CN111042231B - Method for detecting in-hole concrete pouring elevation of underground bored pile - Google Patents
Method for detecting in-hole concrete pouring elevation of underground bored pile Download PDFInfo
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- CN111042231B CN111042231B CN202010026509.9A CN202010026509A CN111042231B CN 111042231 B CN111042231 B CN 111042231B CN 202010026509 A CN202010026509 A CN 202010026509A CN 111042231 B CN111042231 B CN 111042231B
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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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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
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- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
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- General Engineering & Computer Science (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses a method for detecting the elevation of concrete pouring in a hole of an underground bored cast-in-place pile, which comprises the following steps: 1) installation of direct detection equipment: 2) installation of the signal transmission equipment: 3) and (4) lowering a reinforcement cage: 4) and (3) detecting the concrete pouring height: 5) recovering the vibration analysis device; the invention has the beneficial effects that: whether reach predetermined elevation position through set up conductivity detection device and proportion detection device on the steel reinforcement cage can be effective and accurate detection out the concrete, send vibrations through vibrations generating device simultaneously, directly transmit vibrations to vibrations analytical equipment by the reinforcing bar to carry out analysis by vibrations analytical equipment and report to the police, thereby reach the purpose that accurate control concrete fills the elevation.
Description
Technical Field
The invention relates to the technical field of building construction detection engineering, in particular to a method for detecting the concrete pouring elevation in a hole of an underground bored cast-in-place pile.
Background
At present, most of commercial buildings are provided with basement layers, the basement layers generally comprise one layer, two layers or even three layers, pile holes are required to be constructed downwards from the ground in the initial construction stage, reinforced concrete is arranged in the pile holes to form an underground pile foundation, the thickness of the basement layer is reserved when the reinforced concrete is constructed so as to facilitate the excavation of the basement, and therefore, it is difficult to accurately judge whether concrete pouring reaches the bottom surface elevation of the basement layer; generally judge according to constructor's experience among the prior art, pour the concrete into basement layer bottom surface take the altitude, then chisel when constructing the basement layer and remove, can lead to the waste of concrete like this, influence the whole progress of construction simultaneously, do not accord with the direction of national green yet.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a method for detecting the in-hole concrete pouring elevation of a bored pile with a reasonable structure.
The technical scheme of the invention is as follows:
a method for detecting the concrete pouring elevation in a hole of a bored pile in the underground is characterized by comprising the following steps:
1) installation of direct detection equipment: after the reinforcement cage is manufactured and is placed to the last time, at least one conductivity detection device is bound to the upper end of the reinforcement cage on the ground and is located at an elevation position where concrete needs to be poured in the later period;
2) installation of the signal transmission equipment: binding a vibration generating device at a corresponding position of a hanging rib at the upper part of the conductivity detection device, connecting the vibration generating device with the conductivity detection device through signals, and binding the top of the same hanging rib with a vibration analysis device;
3) and (4) lowering a reinforcement cage: lowering the steel reinforcement cage with the direct detection equipment and the signal transmission equipment installed into the pile hole, sinking the steel reinforcement cage to a designed elevation, and fixing the steel reinforcement cage on the ground through a hanging rib;
4) and (3) detecting the concrete pouring height: pouring concrete into the pile hole, when the concrete reaches the position of the conductivity detection device, the conductivity detection device actively sends a signal to the vibration generation device, the vibration generation device actively sends vibration with fixed frequency after receiving the signal, the energy of the vibration is directly transmitted to the vibration analysis device at the top of the hanging bar by the reinforcing steel bar, the vibration analysis device analyzes the received vibration signal and converts the vibration signal into a wireless signal, the wireless signal is uploaded to a cloud end or sent to a display terminal, an alarm signal is sent out at the cloud end or the display terminal, and finally, ground constructors control the stop of concrete pouring;
5) recovering the vibration analysis device: and after the pile is poured, recycling the vibration analysis device.
The method for detecting the in-hole concrete pouring elevation of the underground bored cast-in-place pile is characterized in that three conductivity detection devices are bound and arranged on a reinforcement cage in the step 1), the three conductivity detection devices are respectively positioned at the upper end of the reinforcement cage, and the topmost conductivity detection device is positioned at the elevation position to which concrete needs to be poured in the later period; the three conductivity detection devices are respectively connected with the vibration generation device by cables.
The detection method for the in-hole concrete pouring elevation of the underground bored cast-in-place pile is characterized in that a specific gravity detection device is further bound and arranged on a reinforcement cage in the step 1), the specific gravity detection device is bound at the position below the bottommost conductivity detection device, and the specific gravity detection device is connected with a vibration generation device through a cable.
