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Steel pipe screw anchor pile group foundation

A technology of group pile foundation and screw anchor, applied in the direction of foundation structure engineering, construction, etc., can solve the problems of low bearing capacity and high cost of steel pipe piles, and achieve the effect of improving bearing capacity and facilitating transportation

Inactive Publication Date: 2020-08-25
HUZHOU ELECTRIC POWER SUPPLY CO OF STATE GRID ZHEJIANG ELECTRIC POWER CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention solves the problems of low pressure bearing capacity of conventional spiral anchor foundations and high cost of steel pipe piles, and proposes a steel pipe spiral anchor pile group foundation, which has good pressure bearing and tension bearing capacity, and at the same time, the cost is lower than that of steel pipe piles

Method used

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  • Steel pipe screw anchor pile group foundation
  • Steel pipe screw anchor pile group foundation
  • Steel pipe screw anchor pile group foundation

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Embodiment

[0020] The present invention proposes a steel pipe spiral anchor pile group foundation, referring to figure 1 , including a base, the base includes 3 parallel mounting blocks 1 and two connecting blocks 2 vertically placed with the mounting block 1, the connecting block 2 is fixedly connected with the mounting block 1, and the mounting block 1 is fixedly connected with the steel pipe spiral anchor.

[0021] A steel pipe spiral anchor of a vertical base is fixed in the middle of the bottom of the base, and 8 steel pipe spiral anchors 3 at a certain angle with the steel pipe spiral anchors of the vertical base are fixed around the bottom of the base, and the angle range is 2° to 15°. The pile body is arranged with a slight inclination, which can withstand large longitudinal and horizontal forces.

[0022] refer to figure 2 and image 3 The steel pipe spiral anchor 3 includes a steel pipe seat 4 and a steel pipe 5 fixed on the steel pipe seat 4, the steel pipe seat 4 is fixedl...

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Abstract

The invention provides a steel pipe screw anchor pile group foundation. The steel pipe screw anchor pile group foundation comprises a base, a plurality of steel pipe screw anchors perpendicular to thebase are fixed to the middle of the bottom of the base, and steel pipe screw anchors forming a certain angle from 2 degrees to 15 degrees with the steel pipe screw anchors perpendicular to the base are fixed to the periphery of the bottom of the base. Pile bodies of the steel pipe screw anchor pile group foundation are arranged in a slightly inclined manner and can bear relatively large longitudinal force and horizontal force; the steel pipe screw anchors greatly improve the bearing capacity and reduce the length of the pile bodies by 30% or above; and the manufacturing cost is reduced by about 19%-24% compared with that of steel pipe piles. The steel pipe screw anchors have a small diameter and a low piece weight, so that transportation in river network areas is facilitated.

Description

technical field [0001] The invention relates to the technical field of construction, in particular to a steel pipe spiral anchor pile group foundation. Background technique [0002] Steel pipe pole structure is often used in power transmission line engineering, and the steel pile is composed of steel pipe, tongue and groove, and tenon and tenon pin. The pipe material of the steel pile is generally made of ordinary carbon steel. According to the processing technology, it is divided into two types: steel pipe with spiral seam and steel pipe without spiral seam. Due to the high rigidity of the steel pipe with spiral seam, it is often used in engineering. Steel pipe rods and steel pipe piles adopt two methods of plug-in anchorage or flange connection. [0003] The spiral anchor foundation is composed of spiral anchor, channel steel and angle steel, which is a fully assembled foundation without concrete. The pressure bearing capacity is average, but the tensile force is better....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D27/12E02D27/50
CPCE02D27/12E02D27/50
Inventor 王瑞杨斌俞强詹锐锋缪正俞伟勇张刚章旭泳寿峰刘平平严静萍
Owner HUZHOU ELECTRIC POWER SUPPLY CO OF STATE GRID ZHEJIANG ELECTRIC POWER CO LTD
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