Artificial Fill Land Subsidence Investigation
Subsidence is the downward movement of the ground’s surface due to natural or man-made causes. It is a problem in many regions, particularly in urban areas where construction has weakened the soil and made it more prone to subsidence. Artificial fill land subsidence investigations are used to assess the extent of subsidence and its potential to cause damage.
The primary objective of an artificial fill land subsidence investigation is to determine the earth materials present in the area of subsidence and the extent to which they have been affected by subsidence. Geotechnical experts collect and analyze soil samples from the area to assess the composition and stability of the earth materials. The sample results are then compared to the data collected during a subsidence investigation.
The subsidence investigation begins with a review of the history of the area. This includes the age of the artificial fill, the type of fill, date of installation, and details about the properties of the fill, such as its compaction level, permeability, and other characteristics.
The study then examines any existing indicators of possible subsidence, such as cracks in buildings or pavement, water seeping from underground, or noticeable changes in elevation of man-made features. After these potential indicators are identified and located, specialized instruments are used to take precise measurements, mapping out the depth and extent of the subsidence.
These soil samples and subsurface measurements, combined with surface and aerial photography, provide a comprehensive overview of the subsidence. The geotechnical experts analyze the data and formulate conclusions on the cause of the subsidence and its potential impact on the surrounding area. The investigation also includes making recommendations on interventions that may be needed to control or stop the subsidence and reduce the future risk of damage.
The results of the artificial fill land subsidence investigation are used to determine the extent of impacts, design interventions, and provide information on long-term stability of the subsidence area. If severe changes are indicated, appropriate preventive measures are implemented in order to protect infrastructure, property, and the environment from potential damage. The artificial fill land subsidence investigation is an essential step in understanding and minimizing the impacts of subsidence.
