Your browser doesn't support javascript. This means that the content or functionality of our website will be limited or unavailable. If you need more information about Vinnova, please contact us.

Seismic Imaging with a Hammer Drilling Source: SIHDS

Reference number
Coordinator Uppsala universitet - Institutionen för geovetenskaper
Funding from Vinnova SEK 483 201
Project duration August 2017 - March 2018
Status Completed
Venture The strategic innovation programme for Swedish mining and metal producing industry - SIP Swedish Mining Innovation

Purpose and goal

The goal of the feasibility study was to test if the signals from the Wassara hammer could be used for seismic imaging of the surrounding rock. The hammer hits during drilling should generate strong seismic signals in the rock. A test next to the Wassara factory with drilling down to 270 m shows that it is possible to use the hammer hits as a seismic source. Seismograms generated by correlation with the pilot signal from the hammer have a higher signal to noise ratio than those using a surface sensor. One problem is the exact timing of the hammer hits.

Expected results and effects

The test measurements show that it is possible to use the hammer hits as a seismic source. Further testing needs to be done over an area where there exists know structures that reflect seismic waves. Furthermore, the time synchronization of the pilot signal with the recording system needs to be improved.

Planned approach and implementation

At a meeting with Wassara the test measurements were using their drilling rig. The measurements were performed in early October just outside the back of the Wassara factory. The unit for registering the pilot signal from the hammer hits was connected to the drilling rig. Uppsala installed 84 stations for measuring ground velocity while drilling. Data from these stations were processed and correlated with the pilot signal and some selected surface stations.

The project description has been provided by the project members themselves and the text has not been looked at by our editors.

Last updated 25 November 2019

Reference number 2017-02191

Page statistics