The method of construction of enclosing walls in the ground

 

(57) Abstract:

The invention relates to the field of construction, and in particular to methods of construction in the soil enclosing walls. The new method is that the vertical elements that create the ground with their location along the protected object rows at a distance from each other in each row and offset in each row relative to the adjacent elements in adjacent rows, offset by an amount equal to 0.2oC 0.8 step vertical elements and vertical elements made of length H that is defined by the dependence h h 3h, where h is the required excavation depth, and after the formation of the soil vertical elements provide a serial connection of adjacent vertical elements, connections, and when performing vertical elements of length equal to the desired depth of excavation, communication performed to a depth equal to the length of the vertical elements, when performing a vertical length greater required depth of excavation due to perform depth greater than the desired excavation depth (0,2oC 2,0) h, the distance in light between the vertical elements in the row are equal (0,5oC 10) d, and rasstojanie. f-crystals, 7 Il.

The invention relates to the field of construction and can be used during the construction of subsurface soil structures for various purposes: fencing of pits, sheet pilings, mooring and other structures, building foundations, basements, walls embankments.

The known method of fastening grooves in the soil, including the piling into the ground vertical elements of reinforced concrete piles, drilling between wells that are lower perforated pipe with nozzles directed toward the adjacent piles, and the flow through the nozzle under high pressure water to soil erosion between the wells and the piles and the exposure of the surface of the piles with simultaneous filling of the cavity formed between the piles cement, hardening of which is formed a wall between the piles [1]

The disadvantages of this method is that when a single-row arrangement of piles is insufficient rigidity of the fence is determined by the moment of inertia of the pile relative to a horizontal axis of symmetry.

Closest to the invention is a technical solution to the problem at hand, the essence and the achieved result is the execution method of ograda the protected object rows at a distance in the range of from each other and offset in each row with respect to the elements of the adjacent row, serial connection of adjacent vertical members of adjacent rows of links and excavation under the protection of the fence to the required depth [2]

In this way, due to the location of the pile rows disadvantage inherent in the above known method, fixed, however, this method has the following disadvantages.

If part of the work on the implementation of barriers, namely the creation of two rows of piles, to perform the excavation, then the rest of the work, namely the installation of the pile, puffs, belts and struts perform in the process of excavation, forcing to carry out the excavation in layers, alternating the passage of soil in each layer with the installation of belts and spacers between the piles. This alternation of work reduces productivity and increases the complexity and duration of the works. In non-cohesive soils, i.e. soils with a small amount of coupling, possible wood thrown maximum soil in the intervals of time between completion of excavation soil layer in these piles and creating puffs and hard links between them. Such wood thrown cause additional labor costs to remove and can cause soil movements for piles, which in turn may cause increased active earth pressure of SATAjet and spacers (compared with cases when wood thrown out of the soil between the piles excluded).

The present invention is the reduction of the material by providing opportunities for optimization of parameters of vertical elements, namely their length and stiffness, as well as the dimensions of the cross-sectional relationships between them, including, if necessary, perform their depth, the depth of excavation, and labor reduction, and reduction of construction time due to allow full implementation of the fencing prior to the development of ground protected by this fence, exclude ground motions beyond the fence, which in turn contributes to the reduction of material, eliminating the need for layer-by-layer excavation.

This problem is solved due to the fact that the method of execution of the enclosing wall in the soil, including the creation of the soil vertical members of the fence with the location of the along the protected object rows at a distance in the range of from each other and offset in each row with respect to the elements of the adjacent row, the serial connection of adjacent vertical members of adjacent rows of links and excavation under the protection of the fence to the desired depth, the vertical is the order, 0.2oC 0.8 step vertical elements and vertical elements are of length H that is defined by the dependence h h 3h, where h is the required excavation depth, while the vertical elements of length equal to the desired depth of excavation, communication performed to a depth equal to the length of the vertical elements, and when the vertical length greater required depth of excavation, due do to a depth greater than the desired excavation depth (0,2 oC 2,0) h, the distance in light between the vertical elements in the row are equal (0,5oC 10) d, and the distance between rows in the light equal to (1oC 5) d, where d is the largest dimension of the cross section of the vertical element. This links in cohesive soils can perform with breaks in height, and the height of the gap is (0,5oC 3) d; before excavation of the vertical elements of all rows can be merged on top of the horizontal nodding element; as excavation opposite site fences can combine ties; to dredging and/or excavation fencing can shankariah in the ground by anchor devices.

Technical RESM, due to optimization of the parameters of the vertical elements and the relationships between them reduced consumption of materials erected in the ground on the invented method of enclosing walls, it is possible to perform the links below the depth of the required excavation that allows you to place links in the area of the maximum torque loads and to increase the rigidity of the fence without increasing material consumption.

In Fig. 1 depicts a fragment of the fence in plan, constructed according to the present method; Fig. 2 section a-a in Fig. 1; Fig. 3 is the same, with links that perform to a depth exceeding the depth of the excavation; Fig. 4 a section along B-B in Fig. 1, with constraints placed on the height with gaps; Fig. 5 is the same, with nodding element; Fig. 6 is the same, with cross bars uniting opposite parts of the fence of Fig. 7 a section along B-B in Fig. 1 with anchor devices.

The method according to the invention is as follows.

