L-shaped retaining wall

FIELD: building, particularly engineering structures adapted for protection of linear and separate installations, including motor roads and railroads, against rock sliding, rock sloughing and mudflows.

SUBSTANCE: retaining wall includes relaxation device, face and foundation slabs rigidly secured one to another. Foundation slab is anchored in foundation ground. Relaxation device is formed of reinforced concrete slabs arranged in two longitudinal rows and secured to face slab by springs with variable spring force so that reinforced concrete slabs extend at different angles to horizon line. Low row slabs have lesser angle of inclination. Face slab and low slab row are provided with through slots. Foundation plate has cylindrical base and connected to inclined anchor by means of damping device.

EFFECT: reduced building time and operational costs for accumulating cavity cleaning, reduced labor inputs.

2 dwg

 

The invention relates to the construction, in particular to engineering structures for the protection of linear structures and separate objects from rocky scree and rock-avalanche impact of rockfalls and wood thrown large individual stones, and water-stone debris flows, and can be used for engineering protection of the fabric of roads and Railways.

You know catching protivojazvennoe structure representing a retaining wall with a device for cushioning her dumping of rubble or local soil, fortified stone in order to prevent structural failure of the wall falling from the top of the slope with rocks and catching sinus formed by the slope of the shock-absorbing filling and spurs mountainous slope slope (Tolmachev K.H. road. Special structures. - M.: publishing house. Transport, 1986, p.86-87).

The disadvantage of this construction is at a relatively high altitude catching wall the need for a large volume of earthworks for cushioning device filling and repair. In the cramped conditions of the construction of linear structures on the rocky slopes of great height and steepness need a large amount of rock work on pruning mountainous slope, with the aim of catching device sinus necessary volume and shape, ensuring the th detention stones and weathering products, setiausaha and falling from the upland slope.

You know the boom to hold the falling rocks, including fencing panels installed on the berm parallel to the edge of the escarpment near its edge, and a shock-absorbing elements, one end fixed on each enclosing the shield and the other to the anchor installed in the well, drilled on the slope behind the enclosing shield, and a shock-absorbing elements in the form of cables, rsreplay adjacent enclosing shields, and are connected at mid-span between the anchors in the plane passing through the anchors, parallel to the protective shields (ABT. mon. No. 678147, E 02 D 29/02, 1979, ed. mon. No. 909021, E 02 D 29/02, 1982).

The disadvantage of such structures is the inability during the operation of mechanized cleaning catching sinus from stone material rockslides, landslides and wood thrown due to strained anchor cables, the possibility of damage to cables falling from the mountainous slopes of rock debris of considerable size and weight.

Known retaining wall, including Foundation design, rigidly fixed to the it racks attached to the racks disposable unit formed by overlapping laid on transverse beams broken outlines of two parts, the upper of which forms with the lower part and with the racks respectively blunt the sharp corners, and the front fence, coupled with the racks above their mates with cross beams and Foundation design is made separate from the footings for posts and pier foundations under lateral beams and transverse beams pivotally connected to the uprights and secured the lower ends with the columnar foundations through the U-shaped anchors with the ability to change the angle of the lower portion, and top and bottom cross beams are interconnected pivotally by means of flexible connections (SU 1808043 A3, E 02 D 29/02, 07.04.1993).

The disadvantage of such structures is the inability of the damping of the structure during the impact with the building falling from the slope of the fragments of rock that have significant size and weight. The relief well design made of cross beams, hinged with struts and pier foundations under the crossmember. Each transverse beam consists of two parts, also connected by a hinge. This implies, in the absence of deformation of the bending of individual parts, only the ability to rotate parts of the structure in nodes without the possibility of horizontal or vertical offset. Thus, compensation of dynamic impact from falling from the slope of the stones of considerable size is only possible due to the bending of the individual parts of the design - uprights, cross beams, beams, crates, or changing the position of the foundations. The latter imposes high requirements on the one hand, to strain, on the other, to the strength of the parts of the structure.

