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The objective of HEIC is to improve the strength and deformation characteristics of in-situ soils to such a degree, that structures can be supported safely and economically on or below the HEIC improved ground surface. Deep compaction of in-situ soils can be used for the solution of a variety of foundation problems, such as:


• Improvement of soil strength in order to increase the bearing capacity of foundations or the stability of slopes and excavations with respect to static and/or dynamic loading,


• Increase of soil stiffness for reduction of total and differential deformations and settlements which may be caused by static, cyclic or dynamic loading,


• General improvement of geotechnical properties in heterogeneous soil deposits.


LANDPAC has been able to combine hardware (HEIC) and software (CIR) together for maximum effectiveness for any particular project. It is not simply about offering standalone HEIC ground improvement technology to clients, it's about understanding how our clients sector, clients organisation and clients day-to-day project works and then offering our clients an efficient reportable ground improvement solution that fits best, with their engineers, and becomes integral to our clients method of working and reducing their risk, hence the introduction by LANDPAC of the Continuous Impact Response (CIR) advanced visualisation monitoring/reporting technique, since 2004.


Continuous Impact Response (CIR) – Intelligent Stiffness Profile Monitoring LANDPAC CIR is a specialised technique for recording real time soil response during the HEIC process. CIR is measured using a sensor attached to the HEIC twin impact drums tube axle. Each impact, during twin drum assembly rotation, is recorded relative to its position on site as determined by an integrated GPS system. The HEIC CIR can be very effectively used to identify relative variations in soil stiffness across the whole site surface/layer. Actual soil test results obtained at specific locations can be interpolated over the entire site. The CIR can effectively monitor 100% of the site during the HEIC process.


The initial goal was to create a live feed network for client engineers. LANDPAC CIR is carried out on all HEIC projects around the world. One of the major advantages CIR offers over other surface ground improvement techniques is its ability to integrate and display very large volumes of data from multiple projects remotely, allowing a greater understanding of diverse ground improvement environments.


CIR monitoring and visualisation application has broadened to encompass both project modelling and process modelling. Being able to monitor, in real-time, the HEIC ground improvement occurring within a defined area of a site/project, means that the CIR system has become vital in

many diverse surface ground improvement environments. CIR has become a fundamental tool for our clients and their engineers within project records, specification qualification, quality assurance and quantity surveying.


CIR has been designed in such a way that live feed data of CIR visualisations can be easily shared with clients, clients engineers etc. immediately.