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A rock-socketed single-pile double-tube construction auxiliary device and its construction method

A technology of auxiliary device and construction method, which is applied in the direction of sheet pile wall, foundation structure engineering, construction, etc., can solve problems such as rock-socketed construction, and achieve the effect of reducing wave force and cross-sectional area

Active Publication Date: 2018-07-03
POWERCHINA HUADONG ENG COPORATION LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a rock-socketed single-pile double-tube construction auxiliary device and its construction method in view of the above-mentioned problems, so as to solve the problems of large-diameter single-pile rock-socketed construction in shallow overburden layers, etc.

Method used

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  • A rock-socketed single-pile double-tube construction auxiliary device and its construction method
  • A rock-socketed single-pile double-tube construction auxiliary device and its construction method
  • A rock-socketed single-pile double-tube construction auxiliary device and its construction method

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Embodiment Construction

[0021] Such as figure 1 , figure 2 and image 3 As shown, this embodiment is a double-tube construction auxiliary device for rock-socketed single piles, which is applied to the drilling rig construction of large-diameter rock-socketed single piles for offshore wind turbines. The device has a conical columnar (with a certain wall thickness) outer casing 6 sunk to the seabed surface and a cylindrical (with a certain wall thickness) inner casing 1 driven into the outer casing to below the seabed surface. The elevation of the top of the casing is higher than that of the top of the outer casing; the upper part of the inner casing 1 is provided with an auxiliary platform 4, which is welded to the bottom of the outer casing 6 through six diagonally symmetrically distributed diagonal braces 2; A strut support 3 is welded between the upper parts of the casing 6 to improve the stability of the overall structure; there is no direct connection between the inner casing 1 and the outer c...

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Abstract

The invention relates to a rock-embedded single-pile double-cylinder construction assisting device and a construction method thereof, and aims to solve the problems of shallow-covered layer large-diameter single-pile rock-embedded construction, and the like. According to the technical scheme of the invention, the rock-embedded single-pile double-cylinder construction assisting device is characterized by comprising a conical pile-shaped outer protecting cylinder and a columnar inner protecting cylinder, wherein the conical pile-shaped outer protecting cylinder is sunk to a seabed; the columnar inner protecting cylinder is sunk into the outer protecting cylinder; the upper end of the inner protecting cylinder is exposed outside the outer protecting cylinder for a certain distance; an annular assisting platform is arranged at the upper end of the inner protecting cylinder; the bottom of the annular assisting platform is connected with the bottom of the outer protecting cylinder in a welded manner through a plurality of inclined support rods which are annularly and symmetrically distributed; support rods for support are welded between the inclined support rods and the upper part of the outer protecting cylinder; and a plurality of jacks which are annularly and symmetrically arranged, and a sand conveying tube which penetrates through the assisting platform and is connected with the inner wall of the outer protecting cylinder are fixed onthe assisting platform. The rock-embedded single-pile double-cylinder construction assisting device is applicable to the technical field of offshore wind power engineering, and particularly construction of rock-embedded single piles under a shallow covered foundation condition.

Description

technical field [0001] The invention relates to a rock-socketed single-pile double-tube construction auxiliary device and a construction method thereof. It is suitable for the technical field of offshore wind power engineering, especially for the construction of rock-socketed single piles under shallow overburden foundation conditions. Background technique [0002] At present, as the world pays more attention to energy development methods and environmental protection, domestic offshore wind power has ushered in great development. Fujian, Guangdong and other places, as economically developed regions, have high demand for energy and excellent wind resource conditions, so they should become the frontiers of domestic offshore wind power development. Some parts of southeast coastal areas such as Fujian have relatively shallow overburden and high foundation rigidity. The application of large-diameter single piles in this type of geology only requires rigid rock-socketed short pil...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D5/66E02D5/68
CPCE02D5/665E02D5/68
Inventor 周胡孙杏建罗金平吕娜
Owner POWERCHINA HUADONG ENG COPORATION LTD
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