CN204728318U - Long auger cement paste dado formula implants the construction equipment of pile tube - Google Patents
Long auger cement paste dado formula implants the construction equipment of pile tube Download PDFInfo
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- CN204728318U CN204728318U CN201520482419.5U CN201520482419U CN204728318U CN 204728318 U CN204728318 U CN 204728318U CN 201520482419 U CN201520482419 U CN 201520482419U CN 204728318 U CN204728318 U CN 204728318U
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Abstract
The utility model discloses the construction equipment that a kind of long auger cement paste dado formula implants pile tube, it comprises pile frame, unit head, drilling rod, common pressure grouting pump, high-pressure injection pump, high-pressure slip-casting pipe, steel bushing (6), pulp absorbing pump (7) and liquid storage tank (8), unit head is arranged on pile frame, the outer circumference surface of drilling rod is provided with helical blade from top to bottom, common pressure grouting pipe top is connected with common pressure grouting pump, and the first through hole of the apex point of bottom through drilling rod bottom of common pressure grouting pipe stretches out apex point; High-pressure injection pump is connected with the upper end of high-pressure slip-casting pipe, and the second through hole of the apex point of high-pressure slip-casting pipe bottom through drilling rod bottom stretches out apex point; Steel bushing (6) is concentric with drilling rod, and the soil body is imbedded in the bottom of steel bushing (6) and top is above the ground level, pulp absorbing pump (7) is positioned at steel bushing (6), and the outlet of pulp absorbing pump (7) is connected with liquid storage tank (8).This device makes that bearing capacity of pile foundation is strong, pile quality good, to surrounding soil environment without destroying infection, free from environmental pollution.
Description
Technical field
The utility model relates to the piling Technology in field of civil engineering, is specifically the construction equipment that a kind of long auger cement paste dado formula implants pile tube.
Background technology
Along with the development of national economic development and the continuous research and development of piling Technology and application, the pile foundation of soft foundation is more and more extensive.The pile foundation type of prior art mainly contains holing with slurry wall protection castinplace pile, pile for prestressed pipe etc. taken root in by common long auger guncreting pile, prestressed concrete pipe pile (abbreviation pile tube), common quiet brill.
All there is respective problem in above-mentioned pile foundation type.Holing with slurry wall protection castinplace pile can form a large amount of slurry coat method, contaminated environment, be difficult to process, and the anti-pulling capacity of this pile foundation is undesirable, and its degree of depth is also easily subject to soil layer restriction, as when very hard layer of gravel and weathered rocks layer, drilling efficiency is low.And common long auger guncreting pile boring puts in place and insert reinforcing cage with joint bar device after normal pressure pumping of concrete; but during rear slotting reinforcing cage, reinforcing cage is elongated, reinforcing cage is made easily to insert off normal; cause the thickness of concrete cover deviation of reinforcing cage large, affect the total quality of pile foundation.And during prestressed concrete pipe pile pile sinking, very strong soil compaction effect can be produced, easily impact surrounding soil environment and destroy, the soil body squeezing action power that pile tube self is subject to is also large, and the easy squeezed inclination of the pile tube first sunk to even is ruptured.Common quiet brill is taken root in pile for prestressed pipe and is adopted injection cement paste and cement paste and hole soil shear failure are formed cement-soil retaining wall, the side friction then implanting pile tube relies on cement-soil to pass to the soil layer of stake holes periphery, the cement grout overflowed is wasted and is polluted on-the-spot, and after cement-soil sclerosis, intensity is undesirable, causes the intensity of whole pile body also undesirable.
Utility model content
A technical problem to be solved in the utility model is, provides a kind of and can make that bearing capacity of pile foundation is strong, pile quality good, implants without destroying infection, long auger cement paste dado formula free from environmental pollution surrounding soil environment the construction equipment of pile tube.
A technical solution of the present utility model is, a kind of long auger cement paste dado formula is provided to implant the construction equipment of pile tube, it comprises pile frame, unit head, drilling rod and common pressure grouting pump, unit head is arranged on pile frame, drilling rod is arranged on below unit head, drilling rod bottom is apex point, the outer circumference surface of drilling rod is provided with helical blade from top to bottom, common pressure grouting pipe is provided with in drilling rod, common pressure grouting pipe top is connected with common pressure grouting pump, and the first through hole of the apex point of bottom through drilling rod bottom of common pressure grouting pipe stretches out apex point; It also comprises high-pressure injection pump, high-pressure slip-casting pipe, steel bushing, pulp absorbing pump and the liquid storage tank be located in drilling rod, and high-pressure injection pump is connected with the upper end of high-pressure slip-casting pipe, and the second through hole of the apex point of high-pressure slip-casting pipe bottom through drilling rod bottom stretches out apex point; Steel bushing is concentric with drilling rod, and the soil body is imbedded in the bottom of steel bushing and top is above the ground level, and pulp absorbing pump is positioned at steel bushing, and midge delivery side of pump is connected with liquid storage tank.
