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Nhan đề: Study on Bearing Capacity of Bored Cast-in-Situ Piles by Post Pressure Grouting
Tác giả: Fu, Xudong
Zhou, Zhengbing
Từ khoá: Pressure pipes
Pipe piles
Concrete piles
Load bearing capacity
Bored piles
Grouting
Pile tests
Năm xuất bản: 2003
Tóm tắt: Bearing capacity of bored cast-in-situ piles by post pressure grouting can be effectively improved through the grout pipes placed within the piles when concrete is 10–20 days old. Based on tests for seven grouted piles respectively cast in the bearing layers of sand and clay, this paper summarized the process of pressure grouting and investigated in-situ tests of these grouted piles. The principles of controlling the maximum of grouting pressure and the volume of grout injected were also presented in this paper. The interactions between improved skin friction and end resistance of grouted piles were studied. All piles by pressure post-grouting proved completely satisfactory in performance of bearing capacity even when the ultimate load is up to twice or more. The results show that post pressure grouting is an effective method to improve bearing capacity of ordinary bored cast-in-situ piles
Mô tả: Third International Conference on Grouting and Ground Treatment February 10-12, 2003 | New Orleans, Louisiana, United States © 2003 American Society of Civil Engineers
Định danh: http://10.1.1.57:8888/dspace/handle/hau/5742
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