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A detection device and detection method for sediment at the bottom of a hole

A detection device and sediment technology, which is applied in the direction of mechanical thickness measurement, etc., can solve the problems that the bottom of the hole is not smooth, the measurement is not accurate enough, and the measurement of sediment thickness is not objective enough, so as to improve the detection accuracy, reduce the measurement error and measure accurately. high degree of effect

Active Publication Date: 2020-11-24
浙江同洲项目管理有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned prior art scheme has the following defects: the one-way plate of the invention acts as the starting point for measurement, and stops moving when the one-way plate touches the highest point of the sediment; the top surface of the sediment at the bottom of the hole is generally not smooth, and there may be The height of the protrusions, which leads to the measurement of the thickness of the sediment is not objective enough, the measurement personnel can not understand the real sediment situation at the bottom of the hole, and there is a defect that the measurement is not accurate enough

Method used

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  • A detection device and detection method for sediment at the bottom of a hole
  • A detection device and detection method for sediment at the bottom of a hole
  • A detection device and detection method for sediment at the bottom of a hole

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Embodiment 1

[0045] refer to figure 1 and figure 2 , is a detection device for bottom sediment disclosed by the present invention, which includes a pull rope 10 and a device body arranged at one end of the pull rope 10 . The device body includes a top plate 1 and a film bag 2 fixed on the lower surface of the top plate 1. The end of the drawstring 10 close to the top plate 1 is branched into three sub-strings 101. The stay rope 10 is connected to the top plate 1 through the sub-strings 101, and the sub-strings 101 are respectively fixed. It is located near the outer edge of the top plate 1 in the circumferential direction. When the device body is located below the stay rope 10 and is in a naturally drooping state, the stay rope 10 is perpendicular to the surface of the top board 1, and the pulling force of the multiple sub-ropes 101 acts on the edge of the top board 1, so the top board 1 is not easy to shake. The stay cord 10 is connected with a tension gauge 102 away from the position ...

Embodiment 2

[0055] A kind of detection method, has used the detection device of the sediment at the bottom of the hole of embodiment one, with reference to image 3 , including the following steps:

[0056] Step 1: heating the film bag 2 to make the agar 21 into a liquid state, and soaking the paint on the bristles of the brush head 6 .

[0057] Step 2: use lifting equipment to pull the end of the stay rope 10 away from the top plate 1, and lift the device body into the hole to be detected.

[0058] Step 3: Observe the reading of the tension gauge 102. When the reading of the tension gauge 102 decreases, it means that the device body has contacted the sediment at the bottom of the hole. At this time, turn on the power of the vibrator 5 to make the vibrator 5 vibrate.

[0059] Step 4: Continue to lower the device body slowly, and make the tension meter 102 maintain a reading exceeding the total gravity of the pull rope 10 and the top plate 1; the detection rod 4 penetrates into the sedime...

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Abstract

The invention discloses a detection device and detection method for sediment at the bottom of a hole, and relates to the technical field of building detection. The key points of the technical scheme is as follows: the detection device comprises a pull rope and a device body arranged at one end of the pull rope, the pull rope is connected with a tension meter, the device body comprises a top plate and a film bag, agar is filled in the film bag, a sliding sleeve is arranged on the top plate in a sliding manner, the bottom surface of the film bag is provided with a through hole II for the sliding sleeve to penetrate through, and the top surface of the film bag is positioned at the concave of a through hole I; and a detection rod is slidably arranged in the sliding sleeve, the top end of the detection rod is higher than the top plate and a weight block is fixed on the top end of the detection rod, the size of the weight block cannot enter the sliding sleeve, the lower end of the detection rod is tapered, and a brush head is arranged on the top plate, and bristles of the brush head are pressed against the outer wall of the detection rod. By providing a film bag and agar, the personnel can objectively and accurately judge the depth and the sediment amount of the sediment at the bottom of the hole according to the height state of the bottom end of the detection rod and in combination with the shape of the bottom of the film bag, and the detection device and detection method for sediment at the bottom of the hole has the advantage of high measurement accuracy.

Description

technical field [0001] The invention relates to the technical field of building detection, in particular to a detection device and a detection method for sediment at the bottom of a hole. Background technique [0002] The construction process of bored piles is to form holes in the soil foundation first, and then lower the steel cage for concrete pouring. During the process of forming holes, sediment at the bottom of the holes is inevitable. Hole bottom sediment refers to the sediment left by sedimentation or hole collapse during drilling and hole cleaning. The existence of sediment at the bottom of the hole will affect the bearing capacity of the solidified concrete pile. Therefore, it is necessary to measure the depth of the sediment at the bottom of the hole to determine whether it is within the appropriate range. If it exceeds the range, the sediment needs to be cleaned. [0003] The existing Chinese invention patent application with the publication number CN101482385A d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B5/06
CPCG01B5/06
Inventor 薛彬王飞萍李敏塔
Owner 浙江同洲项目管理有限公司
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