Slope stabilization and repair solutions for local. Temporary slope protection method for shallow or surficial. Turf reinforcement mats trm the ideal erosion control solution for slopes and in channels where enhancing and anchoring vegetation is the goal. If these conditions are met, any settlement that occurs is likely to be minimal. Rock slope protection is best suited in areas where revegetation is difficult, and is often used on steep slopes above retaining walls. Procedure for sampling and quality evaluation testing of rock.
For an additional 9 years he was a principal advisor to. Use of ring nets for slope protection for rockfall. Design and construction of soil slopes transportation research. Method for slope failure protection building engineering. All supporting documentation should be read prior to works i. I wish to confirm that the information in this method statement has been communicated to me and i have understood it. This method statement is generic andmay be adapted to local site conditions where appropriate. To be effective the riprap needs to be designed for a particular application. Slope protection methodology free download as powerpoint presentation. Method statement for roof water proofing in steps with. Jun 23, 2018 the purpose of this work method statement is to outline the general requirements and precautionary description of the site preparation works to be performed for any project. Actual slope means the slope to which an excavation face is excavated. Three site conditions should be considered when choosing an appropriate method for stabilizing a slope.
Method statement detailing the protective measures on declared monument. Oct 12, 2015 this is an example detailed method statement for the site setup and carrying out of a new access road and protection slabs, its a detailed method statement and shows how these should be compiled. This method is extensively used in more complex problems of slope stability and where earthquake and vibrations are part of total loading system. These protection methods, however, produce difficult conditions for initially introduced plants to grow. Various types of slope surface protection surface drains to channel surface runoff water away from slope. The construction method statement cms, with the description of works for the. Enter the item description of the code you wish to search for. The most common methods of measuring the resistance of an. Slope protection structures definition structures to safely conduct surface runoff from the top of a slope to the bottom of the slope. Slope protection guide to road slope proctection works ch 3. If you want to download individual method statement you can visit our civil method statement category. Chunam plastering this is an appliedon surface protection to slope using a. Thickness checks indicated by locations and by method chosen postspraying checks. Crib walls available in all sizes during the last four decades a number of manufacturers have begun producing precast concrete and treated timber crib wall elements, suitable for back yard applications, where there is restricted site access.
Method statement of bored piles is a construction procedure which includes hole boring into the ground, installing steel reinforcement and casting with concrete to form a pile, etc. It is strongly recommended that a specific method statement relevant to the actual project is produced. Chunam plastering this is an appliedon surface protection to slope using a clay and cement mixed plaster. Method statement of bored piles construction of piles.
Paul guyer is a registered mechanical engineer, civil engineer, fire protection engineer and architect with over 35 years experience in the design of buildings and related infrastructure. The distance is the slope of the pipe along the length of the spirit level. Construction method statement for building construction. This method considers yield criteria and the stressstrain relationship. Download electrical method statements one package 30 method of statements below is the list of method statements that shall be instantly available through download link, after the order is completed. This guide is based on information provided in slope stabilization and repair solutions for local. In practice some settlement is possible but this should be no worse than aesthetic, according to the british research establishments definition. Method statement for installation of micropiles welcome. The concrete slope protection resists erosion by wind and water and provides an esthetically pleasing surface with little maintenance required. For maximum effect, both components must be integrally planned prior to road construction. Selection criteria for slope stabilization methods. Click on the to send the number to the main search page where you can specify additional parameters. Department of transportation federal highway administration july 2002 colorado department of transportation research branch.
Slope protection guide to road slope proctection works ch 3 free download as pdf file. This practice provides recommendations for investigation, sampling, and quality evaluation testing of riprap rock fragments for use as slope protection. The finished slope should be free of pockets of small stone or clusters of large stones. Most rock slopes need some forms of treatment to ensure continued stability. Slope protection structures slope protection structures help to stablise the slope and can last a lifetime in protecting surrounding properties from damage and people from injury if they are maintained in a good and functional condition at all times. Choose the one thats closest to what you need so you can modify it easily for your project. It consists of sized and graded rock placed in a layer or in the shape of a berm.
Protection to slope by rigid surface rigid surface protection on slopes are commonly used to reduce rainwater infiltration and to prevent erosion of the slopeforming materials. This method is derived from the 4point method which is used for soil resistivity measurements. Slope protection system may comprise one or a combination of the following. Cdotdtdr200210 sponsored by the colorado department of transportation in cooperation with the u. Method statement for excavation and back filling works. Additionally, limit equilibrium method lem models were developed for each slope to investigate different stabilization methods in a parametric study. These approaches should not be considered long term permanent. Click on the to search for an item in the contract cost database using the most recent year of data. Conservation service curve number method, and caliiornia culvert practice ior.
