CN113863296A - Separable recovery steel protects a section of thick bamboo and control system - Google Patents
Separable recovery steel protects a section of thick bamboo and control system Download PDFInfo
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- CN113863296A CN113863296A CN202110977571.0A CN202110977571A CN113863296A CN 113863296 A CN113863296 A CN 113863296A CN 202110977571 A CN202110977571 A CN 202110977571A CN 113863296 A CN113863296 A CN 113863296A
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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
- E02D5/66—Mould-pipes or other moulds
- E02D5/665—Mould-pipes or other moulds for making piles
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/10—Deep foundations
- E02D27/12—Pile foundations
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
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- Engineering & Computer Science (AREA)
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- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
The invention relates to a separable recycled steel casing, which comprises: the steel pile casing comprises an upper steel pile casing, a lower steel pile casing, a connecting device and a fixing device, wherein the connecting device is arranged on the lower steel pile casing, the upper steel pile casing and the lower steel pile casing are connected through the connecting device during construction and separated after construction is completed, one end of the fixing device is connected with the upper steel pile casing, and the other end of the fixing device is connected with the connecting device. By adopting the technical scheme, the steel casing can be recycled, the real-time sinking condition of the steel casing can be known in real time, economic resources are greatly saved, the construction efficiency is improved, and the construction safety is improved.
Description
Technical Field
The invention relates to the field of steel casing construction, in particular to a separable recycled steel casing and a control system.
Background
Pile foundation construction under complex geological conditions has been a major difficulty in engineering, particularly for pile foundations in karst cave regions. In the traditional construction, a grouting method or a steel casing follow-up method is generally adopted when a large karst cave is encountered. When the steel pile casing follow-up method is handling the solution cavity pile foundation, construction speed is fast, it is effectual to become a stake, nevertheless after the construction is accomplished, the steel pile casing can not recycle, especially under the condition that the steel pile casing is the merogenesis structure, this kind of condition is more serious, consequently, under construction environment, the steel pile casing can not recycle, causes engineering cost high, how to carry out partial recovery to the steel pile casing after the engineering is accomplished and become the urgent technical problem who waits to solve in the engineering.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and the invention aims to provide a separable recycled steel casing and a control system, which can partially recycle the steel casing consumed by karst cave treatment, so that the construction quality of a karst cave pile foundation is ensured, and the construction cost is greatly saved.
The above technical object of the present invention will be achieved by the following technical solutions.
A separable recycled steel casing comprising: the steel pile casing comprises an upper steel pile casing, a lower steel pile casing, a connecting device and a fixing device, wherein the connecting device is arranged on the lower steel pile casing, the upper steel pile casing and the lower steel pile casing are connected through the connecting device during construction and separated after construction is completed, one end of the fixing device is connected with the upper steel pile casing, and the other end of the fixing device is connected with the connecting device.
The above-mentioned aspect and any possible implementation manner further provide an implementation manner, wherein the connecting device is an electromagnetic attraction device, and the number of the electromagnetic attraction devices is at least three and is evenly arranged around the circumference of the lower section steel casing.
The electromagnetic attraction device is a trapezoid body, the contact surface of the electromagnetic attraction device and the lower section steel casing is two electromagnetic attraction surfaces, the two electromagnetic attraction surfaces form an obtuse angle, a groove is formed in the middle of the electromagnetic attraction surface, and the two electromagnetic attraction surfaces and the groove form a U-shaped structure.
The above-mentioned aspect and any possible implementation manner further provide an implementation manner, wherein a positioner is installed inside each electromagnetic attracting device, and the positioner is used for providing position information of the lower section steel casing.
In the aspect and any possible implementation manner described above, an implementation manner is further provided, in which each electromagnetic attraction device is provided with a wiring port, and a cable line supplies power to the electromagnetic attraction device through the wiring port.
The above aspect and any possible implementation manner further provide an implementation manner, wherein one end of the cable is connected with the wiring port, and the other end of the cable passes through the fixing device to be connected with an external power supply.
The above-described aspects and any possible implementation further provide an implementation in which the fixing device is made of high-strength steel material, so as to ensure stability of the electromagnetic attraction device.
