CN107190790B - Bored pile head concrete quality detection device and detection method - Google Patents
Bored pile head concrete quality detection device and detection method Download PDFInfo
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- CN107190790B CN107190790B CN201710565144.5A CN201710565144A CN107190790B CN 107190790 B CN107190790 B CN 107190790B CN 201710565144 A CN201710565144 A CN 201710565144A CN 107190790 B CN107190790 B CN 107190790B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D33/00—Testing foundations or foundation structures
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Abstract
The invention discloses a bored pile head concrete quality detection device and a method, which belong to the field of bridge construction, are suitable for construction such as bored pile reinforcement cage concrete pouring, and comprise a telescopic rod, a concrete accommodating barrel, a rotating bottom plate, an upper limiting mechanism and a lower limiting mechanism, wherein the telescopic rod is connected with the concrete accommodating barrel and can telescopically adjust the length of the telescopic rod, the concrete accommodating barrel is a cylinder body which is penetrated up and down, and the bottom opening of the concrete accommodating barrel is closed or opened by the rotating bottom plate; the two rotating bottom plates are oppositely connected to the opening of the bottom of the concrete containing barrel in a left-right rotating way and can rotate between the upper limiting mechanism and the lower limiting mechanism, when the two rotating bottom plates rotate to be blocked and limited by the lower limiting mechanism due to self gravity, the opening of the bottom of the concrete containing barrel is closed by the two rotating bottom plates, and when the two rotating bottom plates rotate from the lower limiting mechanism to the upper limiting mechanism, the opening of the bottom of the concrete containing barrel is opened and the opening is gradually enlarged. The invention can realize hidden concrete visualization, ensure pile head concrete quality and reduce concrete overspray waste.
Description
Technical Field
The invention belongs to the field of bridge construction, and is suitable for construction such as casting of bored pile reinforcement cage concrete.
Background
At present, the bored pile for the bridge foundation is widely adopted due to the characteristics of mechanized operation, high construction speed, mature process, safety and reliability in the process and the like. The construction process of the bored pile mainly comprises the following steps: drilling, clearing holes, lowering a reinforcement cage, pouring concrete and the like. The underwater concrete pouring is carried out through the guide pipe during the concrete pouring, and as the underwater concrete pouring is a hidden construction procedure, the concrete pouring process cannot be directly observed, and the prior art adopts a measuring rope to measure the concrete pouring height. The pile top is a mixture composed of concrete and sediment, the strength of the mixture is low, the use requirement of a bored pile cannot be met, the pile head is generally used for super-casting, and the pile head of the super-casting part mixture is chiseled after pile forming, so that the pile body quality of the whole pile is ensured.
Disclosure of Invention
The invention aims at: the device can be put into concrete, a concrete sample at the position of a drill bit is extracted, whether the concrete at the pile head part meets the quality requirement is reflected in a visual way, and the concrete is poured continuously when the concrete does not meet the quality requirement. The device can realize hidden concrete visualization, ensure pile head concrete quality and reduce concrete overstock waste.
The aim of the invention is achieved by the following technical scheme:
a pile head concrete quality detection device of a bored pile comprises a telescopic rod, a concrete containing barrel, a rotary bottom plate, an upper limit mechanism and a lower limit mechanism, wherein the telescopic rod is connected with the concrete containing barrel and can telescopically adjust the length of the telescopic rod, the concrete containing barrel is a cylinder body which is penetrated up and down, and the bottom opening of the concrete containing barrel is closed or opened by the rotary bottom plate; the two rotating bottom plates are oppositely connected to the opening of the bottom of the concrete containing barrel in a left-right rotating way and can rotate between the upper limiting mechanism and the lower limiting mechanism, when the two rotating bottom plates rotate to be blocked and limited by the lower limiting mechanism due to self gravity, the opening of the bottom of the concrete containing barrel is closed by the two rotating bottom plates, and when the two rotating bottom plates rotate from the lower limiting mechanism to the upper limiting mechanism, the opening of the bottom of the concrete containing barrel is opened and the opening is gradually enlarged.
