Sub-surface reference point for monitoring vertical settlement and heave in soil, embankments, and soft ground.
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Sub-surface reference point for monitoring vertical settlement and heave in soil, embankments, and soft ground.
The Geolook G92-700GS Ground Settlement Marker is designed to measure the vertical displacement of soil or fill material. While building markers are used for rigid structures, ground markers are essential for tracking the stability of embankments, pre-load fills, and areas prone to subsidence. The system consists of a stainless steel or galvanized steel riser rod connected to a base plate or earth anchor buried at a specific depth. The top of the rod is protected by a heavy-duty cover or manhole, providing a stable reference point for surveyors to perform high-precision leveling throughout the construction and post-construction phases.
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A simple pin pushed into the surface of the ground can move due to rain, frost heave, or local foot traffic. This is not 'settlement.' The G92-700GS uses a base plate buried at a specific depth.
The riser rod is protected by an outer 'sleeve' pipe. This sleeve ensures that the soil near the surface can move up or down without 'dragging' the rod with it. This allows the surveyor to measure the movement of the stable soil layer where the base plate is located.
The top of the riser rod features a precision-machined hemispherical cap. This provides a single 'high point' for a leveling staff. By eliminating the ambiguity of where to place the staff, the G92-700GS ensures that different survey teams can achieve identical results, leading to a clean, noise-free settlement curve.
During the construction of a highway or dam embankment, markers are installed in stages. As the fill height increases, additional rod and sleeve sections are added. This allows for a continuous record of settlement from the very start of construction through to the final paving.
In active construction zones, markers are often run over by machinery. We provide the G92-700GS with a heavy-duty protective housing (manhole type) that is installed flush with the ground. This protects the precision rod from damage while allowing easy access for monitoring rounds.
A simple pin pushed into the surface of the ground can move due to rain, frost heave, or local foot traffic. This is not 'settlement.' The G92-700GS uses a base plate buried at a specific depth.
The riser rod is protected by an outer 'sleeve' pipe. This sleeve ensures that the soil near the surface can move up or down without 'dragging' the rod with it. This allows the surveyor to measure the movement of the stable soil layer where the base plate is located.
During the construction of a highway or dam embankment, markers are installed in stages. As the fill height increases, additional rod and sleeve sections are added. This allows for a continuous record of settlement from the very start of construction through to the final paving.
The top of the riser rod features a precision-machined hemispherical cap. This provides a single 'high point' for a leveling staff. By eliminating the ambiguity of where to place the staff, the G92-700GS ensures that different survey teams can achieve identical results, leading to a clean, noise-free settlement curve.
In active construction zones, markers are often run over by machinery. We provide the G92-700GS with a heavy-duty protective housing (manhole type) that is installed flush with the ground. This protects the precision rod from damage while allowing easy access for monitoring rounds.
We are currently updating the specific model configurations and technical datasheets for this product category.