CN201738313U - Wet-method pile splicing device for hole-drilling pouring pile - Google Patents

Abstract

The utility model relates to a wet-method pile splicing device used under the condition that a hole-drilling pouring pile is broken, which is characterized in that: the pile splicing device comprises a choke plug and a conduit, wherein the conduit comprises a bottom pipe and 2 to 100 branch pipes, and the branch pipes are in threaded connection; a sleeve pipe of the choke plug is inserted into the lower end part of a first steel pipe of the bottom pipe, a left hook of the choke plug is hung on a left hanging ring of the bottom pipe, and a right hook of the choke plug is hung on a right hanging ring of the bottom pipe; the upper end of the first steel pipe of the bottom pipe is inserted into the female end of a second steel pipe of the first section of branch pipe, and a first circular nut of the bottom pipe is in threaded connection with the female end of the second steel pipe of the first section of branch pipe. The wet-method pile splicing device has the characteristics of simple structure and high efficiency.

Description

The wet pile extension device of bored pile

Technical field

Wet pile extension device when the utility model relates to a kind of bored pile and the broken pile situation occurs.

Background technology

Bored pile is the stake a kind of commonly used type of building foundation construction processing and since its have easy construction, cost rationally, advantage such as soil property compliance is strong, in all kinds of foundation constructions such as industry and civilian construction, bridge, be used widely.But, control to the bored pile construction process requires very strict, careless slightly in the construction, the faults such as hole, necking down of collapsing gently then appear, the pile quality grade is reduced, heavy then serious quality accidents such as broken pile, useless stake occur, deal with and bother very much, cause the project construction delay simultaneously, construction cost is significantly increased.Therefore, bored pile must be checked on to the strict control of critical process in work progress, avoids or reduce the generation of quality accident.

The factor that influences pile quality is more, selection, the quality of mud off, the system peace quality of reinforcing cage, concrete as geological condition, weather conditions, bore process water multiple factors such as process control, status of equipment, therefore in practice of construction, the phenomenon that broken pile occurs still is difficult to eliminate fully, must further investigate the processing method of broken pile.

After broken pile appears in bored pile, generally have piling, original position to dash multiple processing methods such as (brills) hole, pile extension, advantages such as wherein few with the disposal cost of pile extension method, duration weak point, easy construction under the situation that condition is permitted, are extensively adopted by construction enterprises.Existing bored pile pile extension method has following two kinds of methods:

1, wet connection: after being applicable to broken pile, also not initial set of concrete placing is transferred conduit once more by variety of way, again the method for placing of concrete.

2, dry receive: concrete placing solidifies fully, and the hand excavation is to the broken pile place, behind the cleaning butt joint pile crown, and the method for placing of concrete once more.

Summary of the invention

The purpose of this utility model is to provide a kind of wet pile extension device of bored pile simple in structure.

To achieve these goals, technical solution adopted in the utility model is: the wet pile extension device of bored pile, it is characterized in that it comprises plug and conduit, conduit comprises bottom tube and being in charge of, being in charge of is 2-100, be in charge of be in charge of between by being threaded; In the bottom of first steel pipe of the sleeve pipe insertion bottom tube of plug, the left side of plug buckles on the left link of bottom tube, and the right side of plug buckles on the right link of bottom tube; In the female end of second steel pipe of being in charge of of the upper end insertion first segment of first steel pipe of bottom tube, first round nut of bottom tube is threaded with the female end of second steel pipe of being in charge of of first segment.

The beneficial effects of the utility model are: this wet pile extension apparatus structure is simple, cheap, efficient is high, it is standing in the construction plant that but batch machining is produced, and the broken pile situation occurs, comes into operation immediately, finish on-the-spot instant wet pile extension, the waste of a large amount of manpower and materials that saving broken pile situation causes.