The invention also provides a control system for the separable recycled steel casing, which comprises the separable recycled steel casing and a remote controller, wherein the remote controller is used for controlling the connection and the separation of the lower section of steel casing and the connecting device.
The above aspects and any possible implementation manners further provide an implementation manner, a switch is arranged on the remote controller, the switch is turned on, and an internal coil of the electromagnetic suction device of the connecting device is electrified to generate magnetic force to suck the lower section of steel casing; after the switch is closed, the internal coil of the electromagnetic suction device of the connecting device is powered off, and the demagnetization is realized when the magnetic force disappears, so that the connection with the lower section steel casing is disconnected.
In the above aspect and any possible implementation manner, there is further provided an implementation manner, where the positioning information of the positioner in the connection device is in a three-dimensional coordinate network manner, and the positioning information can be transmitted to the remote controller in real time.
The invention has the beneficial technical effects
In the embodiment provided by the invention, the separable recycled steel casing comprises: the steel pile casing comprises an upper steel pile casing, a lower steel pile casing, a connecting device and a fixing device, wherein the connecting device is arranged on the lower steel pile casing, the upper steel pile casing and the lower steel pile casing are connected through the connecting device during construction and separated after construction is completed, one end of the fixing device is connected with the upper steel pile casing, and the other end of the fixing device is connected with the connecting device. By adopting the technical scheme, the steel casing can be recycled, the real-time sinking condition of the steel casing can be known in real time, economic resources are greatly saved, the construction efficiency is improved, and the construction safety is improved. Compared with the prior art, the advantages are as follows:
(1) the invention adopts an electromagnetic absorption means to connect the upper and lower steel protective cylinders, and has better guarantee compared with the traditional mechanical buckle connection.
(2) The on-off of the electromagnetic attraction can be controlled through remote control, repeated implementation can be achieved, the fault tolerance rate is high, and the method is convenient and fast.
(3) The steel casing is internally provided with the positioners, and three groups of positioners are uniformly distributed around the steel casing to form a three-dimensional coordinate network with the pile position center as the origin, so that ground workers can master the position information of the steel casing in real time in the sinking process of the steel casing and judge various emergency situations such as steel casing deflection and the like through the position information of the three groups of positioners.
(4) The electromagnetic attraction device adopts a full-sealing structure, and the outer layer is made of a high-strength material, so that the influence caused by vibration sinking is reduced.
(5) The electromagnetic attraction device and the steel pile casing contact surface adopt a U-shaped groove design structure, and are divided into two electromagnetic attraction surfaces and a groove, so that the steel pile casing is more attached, and the attraction force is stronger.
Drawings
Embodiments of the invention are described in detail below with reference to the attached drawing figures, wherein:
FIG. 1 is a schematic perspective view of a separable recycled steel casing according to an embodiment of the present invention;
FIG. 2 is a front view of a separable recycled steel casing in an embodiment of the present invention;
FIG. 3 is a rear view of a separable recycled steel casing in an embodiment of the present invention;
FIG. 4 is a top view of a separable recycled steel casing in an embodiment of the present invention;
FIG. 5 is a schematic view of an electromagnetic attraction device in a separable recycled steel casing according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of a separable recycled steel casing control system in an embodiment of the invention.
The reference numbers illustrate:
an upper section steel casing 101, a lower section steel casing 102, a fixing structure 2, a first electromagnetic attraction device 301, a second electromagnetic attraction device 302, a third electromagnetic attraction device 303, an electromagnetic attraction surface 4 and a wiring port 5
Detailed Description
In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following detailed description is made with reference to the accompanying drawings and specific examples, but the embodiments of the present invention are not limited thereto.
