When dealing with the hammer sticking of the punch pile driver's hammer head, we should first find out what causes it, and carry out different treatment for different reasons. The following treatment methods are sorted out for your reference.

1. Regularly check the mechanical equipment, and regularly check whether the operation of piling machine, mud pump and other equipment is normal. Generally, the rigging and pile hammer shall be checked every four hours, and the hidden dangers shall be handled in time. During each hammer change, check whether the hammer diameter meets the requirements. In order to facilitate fishing, set a fishing ring, fishing rod and fishing sleeve on the hammer head of the pile driver. After replacing a new pile hammer, the hole shall be pulled up and down several times, and the stroke shall not be too large. Punching can be continued only when it is determined that the hammer will not jam. In case of mechanical equipment failure, try to lift the pile hammer out of the hole in time.

2. When the hammer is stuck due to the plum blossom hole, if the hammer head has room for downward movement, the drill bit can move downward and rotate in the direction of large hole diameter to lift the drill bit, or slightly loosen the steel wire rope to rotate the hammer head by an angle, or it is possible to lift the hammer head.

3. Put the larger steel wire rope fishing hook into the hole, hook the hammer head of the pile driver and lift it with the big rope at the same time or alternately, and swing up, down, left and right for many times. Sometimes the hammer head can be lifted.

4. When the drill bit is stuck with iron parts and other items, do not force it to pull, so as to prevent wire rope fracture and hole collapse. Use the method of bumping from top to bottom to gently tap the items at the punch point to make the drill move up and down. Sometimes it can break away from the punch point or make the falling objects fall down.

5. Use other tools, such as small hammer head, to impact in the hole, squeeze the stone of the hammer into the hole wall, or touch the hammer to move away from the clamping point, and then lift the hammer head of the pile driver, or use compressed air pipe or high-pressure water pipe to lower into the hole, aim at one side of the hammer or the hammer suction point, and then forcibly lift it after loosening the clamping point.

6. When the hammer embedding time is short or shallow, sleepers can be erected around the pile hole to buckle the two large rails together and the large rope on the rail. At both ends of the rail, use two jacks not less than 50t to slowly jack up the rail to make the rail drive the large rope to rise slowly, but pay attention to the slow lifting process. When the rail has a certain deflection, stop for a while, Pull up slowly with the rebound force of the rail to avoid breaking the rope with too much force. For the serious hole collapse buried hammer, the hollow hammer with a diameter larger than the hammer head can be used to remove the soil and stone on the original hammer. After contacting the original hammer, the hollow hammer with a slightly larger diameter than the original hammer can be used to separate the original hammer from the surrounding hole wall, and then the hollow hammer can be put forward. Then hook the fishing hook into the hole for fishing. Then use the winch to lift and pull together with other hoisting machinery and equipment.

7. When the above methods are ineffective in lifting the hammer, the underwater blasting method can be used. Put the waterproof explosive in the hole, put it at the bottom of the hammer along the chute of the hammer, then detonate and send the hammer, and then lift it with a drilling rig or other lifting machines and tools at the same time. Generally, it can be raised. However, pay attention to the amount of explosive during blasting to avoid excessive damage to the solid drill bit or hole collapse.