Properties of meandrical geotextiles designed for the protection of soil against erosion

Joanna Grzybowska-Pietras,Stanisława Przybyło,Giang Nguyen,Monika Rom,Jan Broda,L Lichołai,J Szyszka,B Dębska,A Szalacha,J Krasoń,P Miąsik

doi:10.1051/e3sconf/20184900042

Abstract

Changes in climatic conditions in the world often affect the variability of water relations and soil erosion. Observed phenomena lead to removal of the most valuable soil surface layer from slopes, washout of minerals, deterioration of slope structure and also destruction of protective vegetation. Geotextiles are used to protect slopes from effects of erosion. Depending on the type of used raw material as well as production technology, geotextiles are used for long-term or temporary protection (biodegradable). Biodegradable geotextiles under influence of atmospheric factors undergo gradual decomposition. The substances released as a result of decomposition cause soil fertilization, which promotes development of protective vegetation. The aim of the research is to assess impact of exploitation time on selected physical, mechanical and hydraulic properties of innovative geotextiles in form of meandrically arranged Kemafil ropes made of wool and recycled fibers installed on slope in Jasienica Economic Zone in Międzyrzecze. The research was carried out in the Laboratory of Geosynthetics and Textile Products of the University of Bielsko-Biala in accordance with the applicable European standards. Nonwovens used for production of geotextiles were tested before installation, as well as after 6 and 12 months from their installation. Geotextiles reduce speed of rainwater flowing down from the surface of slope and store its excess. Waste raw materials used for production of geotextiles enable products effectively protecting slope against water erosion.

Highlights

Climate changes occurring more often in Poland adversely affect numerous existing construction objects
Geosynthetics, including geotextiles perform a number of functions simultaneously e. g. in anti-erosion protection systems on slopes, geotextiles act as protection against structure slide, as a filter protecting subsoil against washout of soil particles and as surface protection
Kemafil ropes were made of wool nonwoven fabric and non-woven fabric obtained from a mix of waste natural and synthetic fibers with grass seeds - RKL

Summary

Introduction

Climate changes occurring more often in Poland adversely affect numerous existing construction objects. In case of the absence of adequate protection of earth structure performance of these factors is the beginning of their destruction. Geosynthetics have been used for protection and anti-erosion measure for many years. These products are used, among others, for construction of embankments or slopes from local soils characterized by poor mechanical properties. G. in anti-erosion protection systems on slopes, geotextiles act as protection against structure slide, as a filter protecting subsoil against washout of soil particles (filtration, drainage) and as surface protection. In combination with protective vegetation, they provide a synergistic effect [4–6]

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