英语演讲PPT-地震

Good locations
Reasonable structures
Uniform and symmetrical walls
（墙体均匀对称）
•Good seismic behavior must come from relatively simple structures !
Use
supports and small spaces.
When you are in a car?
People in the car will be injured by objects fallen from the buildings.
Almost every car has a 3 feet high space next to it . You should get off the car, and sit or lie beside it.
Source
• On the ground from the recent point
Focal depth
The epicenter of the depth to the source
Shallow source earthquake(浅源地震): focal depth less than 60 kilometers. intermediate-focus earthquake（中源地震）: focal depth in 60-300 kilometers. Deep source earthquake（深源地震）: focal depth more than 300 kilometers.
of earthquakes
Inductive earthquake（有感地震）: 2.5-4.7
earthquake
Destructive earthquake（破坏性地震）: more than
4.7 earthquake
intensity
intensity（烈度） :The measure of earthquake damage(12 degrees)
Secondary disaster
Fire Floods Gas leak Plague
Sometimes, secondary disaster cause bigger casualties and losses than which were coursed by direct disaster.
Many people do not understand the triangle,Biblioteka Baiduso they teach children like this!
When an earthquake occurs, you can not do like this! 1、Shelter under the table ，bed or car 2、Crouch in the corner 3、Stand beside the door
Fire in earthquake in Kanto
The earthquake in Tangshan caused pollution in Tuojiang and caused the fish died in the river.
comparison
Death toll and
economic loss caused by the earthquake in developed countries much less than developing countries .
里氏8.5级
里氏8.0级
B E N E F I T S
1.A variety of mountains and rivers
（奇山异水）
the severe movement of the crust （地
壳）
raise up block mountains (断层山) sink down warped lakes（凹陷湖）
earthquake wave (震波) Source (震源) Focal depth (震源深度) P-wave (纵波) and S-wave (横波) magnitude(地震震级) and earthquake intensity(地震烈度)
earthquake wave
The sharp burst occurred within the earth produced
Escape from earthquake Triangle of life will be formed next to beds, desks, big furniture and cars.
What is survival triangle ?
When an earthquake occurs, you have to find a triangle of space to escape from the earthquake . These are fallen walls and beams . Survival Triangle
Impacts on human life
Damages Benefits
specific damages
Now let's look ......
The destruction
of buildings
Ground damages
Tsunamis Undersea earthquakes
P-wave and S-wave
P-wave to make the ground fluctuation bouncing off
S-wave shaking the ground level
magnitude
• • • Small earthquake（小地震）: less than 2.5 levels
Huangshan Mountain
Huashan Mountain
Lushan Mountain
Taishan Mountain
Qinghai Lake
Poyang Lake
Dongting Lake
Dianchi Lake in Yunnan
some springs South and North hot spring in chongqing province.
3、Artificial earthquake （人工地震） exploration for oil
take place before human history （人类历 史时期）a lot of benefits is helpful to the formation of petroleum
2、Abundant mineral resources
the relative motion of the crust （地壳） up to the surface of the earth for human exploration facilitated multi-metal ore （成矿）belt
（石油）
Building reinforcement
Goal: no damage under frequent earthquake , repairable damages under basic earthquake and no collapse under rare earthquake.
LOGO
Earthquake
www.themegallery.com
Contents
Earthquake knowledge Impacts on human life
Building reinforcement Escape from earthquake
1.Earthquake knowledge
Common problems in architectural engineering
Design defects Can’t meet the demands Architectural planning and location is improper Poor quality
Solutions
The right way
!
When the earthquake happens, you should do like this!
Where is the survival triangle? If you have no time to leave the house，you'd better hide in the bathroom which has lots of
wood materials
Strengthen construction management

Adoption of new technology
Seismic energy dissipation
（消能减震）
Seismic isolation(隔震）
•Bearings can support stable of the upper structure to isolate seismic energy 。