As shown in fig. 1, 2 and 3, the invention relates to a separable recycled steel casing for karst cave pile foundation construction, which comprises: the steel pile casing comprises an upper section steel pile casing 101, a lower section steel pile casing 102, a connecting device and a fixing device, wherein the connecting device is realized by an electromagnetic attraction device 3, and the fixing device is realized by a fixing structure 2. The electromagnetic attraction device 3 is arranged on the lower steel casing 102 and evenly distributed around the circumference of the lower steel casing 102, the number of the electromagnetic attraction device is at least three, and the upper steel casing 101 and the lower steel casing 102 are connected through the electromagnetic attraction device 3 during construction and separated after construction is completed. The electromagnetic suction device 3, the upper steel guard 101 and the lower steel guard 102 can be connected during construction, and can be separated through the electromagnetic suction device 3 after construction is finished, so that the upper steel guard 101 and all the electromagnetic suction devices 3 are recovered. The fixed structure 2 one end is connected upper festival steel and is protected a section of thick bamboo 101, and one end is connected electromagnetic attraction device 3, just fixed structure 2 adopts high strength steel to make, guarantees all electromagnetic attraction devices 3 and its self stability when the steel protects a section of thick bamboo sinking construction.
As shown in fig. 4, three electromagnetic attraction devices 3 are arranged around a steel casing 1, the three electromagnetic attraction devices 3 are evenly distributed and surround the steel casing 1, a first electromagnetic attraction device 301, a second electromagnetic attraction device 302, and a third electromagnetic attraction device 303 are respectively arranged above all the electromagnetic attraction devices 3, one end of a cable is connected with the first electromagnetic attraction device 5 so as to connect the electromagnetic attraction devices 3, the other end of the cable penetrates through the fixing structure 2 to be connected with an external power supply, the external power supply is arranged on the ground, and the cable penetrates through the fixing structure 2 to be connected with the external power supply on the ground so as to provide power for the electromagnetic attraction devices 3. The electromagnetic suction devices 3 are all provided with positioners, namely the positioner 1, namely the first positioner, is arranged in the No. 1 electromagnetic suction device 301; the No. 2 electromagnetic absorption device 302 is internally provided with a positioner 2, namely a second positioner; namely, the positioner 3, namely, the third positioner, the first to third positioners are installed in the electromagnetic suction device 303 No. 3, and position information of the lower steel casing 102 can be provided at any time in the sinking process of the lower steel casing 102, the position information of each positioner is provided with x-axis, y-axis and z-axis data of the lower steel casing 102 as an origin, and the three positioners need to be calibrated before use.
As shown in fig. 5, the electromagnetic device 3 is a trapezoid, the contact surface with the lower steel casing 102 is two electromagnetic attraction surfaces 4, the two electromagnetic attraction surfaces are arranged at an obtuse angle, a groove is formed in the middle of the electromagnetic attraction surfaces, and the two electromagnetic attraction surfaces and the groove form a U-shaped structure. The U-shaped groove structure enables the contact surface of the lower section of steel protective cylinder 102 to be divided into the two electromagnetic attraction surfaces 4, the two electromagnetic attraction surfaces 4 form an obtuse angle, and a groove is formed in the middle of the two electromagnetic attraction surfaces, so that the electromagnetic attraction device 3 is more firmly attached to the surface of the lower section of steel protective cylinder 102, the electromagnetic attraction device 3 is integrally of a full-sealing structure, and the environment adaptability is strong. The electromagnetic attraction device 3 utilizes an electromagnetic principle, and the internal coil is electrified to generate magnetic force after being electrified, and the lower steel casing 102 contacting the surface is tightly attracted by the magnetic conduction panel on the electromagnetic attraction device; and after the power is cut off, the internal coil is cut off, so that the magnetic force in the electromagnetic attraction device 3 disappears to realize demagnetization, and the connection with the lower steel casing 102 is disconnected.
