A large caisson of 51m×45m in cross section,20m sinking depth and 43,000m 3 concrete is used in Xiangfaan power plant. The installation of the caisson with grouting reinforcement went on smoothly and the conatruction was succssful.

increasing the sinking depth of the structure and improving the strength of the backfilling earth are the effective measures in engineering projects.

The differential equation for the stress transfer in the sinking process of a bucket is established. The relation of the greatest sinking depth of the bucket by itself weight with the weight of bucket, the vertical load, the geometric parameters of the bucket, and the mechanical properties as well as the frictional strength between soil and bucket is obtained.

Sinking speed and sinking depth of krill eggs are discussed in the light of laboratory experiments of Marschall (1983), Quetin and Ross (1984), and George and Str?mberg (1985).

At each corner of the cube, the values of entrainment and sinking depth are also given.

The jacked pile,as one of the types of pile foundation engineering,overcomes the resistance of soil and sinks to the preset level by less static pressure while affording a larger bearing capacity.In recent years,jacked piles have got great progress in Shanghai.Since the jacked piles will not produce stresses as those caused by monkey pile,so the requirements of reinforcement and concrete strength of the jacked piles will be much lower than those of the driven pile.In this paper,tests about bearing capacity and...

The jacked pile,as one of the types of pile foundation engineering,overcomes the resistance of soil and sinks to the preset level by less static pressure while affording a larger bearing capacity.In recent years,jacked piles have got great progress in Shanghai.Since the jacked piles will not produce stresses as those caused by monkey pile,so the requirements of reinforcement and concrete strength of the jacked piles will be much lower than those of the driven pile.In this paper,tests about bearing capacity and settlement of the jacked pile have investigated through engineering projects. By which the writers presents some new suggestions and viewpoints about the resistance force of the jacked pile during sinking,especially the maximum sinking depth,the maximum loading on pile and its bearing soil layer

A large caisson of 51m×45m in cross section,20m sinking depth and 43,000m 3 concrete is used in Xiangfaan power plant.The installation of the caisson with grouting reinforcement went on smoothly and the conatruction was succssful.

The distribution mode of earth pressure along different sides of large-diameter cylinder structure in the critical state is studied and the condition of anti-overturning stability of large cylinder is put forward. According to the practical engineering case, it is concluded that: the structure will rotate around a certain point on the axis when losing stability; the anti-overturning moment which is formed of the resistance of the earth in front of the cylinder and above the turning point and that behind the...

The distribution mode of earth pressure along different sides of large-diameter cylinder structure in the critical state is studied and the condition of anti-overturning stability of large cylinder is put forward. According to the practical engineering case, it is concluded that: the structure will rotate around a certain point on the axis when losing stability; the anti-overturning moment which is formed of the resistance of the earth in front of the cylinder and above the turning point and that behind the cylinder and under the turning point takes a great proportion of the overall anti-overturning moment; increasing the sinking depth of the structure and improving the strength of the backfilling earth are the effective measures in engineering projects.