A method of manufacturing a printed piles
(57) Abstract:The invention relates to the construction, namely, technology ramming piles and can be used in the installation of pile foundations in the process of strengthening and reconstruction of existing or construction of new buildings and engineering structures. The inventive method of manufacturing a printed piles includes drilling a cylindrical hole, filling electrically driven hardening material, the execution of it high-voltage electric discharges a working spark gap and the rise in height of the well. What's new is that the drilling and subsequent extraction of the drill implement the sustainability of its walls and leaving at the bottom of the wells of the sludge layer, and the discharger before filing-curing electrically conductive material installed along the axis of the borehole to the layer of sludge and produce its depth through the layer of slurry to the borehole bottom while delivering high-voltage discharges and seal the borehole walls, and flow into a well-curing electrically conductive material start on the achievement gap borehole bottom and continue the flow of this material before retrieving tnica. 1 C. p. F.-ly, 9 Il. The invention relates to the construction, namely, to the technology of producing piles in the borehole, and can be used in the installation of pile foundations in the process and reconstruction of existing or construction of new buildings and engineering structures.A known method of manufacturing a printed piles and device for its implementation  includes installation of valves and flow of solid material in the previously traversed by pneumotropica the borehole diameter less than the diameter of the generated piles and subsequent compaction-curing material, and simultaneously with the installation of the valve hole extend over the entire height, and the flow of solid material is carried out in conjunction with the formation of the camouflet broadening by a series of high-voltage electrical discharges, the number of which is determined from the desired radius camouflage broadening, radius camouflage broadening one discharge, the intensity of accumulation of irreversible deformation of the soil, and the seal hardening material produced by the height of the well high-voltage discharges.The disadvantages of this invention are the following: the difficulty and sometimes impossibility punching well because of the difficulty of removing the back from the well, the complexity of the accommodation on the very limited cross-sectional area of the punch of the reinforcement cage, hose solution, electrodes with a high voltage cable and the implementation of reliable electrical insulation of the electrodes and connections at a voltage of 6-8 kV.As a prototype of the selected known technical solution of the method of manufacturing a printed piles  i.e., the object of the same purposes, with the invention the greatest number of common essential features.The specified method of manufacturing a printed piles includes the drilling of wells, installation inventory electric spark gap, the flow in the well-curing electrically conductive material, an awakening of the high-voltage electrical discharges through the spark gap with a moving zone of excitation from the bottom up and the subsequent extraction of the discharger.However, the prototype has significant drawbacks that do not allow us to fully exploit the advantages of the proposed technology, since it is not guaranteed the quality of the barrel and the abutment piles due to the heterogeneity of the material of the barrel, under the fifth pile remains sludge, which at high-voltage discharges are not sealed itself and does not allow to reliably ultimaserial trunk.In the specified prototype after drilling a well to a predetermined depth in the bottom hole remains drilled the ground the height equal to the height of the drill bit, which is not lifted by the auger. In addition, when lifting the drill from the well height of the sludge layer grows due to the shedding of the soil with the drill, caving and vplyvania the borehole walls and filtering ground water from the surrounding soil. The thickness of the sludge layer can be up to 1-3 m depending on soil conditions and the depth of the well.Flow into the well conductive hardening material with simultaneous excitation in him a high-voltage electric discharges a working spark gap leads to additional collapse of the soil walls of the well, mixing soil, sludge, and ground water from entering hardening conductive material and the formation of a mixture of native and unknown composition, density and properties. It is not possible to accurately estimate the bearing capacity of the pile in the strength of the material.The sludge on the bottom of a well, locked the post above mixture elektroprovidnogo hardening material, soil and water and not pushed up, as it would happen with the arrival of more techie discharges, performed on the lower horizon, are produced in the sludge and almost not condense the surrounding soil Foundation.High-voltage electrical discharges in the subsequent horizons form the pile shaft, but not homogeneous. Eventually formed the pile is supported on the slurry and subsequently by filtering the water from the slurry into the surrounding soil can get more vertical deformation and cause the reduced drag of the pile heel that will reduce the carrying capacity of the formed pile in the