WCZ-24C Deep Digital Engineering Seismograph Reflection Refraction Test

1)Inspecting building base, roadbed and civil engineering

*Roadbed, roadbed cavern and lava survey

*Quaternary overburden layer delamination

*Foundation soil type sorting and hazardous geological body survey

*Foundation soil medium physical property delamination survey

*Foundation reinforcement and roadbed backfilling survey

*Bedrock depth and hidden geologicalstructure prospecting

2)Engineering inspection

*Tunnel line survey and wall rock classification

*Concrete lining quality detection

*Tunnel bottom detection and pilot detection

*Tremor monitoring

3)Large-scale and medium-scale water reservoir monitoring

*Dykes and dam incipient fault detection

*Reservoir silt survey and silt discharging quality inspection

*On backfilling stone detection of large-scale or medium-scale dam

4)Bridge engineering inspection

*Bridge pier foundation inspection

*Bridge pier concrete inspection

*Bridge tremor inspection

5)Environmental and geologic hazards detection and evaluation

*Landslide, karst, debris flow, mined-out area, active fault detection, etc.

*Main Technical Specifications of Digital Seismograph:

l Channel number: 24

l Sample stations: 1024, 2048, 4096, 8192, 16384

l Sample frequency:

ü Generally, 10μs, 25μs, 50μs, 100μs, 200μs, 500μs, 1ms, 2ms, 5ms, 10ms, 20ms

ü For micro-tremor survey, 1ms ~ 200ms selectable

l A/D converter: 24bit

l Signal stack and amplification: 32 bit

l Dynamic range: 140dB

l Frequency bandwidth: 0.1Hz ~ 4000Hz

l Noises: 1μV(full-frequency state)

l Amplitude consistency: ±0.2%

l Phase consistency: ±0.01ms

l Time lapse: 0 ~ 9999ms

l Data format: SEG-2

l Working temperature: 0℃~ 50℃, 90%RH

l Storage temperature: -20℃ ~ +60℃

*Types of seismic waves

There are two main types of seismic waves: surface waves and body waves. Surface waves are only transmitted on the surface, while body waves can pass through the interior of the earth.
Body waves: Transmitted inside the earth, they are divided into P waves and S waves.

P waves: P stands for primary or compression, which is a longitudinal wave. The particle vibration direction is parallel to the wave's forward direction. Among all seismic waves, it has the fastest forward speed and arrives the earliest. P waves can be transmitted in solids, liquids or gases.
S waves: S stands for secondary or shear, which has a forward speed second only to P waves. The particle vibration direction is perpendicular to the wave's forward direction. It is a transverse wave. S waves can only be transmitted in solids and cannot pass through the liquid outer core.
Simple earthquake positioning can be performed by using the different transmission speeds of P waves and S waves and the travel time difference between the two.
Surface Wave: Surface waves caused by shallow earthquakes are the most obvious. Surface waves have the characteristics of low frequency, high amplitude and dispersion. They are only transmitted near the surface and are the most powerful seismic waves.
Love Wave: The vibration direction of particles is perpendicular to the direction of wave advance, but the vibration only occurs in the horizontal direction without vertical components. It is similar to S waves, but the difference is that the lateral vibration amplitude decreases with increasing depth.
Rayleigh wave: Also known as ground roll wave, the particle movement is similar to sea waves. On the vertical plane, the particles vibrate in a counterclockwise elliptical shape, and the vibration amplitude also decreases with increasing depth.

*Short Intruduction of Company:

Chongqing Gold Mechanical & Electrical Equipment Co.,Ltd is a high-technology enterprise for researching,designing,developing and producing oil treatment equipment.With it’s continuous drawing of lessons,unremitting innovation and borrowing of advanced technology form both at home and abroad,our company is now becoming a professional manufacturer of oil purifiers which are excellent in quality,capable of standing wear,complete in various styles.And it’s aviation,ship,railway,pharmacy and edible oil processing.Though highly acclaimed and favorably accepted by numerous customers and possessed of the right to import and export,to ensure the high quality of our products,we conduct our manufacturing in strict accordance with the standard JB/T5285-2001 by Ministry of Machine Building,standard DL/T521-2004 by Ministry of Power Industry.

Our main products range is mechanical and electrical products (compact machinery, concrete machinery, pavement machinery, scraper armed, road machinery, small machinery, hoisting machinery, fire engine, sanitation equipment, pile-driving machinery, bridge inspection car, lorry-amount crane, overhead working truck, mining machinery, aerial work platforms, forklift, car and motorbike etc.)

We have persisted on the business idea of “Integrity Basis and Quality First” for the stable and constant development.We are making effort to develop together with customers from both domestic and abroad on the basis of reciprocity.Client,quality and service are our supreme target.

WELCOME TO VISIT !!!