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The Geostress Measurement Laboratory

The lab of geostress measurement, the first institution on geostress monitoring and research was first established by Professor Li Siguang in late 1950s, mostly for earthquake monitoring and prediction. Subsequently, theories and methods of geostress measurement have been developed and greatly improved; a variety of equipment and devices on geostress measurement have been developed through years. At present, methods on geostress measurement include piezomagnetism, hollow inclusion, hydraulic fracturing, borehole breakout, acoustic emission, and anelasticity recovery.  Continuous geostress monitoring include a variety of comprehensive methods, such as piezomagnetic stress monitoring method, capacitive borehole strainmeter method and volumetric borehole strainmeter method, which are widely used in major projects on geodynamic research, geological disaster prediction, water conservancy and hydropower enginnering, site-choosing for rail and road tunnels,  the nuclear waste disposal and strategic oil reserves.

 

 
 Geostress measurement points
in the Kunlun Mountain
 The Yangbajing geostress measurement site
   
 Lhasa Geostress monitoring site  The construction site of geostress
monitoring hole of the Tibetian Railway
   
 Construction of the geostress monitoring station in the Kunlun Mountain Pass
along Tibetian railway
 The comprehensive monitor probe

 

The geostress diagram along the Tibetian Railway and
the west line of  South-North Water Diversion Project
Geostress measurement and monitoring
after the Wenchuan earthquake
The Daijiaba geostress monitoring station
The distribution diagram of geostress measurement points
before and after the Kunlun Mountain earthquake




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