CN210066534U - Go deep into riverbed and consolidate device of pier - Google Patents
Go deep into riverbed and consolidate device of pier Download PDFInfo
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- CN210066534U CN210066534U CN201920489234.5U CN201920489234U CN210066534U CN 210066534 U CN210066534 U CN 210066534U CN 201920489234 U CN201920489234 U CN 201920489234U CN 210066534 U CN210066534 U CN 210066534U
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Abstract
The utility model provides a go deep into riverbed and consolidate device of pier, its characterized in that waits to consolidate the setting of the stand of pier and anti-skidding packing ring, the anti-skidding packing ring outside is provided with the reaction hoop and waits to consolidate the pier and together form the reaction system, the symmetrical downside of arranging at the reaction hoop of jack more than two, the distribution all around of reinforcing pipe sets up a plurality of stiffening pipes, the first and the last welding of multisection reinforcing pipe links to each other and goes deep into below the riverbed, reinforcing material is full of reinforcing pipe and waits to consolidate the space between the pier and the inner chamber of stiffening pipe. The utility model discloses utilize the bridge dead weight to provide the counter-force that the back up pipe pushed down, need not large-scale hoist and mount and counter-force equipment, need not temporary facilities such as large-scale complicated steel cofferdam, back up pipe, stiffening tube jointly set up realization technology and reinforced purpose, have realized that the vertical component of bridge below the riverbed that ordinary reinforcement technology can't realize consolidates, and whole reinforcement process need not the drainage, has greatly saved engineering cost.
Description
Technical Field
The utility model belongs to the civil engineering field, concretely relates to bridge reinforcement technique, especially a go deep into device that riverbed consolidated pier.
Background
Due to the upper load, water flow and other environmental effects, diseases of the underwater concrete structure of the pier are often serious and difficult to be found, for example: the underwater structure of the bridge is prone to various damage defects caused by high underwater static stress and fatigue stress, river water scouring, elutriation, abrasion, cavitation, freezing and thawing and erosion (chemical corrosion and electrochemical corrosion) in severe cold areas, ship collision, floating ice and earthquake attack, environmental loads (such as biological attachment) and working loads transmitted by the upper structure of the bridge.
For example, chinese patent CN 101575252a discloses a construction method of a steel cofferdam for reinforcing an underwater pier, wherein a hanging strip is installed on a beam body at the top of the pier to be reinforced to complete the installation of a steel frame, a crane is used to respectively hoist and splice the steel cofferdam in the transverse bridge direction and the longitudinal bridge direction one by one, a guide device is arranged on the inner wall of the steel cofferdam, a pulley set for sinking is installed on the steel frame and the steel cofferdam, and the pulley set for sinking is started to sink the steel cofferdam in place. When the method is used for construction, large-scale hoisting equipment is needed, traffic must be interrupted in the process, the traffic of the upper structure of the bridge is influenced, the social influence is large, after the pier is reinforced, other temporary facilities such as a steel cofferdam need to be dismantled, the process is complex, and the construction efficiency is greatly reduced.
The utility model provides a go deep into device that riverbed consolidated pier on the basis that does not harm former pier, quick convenient installation counterforce device, the segmentation pushes down reinforced pipe to the riverbed below, and later stage reinforced pipe need not to demolish, need not the drainage, and more traditional mode of consolidating, the efficiency of construction improves, and it is more excellent to consolidate the effect.
Disclosure of Invention
The utility model aims at providing a device for reinforcing piers by extending into a riverbed, which has the innovation points that compared with the traditional underwater pier, the device is more convenient and faster to reinforce, does not need large temporary facilities such as cofferdams and the like, does not need drainage in the reinforcing process, can extend to the depth below the riverbed, especially improves the bearing capacity of the piers below the riverbed, adopts subsection pressing, the dead weight of a bridge provides the counter force of pressing, does not need large-scale hoisting and counter-force equipment, a stiffening pipe fixed around the stiffening pipe ensures that the stiffening pipe can not be buckled and unstable when pressing down, increases the lateral rigidity and the bearing capacity of the stiffening pipe, and simultaneously, the stiffening pipe is connected with a high pressure water pump device to assist the sinking of the stiffening pipe, after sinking to the right place, the inner chamber of stiffening pipe pours into the reinforced material, has additionally improved the bearing capacity of structure, and counterforce device installation is dismantled conveniently, to the zero damage of former pier, has promoted the reinforcement effect greatly.
