Installation for concreting of piles

 

(57) Abstract:

The invention relates to the construction and can be used for concreting of piles. Installation for concreting of piles contains the vehicle with the lifting mechanism and the drilling tool, the composite along the length of the casing and bitonality pipes, hydraulic vibrator, a cap mounted on the lower end bitonality pipes, hollow Cirrus compactor-fibroscan flat steel stamping feathers and drive, with hydraulic vibrator and cap combined into a single node in a common housing on which are mounted a hydraulic clamp and shock absorbers, and the cap is at the bottom of the conical device, and the casing is made with a through Central opening for flow of concrete mix in bitonality pipe. The invention provides increased bearing capacity of the structure, water resistance and frost resistance of concrete building structures and solidity of the laid concrete to eliminate voids and cavities. 6 C.p. f-crystals, 11 ill.

The invention relates to the field of construction and can be used for concreting of piles, from which damental method "wall", and during the construction of quay walls and underwater concrete arrays of hydraulic structures.

Known installation for concreting of piles containing vehicle with a lifting mechanism, a feed hopper of a concrete mix, casing and integral length bitonality pipe, the conductor, the vibration exciter and drive (SU, N 382792, CL E 02 D 15/04, 1973).

Without diminishing the advantages of the known technical solutions, the downside of it is the increased consumption of materials and lack of effectiveness in the work for installation of equipment and supply of concrete mix into the hole.

The closest technical solution is to install for concreting of piles containing vehicle with a lifting mechanism and the drilling tool, the composite along the length of the casing and bitonality pipes, hydraulic vibrator, a cap mounted on the lower end bitonality pipe hollow Cirrus compactor-fibroscan flat steel stamping feathers and actuator (EN, N 2097489, CL E 02 D 5/38, 15/04, 27.11.97).

However, this solution also is not effective in the work, because they require a cumbersome and complicated Cove because of this flexible pipelines (pressure hoses (hydraulic hoses) of considerable length. In the installation becomes complicated in operation and maintenance, and the limited dimensions of the vibrator in the plan are forced to lay him in a reduced capacity.

We offer installation for concreting of piles is devoid of the above disadvantages and the most industrially applicable in operation due to the fact that it provides increased bearing capacity of the structure and its water resistance, frost resistance and guaranteed the integrity of the concrete base with the elimination of voids and cavities in the concrete mixture to a depth of 50 m with slump 6-8 cm at high performance, ease of technological operations, reliability of visual inspection of vibrating equipment and the possibility of using vibrators increased power.

Industrial applicability the proposed facility for concreting of piles is ensured by the fact that it includes the vehicle with the lifting mechanism and the drilling tool, the composite along the length of the casing and bitonality pipes, hydraulic vibrator, a cap mounted on the lower end bitonality pipe hollow Cirrus compactor is haunted merged into a single node with the General body, on which are mounted a hydraulic clamp for fixing on the upper end of bitonality pipe cap with a hydraulic vibrator, and dampers for reciprocating movement of the hydraulic vibrator in a vertical plane, while the cap is at the bottom of the conical device, and the case indoors was held through a Central hole for feeding the concrete mix in bitonality pipe.

In addition, the hydraulic vibrator shaft made without mutual mechanical connection of vibroverb with individual drive vibroverb from motors, section bitonality pipes and compactor-fibroscan interconnected vibration-resistant clamping roller, the flange sections bitonality pipe and the connecting bracket of the clamping bands are mutually abutting surface having a profile of wedges, and the flanges of the connecting brackets clamping bands are made with a tapered hole in which is inserted a conical clamping screw bushing, hydraulic clamp consists of two jaws connected by hydraulic cylinders, and in the cross section of each jaw is made by the cross-sectional shape of the connecting brackets clamping bands, the Central hollow shaft in the side of its parts have a flat face, located at an angle to the axis of vibroshena lying within 45-90 degrees, and located it at an acute angle to the top face. Drive installation contains the main and auxiliary pumps, power hydraulics, reversing valve, pressure relief and check valves, locking valve cut, pressure and drain line, the hydraulic motors of the drive shaft of the hydraulic vibrator and hydraulic clamp cylinders its control, while the main pump through the reversing valve connected to the hydraulic motors and the auxiliary pump through the reversing valve and the locking valve cut - hydraulic clamping cylinders, and line of hydraulic motors connected to the backbone of the clamping hydraulic cylinders hydraulic clamp through check valves and hydropneumoaccumulator reported, in turn, with lock.

