Landslide control structure

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

 

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

Known landslide construction (SU # 1647081 A1 E 02 D 29/02, bull. No. 17, 1991), including placed in the body of the landslide and anchored in the bedrock wall in the form of folds, the top of which is turned towards the landslide movement. The structure is intended to protect standalone facilities. Creeping ground, encountering the obstacle, which surrounds the protected object without effect upon him. A disadvantage of the known landslide protection works is that it does not stop creeping soil.

The closest to the technical essence and the achieved result is anti-structure (SU # 990972, E 02 D 29/02, bull. No. 3, 1983), including vertical walls, trapped in the underlying landslide sustainable soils and along the landslide with decreasing distance between adjacent walls towards the lower boundary of the landslide.

The disadvantage of this construction is the need of the device on the body of the landslide vertical slits depth, more power body of the landslide. This changes the stress-strain state of soil, decreases the stability of the lateral parts of the landslide in a transverse direction with respect to the displacement of the landslide; steadily the th secondary parts is reduced in the longitudinal direction. In the wet season of the wall can serve as a battery moisture due Baranova effect and lead to a decrease in the strength properties of the soil body of the landslide, especially at the level of the sliding surface and lower overall stability factor of the landslide.

Technical solution to the problem is to keep the soil body of the landslide by creating a constrained displacement of the soil.

This object is achieved in that in a landslide structures, including embedded in the underlying landslide the base of the vertical wall along the landslide with decreasing distance between adjacent walls, to ensure constructability, reducing time and cost for the construction of landslide protection works, as well as improve the reliability of structures and sustainability of the landslide in General, the vertical wall structures formed of pile rows in the form of folds with the step of providing neprotivlenie soil between the piles, and the folds are oriented vertex of the angle shifting towards the ground, and gratings adjacent the wing folds are connected by transverse beams.

The invention is illustrated by drawings, where figure 1 shows a landslide structure in plan, figure 2 - in the section.

Landslide structure includes a vertical wall 1, Shadeland the e in the underlying landslide base 2, and along the body of the landslide 3 with decrease of the distance between adjacent walls 1 in the direction towards the lower boundary of the landslide 3. The vertical walls are formed by rows of piles 4, located in the plan in the form of folds, which is oriented with the top corner towards the soil displacement of the landslide 3. The distance between the piles 4 are assigned from the condition nepredvidane soil in Messina space. Gratings 5 adjacent the wing folds are connected by transverse beams 6.

Landslide construction operates as follows. When shifting ground of the body of the landslide 3 down the slope the soil resisting vertical pile walls 1. Due to the shape of the walls 1 in the plan in the form of folds occurs frontal resistance to the displacement of soil landslide 3 at the apex of the folds, as well as normal and shear resistance along the lateral surfaces of the wing folds. By reducing the distance between the wing adjacent folds are cramped conditions the soil displacement between the individual folds, which leads to increased stability of the landslide 3.

Step 4 piles of conditions nepredvidane soil between the piles and triangular in plan form piling number provides the cramped conditions of the soil inside the folds. Thus, each fold works as pile-soil structure and sliding pressure is perceived as Swain the mi elements, and ground, the prisoners inside the folds. To increase the rigidity of the structure gratings adjacent the wing folds 5 are connected by cross beams 6.

As a result of application of the proposed structures is achieved by increasing the carrying capacity landslide structures, as well as the improving technology of erection of structures.

Landslide construction including vertical walls, embedded in the underlying landslide base along the landslide with decreasing distance between adjacent walls towards the lower boundary of the landslide, characterized in that the vertical wall is formed of pile rows in the form of folds with the step of providing neprotivlenie soil between the piles, and the folds are oriented vertex of the angle shifting towards the ground, and gratings adjacent the wing folds are connected by transverse beams.



 

Same patents:

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 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: 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 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 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

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 erect ground structures, namely to consolidate slopes, to reinforce banks of motor roads and railroads, dams, irrigation channels and river banks.

