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Tools and method for measuring thickness of drill pile hole bottom grain stillage

A technology of slag thickness and hole bottom, applied in mechanical thickness measurement, mechanical depth measurement and other directions, which can solve the problems of inability to make objective measurement judgment and misjudgment.

Inactive Publication Date: 2008-12-17
黄建龙
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the existing tools for measuring the thickness of sediment at the bottom of bored pile holes can only be used for subjective judgments based on the engineer's feel and experience, but cannot be used for objective measurement and judgment, and there is a great possibility of misjudgment

Method used

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  • Tools and method for measuring thickness of drill pile hole bottom grain stillage
  • Tools and method for measuring thickness of drill pile hole bottom grain stillage

Examples

Experimental program
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Effect test

Embodiment 1

[0011] Such as figure 1 As shown, the tool for measuring the thickness of sediment at the bottom of the bored pile hole includes a measuring rope. The measuring rope is composed of an outer layer 1 and a core layer 2. The outer layer 1 is loosely sleeved around the core layer 2, and is tied at the bottom end of the measuring rope. There is a metal measuring hammer 3, which is tied to the lower end of the measuring rope core layer 2; the lower end of the measuring rope outer layer 1 is connected with a vertical sleeve 4, and the lower end of the vertical sleeve 4 is provided with a horizontal film 5, The directional sleeve 4 and the horizontal bottom plate 5 are fixedly connected as a whole; the metal measuring hammer 3 is loosely sleeved in the vertical sleeve 4; the upper end of the core layer 2 is exposed outside the outer layer 1; the upper end of the measuring rope core layer 2 is provided with a scale .

Embodiment 2

[0013] Such as figure 1 , figure 2 As shown, the method for measuring the thickness of sediment at the bottom of a bored pile hole adopts the measuring tool of embodiment 1, and includes the following steps: a. Before placing the metal measuring hammer 3 to the bottom of the pile hole, adjust the metal measuring hammer 3 and the vertical sleeve 4 Make the bottom end of the metal test hammer 3 and the horizontal film 5 flush, and record the length X of the upper end of the test rope core layer 2 exposed outside the outer cover layer 1; b. Hold the upper end of the test rope 1 and face the bottom of the pile hole Put down the metal stylus 3 until the bottom of the metal stylus 3 and the horizontal plate contact the bottom sediment 6 of the hole; c. Continue to make the metal stylus penetrate the sediment layer 6, and the lower end of the metal stylus touches the bearing layer (rock layer) 7 , And the horizontal film 5 is blocked on the sediment layer 6, so that the core layer of th...

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Abstract

A tool for measuring the thickness of sinking slag on hole bottom of a bored pile comprises a measurement rope, and a metal measurement hammer fastened to the bottommost end of the measurement rope, wherein the measurement rope is composed of a sheath layer and a core layer; the sheath layer is sheathed on the outer side of the core layer in a loose fit manner; the metal hammer is fastened to the lower end of the core layer; a vertical sleeve is connected with the lower end of the sheath layer; a horizontal bottom sheet is arranged at the lower end of the vertical sleeve and is fixedly connected with the vertical sleeve as a whole; the metal measurement hammer is sheathed in the vertical sleeve in a loose fit manner; the upper end of the core layer is exposed out of the sheath layer; and length scales are formed the upper end of the core layer. The tool can objectively measure the thickness of sinking slag on the hole bottom of the bored pile without the need of the subjective determination of engineers based on experience and hand feeling. The invention also provides a method for measuring the thickness of sinking slag on the hole bottom of the bored pile.

Description

Technical field [0001] The invention belongs to a building construction measuring equipment and a measuring method, in particular to a measuring tool and a measuring method for the thickness of sediment at the bottom of a bored pile hole. Background technique [0002] The sediment at the bottom of the bored pile is a loose structure, and the presence of sediment or virtual soil at the bottom of the bore is an important factor that affects the bearing capacity of the bored pile and the consistency of the foundation. When thick sediment remains at the bottom of the hole, the rigidity of the bottom of the pile will be reduced and the allowable bearing capacity will decrease. Therefore, the quality of hole cleaning and measuring the thickness of the sediment at the bottom of the hole are an indispensable part of the bored pile construction. The construction specification has a clear regulation on the thickness of the sediment h after the bored pile is cleaned, that is, for the column...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B5/06G01B5/18
Inventor 黄建龙
Owner 黄建龙
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