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Case Study of Rupture and Recovery in Excerpt from BR-060 in the Municipality of Alexânia in the State of Goiás, Brazil

2018; Springer International Publishing; Linguagem: Inglês

10.1007/978-3-030-02032-3_14

2366-3405

Rideci Farias, Tiago Martias Lino, Haroldo Paranhos, Itamar de Sousa Bezerra, Ranieri Araújo Faria Dias, Alexsandra Maiberg Hausser, Roberto Pimentel de Sousa Júnior,

Tailings Management and Properties

The BR-060/GO rupture occurred on the border between the Federal District and the state of Goiás, near the city of Alexânia/GO. The landslide occurred in the early hours of December 28, 2010 at km 24 of BR-060. On average, the highway passes about 60 thousand vehicles per day. The region is characterized by cerrado vegetation and rugged terrain with hills, valleys and lowlands, which contributed to this. The region is also surrounded by several water courses. The landslide resulted in a crater about 60 meters long and 12 meters deep, completely banning road and vehicular traffic in the region. Despite the seriousness of the accident, fortunately there were no casualties. The emergency works began on December 28, 2010. According to the National Department of Transportation Infrastructure (DNIT), these highway recovery works had a 180-day deadline. The contract also included the execution of the deviations for the liberation of vehicle traffic. The competent and supervising body of the work was the DNIT itself, in which it gave all the support and accompaniment to the execution of the services. In addition to the recovery of the slopes, these works had as objective the execution of the surface and underground drainage devices, as part of the solution. The underground drainage was characterized by the execution of deep drains, sub-horizontal drains and draining layers. Already the superficial drainage by the execution of gutters of central bed, gutters of sidewalk, descents of water, tubular manhole of concrete and boxes collector. For the recovery of the embankment, gabion containment, paving and environmental recovery services were also carried out. Therefore, this article aims to present analyzes of the possible causes of landslide, but also the solutions adopted to recover the damaged section. The main solution includes the gabion restraint system, associated with complementary works to recover the ruptured section, but also the consequent release of traffic on the road.