Abstract
The subgrade reaction modulus for rock foundations under axial loading is investigated by model footing tests. This study focuses on quantifying a new subgrade reaction modulus by considering rock discontinuities. A series of model-scale footing tests are performed to investigate the effects of the unconfined compressive strength, discontinuity spacing and inclination of the rock joint. Based on the experimental results, it is observed that the subgrade reaction modulus of the rock with discontinuities decreases by up to approximately 60 % of intact rock. In addition, it is found that the modulus of subgrade reaction is proportional to the discontinuity spacing, and it decreases gradually within the range of 0°−30° and tends to increase within the range of 30°−90°.
| Original language | English |
|---|---|
| Pages (from-to) | 2055-2064 |
| Number of pages | 10 |
| Journal | Rock Mechanics and Rock Engineering |
| Volume | 49 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 2016 Jun |
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All Science Journal Classification (ASJC) codes
- Civil and Structural Engineering
- Geotechnical Engineering and Engineering Geology
- Geology
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Experimental study of estimating the subgrade reaction modulus on jointed rock foundations. / Lee, Jaehwan; Jeong, Sangseom.
In: Rock Mechanics and Rock Engineering, Vol. 49, No. 6, 06.2016, p. 2055-2064.Research output: Contribution to journal › Article
TY - JOUR
T1 - Experimental study of estimating the subgrade reaction modulus on jointed rock foundations
AU - Lee, Jaehwan
AU - Jeong, Sangseom
PY - 2016/6
Y1 - 2016/6
N2 - The subgrade reaction modulus for rock foundations under axial loading is investigated by model footing tests. This study focuses on quantifying a new subgrade reaction modulus by considering rock discontinuities. A series of model-scale footing tests are performed to investigate the effects of the unconfined compressive strength, discontinuity spacing and inclination of the rock joint. Based on the experimental results, it is observed that the subgrade reaction modulus of the rock with discontinuities decreases by up to approximately 60 % of intact rock. In addition, it is found that the modulus of subgrade reaction is proportional to the discontinuity spacing, and it decreases gradually within the range of 0°−30° and tends to increase within the range of 30°−90°.
AB - The subgrade reaction modulus for rock foundations under axial loading is investigated by model footing tests. This study focuses on quantifying a new subgrade reaction modulus by considering rock discontinuities. A series of model-scale footing tests are performed to investigate the effects of the unconfined compressive strength, discontinuity spacing and inclination of the rock joint. Based on the experimental results, it is observed that the subgrade reaction modulus of the rock with discontinuities decreases by up to approximately 60 % of intact rock. In addition, it is found that the modulus of subgrade reaction is proportional to the discontinuity spacing, and it decreases gradually within the range of 0°−30° and tends to increase within the range of 30°−90°.
UR - http://www.scopus.com/inward/record.url?scp=84955257459&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84955257459&partnerID=8YFLogxK
U2 - 10.1007/s00603-015-0905-9
DO - 10.1007/s00603-015-0905-9
M3 - Article
AN - SCOPUS:84955257459
VL - 49
SP - 2055
EP - 2064
JO - Rock Mechanics and Rock Engineering
JF - Rock Mechanics and Rock Engineering
SN - 0723-2632
IS - 6
ER -