company news about TYHEN KR125A Rotary drilling rig works for Wuhan infrastructure construction

Recently, TYHEN Foundation KR125A small rotary drilling rig was constructed in the Wuhan scientific research base project of Chinese electric power research Institute. The KR125A small rotary drilling rig at the construction site completed the construction task efficiently. Unanimous praise from the contractor and the owner.

The Wuhan Scientific Research Base Project of Chinese Electric Power Research Institute is an important investment project of Chinese Electric Power Research Institute Co., Ltd. to implement the State Grid Corporation's national strategy of building a new power system, and a major cooperation project with local governments for scientific and technological development. The Wuhan scientific research base is located in the East Lake National Independent Innovation Demonstration Zone in the southeast of Wuhan, north of Gaoxin 2nd Road, east of Tongli Road, south of Keji 3rd Road, and west of Changshui Road. The project covers an area of about 98,000 square meters, with a construction area of 60,200 square meters for the first phase and the second bid section. The construction content is mainly a national key scientific research laboratory, including a cable laboratory, a transformer laboratory, an electromechanical joint laboratory, and a national high-voltage measurement laboratory Four national-level laboratories, including the national benchmark laboratory authorized by the State Administration for Market Regulation and other legal metrology zero-level laboratorie.

The construction site has complex geology, 1-10 meters of backfill and silt stratum, serious shrinkage cavities. 10-12 meters of silty sand stratum, serious water permeable and easy to collapse holes. 12-16 meters of red sandstone interlayer. 16-20.5 meters of moderately weathered rock. The diameter of the drilled piles on site is 600-800mm, the hole depth is 18m~20.5m, and one hole is formed in an average of 45 minutes to 1 hour. The 8-meter casing under the pulling machine is used to protect the wall. TYHEN Foundation is equipped with skilled operators for more than 3 years. , It is necessary to strictly control the drilling speed and the lifting speed of the Kelly bar, effectively prevent the collapse of the hole, give full play to the advantages of the small rotary drilling rig and the large power, and successfully complete the construction task.

TYSIM KR125A weighs about 35 tons, with a construction range of 400~1500mm diameter and a construction height of 15 meters, it can reach a depth of 43 meters. It can be transported with its mast without the need of dismantling and assembling. KR125A is also designed with an automatic mast folding function, which can effectively reduce the transportation height, and thereby reducing the disassembly and assembly time during transportation. Furthermore, the imported gearbox and engine enables KR125A to have exceptional climbing performance. At the same time, the power head torque of 125 KN.m can also fully cope with most geological conditions such as pebbles and gravels. Selected original American Cummins engine with strong power, combined with the electronic control system and hydraulic system of TYSIM core technology, can give full play to its working ability, the whole series of products have passed the national standard GB certification and European CE certification, better dynamic and static stability design , to ensure construction safety;