CN201053859Y - Bored pile hole bottom slime thickness measuring tool - Google Patents
Bored pile hole bottom slime thickness measuring tool Download PDFInfo
- Publication number
- CN201053859Y CN201053859Y CNU2007201207993U CN200720120799U CN201053859Y CN 201053859 Y CN201053859 Y CN 201053859Y CN U2007201207993 U CNU2007201207993 U CN U2007201207993U CN 200720120799 U CN200720120799 U CN 200720120799U CN 201053859 Y CN201053859 Y CN 201053859Y
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- Prior art keywords
- measuring
- sediment
- metal
- plummet
- rope
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- Expired - Fee Related
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
A thickness gauge used for measuring the thickness of the sediment at the bottom of drilled-pile holes comprises a measuring rope. A metal measuring hammer is tied to the most bottom end of the measuring rope; and another metal measuring hammer is tied to the position 1m to 2m above the most bottom end of the measuring rope. The weight difference between the two metal measuring hammers is 1 to 4 kilogram(s), wherein, the metal measuring hammer tied to the most bottom end of the measuring rope is about 1.8-2.5 kilograms in weight, and the metal measuring hammer tied to the position 1m to 2m above the most bottom end of the measuring rope is about 0.8-1.2 kilograms in weight. Due to the utility model, an engineer can use two measuring hammers of different weights to measure the sediment by falling down one measuring rope, thereby avoiding the inaccurate judgment of the sediment thickness made by the engineer for being impacted by a measuring hammer which can be too heavy or too light, so that a long-term difficult can be solved.
Description
Technical field
The utility model belongs to a kind of building construction measurement equipment, is specifically related to a kind of tools for measuring thickness of drill pile hole bottom grain stillage.
Background technology
Sediment belongs to loose structure at the bottom of the hole of drilled pile, and the existence of sediment or loosened soil is a key factor that influences the drilled pile bearing capacity at the bottom of the hole.When at the bottom of the hole during residual thicker sediment, a bottom rigidity is reduced, allowable bearing descends.So sediment thickness is an indispensable ring in the drilled pile construction at the bottom of clear hole quality, the measured hole, the sediment thickness h of job specifications after to the clear hole of drilled pile has clearly regulation, promptly to end-bearing pile: h＜10cm, to friction pile: h＜30cm.The existing instrument of measuring measuring thickness of drill pile hole bottom grain stillage generally is to adopt 50 meters lining ropes, the lining rope lower end has bound the metal plummet, the metal plummet generally adopts the bar dowel of about 2 centimetres of 2-4 root diameters to close up and is welded into one, and metal plummet integral body is short strip shape.Lower, raise lining rope repeatedly by Utility Engineers's hand of measuring sediment during measurement, the metal plummet is constantly thrust repeatedly extract the sediment layer then, feel the existence of sediment layer thus, judge the sediment layer thickness with feel and experience.But because under the various geological conditions, particle diameter, viscosity, the component of sediment vary at the bottom of each pile hole, sediment is also different to the resistance of bar dowel plummet at the bottom of each pile hole, so existing tools for measuring thickness of drill pile hole bottom grain stillage, can produce following problem during use: if the plummet of its lower end is too light, then might in some hole, be difficult to thrust fully the sediment layer, otherwise, if the plummet of its lower end is too heavy, then might in some hole, make the measurement slip-stick artist be difficult to feel the resistance of sediment layer owing to thrusting the sediment layer too easily.Above-mentioned two kinds of situations all might influence the correct judgement of slip-stick artist to sediment thickness.
Summary of the invention
Fundamental purpose of the present utility model is to provide a kind of tools for measuring thickness of drill pile hole bottom grain stillage at the above-mentioned deficiency of prior art, and it can avoid the too heavy or too light accurate judgement to sediment thickness that influences the slip-stick artist owing to plummet.
