E3S Web of Conf.
Volume 402, 2023International Scientific Siberian Transport Forum - TransSiberia 2023
|Number of page(s)||9|
|Section||Geotechnical Engineering, Road and Bridge Construction|
|Published online||19 July 2023|
Principles for positioning a capillary barrier made of injected mortar in the earth bed
Siberian State Transport University, 191 Dusi Kovalchuk str., Novosibirsk, 630049, Russia
* Corresponding author: firstname.lastname@example.org
The paper formulates a condition for transferring an “open” freezing system into a “closed” one and proposes calculation criteria for creating a capillary barrier. The solution to the problem of capillary barrier location in the ground is obtained, which is based on linking the zone of intense moisture transfer to temperature isolines in the freezing massif. Several existing solutions for determining the temperature field diagram in the road structure at the time of maximum freezing have been considered. A general algorithm for solving the problem of capillary barrier location in the earth bed has been compiled. To verify the obtained solutions, a series of laboratory tests were carried out to determine the magnitude of moisture accumulation and frost heave of sandy loam and loam samples with plasticity number from 0.05 to 0.13 with different location of capillary barrier relative to frost zone.
© The Authors, published by EDP Sciences, 2023
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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