In addition, the implementation of separate foundations leads to lower stability of the structure on rollover, because the Foundation under the lower ends of the transverse beams are not able to work as anchor, pull out.

Closest to the proposed construction to the technical essence and the achieved result is angular retaining wall including front fence and the base plate, connected to each other by means of anchor rods, and the front fence is made of longitudinal and base plate of the longitudinal and transverse rows adjacent to each other piles formed from horizontally placed one on the other tires, and thrust anchor made of interconnected and located in the same plane tires (ed. mon. The USSR №1694784 A1 E 02 D 29/02, 1991).

The disadvantage of this construction is: when working structures as protivoavarijnoj design width commensurate with its height when choosing the height of the wall and sizes catching sinus of conditions prevent flight and leap falling from Nagorno from the womb stones limits its use in confined conditions and protection of linear structures on the rocky slopes of the great steepness and height. Furthermore, the design has a low resistance to overturning when a significant shock loads from falling from the upland slope of the stones due to the commensurability of the structure's weight with the weight and size of the shock of falling from the upland slope of the rocky fragments.

The challenge is an obstacle to flight and leap and perception of the impact load from falling from the upland slope of the stones without destruction or damage due to the shape and flexibility of design with a minimum transverse dimensions to minimize excavation and rock work, and reducing construction time and maintenance costs for cleaning catching sinus from the accumulation of weathering products, rockslides and avalanches.

This object is achieved in that corner reinforced concrete retaining wall, having a disposable device and comprising rigidly connected to the front and the base plate, the latter of Sankaran in the Foundation soils, disposable device made of concrete slabs installed in two longitudinal rows and secured by a spring of variable stiffness to the front plate at different angles of inclination to the horizontal plate of the bottom row have a smaller angle of inclination to the horizon, while the face plate and the lower number of plates have through the slots, and base plate is under the seam in the form kropielnicki surface and connected with a sloped anchor through the damper device.

The novelty of the proposed facility due to the fact that due to the shape of the surface of the unloading device, directly perceiving dynamic load from falling from the slope of the stones and the possibility of its elastic deformation, the magnitude of the impact load can be greatly reduced. Install the damper device in the connection node of the anchor base plate and kruglounivesitetskaya the shape of the surface of the sole plate allow you to increase the limits of the elastic flexibility of the wall upon impact. The proposed construction of the wall in comparison with the known analogues, has a more compact size, which determines the benefits of its use in confined conditions and protection of linear structures on kosogornyj village and rock fall-hazardous areas.

The invention is illustrated by drawings, where figure 1 shows a cross section of a corner of a retaining wall and figure 2 - view of the wall from the side of the slope.

Angular retaining wall consists of a front plate 1, a base plate 2. To prevent destruction of the front plate 1 is provided disposable device made of concrete slabs 3 installed in two longitudinal rows and secured by a spring of variable stiffness 4 to the front plate 1 at different angles of inclination to the horizon, and plate 3 of the lower row are smaller at the ol tilt to the horizon. For retaining walls in steady state and project the position of the base plate 2 fixed wall anchors 5. The connection node of a base plate 2 and the tie rod anchors 5 includes a damper device 6. Face plate 1 and the bottom row of plates 3 disposable devices have a number of through slots 7 with the aim of crossing the water by the gathering of the water-stone sat or abundant surface water runoff. Filling 8 bottom zastenny space is a layer of loose material one particular faction.

Base plate 2 is performed with the sole in the form kropielnicki surface (figure 1, 2), and anchor 5 to prevent shear and overturning of the wall are inclined.

