(57) Abstract:Use: in the construction during the construction of pile foundations in soils of average and above average density. The essence of the invention: piles having a barrel flange cross-section, shelves and wall tee made with their lower ends in divergent levels, and the leading section of the barrel is pointed, and the difference of levels lower ends of the shelves and walls defined installed dependence on the distance between the outer flange edges of the tee. Technical result provided by the invention, is to facilitate pile of I-beam section in the soil and increase the strength of its fixation in the soil, as well as improving the performance of the immersion process. 3 C.p. f-crystals, 6 ill. The invention relates to the construction, in particular, to the design of piles in the open profile.Famous tongue-and-groove pile containing barrel of I-beam section, shelves and walls which are executed with the location of their lower ends in divergent levels (US, patent, 3333429, E 02 D 5/28, 1967).However, the known pile is intended only for the perception of horizontal static loads and has ogran the ox I-beam cross-section (GB, patent 1295304, E 02 D 5/72, 1972).Known pile provided with a Shoe, made in the form of a lattice, fixed on the lower end of the stem, as well as several bars, fastened at intervals along the length of the barrel from the lower end, which creates significant additional resistance when immersed her into the ground.These particular structural embodiment famous piles limit its scope only weak soils.The objective of the invention is to facilitate pile while ensuring the strength of its fixation in the soil and increasing productivity of the immersion process.The problem is solved due to the fact that the piles, including the stem h of the cross-section, shelves and wall tee made with their lower ends in divergent levels, and the leading section of the barrel is pointed, and the value of l the difference between the levels of the lower ends of the shelves and the wall defined by dependence
l = (0,30,5)a,
where a is the distance between the outer flange edges of the tee. When this wall I-beams may be located below the shelves and pointed in a plane coincident with the plane of the wall, or shelf beam located below stanich features is that when the relief pile into the ground is provided by the strength of its attachment improves the performance and manufacturability of the process of construction. The effect is achieved by alternately sequential implementation process in the soil of the Central and peripheral parts of the pile shaft with an interval defined above dependence obtained experimentally.In Fig. 1 shows the design of piles with leading Central part of Fig. 2 is a cross section along a-a in Fig. 1, in Fig. 3 is a side view in Fig. 1, in Fig. 4 - option piles with leading peripheral parts of Fig. 5 - section b-B in Fig. 4, in Fig. 6 is a side view in Fig. 4. The pile shaft I-beam consists of shelves 1 and wall 2 with pointed lower ends 3 and 4. The lower ends of the shelves and the walls of the I-beams are divergent levels, and the leading section of the trunk is made sharp. The difference of levels lower ends 3 shelves 1 and the bottom edge 4 of the wall defined by dependence
l = (0,30,5)a,
where a is the distance between the outer flange edges of the tee. The bottom end 4 of the wall 2 can be performed leading and pointed (see Fig. 1). The lower ends 3 shelves 1 can be performed leading and pointed (see Fig. is ü sharpened (see Fig. 1 and 3).When submerged piles in the ground leading tapered section of the shaft 4 penetrates into the soil, it violates the natural structure and all following plots 3 meet much less resistance. In addition, the specific pressure on the ground ends of the stepped sections of the trunk increases significantly due to the reduction of the contact area, which facilitates the immersion piles. In this case, the effect of destruction of rocks on the bottom of the drill hole step bit or drilling crown, when the stepped configuration of the end face of the bit or crowns causes an increase in stress concentration in destroying the breed and helps increase the speed of its implementation. However, acuminate areas 3 of the trunk, which penetrate into the soil after the leading section 4, wring out the ground to the sides, forming around the trunk reinforced area, increasing the strength of its entrapment in the soil and load bearing capacity. The difference between the levels of the lower ends of the shelves and the walls of the I-beams forming the pile shaft, take depending on the soil type (sandy 0.3 magnitude of the distance between outer edges of the shelves I-beam, for clay - 0,5).The use of piles of this design with ispolnenie strength embedded in the soil due to the optimum combination of constructive and geometrical parameters of the lower end of the stem, providing favorable conditions for diving and anchoring piles in the ground.The invention can be effectively used in the construction of various structures in soils of average and above-density, in particular, the supports of power transmission lines and equipment of substations in compacted sandy soils of the North of Western Siberia. 1. Pile, including the stem h of the cross-section, wherein the shelf and the wall of the tee is made with the location of their lower ends in divergent levels, and the leading section of the barrel is pointed, and the value of l the difference between the levels of the lower ends of the shelves and the wall defined by dependence
l = (0,3 0,5)a ,
where a is the distance between the outer flange edges of the tee.2. Pile on p. 1, characterized in that the wall of the tee below the shelves and pointed at least in a plane coincident with the plane of the wall.3. Pile on p. 1, characterized in that the shelf beam is located below the wall and pointed at least in a plane coincident with the plane of the shelves.4. Pile on p. 1, characterized in that the lower ends of the walls and shelves of the I-beam, located at different levels, sharpened.
SUBSTANCE: earthquake-proof pipe comprises a reinforced concrete structure. It comprises a cone-shaped base with a galvanised shell from sheet steel, is placed into a sand-concrete reinforced cylinder with a cone-shaped end, on the bottom of which there is granite sand, with a layer of around one metre. The space between a reinforced concrete pile and side parts of the cone-shaped shell are filled with sand for the height of the hollow cylinder.
EFFECT: provision of a reliable foundation, strengthening of a foundation preventing building damage during significant ground vibrations in seismically dangerous conditions, lower material intensity.
