES: 1. DESIGN 8 INSTALLATION TO BE COMPLETED IN ACCORDANCE WITH PROJECT SPECIFICATIONS. 2, QEOMEMBRANE LINER SHOULD BE IN -LINE PLASTICS' HERCULINE, HERCUSCRIM, HERCUTEX, OR APPROVED EQUAL. 2. ALL DIMENSIONS ARE CONSIDERED TRUE AND REFLECT MANUFACTURER'S SPECIFICATIONS. 3. DO NOT SCALE DRAWING. 4. THESE DRAWINGS ARE NOT FOR CONSTRUCTION PURPOSES AND ARE FOR INFORMATION PURPOSES ON[ 5. CONTRACTORS NOTE: FOR PRODUCT AND COMPANY INFORMATION VISIT www.CADdetails.cornlinf4 REFERENCE NUMBER 4812 -040. SLOPE EROSION CONTROL TYPICAL SLOPE DETAIL J -HOOKS 4812.040 PROTECTED BY COPYRIGHT 02012 CADdetaiis.com LTD. *+ REVISION DATE 11/0212012 www.CADdetails.com s. r Erosion Control Application Overview � f+ 31 Applications (Slopes and Charnels) 4� r� Anchoring Techniques and Tools 8 -1 Now nfi I I Material selection Installation 13 1 14 ■ 151 Erosion Control Application overview Many variables affect the installation and performance of EnviroGrid confinement systems, including slope grade, subsurface stability, infill material, rainfall and artificial watering conditions, hydraulic characteristics of ground water Flow and sub base anchoring quality. Due to the large number of factors, it is difficult to apply exact parameters to individual applications without depending on engineering, design and environmental inputs of on -site professionals. BASIC FORMS OF EROSION CONTROL PROTECTION 1. Granular • Reduces hydraulic energy, limiting forces within cells or under cells. Directs flow at the surface of the cell, eliminating flanking and undercutting. • Controls individual particle movement caused by gravity and water flow. • Results in a flexible and durable system. 2. Vegetation • Reduces hydraulic energy, limiting forces within cells or under cells, • Increases natural resistance and protects root system. • Directs water flow over the top, rather than through the mat. • Prevents gutting and rills. • Helps reduce moisture loss. 3. Concrete • Controls piping and undercutting by allowing cells to conform to sub grade. • Acts as a series of expansion joints, providing a flexible form. • Develops vent structures where needed. • Provides stability for steep slopes and for continuous flow channels. 3f:. ,, 2011 Geo Products. LLC Applications SLOPES Design of EnviroGrid cellular confinement systems for slopes requires analysis of several site characteristics. The length, height and angle of the slope and the failure angle of existing fill on the slope are important factors in determining the appropriate cell depth and anchoring design. EnviroGrid improves the performance of vegetated slopes by reinforcing root systems and directing hydraulic flows over the top of cells, with the cells acting as a series of check dams; thereby preventing formation of rills and gullies. EnviroGrid improves the performance of granular filled slopes by controlling the migration of fills that would otherwise be initiated by hydraulic and gravitational forces. This is accomplished by dissipating hydraulic energy in and underneath cells and by confinement of fill materials within cells. CHANNELS EnviroGrid cellular confinement systems offer a large array of methods for solving difficult situations with channel bottoms and slopes where minimal to severe erosive forces are at work, with either intermittent or continuous flows. Cellular confinement allows the use of various types of infills, including soil with vegetation, aggregate, concrete or combination thereof, for unique and aesthetic applications. 41 2011 Geo Products, LLC Vegetative Soil Infiiled Channel Confined vegetative soil performs exceptionally well in applications with low to moderate flows. EnviroG rid Cellular confinement enhances the performance of vegetation through reinforcing root zones and directing flows over the top celis; there by increasing the smear resistance of the fill and providing a finished site that is aesthetically superior when compared to conventional methods. Soil inf ll with grass cover: Peak flow velocity less than 6 m/s (20 fps) and duration of peak flow less than 24 hours. • Peak flows velocity less than 4.5 m/s (15 fps) and duration of peals flow less than 48 hours. Channel side slopes above high water level Aggregate Infilled Channel Aggregate performs well, allowing the use of different sues for variances in flow velocities encountered from site to site. This provides an aesthetically pleasing and cost effective alternative to large rip rap or hard armoring by confining and improving the performance of smaller diameter, less costly aggregates. Peak Flew Velocities with Stont Infill and recommended sizes. �CiM/t -Graded Stone J3.3 fps) 