In the case of immersion of the reinforcement cage in the hole after filling with concrete, reliability immersion is ensured by the fact that in the cavity of the frame pre-entered inventory rigid rod having at its lower part contact attachment with the bottom part of the frame; this provides translational movement of the armature down their gravel and sand piles in case pre-fill the hole with concrete mix, followed by immersion in her frame is provided, however, that the energy of vibration actions generated by the vibrator, with higher efficiency is passed through the inventory bar at the bottom face portion of the frame and reducing the harmful effects of dissipative forces damping vibrations transmitted to the depth directly through the frame.

The invention is illustrated by drawings, where Fig. 1 - shows a General view of the installation for concreting of piles; Fig.2 - depicts a hydraulic vibrator, longitudinal section; Fig. 3 is a cross section along a-a in Fig. 2; Fig. 4 is a cross section along B-B in Fig. 2; Fig. 5 is shown a base frame of the installation of Fig. 6 - bitonality pipe; Fig. 7 - clamping brace, side view; Fig. 8 is a view in plan; Fig. 9 is a diagram of the hydraulic equipment; Fig 10 is a flow chart of operation for concreting of piles; Fig. 11 is a flow chart of installation of the reinforcement cage.

Installation for concreting of piles contains drilling vehicle 1, a drilling rig working body 2, the mechanism push and eject the casing 3, a sectional casing pipe 4, a sectional bitonality pipe 5, inventory clamping bands 6, pipe concrete pump 7, the lifting mechanism 8, the mast of the drilling transport the suspended ring brackets 13, hollow Cirrus spatial compactor-fibroscan 14, stamping flat steel feathers 15, the hydraulic hoses 16, the base frame 17, the actuator 18, the Cabinet 19, lines 20, a counter 21 for fixing hydraulic vibrator in the transport position and the feeding cable 22.

Hydraulic vibrator is designed for excitation of technological vibrations of a given frequency and amplitude, and transmission of vibration actions to bitonality pipe, vibrola and concrete mix. The body of the vibrator 23 is made in the form of spatial welded in the center of the body are provided through a circular opening 24 for the passage of concrete mixture supplied through the top 25 or side 26 of the funnel, available in the housing. The lower part of the housing forms a cap 11 made in the form of a conical device 27, designed to facilitate the installation of the vibrator on bitonality pipe 5. Above the safety device is a hydraulic clamp 28, which consists of two identical semi-circular jaws 29 and 30 connected by hinges 31, 32, 33 and 34 through the housings 35 and rod 36 of the hydraulic cylinders 37 and 38. When the retraction of the rods of the jaws are forced closer together and take on the perimeter of the upper flange bitonality pipe 5. During vydvigaetsya the coaxial position of the jaw of the helmet relative to the vertical axis of the captured bitonality pipe. The vibrator has two symmetrically arranged vibroblade 41 and 42 driven in rotation from individual hydraulic motors 43 and 44. Shafts rely on Relicore bearings 45 and 46, is planted in a housing 23 and are protected by caps 47. At each vibroverb using keyed connections 48 and 49 fixed de-balancers 50 and 51, is fixed against axial offset spacers 52, 53 and 54. These sleeve freely mounted a non-balances 55. The de-balancers 50 and 51 pairs of rigidly interconnected axes 56 and spacers 57. The bolts 58 can be rearranged in aligned holes 59, made in the de-balancers 50 and 51.

