CN212405284U - A sand flow uninstallation forced landing device that is used for existing building pile foundation engineering to cut a pile and rectifies a deviation - Google Patents
A sand flow uninstallation forced landing device that is used for existing building pile foundation engineering to cut a pile and rectifies a deviation Download PDFInfo
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- CN212405284U CN212405284U CN202020706659.XU CN202020706659U CN212405284U CN 212405284 U CN212405284 U CN 212405284U CN 202020706659 U CN202020706659 U CN 202020706659U CN 212405284 U CN212405284 U CN 212405284U
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Abstract
The utility model discloses a drift sand unloading forced landing device for deviation correction of pile cutting of existing building pile foundation engineering, which comprises a baffle component for baffle at the pile body cut-off and a sand conveying component for filling drift sand into the pile body cut-off; enclose fender subassembly detachable and install on the lower part pile body of cutting off the department, and its height is greater than the height of pile body cutting off the department, just it is equipped with the hole that leaks sand on the fender subassembly to enclose. The sand conveying component fills dry sand at the cut-off position to support the upper pile body, and meanwhile, sand flows out and is unloaded from the sand leaking hole under the action of the load of the upper pile body, so that the upper pile body slowly sinks to be forced to descend, and the purpose of correcting the deviation is achieved. The device simple structure, the controllability is strong, and the precision is high, fully guarantees the structural safety of building, has saved the cost that the building cut the stake and rectifies a deviation greatly, and is applicable to various pile foundation engineering, has good using value.
Description
Technical Field
The utility model relates to a device is forced to fall in quicksand uninstallation that is used for existing building pile foundation engineering to cut a pile to rectify.
Background
Pile cutting is a common method for deviation correction of existing building pile foundation engineering, and the principle of the method is that under the condition that the overall safety of a building is guaranteed, piles on the side with the higher height of a house are symmetrically cut in batches, so that the vertical load of the uncut piles of the house on the side is increased, the uncut piles are forced to be accelerated to settle, and the house is enabled to be integrally tilted towards the higher side. In order to ensure the overall safety of a building, the existing pile cutting deviation rectifying method is that a counter-force bearing platform is firstly arranged at the position of a pile body needing to be cut, then a jack is arranged on the bearing platform, the load of the part of the pile needing to be cut is unloaded by the jack, then the pile is cut, the load of the pile is borne by the jack at the moment, and the jack is required to be gradually loosened to sink the building during deviation rectification so as to achieve the purpose of deviation rectification. Because the load of the pile top is indirectly transferred to the original pile by the jack, the structure safety risk is high, the height of the jack which is released each time is difficult to control, the method not only takes time, is long and has low efficiency, but also has poor controllability and low precision, and particularly, the construction cost of cutting off each pile is huge, thereby greatly increasing the cost of pile cutting and deviation rectification. In addition, because the existing pile cutting deviation rectifying method needs to be firstly used for manufacturing a bearing platform, and then upper load is indirectly transmitted to the original pile through a jack, a large number of prestressed pipe piles are adopted in the construction engineering piles in the actual engineering, and the bearing platform is manufactured on the side surface of each prestressed pipe pile, so that the difficulty is high, the cost is higher, and certain structural safety risk exists.
SUMMERY OF THE UTILITY MODEL
To the problem that exists, the utility model provides a quicksand uninstallation forced landing device and application method for existing building pile foundation engineering cuts pile and rectifies a deviation, the method of rectifying a deviation improves to current cutting pile, the pile body height that will compel to descend is once only cut off, and at the filling quicksand of cut off department, with the upper portion load through the direct transmission of sand bed to original stake, the speed of compelling to descend is controlled through the lapse of sand, precision and vertical displacement height, adopt original stake to increase the cross-section and connect the pile structure and resume its connection in cut off department when reaching the design requirement of rectifying a deviation. The method does not need to make a bearing platform to directly cut the pile, is suitable for various pile foundation projects, is particularly convenient for prestressed pipe pile projects, greatly saves the cost of pile cutting and deviation correction, and further ensures the structural safety of buildings. The specific technical scheme is as follows:
a drift sand unloading forced landing device for deviation correction of pile cutting of existing building pile foundation engineering comprises a barrier component for blocking at the pile body cutting position and a sand conveying component for pouring drift sand into the pile body cutting position; enclose fender subassembly detachable and install on the lower part pile body of truncation department, and its height is greater than the height that the pile body was truncated, just it is equipped with the hole that leaks sand on the fender subassembly to enclose.
