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EPC Industry Information
Pile Dynamics- Standard Penetration Test (SPT) Analyzer
發(fā)布時間：2021-04-16 瀏覽次數(shù)：4735 來源：EPC
 
 
 
Pile Dynamics
Standard Penetration Test (SPT) Analyzer
 
What is SPT?
 

 
 
The Standard Penetration Test (SPT) is a
widely-employed soil exploration tool that
involves using an SPT hammer to drive a
split sampler at the bottom of a drill string
to obtain soil samples. The number of blows
required to penetrate the last 300mm (1ft) is
the “N value” which is related to soil strength
 
Standard for SPT in Hong Kong is BS 1377: 1990
 

Pile Dynamics- Standard Penetration Test (SPT) Analyzer
 
 
  • Determines energy transferred by SPT Hammers using force and velocity measurements
  • Offers simplified reporting and analysis options to speed testing results
  • Determines N Value to help improve reliability of soil strength estimates
  • Operates in English, SI, or Metric units
 
 
EN ISO 22486-3:2005/ASTM Compliant

The SPT Analyzer is compliant with EN ISO 22476-3:2005. ASTM D1586 recommends normalizing results from any SPT test using energy measurements.
 
When these tests are performed to determine the liquefaction potential of sands, ASTM D6066 not only recommends but mandates the normalization. ASTM D4633 states that the only acceptable method of determining energy for normalization of N values is by force and velocity measurements
 
 
 
 
This instrument includes a subassembly of an SPT rod that is instrumented with two strain gage bridges and two piezoresistive accelerometers. These sensors obtain the force and velocity signals necessary for the calculation of transferred energy and transfer them to the SPT Analyzer.
 
The latest model of SPT Analyzer has a touch screen visible in all lighting conditions and responsive to gestures like pinch and zoom. Data analysis and reporting have been substantially updated for ease of use and faster output.
 

Case Study
Application in
Hong Kong-Zhuhai-Macao Bridge
 
The Standard Penetration Analyzer (SPT Analyzer) was using in the geological survey projects for the tunnel Island.
 
 
 
 
 
 
Using the Pile Dynamics SPT Analyzer
 
 
 
 
Make a call to us on: 
(852) 2392-8698
For Product Enquiry:

hkmarketing@epc.com.hk
 
or by reply this email
 
 
 
 

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