CN204940239U - There is the cone penetration test drilling rod of the section of leaking - Google Patents
There is the cone penetration test drilling rod of the section of leaking Download PDFInfo
- Publication number
- CN204940239U CN204940239U CN201520672834.7U CN201520672834U CN204940239U CN 204940239 U CN204940239 U CN 204940239U CN 201520672834 U CN201520672834 U CN 201520672834U CN 204940239 U CN204940239 U CN 204940239U
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- section
- leaking
- feeler lever
- drilling rod
- reaming
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Abstract
The utility model relates to a kind of drilling rod, and a kind of cone penetration test drilling rod with the section of leaking, belongs to drill pipe art specifically.It comprises conehead, friction cylinder, feeler lever, reaming section and the section of leaking, and conehead upper end connects friction cylinder, and friction cylinder upper end connects feeler lever; Feeler lever is provided with reaming section and the section of leaking, and the section of leaking along the circumferential direction is provided with several leaking holes, and the leaking hole in the section of leaking is communicated with feeler lever internal watercourses.The utility model structure is simple, compact, reasonable, can be reduced the frictional force of feeler lever and lower brill surrounding soil by the section of leaking, and accelerates rate of penetration, shortens the working time; Rod boring is got out be subject to the stop of the soil body less by reaming section, Comparision is easy.
Description
Technical field
The utility model relates to a kind of drilling rod, and a kind of cone penetration test drilling rod with the section of leaking and reaming section, belongs to drill pipe art specifically.
Background technology
Cone penetration test is at the uniform velocity pressed in soil by given pace by circular cone probe, measures its Cone resistance (q
c), side friction power (f
s) and frictional ratio (F
r), utilize the q of static sounding achievement
c, f
s, F
rthree parameters divide great soil group, are applicable to clay layer, silty clay and layer of sand.
The double-purpose static sounding technology of extensive use in current engineering is the friction cylinder 2 that conehead 1 connects double-purpose probe, then connects feeler lever 3 (see Fig. 1).The side friction power of clay and layer of sand is all comparatively large, produces larger frictional force when this will make feeler lever continue to creep into.In order to reduce the frictional force between feeler lever and the lower brill soil body, existing consideration connects " Water outlet device " and reaming parts between feeler lever, utilizes the lubricant effect of reaming effect and water, to reach the effect improving rate of penetration.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned weak point, thus provides a kind of cone penetration test drilling rod with the section of leaking, and can reduce the frictional force of feeler lever and lower brill surrounding soil, accelerates rate of penetration, shortens the working time.
According to the technical scheme that the utility model provides, the cone penetration test drilling rod with the section of leaking comprises conehead, friction cylinder, feeler lever, reaming section and the section of leaking, it is characterized in that: conehead upper end connects friction cylinder, friction cylinder upper end connects feeler lever, and feeler lever upper end connects probing rod joint; Feeler lever is provided with reaming section and the section of leaking, and the section of leaking along the circumferential direction is provided with several leaking holes, and the leaking hole in the section of leaking is communicated with feeler lever internal watercourses.
Further, the diameter of reaming section is greater than the diameter of drilling rod.
Compared with the prior art the utility model has the following advantages:
The utility model structure is simple, compact, reasonable, can be reduced the frictional force of feeler lever and lower brill surrounding soil by the section of leaking, and accelerates rate of penetration, shortens the working time; Rod boring is got out be subject to the stop of the soil body less by reaming section, Comparision is easy.
Accompanying drawing explanation
Fig. 1 is cone penetration test drilling rod figure in prior art.
Fig. 2 is the utility model front view.
Fig. 3 is the section of leaking front view.
Description of reference numerals: 1-conehead, 2-friction cylinder, 3-feeler lever, 4-probing rod joint, 5-reaming section, the 6-section of leaking, 7-leaking hole.
Detailed description of the invention
Embodiment in is by reference to the accompanying drawings further described by the utility model below:
As shown in figures 2-3, the utility model mainly comprises conehead 1, friction cylinder 2, feeler lever 3, reaming section 5 and the section of leaking 6, and conehead 1 upper end connects friction cylinder 2, and friction cylinder 2 upper end connects feeler lever 3, and feeler lever 3 upper end connects probing rod joint 4.
Feeler lever 8 is provided with reaming section 5, and the diameter of reaming section 5 is greater than the diameter of drilling rod 3, and drilling rod 3 is crept into get out the stop being subject to the soil body less, Comparision is easy.
Feeler lever 8 is provided with the section of leaking 6, the section of leaking 6 is along the circumferential direction provided with several leaking holes 7.Leaking hole 7 in the section of leaking 6 is communicated with feeler lever 8 internal watercourses, in use, water is injected to feeler lever 8 internal watercourses, water flows to the section of leaking 6 along feeler lever 8, then spill from the leaking hole 7 section of leaking 6, emollescence is played to the soil body of drilling rod periphery, reduces frictional force, thus reach the object improving rate of penetration.
Operating principle of the present utility model is: be responsible for water filling in feeler lever by a workman during construction, when water flows to along feeler lever the section of leaking, because the section of leaking is provided with the cause of leaking hole, water can flow out from leaking hole, flow out along the gap between drilling rod and Water outlet device, in the process continuing to creep into, between the surrounding soil of feeler lever and lower brill, just have water as sliding agent, reduce frictional force, thus reach the object improving rate of penetration.Meanwhile, reaming section also act as the effect of reaming, because its diameter is more bigger than feeler lever, so the feeler lever be located thereon more easily creeps into.
Claims (2)
1. one kind has the cone penetration test drilling rod of the section of leaking, comprise conehead (1), friction cylinder (2), feeler lever (3), reaming section (5) and the section of leaking (6), it is characterized in that: conehead (1) upper end connects friction cylinder (2), friction cylinder (2) upper end connects feeler lever (3), and feeler lever (3) upper end connects probing rod joint (4); Feeler lever (8) is provided with reaming section (5) and the section of leaking (6), the section of leaking (6) is along the circumferential direction provided with several leaking holes (7), and the leaking hole (7) in the section of leaking (6) is communicated with feeler lever (8) internal watercourses.
2. there is the cone penetration test drilling rod of the section of leaking as claimed in claim 1, it is characterized in that: the diameter of described reaming section (5) is greater than the diameter of drilling rod (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520672834.7U CN204940239U (en) | 2015-09-01 | 2015-09-01 | There is the cone penetration test drilling rod of the section of leaking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520672834.7U CN204940239U (en) | 2015-09-01 | 2015-09-01 | There is the cone penetration test drilling rod of the section of leaking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204940239U true CN204940239U (en) | 2016-01-06 |
Family
ID=55007681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520672834.7U Active CN204940239U (en) | 2015-09-01 | 2015-09-01 | There is the cone penetration test drilling rod of the section of leaking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204940239U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108225806A (en) * | 2017-12-22 | 2018-06-29 | 中地装重庆探矿机械有限公司 | A kind of drilling machine performance test apparatus |
| CN114942314A (en) * | 2022-05-20 | 2022-08-26 | 中水北方勘测设计研究有限责任公司 | A reaming lubricating component for static cone penetration test |
-
2015
- 2015-09-01 CN CN201520672834.7U patent/CN204940239U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108225806A (en) * | 2017-12-22 | 2018-06-29 | 中地装重庆探矿机械有限公司 | A kind of drilling machine performance test apparatus |
| CN114942314A (en) * | 2022-05-20 | 2022-08-26 | 中水北方勘测设计研究有限责任公司 | A reaming lubricating component for static cone penetration test |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |