Grouting Reinforcement of Large Building Foundation over Old Gob Areas: A Case Study in Huaibei Mining Area, China
There are more than 14,000 square kilometers of mining subsidence areas in China, most of which have been reclaimed for the construction of new buildings. In the past, few special measures were required for the foundations of small buildings above old gob areas. But a plan was created to construct a...
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| Format: | Article |
| Language: | English |
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Wiley
2018-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2018/8738752 |
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| author | Wenyan Guo Shiqi Liu Bingnan Hu Yanchun Xu Yaqi Luo |
| author_facet | Wenyan Guo Shiqi Liu Bingnan Hu Yanchun Xu Yaqi Luo |
| author_sort | Wenyan Guo |
| collection | DOAJ |
| description | There are more than 14,000 square kilometers of mining subsidence areas in China, most of which have been reclaimed for the construction of new buildings. In the past, few special measures were required for the foundations of small buildings above old gob areas. But a plan was created to construct a large office building 100 m in length, 90 m in width, and 100 m in height, above old gob areas in the Huaibei subsidence area. However, the results of exploration borehole data and borehole TV observation indicated a broken bedrock stratum and developmental fractures above the old gob areas, and thus, the space stabilities of the building foundation were poor. Therefore, grouting reinforcement measure was adopted for the old gob and foundation areas. And the grouting effect was examined using borehole TV observation and the water injection test, where the detection results of boreholes TV observation showed that the filling ratio of the stratum fracture was over 85%, and the stability of the foundation was obviously enhanced. In addition, we monitored the settlement of the foundation continuously for 930 days. The results show that the maximum cumulative subsidence was 15.3 mm and the maximum slope was 0.05 mm/m, which verifies that grouting reinforcement is feasible in terms of the safety of large buildings constructed over old gob areas using bedrock stratum grouting in the Huaibei subsidence area. |
| format | Article |
| id | doaj-art-9ee56cf47eb441998b055346b5a6ee86 |
| institution | Kabale University |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-9ee56cf47eb441998b055346b5a6ee862025-02-03T01:28:48ZengWileyAdvances in Civil Engineering1687-80861687-80942018-01-01201810.1155/2018/87387528738752Grouting Reinforcement of Large Building Foundation over Old Gob Areas: A Case Study in Huaibei Mining Area, ChinaWenyan Guo0Shiqi Liu1Bingnan Hu2Yanchun Xu3Yaqi Luo4School of Resources and Safety Engineering, China University of Mining and Technology, Beijing 100083, ChinaSchool of Resources and Safety Engineering, China University of Mining and Technology, Beijing 100083, ChinaNational Key Lab of Coal Resources High Efficient Mining and Clean Utilization, China Coal Research Institute, Beijing 100013, ChinaSchool of Resources and Safety Engineering, China University of Mining and Technology, Beijing 100083, ChinaSchool of Resources and Safety Engineering, China University of Mining and Technology, Beijing 100083, ChinaThere are more than 14,000 square kilometers of mining subsidence areas in China, most of which have been reclaimed for the construction of new buildings. In the past, few special measures were required for the foundations of small buildings above old gob areas. But a plan was created to construct a large office building 100 m in length, 90 m in width, and 100 m in height, above old gob areas in the Huaibei subsidence area. However, the results of exploration borehole data and borehole TV observation indicated a broken bedrock stratum and developmental fractures above the old gob areas, and thus, the space stabilities of the building foundation were poor. Therefore, grouting reinforcement measure was adopted for the old gob and foundation areas. And the grouting effect was examined using borehole TV observation and the water injection test, where the detection results of boreholes TV observation showed that the filling ratio of the stratum fracture was over 85%, and the stability of the foundation was obviously enhanced. In addition, we monitored the settlement of the foundation continuously for 930 days. The results show that the maximum cumulative subsidence was 15.3 mm and the maximum slope was 0.05 mm/m, which verifies that grouting reinforcement is feasible in terms of the safety of large buildings constructed over old gob areas using bedrock stratum grouting in the Huaibei subsidence area.http://dx.doi.org/10.1155/2018/8738752 |
| spellingShingle | Wenyan Guo Shiqi Liu Bingnan Hu Yanchun Xu Yaqi Luo Grouting Reinforcement of Large Building Foundation over Old Gob Areas: A Case Study in Huaibei Mining Area, China Advances in Civil Engineering |
| title | Grouting Reinforcement of Large Building Foundation over Old Gob Areas: A Case Study in Huaibei Mining Area, China |
| title_full | Grouting Reinforcement of Large Building Foundation over Old Gob Areas: A Case Study in Huaibei Mining Area, China |
| title_fullStr | Grouting Reinforcement of Large Building Foundation over Old Gob Areas: A Case Study in Huaibei Mining Area, China |
| title_full_unstemmed | Grouting Reinforcement of Large Building Foundation over Old Gob Areas: A Case Study in Huaibei Mining Area, China |
| title_short | Grouting Reinforcement of Large Building Foundation over Old Gob Areas: A Case Study in Huaibei Mining Area, China |
| title_sort | grouting reinforcement of large building foundation over old gob areas a case study in huaibei mining area china |
| url | http://dx.doi.org/10.1155/2018/8738752 |
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