SUBSTANCE: method for slope reinforcing with members arranged in slope body involves preparing ground surface by terracing disturbed layers thereof in accordance with geological structure thereof along with substituting ground in unstable areas for draining material; compacting the draining material and reinforcing thereof with grids of polymeric material having openings of not more than 1 m; arranging zinc-coated steel mesh formed by two-for-one twisting method and having hexahedral openings; connecting the steel mesh with above grids; dividing prepared slope surface into sections with pitch not exceeding 3 m by installing the partitions of zinc-coated steel mesh formed by two-for-one twisting method having height of not more than 0.3 m; scattering loamy ground to form loamy layer having 0.1 m thickness; compacting the loamy ground; scattering vegetable soil; laying bio-textile on vegetable soil and planting greenery.

EFFECT: increased flexibility of protective coating and improved environment protection.

2 dwg

FIELD: securing of slopes or inclines, particularly for ground slopes and water pool banks stabilization, for artificial water pool building and reconstruction, for minor river recovery and erosive slope consolidation.

SUBSTANCE: method involves performing masonry works of building members by laying building member layers in alternation with fabric layers. The building members are rough stones, which are connected one to another by fabric impregnated with binding material to provide elastic connection areas between stone layers. Ground stabilization device comprises masonry formed of building members alternated with fabric layers. The building members are rough stones, which are connected one to another by fabric to form elastic connection areas between stone layers.

EFFECT: increased environmental safety, improved appearance and technological effectiveness, increased elasticity of stone connection.

16 cl, 3 dwg, 2 ex

FIELD: manufacture of plant covers used for beautification of streets, squares, construction of sportive grounds, as well as for landscape designing.

SUBSTANCE: method involves spraying organic adhesive onto fine-mesh basalt net by means of specially designed equipment for filling meshes to thereby create strong carrier base. Net is perfectly ecologically safe and allows seeds to be uniformly sown over the entire area of lawn. Adhesive used for providing lawn is functioning as nutritive compound for seeds and is used simultaneously for protecting seeds from external influence of moisture and air during prolonged periods. After drying in first drying chamber, mixture of lawn grass seeds is sown onto carrier base through dosing hopper, followed by applying onto given mixture of organic adhesive and drying in second drying chamber. After discharge from drying chamber, ready dry lawn is cut into parts of various lengths, wound into roll and hermetically packed in polyethylene film for further storage and transportation. Lawn is placed on site by unwinding roll onto preliminarily prepared ground and spilling nutrient mixture thereon, followed by heavy irrigation to provide for sprouts emergence. Nutrient mixture and lawn grass seed mixture compositions are worked out depending on climatic zone and composition of parent ground on which lawn is to be provided.

EFFECT: increased efficiency by providing uniform sowing of seeds over the entire lawn area, and damage-free transportation and handling of grown lawn.

1 dwg

FIELD: building, particularly bridge building.

SUBSTANCE: method involves compacting ground of embankment body and cones; forming drainage layers and water-draining chutes on coating; creating pad with variable rigidity decreasing in direction from bridge along embankment for length equal to approach slab length; arranging approach slab having upward gradient in bridge direction. Pad of embankment body is formed by creating cast-in-place piles along with surface compaction of upper cast-in-place pile parts and upper embankment layer, wherein transversal cast-in-place piles form strips having medium rigidity jointly with ground forming embankments. The medium rigidity is reduced from maximal value at bridge pier to minimal one at approach slab end opposite to bridge pier.

EFFECT: reduced embankment subsidence under approach slab due to decreased pad and draining material displacement in horizontal direction.

8 cl, 6 dwg

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 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

The invention relates to the field of construction and mining and can be used to restore the broken ledges during operation of the quarry
The invention relates to the field of construction, in particular the field of creation of soddy coatings and care for them, and can be used for the establishment and operation of outdoor sports soddy sites, high-quality lawn areas (tennis courts, Golf courses), ornamental lawns and soil-protective coatings slopes

The invention relates to the mining industry and can be used for open development of mineral deposits

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

Up!