Design of barrier for reinforcement of trench walls in performance of earth works

FIELD: construction.

SUBSTANCE: invention is related to the field of construction or repair of oil and gas pipelines and other engineering communications, in particular for reinforcement of walls in trenches of pits dug in ground during performance of repair or installation of pipelines of main and field oil and gas pipelines under conditions of looseness and floatage of grounds, also under conditions when possibility is not available to dig trenches by stockpile method. Fencing of working zone for performance of repair works of deepened sections of gas line consists of two walls and frame assembled from 2 spacers and 5 rods. Metal-plastic walls consist of frame welded from aluminium profile, two linings of glass-cloth laminate and filler from foamed self-extinguishing polystyrene. Spacers and rods are arranged as integral from rolled aluminium.

EFFECT: reduced weight of structure elements, possibility of sectional assembly of fencing in site of works performance and possibility to perform assembly manually without application of weight-lifting mechanisms by team of 4 people.

5 cl, 2 dwg

 

The present invention relates to the field of construction or repair of pipelines and other utilities and is intended to strengthen the walls of the trenches and pits dug in the ground, for the repair or installation of technical equipment, trunk, technological and commercial oil and gas in terms of flowability and buoyancy of soils, as well as in other conditions, when there is no possibility of trenching method of the blade.

Known design is easy mixture chamber (Series 100), consisting of aluminium modular panels weighing up to 132 kg, which allows you to set the fastener in the trench without using any equipment. To ensure safe operation of construction boards are made of high-strength aluminum type F 25 [1].

The disadvantage of this design is its high cost caused by the use for the manufacture of expensive special aluminum alloy.

Closest to the proposed invention the technical essence is the design of the box for emergency works, collected from two boards connected by a four turnbuckles. The shields are of a welded construction of steel, coated steel sheet with a total weight of 350 kg on one side of the shield welded round guide rods, who have holes for fixing on them lanyard with locking fingers. On the end faces are welded brackets for installation of the end beams. End of the beam, as well as lanyards, stopped by the fingers. Formed in the gap between the end beams are installed end tube plate, in svobodnopodveshennyj state that allows you to bypass the circuit is laid in a trench the pipe, ensuring minimal shedding ground in the inner cavity of the box. The assembled box is a closed loop with the four sides of the structure. The Assembly design is produced on flat ground, equipped gruzopodyemnye means [2].

A significant disadvantage of this design is the large mass of its constituent elements, which leads to the necessity of using special gruzopodemnoe techniques when working with the device.

The task of the invention is to reduce the weight of the product, the possibility of mounting structures in the field without the use of special lifting devices, reducing the cost of products.

This goal is achieved by the use of the building envelope 1 consisting of 2 aluminium-plastic walls 1 and frame, consisting of 2 x spacers 2, made of aluminum pipes connected by four longitudinal and one diagonal rods 3. The walls are attached to the frame 2 by means of V-zahwah the s 5 and 6 and are fixed with locking pin 7.

Aluminum-plastic laminated wall construction consists of a frame made out of aluminum channel, two skins of fiberglass type CASTES and fillers from self-extinguishing foamed polystyrene. Wall from the inner side of the lower part 2/3 height protected from exposure to open flame (gas or arc welding) foil.

Spacer, unregulated width of welded structure made from aluminium tube and has a limiting brackets and wall brackets for installation of the connecting rods. Each spacer welded horizontal pipe, the role of the stairs. In the upper horizontal pipe spacers there is a hole for attaching the banner of additional walls

Wedge grips are used for quick connection of the walls with the frame and consist of l-shaped brackets stops located on the supports 2 and 4, and pins 5, welded to frame walls 4 pieces.

Set fence 1 includes additional, quickly mounted the two walls 4, increasing the height of the fence if necessary 0.8 m Design additional walls similar to the main one.

Made fence of the claimed design is characterized by the smaller mass of the constituents in comparison with the above similar ed is the Lee. The lightness of the elements (mass wall not more than 65 kg, the mass of the spacers 19 kg) and easy mounting design allows to use it in the field without use of special equipment, which significantly extends the use of the product. Used for making shields inexpensive materials significantly reduces the cost of products.

Sources of information

1. Shoring for trench construction, easy assemble, Stopi.ru According to the materials of the company SBH COTRAHC. Reference "Builder" 6/2002, STC "Stratiform".

2. Boxing for emergency operations TYPE WAS THE 4859-005-46270584, the Certificate of conformity ROSS R EN. MT/N. LLC Company special projects "ETON" prototype.

1. The enclosure of the work area for repairs buried sections of the pipeline, comprising two walls and frame assembled from two bars and five bars, characterized in that the plastic wall consists of a frame made of aluminum profile, two facings of fiberglass and filler foam self-extinguishing polystyrene, and cross-bars and rods made of solid aluminum rolled.

2. The fence according to claim 1, characterized in that the connection of the walls with spacers is carried out by means of wedge grips with fixing the working position by means of pins.

3. The fence according to claim 1, characterized in that for an increase is for the height of the walls in the kit comes with a pre-fabricated additional wall, allows you to increase the height of the fence 0.8 m

4. The fence according to claim 1, characterized in that the inner surface of the main walls to 2/3 of the height from the bottom is covered with a metal foil that protects the fiberglass lining the walls from the effects of metal spatter during welding of the pipeline.

5. The fence according to claim 1, wherein each spacer has a built-in ladder.



 

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The invention relates to the field of construction and can be used during the construction of subsurface soil structures: fences, ditches, walls, mooring and other structures, building foundations, basements, walls, embankments, etc

FIELD: construction.

