Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Single pile foundation at sea with cement mixing pile reinforced foundations

A technology for cement mixing piles and single-pile foundations, which is applied in basic structure engineering, sheet pile walls, buildings, etc., can solve the problems of affecting the power generation efficiency of wind farms, high construction difficulty of single piles, and limited horizontal constraints, so as to improve power generation. Benefit, improve the natural frequency, reduce the effect of horizontal side shift

Pending Publication Date: 2019-11-12
SHANGHAI INVESTIGATION DESIGN & RES INST
View PDF0 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although steel pipe piles have relatively high bending stiffness, the soil on the foundation surface around the piles can provide limited horizontal constraints.
If a conventional single pile foundation is adopted, increasing the pile diameter, pile length or wall thickness will lead to more material consumption, and the increase in the weight of the single pile will also bring higher construction difficulty, which will increase the foundation cost rapidly and affect the wind farm. power generation benefit

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Single pile foundation at sea with cement mixing pile reinforced foundations
  • Single pile foundation at sea with cement mixing pile reinforced foundations
  • Single pile foundation at sea with cement mixing pile reinforced foundations

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] The specific implementation manners of the present invention will be described in further detail below in conjunction with the accompanying drawings. These embodiments are only used to illustrate the present invention, not to limit the present invention.

[0032] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying Describes, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and operate in a specific orientation, and therefore should not be construed as limiting the inventio...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention belongs to single pile foundation at sea with cement mixing pile reinforced foundations of the field of pile foundation of ocean engineering. According to the technical scheme, a steel pipe pile is sunk into soft soil foundations of a seabed, in the soft soil foundations, the reinforce foundations formed by a underwater deep-layer cement mixing method are arranged around the steel pipe pile, and the reinforced foundations is a rotary body coaxial with the steel pipe pile; and the reinforced foundations comprise cement mixing pipes and soft soil between the cement mixing pipes. According to the single pile foundation, the horizontal bearing capacity is high, horizontal displacement of a pile top is small, an inclination angle of a pile body is small, rigidity of foundation islarge, and the single pile foundation is applied to the characteristic of large horizontal load of an offshore wind turbine, the strict requirements of the offshore wind turbine to the foundation horizontal displacement and the inclination angle of the pile body are met, and the requirement of overall natural vibration frequency of 'structure and foundation' is met.

Description

technical field [0001] The invention relates to the field of pile foundations of marine engineering, in particular to an offshore single pile foundation with high horizontal bearing capacity in soft soil foundations. Background technique [0002] Offshore wind power generation is the focus of development in the field of new energy, and the market prospect is very broad. The fan unit has strict control standards for the horizontal displacement and uneven settlement of the foundation, and the natural vibration frequency of the "structure + foundation" needs to avoid the driving frequency of the external load. At present, the common foundation types of offshore wind turbines include single pile, high pile cap, multi-pod, jacket type, gravity type, negative pressure bucket and floating platform structure, etc. In offshore wind power projects, monopile foundations are widely used because of their advantages such as small footprint, simple structure, quick construction, and low c...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): E02D27/42E02D27/12E02D27/52E02D5/46E02D5/28E02D19/18
CPCE02D27/425E02D27/12E02D27/52E02D5/46E02D5/285E02D19/18
Inventor 闾泽洋王冬珍姜娟周莉莉戴国亮
Owner SHANGHAI INVESTIGATION DESIGN & RES INST
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products