Alternatively, the upper limiting mechanism is arranged above the lower limiting mechanism and relatively close to the telescopic rod, and meanwhile, the upper limiting mechanism is arranged closer to the rotating joint of the rotating bottom plate and the concrete accommodating barrel than the lower limiting mechanism.
Alternatively, the two rotary bottom plates are symmetrically arranged at the opening of the bottom of the concrete containing barrel.
Alternatively, the concrete containing barrel is a cuboid barrel, and the rotating bottom plate is a cuboid plate.
Alternatively, the upper limit mechanism is an upper limit column fixed on the inner wall of the concrete containing barrel.
Alternatively, the lower limit mechanism is a lower limit column fixed on the inner wall of the concrete containing barrel.
The method for detecting the concrete quality of the pile head of the bored pile adopts the detection device, the concrete containing barrel is placed at the position of the pile head through the telescopic rod, the rotating bottom plate is automatically opened in the process of lowering, the concrete enters the concrete containing barrel, after the concrete at the pile head is obtained, the concrete containing barrel is lifted, at the moment, the rotating bottom plate is automatically closed, the concrete can not fall down, the concrete in the barrel is the concrete at the pile head, and the concrete quality of the pile head can be checked.
The foregoing inventive subject matter and various further alternatives thereof may be freely combined to form a plurality of alternatives, all of which are employable and claimed herein; and the invention can be freely combined between the (non-conflicting choices) choices and between the choices and other choices. Various combinations will be apparent to those skilled in the art from a review of the present disclosure, and are not intended to be exhaustive or all of the present disclosure.
The working process comprises the following steps: the concrete containing barrel is placed at the pile head position through the telescopic rod, the rotating bottom plate is rotated and opened until being blocked and limited by the upper limiting mechanism in the lowering process due to the resistance of the concrete, the concrete enters the concrete containing barrel, after the concrete at the pile head is obtained, the concrete containing barrel is lifted, at the moment, the rotating bottom plate is rotated to be blocked and limited by the lower limiting mechanism under the action of self gravity and the concrete gravity to be closed, the concrete cannot fall, the concrete in the barrel is the concrete at the pile head, and the concrete quality of the pile head can be checked.
The invention can freely obtain pile head concrete with different positions and depths, and only needs to stop the lowering at the required position and depth and then lift the pile head concrete in the lowering process, is not influenced by the concrete with deeper position and depth and is not influenced by the concrete in the lowering process, because the concrete in the process is directly discharged from the upper opening of the concrete accommodating barrel continuously.
The invention has the beneficial effects that: compared with the traditional rope measurement detection, the device can intuitively evaluate the concrete quality condition of the pile head of the casting pile, effectively and accurately control the concrete quality of the pile head, avoid excessive overstock and waste concrete, save cost, improve construction work efficiency and facilitate construction operation.
Drawings
FIG. 1 is a schematic elevational view of an embodiment of the present invention;
FIG. 2 is a schematic plan view of an embodiment of the present invention;
FIG. 3 is a schematic view showing an operating state of the detecting device according to the embodiment of the present invention when the detecting device is lowered;
FIG. 4 is a schematic view of the working state of the detecting device according to the embodiment of the present invention when the detecting device is lowered;
wherein 1 is a telescopic rod, 2 is a concrete containing barrel, 3 is a rotating bottom plate, 4 is an upper limit column, 5 is a lower limit column, and 6 is a rotating shaft.
Detailed Description
The following non-limiting examples illustrate the invention.