The technical scheme of the utility model is that: a device for reinforcing pier deep into riverbed comprises an anti-skid washer, a counterforce hoop, a jack, a top ring, a reinforcing pipe, a stiffening pipe, a reinforcing material and a high-pressure water pump device, the reinforcing pier reinforcing structure is characterized in that more than one layer of anti-skidding gasket is wrapped in a local area of the upper portion of a stand column of a pier to be reinforced, a reaction hoop and the pier to be reinforced are arranged on the outer side of the anti-skidding gasket to form a reaction system together, more than two jacks are symmetrically arranged on the lower side of the reaction hoop, an annular top ring is arranged close to the lower side of each jack, a reinforcing pipe is arranged on the lower side of the top ring, the center of each reinforcing pipe is consistent with the center of the pier to be reinforced, a plurality of stiffening pipes are distributed around the reinforcing pipes, a plurality of sections of the reinforcing pipes are welded end to end and penetrate into the river bed, a high-pressure water pump device is connected with the reinforcing pipes and the inner cavities of the stiffening pipes, and reinforcing materials are filled in the gaps between the reinforcing.
The reaction hoop is composed of two semi-circular arc-shaped flange plates fastened through bolts, the semi-circular arc-shaped flange plates are vertically welded with a plurality of stiffening ribs, and the section form of the reaction hoop is consistent with that of the pier to be reinforced.
The material of the anti-slip gasket is one of rubber, silica gel, a diamond sand strip, rubber and plastic fiber and geotextile.
The top ring is in a ring shape and is formed by splicing two circular rings, and the top ring is in lap joint with the top surface of the reinforcing pipe through a buckle.
The bottom end of the first section of the reinforcing pipe is in a blade foot shape, and the sections of the reinforcing pipe are connected through welding.
The stiffening pipes are welded on the peripheral outer surface of the reinforcing pipe in a distributed mode, and the diameter of each stiffening pipe is not larger than 1/10 of the reinforcing pipe.
The reinforcing material is one of underwater epoxy resin, underwater undispersed mortar, underwater epoxy resin mortar, underwater undispersed concrete and underwater epoxy resin concrete.
The utility model discloses the advantage is showing, has following apparent advantage:
(1) the dead weight of the bridge provides the counter force for pressing down the reinforcing pipe, and large-scale hoisting and counter-force equipment are not needed.
(2) Need not temporary facilities such as large-scale complicated steel cofferdam, the reinforced pipe not only plays the effect of template, can also regard as permanent reinforced material, produces the restraint effect to the core concrete of pier, has improved the bearing capacity and the deformability of consolidating the back pier greatly, and the installation of reaction hoop and dismantlement are convenient, through anti-skidding packing ring and bolt and wait to consolidate the pier fastening and form reaction unit, easy operation, it is little to the space requirement, it does not have the harm to treat simultaneously to consolidate the pier.
(3) The reinforced pipe is pressed down in sections, the stability of the reinforced pipe fixed on the outer side of the reinforced pipe is enhanced, buckling instability and damage of the reinforced pipe are avoided when the reinforced pipe is pressed down, large-scale hoisting equipment is omitted due to structural connection between the reinforced pipes, transportation and operation under different environments and spaces are facilitated, the reinforced pipe is prefabricated in advance according to design requirements, and the pier with any depth can be reinforced.
(4) The stiffening pipe is connected with the high-pressure water pump device, when the jack is pressed down, the high-pressure water flow in the stiffening pipe scours the soil layer, the effect that the auxiliary reinforcing pipe sinks is achieved, the lateral rigidity and the bearing capacity of the reinforcing pipe are increased, meanwhile, the stiffening pipe and the high-pressure water pump device are connected, the auxiliary reinforcing pipe sinks, after the stiffening pipe sinks in place, the inner cavity of the stiffening pipe is filled with reinforcing materials, and the bearing capacity of the structure is additionally improved.
(5) The reinforcing pipes and the stiffening pipes are deep below the riverbed, so that the pier reinforcement below the riverbed, which cannot be realized by the common reinforcement technology, is realized.
