Impact Containment Barriers with Geotextile Tubes  

作　　者：Flávio da Silva Ornelas Luís Fernando Martins Ribeiro Rafael Cerqueira Silva Flávio da Silva Ornelas;Luís Fernando Martins Ribeiro;Rafael Cerqueira Silva(Instituto Federal de Educaç,ã,o Ciê,ncia e Tecnologia—,IFTO, Palmas, Brasil;Departamento de Engenharia Civil e Ambiental, Programa de pó,s graduaç,ã,o em Geotecnia, Universidade de Brasí,lia—,UnB/Campus Universitá,rio Darcy Ribeiro, Brasí,lia, Brasil)

机构地区：[1]Instituto Federal de Educaç,ã,o Ciê,ncia e Tecnologia—,IFTO, Palmas, Brasil [2]Departamento de Engenharia Civil e Ambiental, Programa de pó,s graduaç,ã,o em Geotecnia, Universidade de Brasí,lia—,UnB/Campus Universitá,rio Darcy Ribeiro, Brasí,lia, Brasil

出　　处：《Journal of Geoscience and Environment Protection》2024年第5期325-344,共20页地球科学和环境保护期刊（英文）

摘　　要：Recently, tragic tailings dam collapses in Brazil have caused deaths and major destruction and the need to develop technologies capable of preventing damage to people and the environment. Brazilian tailings dams are in a situation of uncertainty due to new legislation that even requires decommissioning, an activity that involves many problems and where the risk of failure is the main one. An impact containment structure downstream of these dams can be effective and geotextile tubes, in a new approach, have emerged as an option with advantages in terms of execution, costs and safety. The technology is versatile and can bring many benefits such as the reuse of tailings or filling with low-energy or reused materials. In this research, geotextile tubes were tested as free containment barriers, experiencing impacts in reduced models. The safety factor for the stability of the structure was constructed using an equation which is the ratio between the self-weight of the barrier structure and its coefficient of static friction and the impact pressure, where the data showed an adequate correlation which suggests the viability of mitigating risks.Recently, tragic tailings dam collapses in Brazil have caused deaths and major destruction and the need to develop technologies capable of preventing damage to people and the environment. Brazilian tailings dams are in a situation of uncertainty due to new legislation that even requires decommissioning, an activity that involves many problems and where the risk of failure is the main one. An impact containment structure downstream of these dams can be effective and geotextile tubes, in a new approach, have emerged as an option with advantages in terms of execution, costs and safety. The technology is versatile and can bring many benefits such as the reuse of tailings or filling with low-energy or reused materials. In this research, geotextile tubes were tested as free containment barriers, experiencing impacts in reduced models. The safety factor for the stability of the structure was constructed using an equation which is the ratio between the self-weight of the barrier structure and its coefficient of static friction and the impact pressure, where the data showed an adequate correlation which suggests the viability of mitigating risks.

关 键 词：Geotextile Tube Debris Flow Barriers IMPACT MINING 

分 类 号：O34[理学—固体力学]