Referring to fig. 1 and 2, the bored pile head concrete quality detecting device mainly comprises a telescopic rod 1, a concrete accommodating barrel 2, two rotating bottom plates 3, an upper limit column 4 and a lower limit column 5. The telescopic rod 1 is connected with the concrete accommodating barrel 2, the length of the telescopic rod 1 is adjustable, and the concrete accommodating barrel 2 can be lowered to the position of pile head concrete; the concrete accommodating barrel 2 is a barrel body with a hollow structure and is penetrated up and down, and concrete can be stored in the concrete accommodating barrel 2; the 2 rotating bottom plates 3 are oppositely connected at the opening of the bottom of the concrete containing barrel 2 in a left-right rotating way through a rotating shaft 6, and the limiting and rotating of the rotating bottom plates 3 are realized through the small rotating holes on the side wall of the concrete containing barrel 2; preferably, as shown in the drawings of the embodiment, the concrete accommodating barrel 2 is a cuboid barrel, the rotating bottom plates 3 are rectangular plates, and the two rotating bottom plates 3 are symmetrically arranged at the opening of the bottom of the concrete accommodating barrel 2. The upper limit column 4 is relatively close to the upper side of the telescopic rod 1 at the lower limit column 5, and meanwhile, the upper limit column 4 is relatively close to the rotating joint of the rotating bottom plate 3 and the concrete accommodating barrel 2 at the lower limit column 5. The upper limit column 4 is welded on the inner side wall of the concrete containing barrel 2, when the concrete containing barrel 2 is put down, the two rotary bottom plates 3 rotate under the action of concrete resistance, an opening through which concrete passes is formed between the two rotary bottom plates 3, the concrete freely enters, and excessive concrete is discharged from the opening at the top of the concrete containing barrel 2 again; the lower limit column 5 is welded to the bottom of the inner side wall of the concrete accommodating barrel 2, when the concrete accommodating barrel 2 is lifted up with concrete, the two rotary bottom plates 3 are blocked by the lower limit column 5 to be relatively closed under the action of the dead weight of the concrete, so that the concrete is prevented from falling down.
The method for detecting the pile head concrete quality of the bored pile comprises the following steps: placing the concrete accommodating barrel 2 at the pile head position through the telescopic rod 1, turning the bottom plate 3 to open in the process of lowering as shown in FIG. 3, and allowing concrete to enter the concrete accommodating barrel 2; after the concrete at the pile head is obtained, the concrete accommodating barrel 2 is lifted, at the moment, the concrete accommodating barrel 2 rotates to close the bottom plate 3, the concrete cannot fall, and referring to the figure 4, the concrete in the concrete accommodating barrel 2 is the concrete at the pile head, so that the concrete quality of the pile head can be checked. And if the requirements are not met, continuing pouring concrete.
Taking a certain bridge construction as an example, the novel device is adopted in the construction of the bridge approach bored pile, the height of the pile head concrete is reduced to 1 meter from the original 2.5 meters through the field practice of pile head concrete overcasting, the quality coring detection of the pile head after the overcasting part is chiseled is qualified, and the implementation effect is good.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (2)
1. A bored pile head concrete quality detection device which is characterized in that: the telescopic rod is connected with the concrete accommodating barrel and can telescopically adjust the length of the telescopic rod, the concrete accommodating barrel is a barrel body which is penetrated up and down, and the bottom opening of the concrete accommodating barrel is closed or opened by the rotating bottom plate; the two rotating bottom plates are oppositely connected to the opening at the bottom of the concrete containing barrel in a left-right rotating way and can rotate between the upper limiting mechanism and the lower limiting mechanism, when the two rotating bottom plates rotate to be blocked and limited by the lower limiting mechanism due to self gravity, the opening at the bottom of the concrete containing barrel is closed by the two rotating bottom plates, and when the two rotating bottom plates rotate from the lower limiting mechanism to the upper limiting mechanism, the opening at the bottom of the concrete containing barrel is opened and the opening is gradually enlarged; the upper limiting mechanism is arranged above the lower limiting mechanism and relatively close to the telescopic rod, and meanwhile, the upper limiting mechanism is arranged closer to the rotating joint of the rotating bottom plate and the concrete accommodating barrel than the lower limiting mechanism; the two rotating bottom plates are symmetrically arranged at the opening of the bottom of the concrete accommodating barrel; the concrete accommodating barrel is a cuboid barrel, and the rotary bottom plate is a cuboid plate; the upper limit mechanism is an upper limit column fixed on the inner wall of the concrete accommodating barrel; the lower limit mechanism is a lower limit column fixed on the inner wall of the concrete containing barrel.
