China Pile Dynamic Equipment Pile Load Testing Instrument Deep Foundation Bearing Capacity Testing Load Testing of Piles Pile Driving Analyzer, Find details about China Pile Dynamic Equipment, Pile Load Testing Instrument from Pile Dynamic Equipment Pile Load Testing Instrument Deep Foundation Bearing Capacity Testing Load Testing of Piles Pile Driving Analyzer
Pile Dynamic Equipment Pile Load Testing Instrument Deep Foundation Bearing Capacity Testing Load Testing of Piles Pile Driving Analyzer
In the high strain method, a vertical transient impact load is applied to the pile top by the hammering system. The force acting on the pile top is close to the actual stress level of the pile, resulting in significant acceleration and inertia force. The strain of the pile body is equivalent to the strain level of the engineering pile. The impact force causes relative displacement between the pile and soil, so as to give full play to the pile side friction and stimulate the end resistance accordingly, Force and acceleration sensors are symmetrically installed on both sides of the pile at a certain distance from the pile top to measure the force and the response signal of the pile-soil system. The hammer response signal (pile strain stress curve and pile particle motion speed curve) is received through the foundation pile dynamic tester. Its dynamic response signal not only reflects the pile-soil characteristics, but also is closely related to the dynamic load intensity, spectrum composition and duration, Thus, the bearing capacity of single pile and the structural integrity of pile body are calculated and analyzed.
Technical Features
1. Original instantaneous floating point amplification technology can take into account the distortionless acquisition of strong and weak signals;
2. Removable lithium battery is provided, desktop charger is supported and spare battery can be provided to ensure that the field work will not be interrupted;
3. The bilingual operation in both Chinese and English is supported; 4. The balance of strain bridge can be adjusted automatically to reduce the impacts of initial deformation of strain ring on signal acquisition and eliminate the signal zero drift;
5. The three-dimensional correction function for shallow defect is owned and the defect can be located accurately;
6. Built-in Bluetooth and WIFI can realize the function of real-time monitoring of wireless uploading;
7. With fast signal acquisition pace, the 60 hammers/min signal acquisition can be completed and the piling monitoring testing can be carried out in real time;
8. 8.4-inch true-color LCD screen is used, the curve is clear and intuitive and the backlight can be adjusted;
9. Portable high-strength engineering plastic shell with small volume and light weight can make operation easy;
10. 24-bit A/D combination design has large dynamic range and high signal to noise ratio;
11. Self-test for sensor installation status can be conducted in the field in real time;
12. Touch screen operation, friendly software interface and easy operation;
13. Analysis results by Case method, F-ZV curves and upper and lower traveling wave curves are displayed in the field;
14. With adjustable screen brightness, it can be used in a variety of lighting conditions;
15. Background color and curve color can be adjusted to meet customer needs.
Model | GD-PDT(B) High Strain |
Display method | 8.4-inch true-color LCD screen Resolution: 800×600 (adjustable backlight) |
Storage capacity | 16G electronic hard disk |
Master control system | Low power embedded system Basic frequency≥1GHz Memory: 512M |
Sampling interval | High strain: 10-500μs multi-level adjustable Low strain: 5-1000μs continuous adjustable |
Floating point magnification | 1~256 |
Recording length | 1k |
A/D conversion accuracy | 24-bit instantaneous floating point |
System noise voltage | <20μV |
Dynamic range | ≥100dB |
Data export method | USB |
Frequency bandwidth | 2~12000Hz |
Sensor bandwidth | 0.5~9000Hz |
Power supply mode | Removable lithium battery; desktop charger is supported Service life≥8h |
Operation mode | Touch screen |
Number of channels | High strain: four channels Low strain: one channel |