The rotation of the rotary device of the DTR all-casing rotary drill makes the friction between the steel pipe sleeve and the soil layerThe force is greatly reduced, the side rotating side press in, at the same time using the impact grab, impact hammer....
The essence of the hole formation of the occlusal pile is the follow - up method of the casing. That is, the whole casing drill is used to rotate the casingnter the soil, protect the perforated section, take the soil in the pile tip with grab...
By adoptingcasing rotator to lay down the casing, rotator drill soil borrowing construction method can not only fully take rotator drill large torque cutting and casing laying advantages of casing rota tor, but also play the role of rotator...
During urban construction and bridge renovation, reinforced concrete pile, stone, local rocks and other obstacles shall be removed directly for making cast-in-place foundation pile or diaphragm wall.
Steel upright post vertical insertion construction technology is a kind of construction methodconnecting pile foundation with steel upright post in top-down construction method (known as one column for one pile).
Suitable for: cast-in-place pile occlusal pile, steel column insertion, pile removal, etc.
Low clearance casing rotator
Suitable for: tunnels, bridgesculverts and other narrow working space.
DGB series full hydraulic extubation machine
Pipe pulling machine: suitable for full rotation, pipe rubbing machine, rotary drilling, etc., using the following pipe drilling...
DAG Series Steel column implantation equipment
Steel column: suitable for cover excavation reverse work, construction method of steel column implantation technology.
Xuzhou Dunan Heavy Industry Machinery Manufacture Co.,Ltd & Xuzhou Dunan Construction Machinery Manufacture Co.,Ltd is a high-tech enterprise specialized in R&D, manufacturing, sales and service or special engineering machinery, as well as helping clients carry out construction management. The main products are included as DTR series casing rotator and intelligent compensation system for foundation pit steel support axial force, etc.
The company’s business concept is “Customer-centric, technology-leading”. With a strong capacity in technical research and development, and manufacture, R&D and manufacturing have completely independent intellectual property rights and achieve international leadership’s full-scale full –sleeve full-rotation drilling rig, which have obtained more than 70 national patents, including 5 invention patents. Meanwhile, as the main drafting nuit, Dunan Construction Industry has compiled the domestic full casing drilling rig industry standard.
Seven years of perseverance, ingenious service Xuzhou Dun'an 2019 service million miles on the road!
Nanjing Municipal Engineering Holds a Site Observation Meeting on Standardization Management
Xuzhou Dunan was elected as the member of the Deep Foundation and Underground Space Engineering Branch of China Architectural Association
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Industry standard setterMore than 60 national patents
Convenient service networkHigh quality after-sales service
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