Behavior of Single Micropile Under Different Lateral Load Rates
This paper displays an empirical work of a micropile inserted in the dry river sand with different length to diameter (L/D) ratios (13, 15, 27, 42, and 50). The experimental work is executed on the models of micropile to imitate the side force motion, acting on the micropile head to explain the micr...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Unviversity of Technology- Iraq
2021-02-01
|
| Series: | Engineering and Technology Journal |
| Subjects: | |
| Online Access: | https://etj.uotechnology.edu.iq/article_168101_3f7abc51fad1ea542f40903e45472eec.pdf |
| _version_ | 1797336520119549952 |
|---|---|
| author | Mohammed A. Al-Neami Husam H. Baqir Saif H. Hameed |
| author_facet | Mohammed A. Al-Neami Husam H. Baqir Saif H. Hameed |
| author_sort | Mohammed A. Al-Neami |
| collection | DOAJ |
| description | This paper displays an empirical work of a micropile inserted in the dry river sand with different length to diameter (L/D) ratios (13, 15, 27, 42, and 50). The experimental work is executed on the models of micropile to imitate the side force motion, acting on the micropile head to explain the micropile conduct due to the different side force rates. Forty-five models are tested (eighteen models for short pile, eighteen model for long pile and nine models for intermediate) embedded in different relative densities of sandy soil. The results illustrate that for the same relative density, the lateral load is decreased when the moving rate increasing from (3.37 to 3.97 then 4.59 mm/min), that means frequency (0.55 to 0.65 then 0.75 Hz), respectively.At the same moving rate of horizontal loading, the value of lateral load increased with the increase of horizontal displacement until reach to the 12mm at the end of the test. The duration of the test decreased with the increase of moving rate and the maximum duration of the test recorded for micropile model has (L/D) of 50 with 75% relative density when the moving rate of lateral load is 3.37 mm/min. Also, it is found that the duration of the test increases when the relative density increased at the same moving rate. |
| first_indexed | 2024-03-08T08:54:43Z |
| format | Article |
| id | doaj.art-b21074fb6e8d4bd4a05911df8241bc9b |
| institution | Directory Open Access Journal |
| issn | 1681-6900 2412-0758 |
| language | English |
| last_indexed | 2024-03-08T08:54:43Z |
| publishDate | 2021-02-01 |
| publisher | Unviversity of Technology- Iraq |
| record_format | Article |
| series | Engineering and Technology Journal |
| spelling | doaj.art-b21074fb6e8d4bd4a05911df8241bc9b2024-02-01T07:17:10ZengUnviversity of Technology- IraqEngineering and Technology Journal1681-69002412-07582021-02-01392A16717910.30684/etj.v39i2A.654168101Behavior of Single Micropile Under Different Lateral Load RatesMohammed A. Al-Neami0Husam H. Baqir1Saif H. Hameed2Civil Engineering Department, University of Technology, Baghdad, Iraq. 40008@uotechnology.edu.iqCivil Engineering Department, University of Technology, Baghdad, Iraq. 40161@uotechnology.edu.iqCivil Engineering Department, University of Technology, Baghdad, Iraq. 42143@student.uotechnology.edu.iq.This paper displays an empirical work of a micropile inserted in the dry river sand with different length to diameter (L/D) ratios (13, 15, 27, 42, and 50). The experimental work is executed on the models of micropile to imitate the side force motion, acting on the micropile head to explain the micropile conduct due to the different side force rates. Forty-five models are tested (eighteen models for short pile, eighteen model for long pile and nine models for intermediate) embedded in different relative densities of sandy soil. The results illustrate that for the same relative density, the lateral load is decreased when the moving rate increasing from (3.37 to 3.97 then 4.59 mm/min), that means frequency (0.55 to 0.65 then 0.75 Hz), respectively.At the same moving rate of horizontal loading, the value of lateral load increased with the increase of horizontal displacement until reach to the 12mm at the end of the test. The duration of the test decreased with the increase of moving rate and the maximum duration of the test recorded for micropile model has (L/D) of 50 with 75% relative density when the moving rate of lateral load is 3.37 mm/min. Also, it is found that the duration of the test increases when the relative density increased at the same moving rate.https://etj.uotechnology.edu.iq/article_168101_3f7abc51fad1ea542f40903e45472eec.pdfmicropilelateral loaddisplacementmoving rate |
| spellingShingle | Mohammed A. Al-Neami Husam H. Baqir Saif H. Hameed Behavior of Single Micropile Under Different Lateral Load Rates Engineering and Technology Journal micropile lateral load displacement moving rate |
| title | Behavior of Single Micropile Under Different Lateral Load Rates |
| title_full | Behavior of Single Micropile Under Different Lateral Load Rates |
| title_fullStr | Behavior of Single Micropile Under Different Lateral Load Rates |
| title_full_unstemmed | Behavior of Single Micropile Under Different Lateral Load Rates |
| title_short | Behavior of Single Micropile Under Different Lateral Load Rates |
| title_sort | behavior of single micropile under different lateral load rates |
| topic | micropile lateral load displacement moving rate |
| url | https://etj.uotechnology.edu.iq/article_168101_3f7abc51fad1ea542f40903e45472eec.pdf |
| work_keys_str_mv | AT mohammedaalneami behaviorofsinglemicropileunderdifferentlateralloadrates AT husamhbaqir behaviorofsinglemicropileunderdifferentlateralloadrates AT saifhhameed behaviorofsinglemicropileunderdifferentlateralloadrates |