A vibratory source for generating seismic signals includes a baseplate, and a lift and hydraulic actuator system configured to actuate the baseplate to impart seismic waves into the ground. The baseplate includes plural individual plates for contacting the ground.

A vibratory source for generating seismic signals includes a baseplate, and a lift and hydraulic actuator system configured to actuate the baseplate to impart seismic waves into the ground. The baseplate includes plural individual plates for contacting the ground.

An autonomous underwater seismic wave generation system includes a housing, and an autonomous navigation system, a propulsion system and a seismic wave generator, each connected to the housing. The autonomous navigation system can navigate the autonomous underwater seismic wave generation system to subsea locations including a location on a seabed. The propulsion system can drive the autonomous underwater seismic wave generation system to the location on the seabed. The seismic wave generator can couple to the location on the seabed to generate seismic waves at the location on the seabed.

There is disclosed a device for use in evaluating the integrity of soil behind a wall of an infrastructure. The device generally has a frame having a plurality of rests adapted to be received onto the wall during use; a hammer assembly having an actuator fixedly mounted to the frame and a hammer element having a head movably mounted to the frame, the actuator being actuatable to move the head to strike the wall while the plurality of rests hold the frame in a fixed position relative to the wall; and a sensor configured and adapted to sense vibrations of a portion of the wall resulting from the strike and to generate a vibration signal indicative thereof.

A seismic source system uses at least one seismic source, a screw in piling ground anchor installed into the earth/ground and means of coupling the energy from the seismic source to the screw in piling ground anchor.

A seismic source system uses at least one seismic source, a screw in piling ground anchor installed into the earth/ground and means of coupling the energy from the seismic source to the screw in piling ground anchor.

A vibratory source for generating seismic signals includes a baseplate, and a lift and hydraulic actuator system configured to actuate the baseplate to impart seismic waves into the ground. The baseplate includes plural individual plates for contacting the ground.

A vibratory source for generating seismic signals includes a baseplate, and a lift and hydraulic actuator system configured to actuate the baseplate to impart seismic waves into the ground. The baseplate includes plural individual plates for contacting the ground.

It is proposed a positioning assistance system for a vibrator truck, that is configured to determine a vibration point distance between the vibrator truck and the vibration point location; determine a stopping distance for stopping the vibrator truck at a vibration point location, according to a determined current speed of the vibrator truck and according to a speed profile; determine a time for stopping the vibrator truck at the vibration point location according to the current speed of the vibrator truck, when the stopping distance corresponds to said vibration point distance; and trigger the lifting down of the baseplate of the vibratory system, when at least the following condition is met: said stopping time is inferior or equal to a time for lifting down the vibratory system to the ground. Corresponding vibrator truck and method are also proposed.

A seismic source apparatus, configured to be maneuvered by a vehicle over terrain.