Flexible sloping shore mount at a flow of saturated sediment

 

The invention relates to hydraulic construction and can be used as shore protection structures in erodible channels of rivers, canals and other structures, flows have full of a lot of sediment. Flexible sloping shore mount at a flow of saturated sediments, includes braided grid laid overlapped by unrolling the rolls of the long side across the direction of flow with the fixation on the slope anchors, scored normal to the surface of the slope, and the formation of a solid carpet. What's new is that the grid is laid performed on the slope of the preparation of laid back and gravel or crushed stone filter and the grid are connected by the connecting wire, and the whole carpet is formed with a recessed base, and on top of the carpet woven mesh connecting wire attached shrubs or trees. Technical result provided by the invention is to improve the efficiency and reliability of coastal protection riverbeds and channels from erosion and durability lifetime of shore protection structures. 1 S. and 3 C.p. f-crystals, 6 ill.

The invention apply the erodible river channels, channels and other structures, flows have full of a lot of sediment.

A device for mounting a slope of earthen structures (SU 1461821, E 02 D 17/20, 28.02.1989), containing laid on slopes synthetic media coverage, the retaining elements and the layer of riprap. The retaining elements are made of beams, posts with hinges, ropes, nets, and limiters. Rock placement are made of gravel. The lower ends of the uprights pivotally connected to the crossbar, and their upper ends are connected with a rope. The rope attached to the net. One end of the rope attached to the crossbar, and their other free ends are strained due to the application of force. Uprights and crossbars are connected To the limit. Between the coating and the grid is laid a layer of riprap. A layer of gravel protects the floor from dynamic wave action. In turn, he protected mesh held in a predetermined position by ropes.

The disadvantage of this technical solution is that:

mounting in direct contact with the fluid flow and transported sediments and therefore may be subject to rapid wear and destruction in a short time;

design is a complex technical decisions is highlighted in the case, when in the river or channel high speeds and costs.

the environment is not favorable technical solution.

Known combined slopes fixed (EN 2189421 C2, E 02 D 17/20, E 02 At 3/12, 20.09.2002,) consisting of layered concrete blocks broken in terms of structural expansion joints into squares or rectangles, interconnected with all four sides of the mesh-netting and educated alternating layer-by-layer concrete slabs, bonded high-strength mortar or concrete, in which close or strips in places docking blocks stacked chain link. Mesh-netting on slopes laid on top of the berm and fixed, and at the bottom ends of the bottom fastening go into the depth of the slope, forming a console, with the number of layers of concrete slabs more than two.

The disadvantage of this technical solution are:

not used the sediment contained in the stream to form a natural protection;

is quite expensive technical solution;

the durability of fastening, consisting of such blocks is small due to the abrasion of concrete sediment and destruction fastening;

the environment is not favorable technical solution.

Most b is sustained fashion fastening with thread saturated sediments, includes braided grid laid overlapped by unrolling the rolls of the long side across the direction of flow with the fixation on the slope anchors, scored normal to the surface of the slope, and the formation of a solid carpet.

The objective of the invention is to improve the efficiency and reliability of coastal protection riverbeds and channels from erosion and durability lifetime of shore protection structures.

The problem is solved due to the fact that flexible sloping shore bracket at a flow of saturated sediments, including woven grid laid overlapped by unrolling the rolls of the long side across the direction of flow with the fixation on the slope anchors, scored normal to the surface of the slope, and the formation of whole carpet according to the invention the grid is laid performed on the slope of the preparation of laid back and gravel or crushed stone filter and the grid are connected by the connecting wire, and the whole carpet is formed with a recessed base, and on top of the carpet woven mesh connecting wire attached shrubs or trees. Shrubs or trees can be orientirovanyje flow. Moreover, shrubs or trees covered with cement-sand mortar.

Technical result provided by the invention is to improve the efficiency and reliability of coastal protection riverbeds and channels from erosion and durability lifetime of shore protection structures.

In Fig.1 shows a cross-section of the dam with flexible high-wall mount at a flow of saturated sediments, with the transverse orientation of shrubs or trees, General view; Fig.2 is a plan of the dam with flexible high-wall mount at a flow of saturated sediments with transverse orientation of shrubs or trees; Fig.3 - node a in Fig.1; Fig.4 - the slope with the laying of a woven mesh to the prepared substrate overlap, axonometric view of Fig.5 is a device for twisting wire; Fig.6 - node In Fig.5.

Flexible high-wall mount at a flow of saturated sediments, as follows.

On the slope of the dam 1 arrange the preparation 2 in the form of laid back and gravel or crushed stone filter and flexible high-wall mount 3 with recessed base 4. Preparation 2 is placed a layer of woven mesh 5 by unrolling the rolls of the long side 6 transversely to the direction of traffic flow. Braided mesh 5 way the positive wire 8. Connecting wire 8 braid device for twisting wire 9 having openings 10. The so formed carpet woven mesh 5 is fixed anchors 11, scored normally on the slope of the dam 1. On a carpet woven mesh 5 along or across the direction of movement of the thread stack and fix shrubs or trees 12 connecting wire 8. The connecting wire 8 braided device for twisting wire 9.

