A Study of Subgrade Frost Heave and Frost Penetration Depth Computation: The Case of Provincial Highway 102 in Jilin Province of China

2016 ◽  
Author(s):  
Guest Editor Jianping Du
Keyword(s):  
Penetration Depth ◽  
Jilin Province ◽  
Frost Heave ◽  
Frost Penetration

scholarly journals Incidents of damage to berm drainage ditches in cold region and countermeasures

2019 ◽  
Vol 265 ◽  
pp. 05019
Author(s):  
Atsuko Sato ◽  
Takahiro Yamanashi ◽  
Takayuki Adachi
Keyword(s):  
Soil Temperature ◽  
Penetration Depth ◽  
Frost Heave ◽  
Drainage Ditches ◽  
Drainage Ditch ◽  
Cold Region ◽  
Freeze Thaw ◽  
Ground Conditions ◽  
Frost Penetration

Berm drainage ditches may fail due to frost heave in cold and snowy areas like Hokkaido. Many of these failures are regarded to be caused by damage due to frost heave in the ground or freeze-thaw, but no sufficient measures are being taken, as construction guidelines and procedures do not describe any established countermeasures for the damage. Therefore, it was decided to study countermeasures by utilizing berm drainage ditches that can change form in response to frost heave, rather than by trying to reduce the level of change caused by frost heave. A drainage ditch made of flexible asphalt sheets was constructed on site, and the soil temperature, frost penetration depth, frost heave amount, and other parameters were measured. As a result, it was found that a drainage ditch made of asphalt sheets is more effective when ground conditions including moisture and temperature are severe in relation to frost heave.

Field frost heave measurement and prediction during periods of seasonal frost

1990 ◽  
Vol 27 (3) ◽  
pp. 393-397 ◽  
Author(s):  
H. N. Hayhoe ◽  
D. Balchin
Keyword(s):  
Temperature Gradient ◽  
Displacement Transducer ◽  
Linear Displacement ◽  
Time Domain Reflectometry ◽  
Frost Heave ◽  
Unfrozen Water ◽  
Data Logger ◽  
Unfrozen Water Content ◽  
Frost Penetration ◽  
Displacement Transducers

Frost heave measurements were taken over two winter seasons on a clay loam soil located near Ottawa, Canada. Heaving was measured using linear displacement transducers attached to a metal frame that was anchored in the soil below the depth of frost penetration. The output of the displacement transducer was recorded hourly using a microcomputer-based data logger. The system functioned reliably and the observed data compared well with published measurements.Soil temperature was recorded simultaneously using thermocouples. Time-domain reflectometry was used to measure the unfrozen water content. The study shows that soil temperature measurements can be used to estimate the temperature gradient at the freezing front for determining the cumulative frost heave, as suggested by the Konrad–Morgenstern theory of ice segregation processes. Key words: frost heave, temperature, gradient, displacement transducer, segregational potential.

Efficiency of Geosynthetic Lateral Drainage in Northern Climates

1996 ◽  
Vol 1534 (1) ◽  
pp. 12-18
Author(s):  
Jean Lafleur ◽  
Y. Savard
Keyword(s):  
Glacial Till ◽  
In Situ Monitoring ◽  
Frost Heave ◽  
Full Scale Test ◽  
Severe Damage ◽  
Flow Rates ◽  
Scale Test ◽  
Frost Penetration ◽  
Lateral Drainage

During winter the formation of ice lenses causes frost heave within frost-susceptible materials. The uneven spatial distribution of heave due to heterogeneity results in severe damage to the pavement. Fissures are created, favoring excess infiltration, especially during subsequent springtime thaw. The installation of drainage can be beneficial in reducing the amount of water present in road foundations. Some uncertainty, however, exists about the sources of water feeding the lenses and, therefore, the optimal location of the systems. To assess the efficiencies of deep lateral drainage systems, a full-scale test has been undertaken along an existing road constructed on a glacial till subgrade. Three 150-m-long vertical geocomposite systems were installed at depths ranging between 2 and 3 m. In situ monitoring included piezometers and frost indicators and measurements of flow rates and pavement heave. To obtain a point of comparison, the measurements started 1 year before drain installation. For the period of observation the freezing indexes ranged between 1432°C-day and 1558°C-day, and the maximum frost penetration was 2.5 m. The flow rates varied considerably with the seasons, ranging between 1 ml/sec/linear meter during winter and 10 ml/sec/m during the April thaw. Before drainage the heave values ranged between 50 and 150 mm. After installation they were reduced by a factor ranging between 10 and 50 percent.

The problem of primary frost heave with frost penetration

1995 ◽  
Vol 18 (12) ◽  
pp. 995-1011
Author(s):  
Zhengzhong Ding
Keyword(s):  
Frost Heave ◽  
Frost Penetration
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