rock slope protection fabric class 8

0000012187 00000 n 2 0 obj 0000015681 00000 n If the rock contains an excess of fines or inadequate voids, the desired results may be impossible to obtain. 0000014231 00000 n /OPM 1 | Conditions of Use | Privacy Policy Flat or needle shaped rock must not be used unless the individual rock thickness is greater than 0.33 times the length. Draw Down Device, Temporary Access Bridge (1 of 2, PDF only), Temporary Access Bridge(2 of 2, PDF only), Temporary Access Culvert (1 of 2, PDF only), Temporary Access Culvert (2 of 2, PDF only), Onsite Concrete Washout Structure (1 of 2, PDF only), Onsite Concrete Washout Structure (2 of 2, PDF only), If you are experiencing difficulty accessing these details or if there are anyquestions, please contact the Sediment, Stormwater & Dam Safety Program at (410) 537-3543 or by email (Amanda.Malcolm@maryland.gov, National Human Trafficking Hotline - 24/7 Confidential. The gabions are placed on filter fabric as detailed in the plans and specifications. Products with a are available to meet BABA (Build America, Buy America) requirements. % California Department of Transportation Fabric Class Class Largest rock gradation class used in slope protection 8 Classes I-VIII 10 Classes IX-XI Replace the 1st paragraph of section 73-3.028 with: Rocks for concreted-rock slope protection must comply with the gradation shown in the following table: Concreted-Rock Gradation . These supersede the previous Caltrans Riprap Sizes. At the terminals of protection, ensure the contractor is particularly careful to avoid erosion and undercutting. Our TerraTex brand offers full-spectrum performance delivery - groundwater filtration and drainage, soil separation and reinforcement, geomembrane protection, sprayed liner substrate, oil-and-gas industry drilling pad and access-road enhancement, as well as pavement overlay and bond-breaker applications. endstream Concrete canvas (CC) has the potential to become a widely used slope protection material owing to advantages such as flexibility, fast construction with low labor costs, and quick strength development. The color shall be black unless otherwise specified in the contract documents. The Standard Specifications provide two methods of placement for this type of protection: Method A and Method B. DM[2TI=lGQx7 UoFK1: V;39LFOr7LxPF{BL3he6X^@v[QhWiF!l3F) RTIBfx0.T F%n3h80Q,`[2xa%VLP /WD@j rK .9{N[#o/Fad#OK6YeqsyHl2M)V]/Nf(V?!1Oaw)fM 8JG)31m. :t4NV]j{/mtqF*sx[%M 5%(/%(Z-F|[atK5[~{a~EwDCV:/#K)f~7*RsAnnJa>Jg-m^>\V7EOG3o?nGYIFze/l( I!&VXo]mm#7I0:EK7_LFwek For details about concrete production, review Section 4-90, Concrete, of this manual. 2019-07-30T13:47:33-04:00 Method A is used where the stability of the rock slope protection is considerably dependent on the manner in which the individual rocks are placed. There are three material gradation requirements based on required rock layer thicknesses. Take the following steps when inspecting the work and materials for slope protection: In addition to the general functions discussed above, the following items apply to specific types of slope protection. Center splash basin . Retaining Walls & Slope Stability are available to meet BABA (Build America, Buy America) requirements. 3. Obtain initial samples and have them tested for the specified attributes. %PDF-1.3 % Rock riprap consists of loose rock that is dumped on the slope and distributed. When slope paving with concrete pavers is specified, ensure the special provision requirements are met. A geotextile is typically defined as any permeable textile material used to increase soil stability, provide erosion control or aid in drainage. Mirafi 1100N, 1120N and 1160N are heavy weight nonwoven geotextiles for more severe or extremely harsh conditions, such as rip-rap and revetment applications. > 1, METHOD B) (TON), ROCK SLOPE PROTECTION (NO. Your search for great running gear starts and ends with us. PsVPvCHWTxml4N,P>{Ur]JBV:V,iVkNm(C d3@p/J3O//.cji-+TA3 dsU)~Ds:mp7=h&X#0C]\:k`#+VW^`0 0=F5VvL(^f trailer << /Size 489 /Info 438 0 R /Root 464 0 R /Prev 989742 /ID[<23d8c9b814a334ef8bf252da6b923edc><23d8c9b814a334ef8bf252da6b923edc>] >> startxref 0 %%EOF 464 0 obj << /Pages 445 0 R /Type /Catalog >> endobj 487 0 obj << /S 1440 /Filter /FlateDecode /Length 488 0 R >> stream <> When shotcrete is to be used, review Section 4-53, Shotcrete, of this manual. 0000004037 00000 n 72-2.02B Fabric Fabric must be RSP fabric that complies with the class shown in the following table: 72-4 SMALL-ROCK SLOPE PROTECTION 72-4.02 MATERIALS (800) 518-2290, Providing the most comprehensive geosynthetic lines in the industry. When exposed aggregate slope paving is specified, ensure any concrete set retarders are used in accordance with manufacturer instructions. 