Case Study: Townhome Complex Foundation Failure due to Frost Action—Investigation and Repair

2002 ◽  
Author(s):  
John R. Woodworth ◽  
Thomas G. Krzewinski
Keyword(s):  
Frost Action ◽  
Complex Foundation ◽  
Foundation Failure

Causes of pile foundation failure in permafrost regions: The case study of a dry bridge of the Qinghai-Tibet Railway

2017 ◽  
Vol 230 ◽  
pp. 95-103 ◽  
Author(s):  
Yanhui You ◽  
Jinchang Wang ◽  
Qingbai Wu ◽  
Qihao Yu ◽  
Xicai Pan ◽  
...  
Keyword(s):  
Pile Foundation ◽  
Foundation Failure ◽  
Permafrost Regions

scholarly journals Understanding Deterioration due to Salt and Ice Crystallization in Scandinavian Massive Brick Masonry

Heritage ◽  
2021 ◽  
Vol 4 (1) ◽  
pp. 349-370
Author(s):  
Kristin Balksten ◽  
Paulien Strandberg-de Bruijn
Keyword(s):  
Laboratory Study ◽  
Masonry Wall ◽  
Sodium Sulphate ◽  
Brick Masonry ◽  
Masonry Buildings ◽  
Historic Buildings ◽  
Frost Action ◽  
Complex Functions ◽  
And Behavior

Extensive durability problems such as weathering and degradation are found in historic Scandinavian brick masonry buildings, especially from the neo-Gothic period. These are largely due to the crystallization of salts and frost action in the bricks and mortars. This article aims to show and illustrate which salts and crystals are found in historic brick masonry buildings and to describe their appearance and behavior. An additional aim is to explore possibilities of preventing salt-related damage on internal masonry wall surfaces, such as using hemp-lime sacrificial plaster beneath the plaster. The objective is to show the mechanisms behind salt-related problems and to perform a case study and a laboratory study on salt-damaged brick masonry containing sodium sulphate. In order to prevent and stop damage to the masonry, it is important to be able to identify the nature of the salt damage and the type of salt that caused the damage. Neo-Gothic brick masonry buildings require well-planned, continuous maintenance of the masonry. It is therefore of the utmost importance to have an understanding of the complex functions of the masonry and of the salts that can cause damage to these historic buildings.

Geotechnical Aspects of the N1 Tower, Prasat Sour Prat, Angkor Thom, Cambodia

2010 ◽  
Vol 133-134 ◽  
pp. 113-118 ◽  
Author(s):  
Yoshinori Iwasaki ◽  
Mitsuharu Fukuda ◽  
Koichi Nakagawa ◽  
Yasushi Akazawa ◽  
Ichita Shimoda ◽  
...  
Keyword(s):  
Soil Strength ◽  
Soil Layers ◽  
The Real ◽  
Counter Measures ◽  
Angkor Thom ◽  
Masonry Tower ◽  
Soil Mound ◽  
Foundation Failure

This paper presents a case study of foundation of an inclined independent masonry tower in Angkor. One of the Prasat Sour Prat towers had been dismantled before reconstruction for conservation. The foundation was inclined as the same as the upper structure of the tower and spreading outwards. The inclination was considered caused by foundation failure with some differential settlements of the ground. During dismantling, the soil layers exposed on the trenched section were found rather horizontal than the inclined state that had been expected. Laterite blocks of step slope stones was found to have slid down along the soil mound of the foundation. The mechanism might have been caused by weakening of soil strength by wetting ground. Without dismantling, the real mechanism of the inclination was never known as well as the corresponding counter measures.

Frost Action Mechanisms of Clay Roofing Tiles: Case Study

2012 ◽  
Vol 24 (9) ◽  
pp. 1254-1260 ◽  
Author(s):  
J. Ranogajec ◽  
P. Kojić ◽  
O. Rudić ◽  
V. Ducman ◽  
M. Radeka
Keyword(s):  
Frost Action ◽  
Action Mechanisms

The Genesis and Internal Dynamics of El Salvador's People's Revolutionary Army, 1970–1976

2014 ◽  
Vol 38 (01) ◽  
pp. 102-129
Author(s):  
ALBERTO MARTÍN ÁLVAREZ ◽  
EUDALD CORTINA ORERO
Keyword(s):  
Latin America ◽  
El Salvador ◽  
Early Years ◽  
Left Wing ◽  
Internal Dynamics ◽  
Internal Coherence ◽  
The 1960S

AbstractUsing interviews with former militants and previously unpublished documents, this article traces the genesis and internal dynamics of the Ejército Revolucionario del Pueblo (People's Revolutionary Army, ERP) in El Salvador during the early years of its existence (1970–6). This period was marked by the inability of the ERP to maintain internal coherence or any consensus on revolutionary strategy, which led to a series of splits and internal fights over control of the organisation. The evidence marshalled in this case study sheds new light on the origins of the armed Salvadorean Left and thus contributes to a wider understanding of the processes of formation and internal dynamics of armed left-wing groups that emerged from the 1960s onwards in Latin America.

Culture and the plasticity of perception

2020 ◽  
Vol 43 ◽  
Author(s):  
Michael Lifshitz ◽  
T. M. Luhrmann
Keyword(s):  
Cultural Context ◽  
Sensory Experience ◽  
Cultural Learning ◽  
The World

Abstract Culture shapes our basic sensory experience of the world. This is particularly striking in the study of religion and psychosis, where we and others have shown that cultural context determines both the structure and content of hallucination-like events. The cultural shaping of hallucinations may provide a rich case-study for linking cultural learning with emerging prediction-based models of perception.

Dual systems for all: Higher-order, role-based relational reasoning as a uniquely derived feature of human cognition

2019 ◽  
Vol 42 ◽  
Author(s):  
Daniel J. Povinelli ◽  
Gabrielle C. Glorioso ◽  
Shannon L. Kuznar ◽  
Mateja Pavlic
Keyword(s):  
Temporal Reasoning ◽  
Higher Order ◽  
Important Case ◽  
Human Cognition ◽  
Relational Reasoning ◽  
Dual Systems ◽  
First Order ◽  
Reasoning System ◽  
Role Based

Abstract Hoerl and McCormack demonstrate that although animals possess a sophisticated temporal updating system, there is no evidence that they also possess a temporal reasoning system. This important case study is directly related to the broader claim that although animals are manifestly capable of first-order (perceptually-based) relational reasoning, they lack the capacity for higher-order, role-based relational reasoning. We argue this distinction applies to all domains of cognition.

Sociocultural memory development research drives new directions in gadgetry science

2019 ◽  
Vol 42 ◽  
Author(s):  
Penny Van Bergen ◽  
John Sutton
Keyword(s):  
Episodic Memory ◽  
Autobiographical Memory ◽  
Developmental Psychology ◽  
Cross Cultural ◽  
Memory Development ◽  
Development Research ◽  
Cultural Research ◽  
New Directions ◽  
Cross Cultural Research

Abstract Sociocultural developmental psychology can drive new directions in gadgetry science. We use autobiographical memory, a compound capacity incorporating episodic memory, as a case study. Autobiographical memory emerges late in development, supported by interactions with parents. Intervention research highlights the causal influence of these interactions, whereas cross-cultural research demonstrates culturally determined diversity. Different patterns of inheritance are discussed.

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