The construction works as follows: dynamic load from falling from the upland slope of stones, striking directly into the wall, is perceived by the plates 3 disposable device. Plate 3 is installed with different angles of inclination to the horizon, which allows to reduce the magnitude of the shock loads due to the mechanism of “rolling stone. Installing the panels 3 in the spring of variable stiffness 4 provides the property of the elastic flexibility of the structure, which increases the time of impact and, therefore reducing the magnitude of a shock. Moreover, the requirement of a variable stiffness springs 4 mounting plates 3 due to the necessity of Stepanovo inclusion in the spring and accordingly, the maximum effect of reducing the velocity of the moving rock chip. Install the damper device 6 in the connection node of the anchor 5 with the base plate 2 and kropielnicki surface of the sole base plate 2 provides additional elastic yielding of the wall, and consequently, reduce the perceived wall load.

To more effectively reduce the shock load transmitted to the wall bounce from the bottom zastenny space debris, is filling 8 last layer of loose material one particular faction.

Corner of the retaining wall is erected as follows: is the cutting of the slope to form a slope catching sinus necessary volume and shape, is the breakdown of the axes and the removal of the design position of the wall in nature. Is the excavation under the base plate 2. Then arranged the anchor 5. The installation frame and formwork base plate 2 and the damper device 6 in the design position. Then the base plate 2 is concreted, the fastening bolt 5. The installation frame and the casing front plate 1, a spring of variable stiffness 4 and designs of mounting a protective concrete slabs 3 in the design position. Is the concreting of the front plate 1. The mustache is yavlyaetsya plate 3 disposable devices in the design position. The charge is effected 8 bottom catching sinus loose material of one faction.

Corner reinforced concrete retaining wall having a disposable device and comprising rigidly connected to the front and the base plate, the latter of Sankaran in the Foundation soils, characterized in that the relief well is made of concrete slabs installed in two longitudinal rows and secured by a spring of variable stiffness to the front plate at different angles of inclination to the horizontal plate of the bottom row have a smaller angle of inclination to the horizon, while the face plate and the lower number of plates have through the slits, and the base plate has a sole in the form kropielnicki surface and connected with a sloped anchor through the damper device.



 

Same patents:

FIELD: building, particularly for slope consolidation and for stabilizing deep front landslide areas.

SUBSTANCE: structure includes foundation mat and piles formed in wells grouped in rows. Upper pile parts are embedded in foundation mat, lower one is restrained by not-sliding ground layers. Piles are composite along their lengths. Central pile parts are not filled with concrete. Heights of upper and lower pile parts decrease towards landslide head. Structure to prevent deep front land-slides comprises separate local pile groups connected by foundation mats and located within landslide body boundaries. Each foundation mat has tension bars anchored in stable slope layers and arranged under and above foundation mat along slope to retain thereof against displacement and rotation.

EFFECT: improved slope stability, increased operational reliability of structure built on wide landslides, reduced building time and material consumption.

2 dwg

The invention relates to the construction and can be used to stabilize landslides on the slopes

The invention relates to the construction, namely, devices, designed to reduce landslide pressure on pipelines located on landslide slopes

The invention relates to the construction, in particular, to the creation of barriers to movement of landslides threads

The invention relates to the construction, in particular for the strengthening of landslide-prone slopes, and can be used in the development of unstable areas of the built-up territory, composed of gravel and clay soils

The invention relates to the construction, in particular to stabilize the landslide slopes

Landslide design // 2224069
The invention relates to the construction and can be used to stabilize the landslide slopes

The invention relates to the field of construction, namely, to designs of precast precast-monolithic wall in ground

Retaining wall // 2211287
The invention relates to the construction and can be used for retaining walls in conditions that prevent the use of machines and mechanisms

The invention relates to hydraulic engineering and can be used in the construction of stepped retaining walls, protecting slopes structures and the banks of ponds and streams from the destruction of their water and ice

FIELD: building, particularly for slope consolidation and for stabilizing deep front landslide areas.