In the drift sand unloading forced landing device for pile cutting deviation rectification of the existing building pile foundation engineering, the enclosure assembly is an inverted table-shaped cylinder made of metal or non-metal materials; the sand leakage holes are distributed in the same horizontal plane at the lower part of the enclosure assembly.
The quicksand unloading forced landing device for pile cutting deviation correction of the existing building pile foundation engineering comprises a sand conveying pipe and a sand loading funnel, wherein one end of the sand conveying pipe is communicated with a pile body cut-off part in the enclosure assembly, and the other end of the sand conveying pipe is connected with the bottom of the sand loading funnel so as to fill sand in the pile body cut-off part.
According to the quicksand unloading forced landing device for pile cutting deviation rectification of the existing building pile foundation engineering, the sand leakage hole is provided with the control valve for controlling the outflow speed of sand.
Preferably, the sand leakage holes are four and are circular holes or square holes; the control valve is a baffle plate rotating around a shaft or pushing and pulling.
Preferably, the drift sand unloading forced landing device for pile cutting deviation correction in existing building pile foundation engineering comprises a valve seat fixed on the edge of the sand leaking hole and a valve plate installed on the valve seat and used for blocking the sand leaking hole and controlling the sand leaking speed.
Still further preferably, in the quicksand unloading forced landing device for pile cutting deviation rectification in existing building pile foundation engineering, the valve plate is provided with a handle.
The sand flow unloading forced landing device for pile cutting deviation rectification of the existing building pile foundation engineering is characterized in that the enclosure assembly is made of iron sheets or soft plastics and is provided with an openable enclosure opening.
Preferably, in the quicksand unloading forced landing device for pile cutting deviation rectification in existing building pile foundation engineering, the sand conveying pipe is a soft plastic pipe and is provided with a joint convenient to lengthen.
The drift sand unloading forced landing device for pile cutting deviation correction of the existing building pile foundation engineering comprises the following steps:
1) pile cutting: determining the pile cutting length according to actual deviation correcting requirements, and cutting the length of the pile body to be cut off at one time through a pile cutting machine;
2) sand filling: installing the enclosure assembly on the truncated lower pile body, slowly extracting the truncated pile body from the enclosure opening, and simultaneously loading quicksand into the truncated position of the pile body from the other side through the sand conveying assembly;
3) forced landing: when the pile body to be cut is completely drawn out and the cut part of the pile body is filled with quicksand, a control valve on a sand leakage hole of the enclosure assembly is opened to control the outflow speed of the sand and the settling speed of the cut pile;
4) pile body recovery: when the forced landing height of the cut pile body meets the requirement, high-strength reinforcing materials are injected into the cut part of the pile body to connect the upper pile body and the lower pile body together, and the original pile is connected and recovered at the cut part by adopting a pile connecting structure with an enlarged cross section, so that the whole pile cutting deviation rectifying process is completed.
The utility model discloses the beneficial effect who possesses as follows:
the utility model realizes the one-time cutting of the height of the pile body needing forced landing by filling quicksand at the cutting part; and then the speed, the precision and the height of forced landing are controlled by controlling the passing speed of the quicksand. The utility model discloses the method has saved the cost of cutting the stake greatly and rectifying, improves simultaneously by a wide margin and cuts the stake efficiency of construction, has also further guaranteed the safety of building when improving the precision of cutting the stake and rectifying. Additionally, the utility model discloses the device is simple, but reasonable easy going, and the application effect that reaches is showing very also, has very good application prospect and spreading value. In addition, by using quicksand for unloading, gravel can level saw marks generated on a cut surface when the pile is cut, upper pile bodies and lower pile bodies at the cut position can be directly connected through a sand layer, upper load is transferred to lower pile bodies, the lower pile bodies can directly bear the upper load, the step that a bearing platform is required to be firstly made in the traditional pile cutting process, and then the upper load is indirectly transferred to the original pile through a jack is omitted, the process is further simplified, and the pile cutting rectification cost is saved; moreover, the utility model discloses but device reuse further improves the economic nature that the pile cutting was rectified. Therefore, the utility model discloses very good practical value and application prospect have.
