100MHz bistatic antenna
100MHz monostatic antenna
Data collect
Connecticut 河底图像
Lake GPR profile filtered with RADAN
Filtered data
Raw data
200MHz antenna
野外工作程序
• • • • • • • 选择一条试验测线 选择一种测量方法 确定剖面线或者测网形式 沿试验测线对天线的适用性进行测试 进行测量 在试验线上重新测量 由已知埋藏深度的目标体来确定速度.
二维探测测线布置
三维探测测线布置
Antennas and applications
100MHz antenna
Antenna:100MHz
100MHz antenna
100MHz inner structure
Radar antenna signal
GPR and configurations
100MHz antenna survey soil
operator manually pulling the antenna across the 10-m survey transects.
1500MHz antenna
1500MHz Bridge
Highway Mapping
Utility scan 1 survey_instrument
Utility scan 2 survey_line
Utility scan GPR
Utility scan 3 data
Utility scan 4 software
GPR @ FIELD
GPR @ FIELD
准备工作
• 调查测区的工作环境、收集相关的地质、地球物 理、钻探资料； • 初步了解背景场（围岩）的特性，目标体的深度、 几何形态、电性。 • 测网布置：建立测区的坐标、针对目标体布置测 线、测网。
测量参数选择
• 天线的中心频率、时间窗口、采样率、测点点距、 天线间距。
StructureScan
• Inspect floors, decks, slabs,tunnels, balconies, garages • Locate rebar, tension cables,conduits, voids, PVC pipes,measure slab thickness • Thousands of square feet of concrete can be inspected in a day • Locate targets to a depth of 18 inches and more in concrete • Detect and map the relative concrete condition for rehab planning • Faster, safer and lower cost than radiography (X-Ray) • Only single-sided access needed
衬砌层底
空洞
Survey water belt in tunnel using radar
含水区
漏水孔
含水区
漏水孔
1500MHz antenna
1500MHz Antenna
1500MHz antenna
1500MHz Antenna
1.5GHz and pipes
Pipes
Pipes
1.5GHz and deterioration
QuickDraw Super 3D image of radiant heating coil (top) in 12inch slab with rebar mat (middle) and metal conduit (bottom) running underneath the rebar.
900MHz
900MHz antenna
900MHz Antenna
Tunnel survey
.
Sir radar in China
左图是华能集团所属地学技术公 司用SIR－10A雷达配900MHz和 500MHz天线，在广西象山隧道探 测隧道沉砌厚度钢筋数量及工程 病害调查的工作情景。
138m 140m 141m
Railway detectors setup
Sir-20 at railway
Road bed survey
路基隐患调查的雷达系统
Result data under road bed
路基隐患的雷达调查剖面
500MHz & limestone
500MHz & limestone
900MHz antenna
0m 0.5m
钢筋 沉砌底部
1m
1.5m
左下图是劳雷公司的工程 技术人员使用SIR－10A探 地雷达配500MHz天线，在 北京某工地检测建筑构件 的雷达平面，图中钢筋分 布反映非常清楚。
空洞
780m 800m 802m
0m
0.5m
钢筋
1m
沉砌底部 沉砌底部与围岩的缝隙区
1.5m
空洞
隧道衬砌和围岩中空洞检查
200MHz
400MHz
400MHz antenna
Marker and survey wheel
Survey wheels
Survey wheel setup
Survey wheel picture
400MHz antenna
400MHz
Road Scan Four channels
Bridge deck 5100 Antenna Survey
with the Model 5100 - 1.5 GHz Antenna and New Interpretation Software
Bridge Deck Inspection System Bridge deck inspection
Bridge scan 1 survey_picture
Bridge scan 2 survey_instrument
Bridge scan 3
StructureScan
Sir-20
StructureScan
StructureScan 2
StructureScan 3
StructureScan