2. A method for detecting the concrete quality of a pile head of a bored pile, which adopts the detecting device as set forth in claim 1, and is characterized in that: the concrete containing barrel is placed at the position of the pile head through the telescopic rod, the rotary bottom plate is automatically opened in the process of lowering, concrete enters the concrete containing barrel, after the concrete at the pile head is obtained, the concrete containing barrel is lifted, the rotary bottom plate is automatically closed at the moment, the concrete cannot fall, the concrete in the barrel is the concrete at the pile head, and the concrete quality of the pile head can be checked.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710565144.5A CN107190790B (en) | 2017-07-12 | 2017-07-12 | Bored pile head concrete quality detection device and detection method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710565144.5A CN107190790B (en) | 2017-07-12 | 2017-07-12 | Bored pile head concrete quality detection device and detection method |
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| Publication Number | Publication Date |
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| CN107190790A CN107190790A (en) | 2017-09-22 |
| CN107190790B true CN107190790B (en) | 2023-10-03 |
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| CN201710565144.5A Active CN107190790B (en) | 2017-07-12 | 2017-07-12 | Bored pile head concrete quality detection device and detection method |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108663233A (en) * | 2018-03-29 | 2018-10-16 | 五冶集团上海有限公司 | A kind of proportion box for taking hole bottom slurry |
| CN110793812A (en) * | 2019-11-20 | 2020-02-14 | 河南科技大学 | Multifunctional water sample in-situ collection device |
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| JP2004293213A (en) * | 2003-03-27 | 2004-10-21 | Taisei Corp | Method for evaluating soundness of concrete pile |
| JP2005180015A (en) * | 2003-12-19 | 2005-07-07 | Daicho Tokushu Doboku Kk | Method of improving unevenly settled foundation and structure for improving unevenly settled foundation |
| CN201367588Y (en) * | 2009-02-26 | 2009-12-23 | 无锡职业技术学院 | Underwater concrete sampler |
| CN102797268A (en) * | 2012-08-31 | 2012-11-28 | 机械工业勘察设计研究院 | Installation method for testing tube used for testing internal force of pre-stress tubular pile with slide micrometer |
| CN104652501A (en) * | 2015-02-11 | 2015-05-27 | 交通运输部公路科学研究所 | Pile foundation quality detection device and pile foundation quality detection method of shock excitation in pile side prospect hole |
| CN207130795U (en) * | 2017-07-12 | 2018-03-23 | 中交二航局第四工程有限公司 | A kind of drilled pile pile crown concrete quality detection device |
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2017
- 2017-07-12 CN CN201710565144.5A patent/CN107190790B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004293213A (en) * | 2003-03-27 | 2004-10-21 | Taisei Corp | Method for evaluating soundness of concrete pile |
| JP2005180015A (en) * | 2003-12-19 | 2005-07-07 | Daicho Tokushu Doboku Kk | Method of improving unevenly settled foundation and structure for improving unevenly settled foundation |
| CN201367588Y (en) * | 2009-02-26 | 2009-12-23 | 无锡职业技术学院 | Underwater concrete sampler |
| CN102797268A (en) * | 2012-08-31 | 2012-11-28 | 机械工业勘察设计研究院 | Installation method for testing tube used for testing internal force of pre-stress tubular pile with slide micrometer |
| CN104652501A (en) * | 2015-02-11 | 2015-05-27 | 交通运输部公路科学研究所 | Pile foundation quality detection device and pile foundation quality detection method of shock excitation in pile side prospect hole |
| CN207130795U (en) * | 2017-07-12 | 2018-03-23 | 中交二航局第四工程有限公司 | A kind of drilled pile pile crown concrete quality detection device |
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| CN107190790A (en) | 2017-09-22 |
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