Construction site of Tongtaiyang Bridge

Four medium and large tonnage rotary drilling rigs keep pace with each other

Responsible for the construction of nearly 3000 pile foundations

Line of Tongtaiyang Super Major Bridge Project Bid SectionTotal length 31.63km，It mainly includes one super-large bridge.，XCMG rotary drilling rigXR200E、XR240E、XR580HDAndXR460EBig、Medium tonnageJoint construction，Responsible for 2927 pile foundations。

The line crosses rivers in many places.、Highway，Allow the rotary drilling rig to operateThe construction of super-long bored pile foundation is full of challenges.，Steel casing construction is also quite difficult.。In order to ensure the safety of construction and the success of pile foundation at one time，The project party carries out a number of technical applications，Construction of orifice frame from pile foundation、Pile foundation construction mud return box、Rebar pre-bending tool pliers and slurry sampling device at any depth, etc.，It's safe、Environmental protection、Construction efficiency and other aspects to ensure pile foundation construction。

XR200E、XR240ETwo medium-tonnage products for deep ploughing of small piles，Safe, efficient and fast，Pile 3 per day-Four。XR460E、XR580HDTwo large-tonnage and super-large-tonnage products focus on large piles and deep piles，The pile depth is 120m，Two piles in three days on average，High pore-forming quality，The pile forming speed is fast。

High Efficiency of Pile Foundation Operation of Rotary Drilling Rig、High quality not only lays the foundation for the follow-up construction，It also marks that the main project of the North Riverside Railway has entered a new stage of construction.，Set off an upsurge of project construction。