Description of drawings

Fig. 1 is the structural representation of the wet pile extension device of the utility model bored pile;

Fig. 2 is the structural representation of the plug of the utility model wet pile extension device;

Fig. 3 is the vertical view of Fig. 2;

Fig. 4 is along the sectional view of A-A line among Fig. 2;

Fig. 5 is the structural representation of the bottom tube of the utility model wet pile extension device;

Fig. 6 is the structural representation of being in charge of of the utility model wet pile extension device;

Fig. 7 is the schematic diagram of the utility model pile extension;

Among the figure: 1-blade, 2-circular cone tube, 3-sealing ring, 4-base plate, the 5-sleeve pipe, 6-left side hook, the right hook of 7-, the 8-joint ring, 9-left side link, the right link of 10-, 11-first steel pipe, 12-first baffle ring, 13-first bulge loop, 14-the one O type circle, 15-first round nut, 16-second steel pipe, 17-second baffle ring, 18-second bulge loop, 19-the 2nd O type circle, 20-second round nut, 21-female end, 22-plug, the 23-bottom tube, 24-is in charge of, 25-ground, 26-mud, 27-concrete, 28-concrete pulp mixture, 29-is concrete placing, 30-pile body, 31-reinforcing cage.

The specific embodiment

As shown in Figure 1, the wet pile extension device of bored pile, it comprises plug and conduit, conduit comprises bottom tube and is in charge of, be in charge of and be 2-100 (concrete quantity is determined according to the broken pile depth), be in charge of be in charge of between [its locking direction is: plug and bottom tube disengaging direction (opposite direction that plug and bottom tube are locked) by being threaded; Also be the locking direction that first round nut 15 of bottom tube is threaded with the female end of second steel pipe of being in charge of 16 of first segment]; In the bottom of first steel pipe 11 of the sleeve pipe 5 insertion bottom tubes of plug, the left side hook 6 of plug buckles on the left link 9 of bottom tube, and the right side of plug hook 7 buckles on the right link 10 of bottom tube; Insert being in charge of of first segment in the female end 21 of second steel pipe 16 of (below be in charge of) upper end of first steel pipe 11 of bottom tube, and first round nut 15 of bottom tube is threaded with the female end of second steel pipe of being in charge of 16 of first segment.

As Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, described plug comprises blade 1, circular cone tube 2, sealing ring 3, base plate 4, sleeve pipe 5, left side hook 6, right hook 7, joint ring 8, base plate 4 is annular (middle part is a circular port), the upper end of circular cone tube 2 is stub end (little head end is positioned at the below) and is openend, (as welding) fixed in the lower surface of the upper end of circular cone tube 2 and base plate 4,2-10 sheet blade 1 is welded on the lower surface and circular cone tube 2 of base plate 4, it is (uniform that 2-10 sheet blade 1 is positioned at the outside of circular cone tube 2, present embodiment adopts 4 blades 1, and the bottom of blade is pointed); The upper surface welding of the lower end of sleeve pipe 5 and base plate 4, the left side of sleeve pipe 5 is provided with left side hook 6, the upper surface welding of the lower end of left side hook 6 and base plate 4, the right side of sleeve pipe 5 is provided with right hook 7, the lower end of right hook 7 and the welding of the upper surface of base plate 4, be with sealing ring 3 on the base plate 4, sealing ring 3 is positioned at the outside (sealing ring 3 is between left side hook 6, right hook 7 and sleeve pipe 5) of sleeve pipe 5; Sleeve pipe 5 is provided with closure gasket groove, and joint ring 8 is enclosed within the closure gasket groove.

As Fig. 1, shown in Figure 5, described bottom tube comprises left link 9, right link 10, first steel pipe 11, first baffle ring 12, an O type circle 14, first round nut 15, the bottom left surface of first steel pipe 11 is welded with left link 9, and (left link is made up of minor axis and diagonal brace, one end of minor axis is welded on first steel pipe 11, the upper end of diagonal brace and 11 welding of first steel pipe, the lower end of diagonal brace and the welding of the other end of minor axis; When diagonal brace is used to lift by crane conduit, prevent that minor axis from tangling reinforcing cage), the bottom right flank of first steel pipe 11 is welded with right link 10, and (right link 10 is made up of minor axis and diagonal brace, one end of minor axis is welded on first steel pipe 11, the upper end of diagonal brace and 11 welding of first steel pipe, the lower end of diagonal brace and the welding of the other end of minor axis), the internal diameter of first steel pipe 11 is greater than the external diameter 0-10mm of the sleeve pipe 5 of plug; The upper end of first steel pipe 11 is provided with first bulge loop 13, (first bulge loop 13 and first steel pipe 11 are structure as a whole first baffle ring 12, first baffle ring 12 is welded on first steel pipe 11, first baffle ring 12 is positioned at the below of first bulge loop 13), first round nut 15 that is used to be threaded is enclosed within on first steel pipe, 11, the first bulge loops 13 between first bulge loop 13 and first baffle ring 12 and is shelved with an O type circle 14.

