CN102926413A - Embedded pipe for sampling pile tip of filling pile - Google Patents
Embedded pipe for sampling pile tip of filling pile Download PDFInfo
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- CN102926413A CN102926413A CN 201210461313 CN201210461313A CN102926413A CN 102926413 A CN102926413 A CN 102926413A CN 201210461313 CN201210461313 CN 201210461313 CN 201210461313 A CN201210461313 A CN 201210461313A CN 102926413 A CN102926413 A CN 102926413A
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Abstract
The invention discloses an embedded pipe for sampling a pile tip of a filling pile, which belongs to the field of in-situ concrete filling piles for fixing building foundations. Coaxial sleeves of the embedded pipe are pasted on the inner side of a steel reinforcement cage of the filling pile; the internal diameter of the embedded pipe is no less than the diameter of a drill bit of a core drilling and sampling machine; a top elevation of the embedded pipe is the same as that of the steel reinforcement cage; a bottom elevation of the embedded pipe is higher than the end elevation of the filling pile; and the two ends of the embedded pipe are blocked off. According to the embedded pipe, core drilling equipment can conveniently penetrate through a pile body through the embedded pipe to directly drill and obtain a pile tip core sample and a bearing course rock soil core sample; the concrete quality at the pile tip, the sediment condition and the supporting course condition can be evaluated; and detection modes and data are enriched, so that the building quality can be better ensured.
Description
Technical field
The invention 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.
Summary of the invention
Technical problem to be solved by this invention 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, technical scheme of the present invention 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.
Among the present invention, 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.
Among the present invention, 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 separately according to the actual conditions of engineering, and is not as a limitation of the invention.
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 invention will be further described below in conjunction with drawings and Examples and application construction method.
Fig. 1 is longitudinal plan of the present invention.
Fig. 2 is drawing in side sectional elevation of the present invention.
Fig. 3 is faces end head plugging connection detail of the present invention.
Fig. 4 is built-in pipe of the present invention 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 embodiment of the invention is provided introduce in detail, for one of ordinary skill in the art, the thought according to the embodiment of the invention all will change in specific embodiments and applications.In sum, this description should not be construed as limitation of the present invention, and all any changes of making according to design philosophy of the present invention are all within protection scope of the present invention.
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 201210461313 CN102926413A (en) | 2012-11-16 | 2012-11-16 | Embedded pipe for sampling pile tip of filling pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210461313 CN102926413A (en) | 2012-11-16 | 2012-11-16 | Embedded pipe for sampling pile tip of filling pile |
Publications (1)
| Publication Number | Publication Date |
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| CN102926413A true CN102926413A (en) | 2013-02-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210461313 Pending CN102926413A (en) | 2012-11-16 | 2012-11-16 | Embedded pipe for sampling pile tip of filling pile |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104532816A (en) * | 2014-12-30 | 2015-04-22 | 中淳高科桩业股份有限公司 | Pile tip cement soil sampling method of static drilling rooted pile |
| CN107059846A (en) * | 2017-04-14 | 2017-08-18 | 中铁四局集团有限公司 | Coordinate the super large draw ratio filling pile cage of reinforcement and drilling core checking method of drilling core checking |
| CN111321766A (en) * | 2020-03-27 | 2020-06-23 | 云南建投第一勘察设计有限公司 | Bored concrete pile end sediment detection device of loosing core |
| CN113063622A (en) * | 2021-03-16 | 2021-07-02 | 中南建筑设计院股份有限公司 | Quality detection method for slurry layer of assembled shear wall |
| CN113529814A (en) * | 2021-07-07 | 2021-10-22 | 上海市基础工程集团有限公司 | Method for detecting wall quality of hectometer-level ultra-deep underground continuous wall by drilling and coring |
| CN114034266A (en) * | 2021-09-30 | 2022-02-11 | 湖南天功测控科技有限公司 | Acoustic method foundation pile rock-socketed depth detection method for optimizing damping transducer |
| CN114837159A (en) * | 2022-03-16 | 2022-08-02 | 广东省交通规划设计研究院集团股份有限公司 | Underwater bearing platform foundation scouring detection method, detection building structure and construction method thereof |
| CN115162348A (en) * | 2022-06-27 | 2022-10-11 | 广西华蓝岩土工程有限公司 | Bored pile, waist beam with bored pile and manufacturing method of waist beam |
-
2012
- 2012-11-16 CN CN 201210461313 patent/CN102926413A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104532816A (en) * | 2014-12-30 | 2015-04-22 | 中淳高科桩业股份有限公司 | Pile tip cement soil sampling method of static drilling rooted pile |
| CN104532816B (en) * | 2014-12-30 | 2016-07-06 | 中淳高科桩业股份有限公司 | Stake stake end soil cement sampling method taken root in by a kind of quiet brill |
| CN107059846A (en) * | 2017-04-14 | 2017-08-18 | 中铁四局集团有限公司 | Coordinate the super large draw ratio filling pile cage of reinforcement and drilling core checking method of drilling core checking |
| CN111321766A (en) * | 2020-03-27 | 2020-06-23 | 云南建投第一勘察设计有限公司 | Bored concrete pile end sediment detection device of loosing core |
| CN113063622A (en) * | 2021-03-16 | 2021-07-02 | 中南建筑设计院股份有限公司 | Quality detection method for slurry layer of assembled shear wall |
| CN113529814A (en) * | 2021-07-07 | 2021-10-22 | 上海市基础工程集团有限公司 | Method for detecting wall quality of hectometer-level ultra-deep underground continuous wall by drilling and coring |
| CN114034266A (en) * | 2021-09-30 | 2022-02-11 | 湖南天功测控科技有限公司 | Acoustic method foundation pile rock-socketed depth detection method for optimizing damping transducer |
| CN114034266B (en) * | 2021-09-30 | 2024-04-26 | 湖南天功测控科技有限公司 | Acoustic method foundation pile rock-socketed depth detection method for optimizing damping transducer |
| CN114837159A (en) * | 2022-03-16 | 2022-08-02 | 广东省交通规划设计研究院集团股份有限公司 | Underwater bearing platform foundation scouring detection method, detection building structure and construction method thereof |
| CN114837159B (en) * | 2022-03-16 | 2024-04-30 | 广东省交通规划设计研究院集团股份有限公司 | Method for detecting scouring of underwater bearing platform foundation, detection construction structure and construction method thereof |
| CN115162348A (en) * | 2022-06-27 | 2022-10-11 | 广西华蓝岩土工程有限公司 | Bored pile, waist beam with bored pile and manufacturing method of waist beam |
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Application publication date: 20130213 |