Scaling loose blocks or boulders to be removed from exposed rock surfaces, this is usually done by manual method. Designing a stable slope includes field in vestigation, laboratory. They are used in applications where two to three times the normal erosion protection is necessary. Where riprap is used for outlet protection, the riprap should be placed before or in conjunction with the construction of the pipe or channel so that it is in. This method is derived from the 4point method which is used for soil resistivity measurements the 3point method, called the fall of potential method, comprises the earth electrode to be measured and two other electrically independent test. Method statement for roof water proofing in steps with responsibility matrix.
The most commonly used method of measuring the earth resistance of an earth electrode is the 3point measuring technique shown in figure 1. The design thickness of the riprap should extend a minimum of 3 feet horizontally from the slope. The pipe must slope downward from the source of the water or waste toward the main sewer or catch basin. Preliminary slope protection binding the surface before the area is ready for sprayed concrete. The geotextile shall meet the requirements of the specifications for supply and installation of geotextile. The shoring system designed and considered for the project is the contiguous pile wall wherein a series of piles are constructed. Evaluation of slope stabilization methods us 40 berthoud pass by michael banovich william skip outcalt report no.
How to protect natural slopes from continuous erosion. Installation of fencing issue 0 date 12514 ident no. Hec11 method used field observations to verify theoretical approach water surface slope 0. Engineering and structural methods for stabilizing slopes can be groupedinto four categories. The purpose of this method statement is to describe the method of installing micropiles as a temporary tie back supports for the temporary shoring of name of project here.
An introduction to slope stability and protection j. Doc river training works method statement tarekul islam. The primary focus is the prevention of riprap rock displacement and bedding erosion by wave action. Riprap slope protection definition a layer of stone designed to protect and stabilize areas subject to erosion. Method statement risk assessment scottish government. Fire suppression system hvac method statement installation installation method statement installation procedure lightning protection system method of statement method of statement vesda method statement method statement. Turf reinforcement mats trm geosynthetic erosion control. The primary purpose of riprap or other slope protection elements on the upstream slope of an embankment dam is to prevent erosion and damage to the design standard no. Procedure for sampling and quality evaluation testing of. You can find a variety of method statement templates online. If fabric is damaged, remove riprap and repair fabric by adding another layer. Third, finding the correct method of stability analysis solves only part of the design problem. California bank and shore rock slope protection design practitioners guide and field evaluations of riprap methods june 1996, nov 1997, oct 2000 6. Inspect periodically to see if rocks have been dislodged.
Specifications for sloping and benching, when used as methods of protecting employees working in excavations from caveins, are provided in this section. All natural slopes are subject to continuous erosion forces. Temporary slope protection method for shallow or surficial failures the following are general guidelines for minimizing additional movement of shallow or surficial slope failures during the winter months. The criblok system employs a maximum weight of weight of just 106 pounds, which. Purpose to protect the soil surface from erosive forces andor improve the stability of soil slopes that are subject to seepage or have poor soil structure. Distress means that the soil is in a condition where a cavein is imminent or is likely to occur. Do not dump through chutes or use any method that causes segregation of stone sizes. Whether the slope has been recently formed as part of new development, or is in its original natural state, some form of erosion protection may be required. Erect all necessary signage to serve notification that construction work, particularly excavation work is in progress in accordance with chapter 8 10. Construct butress support this is a concrete or masonry gravity structure to retain the rock mass. Slope surface protection slope protection structure including reinforced. Properly designed slope protection and stabilization has to include two components. Among slope protection methods applied in the past to this type of slope are.
Cast concrete cc blocks slope protection and crest treatment d. Purpose the purpose of this practice is to convey storm runoff safely down existing slopes and cut and fill slopes to minimize erosion. Method of slope failure protection conventional slope stabilization method chuman surface and nonreinforcing shotcrete surfaces were. Bored piles are constructed in the ground by boring in the circular shape of designed diameters to transfer load from the superstructure into the ground through friction and end bearing. Protection and treatment to rock slope most rock slopes need some forms of treatment to ensure continued stability. As outlined in the work plan submitted to fhwa, the study includes an evaluation of the ring net installation and an annual assessment of the performance for a 5year period. Slope surface protection slope protection structure including reinforced concrete rc earth retaining wall, rubble brick wall, boredpile wall, diaphragm wall, tieback wall made of rc or steel sheet pile, etc figures 1 and 2 show the functions of various. This would include excavating the toe of an earth flow until successive.
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