File Name: biotechnical and soil bioengineering slope stabilization .zip
- How to renew soil bioengineering for slope stabilization: some proposals
- Bioengineering Techniques for Soil Erosion Protection and Slope Stabilization
- Biotechnical And Soil Bioengineering Slope Stabilization Pdf
Sotir President, Robbin B. This book reviews the horticultural and engineering basis for biotechnical and soil engineering treatments.
How to renew soil bioengineering for slope stabilization: some proposals
Download PDF. A short summary of this paper. Bioengineering techniques for soil erosion protection and slope stabilization N. E-mail: istath egnatia. Old methods with rocks and plants, structures of timber have been used over the past centuries. Recently these old soil conservation and stabilization techniques have been rediscovered and improved. Biotechnical engineering methods have become part of geotechnical and hydraulic engineering and have helped bridge the gap between classical engineering disciplines, land use management, landscape architecture and biological sciences.
In this review the different uses of plants in hydraulic and geotechnical engineering design are presented. The core of this review is a comprehensive overview of the most important biotechnical construction methods used for soil erosion protection and slope stabilization.
Methods, construction procedure, and the major advantages and disadvantages of these biotechnical methods are discussed. Considerations about construction and maintenance costs conclude in this review. Key-Words: Soil erosion protection,slope stabilization, geotechnical engineering, biotechnical construction methods 1 Introduction Biotechnical engineering techniques rely on biological knowledge to build geotechnical and hydraulic structures and to secure unstable slopes and 2 Materials and methods banks.
Whole plants or their parts are used as construction materials to secure unstable sites, in 2. Thus biotechnical engineering does not replace Bush mattress construction with living brunches can traditional hydraulic and geotechnical engineering e. They are built rectangular to the slope and improves other technical engineering methods. The are discussed. Surface covering methods such as sprout buds of branches are bedded in the same direction seeding, hydroseeding Georgi, Belstou, and they tied up in fascines with cm length in Stathakopoulos, , or rhizome plantings of length fascines direction with touching between them.
Biotechnical methods using willows and other meters to all width slope. The emphasis of this wood pegs each with length 1. The wood pegs are driven into the soil through the structures and their use.
The major advantages and mattress in ditches depth cm. The above construction can dublicated set of fascines every meters in slope direction according the cionditions of slope stabilization.
The upside of slope and behind of the fascine can filled with soil or planted plants cuttings or seeded. Figure 1. The ends of the woven rods are struck into the soil depth 10 cm every 10 cm betrween them This construction stabilize the soil, reduce the The construction is placed in part of the internal movement speed of rainning water, reduce the surface surface of slope diastance 30 cm. The part between erosion and stabilize mass of soil especially if is slope and construction filled with excavations products combined with other methods.
In that way stabilize and suitable flat surfaces created for planting. Figure 2. Between these pegs every 20 cm shorter of living Fig. Used to control the surface soil, reduce the movement soil material and on the other hand to avoid runoff speed with infiltration of flood water. The log brush barriers are wood parts of trees Any stop of line must be covered from the next Fig 3.
Figure 3. The lliving bruncches covered wtih soil. The same construction can be without use of Fig. Cultivated slowly the soil and placed the log in contour lines and disadvantages: fastened exactly to the soil.
The logs are fixed with pegs with diameter cm. Use: Stabilization of top soil layers, slopes of fine material or bank toes, drainage of wet zones. The 2. Biotechnical structures tend to accelerate plant The construction includes the below: succession, thereby establishing some sort of Chosen the right areas were the wood fences will be climax vegetation in a short period of time.
This placed and lined on the surface soil. How much work they require depends on the calculated the required number of these dead parts type of vegetation to be established and the from the market.
Care and maintenance Horizontal terrace create with small width. Sites where biotechnical structures are used are When the length of rods is smaller than the length often poor in plant nutrients and top soil.
To of fence the union between them must be done with promote plant development, fertilization has other or peg. The length of construction must secure the On pioneer stands it promotes a much faster closing protection of slope against erosion and must broken up of the plant cover, which in return reduces every 5 m to avoid the collapsing of the whole construction.
Figure 5. Mineralized fertilizers, manure, neglect the different wage and price systems in compost and cuttings are commonly used. Central Europe. The amount, combination and timing of fertilizers is To avoid these problems with absolute prices, plant, site and time specific, and should be detailed the following references are offered: in a fertilization plan.
Average construction time required for different b Irrigation methods: the single largest cost of a biotechnical structure is construction time, so this point should be In moderate climatic zones irrigation should addressed first.
