Application Advantage Analysis of Rotary Drilling Rig in Rail Transit Engineering

In the construction of rail transit engineering, the foundation construction is very important, and the rotary drilling rig has become an indispensable tool with many characteristics. Let's take a look at what advantages it has in this type of project.

1. High construction efficiency: rotary drilling rig has strong power, equipped with automatic telescopic drill pipe, without frequent disassembly, greatly saving auxiliary time. For example, in the construction of Xixiang Park Station of Shenzhen Metro Line 15, the SR415R rotary drilling rig continued to output strong power, effectively improving the drilling efficiency and speeding up the project progress.

2. Excellent pile quality: The equipment has the function of automatic detection and adjustment of verticality, and can accurately control the parameters of drilling. For example, in the construction of Shenzhen Wuhe Station hub, the vertical degree of Shanhe intelligent rotary drilling rig into the hole has been highly recognized, ensuring the high-quality construction of steel column piles.

3. Small environmental impact: The use of dry or wet drilling operation, less mud use, reduce the pollution of the surrounding environment. Compared with the traditional rotary drilling rig mud circulation caused by a large number of sludge and mud treatment problems, the advantages are obvious.

4. Strong adaptability: It can be used with different drilling tools to cope with complex geological conditions such as sandy soil, sticky soil, silty soil, and even high-strength rocks. For example, in the construction of the wind shaft in the south extension of Xiamen Metro Line 3, the rock mass is broken and the formation is complex, and the rotary drilling rig has successfully overcome the difficulties with its own advantages.

5. High degree of automation: the operation mainly adopts hydraulic pilot control and load sensing, which can automatically adjust the torque and drilling proportion according to the formation condition, reduce the dependence on the operator's experience and reduce the labor intensity.

6. Accurate and convenient positioning: the equipment chassis is telescopic, with automatic leveling device, which can realize fast and accurate positioning, and can be micro-moved to ensure the smooth drilling rig, improve the efficiency and quality of hole formation.

Conclusion: Rotary drilling rig in rail transit engineering, with its high efficiency, high quality, environmental protection, strong adaptability and other advantages, effectively guarantee the smooth progress of the project, for the rapid development of rail transit construction, is an ideal choice for rail transit infrastructure construction.