Lodgment-type embankment

FIELD: building, particularly for road building and embankment repair, for forming platforms for buildings and creating islands and dams in shallow water zones.

SUBSTANCE: embankment erected on soil includes embankment base, embankment body and outer side slopes. Embankment base is made of clay and shaped as lodgment having side breastworks located above flood water level.

EFFECT: increased embankment stability, prevention of impounding thereof with flood water.

4 cl, 2 dwg

 

The invention relates to road construction and repair of embankments, including rail, construction, shallow, dumping sites under construction and filling of Islands and dams in the shallows.

Known mounds in which to prevent thawing of permafrost soils arrange the heat-shielding layer across the entire width of the embankment foot (Malysheva A.A. subgrade of roads in the North, Moscow, Transport, 1974, s).

The disadvantage of this embankment is different depth of thawing permafrost soil slope under parts and the main part of the mound, which leads to uneven deformation of the body of the mound and can cause loss of stability of slopes.

Closest to the proposed invention is a mound on permafrost soils, including heat-shielding layer under the side slopes at the base of the embankment in the form of prisms (parapets) and lateral slopes of concentration, copying the snow drifts (see SU 796298 A1, E 01 3/06, 15.01.1981).

The disadvantage of this mound is the washability its water flow, podtoplyaemoy groundwater.

The objective of the invention is to improve the stability and nesminaemosti embankment, ensuring nepotopljaemosti its groundwater, as well as filling on permafrost soil in sandy places the spine, as well as dams and Islands in the shallow water and repair of embankments different designs, device, pipe bridges in logements the embankment.

The problem is solved due to the fact that barrow includes a base, a body and an external side slopes, according to the invention, the base is made of clay in the form of lodgement with side parapets above the level of flood waters. In barrow located in lowland areas, can be stacked protruding and overhanging the ground vodopriemnye pipe. In lodgement can be made internal partitions with the formation of cells or compartments in the form of a honeycomb. In the body of the embankment can be built roadway pipe or pipe.

The technical result consists in increasing the stability and nesminaemosti embankments, as well as ensuring nepotopljaemosti its groundwater.

The invention is illustrated by drawings, where Fig. 1 schematically ligamentina mound with vadapalani pipe, erected described by way of Fig. 2 - same with roadway pipe.

The proposed embankment includes the body 1 of the mineral soil, the cradle 2, vodopriemnye pipe 3, the side slopes of 4, excavation soil (bottom) 5, the partition 6 bridge Bay bridge tube or pipe 7, a longitudinal supporting-guide tubes 8.

The described method is as follows.

1. On IPL on permafrost soil.

The technology of construction of the embankment is only at the time of the year in which it build.

In winter the bulldozer cleared the ground (band) from snow and ice to solid ground. Then on the cleared place poured clay from local sand quarries (where there are always layers of clay, loam). Further arranged lodgement of clay. The bottom bed is compacted and leveled to hydrocharitaceae soil. On the edge of the circuit lodgement compacted and leveled to protect against breakthrough of flood waters into the body of the mound. Inside the path of lodgement internal partitions are arranged with the formation of cells or compartments in the form of a honeycomb. After that lodgement slept the body of the mound of sand and placed the tubes (ducts) to bypass the flood waters. Vodopropusknye pipes are laid in the lowlands areas, where they can accumulate large amounts of water. The pipe ends are arranged protruding from the body of the mound and hanging over the ground. Then the body of the mound back to bed to the design level of dumping and strengthened the side slopes of the embankment peat or grass turf.

In flood and shallow construction technology is different from the winter only by the fact that the outer contour of the lodgement, bordering the water, is arranged (height and thickness of the side walls parapets) leave the water and impermeable to it. In lodgement the AK can get internal partitions with the formation of cells or compartments in a honeycomb structure for containment penetration of water into the body of the embankment.

Summer construction technology differs from technology to flood only the fact that the side walls parapets of lodgement (in areas not filled with water) are arranged smaller thickness and not arranged front wall of lodgement, road embankment under construction.

Mound on sandy areas in construction technology similar to 1.

Repair of embankments of various designs are produced by the excavator. This is removed to the bottom of the repaired area of the mound and finds lodgement in the form of a honeycomb. Subsequent construction technology similar to 1.

As a result of application of the proposed method is independent of the building from the weather conditions, seasons, year-round conservation embankment and repair of embankments of various designs by way of the local embedding cells logements the embankment.

1. Mound on earth soils, including the subgrade, the body of the mound and outer lateral slopes, characterized in that the subgrade is made of clay in the form of lodgement with side parapets above the level of flood waters.

2. Barrow according to claim 1, characterized in that barrow located in lowland areas, laid protruding and overhanging the ground vodopriemnye pipe.

3. Barrow according to claim 1, characterized in that logeman the e internal partitions with the formation of cells or compartments in a honeycomb structure.

4. Barrow according to claim 1, characterized in that the body of the mound is built roadway pipe or pipe.



 

Same patents:

FIELD: building, particularly for erecting ground road embankment in permafrost territory.

SUBSTANCE: berm located on transversal ground grade and directly adjoining upper embankment slope is formed of fractional rock ground. Berm comprises side antifiltering lock located in embankment body on natural ground surface near berm, lower antifiltering lock arranged below natural ground surface at contact area with lower berm surface and side antifiltering lock. Upper berm surface is located above maximum level hn of surface longitudinal water flow in bottom area of upper embankment slope. Berm body may be partly deepened in natural ground surface.