The invention also provides a control system for the separable recycled steel casing, which comprises the separable recycled steel casing and a remote controller, wherein the remote controller is used for controlling the connection and the separation of the lower section of steel casing and the connecting device. As shown in fig. 6, the positioner 1, the positioner 2 and the positioner 3 are respectively installed inside the electromagnetic attraction device 1, the electromagnetic attraction device 2 and the electromagnetic attraction device 3, the positioner 1, the positioner 2 and the positioner 3 are respectively arranged at the position corresponding to the ground pile position central point and are transmitted to the wireless remote controller, and a worker can monitor the sinking condition of the steel casing on the ground in real time. The positioning information of the positioner 1, the positioner 2 and the positioner 3 is determined by adopting a three-dimensional coordinate network mode and can be transmitted to the remote controller end in real time, and the remote controller end respectively displays the coordinate information of an x axis, a y axis and a z axis. The remote controller adopts a wireless remote controller, and a control switch for controlling the electromagnetic attraction device 3 is arranged on the wireless remote controller. After the electromagnetic attraction device 3 is electrically connected with a ground power supply through a cable, a control switch on a wireless remote controller is turned on, an internal coil of the electromagnetic attraction device 3 generates magnetic force due to electrification, and the electromagnetic attraction surface 4 is tightly attracted to the outer surface of the lower steel casing 102 through a magnetic conduction panel on the electromagnetic attraction device, and the steel casing is used for pile foundation construction; after a control switch on the wireless remote controller is turned off, the internal coil of the electromagnetic attraction device 3 is powered off, namely the coil does not generate magnetic force any more, the original magnetic force disappears to realize demagnetization, the electromagnetic attraction surface 4 of each electromagnetic attraction device 3 is separated from the outer surface of the lower steel casing 102, so that the electromagnetic attraction device 3 is disconnected from the lower steel casing 102.
The specific implementation mode of the separable recycled steel casing is as follows:
in the actual construction process, the upper steel casing 101, the lower steel casing 102, the connecting device and the fixing device components are prefabricated and processed in a factory in advance, the position, the depth and other information of the underground karst cave are determined according to a geotechnical investigation report, and the lengths required by the lower steel casing 102 and the upper steel casing 101 are calculated respectively. Before pile foundation construction is carried out, a pile position central point is determined, position information of all the locators is calibrated by taking the pile position central point as an original point, and after calibration is completed, the three locators are located in a three-dimensional coordinate axis xy plane together to form an equilateral triangle with the pile position central point as an inner center. For example, in the sinking process, attention is paid to z-axis coordinate information of each positioner at any moment, and when the difference between three positioners is large, the fact that the steel casing is inclined in the sinking process can be known, and correction is required to be performed in time. The correction result can be reconstructed into an equilateral triangle which is removed from the z-axis coordinate and takes the pile position central point as the center in the xy-axis plane by using the coordinate information of the three locators. The specific situation is judged according to the specific position information received during construction. During pile foundation construction, the upper section of steel casing 101 is downwards inserted and driven through the vibration hammer, and the lower section of steel casing 102 is leaked to ensure that the electromagnetic attraction device 3 can be normally connected. When an external power supply access is opened, the internal coil of the electromagnetic suction device 3 is electrified to generate magnetic force, the lower steel casing 102 contacting the surface is tightly sucked through the magnetic conduction panel, after pile foundation construction is completed, power can be cut off through the wireless remote controller, at the moment, the magnetic force disappears to realize demagnetization through the coil power cut-off, and therefore connection with the lower steel casing 102 is disconnected. The upper section steel casing 101 and the lower section steel casing 102 are separated, and the electromagnetic suction device 3 and the upper section steel casing 101 can be recycled.
While the foregoing description shows and describes several preferred embodiments of the invention, it is to be understood, as noted above, that the invention is not limited to the forms disclosed herein, but is not intended to be exhaustive or to exclude other embodiments and may be used in various other combinations, modifications, and environments and is capable of changes within the scope of the invention as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A separable recovery steel protects a section of thick bamboo, its characterized in that includes: the steel pile casing comprises an upper steel pile casing, a lower steel pile casing, a connecting device and a fixing device, wherein the connecting device is arranged on the lower steel pile casing, the upper steel pile casing and the lower steel pile casing are connected through the connecting device during construction and separated after construction is completed, one end of the fixing device is connected with the upper steel pile casing, and the other end of the fixing device is connected with the connecting device.
2. The separable recycling steel casing according to claim 1, wherein the connecting means is electromagnetic attraction means, and the electromagnetic attraction means is at least three and is evenly arranged around the circumference of the lower section steel casing.
