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A method for detecting the quality of pile foundation

A quality inspection method and pile foundation technology, applied in foundation structure engineering, foundation structure test, construction, etc., can solve problems such as small spiral structure and insufficient adhesion, and achieve the effect of avoiding damage

Active Publication Date: 2021-04-23
中铁城投工程技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In the above structure, since the outer surface of the bolt is provided with a helical structure, the friction of the rotation of the bolt needs to be considered when setting the helical structure. If the helical structure is set too large, the bolt cannot be screwed into the ground. Therefore, in order to facilitate the screwing of the bolt into the ground, Smaller helix configurations provide insufficient adhesion

Method used

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  • A method for detecting the quality of pile foundation
  • A method for detecting the quality of pile foundation
  • A method for detecting the quality of pile foundation

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Embodiment Construction

[0039]The present invention will be further described in detail below with reference to the accompanying drawings.

[0040]referencefigure 1 withfigure 2 For a pile-based mass detecting device disclosed in the present invention, four anchor 1, the anchor 1 is vertically disposed, and the four anchor 1 is uniformly released around the pile base 10, and when the pile base 10 is detected, first The anchor 1 is vertically opened into the ground, and the lower end of the anchor 1 is provided with a tapered, and it is convenient for the anchor 1. The middle portion of the anchor 1 is provided to a hollow structure, and is an octagical hole, and a plurality of through holes 11 are provided on the side wall of the anchor 1, and each through hole 11 is provided with a telescopic claw 2, and the telescopic claw 2 is used. The inside of the anchor arm 1 is inserted to the outer portion of the anchor arm 1 from the inside of the anchor 1, and into the soil layer around the anchor 1, the jack base ...

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Abstract

The invention relates to a pile foundation quality detection device, which includes an anchor rod, a jack and a bearing frame. The anchor rod is connected to the ground, and the outer wall of the anchor rod is provided with a plurality of telescopic claws. The telescopic claws are arc-shaped, and the anchor rod is a hollow structure. There are two through holes, and a telescopic claw is installed in each through hole. The invention has the effects of being able to drive the anchor rod into the ground conveniently and providing greater adhesion. The invention also relates to a pile foundation quality detection method, which has the effect of being able to conveniently drive anchor rods into the ground and provide greater adhesion.

Description

Technical field[0001]The present invention relates to the technical field of pile foundation test, in particular, to a pile foundation quality detecting device and method.Background technique[0002]The static load test of the pile foundation is a technique for the detection of pile foundation carrying capacity. In terms of determining the ultimate bearing capacity of single pile, it is currently the most accurate and reliable test method. As a result, it is based on whether a certain driving test method is mature, the comparison error size of the static load test results. Therefore, each foundation basic design processing specification is included in the first position. In the static load test, the load acting on the pile is generally provided by the reaction device. The easiness of the anti-force devices directly affect the process and results of the test, and the commonly used stacked anti-force devices and anchor pile reaction power devices.[0003]A pile foundation detecting device...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D33/00
CPCE02D33/00
Inventor 周俊卿王俊发李志强田永刚刘锦羽吴桂昌王彦萍张胜飞
Owner 中铁城投工程技术有限公司