Abstract: The invention relates to a monitoring device for monitoring a removal quantity of loosened soil and/or an overcut for creating an annular space when creating a borehole in the soil (10) by means of an advance of a drilling device (20), wherein: the monitoring device can be arranged below an opening (25) in a peripheral wall (3) of a drilling device (20) or below an opening in an outer wall of a pipe portion of a drilling device or of a casing pipe; the drilling device (20) is a drilling device for creating a borehole in the soil from a start point to a target point; the monitoring device (30) comprises a receptacle (4) which has an inner space (33) and an entry opening for arrangement in the region of the opening (25); the monitoring device (30) comprises a control element (5) which is arranged in the inner space (33) so as to be pivotable about a pivot axis (6); an actuator is provided in connection with the control element (5); the control element (5) is movable in a pivot direction (A) via the actuator (11

Abstract: A method for monitoring overburden during excavation in soil, in which the soil pressure exerted by the soil (10) on an excavation device driven through the soil (10) is monitored by means of a pressure control element (5) extended from the circumference (3) of the driving device. An excavation device for carrying out the method has a pressure control element (5) which is arranged on the circumference (3) of the excavation device and can be extended beyond the circumference (3) of the excavation device.

Abstract: A method for monitoring overburden during excavation in soil, in which the soil pressure exerted by the soil (10) on an excavation device driven through the soil (10) is monitored by means of a pressure control element (5) extended from the circumference (3) of the driving device. An excavation device for carrying out the method has a pressure control element (5) which is arranged on the circumference (3) of the excavation device and can be extended beyond the circumference (3) of the excavation device.

Abstract: The trench assembly comprises shoring plates supporting the side walls of the trench, vertical posts holding the shoring plates and at least one spindle or shore for the support of two oppositely located posts, the plates, include respective front sides pressed against the associated posts and curved in the vertical plane so that they can roll on the posts when the assembly is lowered.