Session 01: Case Histories of Unexpected Behavior and Failure of Shallow, Deep and Other Foundations
Location
Arlington, Virginia
Date
13 Aug 2008, 5:15pm - 6:45pm
Abstract
In 2006 many engineers run into a difficulty with very rarely phenomenon during the construction of high buildings in exactly determined area to East of Sofia. Large caverns have appeared unexpectedly in the clay on depth of 4÷7m, just under the fundaments. Their volume has been around 3 ÷ 4 m3. There were mean one cavern per 60 m2. Such caverns have revealed as in the time of foundation pit, as under the old buildings. It was found that this is the known from the literature suffusion in clay which is rarely phenomena. The phenomenon has been investigated. It was found that 20 years ago the same problem had been actuated too for our specialists but the final decision has been impeded from the lower level of the technology for investigations. The information has not widespread and now it is forgotten yet. In this report are presented analyses of soil conditions, characteristics of structures, the investigation methods, the technical decisions for soil protection etc.
Department(s)
Civil, Architectural and Environmental Engineering
Meeting Name
6th Conference of the International Conference on Case Histories in Geotechnical Engineering
Publisher
Missouri University of Science and Technology
Document Version
Final Version
Rights
© 2008 Missouri University of Science and Technology, All rights reserved.
Creative Commons Licensing
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.
Document Type
Article - Conference proceedings
File Type
text
Language
English
Recommended Citation
Kolev, Chavdar Vassilev, "Soil Protection under High Buildings in Sofia After Revealing of Karsts Caverns in Clay" (2008). International Conference on Case Histories in Geotechnical Engineering. 28.
https://scholarsmine.mst.edu/icchge/6icchge/session_01/28
Soil Protection under High Buildings in Sofia After Revealing of Karsts Caverns in Clay
Arlington, Virginia
In 2006 many engineers run into a difficulty with very rarely phenomenon during the construction of high buildings in exactly determined area to East of Sofia. Large caverns have appeared unexpectedly in the clay on depth of 4÷7m, just under the fundaments. Their volume has been around 3 ÷ 4 m3. There were mean one cavern per 60 m2. Such caverns have revealed as in the time of foundation pit, as under the old buildings. It was found that this is the known from the literature suffusion in clay which is rarely phenomena. The phenomenon has been investigated. It was found that 20 years ago the same problem had been actuated too for our specialists but the final decision has been impeded from the lower level of the technology for investigations. The information has not widespread and now it is forgotten yet. In this report are presented analyses of soil conditions, characteristics of structures, the investigation methods, the technical decisions for soil protection etc.
