L68B3 Mast Section Tower Crane Foundation construction-tower Crane Foundation construction management, what are the non-standard problems
1. Some of the fixed tower body of the embedded bolt location and elevation installation is not accurate, some embedded depth is not enough, some exposed length is short, fastening high-strength bolts can not screw in place, some even use non-manufacturer provided bolts, bolt diameter is insufficient. 2. The hoisting unit lacks the complete crane ring rail beam foundation design and the Computation, after the foundation sinks, adopts the wrong processing method. 3. Some construction enterprises have not taken reliable measures to treat the soft soil under the Tower Crane Foundation. Some of the ultra-deep parts of the processing in place, so that the local foundation hanging; 5. Some lack the necessary acceptance of the concealed reinforced concrete works at the base of the tower crane, and the binding of steel bars and the strength of concrete do not meet the design requirements and the bearing capacity of the tower crane. 6. Some foundations are uneven and no drainage measures are set up, which causes the foundation settlement to tilt during the use of tower cranes
L68B3 mast section is the best in this field
