A vibratory rammer includes an upper mass, a lower mass coupled to the upper mass, a longitudinal axis extending centrally through the upper mass and the lower mass, and a handle coupled to the upper mass with a handle vibration dampening mechanism that is configured to attenuate vibration transmitted to the handle. The handle is configured to support a user interface on a first side of the longitudinal axis. A motor is coupled to the upper mass and a drive mechanism is operably coupled to the motor and the lower mass. The drive mechanism configured to move the lower mass in a reciprocating manner. A battery provides power to the motor and is coupled to the upper mass with a battery vibration dampening mechanism that is configured to attenuate vibration transmitted to the battery. The battery positioned on a second side of the longitudinal axis opposite the first side.

A vibratory rammer includes an upper mass, a lower mass coupled to the upper mass, a longitudinal axis extending centrally through the upper mass and the lower mass, and a handle coupled to the upper mass with a handle vibration dampening mechanism that is configured to attenuate vibration transmitted to the handle. The handle is configured to support a user interface on a first side of the longitudinal axis. A motor is coupled to the upper mass and a drive mechanism is operably coupled to the motor and the lower mass. The drive mechanism configured to move the lower mass in a reciprocating manner. A battery provides power to the motor and is coupled to the upper mass with a battery vibration dampening mechanism that is configured to attenuate vibration transmitted to the battery. The battery positioned on a second side of the longitudinal axis opposite the first side.

The invention relates to an impact compactor (10) and to a method and system of obtaining an indication of the soil strength of soil (100) by using an impact compactor (10). The impact compactor (10) includes a chassis 5 structure (12), at least one wheel (14) supportively mounted on the chassis structure (12), and at least one impact drum (16) which is displaceable relative to the chassis structure (12). The method includes travelling with the impact compactor (10) over a soil surface (100) while the drum (16) is in a raised position in which it is spaced from the soil surface (100) and 10 measuring, by using a measuring arrangement (20) which is connected to or forms part of the impact compactor (10), a rut depth (54) of a rut in the soil surface (100) which is formed by the wheel (14) as the impact compactor (10) travels over the soil surface (100).

The invention relates to an impact compactor (10) and to a method and system of obtaining an indication of the soil strength of soil (100) by using an impact compactor (10). The impact compactor (10) includes a chassis 5 structure (12), at least one wheel (14) supportively mounted on the chassis structure (12), and at least one impact drum (16) which is displaceable relative to the chassis structure (12). The method includes travelling with the impact compactor (10) over a soil surface (100) while the drum (16) is in a raised position in which it is spaced from the soil surface (100) and 10 measuring, by using a measuring arrangement (20) which is connected to or forms part of the impact compactor (10), a rut depth (54) of a rut in the soil surface (100) which is formed by the wheel (14) as the impact compactor (10) travels over the soil surface (100).

An autonomous earth moving system can determine a desired state for a portion of the EMV including at least one control surface. Then the EMV selects a set of control signals for moving the portion of the EMV from the current state to the desired state using a machine learning model trained to generate control signals for moving the portion of the EMV to the desired state based on the current state. After the EMV executes the selected set of control signals, the system measures an updated state of the portion of the EMV. In some cases, this updated state of the EMV is used to iteratively update the machine learning model using an online learning process.

Disclosed herein is a method for stabilising a volume of soil (e.g. a volume of soil that defines a road base or a road sub-base). The method comprises applying a coating agent comprising one or more salts of fatty acids derived from coconut oil to the soil, whereby soil particles in the soil are coated with the coating agent, and then applying to the soil a setting agent comprising a metallic salt that is capable of reacting with the one or more salts of fatty acids derived from coconut oil, whereupon a set product is formed. The soil is subsequently compacted, whereby the coated soil particles are consolidated.

Disclosed herein is a method for stabilising a volume of soil (e.g. a volume of soil that defines a road base or a road sub-base). The method comprises applying a coating agent comprising one or more salts of fatty acids derived from coconut oil to the soil, whereby soil particles in the soil are coated with the coating agent, and then applying to the soil a setting agent comprising a metallic salt that is capable of reacting with the one or more salts of fatty acids derived from coconut oil, whereupon a set product is formed. The soil is subsequently compacted, whereby the coated soil particles are consolidated.

A method for controlling a compactor machine can include inputting a compaction specification into a controller for compacting a work area; inputting a compaction target value into the controller; while compacting, evaluating an actual compaction value; and if the actual compaction value reaches the compaction target value, the controller being configured to turn off a vibratory system of the compactor machine while the compactor machine finishes any further passes over the work area as specified by the compaction specification.

A method for controlling a compactor machine can include inputting a compaction specification into a controller for compacting a work area; inputting a compaction target value into the controller; while compacting, evaluating an actual compaction value; and if the actual compaction value reaches the compaction target value, the controller being configured to turn off a vibratory system of the compactor machine while the compactor machine finishes any further passes over the work area as specified by the compaction specification.

The invention relates to a method for operating a ground milling machine, in particular a road milling machine, a stabilizer, a recycler, a surface miner or the like, having an interchangeable milling drum, wherein the milling drum is equipped with a plurality of milling tools, in particular round shank picks, wherein the milling drum has a current state, wherein a control unit is provided for controlling at least one function of the ground milling machine, and wherein the milling drum has a characteristic feature or a characteristic feature is assigned to the milling drum. According to the invention, provision is made that at least one data set containing information on the current state of the milling drum is stored in a storage unit, in that the characteristic feature identifying the milling drum is assigned to the data set in the storage unit, and this data set is transmitted to a processing device.