Our company is a professional company engaged in the construction of foundation projects. In addition to the construction of various foundation piles (various types of rock-socketed piles, bored piles, anchored rock piles, mixing piles, etc.), the company also undertakes various types of Construction of retaining piles for deep foundation pits (construction of various deep foundation pit cofferdams). In recent years, in order to meet the needs of the pile foundation construction market, in addition to strengthening the construction technology and technological innovation of large diameter piles (including inclined piles, anchored rock piles, and foundation pit retaining piles, etc.), the company also spent huge sums of money to update and purchase new Construction equipment: such as rotary drilling rigs, full hydraulic rotary drilling rigs, full-pipe full rotary drilling rigs. In the construction of various deep foundation pit retaining piles, it has achieved good social effects and praised by the owners. The deep foundation pit cofferdam (retaining pile) construction projects shown below are typical of the engineering projects undertaken by our company in recent years Of several cases.

     1 : Our company successfully completed the "Deep Foundation Pit Treatment Construction Project" in the expansion project of the Qinshan-Fangjiashan Nuclear Power Plant using the RT-200A full-pipe full-rotation drilling rig.

     2 : Two rotary drilling rigs purchased by our company are used in the construction of the AB-type retaining piles of the main pier deep foundation pits of the Qianzhang-Chang Apeng River Railway Bridge 14# and 15# in Chongqing Qianjiang

     3 : Yangmeizhou Bridge 20, 21# main bridge pier lock steel pipe pile cofferdam project undertaken by our company;

     4 : Chongqing Qianjiang <Fuxiu Second Line Apeng River Left Line Railway Bridge 2# Pier Cofferdam Piles" project undertaken by our company.

     5 : Qianjiang Apeng River Railway Bridge 14#, 15# main bridge pier deep foundation pit AB type retaining pile "Concrete Construction Mould"

     6 : The scene after the excavation of the deep foundation pits of the main bridge piers of Qianjiang Apeng River Railway Bridge 14# and 15#. Part of the two foundation pits are in the Apeng River backfill area, and there is no seepage or leakage after excavation. Water leakage, landslides and cracking quality problems. (Note: The top of the rock-socketed pile at the bottom of the excavated foundation pit shows that the "pile position" is quite standard).