(A) hammer sinking pile
The influence of 1 hammer on adjacent buildings and surrounding soil should be considered, and its settlement and displacement should be observed. If any abnormality is found, pile sinking should be stopped and studied.
2 The moving track of the pile driver should be laid smoothly, with correct gauge, and the track should be nailed firmly, and the rail end should have a wheel stop.
In tidal waters, fixed platforms or special piling boats should be used. The leveling platform shall be firmly connected with the pile driver base. When piling with a special piling boat, the connection between the pile frame and the hull and the anchorage of the hull should be firm. When other ships pass through the construction area and the ship's traveling wave affects the stability of the piling ship, the piling should be suspended.
The lifting points of four piles should meet the design requirements. When hanging the pile, the rope should be tied to the pile, and it is not allowed to collide with the pile hammer or pile machine.
5 When lifting the pile or pile hammer, the operator shall not stay under the hook or at the gantry of the pile frame.
6 When extending the reinforced concrete pipe pile, it is forbidden to put your hand into the pile head and flange bolt hole.
7 After the pipe pile is finished, the pile cap shall be covered immediately.
8 In the process of pile sinking, if foundation settlement, pile machine inclination and spreader damage are found, the construction must be stopped immediately and measures must be taken.
9 When the pile driver is working, it is forbidden to carry out any maintenance. It is forbidden to inspect and repair the pile hammer in the suspended state.
10 When the pile driver moves, the fuselage should be stable, and the pile hammer should be placed at the lowest position of the frame. When the roller is used to slide the pile driver, the staff shall not operate on the pile driver frame.
(2) Vibration pile sinking
1 The connecting bolts of vibration pile driver, pile cap and pile shall be completely tightened. Every vibration must be checked. If it is loose, it must be disposed of.
2 When using a crane to hang a vibrating hammer to sink a pile, there should be an anti-loosening protection device above the hook to control the lowering speed of the hook to be consistent with the pile sinking speed, so as to maintain the stability of the pile.
3 During pile sinking, if abnormal conditions such as pile inclination, rebound and abnormal sound of pile driver are found, the vibration should be stopped immediately, and the construction can be continued only after the reasons are found out.
4 In the process of vibration sinking, mechanical maintenance is strictly prohibited.
5 After the pile driver stops working, cut off the power supply immediately.
(3) Static pressure pile sinking
1 Before pile pressing, the pile pressing resistance should be correctly estimated and the appropriate pile pressing equipment should be selected according to the hydrogeological conditions in the pile pressing area.
The lifting point of pile 2 should meet the design requirements. When hanging the pile, the rope should be tied to the pile, and the pile machine should not be collided.
3 When lifting or piling, the operator shall not stay under the hook or pile frame.
4 In the process of pile pressing, the central axis of the pressure beam of the pile machine should be kept in the same straight line with the central axis of the pile. When the pile body is inclined, the pressurization should be stopped immediately, and the construction can be continued only after the reasons are found out and treated.
5. It is forbidden to overload the pile driver. When the pile driving resistance exceeds the bearing capacity of the pile driver, the construction should be stopped immediately to avoid the accident of pile breaking or frame falling.
The above is the introduction of pile sinking requirements provided by Zhong Da Consulting for construction personnel. For more knowledge of architectural terminology, please pay attention to the architectural knowledge column of Zhong Da Consulting.
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