Experimental Study on the Shearing Behaviour on the Interface between Coarse Sand and Concrete under High Stress
The shear behaviour on the interface between soil and structure is a research hot point. Based on the RMT-150B rock mechanics test system, a series of high-stress direct tests were performed on the coarse sand under the condition of different moisture contents and concrete substrates with different...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2021-01-01
|
| Series: | Geofluids |
| Online Access: | http://dx.doi.org/10.1155/2021/9982235 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850175105058996224 |
|---|---|
| author | Junkun Tan Jiaqi Guo Shifan Qiao Changrui Dong Ziyong Cai Gang Wang |
| author_facet | Junkun Tan Jiaqi Guo Shifan Qiao Changrui Dong Ziyong Cai Gang Wang |
| author_sort | Junkun Tan |
| collection | DOAJ |
| description | The shear behaviour on the interface between soil and structure is a research hot point. Based on the RMT-150B rock mechanics test system, a series of high-stress direct tests were performed on the coarse sand under the condition of different moisture contents and concrete substrates with different rough and hardness. The results showed that the shear stress-displacement curve and volumetric strain-displacement curve of the interface under high stress could be fitted by a hyperbolic model; the ultimate shear strength and initial shear stiffness of the interface both increased with the normal stress while the shear stiffness decreased with the shear displacement. The crushing rate of the coarse sand particles on the interface increased with the normal stress. After the range analysis for the influencing factors of the interface’s shearing behaviour, it was shown that for the ultimate shear strength, their sequence of influencing degree was normal stress, the roughness of interface, moisture content, and hardness of concrete base; for the initial shear strength, the sequence was normal stress, moisture content, interface roughness, and basal hardness. As for dry sand, the possibility of relative particle crushing was higher than that of sand with a moisture content of 8%, and a peak of crushing occurred when the moisture content was 16%. |
| format | Article |
| id | doaj-art-d74f0bc8abc548b28f1d61e0a1d271f9 |
| institution | OA Journals |
| issn | 1468-8115 1468-8123 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geofluids |
| spelling | doaj-art-d74f0bc8abc548b28f1d61e0a1d271f92025-08-20T02:19:31ZengWileyGeofluids1468-81151468-81232021-01-01202110.1155/2021/99822359982235Experimental Study on the Shearing Behaviour on the Interface between Coarse Sand and Concrete under High StressJunkun Tan0Jiaqi Guo1Shifan Qiao2Changrui Dong3Ziyong Cai4Gang Wang5Department of Civil Engineering, Central South University, Changsha 410075, ChinaDepartment of Civil Engineering, Henan Polytechnic University, Jiaozuo 454000, ChinaDepartment of Civil Engineering, Central South University, Changsha 410075, ChinaDepartment of Civil Engineering, Central South University, Changsha 410075, ChinaDepartment of Civil Engineering, Central South University, Changsha 410075, ChinaDepartment of Civil Engineering, Central South University, Changsha 410075, ChinaThe shear behaviour on the interface between soil and structure is a research hot point. Based on the RMT-150B rock mechanics test system, a series of high-stress direct tests were performed on the coarse sand under the condition of different moisture contents and concrete substrates with different rough and hardness. The results showed that the shear stress-displacement curve and volumetric strain-displacement curve of the interface under high stress could be fitted by a hyperbolic model; the ultimate shear strength and initial shear stiffness of the interface both increased with the normal stress while the shear stiffness decreased with the shear displacement. The crushing rate of the coarse sand particles on the interface increased with the normal stress. After the range analysis for the influencing factors of the interface’s shearing behaviour, it was shown that for the ultimate shear strength, their sequence of influencing degree was normal stress, the roughness of interface, moisture content, and hardness of concrete base; for the initial shear strength, the sequence was normal stress, moisture content, interface roughness, and basal hardness. As for dry sand, the possibility of relative particle crushing was higher than that of sand with a moisture content of 8%, and a peak of crushing occurred when the moisture content was 16%.http://dx.doi.org/10.1155/2021/9982235 |
| spellingShingle | Junkun Tan Jiaqi Guo Shifan Qiao Changrui Dong Ziyong Cai Gang Wang Experimental Study on the Shearing Behaviour on the Interface between Coarse Sand and Concrete under High Stress Geofluids |
| title | Experimental Study on the Shearing Behaviour on the Interface between Coarse Sand and Concrete under High Stress |
| title_full | Experimental Study on the Shearing Behaviour on the Interface between Coarse Sand and Concrete under High Stress |
| title_fullStr | Experimental Study on the Shearing Behaviour on the Interface between Coarse Sand and Concrete under High Stress |
| title_full_unstemmed | Experimental Study on the Shearing Behaviour on the Interface between Coarse Sand and Concrete under High Stress |
| title_short | Experimental Study on the Shearing Behaviour on the Interface between Coarse Sand and Concrete under High Stress |
| title_sort | experimental study on the shearing behaviour on the interface between coarse sand and concrete under high stress |
| url | http://dx.doi.org/10.1155/2021/9982235 |
| work_keys_str_mv | AT junkuntan experimentalstudyontheshearingbehaviourontheinterfacebetweencoarsesandandconcreteunderhighstress AT jiaqiguo experimentalstudyontheshearingbehaviourontheinterfacebetweencoarsesandandconcreteunderhighstress AT shifanqiao experimentalstudyontheshearingbehaviourontheinterfacebetweencoarsesandandconcreteunderhighstress AT changruidong experimentalstudyontheshearingbehaviourontheinterfacebetweencoarsesandandconcreteunderhighstress AT ziyongcai experimentalstudyontheshearingbehaviourontheinterfacebetweencoarsesandandconcreteunderhighstress AT gangwang experimentalstudyontheshearingbehaviourontheinterfacebetweencoarsesandandconcreteunderhighstress |