Stake-barrel base

Abstract

The invention provides a pile-barrel foundation applied in coast, shallow-sea and deep-sea project, characterized in that it comprises a pile and a barrel with cavity at the center of top cover; the pile passes through the cavity to form Jin-shape structure. In construction, at first the barrel is set to presetting level position on submarine foundation; then the pile passes through the cavity at the center of top cover to presetting level position on submarine foundation; finally the pile and the barrel is consolidated at the junction position. The invention can bear heavy uplift, down-stroke, horizontal load. Special simulating test proves that the construction time of pile-barrel foundation is 1 / 4-1 / 2 of conventional pile foundation and the project cost is 60%-80% of pile foundation. It is provided with simple operation. The barrel foundation can be used again. In construction, there is no any pollution and waste object. It has huge social and economical benefit.

Description

technical field [0001] The invention relates to the foundation structure type of coastal, offshore and deep-sea engineering, in particular to a pile-barrel foundation, which is suitable for the design and implementation of the foundation structure of coastal engineering and ocean engineering. Background technique [0002] At present, pile foundations or gravity foundations are usually used for foundation structures of wharf engineering, coastal engineering and ocean engineering, and barrel foundations studied in recent years. The gravity foundation mainly uses the self-weight of the foundation to maintain the stability of itself and the structure, bear the load and spread the stress to the subsea foundation. However, the gravity foundation is large in size and is greatly affected by wind, waves, and ocean currents, which may easily cause the foundation to become unstable. The pile foundation is that the pile bears the load through the friction of the pile side surface of the...

AI Technical Summary

Problems solved by technology

However, because the sinking characteristics of the bucket foundation are suitable for the mud-sand soft soil foundation conditions of the seabed, the diameter and height of the bucket foundation must be large in order to obtain a large bearing capacity, which has resulted in design theory research and engineering manufacturing, towing. , It is very difficult to settle; at the same time, since the barrel foundation is placed in the mud, sand and soft soil of the seabed, the settlement and horizontal displacement of the foundation are not suitable for control

Therefore, under the condition of heavy load and deep water, the existing foundation structure has its serious shortcomings. The inapplicability of the matrix bed and its weak resistance to horizontal

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