What is a human flesh pile driver?

The pile driver consists of a pile hammer, a pile frame and auxiliary equipment. The pile hammer is installed at the front end of the pile frame between two parallel vertical guide rods (commonly known as gantry) and lifted by a hook.

The pile frame is a steel tower, and the rear part of the pile frame is provided with a hoist for lifting piles and pile hammers. There is a guide frame composed of two guide rods in front of the pile frame to control the piling direction and make the pile accurately penetrate into the stratum according to the designed orientation.

The basic technical parameters of pile driver are the weight of impact parts, impact kinetic energy and impact frequency. Pile hammer can be divided into drop hammer, steam hammer, diesel hammer and hydraulic hammer according to the power source of movement.

Pile drivers can often be seen on the construction site. For such large-scale equipment, there are many requirements when operating, not only to ensure the normal use of the equipment, but also to ensure the safety of operators. Yi Bei Machinery has specially arranged some important safety matters in the safe operation of pile drivers.

1. The power device, hoist, hydraulic device and electrical device of the pile driver shall be operated according to its operating instructions.

2. Operators should be specially trained and familiar with the performance, structure, use and maintenance methods of the operated pile driver, and can only operate after holding the operation certificate.

3. Before operation, you should fully understand the surrounding environment, buildings and geological conditions of the operation site.

4. The assembly, trial operation and disassembly of the pile driver shall conform to the procedures specified in the manual.

5. In case of severe weather such as gale or rainstorm, heavy snow and fog, the operation should be stopped. When the wind force is greater than 7, the pile driver should be parked in the windward, put down the diesel hammer, and add a windproof rope. If necessary, put down the pile frame. The pile driver should have lightning protection measures, and personnel should stay away from the pile driver to prevent lightning strike.

6. The steel wire rope shall be fixed with wedge-shaped joints, pressure plates, rope clamps, crimping joints or braided inserts corresponding to the diameter of the steel wire rope. When the wire rope is fixed by splicing, the length of the spliced part should not be less than 20 times the diameter of the wire rope and should not be less than 300mm, and the spliced part should be bound with fine steel wire.

When rope clamps are used for fixing, the number of rope clamps should not be less than 3, and the number of rope clamps is related to the diameter of steel wire rope; The spacing between rope clamps shall not be less than 6 times the diameter of wire rope, and the distance between the rope head and the last rope clamp shall not be less than 140mm, and shall be tied with thin steel wire.

The clamp seat of the rope clamp should be placed on the stressed side of the wire rope when working, and the U-shaped bolt should be buckled at the end of the wire rope. Rope clamps should not be staggered back and forth, and the wire rope should be tightened again after being stressed.

7. When installing the diesel hammer, the diesel hammer should be sent to the column of the pile frame and guided within 2m ahead.

8. When working high above the ground, the operator should wear a seat belt.

9. When the pile driver is running, no one is allowed to enter under the rising diesel hammer.