Multilayer blade-typed multipoint displacement metre anchor head used for soft soil layer

A blade-type, displacement meter technology, applied in the field of foundation soil survey, construction, infrastructure engineering, etc., can solve the problems that affect the accuracy of measurement data, can not be anchored with soft ground, soil structure damage, etc., to improve the anti-skid Ability, reliable anchoring effect, and strong anti-skid ability

Inactive Publication Date: 2013-03-06
TONGJI UNIV
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  • Abstract
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Problems solved by technology

However, this patent is more suitable for anchoring in soil foundation pits and slope walls, and is not suitable for anchoring in water-rich and soft soil layers. If high-pressure grouting is used to open the anchor and cut into the wall of the anchor hole, it will cause damage to the soil structure. Destruction, affecting the accuracy of measurement data
[0006] Chinese patent CN 207622U pipe seam

Method used

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  • Multilayer blade-typed multipoint displacement metre anchor head used for soft soil layer
  • Multilayer blade-typed multipoint displacement metre anchor head used for soft soil layer
  • Multilayer blade-typed multipoint displacement metre anchor head used for soft soil layer

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Embodiment Construction

[0030] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings.

[0031] like figure 1 As shown in the figure, this embodiment is used for the multi-layer vane type multi-point displacement meter anchor head for the soft soil layer. There are three in-hole measuring point anchoring head units 1 successively in the longitudinal direction. The actual situation determines the series-connected anchoring head according to the number of measuring points. number of units.

[0032] like Figure 4 , Figure 5 As shown, in this embodiment, three anchor grips 22 and three torsion springs 20 are arranged in the anchoring head unit 1 of each hole in each hole, and there are also three pairs of indium steel wires and fixed pulleys between the torsion springs and the compression springs. Relatively, the 120° angle distribution in the circumference. This is only a preferred embodiment, and the protection scope of the techn...

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Abstract

The invention discloses a multilayer blade-typed multipoint displacement metre anchor head used for a soft soil layer, wherein the anchor head comprises a plurality of measuring point anchoring head units arranged in a drilling hole of a to-be-tested soil body; each measuring point anchoring head unit is orderly and vertical to each other and connected with each other through a casing pipe from head to tail; each measuring point anchoring head unit is fixed with one longitudinal measuring point of the drilling hole. Each measuring point anchoring head unit comprises a main anchoring head and an anchoring head protective cover, wherein each main anchoring head and each corresponding anchoring head protective cover are connected in thread. The multipoint displacement metre anchoring head in the invention can drive three blade-typed anchoring grasps synchronously with three springs; utilizes elastic energy released instantly to cut into the soft soil to finish anchoring; is not limited by field condition; and is convenient in installation, simple in structure, strong in reliability and stability, good in anchoring effect, strong in anti-skid ability and reliable in performance.

Description

technical field [0001] The invention relates to a multi-point displacement gauge anchor head, and more particularly to a multi-layer blade type multi-point displacement gauge anchor head for soft soil layers. Background technique [0002] For construction projects in soft soil areas, due to the characteristics of high water content, high compressibility, high thixotropy, and low strength of soft soil layers, construction in soft soil areas will lead to large soil deformation. Safety, engineers and technicians need to constantly understand the settlement and deformation of the soil during the construction process, analyze the "time effect" and "space effect" of the soil deformation, to judge the rationality of the project construction, timely feedback analysis and revise and optimize the project construction. Existing problems are used to guide subsequent project construction. At present, most of the soil displacement gauge anchor heads in soft soil areas are anchored by wat...

Claims

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Application Information

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IPC IPC(8): E02D1/00
Inventor 王建秀邹宝平周小博刘笑天
Owner TONGJI UNIV
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