Due to this rotation of vibroverb 41 and 42 there is a possibility of mutual angular displacement of non-balances 50, 51 and 55 non-balances to the stop of the 55 non-balances in the bolts 58 that provides speed regulation static moment of vibration actions. The outer parts of the non-balances covered with a protective shroud 60. The vibrator is provided with four symmetrically arranged in terms of the shock absorbers 12. They consist of cups 61, rigidly connected with the housing 23. In glasses placed the bottom 62 and the top 63 relative to the longitudinal strength of the ribs 64 of the housing 23 sets of springs, mutually drawn together by screws 65, to which equipment into a single design for ease of transportation in the back of a car or other vehicles, as well as for posting on the job site in the most convenient place under conditions of extreme compactness and security equipment. The frame has a base 66, has a supporting rails 67. Mounted on the frame is an integral part of the actuator 18: pumping station 68, the main pump unit 69, the Cabinet 19. Before pumping station and control panel provides the operator platform 70. On the opposite side of the frame is fixed cylindrical strut 21, the upper part of which has a flange similar to the flange bitonality pipes. This provides reinforcement at the front of the vibrator 10 by means of a cap 11 for the period of technological pauses in his work, during transportation of equipment, or store it in the place of the sludge with the simultaneous laying on the base frame Assembly hydraulic hose 16 and power cable 22.

Pump station 68 consists of an oil tank 71, provided with a filler neck, oil heaters and other necessary attributes. On top of the force plate 72 tank mounted auxiliary pump unit 73, consisting of a motor, gear pump and coupling. The plate 72 is also fixed block hydraulics 74, on which is also on the block are the control gauges and device for determining the frequency of oscillations of non-balances vibrator. All of the above closed protective casing 75. Tank 71 pumping station connected to the main pumping unit 69 of the suction pipe 76. The main pump unit includes an electric motor 77 and the axial piston variable pump 78 with handwheel regulation 79, the shafts of which are connected by the coupling. Motor control main and auxiliary pumps are made with push-button station 80, which is located in the immediate vicinity of the unit hydraulics 74. Starting and control electrical equipment electric motors and electric heaters mounted in the Cabinet 19, is connected to the supply cable 22. On the base frame there is also a tool box 81 and loop 82 that are required for lifting and relocation of the base frame with the equipment in operation.

Bitonality pipe 5 consists of mutually abutting sections 83 different lengths. Each section includes a shaft 84, made of tubular steel, and the end flanges 85 and 86, with the rear part of the conical surface 87 and 88. The flange 85 provided with a cylind 91. At the junction of the sections of the protrusion 89 is included in the cavity 91, after which the two coupled flange pressed split band 6. Each section is provided with diametrically spaced flat lugs 92 having holes 93 to capture sections of the lifting mechanism or commit when assembling bitonality pipe.

The band has two semicircular profile in terms of brackets 94 and 95, provided with a flange 96, which is made conical holes 97 embedded with a tapered threaded bushings 98. Profile bracket brace have tapered surfaces 99 and 100. Tightening the bandage is makeresizable bolts 101. When tightening the brace and the coupling sections bitonality pipe conical surface 87 and 88 of the flanges bitonality pipes are joined with conical surfaces 99 and 100 of bandages, and a conical sleeve 98 are firmly fitted in the tapered hole 97, all this ensures a reliable bond sections 83 bitonality pipes and their resistance to vibration.

Bitonality pipe Assembly can act as a rigid rod in the case of forced immersion of the reinforcement cage in the hole, pre-filled with a concrete mix.

Schematic diagram of the guy is 71, the motors 43 and 44 of the vibrator, the cylinders 37 and 38 of the cap, block hydraulics 74, a hydropneumatic accumulator 103, filters for cleaning the working fluid 104 and 105, the magnetic filter 106, the cooler 107, an oil heater 108, the valve 109 suction line 76 of the main pump and relief valve 110 main drain line 111.

