A soil densification system and method is disclosed. The presently disclosed soil densification system includes an air delivery probe or pipe that can be driven or otherwise installed into a soil mass. An inlet of the air delivery probe is supplied by an air compressor and an air storage tank, which are used for the rapid delivery of air impulses or bursts into the air delivery probe, whereas the air impulses or bursts are expelled out of an outlet of the air delivery probe and into the soil mass. The method of using the presently disclosed soil densification system includes the steps of inserting the end of the air delivery probe into the soil mass to any desired depth and then releasing an impulse or burst of air into the soil mass, thereby forming a densified region in the soil mass via the forces of the air impulse.

A soil densification system and method is disclosed. The presently disclosed soil densification system includes an air delivery probe or pipe that can be driven or otherwise installed into a soil mass. An inlet of the air delivery probe is supplied by an air compressor and an air storage tank, which are used for the rapid delivery of air impulses or bursts into the air delivery probe, whereas the air impulses or bursts are expelled out of an outlet of the air delivery probe and into the soil mass. The method of using the presently disclosed soil densification system includes the steps of inserting the end of the air delivery probe into the soil mass to any desired depth and then releasing an impulse or burst of air into the soil mass, thereby forming a densified region in the soil mass via the forces of the air impulse.

A vibration assembly for a surface compactor machine includes a support subassembly connected to the compacting surface of the surface compactor machine. A primary eccentric shaft is disposed around a secondary eccentric shaft, with the primary and secondary eccentric shafts both rotatable about a common axis of rotation. One or more of primary bearing subassemblies is disposed between the primary eccentric shaft and the support subassembly for supporting the primary eccentric shaft during rotation of the primary eccentric shaft. One or more secondary bearing subassemblies is disposed between the secondary eccentric shaft and the primary eccentric shaft for supporting the secondary eccentric shaft during rotation of the primary eccentric shaft.

A control apparatus for a soil compacting apparatus which can be driven by a drive motor is provided. The control apparatus includes a running-direction operating element, which is pivotable about a first axis, for predetermining a running direction of the soil compacting apparatus by an operator, and further includes a rotational-speed operating element, which is pivotable about a second axis, for setting a rotational speed of the drive motor. The first axis and the second axis are congruent and form a common pivot axis.

The disclosure relates to a method for compacting a soil, wherein:

a) a ramming cycle is carried out several times on an impact area of the soil during which: a mass (16) is dropped on the impact area from a predetermined height (A); and after the impact of the mass (16) on the impact area, a point cloud is acquired using a laser scanner in order to obtain a radar image of at least the footprint (E) of the mass in the soil;

b) at least one characteristic data of the soil compaction is determined from at least one of the radar images obtained at the end of the ramming cycles.

A compactor can optionally include a steering system configured to direct the movement of the compactor, a temperature sensor configured to generate data indicative of a temperature of a material that forms a surface of the compacting area, and a controller coupled to the machine and communicatively coupled to the temperature sensor. The controller can be configured to: receive data indicative of the temperature of the material from the temperature sensor, determine if the temperature exceeds a first threshold temperature, and if the temperature of the compactor exceeds the first threshold temperature, control the steering system to limit a turning angle to a predetermined value such that a turning radius of the compactor is increased.

A compactor can optionally include a steering system configured to direct the movement of the compactor, a temperature sensor configured to generate data indicative of a temperature of a material that forms a surface of the compacting area, and a controller coupled to the machine and communicatively coupled to the temperature sensor. The controller can be configured to: receive data indicative of the temperature of the material from the temperature sensor, determine if the temperature exceeds a first threshold temperature, and if the temperature of the compactor exceeds the first threshold temperature, control the steering system to limit a turning angle to a predetermined value such that a turning radius of the compactor is increased.

The object of the present invention relates to a method for producing drilled piles, wherein a drilling tool is sunk into the subsoil by applying a drilling torque and a vertical force, the drilling tool is then again retracted and an additional material is introduced into the resulting bore. According to the invention, the drilling tool is set in vibration by one or more actuators while it is sunk into the subsoil and/or during the retraction of the drilling tool, wherein a resulting oscillation amplitude has at least one horizontal portion. The invention also relates to a corresponding drilling tool for producing boreholes or drilled piles in a subsoil. The present invention further relates to a depth vibrator for the displacement and consolidation of subsoil material as well as a method for the displacement and consolidation of subsoil material.

A grass sports ground is produced by mixing man-made vitreous fibres into soil having relatively high loam levels at a rate in the range 0.5 to 50 parts by weight per 100 parts soil (dry weight), preferably in the presence of moisture to separate the fibres and distribute them among soil particles, and then growing grass. The soil/fibre mixture has desirable moisture management properties as well as good mechanical characteristics providing extended use characteristics even in cold, wet or hot and dry conditions.

A grass sports ground is produced by mixing man-made vitreous fibres into soil having relatively high loam levels at a rate in the range 0.5 to 50 parts by weight per 100 parts soil (dry weight), preferably in the presence of moisture to separate the fibres and distribute them among soil particles, and then growing grass. The soil/fibre mixture has desirable moisture management properties as well as good mechanical characteristics providing extended use characteristics even in cold, wet or hot and dry conditions.