RU2664835C2 - Device for protection of hydrotechnical and bridge structures from floating trees - Google Patents

Abstract

FIELD: construction.

SUBSTANCE: invention relates to the field of hydrotechnical and environmental construction, hydrology, bridge construction and can be used to protect hydrotechnical, ship-lifting and bridge structures, prevention of emergencies and possible flooding of adjacent areas due to overlapping culverts and apertures by floating trees, driftwood and bushes. Device for protecting hydrotechnical and bridge structures from floating trees includes a longitudinal reinforced concrete beam, on which cross-shaped reinforced concrete beams 2 are arranged. At the base of the cross-shaped reinforced concrete beam 2, T-beams 3 are made. When the cross-shaped reinforced concrete beams 2 are applied to loose, alluvial and silty soils, at the base of the t-beam 3 metal rods are made.

EFFECT: proposed device will provide trouble-free operation of hydrotechnical and bridge structures, exclude the emergence of emergency situations.

1 cl, 4 dwg

Description

The invention relates to the field of hydraulic engineering and environmental construction, hydrology, bridge building. It can be used to protect hydraulic engineering, ship-lifting and bridge structures, to prevent emergencies and possible flooding of adjacent territories due to the closure of culverts and spans with floating trees, fins and shrubs.

A device for collecting floating debris (SU 950588, publ. 08/15/1982, Bull. No. 30), containing a frame with a garbage bin attached to it, and also a beam mounted on the bow of the vessel, at the end of which a frame with a garbage bin is hung, telescopic rods, articulated to the hull.

The disadvantage of this technical solution is the need for constant use of watercraft to collect floating objects, as well as the inability to collect trees, stumps, shrubs, fins (reeds and cattail) using a waste bin. In addition, the use of a metal waste bin on a moving vessel will result in fish getting into it.

A known method of cleaning riverbeds near bridges (RU 2533912, publ. 11/27/2014, bull. No. 33), including the device of blocking and regulating structures in the form of inclined along the course of the pile rows of metal pipes, rails or concrete piles.

The disadvantage of the above method is the complexity of the work of driving metal pipes, rails and concrete piles at an angle, as well as the inability to detain small bushes and fins.

There is a method of cleaning, deepening and straightening the river channel (RU 2450101, publ. 05/10/2012, Bull. No. 13), including the construction of blocking structures with culverts in the river channel, the accumulation of water in ponds and reservoirs above the locations of blocking structures by opening culverts holes in structures. Partitioning structures are created in the winter by freezing ice in the depressions created in autumn in silty places. The culvert is the space under the ice. In this case, the ice floe is shifted by the flow of water up to the stop in the ground and rises in height from the bottom. The ice floe creates an accumulation of water by the volume and height of the water column upstream. In places where the river made steep convolutions, a recess is made at the entrance with the approach towards the straightening of the channel, with the calculation of the blocking of the ice by the intensive channel towards the old channel.

The disadvantages of this method is that the creation of blocking structures is preceded by a lengthy preparation process - in the fall, depressions are performed in silted places, and in winter it is necessary to freeze the ice, which in most cases is impossible. In addition, the above method is seasonal.

The closest technical solution is a device for protecting bridges from floating trees (RU 2560616, publ. 03.20.2015, Bull. No. 23), including a wall made in the form of cross-shaped reinforced concrete beams with holes mounted on a longitudinal beam at a distance, or T- shaped reinforced concrete beams mounted on a longitudinal reinforced concrete beam with holes at distances.

The main disadvantage of the prototype presented is the impossibility of the device retaining small floating debris in the form of reeds and cattails, as well as the insufficient stability of the structure, the possibility of shear (especially when holding trees and stumps) and deformation.

The aim of this invention is the protection of hydraulic and bridge structures from floating trees, shrubs, fins and other large debris.

The tasks to be solved by the claimed invention is directed:

- reliable protection of hydraulic and bridge structures from backwater by floating trees, fins, etc .;

- exception clogging bridge spans and culverts of hydraulic structures;

- retention of floating debris by the device.

The technical result of the claimed invention is the ability of the device to detain floating trees, shrubs, fins and other large objects, protecting bridge spans and culverts from clogging and, as a result, preventing emergencies.

The technical result is achieved due to the device at the base of the cross-shaped reinforced concrete beam of the T-beams, contributing to increased stability of the structure, as well as in the device along the entire length of the T-beams of the spikes of metal rods. When arranging cruciform reinforced concrete beams on loose, alluvial and silty soils, metal rods are made at the base of the T-beam.

The invention is illustrated by the following drawings: FIG. 1 - plan of location of protective structures; FIG. 2 - cross-shaped reinforced concrete beam with T-beams at the base; FIG. 3 - T-beam with metal rods; FIG. 4 - deformation of the cross-shaped beam in the case of settlement (deformation) of the base.

The numbers in the drawings indicate:

1 - longitudinal reinforced concrete beam of the base;

2 - cruciform reinforced concrete beam;

3 - T-beam base;

4 - metal rods.

A device for protecting hydraulic structures and bridge structures from floating trees is as follows (Fig. 1 - Fig. 3).

Above the maximum water level in the river, crosswise reinforced concrete beams 2 are arranged on the longitudinal reinforced concrete beam of the base 1 (through the estimated distance Δl, m), on which, to avoid precipitation, T-beams 3 are welded to the base, which increase the overall stability of the structure. When arranging cross-shaped reinforced concrete beams on loose, alluvial and silty soils, metal rods 4 are made at the base of the T-beam (to provide additional stability).

The presence of T-beams at the base of the structure avoids settlement (Δh) of the structure (Fig. 4), which will lead to a decrease in the height of the structure, i.e. failure to comply with design decisions to calculate the required height, thereby the device will not be able to delay floating debris. In addition, an increase in the area of the base of the structure (due to the implementation of T-beams) helps to reduce pressure on the soil of the base, excluding its deformation. The presence of metal rods at the base of the T-beam allows additional stability on loose, alluvial and silty soils.

The use of the developed device will prevent clogging of bridge spans and culverts of hydraulic structures with floating debris, thereby ensuring their trouble-free operation, and eliminating emergencies.

Claims (2)

1. A device for protecting hydraulic structures and bridge structures from floating trees, including a longitudinal reinforced concrete beam, on which cross-shaped reinforced concrete beams are arranged, characterized in that T-beams are made at the base of the cross-shaped beam. 2. The device according to claim 1, characterized in that when the cross-shaped reinforced concrete beams are installed on loose, alluvial and silty soils, metal rods are made at the base of the T-beam.

Images