Instrumented micropiles load tests at future Bridge El Salvador - Guatemala: some insights.
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Bibliographic Details
| Author(s): |
Luis Millán
(MVM Instrumentación Geotécnica y Estructural, San José, Costa Rica)
Luis Ángel Vargas (MVM Instrumentación Geotécnica y Estructural, San José, Costa Rica) Mauricio Coto (MVM Instrumentación Geotécnica y Estructural, San José, Costa Rica) |
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| Medium: | conference paper | ||||
| Language(s): | English | ||||
| Conference: | IABSE Congress: Beyond Structural Engineering in a Changing World, San José, Cost Rica, 25-27 Seotember 2024 | ||||
| Published in: | IABSE Congress San José 2024 | ||||
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| Page(s): | 1095-1100 | ||||
| Total no. of pages: | 6 | ||||
| DOI: | 10.2749/sanjose.2024.1095 | ||||
| Abstract: |
The government of El Salvador is currently building a new bridge to connect the frontier between El Salvador and Guatemala in the Hachadura / Pedro de Alvarado sector. Due to ground conditions principally gravel and boulders, micropile foundations were designed to carry the loads of two abutments and two piers along the bridge. The micropiles consisted of cement slurry reinforced with a steel pipe. The micropiles have an overall diameter of 24-26 cm and depths from 19 to 24 m. Two static load tests (SLT) were executed at each margin of the river on non-definitive locations to an ultimate load of 3 MN. The piles were instrumented with LVDTs and dial gauges to measure the head and toe settlement, and with strain gauges for account for the load distribution at several levels. In this paper, the results of these tests will be presented, including a discussion of challenges for them, which lead to different insights and learning experiences for this kind of elements. |
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| Keywords: |
bridge load transfer micropile static load test value engineering
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