Foundation soil.In deep wells, when the armature frame and rastvorovoda pipe compound and consist of sections of length equal to the length of the drill rod, the lowering is performed in stages with the consolidation of the omitted parts, the lifting of the drilling rod, the connection of the upper sections and the subsequent lowering to the bottom. This leads to an increase of time spent on production piles.The present invention is to provide a novel method of manufacturing printed piles, which would allow to get a quality barrel and heel piles, high bearing capacity and strength of the material of the barrel, and would reduce the time izgotovlenie well, installation inventory electric spark gap, the flow in the well-curing electrically conductive material, the excitement in him a high-voltage electric discharges through a spark gap with a moving zone of excitation from the bottom up and the subsequent extraction of the spark gap, drilling and subsequent extraction of the drill implement the sustainability of its walls and leaving at the bottom of the wells of the sludge layer, and the discharger before filing-curing electrically conductive material installed along the axis of the borehole to the layer of sludge and produce its depth through the layer of slurry to the borehole bottom while delivering high-voltage discharges and seal the borehole walls, and flow into the well-curing electrically conductive material begin to achieve the discharger borehole bottom and continue the flow of this material before removing the spark gap from the well, and the excitation discharge is carried out at the overlap hardening material discharger.In this case, removing the drilling Assembly can exercise slow the rise of the drilling string from the well when it is rotating at a slow speed.Work discharger may coaxial ustanavlivaetsya.This technical solution the whole set of essential distinctive features allows you to make ramming piles with high bearing capacity for the Foundation soil and the material strength of the piles due to the availability of the following operations:
ensuring the sustainability of the walls of the borehole from caving, which is achieved, for example, slow the rise of the drill from the bottom when it is rotating at a low speed. As a result of this borehole wall rubbing clay soil, raised from the lower layers, and become smoother, which reduces the possibility of their collapse, vplyvania and reduces the filtration of water from the surrounding soil into the well;
coaxial lowering and moving the working spark gap in the well allows you to create printed pile symmetrical with respect to the axis of the borehole, which is especially important in deep wells with large diameter;
execution of high-voltage electrical discharges in the lowering of a spark gap in the slurry without the concurrent filing of a conductive hardening of the material can be sealed to the walls of the well by the pressure of the discharge in a liquid medium, chop, stir and make more ohms hardening material, entering the borehole bottom;
submission conductive hardening material under pressure at the well bottom with reinforced walls and filled with a homogeneous dispersed and less dense mixture will allow you to eliminate it completely, providing filling the entire volume of the wells homogeneous hardening conductive material specified strength;
a series of high-voltage discharges only in a homogeneous conductive hardening the material with a permanent filling the cavity formed from the next discharge, the same material will significantly increase the diameter of the hole due to the compaction of soil in the bottom and sides, greatly increasing its strength characteristics. In the result, the formed pile will be in the soil, which will have a higher bearing capacity;
all the top high-voltage discharges are performed in a homogeneous hardening conductive material, extending the borehole wall and condensing downstream solution, increasing its density and strength and increasing its load bearing capacity of the material;
the simultaneous lowering of reinforcement cage with centered it work discharger pozwolenie piles especially in deep wells, additionally arises when the engagement of a spark gap for the transverse rods of the frame.The present invention improves the existing scientific and technical level in the field of manufacturing printed piles, as are new operations and coordinated between all the operations of the method according to the impact on the elements of the production piles, for example, pre-cleaned well from cuttings, and then supported the homogeneity of the material from which made the pile.In Fig. 1 shows the penetration of a cylindrical borehole drilling machine; Fig. 2 strengthening the borehole wall during the passage of the well; Fig. 3 the formation of sludge in the well; Fig. 4 coaxial bore, a lowering it working spark gap of Fig. 5 the beginning of the high-voltage electrical discharges in the sludge during the passage through it of the working spark gap of Fig. 6 the beginning of the feeder hardening conductive material while achieving a work discharger borehole bottom; and Fig. 7 high-voltage electrical discharges in conductive hardening the material after plugging them the height position of the working device in the well; Fig. 8 the new position of the working device in the well; Fig. 9 form ramming piles.
FIELD: building, particularly pile foundation building.