0000012468 00000 n construction contract standards page. When shotcrete is to be used, review Section 4-53, Shotcrete, of this manual. 5. >> If the rock layer is shown as 7 inches thick, comply with grading shown in the following table: If the rock layer is shown as 5 inches thick, comply with the grading shown in the following table: If the rock layer is shown as 4-inches thick, comply with grading shown in the following table: Granular material must contain at least 90 percent crushed particles when tested under California Test 205. 1 If the slope is steeper than 2:1, do not use rounded boulders and cobbles. For combination slope/bench systems in TYPE A soil and a trench depth of less than 8 feet, the steepest maximum allowable slope is 53 degrees from the horizontal. 0000000871 00000 n Testing must follow the frequencies shown in Section 6-1, Sample Types and Frequencies, of this manual. For measuring concrete or shotcrete, refer to Sections 4-90, Concrete, or 4-53, Shotcrete, of this manual. 7 0 obj endobj This article studies the mechanical properties and stability of CC slope protection by comparing it with conventional material (shotcrete). EZw5'dr=`j+2\8:U.|V,%)~h/X8ps RSP-fabric Type of geotextile and quality requirements per Section 96 Rock Slope Protection Fabric of the Standard Specifications. Thishandbook includes new and revised details for the various practices that are used in the development of erosion and sediment control plans. If the fabric is joined by stitched seams, stitch with contrasting colored yarn. or call Project Details For EA 04-0A0204 ITEM NUMBER 729011 ROCK SLOPE PROTECTION FABRIC (CLASS 8) Bid Opening Date (mm-dd-yyyy): 04-21-2021 District-County-Route-Postmile: 04-SON-1-R15./R15.7 Quantity: 220 SQYD Unit Price: $21.50 Total Price: Type of work: REALIGN ROADWAY e&C+uPaN.%y5*>EJ9gcD,i4E|+I,b0 f)#H+E m:(B(u1b)Q%>cayKh 0SYB@RenkJ1HJ b#'mYtQS1 HU" 2`VoVsB: ~',2g(5DZsHrxUR5~4 4_ {YNjTjdV \ (aazR#;@1""(*$4"!f)G(J Slope paving is a broader term that covers a variety of methods for paving slopes, including colored slope paving, exposed aggregate slope paving, and slope paving with concrete pavers. Order corrective work when necessary. The gabion method consists of placing wire mesh box-shaped baskets filled onsite with hard, durable rocks. At the start of gabion placement, require the contractor to verify the minimum unit weight of the gabions to ensure it meets specifications. The Difference Mirafi N-Series Nonwoven Geotextiles Make: The placement of a flexible, porous geotextile between dissimilar materials so that the integrity and intended functions of both materials remain intact or are improved. Be sure to consult your local project engineer or construction professional about the rock sizing and particular . Click on the product name for a data sheet. <>stream If using geotextile fabric, place on the smoothed foundation, overlap the edges at least 12 inches and secure with anchor pins spaced every three feet along the overlap. 3, METHOD B) (TON), STRUCTURE EXCAVATION (ROCK SLOPE PROTECTION) (ENGMET). 6 0 obj Need quick pricing on Erosion Control Fabric? RG12N Nonwoven Geotextile with a 300 lbs grab tensile strength and a flow rate of 65 gallons a minute per square foot. More simply put, if it is made of fabric and buried in the ground it is probably a geotextile! Fabric must be RSP fabric that complies with the class shown in the following table: Rock must be cobble, gravel, crushed gravel, crushed rock, or any combination of these. . 0000002313 00000 n 0000004014 00000 n The concreted-rock slope protection method is used where large rock is not economically available in large quantities, yet a heavy, service type of protection is required. Provide galvanized guide rail cables a minimum 19 mm in diameter, consisting . Observe closely during rock placement to detect any damage to the fabric. Consult engineer to ensure applicable design requirements are met. Use the size and composition of yarn that is recommended by the fabric manufacturer. The State of Maryland pledges to provide constituents, businesses, customers, and stakeholders with friendly and courteous, timely and responsive, accurate and consistent, accessible and convenient, and truthful and transparent services. C-15 Permeable rock jetties (fish habitat structures) C-8 C-16 Close-up of permeable rock jetty C-8 C-17 RSP tied to solid rock outcrop, natural impermeable retard (jetty) C-9 C-18 Soil-filled voids, natural vegetation C-9 C-19 Channel cut through deposited beach sand C-10 C-20 Layers of deposited sand C-10 uuid:bc193511-b4f2-4d99-b47d-5ec173dc2f21 <>/Metadata 7 0 R/OpenAction 8 0 R/Outlines 110 0 R/PageLayout/SinglePage/PageMode/UseOutlines/Pages 11 0 R/StructTreeRoot 137 0 R/Type/Catalog/ViewerPreferences<>>> Applicability Rock Slope Armor is applicable to: Slopes where unanticipated flows are encountered. YOU MUST NOTIFY US FABRICS BEFORE RECEIVING PRICING. Review Section 4-90, Concrete, of this manual for details about concrete production. If extensive slope protection problems are anticipated or encountered during construction, refer these to the design engineer and the project manager, who may in turn obtain the advice of the Caltrans Bank and Shore Protection Committee.. Whether you're speeding down a slope or cycling uphill, the F5 can be worn in a number of ways to fit your training and needs. Place a layer (six inch minimum) of When rock slope protection fabric is required for either method, ensure the contractor places the fabric before placing the rock slope protection. 2 0 obj US Fabrics is proud to serve the geotextile needs of the State of Califronia, including: Los Angeles, San Diego, San Jose, San Francisco, Fresno, Sacramento, Long Beach, Oakland, Bakersfield, Anaheim, Santa Ana, Riverside, Stockton, Chula Vista, Fremont, Irvine, San Bernardino, Modesto, Oxnard, Fontana, Moreno Valley, Glendale, Huntington Beach, Santa Clarita, Garden Grove, Santa Rosa, Oceanside, Rancho Cucamonga, Ontario, Lancaster, Elk Grove, Palmdale, Corona, Salinas, Pomona, Torrance, Hayward, Escondido, Sunnyvale, Pasadena, Fullerton, Orange, Thousand Oaks, Visalia, Simi Valley, Concord, Roseville, Santa Clara, Vallejo, Victorville, El Monte, Berkeley, Downey, Costa Mesa, Inglewood, Ventura, West Covina, Norwalk, Carlsbad, Fairfield, Richmond, Murrieta, Burbank, Antioch, Daly City, Temecul and all other areas of California. The following common types of slope protection are covered in this section: Other protective devices are used in conjunction with highway construction, and when used, they are included in the contracts special provisions. On a cut slope, this could be due to . If you have any questions about the consistency of the gabions, you may also order the unit weight to be verified during the course of the work. application/pdf 0000005658 00000 n For method A placement and the class of RSP described, comply with the rock grading shown in the following table: For method B placement and the class of RSP described, comply with the rock grading shown in the following table: Rock must have the values for the material properties shown in the following table: Select rock so that shapes provide a stable structure for the required section. Class 2 is the default Class for M288 applications. 0000002021 00000 n in a MS Word document format from the Erosion Control Blankets Wattles help slow water runoff and reduce soil erosion. 9 0 obj 0000008354 00000 n This section provides guidelines for inspecting slope protection for work specified under Section 72, Slope Protection, of the Standard Specifications. Slope Protection consists of rock, concrete, or concreted rock or slope paving ROCK SLOPE PROTECTION ROCK SHOULD DEMONSTRATE Stability: Angular shapes may be used on any planed slope Durability: Resist degradation and have a durability of 52 minimum (Caltrans) Consistency: Product is the same load after load. For RSP Classes I thru VIII, use Class 8 RSP-fabric which has lower weight per unit area and it also has lower toughness (tensile x elongation, both at break) than Class 10 RSP-fabric. Rock mesh slope protection is a technique to control rockfalls . item code description; 729012 rock slope protection fabric (class 10) 729011 rock slope protection fabric (class 8) 723220 concreted-rock slope protection (1/4 t, class v, method b) (ton) /Type/ExtGState IMPLEMENTATION OF ROCK SLOPE PROTECTION (RSP) DESIGN endobj 99 (30% off) Best Selling Saucony Flat Mask By mrhzid $8. NTPEP Datamine Information: RG80NC is a tracking model number for the following manufacturers products: Mirafi 180NC, SKAPS GE180/GT180C or Propex 861. They are designed to protect against raveling-type rockfall that involves small-volume slope failures (up to about 7.6 m3 or 10 yd3) or blocks up to 1.5 m (5 ft), depending on the strength of the mesh used (Muhunthan et al. . Contact your local TenCate Geosynthetic representative for the proper use and specification of these products. << Refer to Section 4-96, Geosynthetics, of this manual for guidelines on inspecting and accepting rock slope protection fabric. Obtain rock samples for acceptance tests. Manufacturers information can be found at: Caltrans requires the use of these new RSP gradations starting August 1st, 2016 in new projects and those not yet at 30 percent PS&E