CN212247842U

CN212247842U - Induced pier of rivers impact

Info

Publication number: CN212247842U
Application number: CN202020766752.XU
Authority: CN
Inventors: 袁志刚; 范雲鹤; 郑晓龙; 李晓园
Original assignee: China Railway Eryuan Engineering Group Co Ltd CREEC
Current assignee: China Railway Eryuan Engineering Group Co Ltd CREEC
Priority date: 2020-05-11
Filing date: 2020-05-11
Publication date: 2020-12-29
Anticipated expiration: 2030-05-11

Abstract

The utility model discloses an induced pier of rivers impact contains at least one and lures the stake, the upstream face of pier is located to the induced stake, the induced stake is used for blockking the rivers, the height that lures the stake is greater than design flood level elevation, adjacent two interconnect between the induced stake. This device sets up the induction stake starting with the mechanism of local scouring around the pier for under the various water level circumstances below the design flood level elevation, can both effectively produce the vortex flow and dissipate rivers, obstruct rivers and floater direct impact pier, effectively play the effect of scour prevention, can not destroy the original structure of pier body, reduce the pier anti-scouring design degree of difficulty, both be applicable to the protection of newly-built pier, also be applicable to the complementary protection of having built the pier, moreover, the steam generator is simple in structure, and convenient for construction.

Description

Induced pier of rivers impact

Technical Field

The utility model relates to a bridge engineering technical field, in particular to induced pier of rivers impact.

Background

Scouring is one of important factors causing bridge diseases, and partial scouring of bridge foundations poses serious threats to normal operation of bridge and culvert traffic infrastructures. Bridge foundation scour damage often occurs suddenly without prior warning and is difficult to monitor during flooding.

At present, the traditional pier protection measures are divided into active protection and passive protection, the active protection starts from controlling water flow so as to reduce the motive power of scouring, and the passive protection changes the characteristics of scouring objects and improves the anti-scouring capability of riverbeds. However, the scouring protection mode at home and abroad at present is mainly passive protection, the cost and labor are increased due to passive measures, and water damage caused by local scouring can occur when a repair task cannot be completed regularly. The Chinese patent CN103243639A discloses a ring wing type pier with a protection function, wherein an impingement baffle arranged outside the pier can effectively block the submerged water flow from the upstream face of the pier, change the size and direction of the submerged water flow and weaken the erosion action of the water flow on the foundation. This protector that ring wing formula pier adopted belongs to the initiative protection, but its direction isoparametric that can not directly adjust the impingement plate apart from the riverbed distance and impingement plate to flood season and non-flood season wait different moments, the effect of device and impingement plate are relevant apart from submarine position, and when rivers direction or depth of water change, its protective effect will largely discount.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the above-mentioned not enough of the pier that lacks under the different water level condition and can both effectively prevent scouring among the prior art, provide an induced pier of water impact.

In order to achieve the above object, the present invention provides the following technical solutions:

the utility model provides an induced pier of rivers impact, contains at least one and induces the stake, the upstream face of pier is located to the induced stake, the induced stake is used for blockking the rivers, the height that highly is greater than design flood level elevation of induced stake, adjacent two interconnect between the induced stake.

Adopt an induced pier of water current impact, set up the induced stake from the mechanism that local erodees around the pier is starting to make under the various water level condition below design flood level elevation, can both effectively produce the vortex flow and dissipate rivers, obstruct rivers and floater direct impact pier, effectively play the effect of scour prevention, adjacent two interconnect between the induced stake effectively avoids toppling to the original structure of pier body can not destroyed in the setting of induced stake, reduces the pier anti-scouring design degree of difficulty, both is applicable to newly-built protection, also is applicable to the complementary protection of building the pier, simple structure, construction convenience.

Preferably, the inducing piles are connected with the bridge piers through cross beams, and the adjacent two inducing piles are connected through the cross beams.

Further improve the antidumping ability of the guide pile.

Further preferably, the end face of the cross beam is connected with the side face of the pier through a mortise-tenon structure, the bottom face of the cross beam is connected with the top face of the inducing pile through a mortise-tenon structure, and every two adjacent inducing piles are connected through corresponding mortise-tenon structures on the end face of the cross beam.

Further preferably, the guide piles and the cross beams are both prefabricated reinforced concrete members.

By adopting the arrangement mode, the assembly is quick, the engineering quality can be effectively improved, the construction period is shortened, the cost is reduced, the operation environment is improved, the industrialization degree is improved, and the later maintenance or the replacement is convenient.

Preferably, the buried depth of the induction pile is greater than that of the pier.

Further preferably, the buried depth of the induction pile is 10-15 m.

Preferably, the distance between the pier and the induction pile closest to the pier is 2-3m, so that the blocking effect is guaranteed.

Preferably, all the induction piles are arranged at intervals along the water flow direction, and the distance between every two adjacent induction piles is 2-3 m.

Preferably, the inductive pile is cylindrical.

To sum up, compare with prior art, the beneficial effects of the utility model are that:

1. adopt an induced pier of water current impact, set up the induced stake from the mechanism that local erodees around the pier is starting to make under the various water level condition below design flood level elevation, can both effectively produce the vortex flow and dissipate rivers, obstruct rivers and floater direct impact pier, effectively play the effect of scour prevention, adjacent two interconnect between the induced stake effectively avoids toppling to the original structure of pier body can not destroyed in the setting of induced stake, reduces the pier anti-scouring design degree of difficulty, both is applicable to newly-built protection, also is applicable to the complementary protection of building the pier, simple structure, construction convenience.