For circuit protected object 1 make a creation in the ground 2, at least two rows of vertical members 3, 4. The elements 3 are arranged in one row, and the elements 4 in the other. As vertical elements 3, 4 can be e the poison vertical elements 3, 4 create at a distance from each other, with each subsequent row vertical elements 4 shift relative to the vertical elements 3 of the previous row by an amount equal to 0.2oC 0.8 step vertical elements. Vertical elements 3, 4 made of length H that is defined by the dependence h h 3h, where h is the required excavation depth. When performing vertical elements 3, 4 in length, equal to the required excavation depth, items 3 and 4 adjacent to each other in adjacent rows, sequentially connecting links 5, which perform to a depth equal to the length of the vertical elements 3 and 4. If the vertical elements according to the above dependency perform a length greater required depth of excavation, pile 5 perform to a depth greater than the desired excavation depth (0,2oC 2,0) h, the distance in light between the vertical elements 3 and 4 in a row is equal to (0,5oC 10) d, and the distance between rows in the light equal to (1oC 5) d, where d is the largest dimension of the cross section of the vertical element 3 or 4. Connection 5 in cohesive soils can perform with gaps 6, the height of which is (0,5oC 3) d. After the erection of vertical elements 3 and 4 all series they can about the excavation, it is possible to produce after the entire fence to the desired depth using all the available construction funds. As excavation opposite sections of 8 fences can combine the spacers 9. Connection 5 may be performed by any known method. In sandy or malovlazhnom loess soils connection 5 can be performed by hisactivities, silicatization array of ground between the vertical elements 3 and 4; in megaplatinum clay soils for the construction of the links 5, it is possible to use a known inkjet technology to drilling between the vertical elements 3 and 4 to the desired depth, dive into the wells of a special projectile, consisting of two pipes, one of which serves the water and soil erosion form a slot between the bore (not shown) and a vertical element, and the second (not shown) hardening material such as cement mortar, filling the formed slot, thereby creating the link 5 between the vertical elements 3 and 4. The distance between the vertical elements are appointed on the basis of the depth of the excavation created inside the fence and ground conditions for non-load-bearing wall: the fineness of its particles, cohesion, angle of internal friction, moisture, density, consistency. As shown by numerous experiments and observations, taking into account all the above verbale (0,5oC 10) d, and between the rows in the light (1oC 5) d, where d is the largest dimension of the cross section of the vertical element. By dredging and/or excavation fencing can shankariah in the ground by anchor device 10.

1. The method of execution of the enclosing wall in the soil, including the creation of the soil vertical members of the fence with their location along the protected object rows at a distance in the range of from each other and offset in each row with respect to the elements of the adjacent row, the serial connection of adjacent vertical members of adjacent rows of links and excavation under the protection of the fence to the desired depth, wherein the vertical elements in each subsequent row offset relative to the vertical elements of the previous row by an amount equal to 0.2 0.8 step vertical elements and vertical elements are of length N, is defined by the dependence h h 3h, where h is the required excavation depth, while the vertical elements of length equal to the desired depth of excavation, communication performed to a depth equal to the length of the vertical elements, and when the vertical elements in length, more required guinastasia in the light between the vertical elements in the row are equal (0.5 to 10) d, and the distance between rows in the light equal to (1 5) d, where d is the largest dimension of the cross section of the vertical element.

2. The method according to p. 1, characterized in that regard, in cohesive soils do with breaks in height, and the height of the gaps is (0.5 to 3) d.

3. The method according to p. 1 or 2, characterized in that before the excavation of the vertical elements of all rows unite on top of the horizontal nodding element.

4. The method according to PP. 1 to 3, characterized in that as the excavation opposite parts of an ograzheniye combine struts.

5. The method according to PP. 1 to 3, characterized in that prior to dredging and/or excavation fencing sancheriv in the ground by anchor devices.

 

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SUBSTANCE: method involves transporting pipeline tunnel sections by water to pipeline laying site; submerging thereof; placing pipeline tunnel sections on underwater piers with the use of flexible ties; sealing pipeline tunnel sections. Tunnel sections have nearly zero floatability. Pipeline tunnel sections are submerged and put on piers by flexible ties. Then pipeline tunnel sections are pushed in docking unit of previous submerged section with the use of submarine and sealed from inside and outside along with connection of inner service lines. After finishing pipeline tunnel sections assemblage entry and exit tunnels are secured to pipeline tunnel. System for underwater pipeline tunnel sections assembling includes underwater pipeline tunnel mounted on underwater piers and formed of separate sections having design lengths. Pipeline tunnel sections are divided into two chambers by horizontal partition. Transport path is arranged in upper chamber. Lower section is divided into several cavities by air-tight partitions for laying inner pipelines. Underwater pipeline tunnel sections are formed of two thick-walled shells of steel plates or titanium alloy. Longitudinal partitions are mounted between shells and secured along perimeter thereof. Longitudinal partitions serve as pipelines and stiffening ribs. Pipeline tunnel sections are laid on underwater permanent and temporary piers. Upper pier parts have bases of semicircular or parabolic shape. Pier part dimensions exceed that of pipeline tunnel sections.

EFFECT: increased efficiency of pipeline laying and maintenance during multi-purpose usage thereof.

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