SU1497337A1 - Shore-protecting spur - Google Patents

Abstract

The invention relates to hydraulic construction, in particular, to river activity hydrotechnical structures of active action — spurs and dams, designed to protect river banks and land sites and structures located on them from erosion by water flows. The purpose of the invention is to increase the effectiveness of the spur. The shore spur contains blocks 1, made in the form of quadrangular prisms installed by an edge 2 in the opposite direction to flow 3. Blocks 1 form channels converging between them in a plan plan. Rows of blocks 1 form between themselves channels 5 directed towards the channel 6 and channels 7 directed towards the protected shore 8. Blocks 1 are made of two 9 elements interconnected by a hinge, one of which is not flooded and the other is flooded. With the passage of channel-forming and flood waters, the location of the blocks with respect to the flow direction with the formation of a system of channels 4 between them contributes to an increase in the capacity of the structure, interception and transit passage through the construction of sediments and floating objects. 2 hp ff, 3 ill.

Description

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The invention relates to hydraulic engineering construction, in particular, to river activity hydrotechnical structures of active action — spurs and semi-ponds, designed to protect river banks and land sites and structures located on them from erosion by water flows.

The purpose of the invention is to increase the efficiency of the spur.

FIG. 1 shows a shore spur, plan view; in fig. 2 shows section A-A in FIG. one; FIG. 3 is a section BB in FIG. one,

The shore spur contains blocks 1, made in the form of quadrilateral prisms, set by edge 2 against flow 3, Blocks 1 form channels 4 between them converging in terms of shape, and rows of blocks between them channels 5 directed towards the channel 6, and the channels 7 directed towards the protected bank 8, Blocks 1 are made of two parts connected by the hinge 9 of elements 10 and 11, while the element 10 of the block is made not submerged, and the elements 11 are flooded.

The device works as follows.

With the passage of channel-forming and flood waters, the location of the blocks with respect to the flow direction with the formation of a system of canals 4 of converging-divergent form between them contributes to an increase in the carrying capacity of the structure, interception and transit passage through the structure of sediment and floating objects. Stream 3 is divided into parts: one part passes through channels 7, directed towards the protected shore 8, and the other part — through channels 5, directed towards the channel 6.

The jets emanating from channels 7 and 5 collide and occur in a modest quenching of their energy. In this case, transverse circulation and helical motion arise and the streams saturated with the coils are directed toward the protected bank 8, and other jets towards the channel 6. As a result of the energy of the flow is quenched, sedimentation on the bottom of the channel behind the structure increases, increasing the zone of protection shore behind her.

The shape of concrete blocks, their relative position and significant intrinsic weight ensures their stability, strength and integrity, durability and operational reliability of the spur.

When the bottom reaches the bottom, the unit element 11 is lowered into the erosion and covers element 10, which also increases the reliability and integrity of the spur, and the shape of the blocks is variable in cross section and increases the throughput of the spur.

Claims (3)

1. A spur guard comprising blocks arranged in rows in a staggered manner with the formation of through channels between each other, characterized in that each unit is executed in a four-sided prism set with a rib against the flow, while the through channels between the blocks are made in terms of the descent-divergent shape, and between the rows of blocks are directed alternately towards the protected shore and to the side of the channel. 2. Spore pop, 1j characterized in that each block is made of two elements pivotally interconnected, 3. Spor according to claim 2, characterized in that the elements are made of different heights, the rear element of the block being made not submerged, and the frontal element being submerged. /// / f / /// /////////////////// I //// 77/7777 / // / / / / 77 / // / 2n 71 Z Figg Editor M. Tovtin Compiled by E. Efimov Tehred M. Didyk Proof-reader T. Kolb Order 4418/35 Circulation 589 VNIPPI State Committee for Inventions and Discoveries at TKST of the USSR 113035, Moscow, Zh-35, Raushsk nab., 4/5 Production and publishing plant Patent, Uzhgorod, st. Gagarin, 101 Subscription