Strength and Cost Analysis of New Steel Sets as Roadway Support Project in Coal Mines
Roadway support in swelling soft rocks in coal mines has become a critical challenge in recent years. For deformation control in swelling soft rocks, high strength sets are preferred in sites. But high strength always means high costs. Therefore, higher strength sets with not too much cost will be m...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2018-01-01
|
| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2018/3927843 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832560438339960832 |
|---|---|
| author | Qinghai Li Renshu Yang Jingkai Li He Wang Zhijie Wen |
| author_facet | Qinghai Li Renshu Yang Jingkai Li He Wang Zhijie Wen |
| author_sort | Qinghai Li |
| collection | DOAJ |
| description | Roadway support in swelling soft rocks in coal mines has become a critical challenge in recent years. For deformation control in swelling soft rocks, high strength sets are preferred in sites. But high strength always means high costs. Therefore, higher strength sets with not too much cost will be more welcomed in situ. Based on this, three new sets, including a floor beam set, a roof + floor beams set, and a roof + floor beams + braces set, have been developed in the present research. Strength comparisons and costs comparisons have been conducted in this research. Results illustrate that compared with the original set, in the floor beam set, the relative strength of bottom corners reaches 2.964, while the relative cost reaches 1.294; compared with the original set, in the roof + floor beams set, the relative strength of the top arch reaches 2.345, while the relative strength of bottom corners reaches 2.964, and the relative cost reaches 1.568; and compared with the original set, in the roof + floor beams + braces set, the relative strength of the top arch reaches 2.635, and the relative strength of bottom corners reaches 5.905, but the relative cost reaches 1.930. Floor beam set and roof + floor beams set illustrate higher strength and not too higher costs than the original set. Although the roof + floor beams + braces set exhibit much higher strength, they also demonstrate much higher costs than the original set. These new sets can be chosen according to different geological conditions in situ. |
| format | Article |
| id | doaj-art-43a52f8d0fd5477c98a08fa215397da3 |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-43a52f8d0fd5477c98a08fa215397da32025-02-03T01:27:33ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422018-01-01201810.1155/2018/39278433927843Strength and Cost Analysis of New Steel Sets as Roadway Support Project in Coal MinesQinghai Li0Renshu Yang1Jingkai Li2He Wang3Zhijie Wen4State Key Laboratory of Mining Disaster Prevention and Control Co-Founded by Shandong Province and the Ministry of Science and Technology, Shandong University of Science and Technology, Qingdao 266590, ChinaSchool of Mechanics and Civil Engineering, China University of Mining and Technology (Beijing), Beijing 100083, ChinaState Key Laboratory of Mining Disaster Prevention and Control Co-Founded by Shandong Province and the Ministry of Science and Technology, Shandong University of Science and Technology, Qingdao 266590, ChinaState Key Laboratory of Mining Disaster Prevention and Control Co-Founded by Shandong Province and the Ministry of Science and Technology, Shandong University of Science and Technology, Qingdao 266590, ChinaState Key Laboratory of Mining Disaster Prevention and Control Co-Founded by Shandong Province and the Ministry of Science and Technology, Shandong University of Science and Technology, Qingdao 266590, ChinaRoadway support in swelling soft rocks in coal mines has become a critical challenge in recent years. For deformation control in swelling soft rocks, high strength sets are preferred in sites. But high strength always means high costs. Therefore, higher strength sets with not too much cost will be more welcomed in situ. Based on this, three new sets, including a floor beam set, a roof + floor beams set, and a roof + floor beams + braces set, have been developed in the present research. Strength comparisons and costs comparisons have been conducted in this research. Results illustrate that compared with the original set, in the floor beam set, the relative strength of bottom corners reaches 2.964, while the relative cost reaches 1.294; compared with the original set, in the roof + floor beams set, the relative strength of the top arch reaches 2.345, while the relative strength of bottom corners reaches 2.964, and the relative cost reaches 1.568; and compared with the original set, in the roof + floor beams + braces set, the relative strength of the top arch reaches 2.635, and the relative strength of bottom corners reaches 5.905, but the relative cost reaches 1.930. Floor beam set and roof + floor beams set illustrate higher strength and not too higher costs than the original set. Although the roof + floor beams + braces set exhibit much higher strength, they also demonstrate much higher costs than the original set. These new sets can be chosen according to different geological conditions in situ.http://dx.doi.org/10.1155/2018/3927843 |
| spellingShingle | Qinghai Li Renshu Yang Jingkai Li He Wang Zhijie Wen Strength and Cost Analysis of New Steel Sets as Roadway Support Project in Coal Mines Advances in Materials Science and Engineering |
| title | Strength and Cost Analysis of New Steel Sets as Roadway Support Project in Coal Mines |
| title_full | Strength and Cost Analysis of New Steel Sets as Roadway Support Project in Coal Mines |
| title_fullStr | Strength and Cost Analysis of New Steel Sets as Roadway Support Project in Coal Mines |
| title_full_unstemmed | Strength and Cost Analysis of New Steel Sets as Roadway Support Project in Coal Mines |
| title_short | Strength and Cost Analysis of New Steel Sets as Roadway Support Project in Coal Mines |
| title_sort | strength and cost analysis of new steel sets as roadway support project in coal mines |
| url | http://dx.doi.org/10.1155/2018/3927843 |
| work_keys_str_mv | AT qinghaili strengthandcostanalysisofnewsteelsetsasroadwaysupportprojectincoalmines AT renshuyang strengthandcostanalysisofnewsteelsetsasroadwaysupportprojectincoalmines AT jingkaili strengthandcostanalysisofnewsteelsetsasroadwaysupportprojectincoalmines AT hewang strengthandcostanalysisofnewsteelsetsasroadwaysupportprojectincoalmines AT zhijiewen strengthandcostanalysisofnewsteelsetsasroadwaysupportprojectincoalmines |