For realizing above purpose, tools for measuring thickness of drill pile hole bottom grain stillage of the present utility model comprises lining rope, bound a metal plummet at the lining rope lowermost end, its principal feature is, 1-2 rice has also bound another metal plummet above distance lining rope lowermost end, and the weight of two plummets differs the 1-1.4 kilogram.
Be preferably, the metal plummet that the lining rope lowermost end binds (following plummet) weight is about the 1.8-2.5 kilogram, and the weight of the metal plummet at 1-2 rice (going up plummet) is about the 0.8-1.2 kilogram above distance lining rope lowermost end.
The utlity model has following advantage and effect:
When 1, tools for measuring thickness of drill pile hole bottom grain stillage of the present utility model uses, can put down lining rope, first with descending plummet (heavier plummet) feeler inspection, sensation sediment layer repeatedly, and then continue to loosen lining rope, allow lining rope fall again, supreme plummet (lighter plummet) lands, and continues to use lighter plummet feeler inspection, sensation sediment layer repeatedly.Like this, for same stake hole, the slip-stick artist just can only put down a lining rope and use two kinds of different plummets of weight to measure sediment, avoid plummet or too important too light shortcoming in the past thus, increase the order of accuarcy of judging the sediment layer thickness, solved a great problem that perplexs people for a long time.
Description of drawings
Fig. 1 is the structural representation of a kind of specific embodiment of the utility model.
Embodiment
Embodiment one
As shown in Figure 1, the sediment thickness survey instrument comprises 50 meters long lining ropes 1 at the bottom of the stake hole, hole of the present utility model, 1.8 kilograms of metal plummets 2 have been bound at the lining rope lowermost end, the weight that 1.0 meters have also bound another 0.8 kilogram of metal plummet 3, two plummet above distance lining rope lowermost end differs 1 kilogram.
Embodiment two
The sediment thickness survey instrument comprises 50 meters long lining ropes at the bottom of the stake hole, hole of the present utility model, 2.5 kilograms of metal plummets have been bound at the lining rope lowermost end, 2.0 meters have also bound another 1.2 kilograms of metal plummets above distance lining rope lowermost end, and the weight of two plummets differs 1.3 kilograms.
Claims (2)
1. tools for measuring thickness of drill pile hole bottom grain stillage, comprise lining rope, bound a metal plummet at the lining rope lowermost end, it is characterized in that: 1-2 rice has also bound another metal plummet above distance lining rope lowermost end, and the weight of two plummets differs the 1-1.4 kilogram.
2. tools for measuring thickness of drill pile hole bottom grain stillage according to claim 1, it is characterized in that: the metal plummet weight that the lining rope lowermost end binds is about the 1.8-2.5 kilogram, and the weight of the metal plummet at 1-2 rice is about the 0.8-1.2 kilogram above distance lining rope lowermost end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201207993U CN201053859Y (en) | 2007-06-15 | 2007-06-15 | Bored pile hole bottom slime thickness measuring tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201207993U CN201053859Y (en) | 2007-06-15 | 2007-06-15 | Bored pile hole bottom slime thickness measuring tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201053859Y true CN201053859Y (en) | 2008-04-30 |
Family
ID=39393523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201207993U Expired - Fee Related CN201053859Y (en) | 2007-06-15 | 2007-06-15 | Bored pile hole bottom slime thickness measuring tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201053859Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103195066A (en) * | 2013-04-23 | 2013-07-10 | 中建八局第二建设有限公司 | Excessive concrete pouring detector for underwater cast-in-place piles and method for using excessive concrete pouring detector |
-
2007
- 2007-06-15 CN CNU2007201207993U patent/CN201053859Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103195066A (en) * | 2013-04-23 | 2013-07-10 | 中建八局第二建设有限公司 | Excessive concrete pouring detector for underwater cast-in-place piles and method for using excessive concrete pouring detector |
| CN103195066B (en) * | 2013-04-23 | 2014-12-10 | 中建八局第二建设有限公司 | Excessive concrete pouring detector for underwater cast-in-place piles and method for using excessive concrete pouring detector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080430 |