1 -2 m/s ■38mm 11.5 "l median stone size (33-6.6 fps) 2 -3 m/s (6.6 -10 fps) 0125mm (51 median stone site -STONE INFILL NOT RECOMMENDED 51i�,,,`, 2011 Ceo Products, LLC Concrete Infilled Channel Concrete fified cellular confinement systems are a cost effective alternative to traditional installed concrete lined channels. The flexible nature of the concrete filled cellular confinement system permits conformance with subgrade movement without the potential cracking and undermining associated with poured -in -place concrete slabs. installation costs are dramatically reduced through elimination of costly forms and other construction techniques typically related to concrete channel lining. In areas with limited easements, stacked cellular confinement wall slopes along channels allow the use of vegetative, granular or concrete fills in the outer cells in order to create steeper slopes and to increase resistance to higher flow rates. Concrete infill peak Flow Velocitles and recommended E_ nviroGrid Section depths: Pea low Aa=66 1.8 -6 m/s (6 -24 fps) 6 -7 m/s (20-23 fps) +75 mm (31 EnvifaGrid sections ,100 mm (4") EnviroGrid Sections +150 mm (6 ") and 700 mm (8 ") EnviroGrid Sections !NOTE: Anchor requirements are a function of depth of peak flow, bedslope gradient and self - weight of the lining system, The Project Engineer should base the design on the project specific information. 6 I P ,1 :1 % 2011 Geo producls. LLC .� off 'i SUITABLE CELL DEPTHS In most erosion control applications, load bearing is not a major consideration. Therefore, the depth of the Cell is generally determined by: e Size and weight of infill • Slope grade Outside environmental factors Economics 4SU -- I to ! -- - - - - - - - - - - - - - - -- - - - - - - ---__ -_ - - -- - -- 45° 40° 406 ' S -neas4 �n and'!1 !d Os11[9e t'°!! Degree a. 6tana �t s. e• 61 a of 35° 6- sty "d� S�1�occs of 35a T' /i 16 Slope---- - - - - -- - --- - - ---- -- - - - - -- - -- -�- Cak! G- 3Q° 3. �tynda'd °[ + 3, �ltkd Or a� tar a 6° C4%, ° – 2 TJ PJ° 240 28" 320 14+t;xNee at [narannl° $IIW $anal Cru*hed Silt 6 0AV Stans Angle of Internal Friction, 01 of infill The abowo oharl can bo uwud to yulacl 1ho "it height and 3170 In modaratO situations. Tho Mice diffetant Cell areaS are; S"dary (9.B' x W). Mid 113,7° x 12'1 and Large Coll 1192' x 169. nominat dirnensions. Moderolo sfluallona arc charuelorizod by modest predialtatton, hum" writer flow frorn beyond iho crest of tho slope. and no oxoectakion that a good ground cover wiA become astabltnhed before ilw rainy season or a major ■form evert. It lino aelunl situation 1s nwro severe, or less aevera. the selerilnn or the halgrit and wldrh of cell Snould reflect lhis. The may1mum size 01 IrOvldual plooDs Of tnlltl should be no larger than 1/3 the height of Ine cell. This Is a (tLclor In selaciing trio height of Call 71 r, l;,,o 2011 Geo Products, LLG Anchoring Proper anchoring of the EnviroGrid to a slope is critical to how well the product performs. Anchors should be left in place after installation. The number and type of anchors is determined by the following: • Subgrade density • Weight and type of infill • Length of slope • Slope grade • Environmental or external conditions, such as snow. • Angle of internal friction (40) of the fill material and of the slope soil (only the smaller of the two will be used) • Height of EnviroGrid • Presence of geomembrane liner Before selecting an anchoring method, it is first necessary to calculate the net sliding force (NSF) or the force which would have to overcome to keep the EnviroGrid from sliding down the slope. If the NSF is negative, then the friction force between the EnviroGrid and the slope is sufficient to hold the system in place. The following table shows some examples of NSF calculation: Net Sliding Force = J(H x L x y) + ( L x SL)J x (sin w — (cos w tan ❑)`j NSF- Net Sliding Force H- Height of Call V- Unit Weight of Fill SL- Snow Load 0- Lowest Angle of Internal Friction of Soil Pounds per foot measured parallel to top of slope Indicates no special anchoring is required L- Length of Slope W- Slope Inclination (H to V) 2011 Geo Products. LLC ANCHOR TRENCH The upper edge of the EnviroGrid .should be buried in an anchor trench to prevent flow underneath. This also serves to anchor the EnviroGrid to the top of the slope. This method takes advantage of the weight of the soil on top of the buried cells. The following equation can be used to calculate the required length and helght of the trench to resist the sliding force: L x H = net sliding Force x factor of saf t Unit weight of soil x tan 0 Where 0 is the angle of internal friction of the fill, or