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Method for measuring hole depth and mud weight in portable bored pile

A technology of mud specific gravity and hole depth, which can be used in basic structure testing, construction, infrastructure engineering, etc.

Pending Publication Date: 2018-09-14
CHINA CONSTR FIFTH ENG DIV CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a portable method for detecting the hole depth and mud specific gravity of bored piles, the purpose of which is to solve the problem of inaccurate and time-consuming manhole measurement for hole depth measurement

Method used

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  • Method for measuring hole depth and mud weight in portable bored pile
  • Method for measuring hole depth and mud weight in portable bored pile
  • Method for measuring hole depth and mud weight in portable bored pile

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Embodiment Construction

[0028] In order to illustrate the technical solution of the present invention more clearly, the accompanying drawings that need to be used in the description will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. As far as people are concerned, other embodiments can also be obtained according to these drawings on the premise of not paying creative work.

[0029] see figure 1 and figure 2 :

[0030] figure 2 A, B, C, D, E in the figure are the process that the measuring hammer gradually reaches the bottom of the drilling hole after entering the drilling hole.

[0031] The example of the present invention is a portable bored pile hole depth and mud specific gravity detection instrument, comprising a measuring hammer 1 of known mass and volume, a measuring rope 2, a hoist 5 providing power, a pulley 3 with a pressure sensor and a belt Angle scale and pointer pulley4.

[0032] T...

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Abstract

The invention provides a method for measuring the hole depth and mud weight in a portable bored pile. The method is characterized in that a measuring rope is wound on a hoister, and the measuring ropeextending out from the hoister passes around a pulley with an angle dial and a pointer, and a pulley with a pressure sensor in sequence; a plumb bob is hung at the end of the measuring rope; and thepulley with the angle dial and the pointer is provided with a revolution and pointer angle sensor, and the revolution and pointer angle sensor and the pressure sensor are both connected to a computer.According to the method, the hole depths can be measured in real time accurately, and meanwhile the mud weights at different hole depths can be measured and shown in real time; reliable guiding datais provided for construction of the bored pile, and the purpose of real-time control in the construction process can be achieved; and time and labor are saved.

Description

technical field [0001] The invention relates to the field of automatic measurement, in particular to a portable detection instrument and method for the hole depth of bored cast-in-place piles and the specific gravity of mud. Background technique [0002] Bored piles are being widely used as a deep foundation. During the construction process, it is necessary to detect the actual drilling depth and the specific gravity of the pile hole mud to achieve the purpose of real-time control. Most of the existing hole depth measurement is manual measurement with measuring rope, which is mainly based on experience, with large subjective factors and inaccurate measurement results. As for the mud specific gravity at different hole depths, there is no accurate measurement method at present. The invention is capable of accurately measuring the hole depth and the mud specific gravity of different hole depths at the same time, and has multiple advantages such as quickness, convenience and ac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D33/00
CPCE02D33/00
Inventor 都娄凯游杰勇陈全齐王维赵娣潘胜奎
Owner CHINA CONSTR FIFTH ENG DIV CORP LTD
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