SUBSTANCE: method involves drilling well; placing inventory casing pipe in well, wherein casing pipe has closed lower end and is provided with inventory electrical discharger; feeding concrete mixture in well and initiating high-voltage electrical discharges in well along with removing casing pipe and forming shaft. Well is formed by driving inventory casing pipe in ground; sealing casing pipe from top thereof and arranging check valves used for concrete mixture pouring, for supplying pressurized air and water, in upper pile part; forming channels for concrete mixture passage in casing pipe; providing above channels with self-opening valves. Electric discharger is fixedly connected to casing pipe so that discharger extends beyond lower part thereof and form lower casing pipe end closed when casing pipe is driven in ground. Inventory casing pipe is driven in ground and lower end thereof is deepened in support layer by pressing action combined with high-voltage electric discharge energy. Casing pipe is removed from ground and shaft forming is performed simultaneously with pulling static load application, feeding compressed air and initiating electrical discharges in concrete mixture.
EFFECT: increased load bearing capacity of cast-in-place pile.
FIELD: building structures, particularly shallow foundations.
SUBSTANCE: method involves creating well by ground excavation, introducing preparatory portion of hardening material in well hollow including calculated part of hardening material; arranging explosive charge in lower well part; securing explosive charge; blowing explosive charge up to create cavity for widened foundation post part; crushing and widening above calculated part after explosion; introducing additional portion of hardening concrete in well up to 4/5 of well height; filling it with calculated part of above material portion. Concrete for casting is used as preparatory hardening material.
EFFECT: reduced time, increased simplicity of foundation building and reliability.
2 cl, 5 dwg
FIELD: building and construction.
SUBSTANCE: method includes serial vibration immersion of inventory elements into soil, which are mated between each other, and their following vibration extraction with concurrent filling of hollow in soil with concrete mixture. Inventory elements are used, which are made in form of profiled posts, having gates in lower portion, closed during immersion in soil and opened by flexible links during extraction of elements from soil and feeding of concrete mixture. At the same time profiled elements of longitudinal walling have lesser length, than length of profiled elements of vertical posts, which during immersion are pressed in for greater depth than profiled elements of longitudinal walling. First, profiled element of longitudinal walling is immersed, and then via guiding conductor profiled element of vertical post is densely mated to it and is than immersed. Concrete mixture is loaded in profiled element of longitudinal walling with its extraction with open gates and extracted element is immersed in next position adjacently to previous profiled element of vertical post being in soil. Concrete mixture is loaded into profiled element of vertical post during its extraction with open gates and extracted element if immersed into following position with concurrent mating to previous profiled element of longitudinal walling with use of guiding conductor. Then inventory elements are immersed again. Device for construction of bearing-limiting structures in soil includes crane or pile driver with vertical guide, vibration immersion driver and at least two inventory hollow elements. Inventory elements are made in form of profiled elements of longitudinal walling and profiled elements of vertical posts. Profiled elements of longitudinal walling have length less than length of profiled elements of vertical posts, which are made of hollow rectangular profiles, rigidly interconnected by solid rib along transverse axis along whole height of element, while vertical guide in lower portion is provided with guiding conductor.
EFFECT: higher efficiency, broader functional capabilities.
2 cl, 13 dwg
FIELD: building, particularly piles for permanent and temporary foundation structures and artificial bases.
SUBSTANCE: method involves boring well; supplying hardening material in well; forming high-energy electric pulses to generate electric discharges with the use of discharger moving through hardening material; generating high-energy low-voltage pulses and forming additional low-energy high-voltage pulse simultaneously with generating each high-energy pulse to excite initiative electric discharge in moving discharger.
EFFECT: increased operational reliability and electric safety.
2 cl, 2 tbl, 1 dwg
FIELD: building, particularly piles for permanent and temporary foundation structures and artificial bases.
SUBSTANCE: device has spark-discharge apparatus linked to discharger and including high-energy capacity storage with commutator. Device also has additional initiating electrode arranged in discharger and connected to low-energy high-voltage supply through another commutator. Both commutators are seriously connected through synchronizer to provide simultaneous operation of both commutators. Capacity storage of spark-discharge apparatus is of low-voltage type and connected with discharger trough low-voltage cable.
