CN202881941U - Embedded pipe for sampling grouting pile end - Google Patents
Embedded pipe for sampling grouting pile end Download PDFInfo
- Publication number
- CN202881941U CN202881941U CN 201220605112 CN201220605112U CN202881941U CN 202881941 U CN202881941 U CN 202881941U CN 201220605112 CN201220605112 CN 201220605112 CN 201220605112 U CN201220605112 U CN 201220605112U CN 202881941 U CN202881941 U CN 202881941U
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- Prior art keywords
- pipe
- pile
- built
- embedded pipe
- pile end
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Abstract
The utility model relates to an embedded pipe for sampling a grouting pile end and belongs to the field of cast-in-place concrete grouting pile of a fixed structure foundation. The embedded pipe is coaxially sleeved at the inner side of a steel reinforcement cage of a grouting pile; the inner diameter of the embedded pipe is not less than the diameter of a drill bit of a drill core sampler; the top elevation of the embedded pipe is the same with that of the steel reinforcement cage; the bottom elevation of the embedded pipe is higher than the elevation of the grouting pile end; and two ends of the embedded pipe are blocked. Through the embedded pipe, drill core equipment can conveniently penetrate through a pile body to directly drill the pile end and a bearing stratum rock core sample, the concrete quality at the pile end, the sediment situation and the situation of the pile end entering a bearing stratum are evaluated, detection means and data are enriched, and the guarantee of building quality is facilitated.
Description
Technical field
The utility model belongs to the on-site concrete castinplace pile field on fixed buildings basis.
Background technology
The pile foundation engineering accident, it is to cause because there are serious quality problems in pile body that considerable part is arranged.After pile foundation construction is finished, reasonably choose engineering pile and carry out integrity detection, evaluation engineering pile quality is very important.Pile integrity detection method commonly used has drilled drawing-core method, sound wave transmission method, high stress drive detection method, low strain dynamic detection method etc.Wherein low strain process is convenient, flexible, and detection speed is fast, is suitable for the detection of preformed pile, mini-pile.But to the large diameter pile of diameter greater than 800mm, socketed pile particularly, bearing capacity generally designs highlyer, pile quality is one of principal element of control bearing capacity, high and low strain all is difficult to obtain and detects preferably effect, the drilled drawing-core method can be differentiated the continuity of pile concrete intuitively by drilling through core of concrete and pile bottom force holding layer core, becomes important detection method.But when stake when long, get core often can't to connect whole stake long from the stake top, can't understand the situation of an end place pile concrete and bearing stratum.And large diameter pile or socketed pile, the control of its end place pile body concrete quality, sediment thickness, to enter the rock degree of depth etc. all be important step and the weak link of ensuring the quality of products.How effectively obtaining stake end, bearing stratum ground feature and sediment situation, is the problem of being concerned about in the Practical Project.In this process, can pass through the core pressure testing again, understand the intensity of corresponding concrete and rock sample.
The utility model content
Technical problem to be solved in the utility model has provided a kind of built-in pipe device, this built-in pipe is arranged in castinplace pile from the stake top in the pile body of stake end certain distance, because built-in pipe is hollow, can conveniently bore core equipment and pass pile body and directly drill through stake end, bearing stratum ground core, estimate stake end concrete quality, a sediment situation, enter the bearing stratum situation.
For solving the problems of the technologies described above, the technical solution of the utility model is:
A kind of pile end sampling built-in pipe, the built-in pipe coaxial sleeve is attached to the reinforcing cage inboard of castinplace pile, the internal diameter of described built-in pipe is not less than the diameter of core boring sampling machine drill head, described built-in pipe top mark height is high with described reinforcing cage top mark, end absolute altitude is than described castinplace pile end absolute altitude, the two ends of the described built-in pipe of shutoff.
In the utility model, built-in pipe can be steel pipe, and internal diameter is not less than the diameter of core boring sampling facility drill bit, and pipe diameter is greater than 1100mm usually, and thickness of steel pipe satisfies the requirement of strength and stiffness, usually greater than 5mm.The pipe top mark is high high with the stake top mark, the high 3～5m of the comparable stake end absolute altitude of pipe end absolute altitude.The steel pipe coaxial sleeve is attached on the filling pile cage of reinforcement, and behind pouring pile hole, steel pipe and reinforcing cage together sink to putting in place, and then build pile concrete.Shutoff is carried out in top and the bottom of reply built-in pipe.When close measure should prevent that pile body from building, concrete entered plugging occurs in the built-in pipe, and when being convenient to detect simultaneously, drilling machine relatively easily drills shutoff and enters built-in pipe and drill shutoff and carry out the operation of taking a sample of stake end.Can adopt the mode of timber combination seal glue to carry out shutoff.
In the utility model, should guarantee the strict location of embedded steel tube and verticality, sealing.Usually can adopt steel wire that built-in pipe and reinforcing cage colligation is firm every 1 ~ 2m along stake is long, enter in the hole process transferring reinforcing cage and built-in pipe, water filling in built-in pipe, the sealing of observation built-in pipe is guaranteed can not enter in the built-in pipe in the pile concrete casting process.