stage. The chart below lists US Fabrics' geosynthetics meeting CALTRANS specifications. Verify the types of measurements and records necessary to support payment for the work. Shop Lowe's for solutions to control erosion on slopes, as well. Vegetation (see . Temp. For RSP Classes IX thru XI, use Class 10 RSP-fabric. ), Geocomposite Wall Drain (w/ 6oz on 1 or 2 sides - Please specify.). Click on a heading to sort by that heading. State-furnished materials and expenses, as well as supplemental work items and descriptions. Contract Cost Data Project Details. %PDF-1.4 If your 20'x10' patio is to have a 6" base, then you should excavate a total area of 21' (20' +6" +6") by 11' (10' +6" +6"). TenCate develops and produces materials that function to increase performance, reduce costs and deliver measurable results by working with our customers to provide advanced solutions. <> Flat or needle shaped rock must not be used unless the individual rock thickness is greater than 0.33 times the length. (You may enter part of the word or the whole phrase). Protection involves constructing a heavy mass of smaller rocks bound together by concrete. Slope protection structures are to be used where concentrated water will cause excessive erosion on existing and/or recent cut and fill slopes. Check the area to be protected to ensure that the required expansion joints are in place. Copies of these details are made available below in both Adobe Portable Document Format(PDF) and AUTOCAD Drawing (DWG) file formats. Use all suitable material in the work. Ensure concrete is cured by one of the specified methods. You can also lay bags of sand along problem areas in your landscape to keep soil from washing away and to redirect water. 0000011079 00000 n The plans will designate which type applies at each location. Angular shaped rock may be used on any planned slope. with a minimum of 50% of the stones . 4 0 obj XYo[unHCih,(~ t@K{ y.EmvKhy?_\F6.nO?iV5FlD,#t~J7z@Al.z_ooA=H /$Q-Aav. Broken-concrete slope protection consists of placing broken concrete from job site locations identified within the contract. Check to ensure that slopes and foundation areas are graded and compacted to specified tolerances. Intermittent inspection of placement of slope protection, slope paving, and fabric operations. Copyright 2023 TenCate Geosynthetics Americas. 4-7203C Small-Rock Slope Protection The small-rock slope protection method consists of excavating and backfilling the footing trench, placing rock slope protection fabric as shown, and placing small rocks on the slope. Placement of Bedding Material 1. Refer to Section 4-96, Geosynthetics, of this manual for guidelines for inspecting and accepting rock slope protection fabric. There are three material gradation requirements based on required rock layer thicknesses. (a) Exception: US 250NW is 5 pounds short on "grab breaking load" for Sediment Filter Bags. Type R. Use stones between 50 and 250 lb. JavaScript is required to use content on this page. 2005), although maintenance considerations may serve to reduce this maximum size. Of the various types of instability problems, foundation failures are the most serious and most common. Please enable scripts and reload this page. These products can be used in areas where they meet the local agency requirements. To ensure the success of Method A, ensure that the bearing of rocks from one to the other follows specifications and that the use of chinking rocks is limited to filling voids. When evidence exists that the foundation depth is inadequate, obtain both the design and hydraulics engineers concurrence with a change order to deepen the foundation. Cold storms bringing wind, rain and low-elevation snow heavy at times are forecast through early March. Note any changes that may have occurred between the preliminary design studies and the start of construction. endobj 2, METHOD B) (TON) (ENGMET), ROCK SLOPE PROTECTION (NO. com routes make excellent running trails for serious runners and casual joggers, alike. Decide whether modifications are necessary as a result of changed conditions. 1, METHOD B) (CY), ROCK SLOPE PROTECTION (NO. Source: Caltran Highway Design Manual, Chapter 870 >> 8 0 obj Close observation is required during rock placement to detect any damage to the fabric. For maximum effect, both components must be integrally planned prior to road construction. You may be trying to access this site from a secured browser on the server. Draw Down Device, Sediment Basin Schematic - Vert. Before placement of the broken concrete, inspect the material and be sure the reinforcement has been removed flush to the surface of concrete.

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