SUBSTANCE: structure includes foundation mat and piles formed in wells grouped in rows. Upper pile parts are embedded in foundation mat, lower one is restrained by not-sliding ground layers. Piles are composite along their lengths. Central pile parts are not filled with concrete. Heights of upper and lower pile parts decrease towards landslide head. Structure to prevent deep front land-slides comprises separate local pile groups connected by foundation mats and located within landslide body boundaries. Each foundation mat has tension bars anchored in stable slope layers and arranged under and above foundation mat along slope to retain thereof against displacement and rotation.

EFFECT: improved slope stability, increased operational reliability of structure built on wide landslides, reduced building time and material consumption.

2 dwg

FIELD: building, particularly engineering structures adapted for protection of linear and separate installations, including motor roads and railroads, against rock sliding, rock sloughing and mudflows.

SUBSTANCE: retaining wall includes relaxation device, face and foundation slabs rigidly secured one to another. Foundation slab is anchored in foundation ground. Relaxation device is formed of reinforced concrete slabs arranged in two longitudinal rows and secured to face slab by springs with variable spring force so that reinforced concrete slabs extend at different angles to horizon line. Low row slabs have lesser angle of inclination. Face slab and low slab row are provided with through slots. Foundation plate has cylindrical base and connected to inclined anchor by means of damping device.

EFFECT: reduced building time and operational costs for accumulating cavity cleaning, reduced labor inputs.

2 dwg

FIELD: building, particularly for bordering or stiffening the sides of foundation pits.

SUBSTANCE: method involves driving vertical piles in ground along pit perimeter for depth exceeding pit bottom level; excavating ground up to reaching pit bottom level to open bordering member surfaces facing inwards; securing horizontal distribution beams to above surfaces to create framing belt; installing spaced cross-pieces along pit perimeter; leaning the first cross-piece ends against distribution beams and securing the second ends thereof into pit bottom ground; removing cross-pieces after reinforced concrete pit bottom forming. Ground is excavated to form inner initial pit and then stepped trench is dug out under the protection of thixotropic mix along the initial pit perimeter in direction transversal to bordering formed by piles. Lower trench step is located below pit bottom level and the second cross-piece ends are secured to above step which is then concreted under the protection of thixotropic mix. After hardening support shoe of cross-pieces trench is filled with previously excavated ground and ground is excavated of the pit up to reacting pit bottom level.

EFFECT: possibility to consolidate pit just after the initial pit and framing belt forming.

3 cl, 2 dwg

FIELD: building, particularly retaining or protecting walls.

SUBSTANCE: landslide control structure comprises inclined injection piles arranged in several groups, connected one to another by grillage and built-in stable ground by lower ends thereof. The piles are united in groups each containing three piles arranged in pyramid corners so that one triangular plane defined by each pile group lies against landslide direction and is supported by struts. Above planes of neighboring triangles intersect in lower one-third part.

EFFECT: increased structure reliability and stability.

2 dwg

FIELD: agriculture, particularly steep slope terracing to adapt the slope for fruit trees and other crops growth.

SUBSTANCE: method for terracing slopes having steepness equal to or exceeding natural soil slip angle involves forming step-shaped ledges having depressions; scattering soil excavated from the slope over the ledges; stabilizing the soil with reusable rectangular netted retaining walls. The retaining wall has frame-like wall base created of welded angular or channel bars or bars of another cross-section. The wall bases are installed on the slope along lower ledge bounds and inclined at 60° angle with respect to horizon line. The wall bases are fixed by support and bearing wedges for a time equal to soil conglomeration time, wherein liquid or granular fertilizer is preliminarily introduced in soil and soil is laid down with perennial grass before ledge hardening.

EFFECT: increased slope use factor.

3 dwg

FIELD: building, particularly to stabilize slope landslides.

SUBSTANCE: landslide control structure comprises vertical walls built in base formed under the landslide and located along the landslide so that distance between adjacent walls decreases towards lower landslide end. Vertical walls are made of pile rows defining pleat-like system having pitch preventing ground punching between the piles. The pleats are directed so that corner apexes thereof face sliding ground and grillages of adjacent pleat flanges are connected by transversal beams.