As Fig. 1, shown in Figure 6, comprise second steel pipe 16, second baffle ring 17, the 2nd O type circle 19, second round nut 20 described being in charge of, the upper end of second steel pipe 16 is provided with second baffle ring 17, (second bulge loop 18 and second steel pipe 16 are structure as a whole second bulge loop 18, second baffle ring 17 is welded on second steel pipe 16, second baffle ring 17 is positioned at the below of second bulge loop 18), second round nut 20 that is used to be threaded is enclosed within on second steel pipe, 16, the second bulge loops 18 between second baffle ring 17 and second bulge loop 18 and is shelved with the 2nd O type circle 19; The upper end of second steel pipe 16 is the socket end, and the lower end of second steel pipe 16 is a female end 21, is provided with external screw thread outside the female end 21, and the internal diameter of female end 21 is greater than the external diameter 0-10mm of socket end; The internal diameter of female end 21 is greater than the external diameter 0-10mm of first steel pipe, 11 upper ends of bottom tube.

As Fig. 1, shown in Figure 7, a kind of wet pile extension method of bored pile, it comprises the steps:

1) the wet pile extension device of preparation bored pile: the wet pile extension device of bored pile comprises plug 22 and conduit, and conduit comprises bottom tube 23, is in charge of 24, and being in charge of is 2-100 (concrete quantity is determined according to the broken pile depth); The sleeve pipe 5 of plug is inserted in the bottom of first steel pipe 11 of bottom tubes, rotate counterclockwise first steel pipe 11 of bottom tube, the left side hook 6 of plug is buckled on the left link 9 of bottom tube, the right side hook 7 of plug is buckled on the right link 10 of bottom tube, thereby plug is installed on the bottom of bottom tube;

2) detect and write down broken pile depth L1 with lining rope, concrete perfusion 27 in bottom tube 23, owing to have plug 22 to get lodged in the bottom of bottom tube 23, so concrete will remain in the bottom tube 23; The upper end of first steel pipe 11 of bottom tube is inserted in the female end 21 of second steel pipe of being in charge of 16 of first segment, first round nut 15 of bottom tube is threaded with the female end of second steel pipe of being in charge of 16 of first segment, to being in charge of of first segment of interior concrete perfusion; 24 transferred in the boring being in charge of of the plug 22, bottom tube 23 and the first segment that link together, be in charge of being in charge of of next joint that is threaded at first segment, (the L1+1 joint divides a length of tube when the total length that connects rear tube adds the length that a joint is in charge of greater than the broken pile degree of depth, 1 joint divides length of tube to be about 2.6m), record connects rear tube length overall L; Concrete of perfusion in simultaneously every company one joint is in charge of makes conduit and the concrete weight buoyancy greater than conduit;

3) there is the lower end of concrete conduit to lift from the height of drilling orifice 0.45-0.55m whole filling, plug 22 is aimed at the broken pile center, transfer conduit then fast, utilize the impulse inertia of conduit and conduit inner concrete, plug 22 and bottom tube 23 are passed concrete pulp mixture 28, (tube insertion depth is L3, conduit length overall L=L3+L1+L2 in the concrete placing 29 at insertion broken pile place; The bottom of plug 22 is made up of longitudinal blade and circular cone tube, and is long-pending less with concrete surface, is beneficial to insertion); Measure and elevate above the soil at this moment 25 height L2 of record conduit, pass through formula: the height L2 that tube insertion depth L3=conduit length overall L-broken pile degree of depth L1-conduit elevates above the soil, calculate tube insertion depth L3; When tube insertion depth L3 does not reach a joint and divides length of tube, utilize modes such as the mechanical arm of backhoe or crane lift heavy thing to press down the upper end of conduit, make tube insertion depth L3 divide a length of tube more than or equal to a joint;

