Cause Analysis Of Crane Falling Objects in Railway Construction

Cause Analysis of Crane Falling Objects in Railway Construction

In order to better explain why there are falling objects, take the European-style double-girder bridge crane as an example, which will be referred to as European-style cranes below.

During the operation of the 25 ton European-style crane, if the hanging object falls, it will pose a great threat to safety. Therefore, it is necessary to understand the reasons for the heavy load drop of European cranes, strengthen prevention, and avoid safety accidents.

The following is a summary of the reasons for the weight drop of European cranes:

Unsafe conditions for a 25 ton European crane:
Risks caused by irregular design of 25 ton European-style cranes, such as failure of overload protection, lack of balance shaft strength, no anti-decoupling equipment, unreasonable selection of European-style lifting machinery and rigging, etc.;
Manufacturing defects and device defects, such as improper material selection, poor processing, etc., that is, scrapped parts that are not replaced in time, lack of necessary safety protection, improper maintenance and operation, will lead to out-of-control motion, damage to parts or structures, and safety performance The inspection is not standardized, resulting in design flaws in the hidden equipment that has been put into use.
The manufacture, installation, use and inspection of any link may lead to serious consequences of the hook falling. The physical safety (planning, manufacture and installation) of European cranes is the basic condition to ensure the safety of lifting operations.

Unsafe Human Behavior:
Human behavior is affected by many factors such as physiology, psychology, and comprehensive quality.
The main human causes of accidents are unskilled operation skills, lack of necessary safety education and training, unlicensed operation, illegal operation, bad operating habits, wrong operation judgment, unclear command signals, uncoordinated cooperation between the driving driver and the crane driver, and human error. "Three high" biorhythms, poor safety awareness, and low operational skills are the main human causes of accidents.

Environmental elements:
Harsh environments that exceed safety limits or hygiene standards, such as high dust, high temperature, high humidity, low temperature, high noise, strong wind, poor lighting, etc., will distract attention and directly affect the operator's ability to respond and the stability of skills. Increases chances of mishandling and illegal operations leading to accidents.
Harsh working environment will also make LDP electronic single-beam unsafe. One of the unsafe elements is the decline in the function of heavy mechanical systems, and even accelerate the failure of parts.

Security flaws:
Manage security awareness levels that include leadership;
Handling, inspection and timing safety performance inspection of European cranes;
Safety education and training for relevant personnel;
Special training for lifting operators, formulating European-style crane safety operating procedures, establishing a reward and punishment system for European-style lifting machinery operators and emergency plans for accidents;
The regular inspection and supervision management of lifting equipment and lifting tools is not effective.
Any negligence and improper safety management are one of the important reasons for the casualties of lifting personnel.

To avoid major accidents, we must start from small things and do a good job in the maintenance work and annual inspection requirements of the 25 ton European crane.