Block hydraulics 74 includes reversing valves 112 and 113, safety valves 114 and 115, 116 locking valve cut, check valves 117 and 118 and the gauges 119, 120 and 121, valve 122.

According to the scheme of the hydraulic works in the following way. The main pump 78 takes the working fluid (oil) from the tank 71 through the pipe 76 through the valve 109, which in this period is open, and through the reversing valve 112 feeds the motors vibrator 43 and 44, the direction of rotation of the motors is determined by the working positions of the reversing valve 112. In the neutral position of the valve motors have a free run to their full stop. The magnitude of the flow of oil from the pump 78 to the vibrator and the associated frequency of rotation of vibroverb smoothly changed by the operator using the handwheel 79 regulator pump.

The pressure in the main pump is limited to n is dry 37 and 38 of the clamp heads are driven from the auxiliary pump 102 by setting the reversing valve 113 in one of the working positions. After fixing the vibrator on bitonality the pipe, the operator sets the valve 113 in neutral, and the pump 102 is disconnected from active work, spilling oil into the tank through line 123 under low pressure. Locking valve cut 116 his return valve 124 cuts off during this period, the cavity 125 and 126 of the cylinders from the external system, and the specified pressure and the necessary clamping the cap is provided with elasticity hydropneumatic accumulator 103, which is charged with fluid during actuation of the clamp. To secure the reliability of the hydraulic accumulator and maintain the necessary efforts to clamp cap are provided check valves 117 and 118, through these valves during the period of the vibrator according to one of the lines 127 or 128, depending on the direction of rotation of vibroverb, automatically charging the hydraulic accumulator, if he manages to lose power to a critical value, producing a compensation of leakage in the cylinders and lock. The ultimate pressure in the auxiliary pump 102 is controlled by the relief valve 115, custom gauge 120, and the pressure in hydropneumoaccumulator is controlled by the manometer readings 121.

The installation for Betonim vehicle 1 with the drilling of the working body 2, mechanism dives 3 and the sectional casing 4 in the soil to form a hole 129 in her place reinforcement cage 130 and bitonality pipe 5, sections which are interconnected by a casing, with a compactor-vibrostanok 14 on the end. On the upper flange bitonality pipe using hydraulic headgear fix the vibrator 10, raise the assembled construction for slings 20 lifting mechanism 8 and fix it on the top slice of the casing 4 of the inventory plug 131.

The concrete mix is served by truck-mounted concrete pump 7 or Kubla 132 in bitonality pipe through the upper hopper vibrator, or a truck through the side hopper vibrator. At the same time from the pumping station 17 through the pipes (hoses) 16 actuate the vibrator 10 in the "concrete" (Fig. 1 and 10A). In the concrete mixture will expire down bitonality pipe 5 and fills the space in the hole on the step height H (Fig. 10A), which is from several to a dozen meters. Unlock the clamp cap and remove the vibrator on support leg base frame. Remove the casing to a height H and dismantle it freed upper section 133 (Fig. 106), bitonality pipe 5 NR is agyenim mechanism 8, the vibrator 10 with bitonality pipe 5, produce the seal previously laid portion of the concrete mix 134 at a height H using stamps feather vibroshena 14 (Fig. 10V). Unlock the brace is raised above ground section 83 bitonality pipe 5 and through the lifting mechanism and the vibrator, which in this period off, carry and stack the vacated section away from work (Fig. 10g). The vibrator again fixed on the upper end of the shortened bitonality pipe and install it on the top slice of the casing 4 (Fig. 10D). The cycle of operation of the equipment is repeated in a similar manner with the end result of the laying and compaction of the concrete mix for the next step height H and the next until the final filling the hole with concrete mix to cover the entire height. As the filling of wells and the rise of technological equipment, produce uncoupling and removing the released sections of the casing and bitonality pipes.

