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Simple cast-in-place pile hole depth measuring device and implementation method

A technology of depth measurement and cast-in-place pile, which is applied in the direction of mechanical depth measurement, etc., can solve the problems of reducing the working efficiency of drilling rigs, mechanical injury accidents, measurement accuracy deviations, etc., and achieve the effects of ensuring measurement accuracy and construction quality, accurate measurement, and avoiding damage

Active Publication Date: 2020-04-17
CHINA MCC17 GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Use the method of measuring the length of the drill pipe to check the depth of the hole. If the measurement is not stopped, it will easily cause mechanical injury accidents. If the measurement is stopped, the working efficiency of the drilling rig will be reduced. Using the measurement rope requires personnel to stand in the hole to measure it. During the measurement process, it will be in a non-vertical state downwards, which will affect its measurement accuracy and cause deviations, reducing its construction quality

Method used

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  • Simple cast-in-place pile hole depth measuring device and implementation method
  • Simple cast-in-place pile hole depth measuring device and implementation method
  • Simple cast-in-place pile hole depth measuring device and implementation method

Examples

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Effect test

Embodiment 1

[0031] Such as Figure 1 to Figure 4 As shown, a simple hole depth measurement device for cast-in-place piles includes a positioning system and a measuring system. The positioning system is set inside the hole of the cast-in-place pile. The measuring system includes a fixed frame 1, a rotating shaft 2, a winding wheel 3, and a measuring line with a scale. 4, the wire hammer 5, the fixed frame 1 is fixedly connected on the positioning system and the fixed frame 1 is provided with a guide frame 6 for measuring the fixed point of the line 4 to move up and down, and the reel 3 is connected to the fixed frame 1 by rotating the rotating shaft 2. There is a rocker on the reel 3, and a weighing unit on the reel 3. The measuring wire 4 is wound on the reel 3 and enters the guide frame 6 to connect with the hammer 5. The hammer 5 is judged by the weighing unit. Touch the bottom and read the readings on the measuring line 4 to measure the depth of the cast-in-place pile hole. The heavy ...

Embodiment 2

[0040] An implementation method of a simple cast-in-place pile hole depth measuring device, the implementation steps comprising:

[0041] S1. Depth measurement device assembly: install the moving part 12 of the assembled structure, the first fixed seat 7 connected with the second fixed seat 8 through the guide column 15, and install it on the outside of the top of the drilling rig head, and install the measuring system on the second On a fixed seat 7 and arranged alternately with the wedge-shaped push block 14;

[0042] S2. The first fixed seat 7, the second fixed seat 8 and the moving part 12 are arranged coaxially with the drilling rig by using the connecting steel rope and the fixed pile, and the horizontal position is limited;

[0043] S3. With the drilling of the drilling rig, the moving part 12, the slider and the wedge-shaped push block 14 move down as a whole, and the positioning rods 11 in the first fixed seat 7 and the second fixed seat 8 are extended to the wall of ...

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Abstract

The invention discloses a simple cast-in-place pile hole depth measuring device and an implementation method, which belong to a cast-in-place pile hole construction process. The device comprises a positioning system and a measuring system. The positioning system is arranged on the inner side of the cast-in-place pile hole; the measuring system comprises a fixing frame, a rotating shaft, a reel, ameasuring line with scales and a plumb bob. The fixing frame is fixedly connected to the positioning system and provided with a guide frame used for enabling the measuring line to move up and down ata fixed point. The reel is rotationally connected to the fixing frame through the rotating shaft, a rocking handle is arranged on the reel, a weight measuring unit is arranged on the reel, the measuring line is wound on the reel and connected with the plumb bob through the guide frame, and the depth of the cast-in-place pile hole is measured by judging whether the plumb bob touches the bottom or not and reading the reading on the measuring line through the weight measuring unit. The plumb bob moves up and down at the same point all the time in the vertical direction, the measurement precisionand the construction quality are effectively guaranteed, accurate measurement can be achieved under the non-stop working condition, and damage to mechanical equipment is effectively avoided.

Description

technical field [0001] The invention belongs to the construction technology of cast-in-situ pile holes, and in particular relates to a simple and simple cast-in-situ pile hole depth measuring device and an implementation method. Background technique [0002] Cast-in-situ piles have the advantages of no vibration, no soil extrusion, low noise, and are suitable for use in densely built urban areas during construction, and are widely used in construction. [0003] During the construction of bored piles, various quality indicators such as hole depth should be inspected and accepted. The hole depth inspection can be inspected by measuring rope or measuring the length of drill pipe. Use the method of measuring the length of the drill pipe to check the depth of the hole. If the measurement is not stopped, it will easily cause mechanical damage. If the measurement is stopped, the working efficiency of the drilling rig will be reduced. Using the measurement rope requires personnel to...

Claims

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Application Information

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IPC IPC(8): G01B5/18
CPCG01B5/18
Inventor 乔小明张文
Owner CHINA MCC17 GRP
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