Description of the drawings:

fig. 1 is a schematic structural view of an induced pier for preventing water current impact according to example 1;

fig. 2 is a structural plan view of an induced pier for preventing water current impact according to example 1.

The labels in the figure are: 1-induced pile, 2-bridge pier and 3-beam.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. However, it should not be understood that the scope of the above-mentioned subject matter is limited to the following embodiments, and all the technologies realized based on the present invention are within the scope of the present invention.

Example 1

An induced pier of rivers impact, an induced pier of rivers impact contains at least one and lures stake 1, lure stake 1 and locate pier 2's upstream face, the cross sectional dimension who lures stake 1 is confirmed according to the design requirement, lure stake 1 and be used for blockking rivers, lure stake 1 highly be greater than design flood level elevation, adjacent two it is interconnect between 1 to lure stake.

Specifically, as shown in fig. 1-2, the present embodiment includes two cylindrical inducing piles 1, the inducing piles 1 are arranged at intervals along the water flow direction, the burial depth of the inducing pile 1 is greater than the burial depth of the pier 2, and preferably, the burial depth of the inducing pile 1 is 10-15 m.

Pier 2 and the nearest apart from the interval of inducing stake 1 is 2-3m, adjacent two it connects to induce stake 1 through crossbeam 3, it is connected through crossbeam 3 with pier 2 to induce stake 1, connect two promptly the crossbeam 3 of inducing stake 1 with crossbeam 3 can adopt between inducing stake 1 and pier 2 is the crossbeam component, also can adopt a crossbeam 3 will pier 2 and all it connects to induce stake 1, it is prefabricated reinforced concrete component to induce stake 1 and crossbeam 3.

The end face of the cross beam 3 is connected with the side face of the pier 2 through a mortise-tenon joint structure, the bottom face of the cross beam 3 is connected with the top face of the inducing pile 1 through a mortise-tenon joint structure, and the inducing pile 1 is connected with the end face of the cross beam 3 through a corresponding mortise-tenon joint structure. If 2 sides of pier are equipped with the tenon, the terminal surface of crossbeam 3 has the recess, the bottom surface of crossbeam 3 has the recess, the top surface of inducing stake 1 has the tenon, is equipped with tenon and recess on the 3 terminal surfaces of two adjacent crossbeams that interconnect respectively, is convenient for carry out standard processing to inducing stake 1 and crossbeam 3, through tenon and recess adaptation connection form tenon fourth of the twelve earthly branches structure, of course the position of recess and tenon can be exchanged.

The cross beam 3 between the pier 2 and the inducing pile 1 can also be connected between the side surface of the pier 2 and the side surface of the inducing pile 1, and the cross beam 3 between two adjacent inducing piles 1 can also be connected between the side surfaces of the two inducing piles 1, as shown in fig. 2.

Adopt an induced pier of water current impact, set up the induced stake from the mechanism that local erodees around the pier is starting to make under the various water level condition below design flood level elevation, can both effectively produce the vortex flow and dissipate rivers, obstruct rivers and floater direct impact pier, effectively play the effect of scour prevention, adjacent two interconnect between the induced stake 1 effectively avoids toppling over to the original structure of pier body can not destroyed in the setting of induced stake, reduces the pier anti-scouring design degree of difficulty, both is applicable to newly-built protection, also is applicable to the complementary protection of pier of having built, simple structure, construction convenience.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides an induced pier of rivers impact, its characterized in that contains at least one and induces stake (1), the upstream face of pier (2) is located in induced stake (1), induced stake (1) is used for blockking the rivers, the height of induced stake (1) is greater than design flood level elevation, adjacent two interconnect between induced stake (1).

2. Pier according to claim 1, characterized in that the inductive piles (1) are connected to the pier (2) by means of cross beams (3), two adjacent inductive piles (1) being connected by means of a cross beam (3).

3. The pier according to claim 2, wherein the end surfaces of the cross beams (3) are connected with the side surfaces of the pier (2) through a mortise and tenon joint structure, the bottom surfaces of the cross beams (3) are connected with the top surfaces of the induced piles (1) through a mortise and tenon joint structure, and two adjacent induced piles (1) are connected through corresponding mortise and tenon joint structures of the end surfaces of the cross beams (3).

4. Pier according to claim 2, characterized in that the guide piles (1) and the cross beams (3) are both prefabricated reinforced concrete elements.

5. The pier according to any one of claims 1 to 4, wherein the depth of the guiding pile (1) is greater than the depth of the pier (2).

6. The pier according to claim 5, wherein the depth of the guiding pile (1) is 10-15 m.

7. The bridge pier according to any one of claims 1 to 4, characterized in that the distance between the bridge pier (2) and the nearest inductive pile (1) is 2-3 m.

8. The pier according to any one of claims 1 to 4, wherein all the induction piles (1) are arranged at intervals in the water flow direction, and the distance between every two adjacent induction piles (1) is 2-3 m.

9. Pier according to any of claims 1 to 4, characterized in that the guide piles (1) are cylindrical.