Project name: Comparison test of high strain PDA equipment at a construction site in Ho Chi Minh City, Vietnam.
Test program: Testing of High Strain Bearing Capacity of Foundation Pile
Test time: November 24, 2022
Overview:
Local users in Vietnam initially reached a cooperative relationship with Sinorock. In order to verify the performance and accuracy of Sinorock's PDA products and to establish the rationality of Sinorock's products in local construction engineering test projects, this comparison activity was specially arranged.
In order to reflect the fairness of the comparison results, three engineering piles were prepared locally for corresponding bearing capacity tests, each pile was tested at the same time, and the test data were compared.
In addition, the Vietnamese side invited an American PDA expert to give on-site technical guidance, and Sinorock kept providing technical support online.
Test piles information:
| Pile No. |
Pile L |
outer diameter |
Inner Diameter |
Density |
Jc |
| C1-4 |
39.4 |
400 |
270 |
2550 |
0.4 |
| C2 |
35.5 |
350 |
220 |
2550 |
0.4 |
| C20 |
37.4 |
350 |
220 |
2550 |
0.4 |
Test Result:
Pile No.
Result |
C1-4 |
C2 |
C20 |
| another |
Sinorock |
another |
Sinorock |
another |
Sinorock |
| RMX |
126ton |
1233kN |
99ton |
948kN |
104ton |
1008kN |
| FMX |
157ton |
1457kN |
118ton |
1277kN |
112ton |
1480kN |
| VMX |
1.51m/s |
1.68m/s |
1.79m/s |
1.72m/s |
1.64m/s |
1.71m/s |
| TSX |
4.5MPa |
5.22Mpa |
4.8Mpa |
5.56MPa |
2.6MPa |
1.15MPa |
| CSX |
22.5MPa |
21.3Mpa |
19.9Mpa |
21.95Mpa |
16.9MPa |
25.4MPa |
Conclusion:
1. Judging from the calculation results of the bearing capacity, the difference between the calculation results of the two RMX is within 5%, which is almost the same.
2. Other test result data are also highly consistent.
3. They all show the bearing capacity information of the test piles very well.
4. The characteristics of various types of curves displayed on the equipment are highly consistent, especially the F-ZV curve shown in the picture.
5. The Sinorock device is operated and tested by the user alone. Compared with another device, PDA, which needs to be carried out by experts on site, the overall design and operating experience of Sinorock are more user-friendly, and easier to use.
User evaluation:
On site pictures:
Results：