3. The separable recycled steel protective cylinder according to claim 2, wherein the electromagnetic absorption device is a trapezoid, the contact surface with the lower section of steel protective cylinder is two electromagnetic absorption surfaces, the two electromagnetic absorption surfaces are arranged at an obtuse angle, a groove is formed in the middle of the two electromagnetic absorption surfaces, and the two electromagnetic absorption surfaces and the groove form a U-shaped structure.
4. The separable recycling steel casing according to claim 2, wherein each electromagnetic attraction device is internally provided with a locator, and the locator is used for providing position information of the lower section steel casing.
5. The separable recovery steel casing according to claim 2, wherein each electromagnetic attraction device is provided with a wiring port, and a cable is used for supplying power to the electromagnetic attraction device through the wiring port.
6. The separable recycled steel casing according to claim 1, wherein one end of the cable is connected to a wiring port, and the other end of the cable is connected to an external power source through the fixing device.
7. The separable recycled steel casing according to claim 2, wherein the fixing device is made of high-strength steel for ensuring the stability of the electromagnetic attraction device.
8. A control system for a separable recycled steel casing, comprising the separable recycled steel casing according to any one of claims 1 to 7 and a remote controller, wherein the remote controller is used for controlling the connection and the disconnection of the lower section steel casing and the connecting device.
9. The control system of the separable recycled steel casing according to claim 8, wherein a switch is arranged on the remote controller, when the switch is turned on, an internal coil of the electromagnetic suction device of the connecting device is electrified to generate magnetic force, and the lower section of steel casing is sucked; after the switch is closed, the internal coil of the electromagnetic suction device of the connecting device is powered off, and the demagnetization is realized when the magnetic force disappears, so that the connection with the lower section steel casing is disconnected.
10. The separable recycled steel casing according to claim 1, wherein positioning information of a positioner in the connecting device is in a three-dimensional coordinate network manner, and the positioning information can be transmitted to the remote controller end in real time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110977571.0A CN113863296A (en) | 2021-08-24 | 2021-08-24 | Separable recovery steel protects a section of thick bamboo and control system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110977571.0A CN113863296A (en) | 2021-08-24 | 2021-08-24 | Separable recovery steel protects a section of thick bamboo and control system |
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| CN113863296A true CN113863296A (en) | 2021-12-31 |
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| CN202110977571.0A Pending CN113863296A (en) | 2021-08-24 | 2021-08-24 | Separable recovery steel protects a section of thick bamboo and control system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116516957A (en) * | 2023-07-04 | 2023-08-01 | 中交第一航务工程局有限公司 | Construction method of detachable soft foundation area pile foundation steel casing |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN206956723U (en) * | 2017-04-30 | 2018-02-02 | 中铁十八局集团第五工程有限公司 | A kind of split type steel pile casting structure for pile foundation |
| CN110130347A (en) * | 2019-04-30 | 2019-08-16 | 福建路港（集团）有限公司 | Intelligent positioning guiding device, method, project management method for pile foundation construction |
| CN211713956U (en) * | 2019-11-26 | 2020-10-20 | 浙江大学城市学院 | Underwater cast-in-situ bored pile steel casing mounting device |
| US20210301490A1 (en) * | 2018-07-23 | 2021-09-30 | Fundex Equipment B.V. | Pile installation system |
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2021
- 2021-08-24 CN CN202110977571.0A patent/CN113863296A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206956723U (en) * | 2017-04-30 | 2018-02-02 | 中铁十八局集团第五工程有限公司 | A kind of split type steel pile casting structure for pile foundation |
| US20210301490A1 (en) * | 2018-07-23 | 2021-09-30 | Fundex Equipment B.V. | Pile installation system |
| CN110130347A (en) * | 2019-04-30 | 2019-08-16 | 福建路港（集团）有限公司 | Intelligent positioning guiding device, method, project management method for pile foundation construction |
| CN211713956U (en) * | 2019-11-26 | 2020-10-20 | 浙江大学城市学院 | Underwater cast-in-situ bored pile steel casing mounting device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116516957A (en) * | 2023-07-04 | 2023-08-01 | 中交第一航务工程局有限公司 | Construction method of detachable soft foundation area pile foundation steel casing |
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