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An anchoring device of a datum mark in a boring

An anchoring device and reference point technology, which is applied in the field of reference point anchoring devices in boreholes, can solve the problems of complex setting of reference points for inclinometers, and achieve the effects of good stability, low cost, and easy device installation

Inactive Publication Date: 2011-09-14
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Among them, the setting of the reference point of the inclinometer is relatively complicated, and sometimes it needs to be poured together with the pile body; the setting of the reference point of the ground deformation measurement such as the total station is simple, but it can only meet the surface displacement or deformation monitoring of rock and soil

Method used

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  • An anchoring device of a datum mark in a boring
  • An anchoring device of a datum mark in a boring
  • An anchoring device of a datum mark in a boring

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Embodiment Construction

[0016] Such as figure 1 Shown is a schematic diagram of the anchoring device for the reference point in the borehole, including guide ball 1, chute 2, PVC sleeve 3, support arm 4, inner tube 5, stopper 6, pin 7, traction wire 8, screw 9, It is characterized in that: the guide ball 1 is connected with the inner pipe 5, the PVC sleeve 3 is set outside the inner pipe 5, one end of the support arm 4 is fixed on the inner pipe 5 through a hoop, and the other end is fixed on the PVC sleeve 3 through a hoop . One end of the inner pipe 5 near the guide ball has a chute 2, and the PVC sleeve 3 can slide at the chute 2 of the inner pipe. Such as Figure 5 As shown, the baffle 6 is located on the PVC casing 3, and the baffle 6 is slotted along the axial direction of the PVC casing 3, and two screws 9 are radially fixed on the PVC casing, which can slide longitudinally, and the baffle 6 One end of the guide ball 1 is tied with a traction wire 8. The pulling steel wire 8 passes through...

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Abstract

The invention discloses an anchoring device of a datum mark in a boring. The anchoring device of a datum mark in a boring, which belongs to the testing technical field of geotechnical engineering, is used for detection of displacement or deformation of rock-soil body such as ground pit, side slope and the like. The anchoring device includes a guiding ball 1, a chute 2, a PVC (Polyvinyl chloride) sleeve 3, a support arm 4, an inner tube 5, a separation blade 6, a pin 7, a traction steel wire 8, and a screw 9. The anchoring device has advantages of convenient installation, good stability in anchoring datum marks, easy acquisition of manufacture material, and low cost.

Description

technical field [0001] The invention discloses a reference point anchoring device in a borehole, which belongs to the technical field of geotechnical engineering testing and is used for displacement or deformation monitoring of rock and soil bodies such as foundation pits or side slopes. Background technique [0002] In geotechnical engineering testing technology, displacement or deformation monitoring of foundation pits, slopes and other projects is a common engineering project. At present, the commonly used technology is the inclinometer test, which uses a certain point deep in the formation as a reference point to calculate the deformation of each part of the inclinometer pipe. Or, use a total station for ground deformation measurement, and use a point far away from the engineering rock mass as a reference point for long-term observation. Among them, the setting of the reference point of the inclinometer is relatively complicated, and sometimes it needs to be poured toge...

Claims

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Application Information

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IPC IPC(8): G01B21/02G01B21/32
Inventor 姚爱军杜修力赵强
Owner BEIJING UNIV OF TECH
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