6、 Return to work safety inspection.
The construction site in the thunderstorm prone season must implement lightning protection measures, especially in the area without tall buildings around, reliable lightning protection devices must be installed.
If necessary, a third-party inspection and testing organization can be entrusted to test the construction hoisting machinery, which can be put into use only after passing the test.
The main points are as follows: first, defense of key parts.
In case of extreme weather such as thunderstorm, rainstorm and typhoon, relevant operations shall be stopped immediately and personnel shall be evacuated in time.
2、 Temporary building (facility) defense.
Focus on the inspection of drainage measures such as underground construction points, scaffold foundation, deep foundation pit, tower crane foundation and enclosure foundation, and provide sufficient flood control and drainage equipment and facilities.
According to relevant regulations, special inspection and maintenance shall be carried out for construction hoisting machinery.
For projects with threats such as flood, landslide, collapse and debris flow, as well as slope cutting construction, preventive measures shall be taken in advance, and personnel transfer and risk avoidance shall be done in time.
After the thunderstorm and strong wind, the safety conditions of deep foundation pit, underground excavation, building hoisting machinery, tall formwork support system, high-rise external wall scaffold, construction shed, construction site fence and other parts shall be inspected, and the work can be resumed after being accepted by the construction, construction and supervision parties.
Rainwater will cause damage to the machine in terms of corrosion and water inflow of filter element.
5、 Site drainage and defense.
First, the construction environment is more complex, and rainfall will promote muddy, puddle and even flood and other adverse construction conditions; Second, the maintenance requirements of construction machinery are higher.
The labor service personnel shall not leave the living area unless necessary.
According to the forecast of the Provincial Meteorological Bureau, there will be multiple rounds of heavy rainfall in some areas of our province in the near future, accompanied by strong lightning and strong convective weather.
According to the forecast of the meteorological department, the strongest continuous rainstorm process this year will occur in our city from November to 15; There was heavy rain to Rainstorm on the 11th, and the strongest rainfall period was from the 12th to the 13th, with rainstorm to heavy rainstorm; There was still heavy rain on the 14th-15th; The accumulated rainfall in the process is 200-300 mm, local rainfall is more than 350 mm, the maximum hourly rainfall intensity is 60-100 mm, and local rainfall in Shenshan is more than 400 mm.
Safety knowledge of mechanical construction in rainy season precipitation in rainy season is also a great challenge for our construction.
Therefore, Xiaobian summarized some “construction operation and maintenance knowledge that should be paid attention to in mechanical construction in rainy days”, hoping to give you some reference.
of the machine shall be kept in normal operation to ensure construction safety.
Experienced operators can often judge whether there is the possibility of landslide, landslide and debris flow from these details, and take precautions as soon as possible.
The district housing and construction bureaus and urban supervision institutions shall immediately convey the shutdown instructions to each project under construction, check the implementation of the shutdown requirements through on-site inspection and remote video inspection, and investigate and deal with those who fail to stop work as required in strict accordance with the relevant regulations.
If the ground is soft in these places, it is very easy to cause the machine to fall or overturn.
It is expected that the rainfall in our city will gradually increase from the early morning of the 11th, with heavy rain to rainstorm, accompanied by scattered thunderstorms.
It is strictly prohibited for the labor service personnel to play mahjong, drink and have dinner and other gathering activities.
When working on wet and slippery ground, be sure to pay attention to the surrounding environment and observe it all the time to avoid the machine too close to the edge of cliff and ditch.
Due to the reduced friction coefficient, the loader can use a small throttle to maintain stability when pushing and shoveling materials, so as to reduce the damage of skidding to the tire.
Shenzhen issued an emergency notice on the overall shutdown of construction sites in the city.
Observe the subgrade and road conditions ▶ When working in rainy days, we must pay attention to the road conditions.
It is hereby decided that from May 11, the construction work at the construction sites under construction in the city will be completely stopped.
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Temporary dormitories such as construction sheds are strictly prohibited to be set in dangerous areas such as low terrain and high slope bottom, which must meet the requirements of wind resistance and waterlogging drainage; For temporary facilities such as gatehouse, enclosure and plank house, cable and wind rope measures shall be taken when necessary.
Before the completion of construction, ensure sufficient fuel to evacuate the working area at any time in case of emergency.
Check whether the mountain is broken, whether there is unreasonable excavation, spoil, slag, quarrying, etc., and whether the vegetation is well attached.
If necessary, it is best to install anti-skid chains on the equipment to increase the grip of tires.
4、 Construction lightning protection.
Pay attention to anti-skid and install anti-skid chains in advance ▶ During construction in rainy season, the road surface is wet and slippery.
3、 Hoisting machinery defense.
Tower cranes in the working environment of tower groups shall take anti-collision and other safety measures.
The Provincial Department of housing and urban rural development issued the essentials of construction site defense of housing and municipal engineering during heavy rainfall.
Protective measures against thunderstorm and strong wind shall be implemented for temporary facilities such as foundation pit support, earth excavation, underground concealed excavation, high formwork support system, installation and disassembly of building hoisting machinery, high-rise external wall scaffold and site fence.
If necessary, large crawler cranes can take pole lying measures according to the requirements of typhoon prevention.
In order to fully implement the relevant work deployment of the provincial Party committee and the provincial government and the requirements of the provincial headquarters for flood prevention on strengthening safety prevention in flood season, and effectively do a good job in heavy rainfall prevention, the Provincial Department of housing and urban rural development quickly printed and distributed the essentials of construction site defense of housing and municipal engineering during heavy rainfall, guiding and urging the construction sites and participating enterprises in the province to fully implement various responsibility measures.
However, it should be noted that the tire pressure should be sufficient, the wheel hub and wheel width should match the size of the anti-skid chain, the driving speed should not be too fast after installation, and sudden acceleration / deceleration will cause damage to the anti-skid chain..
If you are working in a mountainous area, you must pay attention to observation before the rainstorm.
During night construction, the front and rear headlights, working lights, ceiling lights, instrument lights, wipers, etc.
After the severe convective weather is over and the municipal bureau issues the order to resume work, the construction unit shall take the lead in organizing the construction and supervision units to conduct a comprehensive investigation on the construction site, and the work can be resumed only after the potential safety hazards are eliminated.
After the rain, the soil is soaked in water, and the ground is particularly wet and slippery.
During the operation of excavator and crane, check whether the construction site is soft to avoid vehicle sinking.