4) clockwise direction steering nozzle (be plug and bottom tube locking counter-rotation conduit) then, make plug and bottom tube break away from that (because the resistance of the blade of plug in concrete placing be greater than the catheter surface and the frictional force of concrete placing, so both produce slip; Minor axis is left-handed the connection with hook, and dextrorotation direction steering nozzle can make plug and bottom tube break away from); This moment, the conduit inner concrete 27 was gushed out, and mud 26 is discharged in the boring, and plug is stayed in the concrete placing (being pile body 30); And then in boring, carrying out concrete continuous pouring, the broken pile place in the boring is promptly connected.

Claims (4)

1. the wet pile extension device of bored pile is characterized in that it comprises plug and conduit, and conduit comprises bottom tube and being in charge of, and being in charge of is 2-100, be in charge of be in charge of between by being threaded; In the bottom of first steel pipe (11) of the sleeve pipe of plug (5) insertion bottom tube, the left side hook (6) of plug buckles on the left link (9) of bottom tube, and the right side of plug hook (7) buckles on the right link (10) of bottom tube; In the female end (21) of second steel pipe of being in charge of (16) of the upper end insertion first segment of first steel pipe (11) of bottom tube, first round nut (15) of bottom tube is threaded with the female end of second steel pipe of being in charge of (16) of first segment.

2. the wet pile extension device of bored pile according to claim 1, it is characterized in that: described plug comprises blade (1), circular cone tube (2), sealing ring (3), base plate (4), sleeve pipe (5), left side hook (6), right hook (7), joint ring (8), base plate (4) is an annular, the upper end of circular cone tube (2) is a stub end, the lower surface of the upper end of circular cone tube (2) and base plate (4) is fixed, 2-10 sheet blade (1) is welded on the lower surface and circular cone tube (2) of base plate (4), and 2-10 sheet blade (1) is positioned at the outside of circular cone tube (2); The lower end of sleeve pipe (5) and base plate (4) welding, the left side of sleeve pipe (5) is provided with left side hook (6), the lower end of left side hook (6) and base plate (4) welding, the right side of sleeve pipe (5) is provided with right hook (7), the lower end of right hook (7) and base plate (4) welding, be with sealing ring (3) on the base plate (4), sealing ring (3) is positioned at the outside of sleeve pipe (5); Sleeve pipe (5) is provided with closure gasket groove, and joint ring (8) is enclosed within the closure gasket groove.

3. the wet pile extension device of bored pile according to claim 1, it is characterized in that: described bottom tube comprises left link (9), right link (10), first steel pipe (11), first baffle ring (12), an O type circle (14), first round nut (15), the bottom left surface of first steel pipe (11) is welded with left link (9), the bottom right flank of first steel pipe (11) is welded with right link (10), and the internal diameter of first steel pipe (11) is greater than the external diameter 0-10mm of the sleeve pipe (5) of plug; The upper end of first steel pipe (11) is provided with first bulge loop (13), first baffle ring (12), first round nut (15) that is used to be threaded is enclosed within first steel pipe (11) between first bulge loop (13) and first baffle ring (12), is shelved with an O type circle (14) on first bulge loop (13).

4. the wet pile extension device of bored pile according to claim 1, it is characterized in that: comprise second steel pipe (16), second baffle ring (17), the 2nd O type circle (19), second round nut (20) described being in charge of, the upper end of second steel pipe (16) is provided with second baffle ring (17), second bulge loop (18), second round nut (20) that is used to be threaded is enclosed within second steel pipe (16) between second baffle ring (17) and second bulge loop (18), is shelved with the 2nd O type circle (19) on second bulge loop (18); The upper end of second steel pipe (16) is the socket end, and the lower end of second steel pipe (16) is female end (21), and female end (21) is outer to be provided with external screw thread, and the internal diameter of female end (21) is greater than the external diameter 0-10mm of socket end; The internal diameter of female end (21) is greater than the external diameter 0-10mm of first steel pipe (11) upper end of bottom tube.

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