Cone penetration test (CPT) has been gradually used more than 50 years in China in a wide area of engineering, and now is accepted by geotechnical engineers as an in-situ testing measure.

Discussing of the problem about static sounding;

Application of static sounding in evaluating earthquake effect of field and foundation;

Application of the static sounding in Daqing Area;

Application of dynamic rigidity and dynamic penetration to consolidated foundation test;

Taking the actual project as an example,based on the sinks of the tamped area,the apophysis and the dynamic penetration result,this technique can achieve the anticipated reinforcement effect.

The evaluation method of broken-stone soil according to relative standards by means of dynamic penetration is clearly specified.

Using the artificial neural network to calculate liquation index by static cone penetration test;

Application of static cone penetration test to the ground investigation of Hefei-Wuhu Expressway;

Complex analysis on static cone penetration test curves in loess area;

Comparison of bearing capacity of composite foundation between static load test and dynamic sounding test;

Based on existing design and test method,dynamic sounding test,cores method,unconfined compression test,and plate load test in site are used to analyze the quality test and reinforcement effect of the cement-soil mixed piles for a practical project.

According to the problems existed in strength determination and test method of triaxial soil-cement mixed pile,several strength tests were carried out on soil-cement piles,including trial of drilling core of soil-cement mixed pile,trial of taking soil-cement grout,cone penetration test,standard penetration test and dynamic sounding test.