EFFECT: increased operational reliability and electric safety.
FIELD: building, particularly to erect foundations of artificial structures.
SUBSTANCE: method involves drilling hole in ground; arranging casing pipe in the hole; determining the levels of silty interlayer locations; immersing reinforcement case with retained form in hole, wherein retained form is made as geotextile shell and connected to reinforcement case at silty interlayer location zone. Shell has height H, which is equal to sum of at least two reinforcement case diameters and silty interlayer thickness and exceeds above zone ends for at least pile diameter value.
EFFECT: extended range of cast-in-place pile erection methods with the use of removable casing pipes, increased quality and reliability of pile building is silty ground or in ground with silty, namely sapropel, interlayers.
6 cl, 3 dwg
FIELD: building, particularly pile foundations preferably built in weak ground, as well as industrial and civil building to erect new houses and structures and to reinforce foundation of existent ones.
SUBSTANCE: method involves driving casing pipe with removable head and injection pipe installed inside it in ground; injecting hardening grout in formed hole through injection pipe, wherein grout is initially fed in hole area defined between head and lower rest installed in casing pipe, through which injection pipe passes; lifting casing pipe with injection pipe after injection process termination; fixing casing and injection pipes; supplying hardening grout in another hole area defined between rest and preformed pile body; injection-forming pile body and repeating above operations up to casing pipe removal from ground. Injection zone is defined within the boundaries of homogenous ground. Hardening ground is supplied in each area under pressure determined for ground of each injection zone from a given relation. Additional rest is installed on injection pipe above lower rest, wherein above injection pipe part is provided with perforation. When additional support reaches ground surface casing pipe is lowered so that perforated injection pipe part is left inside the hole. After that hardening grout is injected in above hole area and casing pipe is lifted without injection pipe movement. After casing pipe removal from ground injection pipe is cut above additional rest so that perforated injection pipe part is left in formed pile body. Method of injection pile erection involves driving casing pipe with removable head and injection pipe installed inside it in ground; injecting hardening grout in formed hole through injection pipe, wherein grout is initially fed in hole area defined between head and lower rest installed in casing pipe, through which injection pipe passes; lifting casing pipe with injection pipe after injection process termination; fixing casing and injection pipes; supplying hardening grout in another hole area defined between rest and preformed pile body; injecting above pile body and repeating above operations up to casing pipe removal from ground. Injection zone is defined within the boundaries of homogenous ground. Hardening ground is supplied in each area under pressure determined for ground of each injection zone from a given relation. Additional rest is installed on injection pipe above lower rest. Arranged between the rests is reinforcing frame, which is left in pile body when additional rest reaches ground surface and after casing and injection pipes removal from hole.
EFFECT: increased strength, density and uniformity along pile height and increased load-bearing capacity.
4 cl, 10 dwg
FIELD: building, particularly pile forming in grounds having macroporous surface layers, loamy underlying layers and interlayers of muddy clay and loose sandy soils.
SUBSTANCE: method involves driving retrievable shell with releasable metal head having ferrule on upper end thereof, wherein the ferrule is inserted in shell and head ferrule is provided with perforation orifices; immersing head in ground on reaching weak ground interlayer, wherein head immersion is provided by rod arranged in shell, so that perforation orifices of lower ferrule row project out of the shell; substituting the rod for pipe with packer, which injects fixer in weak ground; lifting pipe with packer; lowering shell to next weak ground interlayer and repeating above operations to project next perforation orifices of the next ferrule row and to inject fixer; lowering the shell to design mark; filling the hole with concrete and removing the shell.
EFFECT: increased load-bearing capacity of side pile surface.
FIELD: building, particularly methods or apparatus for placing sheet pile bulkheads, piles, mould-pipes, or other moulds.
SUBSTANCE: method involves driving two differing invented profiling members, namely additional and main ones, in ground to create invented profiling unit. Additional invented profiling member is driven in ground along with main one for lesser depth and is used to create outer waterproofing means. Before vibratory additional member removal the member is filled with waterproofing composition. The additional member is removed after main profiling member freeing from ground.