Drawings
FIG. 1 is a schematic structural view of the drift sand unloading forced landing device for pile cutting deviation correction of the existing building pile foundation engineering of the present invention;
FIG. 2 is a schematic structural view of the enclosure assembly of the present invention;
fig. 3 is a schematic structural diagram of the control valve of the present invention;
fig. 4 is another schematic structural diagram of the control valve of the present invention.
In the figure: 1. the cut-off part of the pile body; 101. a lower pile body; 102. pile body mounting; 103. a truncated pile body; 2. an enclosure assembly; 201. an enclosure opening; 3. a sand transporting assembly; 301. a sand conveying pipe; 302. filling a sand funnel; 303. a joint; 4. a sand leakage hole; 5. a control valve; 501. a valve seat; 502. a valve plate; 503. and (4) a handle.
Detailed Description
The technical solution of the present invention will be described more fully with reference to the accompanying drawings and examples, it is to be understood that the embodiments described are merely illustrative of the presently preferred embodiments, rather than restrictive, and that various changes, modifications and equivalents may be resorted to by those skilled in the art. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical substance of the present invention still belong to the protection scope of the technical solution of the present invention.
The embodiment is a drift sand unloading forced landing device for deviation correction of pile cutting of existing building pile foundation engineering, and a method for forced landing of pile cutting, wherein the drift sand unloading forced landing device comprises a barrier component 2 for blocking a pile body cut-off part 1 and a sand conveying component 3 for filling drift sand into the pile body cut-off part 1, as shown in figures 1 to 4; enclose fender subassembly 2 detachable and install on the lower part pile body 101 of truncation department, and its height is greater than the height that the pile body was truncated, just it is equipped with hourglass sand hole 4 on the fender subassembly 2 to enclose. The enclosure assembly 2 encloses and blocks at the cut-off part 1 of the pile body, the sand conveying assembly 3 fills dry sand at the cut-off part to support the upper pile body 102, meanwhile, vertical load is applied to the lower pile body 101, and the sand flows out and is unloaded through a sand leakage hole 4 in the enclosure assembly 2 under the action of the load of the upper pile body, so that the upper pile body 102 slowly sinks to force to descend, and the deviation rectification design value is achieved. The device has the advantages of simple structure, outstanding obtaining effect, capability of controlling the speed, precision and height of forced landing of the cut pile, capability of saving the step of restoring the load and elastic modulus of the lower pile body by an additional device in the traditional cut pile, great simplification of the process and saving of the cost for deviation correction of the cut pile.
In this embodiment, the enclosure assembly 2 is an inverted table-shaped cylinder made of a metal or non-metal material; the sand leakage holes 4 are distributed in the same horizontal plane at the lower part of the enclosure assembly 2. The sand leakage holes 4 are preferably four in shape, and can be round, square or other shapes. In order to control the sand flowing speed conveniently, a control valve 5 is arranged on the sand leaking hole 4 to control the sand flowing speed. The control valve 5 is a baffle plate rotating or pushing and pulling around a shaft, and structurally comprises a valve seat 501 fixed on the edge of the sand leakage hole 4 and a valve plate 502 arranged on the valve seat 501 and used for blocking the sand leakage hole 4 and controlling the sand leakage speed, as shown in fig. 3 and 4, the sand leakage speed is controlled by rotating or pulling the valve plate 502 to control the sand leakage speed, so that the sand outflow speed is controlled, and a handle 503 is further arranged on the valve plate 502 for convenient operation. Besides the two forms proposed in the present embodiment, the sand leakage hole 4 and the control valve 5 can also be provided in other forms with equivalent effects. In addition, the control valve 5 is used for controlling the quicksand speed to achieve the purpose of accurately controlling the speed and the height of the pile cutting forced descent, so that the control valve can be improved by more advanced technical means, such as increasing the design of a flow valve and the like.