Costs for planning and supervision, only be used to sludge the root stocks of new material used and machinery vary with availability, plantings, or to assist during droughts. Overly size of a project, and region. On the other hand, in Average maintenance costs are offered in average arid zones, or areas with very dry summers, may percentages of the overall maintenance costs. Although changes in efficiency and wages may have occurred over time, this brief summary offers some c Soil cultivation and soil improvement initial references.
Loosening of soil and mechanical weed Ecological, social and other costs or benefits are not control promote plant development, particularly at included in this review.
These aspects, however, must be the beginning. A cm thick mulch layer of part of an overall assessment and evaluation of slope rotting material especially litter, straw, grass and stabilization works. Construction cost soil activity. Costs for planning and supervision of the construction d Care for trees and bushes including surveying, negotiations with land owners, etc. For comparisons the average required construction times for different biotechnical Although construction of biotechnical structures structures are listed in Table 1.
They include the time more work, the overall building and maintenance necessary to obtain the live material and prefabricate costs of reaches secured by methods using woody elements e.
Knowing the appropriate vegetation have proven to be cheaper than wages, as well as the costs for machinery and materials, comparable conventional standard profile buildings costs of different methods in various regions constructions Anselm ; Schiechtl ; can be estimated.
Verringerung der Ausgaben der 2. Umweltakademie, Linz, 98p. Kostenuntersuchungen much lower, and also more steady later on. DVWK-Fortbildungslehrgang maintenance frequency. Wasser und Boden 1. Technical advantages: Stern Ecological advantages: naturnahen Erdbau. No publicated specifications on - soil improvement and top soil formation bioengineering techniques. No date. Related Papers. By xianming Shi. In Tech-Streambank soil bioengineering approach to erosion control. By Francisco Sandro Holanda.
Willow spiling: review of streambank stabilisation projects in the UK. Guideline on Landslide Treatment and Mitigation. By Jagannath Joshi. Bamboo structures as a resilient erosion control measure. By Slobodan Mickovski and Guillermo Tardio. Download pdf. Remember me on this computer.
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Bioengineering Techniques for Soil Erosion Protection and Slope Stabilization
Mountain environments play a crucial role in maintaining biodiversity despite becoming more vulnerable to colluvial processes primarily induced by extreme meteorological events. Soil bioengineering stabilizes mountain slopes and limits impacts on ecosystems and is increasingly used worldwide, yet its effectiveness requires better assessment through post-intervention environmental monitoring. However such studies are only rarely performed even though they are essential to improve future intervention. This study reports soil and vegetation monitoring data of an area in the Italian Alps in which soil bioengineering work was carried out to restore an area hit by landslides. The monitoring involved an analysis of the floristic-vegetational and ecological features of the plant communities of the area of the soil bioengineering intervention and in adjacent areas , as well as an analysis of the chemical—physical characteristics of the soils texture, pH, organic matter, nitrogen content, roots depth where these communities were established.
In this work we propose the use of soil quality indicators with the aim of assessing the environmental impact of soil bioengineering works. This study was carried out in central Italy where soil bioengineering slope stabilization works were established using chestnut wood. In particular the goal of this study was to determine the occurrence of a wood-effect, that is changes of soil properties due to the presence of decomposing logs in two sites characterized by different time span since works setting up. The presence of the logs did not affect soil physico-chemical properties. Conversely, soil biochemical properties such as soil microbial biomass, basal and cumulative respiration activities as well as microbial indexes, were influenced by the presence of the logs confirming the role of these bioindicators as early predictors of changes occurring in soil.
Skip to search form Skip to main content You are currently offline. Some features of the site may not work correctly. DOI: Gray and R. Gray , R. Sotir Published Engineering.
This book reviews the horticultural and engineering basis for biotechnical and soil engineering treatments. It explains the role of woody plants in stabilizing.
Biotechnical And Soil Bioengineering Slope Stabilization Pdf
Not a MyNAP member yet? Register for a free account to start saving and receiving special member only perks. Below is the uncorrected machine-read text of this chapter, intended to provide our own search engines and external engines with highly rich, chapter-representative searchable text of each book. Because low-volume roads often omit surface slope protection, they may be vulnerable to slope failure; erosion; and maintenance, safety, and ecological issues.
The purpose of this paper is to develop and evolve cheap, affordable, environment friendly and ecologically sustainable techniques of landslide disaster management and prevention. The study is based on extensive research and field observations of various landslide management projects over the past decade and includes an intensive review of literature from secondary sources. Landslide management aims to facilitate, and as far as possible accelerate the ongoing process of development on a sustainable basis, by preventing reducing the loss of lives and property by applying modern science and technology and taking appropriate measures and safety precautions at the right place at the right time. Landslide management, even in the most developed countries, has suffered from lack of adequate financial resources. Bioengineering offers an environment friendly and highly cost and time effective solution to the slope instability problems in mountainous and hilly areas.
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