One Machine for Multiple Uses | Uniroc‘s Face Drill Rig Assists in The Construction of Guangxi Pumped Storage Project

Guangxi Guilin Guanyang pumped storage power station for China's pumped storage planning key implementation projects, located in Guilin City, Guanyang County, Xinwei Town, a total investment of about 8 billion yuan, with a total installed capacity of 1.2 million kilowatts, plans to be completed and put into operation by the end of 2027. After the completion of the project, it will help the northern region of Guilin to build an integrated industrial base, and further enhance the regulatory capacity of the Guangxi power grid and the reliability of power supply in Guilin is of great significance.

(Image source: China Energy News)

The excavation hole and anchor bolt hole are both accurate

Guangxi Guilin Guanyang Pumped Storage Power Station traffic hole adopts full-section construction, equipped with a five new double-curved arm rock drilling cart, taking into account the double operation of digging holes and anchor holes. There are about 120 holes in the tunnel section, the average depth of the holes is 4.3 meters, the average length of excavation drilling per shift is 3 hours, the blasting footage per shift is 3.8m-4m, the average equipment is digging more than 200 meters per month, and the length of the anchor operation is about 9000 meters per month. Uniroc's face drill rig takes into account the double operation of digging hole and anchor hole, one machine is multi-purpose.

Uniroc's face drill rig WD200E is suitable for road and railroad tunnels, pumped storage power stations, hydroelectric power stations, underground caves and reservoirs of 30m2-154m2 for boring hole work and anchor hole work.

Main technical features:

Strong section adaptability: The first curved arm arm structure with a large operating range can adapt to multi section construction and achieve inverted arch excavation, overcoming the difficulty of traditional rock drilling rigs not being able to achieve inverted arch construction;

Strong adaptability of construction method: With a curved arm structure, the arm frame can operate below the horizontal line, which can meet the needs of two step and three step up, middle, and down step operations;

Strong personnel adaptability: remote control operation, simple and easy to learn, can observe drilling conditions up close, effectively control over excavation and under excavation; The whole vehicle has a short length, flexible maneuverability, and low driving difficulty;

Efficient and energy-saving: The drilling speed of a single hole is 5-6 times that of an artificial air drill, greatly improving drilling efficiency.

Easy to operate: Controlled by a computer, the arm can achieve self balancing operation and display the angle of the advancing beam, effectively controlling the excavation shape and over excavation.

In the future, Uniroc will continue to work hard and innovate continuously to provide customers with excellent products and services to make tunnel (cave) construction safer, more economical and more efficient!