For immersion reinforcing cage (Fig. 11) into the hole 129 in the case of pre-populate the concrete mixture 135, into the cavity of the frame 130 pre-entered inventory rigid rod whose role can perform bitonality pipe 5. The lower portion 136 of the rod (bitonality part 139 rod connecting link 140, on the rod with cap 11 put the vibrator 10, and the whole technological projectile posted by means of straps 20 lifting mechanism along the axis of the bore 129.

Under the action of the vibrator frame is driven in oscillatory motion and lifting mechanism is gradually lowered into the well to the design elevation of 141 (Fig. 11b). Then the upper part of the frame is detached from the rod, and the rod together with the vibrator is removed from the well up (Fig. 11b), while the vibrator 10 is not turned off, so the free extraction rod up is additional vibroplate concrete mix in the hole.

The invention, in addition to increasing grades of concrete and bearing capacity of the structure, providing water resistance and frost resistance of reinforced concrete building structures, guarantees the integrity of the concrete base with the elimination of voids and cavities, supply and laying of concrete to a depth of 50 m with slump 6-10 cm, saving cement in the amount of 150-200 kg per 1 cubic meters of concrete and ensure the "revival" of concrete mix for 6-8 hours in the case of forced breaks in the concrete and the elimination of marriage and the need for additional Foundation work, gives the possibility of the account for the reliability of the capture and retention cap bitonality pipe, simple and rapid operations to produce an Assembly-disassembly capacity-bonding sections bitonality pipe, use a shorter, and therefore cheaper and more reliable, flexible lines (hoses), easier and safer to operate equipment, to facilitate folding of the equipment in the process pauses, during its transportation and storage.

1. Installation for concreting of piles containing vehicle with a cargo mechanism and the drilling tool, the composite along the length of the casing and bitonality pipes, hydraulic vibrator, a cap mounted on the lower end bitonality pipe hollow Cirrus compactor-fibroscan flat steel stamping feathers and the actuator, characterized in that the hydraulic vibrator and cap combined into a single node with the General body, on which are mounted a hydraulic clamp for fixing on the upper end of bitonality pipe cap with a hydraulic vibrator and dampers for reciprocating movement of the hydraulic vibrator in a vertical plane, when the cap is at the bottom of the conical device, and the casing is made with a through Central otherevidence vibrator shaft made with individual drive vibroverb from the motors.

3. Installation under item 1, characterized in that section bitonality pipes and compactor-fibroscan interconnected vibration-resistant clamping bands.

4. Installation under item 1 or 3, characterized in that the flanges of the sections bitonality pipe and the connecting bracket of the clamping bands are mutually abutting surface having a profile of wedges, and the flanges of the connecting brackets clamping bands are made with a tapered hole in which is inserted a tapered threaded coupling sleeve.

5. Installation under item 1, characterized in that the hydraulic clamp is made in the form of two jaws connected by hydraulic cylinders, and in the cross section of each jaw is made by the cross-sectional shape of the connecting brackets clamping bands.

6. Installation under item 1, characterized in that the punch feathers of a compactor-vibroshena are located in the radial direction around the perimeter of the Central hollow shaft, in the side of its parts have a planar face positioned at an angle to the axis of the compactor-vibroshena lying in the range 45 - 90olocated thereto at an acute angle to the top face.

7. Installation under item 1, characterized in that the Pref is positive check valves, locking valve cut, pressure and drain line, the hydraulic motors of the drive shaft of the hydraulic vibrator and hydraulic clamp cylinders its control, while the main pump through the reversing valve connected to the hydraulic motors and the auxiliary pump through the reversing valve and the locking valve cut - hydraulic clamping cylinders, and line of hydraulic motors connected to the backbone of the clamping hydraulic cylinders hydraulic clamp through check valves and hydropneumoaccumulator reported, in turn, with lock.

 

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