(6) The whole reinforcing process does not need drainage, and the construction cost is greatly saved.
Description of the drawings:
FIG. 1 is a flow chart of a construction process of a device for reinforcing a pier deep into a river bed;
FIG. 2 is a schematic view of an apparatus for reinforcing a pier deep into a river bed;
FIG. 3 is a schematic view of a device for reinforcing piers deep into a river bed to wrap an anti-slip gasket;
FIG. 4 is a schematic view of a counter-force hoop installed in a device for reinforcing a pier deep into a river bed;
FIG. 5 is a schematic view of a device for reinforcing a pier deep into a river bed, which is provided with jacks and a top ring;
FIG. 6 is a schematic view of a first reinforcing pipe section pressed down by a device for reinforcing a pier deep into a river bed;
FIG. 7 is a schematic view showing the downward pressing of the reinforcing pipes in abutment with a device for reinforcing a pier deep into a river bed;
FIG. 8 is a schematic structural view of the reinforced pier to be reinforced after the reinforcement is completed;
FIG. 9 is an exploded view of a reaction collar of a pier reinforcing apparatus penetrating into a river bed;
fig. 10 is a schematic view showing a structure of a reinforcing pipe of an apparatus for reinforcing a pier deep into a river bed;
fig. 11 is a schematic longitudinal sectional view of a first section of reinforcing pipe of an apparatus for reinforcing a pier deep into a river bed;
in all the drawings, 1 is a pier to be reinforced; 2 is an anti-slip gasket; 3 is a counter-force hoop; 31 is a semi-circular arc flange; 32 is a stiffening rib; 33 is a bolt; 4 is a jack; 5 is a top ring; 6 is a reinforcing pipe; 61 is a first section of reinforced pipe; 62 is a stiffening pipe; 7 is a reinforcing material; 8 is a riverbed; and 9 is a high-pressure water pump device.
The specific implementation mode is as follows:
in order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described with reference to the accompanying drawings. The utility model provides a device for reinforcing pier deep into riverbed, which comprises an anti-slip washer 2, a counter-force hoop 3, a jack 4, a top ring 5, a reinforcing pipe 6, a stiffening pipe 62, a reinforcing material 7 and a high pressure water pump device 9, and is characterized in that the local area of the upper part of a column of the pier 1 to be reinforced is wrapped with more than one layer of anti-slip washer 2, the outer side of the anti-slip washer 2 is provided with the counter-force hoop 3 which forms a counter-force system together with the pier 1 to be reinforced, more than two jacks 4 are symmetrically arranged at the lower side of the counter-force hoop 3, the annular top ring 5 is arranged at the lower side of the jack 4 closely, the reinforcing pipe 6 is positioned at the lower side of the top ring 5, the centers of the top ring 5 and the reinforcing pipe 6 are consistent with the center of the pier 1 to be reinforced, the periphery of the reinforcing pipe 6 is provided with a plurality of stiffening pipes 62, the multi-section pipes 6 are welded at the head and the tail and the, the reinforcing material 7 fills the space between the reinforcing pipe 6 and the pier 1 to be reinforced and the inner cavity of the stiffening pipe 62.
The reaction hoop 3 is formed by fastening two semi-circular arc-shaped flange plates 31 through bolts 33, the semi-circular arc-shaped flange plates 31 are vertically welded with a plurality of stiffening ribs 32, and the section form of the reaction hoop 3 is consistent with that of the pier 1 to be reinforced.
The material of the anti-skid gasket 2 is one of rubber, silica gel, a diamond sand strip, rubber and plastic fiber and geotextile.
The top ring 5 is in a ring shape and is formed by splicing two circular rings, and the top ring is in lap joint with the top surface of the reinforcing pipe 6 through a buckle.
The bottom end of the first section of the reinforcing pipe 61 is in a blade foot shape, and the sections of the reinforcing pipes 6 are connected through welding.
The stiffening pipes 62 are distributed and welded on the peripheral outer surface of the reinforcing pipe 6, and the diameter of the stiffening pipes 62 is not more than 1/10 of the reinforcing pipe 6.
The reinforcing material 7 is one of underwater epoxy resin, underwater undispersed mortar, underwater epoxy resin mortar, underwater undispersed concrete and underwater epoxy resin concrete.
