Full rotary casing drilling machine of shield heavy industry opens the deepest construction record in China
Recently, Xuzhou shield Heavy Machinery Manufacturing Co., Ltd. produced the full rotary casing drilling rig, which created the deepest construction record in China, and became a big event in the history of construction machinery in china. At present, the project is progressing smoothly.
At present, the full bore rotary drilling machine produced by the company successfully completed the whole pipe filling pile with diameter of 1100mm, depth of 84m and diameter of 2000mm depth 82.5m in the construction of public buildings of chopsticks base E and F in Macao, and created the deepest construction record of the whole casing drilling rig in china.
Macao chopsticks base E and F area public housing construction project is the Macao government project, a total of 66 basic piles, of which 24 are 1100mm diameter piles, the remaining 42 are 2000mm diameter piles, using full casing wall protection, its design depth is 80m. According to the construction specifications and design requirements of Macao, the depth of rock entering is 2.5 times of the pile diameter when the bedrock surface (98% granite) reaches the standard, and the rock is not allowed to strike rock at the bedrock surface, which requires the formation of the smooth rock surface.
The rotary drill casing used at the construction site for the Xuzhou shield heavy production of DTR2605H and DTR2005H each one, two machines were created the most deep casing drilling rig construction record, verify the shield heavy full rotary rig strong ability to model casing drilling rig, and very good publicity function of application the rotary drilling machine and method of casing.
Shield is a heavy industry R & D China's first full casing rotary drilling rig manufacturer, is also China's largest full casing rotary drilling rig production base, diameter up to 3.2m maximum full casing rotary drilling rig construction production, above the maximum drilling depth of up to 80m, the vertical accuracy can reach 1/500, in the sand, cave, rock, gravel, reinforced concrete and other complex geological environment and can guarantee the smooth completion of construction, rapid construction. If the underground reinforced concrete affects the normal construction, the machine can remove the obstacles smoothly.
Full casing rotary drilling rig in full hydraulic power and transmission, electrical and hydraulic control in one, is a new drilling technology, high efficiency, environmental protection, in recent years in the city subway, deep foundation pit, waste piles and piles of underground obstacles, high-speed rail, road and bridge construction, pile construction, reservoir dam reinforcement project widely used. This new technological method realizes the successful launch of the construction personnel in the egg, Boulder formation, with cave formation, thick quicksand stratum, strong neck formation, all kinds of pile foundation, reinforced concrete structure disorder is not clear situation can realize pile, replacement pile, underground continuous wall construction and pipe jacking, obstacles through all kinds of pile foundation may not shield tunnel.
Xuzhou shield heavy industry company now has a high level of technology research and development team, through the well-known universities with long-term, in-depth technical cooperation, research and development, the manufacture of a fully independent intellectual property rights of all casing rotary drilling equipment, and achieved a number of national invention patents. The ability to get this record, the strength is evident. In the process of development, in order to build global users to provide a special environment and no mud pollution world-class pile solutions for the vision, adhere to the common development with users, promote China's construction machinery industry into the world class!