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The invention relates to the field of construction and can be used in the construction of roads on weak soils, as well as at construction sites

FIELD: building, particularly for building railroad embankments in permafrost zones.

SUBSTANCE: groove includes ballast prism, support massif contacting with groove slopes by side massif walls and arranged under ballast prism, heat insulation layer laid on groove slopes and protective layer located above heat insulation one. Support body comprises upper part of hU height formed of fractional rock and lower part of hL height made of non-drainage ground. Protective layer is made of drainage ground. Support massif height h0, upper part height hU and lower part hL height are determined from corresponding relations.

EFFECT: prevention of road bed deformation during embankment erection.

1 dwg

FIELD: building, particularly for building high filtering embankments on permafrost ground bases.

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EFFECT: possibility of regular embankment operation in permafrost areas.

4 cl, 3 dwg

FIELD: building, particularly for erecting ground road embankment in permafrost territory.

SUBSTANCE: berm located on transversal ground grade and directly adjoining upper embankment slope is formed of fractional rock ground. Berm comprises side antifiltering lock located in embankment body on natural ground surface near berm, lower antifiltering lock arranged below natural ground surface at contact area with lower berm surface and side antifiltering lock. Upper berm surface is located above maximum level hn of surface longitudinal water flow in bottom area of upper embankment slope. Berm body may be partly deepened in natural ground surface.

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2 cl, 2 dwg

FIELD: building, particularly for road building and embankment repair, for forming platforms for buildings and creating islands and dams in shallow water zones.

SUBSTANCE: embankment erected on soil includes embankment base, embankment body and outer side slopes. Embankment base is made of clay and shaped as lodgment having side breastworks located above flood water level.

EFFECT: increased embankment stability, prevention of impounding thereof with flood water.

4 cl, 2 dwg

FIELD: building, particularly for erecting road embankments in areas with high-temperature permafrost ground.

SUBSTANCE: earth structure comprises road bed body and rock layer exposed to air in peripheral zones. Lateral parts of peripheral zones in are water-impermeable from below. Rock layers are connected one to another by underlying rock layer.

EFFECT: increased resistance and operational reliability of earth structure, particularly erected on permafrost ground in summer period.

3 cl, 1 dwg, 1 tbl

FIELD: building, particularly for constructing road embankments on permafrost ground bases.

SUBSTANCE: road embankment comprises embankment body laid on natural ground surface, ballast section formed on the main embankment area and heat insulation layer. Road embankment has side auxiliary ground bodies with heights of not less than 0.3 m and Bb widths located within the boundaries of the main embankment area, slopes thereof and on horizontal area of natural ground surface at embankment slope base from ballast section sides. Heat insulation layer with Rh thermal resistance is located on leveling layer of dry frozen sand immediately under side auxiliary ground body. Bb is determined from specified condition.

EFFECT: increased stability and durability of embankment built on permafrost ground under heavy drift-snow transport conditions, simplified perennial technology of building thereof and extended range or local permafrost ground application.

3 cl, 5 dwg

FIELD: building, particularly for constructing road embankments on permafrost ground bases.

SUBSTANCE: road embankment comprises embankment body, ballast section formed on the main embankment area and heat insulation layer. Road embankment has side auxiliary ground bodies having hb heights and Bb widths located from ballast section sides within the boundaries of the main embankment area on natural ground surface at embankment slope base. Embankment body includes three layers, namely lower layer having hl height, medium layer having hm height and upper one having hu height. Upper layer is made of drainage soil. Heat insulation layer having Rh thermal resistance is located on leveling layer of dry frozen sand immediately under side auxiliary ground body. Heat insulation layer extends from its bottom to medium layer top surface and then over the top surface to vertical plane passing through the edge of main embankment area. Auxiliary ground body hb height is defined to increase convenience of mechanized embankment forming and is equal to 0.3 - 0.7 m in separate areas thereof. Main embankment dimensions are determined from predetermined conditions.

EFFECT: increased embankment stability and durability.

2 cl, 1 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 construct road embankments on permafrost ground.

SUBSTANCE: road embankment comprises embankment body composed of two stacked layers and ballast prism arranged on base platform. Each layer is formed as trapeze with larger base facing downwards. Lower base of upper layer trapeze has dimension c equal to that of upper base of lower layer trapeze. Lower base of upper layer trapeze mates upper base of lower layer trapeze. Upper layer has side slope less than that of lower layer. Main embankment parameters are determined from corresponding relations.

EFFECT: provision of embankment stability due to permafrost temperature reduction in embankment base.

2 cl, 1 dwg

FIELD: road building.

SUBSTANCE: invention can be used to strengthen weak base, increase strength and load-bearing capacity of roadbed. Proposed construction includes earth roadbed with shoulders and slopes, support longitudinal trench filled with material arranged in earth roadbed with geosynthetic material placed over top of trench. Longitudinal trench arranged along axis of earth roadbed or several longitudinal trenches are made with width of 0.6-10 at depth of 1.2-2.6 m filled with friction material, and geosynthetic material with minimum breaking strength of 15kN/m in longitudinal direction and of ≥ 20 kN/m in cross direction is placed over top of trench with back lapping into embankment providing formation of semiholders from two sides of earth roadbed.

EFFECT: improved service characteristics of road, increased time between repairs owing to elimination or reduction of sagging of earth roadbed base.

2 cl, 2 ex, 4 dwg

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