Fall, collapse and prevention of object strikes

How to define the range of falling heights

Since not all of the crashes fall straight down in the vertical direction, there is a radius of the possible range of fall, and the relationship between R (radius) and H (height) specified by national standards :

When H=2-5 meters , R is 2 meters ;

When H=5-15 meters , R is 3 meters ;

When H=15-30 meters , R is 4 meters ;

When H> 30 meters , R is 5 meters ;

1 、 Causes of falling in height and preventive measures

the reason:

 Operators lack the safety technical knowledge of work at height;

 anti-falls of safety measures, equipment is not complete.

Precaution:

 Use safe treasures: helmets, seat belts, and safety nets.

 strict scaffolding 10 Off: material, size, decking, fence protection, connections, load-bearing, up and down, lightning, cantilever beam, check.

2. What is a collapse accident?

A collapse accident refers to an accident where an object exceeds its own ultimate strength under the action of external force and neutrality, and the structural stability is unbalanced and collapsed, resulting in accidents where the object is falling at a high place, the object is hit, the squeeze hurts, and the suffocation is caused.

Types of:

Earthwork collapsed, scaffold collapsed, formwork collapsed, demolition work collapsed, and buildings collapsed. The first four generally occur in construction operations, and the latter generally occurs during use.

3 , causes of collapse accidents, preventive measures

the reason:

Such accidents are closely related to the earth slope slope, construction methods, soil uniformity and external loads.

Preventive measures: After a personal accident caused by a landslide, two measures should be taken at the same time. On the one hand, the land will be immediately rammed, the wounded will be rescued and the wounded shall be closely monitored to prevent secondary injuries; on the other hand, temporary support measures shall be taken to the upper soil of the wounded. , to prevent the rescuer from the second landslip injury or to aggravate the consequences of the accident. Risk management and rescue should be conducted under the unified command of experienced people.

4 , the classification of objects hit and preventive measures

There are six main categories of common object hitting accidents:

a) In high altitude operations, tool parts, bricks, wooden blocks, etc. were dropped from high places and wounded;

b) think that littering and miscellaneous materials hurt people.

c) Lifting lifting objects will cause injuries.

d) The equipment is sick and hurts people.

e) Violation of the operation of the equipment.

f) The explosion of the pressure vessel explodes.

Precaution:

i. Must strictly implement relevant safety procedures to overcome paralysis.

Ii. It is forbidden to throw materials when working at height.

Iii. During the lifting work, it must be ensured that the materials are firmly bound and cannot be over-lifted.

Iv. Do not operate the faulty device.

v. Qualified personnel can operate or construct.

Vi. Manage pressure vessels well.

Vii. Do a good job of inspection and maintenance.

The information in this article comes from the Internet and was reorganized and edited by China Rescue Equipment Network.