The detection method for the in-hole concrete pouring elevation of the underground bored pile is characterized in that when concrete is poured into the pile hole in the step 4), when the concrete reaches the position of the specific gravity detection device, the specific gravity detection device actively sends signals to the vibration generation device, and when the concrete sequentially reaches the positions of the three conductivity detection devices, the three conductivity detection devices respectively and actively send signals to the vibration generation device sequentially; after the vibration generating device receives signals sent by the specific gravity detection device and the three conductivity detection devices at the same time, vibration with fixed frequency is actively sent out, the energy of the vibration is directly transmitted to the vibration analysis device through the hanging ribs, the vibration analysis device analyzes the received vibration signals and converts the vibration signals into wireless signals, the wireless signals are uploaded to the cloud or sent to the display terminal, an alarm signal is sent out at the cloud or the display terminal, and finally the pouring of concrete is stopped under the control of ground constructors.
The detection method for the in-hole concrete pouring elevation of the underground bored cast-in-place pile is characterized in that the specific gravity detection device and the three conductivity detection devices are all bound and arranged at the positions corresponding to the main bars of the reinforcement cage connected with the hanging bars in the later period.
The invention has the beneficial effects that: whether reach predetermined elevation position through set up conductivity detection device and proportion detection device on the steel reinforcement cage can be effective and accurate detection out the concrete, send vibrations through vibrations generating device simultaneously, directly transmit vibrations to vibrations analytical equipment by the reinforcing bar to carry out analysis by vibrations analytical equipment and report to the police, thereby reach the purpose that accurate control concrete fills the elevation.
Drawings
FIG. 1 is a schematic view of the overall mounting structure of the present invention;
FIG. 2 is a schematic view of the indirect detection apparatus of the present invention;
in the figure: 1-specific gravity detection device, 2-first conductivity detection device, 3-second conductivity detection device, 4-third conductivity detection device, 5-indirect detection equipment, 501-vibration generation device, 502-reinforcing steel bar, 503-vibration analysis device and 6-reinforcing steel bar cage.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
Example (b):
as shown in fig. 1-2, a method for detecting the elevation of concrete poured into a hole of a bored pile includes the following steps:
1) installation of direct detection equipment: after the reinforcement cage 6 is manufactured and is lowered to the last time, a specific gravity detection device and three conductivity detection devices are bound and arranged on the upper end of the reinforcement cage 6 (specifically on a main reinforcement of the reinforcement cage 6 connected with a hanging reinforcement in the later period) on the ground, wherein the topmost conductivity detection device is positioned at an elevation position where concrete needs to be poured in the later period; as shown in fig. 1, a specific gravity detection device 1, a first conductivity detection device 2, a second conductivity detection device 3 and a third conductivity detection device 4 are arranged on a reinforcement cage 6 from bottom to top, wherein the specific gravity detection device 1 is used for judging the specific gravity of concrete, and since slurry generally exists in a pile hole when concrete is poured into the pile hole, and the specific gravity of the slurry is smaller than that of the concrete and floats above the concrete, the specific gravity detection device 1 can accurately judge the slurry and the concrete; conductivity detection device 2 is used for judging the conductivity of concrete, adopts three conductivity detection device 2 to add a proportion detection device 1 can prevent to adopt conductivity detection device 2 alone to produce the false alarm phenomenon to more accurate elevation to concrete is poured is controlled.
2) Installation of the signal transmission equipment: a vibration generating device 501 is bound and arranged at a corresponding position of a steel reinforcement cage hanging rib 502, meanwhile, the vibration generating device 501 is respectively connected with a specific gravity detecting device 1, a first conductivity detecting device 2, a second conductivity detecting device 3 and a third conductivity detecting device 4 through signals, and a vibration analyzing device 503 is bound and arranged at the top of the same steel reinforcement cage hanging rib 502;
3) and (4) lowering a reinforcement cage: lowering the steel reinforcement cage with the direct detection equipment and the signal transmission equipment installed into the pile hole, sinking the steel reinforcement cage to a designed elevation, and fixing the steel reinforcement cage on the ground through a steel reinforcement cage hanging rib 502;
4) and (3) detecting the concrete pouring height: when concrete is poured into the pile hole, when the concrete reaches the position of the specific gravity detection device 1, the specific gravity detection device 1 actively sends a signal to the vibration generation device 501, when the concrete reaches the positions of the three conductivity detection devices, the three conductivity detection devices respectively and actively send signals to the vibration generation device 501, when the vibration generation device 501 simultaneously receives signals sent by the specific gravity detection device and the three conductivity detection devices, vibration with fixed frequency is actively sent, the energy of the vibration is directly transmitted to the vibration analysis device 503 through the steel reinforcement cage hanging ribs 502, the vibration analysis device analyzes the received vibration signal and converts the vibration signal into a wireless signal, the wireless signal is uploaded to a cloud end or sent to a display terminal, an alarm signal is sent out at the cloud end or the display terminal, and finally, the ground constructor stops pouring the concrete;
5) recovering the vibration analysis device: after the pile is poured, the vibration analysis device 503 is recycled, wherein the conductivity detection device, the specific gravity detection device and the vibration generation device are not recycled.