SUBSTANCE: invention is related to the field of construction or repair of oil and gas pipelines and other engineering communications, in particular for reinforcement of walls in trenches of pits dug in ground during performance of repair or installation of pipelines of main and field oil and gas pipelines under conditions of looseness and floatage of grounds, also under conditions when possibility is not available to dig trenches by stockpile method. Fencing of working zone for performance of repair works of deepened sections of gas line consists of two walls and frame assembled from 2 spacers and 5 rods. Metal-plastic walls consist of frame welded from aluminium profile, two linings of glass-cloth laminate and filler from foamed self-extinguishing polystyrene. Spacers and rods are arranged as integral from rolled aluminium.

EFFECT: reduced weight of structure elements, possibility of sectional assembly of fencing in site of works performance and possibility to perform assembly manually without application of weight-lifting mechanisms by team of 4 people.

5 cl, 2 dwg

FIELD: mining.

SUBSTANCE: invention is related to mining and processing industry and may be used to restore disturbed lands in construction and power industries. Method consists in the fact that after pit exhaustion, space of barrow pit is partially filled in layers: first with debris, and then filled with overburdens till elevation of foundation pit bottom for foundation of future structure. Squeezing plant is mounted onto even and compacted layer of overburdens, which is used to reinforce boards along perimetre of pit intended for construction, at the depth of at least 1.8 metre by means of horizontal squeezing of reinforcement elements with formation of end sections beyond the borders of pit walls. Then along perimetre of pit bottom, under each of protruding end sections of reinforcement elements, drilled piles are arranged with reinforcing frame and high foundation grill intended for installation of column that connects drilled pile with end sections of reinforcement elements, besides reinforcement elements are laid on calculated distance from each other, afterwards mass of soil is extracted in pit walls between reinforcing elements and initially installed drilled piles, after extraction of calculated amount of soil and reinforcement of walls in produced space, further drilled piles are installed with columns and fixed, and further amount of soil is extracted, cycle is repeated until calculated volume of premise is available in pit walls, after final equipping of underground premise, foundation is erected on manmade base, and ground structure is constructed.

EFFECT: reduction of labour expenses and cost of restoration works.

2 cl, 2 dwg

FIELD: mining.

SUBSTANCE: invention relates to mining and processing industries and may be used to recover disturbed lands in agriculture, construction and power engineering industry. Method consists in the fact that after open pit has been exhausted, its space is filled in layers first with construction waste, and then filled with overburden to the elevation of pit bottom for foundation of future structure, at the same time layer of overburden is leveled with a layer of sand having medium size with further compaction. Then future structure foundation axes are laid, as well as future solid reinforced concrete elements according to accepted design structural scheme relative to axes of foundations. Along each of laid longitudinal axes of future solid reinforced concrete elements, at the pit bottom panel forms are erected, evenly filled with concrete mix of grade not less than B 15 by quarter of panel form height, laid concrete mix is compacted by rodding, then reinforced frames are installed onto freshly laid concrete mix, and panel forms are fully filled with concrete mix. After concrete mix poured into panel forms gains strength, panel forms are removed, and space between produced longitudinal solid reinforced concrete elements is filled with crushed slag. Afterwards soil foundation is filled, which includes two layers: intermediate layer of dry mix of soil and crushed slag, and above a layer of crushed stone from solid rocks of medium size to the elevation of foundation level of constructed structure, besides soil foundation thickness equals height of cross section of longitudinal solid reinforced concrete elements, and thickness of intermediate later from mix of soil and slag stone makes one third of foundation level thickness, besides, the last level is flattened and compacted, and then foundation is erected.

EFFECT: reduction of labour expenses and cost of recovery works.

2 cl, 3 dwg

FIELD: construction.

SUBSTANCE: invention relates to construction, namely to erection of trench wall in ground. The formwork element for the trench wall intended for placement between the first erected section of the trench wall and the adjacent second section of the trench wall to be erected, containing the main body in the form of bar having the formwork side with the first formwork surface and the second formwork surface and between the first formwork surface and the second formwork surface the reception chute is located which is implemented in the form of recess with reference to two formwork surfaces which contains the waterproofing strip which passes along the main body, and the closing element by means of which the reception chute on the main body is closed. The closing element surrounds the reception cavity where the protected waterproofing strip is located and which is implemented with a possibility of opening for release of the waterproofing strip. The closing element is implemented in the form of film or fabric implemented with a possibility of rupture for opening of the reception cavity on the main body and release of the waterproofing strip, and the reception cavity is filled with fluid or loose material filler.

EFFECT: technical result consists in providing of reliability of the trench wall with high waterproofing ability in ground.

18 cl, 2 dwg

FIELD: construction.

SUBSTANCE: device for protecting the trench slopes from soil shedding comprises a cladding fastened to stiffeners. The stiffeners are made in the form of non-closed frames oriented across the trench. The non-closed frames are bound in pairs with each other by longitudinal ribs arranged along the upper trench edge, and are equipped with cladding, with the formation of modules, in which the cladding, the non-closed frames and the longitudinal ribs are moulded as a single unit.

EFFECT: reducing labour costs for preparing the material and manufacturing the structure elements, increasing the installation efficiency while improving the fastening reliability of the trench walls, increasing the service life, improving the productivity while carrying out excavation works, increasing the constructability of the trench equipment.

4 cl, 3 dwg

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