The concrete size description of the spacing distance of absolute altitude and steel wire lashing only is a kind of signal at the bottom of above-mentioned caliber to built-in pipe, wall thickness, the pipe, can determine that separately conduct is not to restriction of the present utility model according to the actual conditions of engineering.
Because the use of above-mentioned castinplace pile built-in pipe, can conveniently bore core equipment passes pile body and directly drills through stake end, bearing stratum ground core, estimate stake end concrete quality, sediment situation, enter the bearing stratum situation, enriched detection means and data, just be conducive to the assurance of construction quality.
Description of drawings
The utility model will be further described below in conjunction with drawings and Examples and application construction method.
Fig. 1 is longitudinal plan of the present utility model.
Fig. 2 is drawing in side sectional elevation of the present utility model.
Fig. 3 is faces end head plugging connection detail of the present utility model.
Fig. 4 is the utility model built-in pipe and reinforcing cage stationary nodes detail drawing.
The specific embodiment
As depicted in figs. 1 and 2, built-in pipe 1 is a steel pipe, and coaxial sleeve is attached to reinforcing cage 2 inboards of castinplace pile 3, and pipe diameter is not less than the diameter of core boring sampling facility drill bit, and pipe diameter is greater than 1100mm usually.Built-in pipe 1 top mark height is high with castinplace pile 3 top marks, and pipe end absolute altitude is than the high 3～5m of end absolute altitude of castinplace pile 3.
As shown in Figure 3, shutoff is carried out at built-in pipe 1 two ends, form block head 4, prevent that concrete from entering in the pipe, built-in pipe 1 plug at end part adopts the measure of shutoff grouting or other existing close measure of timber combination seal glue, can effectively stop concrete or slurries to enter in the pipe, does not affect creeping into of subsequent samples drilling tool simultaneously.
During pile foundation construction, first built-in pipe 3 coaxial sleeves are attached on the reinforcing cage of described castinplace pile, and fixing, as shown in Figure 4, can adopt steel wire 5 that built-in pipe 1 and reinforcing cage 2 colligations are firm every 1 ~ 2m along stake is long.Fixed form also can adopt welding, and spacing distance also enlarges according to actual conditions or dwindles.
More than scheme that the utility model embodiment is provided introduce in detail, for one of ordinary skill in the art, the thought according to the utility model embodiment all will change in specific embodiments and applications.In sum, this description should not be construed as restriction of the present utility model, and all any changes of making according to the utility model design philosophy are all within protection domain of the present utility model.
Claims (2)
1. pile end sampling built-in pipe, it is characterized in that: built-in pipe (1) coaxial sleeve pastes and is fixed on reinforcing cage (2) inboard of castinplace pile (3), the internal diameter of described built-in pipe (1) is not less than the diameter of core boring sampling machine drill head, described built-in pipe (1) top mark height is high with described reinforcing cage (2) top mark, end absolute altitude is than described castinplace pile (3) end absolute altitude, the two ends of the described built-in pipe of shutoff (1).
2. a kind of pile end sampling built-in pipe according to claim 1 is characterized in that: along described castinplace pile (3) stake length direction, adopt steel wire that described built-in pipe (1) and described reinforcing cage (2) interval colligation are fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220605112 CN202881941U (en) | 2012-11-16 | 2012-11-16 | Embedded pipe for sampling grouting pile end |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220605112 CN202881941U (en) | 2012-11-16 | 2012-11-16 | Embedded pipe for sampling grouting pile end |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202881941U true CN202881941U (en) | 2013-04-17 |
Family
ID=48073382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220605112 Expired - Lifetime CN202881941U (en) | 2012-11-16 | 2012-11-16 | Embedded pipe for sampling grouting pile end |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202881941U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106223375A (en) * | 2016-09-20 | 2016-12-14 | 广州聚散流沙科技有限公司 | Pre-buried type pile end groundwork detecting system |
| CN110258666A (en) * | 2019-06-26 | 2019-09-20 | 陕西长地建设工程质量检测有限公司 | Bored concrete pile pile bottom sediment and pile end groundwork detection device and method |
| CN113931239A (en) * | 2021-10-29 | 2022-01-14 | 山东省交通规划设计院集团有限公司 | Device and method for detecting quality of pile body of bridge squeezing and expanding supporting disc pile |
-
2012
- 2012-11-16 CN CN 201220605112 patent/CN202881941U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106223375A (en) * | 2016-09-20 | 2016-12-14 | 广州聚散流沙科技有限公司 | Pre-buried type pile end groundwork detecting system |
| CN110258666A (en) * | 2019-06-26 | 2019-09-20 | 陕西长地建设工程质量检测有限公司 | Bored concrete pile pile bottom sediment and pile end groundwork detection device and method |
| CN113931239A (en) * | 2021-10-29 | 2022-01-14 | 山东省交通规划设计院集团有限公司 | Device and method for detecting quality of pile body of bridge squeezing and expanding supporting disc pile |
| CN113931239B (en) * | 2021-10-29 | 2023-08-25 | 山东省交通规划设计院集团有限公司 | Device and method for detecting pile disc quality of bridge extrusion-expansion support disc |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130417 |