In the implementation method, the utility model comprises the following steps:
A. cleaning the pier to be reinforced: polishing and cleaning the surface of a local area of the pier 1 to be reinforced, removing loose substances, and wiping the pier with alcohol or acetone solution;
B. wrapping the anti-slip gasket: more than one layer of anti-skid gaskets 2 are wrapped at the local area of the upper upright column of the pier 1 to be reinforced, and the height of each anti-skid gasket 2 is not less than that of each reaction hoop 3;
C. installing a counter-force hoop: assembling a counterforce hoop 3 on the outer surface of the anti-skid washer 2, fastening the counterforce hoop 3 through a bolt 33, clamping the anti-skid washer 2, and forming a counterforce system with the pier 1 to be reinforced;
D. installing a jack and a top ring: more than two jacks 4 are symmetrically arranged at the lower part of the counterforce hoop 3, an annular top ring 5 is arranged at the lower part of each jack 4, the top ring 5 is positioned between each jack 4 and the corresponding reinforcing pipe 6 and connected with the top end of the corresponding reinforcing pipe 6, and the center of the top ring is the same as the center of the pier 1 to be reinforced;
E. and (3) lowering a first section of reinforcing pipe: hoisting the first section of the reinforcing pipe 61 to a preset position, ensuring that the center of the first reinforcing pipe 61 is positioned on the axis of the pier 1 to be reinforced, ensuring that the diameter of the reinforcing pipe 6 is larger than that of the pier 1 to be reinforced, and arranging stiffening pipes 62 around the reinforcing pipe 6 in a distributed manner;
F. high-pressure washing: adopting a high-pressure water pump device 9 to wash the gaps between the stiffening pipes 62 and the reinforcing pipes 6 and the pier 1 to be reinforced with high pressure to assist sinking;
G. and (3) symmetrically pressing down: a structure consisting of a counterforce hoop 3, an antiskid gasket 2 and a pier 1 to be reinforced is used as a counterforce device, and the counterforce device is slowly and symmetrically pressed downwards through a jack 4, so that the reinforcing pipe section 6 is pressed into a riverbed 8;
H. unloading and resetting the jack: the jack 4 unloads the return oil and restores the original position;
I. and (3) butting the next section of reinforcing pipe: hoisting a next section of reinforcing pipe 6 at the center of the pier 1 to be reinforced, and tightly butting the next section of reinforcing pipe 6 with the previous section of reinforcing pipe 6, wherein stiffening pipes 62 arranged around the reinforcing pipe 6 are correspondingly connected one by one during butting, the inside is ensured to be communicated up and down, and the connecting seam is compact;
J. repeating the steps F to I, and pressing the sections until the reinforcement depth meets the specified requirement;
K. dismantling the counterforce device: after the reinforcement depth meets the requirement, the jack 4, the top ring 5, the counterforce hoop 3 and the anti-skid washer 2 are dismantled;
l, cleaning: continuously washing the gap between the reinforcing pipe 6 and the pier 1 to be reinforced and the inner cavity of the stiffening pipe 62 by using a high-pressure water pump device 9, and removing impurities such as sludge;
m, pouring a reinforcing material: pouring a reinforcing material 7 into a gap between the reinforcing pipe 6 and the pier 1 to be reinforced and an inner cavity of the stiffening pipe 62;
and N, finishing reinforcement: and after the reinforcing material 7 reaches the specified strength, finishing the reinforcement of the bridge pier penetrating into the riverbed 8.
Claims (7)
1. A device for reinforcing a pier deep into a riverbed comprises an anti-skidding gasket (2), a reaction hoop (3), jacks (4), a top ring (5), a reinforcing pipe (6), stiffening pipes (62), a reinforcing material (7) and a high-pressure water pump device (9), and is characterized in that a local area at the upper part of a stand column of the pier (1) to be reinforced is wrapped with more than one layer of anti-skidding gasket, the reaction hoop (3) is arranged at the outer side of the anti-skidding gasket (2) and forms a reaction system together with the pier (1) to be reinforced, more than two jacks (4) are symmetrically arranged at the lower side of the reaction hoop (3), an annular top ring (5) is arranged close to the lower side of the jacks (4), the reinforcing pipe (6) is arranged at the lower side of the top ring (5), the centers of the top ring (5) and the reinforcing pipe (6) are consistent with the center of the pier (1) to be reinforced, a plurality of stiffening pipes (, the bottom end of the first reinforcing pipe (61) is in a blade foot shape, the plurality of reinforcing pipes (6) are connected end to end in a welding mode and penetrate into the position below a riverbed (8), the high-pressure water pump device (9) is connected to a gap between each reinforcing pipe (6) and the pier (1) to be reinforced and an inner cavity of each stiffening pipe (62), and the reinforcing materials (7) are filled in the gap between each reinforcing pipe (6) and the pier (1) to be reinforced and the inner cavity of each stiffening pipe (62).
2. The device for reinforcing pier deep into river bed according to claim 1, wherein the reaction hoop (3) is composed of two semi-circular flanges (31) fastened by bolts (33), the semi-circular flanges (31) are vertically welded with a plurality of stiffening ribs (32), and the cross section of the reaction hoop (3) is consistent with that of the pier (1) to be reinforced.
3. The device for reinforcing pier penetrating into river bed according to claim 1, wherein the material of the anti-slip gasket (2) is one of rubber, silica gel, emery stick, rubber and plastic fiber, and geotextile.
4. The device for reinforcing pier penetrating into riverbed according to claim 1, wherein the top ring (5) is circular and is formed by splicing two circular rings, and the top ring is overlapped with the top surface of the reinforcing pipe (6) through a buckle.
5. A device for reinforcing pier penetrating into river bed as claimed in claim 1, wherein the reinforcing pipes (6) are connected by welding.
6. A device for reinforcing pier penetrating into river bed as claimed in claim 1, wherein said stiffening pipes (62) are distributed and welded to the peripheral outer surface of the reinforcing pipe (6), and the diameter of the stiffening pipes (62) is not greater than 1/10 of the reinforcing pipe (6).
7. The apparatus for reinforcing a pier deep into a river bed according to claim 1, wherein the reinforcing material (7) is one of underwater epoxy resin, underwater nondispersed mortar, underwater epoxy resin mortar, underwater nondispersed concrete and underwater epoxy resin concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920489234.5U CN210066534U (en) | 2019-04-09 | 2019-04-09 | Go deep into riverbed and consolidate device of pier |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920489234.5U CN210066534U (en) | 2019-04-09 | 2019-04-09 | Go deep into riverbed and consolidate device of pier |
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| CN210066534U true CN210066534U (en) | 2020-02-14 |
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| CN201920489234.5U Active CN210066534U (en) | 2019-04-09 | 2019-04-09 | Go deep into riverbed and consolidate device of pier |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112227188A (en) * | 2020-10-07 | 2021-01-15 | 代潇男 | Bridge leg depth limiter suitable for emergency rescue and disaster relief at breach of dam in yellow river water conservancy |
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2019
- 2019-04-09 CN CN201920489234.5U patent/CN210066534U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112227188A (en) * | 2020-10-07 | 2021-01-15 | 代潇男 | Bridge leg depth limiter suitable for emergency rescue and disaster relief at breach of dam in yellow river water conservancy |
| CN112227188B (en) * | 2020-10-07 | 2022-03-11 | 代潇男 | Bridge leg depth limiter suitable for emergency rescue and disaster relief at breach of dam in yellow river water conservancy |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Zhenjiang Heng An Civil Technology Co.,Ltd. Assignor: NANJING FORESTRY University Contract record no.: X2020320000368 Denomination of utility model: A device for strengthening bridge piers deep into river bed Granted publication date: 20200214 License type: Common License Record date: 20201212 Assignee: BEIJING JIUTONGQU TESTING TECHNOLOGY Co.,Ltd. Assignor: NANJING FORESTRY University Contract record no.: X2020320000367 Denomination of utility model: A device for strengthening bridge piers deep into river bed Granted publication date: 20200214 License type: Common License Record date: 20201212 Assignee: Hefei Shuang Dao run Highway Engineering Co.,Ltd. Assignor: NANJING FORESTRY University Contract record no.: X2020320000366 Denomination of utility model: A device for strengthening bridge piers deep into river bed Granted publication date: 20200214 License type: Common License Record date: 20201212 |
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| EE01 | Entry into force of recordation of patent licensing contract |