of the surface soil, whichever is lower. If the slope is longer than the panel length, lower panels must be toed In or attached to the upper panel, or anchored using another appropriate method. ANCHOR PINS Staking or pinning EnviroGrid to a slope is the common anchoring method used if there is no geomembrane liner present and if the soil has adequate strength to retain the anchor pins. Steel reinforcing bars bent into "candy cane" shapes called "I" Books are the preferred type of pin, As ageneral rule the length of the pin should be three tunes the cell height. Typical detail drawings of pin locations are available. STAPLES If conditions require that adjacent sections of EnviroGrid be joined together rather than butted against each other, staples can be used. Staples are normally attached using a pneumatic staple gun with industrial grade staples. The staples are attached through each set of adjoining cells. Adjacent panels may also be tied together with tendons. 2011 Geo Products, LLC TENDONS AND RESTRAINT PINS Tendons and restraint pins are employed on steep slopes where additional support is needed, or where use of pins in prohibited (rock base, geomernbrane liner). They are also commonly used when more than one section of EnviroGrid is needed to cover the slope from top to bottom. The three important characteristics of tendons are strength, durability and resistance to creep. Tendons usually consist of high strength polyester webbing or cord. The design load and spacing of the tendons is determined by the force to be supported. A large number of lighter tendons are preferable to a smaller number of heavier tendons. Batten straps or large washers at the bottom of the lowest section of EnviroGrid are essential to avoid stress concentrations. Installation Using Tendons If the EnviroGrid does not already have holes for tendons, drill the holes before expanding the EnviroGrid sections. Measure and cut tendons to desire length (add approximately 10% For tying around restrain pins). Tie the tendons to a supporting structure beyond the crest of the slope. This supporting structure may be a length of high - strength PVC pipe, a concrete beam, or set of concrete blocks ,placed in an anchor trench. An alternative system may consist of harpoon like earth anchors. Earth Anchor Using Dead Man System '~'�' t_nvirogiid Cwt n Rtav Comfor asjL m Man m PVC P.es {;�crrevriL!ana Earth Anchor Using Harpoon -like System Whether or not tendons are utilized, EnviroGrid should be placed beyond the crest of the slope to prevent surface water from undermining the EnviroGrid. IE 2021 Geo Products. LLC At the top of the slope thread tendons through the holes in the unexpanded EnviroGrid sections. Measure and mark the perimeter of the area to be covered by the First section to be installed. If allowable, place anchor pins around the perimeter to hold the expanded sections into place. Expand and place the section, taking care that the tendons do not come out of the holes. Repeat this procedure for remaining sections. The tendon must be tied, in tension, to a restrain pin or batten strip on the downhill side of the last cell wall. The use of washers or plates helps to relieve point stresses. The use of restrain pins, batten strips, washers and plates helps to transfer the load From the EnviroGrid to the tendons. Restrain pins, batten strips, washers and plates should be made from corrosion resistant materials such as galvanized steel, high strength plastic, etc. 16 1 2 � rA i a i 111 j., ANCHOR PIN INSTALLATION WITH TENDONS STEP 1: Make 2 loops in the tendon. STEP 2: Pull loop 1 partially through loop 2. STEP 3: Insert the specified J -hook anchor through loop 1 and drive J-hook into the ground until the top of hook is level with the top of the EnviroGrid section. STEP 4: Pull both ends of tendon to close the loop and drive the J -hook until the top of it is flush with ground surface 2011 Geo Products, LLC ANCHORING METHOD Given the resulting net sliding force (NSF) for two to the cases in the previous table the next step is to decide how to anchor the EnviroGrid. For the situation where NSF = 0.8 kN/m, two common methods of anchoring of the EnviroGrid are to toe it in or to stake it to the slope. For the situation where NSF = 5.1 kN/m, the EnviroGrid could be supported by earth anchors with tendons. Anchor Trench Using the appropriate equation L x H 0.8x2 0.15 sq. m 19.6 x tan 28° A practical combination would be to bury the top edge of the EnviroGrid 0.3 m deep and 0.5 m back. Another practical combination would be to let L be 0.75 rn and H be 0.2 m. Stakes 0.8 kNJm is equivalent to 0.9 x 2.56 = 2.0 kN for