EFFECT: increased load-bearing capacity and increased technological efficiency of structure erection.

2 dwg

FIELD: building, particularly to erect road embankments.

SUBSTANCE: road embankment comprises embankment ground, retaining wall and support structure. Embankment ground is divided with flat geonet webs into several layers. The retaining wall is also divided into layers similar to ground layers and covered with single geonet webs. Each retaining wall layer has vertical through slots filled with macroporous draining material. Flat geonet webs are inserted between hollow layers of retaining wall. Vertical cavities of adjacent retaining wall layers in height direction are superposed in plan view. Length L of ground layers reinforced with flat geonet webs beginning from inner retaining wall surface is determined from a given equation. Road embankment erection method involves forming retaining wall base; laying road embankment ground layers alternated with flat geonet webs; erecting retaining wall comprising several layers and constructing support structure. Base is initially created and then lower erection wall layer is erected on the base, wherein the retaining wall is provided with vertical cavities having heights corresponding to ground layer heights. The vertical cavities are filled with coarse material for 2/3 of volume thereof and then embankment ground layer is poured and compacted. Embankment ground is leveled and coarse material is added in the cavities. The coarse material is leveled and geonet web is placed onto the coarse material within the bounds of retaining wall and embankment ground layer. Next layers are formed in similar manner. Reinforced concrete block for retaining wall forming comprises device, which cooperates with ambient ground. The device comprises one or several vertical through cavities to be filled with granular coarse material. Depression in concrete is formed in lower block surface in front of erection loop.

EFFECT: reduced material consumption and erection time, increased service life, stability and operational reliability.

9 cl, 12 dwg

FIELD: building, particularly to reinforce landslide slopes, particularly extensive landslides.

SUBSTANCE: landslide control structure comprises bored piles fixed in stable slope ground layers and retained by anchoring means. To provide stability of lower landslide part inclined bars of anchor means are connected to bored pile heads. The anchor means are drilled down the slope and have fan-like structure. The anchor means are located at different levels in landslide body.

EFFECT: reduced labor inputs and material consumption for landslide control structure erection and increased stability of landslide massif.

2 cl, 2 dwg

FIELD: building, particularly foundation and retaining wall erection with the use of injection piles.

SUBSTANCE: injection pile comprises concrete shaft formed directly in well and comprising reinforcing cage made as metal injection pipe lowered in well to refusal and spaced from well wall. The injection pipe is provided with lower perforated section having side injection orifices arranged in several layers beginning from lower injection pipe end. Well diameter is not more than 3d, where d is outer injection pipe diameter. Perforated section length is more than 3d, but less than L and is equal to (0.2-0.7)L, where L is well depth. Retaining wall is built on pile foundation comprising injection piles. The retaining wall includes reinforcing cage made as metal pipe having upper part used as head. The retaining wall is composed of concrete blocks laid in several rows one upon another. Blocks of lower row form retaining wall base. At least upper block installed on lower one has through orifice, which is vertically aligned with mounting orifice formed in lower block. Common cavity defined by above orifices is reinforced and concreted.

EFFECT: simplified structure, reduced cost of pile foundation and retaining wall construction.

21 cl, 3 ex, 3 dwg

FIELD: equipment for underground mining, particularly slot cutting bit adapted to operate in high-pressure environment.

SUBSTANCE: device comprises driving gear put in case, pressurizing means to change pressure in the case and active regulation means. Active regulation means may be operated by control means to change inner pressure in driving gear case. Active regulation means comprises pump and/or equalizing vessel. The pump and the equalizing vessel are communicated with driving gear case through fluid supply and/or discharge pipeline.

EFFECT: increased air-tightness and packing of driving gear due to increased accuracy of oil pressure regulation in driving gear box in dependence of environment conditions.

14 cl, 6 dwg

Up!