Topographic Survey Drilling Process
The terrain survey drilling process begins with determining drilling locations based on preliminary survey results and the project's technical requirements. These locations are often selected at points representative of different geological conditions in the project area, to ensure that the collected soil and rock samples accurately reflect the geological characteristics of the entire area. area.

After selecting the drilling location, the survey team will use specialized drilling equipment to drill holes. Drilling equipment can be hand drills or motor drills, depending on the depth to be drilled and the characteristics of the ground. The drilling process involves creating boreholes of suitable diameter and depth, thereby collecting soil and rock samples from different soil layers.

Sampling and Testing
When the drilling process is completed, soil and rock samples will be taken from the drill hole and stored in sample boxes. These samples need to be carefully labeled to ensure the accuracy and reliability of future testing. Sampling from different depths helps to collect detailed information about the structure and properties of subsurface soil and rock layers.

After collecting samples, the soil and rock samples will be transported to the laboratory to conduct technical tests. These tests include physical and mechanical tests such as compression tests, shear tests, and permeation tests, as well as chemical tests such as chemical composition analysis and pH determination. The results of these tests provide important information to evaluate the durability, bearing capacity, water permeability, and other properties of soil and rock, thereby providing effective design and construction measures. .

Applications and Benefits
Topographic survey drilling not only provides important data for the design and construction of projects but also helps assess potential geological risks. For example, if drilling and testing reveals the presence of weak soil layers or underground sinkholes, the survey team may recommend foundation strengthening measures such as using piles or soil-cement columns to increase bearing strength of the ground. If the results show that the soil and rock have high water permeability, it is necessary to design an effective drainage system to control groundwater and avoid affecting construction works.

In addition, terrain survey drilling also helps minimize risks and costs arising from design changes or troubleshooting during construction. Having complete information about geological conditions helps project managers make correct and effective decisions, thereby creating reasonable construction plans and optimizing resources and time.

Conclude
In short, topographic survey drilling is a specialized and important activity in the geological survey process, helping to collect detailed information about the structure and properties of subsurface soil and rock layers. Carrying out complete and accurate survey drilling not only helps evaluate geological factors affecting the project but also provides appropriate technical solutions, ensuring safety and stability for construction projects. . This activity plays an important role in project planning and management, helping to optimize resources and minimize risks and costs incurred.