In this embodiment, the sand transportation assembly 3 includes a sand transportation pipe 301 and a sand filling funnel 302, one end of the sand transportation pipe 301 is connected to the pile body cut-off 1 in the enclosure assembly 2, and the other end is connected to the bottom of the sand filling funnel 302, so as to fill sand in the pile body cut-off 1. In order to adapt to different construction distances, the sand conveying pipe 301 is provided with a joint 303 convenient to lengthen, and meanwhile, in order to facilitate construction and carrying of storage boxes, a soft plastic pipe is preferably used for the sand conveying pipe 301.
In addition, in order to facilitate construction and disassembly and assembly, the drift sand unloading forced landing device for pile cutting deviation correction of the existing building pile foundation engineering in the embodiment is preferably made of iron sheet or soft plastic, and is provided with an openable enclosure opening 201, so that the enclosure opening 201 can be conveniently disassembled, meanwhile, the cut pile body part can be taken out from the opening, and meanwhile, sand is filled from the other side, and the safety of a building is fully ensured.
The drift sand unloading forced landing device for pile cutting deviation rectification of the existing building pile foundation engineering comprises the following steps:
1) pile cutting: the pile cutting length is determined according to actual deviation rectifying requirements, and the length of the pile body 103 to be cut is cut at one time through a pile cutting machine. Unlike traditional pile cutting mode, the pile cutting method needs to make bearing platform and transfer the upper load to the original pile indirectly via the jack. Not only greatly improve the efficiency of construction, moreover great reduction the cost of cutting the stake and rectifying.
2) Sand filling: the enclosure assembly 2 is installed on the truncated lower pile 101 and the truncated pile 103 is slowly extracted from the enclosure opening 201 while the sand transporting assembly 3 loads the quicksand from the other side into the pile truncation 1. The step further ensures the safety of the deviation rectifying building and provides more effective support for the application of drift sand pile cutting deviation rectification.
3) Forced landing: when the pile body 103 to be cut is completely drawn out and the cut part 1 of the pile body is filled with quicksand, the control valve 5 on the sand leaking hole 4 of the enclosure assembly 2 is opened to control the outflow speed of the sand and the settling speed of the cut pile. Compared with the traditional pile cutting deviation rectifying mode, the deviation rectifying precision is better controlled, and the effect is very outstanding.
4) Pile body recovery: when the forced landing height of the pile body to be cut off meets the requirement, a high-strength reinforcing material is injected into the cut-off part 1 of the pile body, for example: high-fluidity high-strength micro-expansion fine stone concrete or mortar is used for connecting the upper pile body 102 and the lower pile body 101 together, restoring the original pile at the cut part by adopting a pile extension structure with an enlarged cross section, namely binding reinforcing steel bars at the cut part of the original pile, pouring concrete, and further reinforcing the joint, thereby completing the whole pile cutting deviation rectifying process. The utility model discloses the method utilizes the drift sand uninstallation, and the gravel not only can make level and cut the kerf that produces on the section when cutting the stake, improves the stationarity of pile body coupling, can save the tradition moreover and cut the stake must be done earlier the cushion cap, passes through the indirect transmission of jack with the upper portion load again and to original stake, has further simplified the process of cutting the stake and rectifying and has saved the cost.
Generally, the utility model discloses the device is simple, but reasonable easy going, the utility model discloses the method improves by a wide margin and cuts a pile efficiency of construction simultaneously reduce cost by a wide margin, improves and cuts the safety of pile accuracy nature assurance building of rectifying simultaneously, has very good application prospect and spreading value.
