Influence of Boundary Conditions on Cracking of Sanxingdui Moon Bay City Wall
Joint Authors
Source
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-07-28
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
The Sanxingdui Moon Bay City Wall, in China, is built of pale-yellow sand and yellow-brown clay, and the yellow-brown layers are suffering severely.
In order to discuss the desiccation cracks in a section of this wall, this paper conducts evaporation tests in laboratory and observes the variations in the characteristics of the boundary conditions of the bottom surface of the sample.
The results show that the boundary conditions of the bottom surface of the sample consist of two free boundaries, two sliding boundaries, and one fixed boundary from the outside to the inside.
During the drying process, the free boundary extends, but the fixed boundary shrinks; the sliding boundary also remains basically stable.
We obtain the surface tensile stress distribution under different boundary conditions through stress analysis and deduce that the tensile stress distribution has a trapezoidal pattern.
Moreover, we calculate the lower limit on the crack spacing of the sample using the energy method, and the double of the sum of the maximum sliding boundary length and the free boundary length is the upper limit to the crack spacing.
Maintaining the stability of the soil moisture content of the site is the main factor in the protection of the earthen archaeological site under the humid conditions of the museum above the site.
In order to reduce the water evaporation rate of the soil, the surface of the site should be coated by a protectant, the main determining features of which are permeability, tensile strength, and compatibility with the earthen site.
American Psychological Association (APA)
Qu, Jin& Ma, Jianlin& Yang, Bai. 2020. Influence of Boundary Conditions on Cracking of Sanxingdui Moon Bay City Wall. Advances in Civil Engineering،Vol. 2020, no. 2020, pp.1-10.
https://search.emarefa.net/detail/BIM-1120884
Modern Language Association (MLA)
Qu, Jin…[et al.]. Influence of Boundary Conditions on Cracking of Sanxingdui Moon Bay City Wall. Advances in Civil Engineering No. 2020 (2020), pp.1-10.
https://search.emarefa.net/detail/BIM-1120884
American Medical Association (AMA)
Qu, Jin& Ma, Jianlin& Yang, Bai. Influence of Boundary Conditions on Cracking of Sanxingdui Moon Bay City Wall. Advances in Civil Engineering. 2020. Vol. 2020, no. 2020, pp.1-10.
https://search.emarefa.net/detail/BIM-1120884
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1120884