GEO-Instruments Products

Technology regarding the measurement of drilling parameters consists of measuring and recording physical values in real time, the variations of which are in correlation with geomechanical properties of crossed soil. The physical values considered as the most characteristic drilling parameters are depth, instantaneous advance speed, thrust and restraint pressure, water pressure, torque, rotary speed, vibralog (reflected percussion wave), and flow rates of water, mud and air. All these parameters are recorded and can be transferred to a PC for processing or edited in real time if an integrated graphic printer system is used.

Inspired by the technology used by petrol companies in diverted drilling, the TIGOR is a instrumented drilling rod including the deviation measure sensors, and embarked electronics and batteries. The system compromises a 1 meter long magnetic rod and is available in 2 versions, single jet and double jet. The single jet version includes a central conduit that allows the drilling fluid or high pressure grout to pass through the TIGOR to the jet. The double jet version includes a central conduit that allows the drilling fluid or high pressure grout to pass through the TIGOR to the jet, and a lateral conduit for the passage of air to the second jet.

This technique is adopted in several cases in order to drive sheet piles into the ground. It is usually used in the field of hydraulic engineering, along water courses, near lakes and ponds, for maritime work and in the fields of civil and industrial engineering. Our monitoring systems can simultaneously measure and record depth, driving rate, grout pressure and volume, and vibration characteristics.

The PREVO is a Pressure Volume Controller (CPV) for the measurement of ground geomechanical properties according to the principle of the expansion of a cylindrical cavity. Power supplied by the rig battery and a compressed air bottle, the PREVO servovalves regulate the pressure levels of the test automatically. The stress applied (during the stages or in between the stages) is perfectly controlled by the PREVO regulation, working in a closed loop. The upholding of the stress is fully controlled and in spite of this solicitation it remains independent from the ground reaction. The stress procedure (stage, time) can be either manually controlled by the operation or automatically driven by a BAP160 connected to the PREVO.

Flight auger piling requires the control of parameters in real time in order to ensure that the pile has been correctly carried out. Real time information is needed on concrete pressure and volume, over-consumption of concrete, mast verticality, and depth. Indeed, the risks involved with such piles are either the cutting of the pile because of an accidental lack of concrete or too much pressure in the soil, or the extravagant overconsumption of concrete.

In continuous flight auger piling (CFA), the TARALOG is the measuring device. The measured parameters in the drilling phase are depth, rotation (RPM), torque pressure, and mast inclination. The measured parameters in the concrete phase are concrete flow and volume, concrete pressure etc. The TARALOG has a graphic screen. It develops the pile profile in real time, as it is being done, in order to help the driller keep to the limits of pressure and overconsumption of concrete. These recorded parameters are edited onto the computer to develop the pile log. The TARALOG can also be installed on cranes with swinging leads.

Jetgrouting consists of injecting cement grout into the soil under very high pressure. Under the effect of the jet, the ground is destroyed and then mixed with cement. This process is used with rods which rotate and go back up to the surface during drilling, in order to make a column. In bijet, two fluids and air under pressure are simultaneously injected. This is done in order to concentrate the jet cone and thus improve efficiency by concentrating the energy. In trijet, three fluids are injected. Our robust instrumentation is well equiped for all your measuring, recording, and automation needs during this process. Our real time graphic recordings and software reports provide you with this information while the work is still in progress.

In low pressure grouting techniques, instrumentation for improving or strengthening the soil assures the following points, including the measurement of parameters in every grouting line: pressure, flowrate, and volume. The finding out of grouting conditions, especially the injected volume. Automatic control of the pumps in order to stop the grouting process at defined criteria: maximum pressure, volume or GIN method. This method combines the values of pressure and injected volume in order to decide on when the grouting is finished. Edition of a document at the end of each injected sleeve on which the main grouting characteristics are printed. This document is called the sleeve ticket. Finally, it is necessary to have software at one's disposal in order to be able to easily assess, sort out and analyze grouting results. We offer a complete range of equipment including a single pump up to twelve pumps. Our robust instrumentation is well equipped for all your measuring, recording, and automation needs during this process. Our real time graphic recordings and software reports provide you with this information while the work is still in progress.

The range of our extremely robust drill monitoring instrumentation corresponds to various needs for measuring, recording, and automation in foundation engineering. Real time graphic recordings and software reports provide a protocol on the work in progress. This instrumentation is suitable for work under extreme environmental conditions and can be operated easily by rig operators. Each foundation process, including pile driving (using mechanical devices to drive piles into soil to provide foundation support for buildings or other structures), has an associated software which analyses the measurement data and produces reports which summarize work carried out.

The range of our extremely robust drill monitoring instrumentation corresponds to various needs for measuring, recording, and automation in foundation engineering. Real time graphic recordings and software reports provide a protocol on the work in progress. This instrumentation is suitable for work under extreme environmental conditions and can be operated easily by rig operators. Each foundation process, including kelly piles, has an associated software which analyses the measurement data and produces reports which summarize work carried out.

This is a ground strengthening technique, affected by a powerful torpedo shaped vibrating poker (vibroflot). The latter creates a void in which a compacted stone column is formed (vibro-displacement), or its energy compacts the in-situ soil (vibro-compaction). For quality control assurance, our instrumentation supplies the following compaction measurements: depth, gravel volume, electrical or hydraulic power of the vibrator and ground compaction.

Anchor loading determines the quality of traction sealing to the ground. Work carried out during a given time is analyzed. On site instrumentation ensures the monitoring, measuring and recording of traction displacement, interior surface displacement, and traction or pressure force. Our computer software enables creation of anchor-load testing procedures which are carried out on construction sites and automatic processing of the acquired data in order to analyze the measurements.

The range of our extremely robust drill monitoring instrumentation corresponds to various needs for measuring, recording, and automation in foundation engineering. Real time graphic recordings and software reports provide a protocol on the work in progress. This instrumentation is suitable for work under extreme environmental conditions and can be operated easily by rig operators. Each foundation process, including the creation of diaphragm walls, has an associated software which analyses the measurement data and produces reports which summarize work carried out.

The range of our extremely robust drill monitoring instrumentation corresponds to various needs for measuring, recording, and automation in foundation engineering. Real time graphic recordings and software reports provide a protocol on the work in progress. This instrumentation is suitable for work under extreme environmental conditions and can be operated easily by rig operators. Each foundation process, including soil mixing, has an associated software which analyses the measurement data and produces reports which summarize work carried out.

The range of our extremely robust drill monitoring instrumentation corresponds to various needs for measuring, recording, and automation in foundation engineering. Real time graphic recordings and software reports provide a protocol on the work in progress. This instrumentation is suitable for work under extreme environmental conditions and can be operated easily by rig operators. Each foundation process, including GPS positioning, has associated software which analyses the measurement data and produces reports which summarize work carried out. Our GPS positioning equipment, accurate to the nearest centimeter, helps to position your foundation works equipment in the correct location.