Preparation 2 in the form of a return filter serves as a filter and prevents mechanical suppose under a flexible sloping bracket 3 (Fig.1). The lower end of the unwound roll 6 grid 5 is buried and serves as an anchor, preventing the ascent of mount Z. the length of the recessed base 4 depends on the depth of scour. When this method of packing is braided mesh 5 due to the integrity of the grid carpet capable of withstanding very high loads in tension. This load depends on the thickness of the wire and can be up to 5-10 tons per meter of length of the braided mesh 5. The connecting wire 8 braided device for twisting wire 9 having a hole 10, in which probivautsa ends of the connecting wire 8 and Yes the mounting can be reduced from 6 to 4 mm Educated carpet woven mesh 5 is fixed on the slope of the anchors 11, the length of which should be such that friction forces and coupling them with the soil exceeded the forces weighing slope of the mount 3. The length of the anchor may be 1-2 m, and as a material it is possible to use conventional grooved fittings.

Laid on the slope shrubs or trees creates increased surface roughness, which reduces the velocity of the flow stream adjacent to the mount. By reducing the velocity of flow to values less than 0.2-0.3 m/s, is the process of deposition of suspended sediments and fixing the slope sediments. Shrubs or trees 12 can be transverse or longitudinal orientation. So the curvilinear slope is easier to style and will work better fastening with longitudinal laying shrubs or trees 12 and the straight slope with cross laying bushes.

To improve the performance and increase the longevity of slope attachment 3 shrubs or trees 12 may be covered with a cement-sandy solution. The crust of cement-sand mortar will harden mount and will slow down the rotting wood. It is enough in the tub, which is prepared with cement-sand shore fastening with thread saturated sediments, greener, cheaper and more reliable known similar technical solutions. While durability of these structures is 1.5-2 times as provides protection from decay.

Claims

1. Flexible sloping shore mount at a flow of saturated sediments, including woven grid laid overlapped by unrolling the rolls of the long side across the direction of flow with the fixation on the slope anchors, scored normal to the surface of the slope, and the formation of whole carpet, characterized in that the grid is laid performed on the slope of the preparation of laid back and gravel or crushed stone filter and the grid are connected by the connecting wire, and the whole carpet is formed with a recessed base, and on top of the carpet woven mesh connecting wire attached shrubs or trees.

2. Flexible sloping shore mount at a flow of saturated sediments under item 1, characterized in that the bushes or trees are oriented across the direction of flow.

3. Flexible sloping shore mount at a flow of saturated sediments under item 1, the axle shore fastening with thread saturated sediments according to any one of paragraphs. 1-3, characterized in that the bushes or the trees are covered with cement-sand mortar.

 

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FIELD: building, particularly hydraulic structure reinforcement.

SUBSTANCE: method is performed in two-stages. The first stage involves forming vertical elongated flat ground massifs secured by hardening material. Massifs are created in crest embankment area and in upper area of embankment slope so that massifs are spaced minimal available distance from crest and pass through embankment body, including land-sliding upper embankment slope area. Massifs are anchored in mineral bottom by lower edges thereof and are arranged at least in three rows and there are at least three massifs in each row. Method for massifs forming involves driving double-slotted injectors directly in embankment ground or in wells formed in embankment and having plugged wellhead; orienting injector slots perpendicular to hydraulic pressure head vector direction in embankment area to be reinforced; injecting hardening material under increased pressure across horizons from top to bottom or in reverse direction, wherein injection is initially performed under 5-15 atm pressure and at minimal rate in each second injector of one outermost row beginning from extreme ones; feeding hardening material in previously missed injectors in this row; supplying injectors of another extreme row with hardening material in the same way; feeding hardening material to ejectors of medium rows under 10-20 atm pressure; performing the second reinforcement stage as material hardens to obtain 70% strength. The second reinforcement stage involves forming vertical elongated flat massifs of secured ground anchored in mineral bottom by lower edges thereof and arranged at least in three rows, wherein each one includes at least three massifs. Massifs extend at the angle exceeding embankment slope angle to horizontal line. Massifs are formed with the use of double-slotted injectors in remainder embankment area. Injector slots are directed perpendicular to hydraulic pressure head vector direction in embankment area to be reinforced. Hardening material is ejected in above succession, wherein hardening material pressure is equal to design process pressure enough for direction of feeding hardening material through injector slots and lesser than hardening material injection pressure of the first reinforcement stage.

EFFECT: increased reliability of structure reinforcement; prevention of land-slide on structure slopes.

3 cl, 3 dwg

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