Claims (1)
1. A method for detecting the in-hole concrete pouring elevation of an underground cast-in-situ bored pile is characterized by comprising the following steps:
1) installation of direct detection equipment: after the reinforcement cage (6) is manufactured and is lowered to the last section, a specific gravity detection device (1), a first conductivity detection device (2), a second conductivity detection device (3) and a third conductivity detection device (4) are arranged on a main reinforcement of the reinforcement cage (6) connected with a hanging reinforcement in the ground opposite later stage from bottom to top, wherein the third conductivity detection device (4) at the top is positioned at an elevation position where concrete needs to be poured in the later stage, and the specific gravity detection device (1) is used for judging the specific gravity of the concrete; the conductivity detection device is used for judging the conductivity of the concrete;
2) installation of the signal transmission equipment: a vibration generating device (501) is bound and arranged at a corresponding position of a steel reinforcement cage hanging rib (502), the vibration generating device (501) is respectively in signal connection with a specific gravity detection device (1), a first conductivity detection device (2), a second conductivity detection device (3) and a third conductivity detection device (4), and a vibration analysis device (503) is bound and arranged at the top of the same steel reinforcement cage hanging rib (502);
3) and (4) lowering a reinforcement cage: the steel reinforcement cage with the installed direct detection equipment and signal transmission equipment is placed into the pile hole, the steel reinforcement cage is sunk to the designed elevation, and the steel reinforcement cage is fixed on the ground through a steel reinforcement cage hanging rib (502);
4) and (3) detecting the concrete pouring height: when concrete is poured into the pile hole, when the concrete reaches the position of the specific gravity detection device (1), the specific gravity detection device (1) actively sends a signal to the vibration generation device (501), when the concrete reaches the positions of the three conductivity detection devices, the three conductivity detection devices respectively and actively send signals to the vibration generation device (501), when the vibration generating device (501) receives signals sent by the specific gravity detecting device and the three conductivity detecting devices at the same time, actively sends out vibration with fixed frequency, the energy of the vibration is directly transmitted to a vibration analysis device (503) by a steel reinforcement cage hanging bar (502), the vibration analysis device analyzes the received vibration signal and converts the vibration signal into a wireless signal, the wireless signal is uploaded to a cloud terminal or sent to a display terminal, sending an alarm signal at the cloud or a display terminal, and finally stopping concrete pouring by ground constructors;
5) recovery of the vibration analysis device: and after the pile is poured, recycling the vibration analysis device (503).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010026509.9A CN111042231B (en) | 2020-01-10 | 2020-01-10 | Method for detecting in-hole concrete pouring elevation of underground bored pile |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010026509.9A CN111042231B (en) | 2020-01-10 | 2020-01-10 | Method for detecting in-hole concrete pouring elevation of underground bored pile |
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| CN111042231A CN111042231A (en) | 2020-04-21 |
| CN111042231B true CN111042231B (en) | 2022-04-01 |
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| CN112067665A (en) * | 2020-08-13 | 2020-12-11 | 四川坤德智联科技有限公司 | Fluid medium detection device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN202139616U (en) * | 2011-05-17 | 2012-02-08 | 天津二十冶建设有限公司 | Underwater elevation controller for cast-in-place concrete pile |
| CN103643703B (en) * | 2013-12-17 | 2017-01-18 | 中国矿业大学 | Intelligent monitoring device and method for underwater concrete pouring elevation |
| CN104631517B (en) * | 2014-12-26 | 2016-08-24 | 湖北中南勘察基础工程有限公司 | Cast-in-situ bored pile concrete interface monitoring device and method |
| JP6173551B2 (en) * | 2016-11-02 | 2017-08-02 | 大成建設株式会社 | Foundation pile |
| CN108547331B (en) * | 2018-04-25 | 2019-12-20 | 深圳市工勘岩土集团有限公司 | Cast-in-place pile concrete elevation measurement and over-grouting control method |
| CN110439044A (en) * | 2019-09-03 | 2019-11-12 | 广东省珠海工程勘察院 | A kind of concrete-cement slurry interface detector |
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