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Blade-cut-in type soft soil multi-point displacement meter anchor head

A displacement meter and cut-in technology, which is applied in the field of foundation soil survey, foundation structure test, construction, etc., can solve problems such as damage to soft soil areas, self-heaviness, and influence of measurement results, and achieve simple structure of the anchor head and easy installation The effect of light structure and reduced impact

Inactive Publication Date: 2014-06-11
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are several types of fixing devices for drilling multi-point displacement measurement points, such as grouting type, shrapnel type, hydraulic support type and inverted wedge type, etc., but due to the large disturbance to the soil mass of the borehole wall when the anchoring force is applied , destroying the original soft soil structure in the soft soil area, so it is often difficult to measure the ideal formation settlement data
In addition, due to the large self-weight of the anchor head of the existing multi-point displacement gauge, the measurement results are often affected by the self-weight in soft soil areas

Method used

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  • Blade-cut-in type soft soil multi-point displacement meter anchor head
  • Blade-cut-in type soft soil multi-point displacement meter anchor head
  • Blade-cut-in type soft soil multi-point displacement meter anchor head

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Experimental program
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Embodiment

[0030] A multi-point displacement gauge anchor head for knife-cutting soft soil, the structure is as follows figure 1 and figure 2 As shown, the anchor head includes a central axis rod 1, an outer rod 2, an upper frame 31, a lower frame 32, a spring tube 5, a force transmission rod and an anchoring knife 9, and the upper part of the central axis rod 1 is provided with an outer rod 2 , the bottom of the outer rod 2 is connected to the upper frame 31, the bottom of the central shaft 1 is connected to the rotating shaft 4, the lower frame 32 is arranged on the rotating shaft 4, the spring tube 5 is sleeved on the bottom of the central shaft 1, and the spring tube 5 The upper end is connected with the upper frame 31, the lower end of the spring tube 5 is connected with the lower frame 32, the force transmission rod includes the first rigid rod 6, the second rigid rod 7 and the elastic rod 8, and one end of the first rigid rod 6 is connected with the upper frame 31. Hinged, the o...

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Abstract

The invention relates to a blade-cut-in type soft soil multi-point displacement meter anchor head comprising a middle shaft rod, an external rod, an upper frame, a lower frame, a spring tube, a transmission rod and an anchoring cutter. The external rod sleeves the upper portion of the middle shaft rod, the bottom of the external rod is connected to the upper frame, the bottom of the middle shaft rod is connected to the lower frame, the spring tube sleeves the lower portion of the middle shaft rod, the upper end of the spring tube is connected with the upper frame, the lower end of the spring tube is connected with the lower frame, one side of the transmission rod is hinged to the upper and lower frames, the other side of the transmission rod is hinged to the anchoring cutter, the middle shaft rod is provided with a segment of spiral structure, and the inner side of the upper frame is provided with a nut structure; when the middle shaft rod rotates, the spring tube stretches to drive the lower frame to bounce upwardly so as to drive the transmission rod to extend out the anchoring cutter into the tested-segment drilling hole wall soil. Compared with the prior art, the blade-cut-in type soft soil multi-point displacement meter anchor head has the advantages that the blade-cut-in type soft soil multi-point displacement meter anchor head can be used for measuring different ground settlement in a soft soil area and providing ground settlement monitoring data for foundation pit engineering and underground engineering.

Description

technical field [0001] The invention belongs to the technical field of geotechnical engineering detection, and in particular relates to an anchor head of a knife-cut soft soil multi-point displacement meter. Background technique [0002] In order to grasp the foundation settlement in the survey stage and construction excavation process of foundation pit engineering and underground engineering in soft soil areas, it is necessary to set up multi-point displacement meters in the borehole for monitoring. At present, there are several types of fixing devices for drilling multi-point displacement measurement points, such as grouting type, shrapnel type, hydraulic support type and inverted wedge type, etc., but due to the large disturbance to the soil mass of the borehole wall when the anchoring force is applied , destroying the original weak soil structure in the soft soil area, so it is often difficult to measure the ideal formation settlement data. In addition, due to the large...

Claims

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Application Information

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IPC IPC(8): E02D1/00E02D33/00
Inventor 王建秀刘笑天姜韵骅郭清锋邹宝平胡健
Owner TONGJI UNIV
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