RSM-HGT(B) application and technical introduction 

RSM-HGT(B)Ultrasonic Drilling Monitor mainly apply for hole quality testing of bored piles on railway, highway, port, high-rise building and etc.Hole quality testing of branch and plate piles.Trenching quality testing of the groove of diaphragm wall.

It mainly uses the ultrasonic method, which is suitable for detecting verticality, aperture (groove width) and hole (groove) depth of the drilling, digging, punching concrete pouring pile and the underground continuous wall slot section of the mud retaining wall. Since ultrasonic waves propagate in the air, the energy decays quickly, so water or mud must be used for testing. The direction of vibration of the ultrasonic wave in the liquid is the same as the direction of propagation. It is a linear motion and belongs to the mechanical longitudinal wave. The energy and wave velocity are affected by the test distance, temperature and sand content. The farther the distance is, the larger the sand content is, and the more obvious the energy attenuation is. The basic method is to place the ultrasonic probe into a hole, and send ultrasonic waves to the surroundings to receive reflected waves.    

Ultrasonic testing equipment generally has an automatic mapping function. The software inside the instrument has calculated the distance measurement and the probe size, and can directly read the distance between the center of the transducer and the wall of the hole (slot) from the hole (groove) sectional view.




Precautions
1. Clean the cables on the winch with water when lifting cables.
2. Clean the probe after the test is completed;
3. Do not rinse the winch with water.
 
Report results
Geotech visited Sinorock on June 28 to conduct a field demonstration of the RSM-HGT(B) instrument and perform hole quality inspection on the bored pile. The test results are as follows:










Quality assurance

1. All equipment includes packaging box, software, materials, certificates, test certificates, etc.
2. The delivery time and place are subject to the requirements of user, and the cost is the responsibility of the manufacturer.
3. Equipment installation and commissioning fees and training fees are included in the bid price.
4. The instrument host is guaranteed for one year, with lifetime maintenance, and no additional cost will be charged for the maintenance of the goods provided during the warranty period. The replacement of components outside the warranty period will be charged of cost price. Both parties share the freight.
5. Assist users in field testing, data analysis and data organization by remote assistance.