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Pre-tensioned and post-anchored prestressed anti-floating anchor rod construction method

A technology of anti-floating anchor rods and construction methods, which is applied in the direction of foundation structure engineering, sheet pile walls, protective devices, etc., can solve the problems of complex construction and poor anti-floating effect, and achieve simplified construction steps, enhanced anti-floating effect, Ease of construction management

Inactive Publication Date: 2019-05-28
SHENZHEN INST OF GEOLOGICAL ENVIRONMENT CO LTD
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a construction method for prestressed anti-floating anchor bolts that are pre-tensioned and then anchored, aiming to solve the problems of poor anti-floating effects and complicated construction in the construction of geotechnical anchoring projects in the prior art

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  • Pre-tensioned and post-anchored prestressed anti-floating anchor rod construction method
  • Pre-tensioned and post-anchored prestressed anti-floating anchor rod construction method

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Embodiment Construction

[0023] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0024] The implementation of the present invention will be described in detail below in conjunction with specific embodiments.

[0025] In the drawings of this embodiment, the same or similar symbols correspond to the same or similar components; The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, or in a specific orien...

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Abstract

The invention relates to the technical field of prestressed anti-floating anchor rod construction, and discloses a pre-tensioned and post-anchored prestressed anti-floating anchor rod construction method. The pre-tensioned and post-anchored prestressed anti-floating anchor rod construction method comprises the following steps: 1) performing prestressed anchor rod construction; and forming a drilling hole in a soil body by construction, lowering a prestressed anchor rod to drill a hole, and pouring mud in the drilled hole after the prestressed anchor rod is lowered, wherein the prestressed anchor rod comprises an anchor head and a rod body; 2) enabling the anchor head to be positioned out of the drilled hole, and enabling the rod body to be located in the drilled hole; excavating along theperiphery of the anchor head to form a construction groove, and performing reinforced concrete construction in the construction groove to form an anchor pier; 3) tensioning and locking the prestressedanchor rod; and 4) constructing an underground structure above the soil body, and anchoring the anchor head into the underground structure. Therefore, prestressed anchor rod construction, anchor pierconstruction and underground structure construction are not interfered with one other, and construction management is facilitated; tensioning and locking are facilitated, and construction steps are simplified; and moreover, restraining force is generated on the underground structure to prevent the underground structure from floating upwards, and the underground structure is prevented from floating upwards and deforming, so that an anti-floating effect is enhanced.

Description

technical field [0001] The patent of the present invention relates to the technical field of prestressed anti-floating anchor rod construction, in particular, it relates to a prestressed anti-floating anchor rod construction method which is pre-tensioned and then anchored. Background technique [0002] Anti-floating anchor is an anti-floating technology used by underground structures to resist water buoyancy. It is widely used at home and abroad, especially in China in recent years. The buried depth of hydraulic construction and other underground projects is getting deeper and deeper, and anti-floating anchors are increasingly playing an irreplaceable important role. [0003] Anti-floating anchors are generally permanent structures, which are divided into two categories: prestressed anchors and fully bonded anchors (non-prestressed anchors). [0004] Full-bonded anchor rods are used: bare anchor bars are used for the anchor bar, and cement slurry is poured into the borehole...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D31/12E02D5/74
CPCE02D5/74E02D31/12
Inventor 付文光吴胤李红波谢成器李新元戴锦鸿高升坚
Owner SHENZHEN INST OF GEOLOGICAL ENVIRONMENT CO LTD
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