Test on vibrosinking piles in dam foundation overburden;

The structural design of plinth slab on the overburdenfor Chakanwusu Project on the Kaidu River;

Application of Multichannel Transient Surface Wave Technique in Investigation for Overburden;

The processing methods of overburden layer on Mg alloys and the correlative national standards;

Excavation of deep and thick overburden layer in the foundation pit of Daxia Hydropower Station in the second stage;

After change from open-pit mining to underground mining,the deep drill holes in Shangqing zone of Banshigou Iron Ore Mine meet in winter always the trouble of freezing due to thin thickness of overburden layer.

The principle,operation,advantages and disadvantages of six tests for the weld of cladding coverboard of Ti/Steel clad plate equipment is indroduced,that is visual inspection,nondestructive test(NDT),air tightness test,ammonia leak detecting,helium leak detecting,and hot gas cycle test.

The effective corrosion protection measures for natural gas pipelines are described, and the advantages and disadvantages of several coatings of good performances and their application processes are discussed.

Performances and applications of several kinds of organic coatings for gas pipelines are introduced and analyzed.

The selection of the appropriate coating system and cathodic protection material and equipment based upon the soil conditions of the pipeline route is studied, and economics and the importance of the cathodic protection in pipeline operation are highlighted.