EFFECT: extended technological capabilities and increased efficiency due to creation of solid elongated bearing-and-enveloping structure in ground.
3 cl, 7 dwg
FIELD: construction, particularly to erect cast-in-place piles during building erection in immediate proximity to existent buildings and building structures, particularly to form all-purpose foundations, including ones to be built in soft soil.
SUBSTANCE: cast-in-place pile erection method involves drilling hole in ground with the use of drilling tool; concreting the hole and creating ground-and-cement case by simultaneous drilling and cementing operations in direction transversal to drilling axis. Cementing is carried out with the use of distribution member provided with nozzles having (2-5)·10-3 m diameters. Hole cementing rate is determined from a given relation. Hole concretion is executed as drilling tool is moved in reverse direction. Distribution member nozzles have diameters of (10-20) 10-3 m and provide concreting rate determined from a given relation. The drilling tool is provided with auger.
EFFECT: possibility of foundation building in soft ground, decreased foundation erection time along with strength and load-bearing property retention.
2 ex, 1 tbl
FIELD: building, particularly for constructing foundations of various building structures.
SUBSTANCE: bearing pile comprises head, rod and tip fixed to embedded rod part by embedded member. The tip is formed of thermoplastic concrete and has electric heater located inside the tip. Electric heater heats the tip after driving thereof into ground as far as it will go to obtain softening temperature of 80-150°C. Then the pile is fully driven in ground. Electric heater wires are placed in tube in longitudinal rod direction and brought outside under pile head for connection thereof with electric power source.
EFFECT: increased load-bearing pile capacity due to provision of widened pile tip support area.
2 cl, 5 dwg
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
FIELD: construction, particularly bored piles with enlarged footing or enlargements at the bottom of the pile.
SUBSTANCE: method involves drilling well; filling the well with concrete mix and non-detonating composition including fuel and oxidizer; igniting non-detonating composition by applying low-voltage pulse to electric igniter and combusting non-detonating composition in deflagration regime to create camouflet void with following concrete mix hardening. The fuel is solid hydrocarbon selected from polyethylene, polypropylene and polystyrene. The oxidizer is sodium or potassium chlorate. Non-detonating composition is supplied in well before well filling with concrete mix.
EFFECT: decreased pile production time due to accelerated concrete mix hardening and improved produced pile quality.
SUBSTANCE: invention refers to building, in particular, to strengthening of the bases under the basements. The way of strengthening of the basement erected on waterlogged priming coats and near to the located constructions includes supply of early strength concrete in the metal tubing established in driven wells, drilled through a basic part of the basement and a ground. Pipes are made with the welded boots, in pipes lower explosive charges and fill with early strength concrete, then the explosive charges are detonated, remaining hollownesses of driven wells and pipes are filled with early strength concrete.
EFFECT: provision of reliable strengthening of the basements erected in waterlogged priming coats and near to located constructions; increase of load-carrying capacity.
SUBSTANCE: invention is related to methods for arrangement of pile foundations for structures, to pile foundations and shell structure for creation of widened foot for pile foundations. Method for creation of pile foundation for structures, according to which the following stages are executed on site to arrange the mentioned foundation - well for installation of foundation pipe is drilled with the help of the first auger drill. The following section is drilled under lower end of installed foundation pipe. Cavity is arranged in the specified section by means of scraper and pressure of water jet. Loose soil is removed from specified cavity by mentioned first drill. Pipe for set of tools and accessories with the second auger drill and flexible shell that envelopes the lower part of the second specified drill is lowered through foundation pipe into lower part of specified section. Excess pressure is built up in specified shell, and moulding material is injected into specified cavity, surplus of which is then removed by the second auger drill. After mentioned material hardens, the specified shell is blown off and removed via specified foundation pipe. Reinforcing device is lowered into foundation pipe. Concrete material is poured into foundation pipe, at that specified cavity is filled, and specified reinforcing device is embedded into concrete, thus creating widened foot for foundation pipe. Versions of method and pile foundation are also stated.
EFFECT: higher stability and resistance to compressing and stretching forces, lower material intensity.
5 cl, 26 dwg