Claims (9)
1. The utility model provides a device is forced to descend in quicksand uninstallation that is used for existing building pile foundation engineering to cut a pile to rectify, its characterized in that: comprises a barrier component (2) for blocking the cut-off part (1) of the pile body and a sand conveying component (3) for pouring quicksand into the cut-off part (1) of the pile body; enclose fender subassembly (2) detachable and install on lower part pile body (101) of truncation department, and its height is greater than the height that the pile body was truncated, just it is equipped with hourglass sand hole (4) to enclose fender subassembly (2).
2. The drift sand unloading forced landing device for deviation rectification of pile cutting of existing building pile foundation engineering according to claim 1, wherein: the enclosure assembly (2) is an inverted table-shaped cylinder made of metal or nonmetal materials; the sand leakage holes (4) are distributed in the same horizontal plane at the lower part of the enclosure assembly (2).
3. The drift sand unloading forced landing device for deviation rectification of pile cutting of existing building pile foundation engineering according to claim 1, wherein: the sand conveying assembly (3) comprises a sand conveying pipe (301) and a sand filling funnel (302), one end of the sand conveying pipe (301) is communicated with the pile body cut-off part (1) in the enclosing and blocking assembly (2), and the other end of the sand conveying pipe is connected with the bottom of the sand filling funnel (302) so as to fill sand in the pile body cut-off part (1).
4. The drift sand unloading forced landing device for deviation rectification of pile cutting of existing building pile foundation engineering according to claim 1 or 2, wherein: and the sand leakage hole (4) is provided with a control valve (5) for controlling the outflow speed of sand.
5. The drift sand unloading forced landing device for deviation rectification of pile cutting of existing building pile foundation engineering according to claim 4, wherein: the number of the sand leakage holes (4) is four, and the four sand leakage holes are circular holes or square holes; the control valve (5) is a baffle plate rotating around a shaft or pushing and pulling.
6. The drift sand unloading forced landing device for deviation rectification of pile cutting of existing building pile foundation engineering according to claim 5, wherein: the control valve (5) comprises a valve seat (501) fixed on the edge of the sand leakage hole (4) and a valve plate (502) which is arranged on the valve seat (501) and is used for blocking the sand leakage hole (4) and controlling the sand leakage speed.
7. The drift sand unloading forced landing device for deviation rectification of pile cutting of existing building pile foundation engineering according to claim 6, wherein: the valve plate (502) is provided with a handle (503).
8. The drift sand unloading forced landing device for deviation rectification of pile cutting of existing building pile foundation engineering according to claim 2, wherein: the enclosure assembly (2) is made of iron sheet or soft plastic and is provided with an openable enclosure opening (201).
9. The drift sand unloading forced landing device for deviation rectification of pile cutting of existing building pile foundation engineering according to claim 3, wherein: the sand conveying pipe (301) is a soft plastic pipe and is provided with a joint (303) convenient to lengthen.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020706659.XU CN212405284U (en) | 2020-04-30 | 2020-04-30 | A sand flow uninstallation forced landing device that is used for existing building pile foundation engineering to cut a pile and rectifies a deviation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020706659.XU CN212405284U (en) | 2020-04-30 | 2020-04-30 | A sand flow uninstallation forced landing device that is used for existing building pile foundation engineering to cut a pile and rectifies a deviation |
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| CN212405284U true CN212405284U (en) | 2021-01-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111456123A (en) * | 2020-04-30 | 2020-07-28 | 江苏东南特种技术工程有限公司 | Quicksand unloading forced landing device and method for pile cutting deviation rectification of existing building pile foundation engineering |
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2020
- 2020-04-30 CN CN202020706659.XU patent/CN212405284U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111456123A (en) * | 2020-04-30 | 2020-07-28 | 江苏东南特种技术工程有限公司 | Quicksand unloading forced landing device and method for pile cutting deviation rectification of existing building pile foundation engineering |
| CN111456123B (en) * | 2020-04-30 | 2024-05-28 | 江苏东南特种技术工程有限公司 | Quicksand unloading forced landing device and method for pile cutting correction of existing building pile foundation engineering |
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