SUBSTANCE: invention relates to construction of hydraulic structures and can be used for creation of an enclosure, designed to protect the production floating platform under ice conditions of Arctic Shelf. Method comprises fitting a protective enclosure along the platform perimeter. Prior to fitting the platform in a design position along the platform perimeter, at least, one row of supports from metal piles of round section, buried in unstable bottom sediments or bedrocks are installed with clearance. Coolers are mounted in the piles and artificial freezing of water and ground around piles is performed, monolithic cylinders formed around piles: ice-ground - in the base and icy - in water, should contact with adjacent cylinders, forming continuous ice and ground in the base and icy in water protective anti-chock and impervious wall. Prior to said wall there is another row of supports from metal piles of round section, which is equipped with rotary cutters along the outer diameter.
EFFECT: technical result is improved efficiency and reduction of labor input of the method of engineering protection of floating production platform from ice effects under conditions of Arctic Shelf.
FIELD: bulkheads, piles, or other structural elements specially adapted to foundation engineering, particularly concrete or concrete-like piles cast in position with enlarged footing or enlargements at the bottom of the pile.
SUBSTANCE: reinforcement device is used to erect pile foundation with the use of foundation pile having at least one longitudinal cavity. Reinforcing device comprises a number of joined reinforcement members hingedly connected with central annular member located so that reinforcement device may be collapsed during installation and erected during device usage. Reinforcement device is connected to pile by at least one member working in tension. Foundation pile reinforced with the use of said device and method for foundation pile driving and pile bottom reinforcement are also disclosed.
EFFECT: increased uniformity of reinforcement distribution over pile bottom, improved compression and stretching force damping, decreased labor inputs and material consumption.
36 cl, 25 dwg
SUBSTANCE: invention relates to construction and can be used in structures' foundation, receiving considerable horizontal and pull out loads. Anchor pile includes shaft, reinforced by framework. Bottom part of pile consists of two pivotally connected to shaft quarters, located relative to each other bias section of shaft and allowing elongations on section of point, which are enclosed into removable metal sheath. Shaft is implemented with opening, in which it is inserted pin for removing of sheath. Quarters allow ability of turn at redriving.
EFFECT: perception of pull out loads.
FIELD: machine building.
SUBSTANCE: additional fixation of anchor driven into soil for a certain depth, is done by impression of sliding fixtures by working fluid. Hollow rod of anchor is arranged with hollow multiturn screw tip, lower blade of which is equipped with bits - fangs. Sliding fixtures represent multistep telescopic hydraulic cylinders of single-sided action arranged in cavities of bulges on case of screw tip blades. On upper end part of screw tip there is a bulge with slots for connection teeth of assembly rod, representing a pipe. In cavity of rod and screw tip there is an isolated line of working fluid supply.
EFFECT: improved retention capacity of anchor.
5 cl, 6 dwg
SUBSTANCE: anchor pile comprises a traction rod in the form of bars with identical diameter connected by means of couplings, and the first bar is equipped with a crown or a chisel. The pile is equipped with bars of increased diameter and connecting couplings with boring blades. Diameters of coupling holes with boring blades correspond to various diameters of bars.
EFFECT: reduced material intensity and reduced labour intensiveness in arrangement of an anchor pile.
SUBSTANCE: during arrangement of soil anchors in a structure comprising a traction rod in the form of separate bars, connecting couplings and a crown or a chisel, a coupling in the areas of anchor roots arrangement are replaced with couplings equipped with drilling blades and transverse holes for passage of a working fluid closed by temporary plugs.
EFFECT: reduced material intensity of a structure and reduced labour intensiveness.
SUBSTANCE: invention relates to construction and may be used in arrangement of pile foundations. To reduce material intensity and to increase reliability of design in a root pile with local flares, comprising a bit 11, rods 1, connecting couplings 3 and crown couplings 2 with cavities in drill blades 5, in which stop elements are installed, according to the invention, the stop element in each crown coupling 2 is made in the form of a valve made of a cone-shaped plunger 6 with a return spring 7, fixed inside the cavity, at the same time the diameter of the output hole 9 in the crown coupling 2 must be 1.5-2 times less than the diameter of the input hole 10.
EFFECT: reduced material intensity and increased reliability of a structure.
SUBSTANCE: invention relates to construction and can be used in structures of floating piles intended for construction of pile foundations, and erection methods of such piles. A pile having a shaft with an internal longitudinal cavity filled with concrete and a carrying capacity increasing device located in its lower part. The pile shaft is made in the form of a polymer pipe having external and internal longitudinal ribs, and the pile carrying capacity increasing device is made in the form of a support concrete bearing plate located under the pile shaft.
EFFECT: improvement of adhesion of pile surface with surrounding soil, increase of carrying capacity and reduction of material consumption.
8 cl, 5 dwg
SUBSTANCE: aseismic driven pile comprises a shaft with a sliding lower part and a wedge-shaped element arranged inside the latter, contours of which follow internal contours of the lower part of the shaft. The lower sliding part of the shaft is made with three pairs of triangular slots on the surface and additional yokes and reinforcement grids in their area. The wedge-shaped element is made with a lower part in the form of a quadrangular pyramid and is equipped with two fixing rods on an embedded part in the upper part of the point, and the lower part of the shaft is equipped with tubes put on fixing rods. On the outer surface of the shaft there are at least four curved grooves in the form of sine waves, longitudinally stretched from the lower sliding part upwards from the shaft, cavities of which are concentrates of moving seismic oscillations, besides, sections of closest approach of pairwise curved grooves make units that cause generation of transverse standing waves.
EFFECT: increased seismic stability of buildings and structures using driven piles, where concentration movement of longitudinal seismic waves is achieved.