It introduces the reinforcing design of concrete pile increasing section and constructing methods as well as structural measures to ensure concrete general pile work after reinforcement,meantime,it also introduces calculation and controlling in using steel stress after pile s reinforcement,in order to spread the application of increasing section reinforcement methods.

Based on an analysis of the main dam seepage status and causes of Xiawan reservoir in Fuchuan county,the author introduced the major contents and measures of anti-seepage reinforcement design,and presented the key design issues, construction technology and requirements of curtain grouting.

In this paper, based on model tests, calculation of the finite element and analysis of the prototype observed data of the anti-seepage reinforcement project of the reservoir dyke, each factor which affects seepage of the earth - rock dam is analyzed,impervious effect of the project is studied systematically.

Numerical simulation of thermal stress during construction period of seepage control and reinforcement of aged concrete dams;

So,it has an important value to study the adaptability of measures for seepage control and reinforcement.

Grouting technique in seepage reinforcement of dam of Mahe reservoir;

Then the causes of seepage was checked throuth geologic prospecting, and the measures for seepage control strengthening have been made, the effect of which is well.

Through the introduction about three kinds of check measurement techniques, such as geologic prospecting, isotope tracing and DB-3I, used in seepage control strengthening of Hongzehu Levee, it is explained that the methods of underground seepage control wall with vibratory model sinking and compaction grouting et al are effective for seepage control strengthening.