the 2.56 m wide panel. Using a factor of safety of 2.0 and a stake pull -oast capacity of 0.27 kN": 2.0 x 2.0 = 14.8 "J" Hooks, use 15 stakes per 2.56 m wide width 0.27 Tendons 5.5 kNIm is equivalent to 5.5 x 2.56 = 14.1 kN for the 2.56 m wide panel. Using a factor safety of 3.0 and a tendon design strength of 13.0 kN: 141 x 3.0 = 3.25 tendons, use 4 tendons per 2,56 rn paned width 13,0 If the tendons are tied to earth anchors, using the same number of anchors as tendons, an additional factor safety of 1.25 to account for uncertainties in the subgrade soil: Stake pull -out capacity will depend upon several factors, including on -site soil conditions at their weakest, and the care with which the stapes are driven into the soil. Thus the local engineer must evaluate and make a judgment as to what value should be used. Geotextiies Whether to use a geotextile under the EnviroGrid is dependent on the subgrade and fill material. When the infill and subgrade are different, or if the subgrade is very soft or wet, a geotextile can provide a useful separation function by keeping the infill from migrating out from under the geocells. However, using a geotextile can reduce significantly the friction along the plane at the bottom of the EnviroGrid system, thus increasing the net sliding force. Thus the decision whether or not to use a geotextile. should be made carefully, after evaluating the benefits and costs. lnfill Material Selection • Topsoil and Vegetation: Steep slopes, berms, levees, chutes, aprons and spillways. • Sand and Granular: Suitable on gradual slopes • Gravel Maximum diameter 760 mm l: Channels, slopes, except for severe grades, moderate sheet flow. Crushed! Stone: Channels, slopes, except for sever grades, moderate sheet flow. ■ Concrete: Around bridges, severe slopes, high flow rate channels, spillways and chutes Installation Procedures Prepare the site by removing all vegetative cover, debris and any unacceptable soils form the area where the EnviroGrid cellular confinement system is to be placed. Replace any removed soils with acceptable materials and complete all earthwork, including toe in trenches when required for slopes or channel lining applications, in accordance with the job specifications. If geotextile is required by the job specifications, installation should be accomplished in accordance with the manufacturer's recommendations.. Partially install stakes or "'Y' hooks, leaving a protruding length of the cell depth plus approximately 50 mm, along the top edge of the area in which the EnviroGrid is to be installed (or in the anchor trench). A string or chalk line may be used to align staking locations and borders. EnviroGrid sections should be stretched past the designed length then allow to settle back to the designed length. Set the and cells of the EnviroGrid sections over the previously installed stakes and complete installation of the stakes or "J" hooks flush with or slightly below cell walls. Adjoining EnviroGrid sections must be level and flush with each other. Overlap the sides of the EnviroGrid sections and butt the ends together. Secure adjoining sections to each other using a pneumatic stapler or other means as required by the yob application. Install the balance of the stakes or "J" hooks as required by the job specifications. When the EnviroGrid has been properly laid in place, the system should be infilled using the materials specified in the job specifications. To prevent possible damage to the system, limit the drop height of the infilJ to no more than lm. Inflll should be delivered to the EnviroGrid from the top of the slope or channel to the base using a front -end loader, backhoe, bucket excavator or conveyor. When using sand, granular or topsoil fills, overfill the EnviroGrid sections by 25mm to 50 mm to allow for settling and compaction. Sand and granular fills should then be blade compacted to the top of the cells. Topsoil fills should he compacted with the loader or backhoe bucket or with tamper plate. Concrete fills should be manually raked and machine finished. Goo F}rvdr,cts LL C provides 11vs rnforlJl€ Dw anty M a,i accammodatron to aui cur lotnels No warranty or other 25 1 P a& e represenrartron regarding tfm ulab#rty of the apphication procedu es is made dad la the fact lhar each rnstaflatbo lies spec& reyuirenrsnls that may tioi have Been considered on tars penerabzed rocedore. Geo Rod�u1cls LLC makes r,a vvviranr+es car iepresenlaltorts regao ding the suitabilrry of its Enwrrrr �r ti�i�9 cif was Our lrm(Ary is limited to furnlshtnq. wirhour charge. a replacement for m)y EnvorpGna that is proven defective under normal u&& and service