The construction equipment utilizing the utility model long auger cement paste dado formula to implant pile tube carries out the method for constructing, and its step is as follows:
A, prepare conventional section cement paste that water/binder ratio is 1:1 and water/binder ratio is section cement paste at the bottom of the expansion of 0.6:1; And retarding agent is added in conventional section cement paste;
The apex point of b, drilling rod is holed downwards in pre-fixed pile, extracts drilling rod after getting into 2 ~ 3 meters, the soil body is sunk in steel bushing bottom and ensures that steel bushing top is above the ground level;
Bore the soil body under c, continuation, in boring procedure, bore the broken soil body along with the helical blade rotated is from the discharge of top, hole;
Get into when expanding section top, end design elevation under d, apex point bottom drilling rod, start high-pressure injection pump, section cement paste at the bottom of the expansion of high concentration is outwards sprayed through high-pressure slip-casting pipe;
E, spray and expand end section cement paste while drilling rod under continuing, in the process of high-pressure rotary-spray, section cement paste at the bottom of the expansion of high concentration can constantly cut, the broken soil body expanding the hole sidewall of end section makes the aperture of section at the bottom of this expansion constantly become large, until the apex point of drilling rod bottom arrives expand design elevation at the bottom of end section;
F, closedown high-pressure injection pump stop whitewashing, continue rotary drill rod and pull out drilling rod simultaneously, until the apex point of drilling rod bottom arrives expansion section top, end design elevation;
G, restart high-pressure injection pump, and again descend brill drilling rod until apex point arrives at the bottom of hole, then drilling rod is pulled out on until apex point arrives expand section top, end design elevation, lower brill again in the process of pulling out, high-pressure injection pump starts always, secondary churning is carried out to expansion end section, section at the bottom of expansion is tamped by section cement paste at the bottom of the expansion of high concentration;
H, close high-pressure injection pump, start common pressure grouting pump, rotate and on pull out drilling rod, inject conventional section cement paste with retaining wall, until the apex point of drilling rod exits from steel bushing top to conventional section;
I, withdraw drilling rod, above pile tube handling to position, hole, then pile tube is sunk to stake holes, and knock pipe pile top with pile driver, make pile tube bottom arrive pan soil or the weathered rocks of design; In pile driving process, pulp absorbing pump is put into steel bushing, the conventional section cement paste that pile sinking overflows by pulp absorbing pump is delivered to liquid storage tank and stores, in order to recycling.
The utility model long auger cement paste dado formula implants the construction equipment of pile tube compared with prior art, has the following advantages and effect:
First, the utility model can not produce the reluctant slurry coat method of contaminated environment, and the conventional section cement paste overflowed during pile sinking is recycled to liquid storage tank, avoid unordered discharge, and be also permeated with retarding agent in conventional section cement paste, again can recycle when constructing next pile foundation, provide cost savings, economic benefits are good, secondly, due to the effect of retarding agent, the conventional section cement paste of retaining wall does not solidify, when sinking to pile tube, resistance is little, pile sinking piling process is convenient, is convenient to pile tube and sinks to the pan soil or weathered rocks that arrive design, also can not produce soil compaction effect, and pile tube all better controls than elongated reinforcing cage verticality and alignment degree, makes thickness of concrete cover even, again, the existence of steel bushing, increases the space of the temporary transient storage of the retaining wall cement paste of spilling, adds that pulp absorbing pump constantly exports cement paste, avoids the situation of slurry wall spill-over to building site, moreover, the most important, also be that the maximum bright spot of the utility model is as follows: after expanding the section end, high-pressure rotary-spray reaming first time, a part of hack can be produced, therefore first time arrives after at the bottom of hole, pull out on drilling rod is not direct, but one side is pulled out while continue to rotate, in the process that helical blade is pulled out on first time, the cement paste being mixed with hack is rotated up discharge, in fact just serve the effect in hole clearly, behind clear hole, again at the bottom of the churning to hole of lower brill, then churning is pulled out on to the top expanding end section, section cement paste at the bottom of the expansion of high concentration is filled to expanding end section, like this, with regard to high degree reduce remain in expand the end section hack amount, in like manner, continuation is pulled out and fills to conventional section in the process of conventional section cement paste, drilling rod still keeps rotating, like this, just farthest discharge the soil body remaining in conventional section, the benefit that above-mentioned way is maximum, make the residual soil body in whole pile foundation few, low intensive cement grout can not be formed with cement paste mix and blend, that is, this technical scheme achieves neat slurry instead of cement-soil retaining wall, therefore after last pile, the cement paste of high strength and the side skin friction of the soil body are obviously larger, the bearing capacity of whole pile foundation been significantly enhanced.
Accompanying drawing explanation
Structural representation when Fig. 1 is the construction equipment boring of the utility model long auger cement paste dado formula implantation pile tube.
Structural representation when Fig. 2 is the construction equipment pile sinking of the utility model long auger cement paste dado formula implantation pile tube.
Fig. 3 is the cross section schematic diagram that the utility model long auger cement paste dado formula implants the drilling rod of the construction equipment of pile tube.
Shown in figure 1, unit head, 2, drilling rod, 3, helical blade, 4, common pressure grouting pipe, 5, high-pressure slip-casting pipe, 6, steel bushing, 7, pulp absorbing pump, 8, liquid storage tank, 9, pile tube, 10, Pile feeder, 11, pile monkey, 12, apex point.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As shown in Figure 1, Figure 2, Figure 3 shows, the utility model long auger cement paste dado formula implants the construction equipment of pile tube, and it comprises pile frame, unit head 1, drilling rod 2, common pressure grouting pump, high-pressure injection pump, the high-pressure slip-casting pipe 5 be located in drilling rod 2, steel bushing 6, pulp absorbing pump 7 and liquid storage tank 8.
Unit head 1 is arranged on pile frame, and drilling rod 2 is arranged on below unit head 1, and drilling rod 2 bottom is apex point 12, and the outer circumference surface of drilling rod 2 is provided with helical blade 3 from top to bottom.Be provided with common pressure grouting pipe 4 in drilling rod 2, common pressure grouting pipe 4 top is connected with common pressure grouting pump through hose, and apex point 12 is stretched out through the first through hole of the apex point 12 of drilling rod 2 bottom in the bottom of common pressure grouting pipe 4.High-pressure injection pump is connected through the upper end of hose with high-pressure slip-casting pipe 5, and apex point 12 is stretched out through the second through hole of the apex point 12 of drilling rod 2 bottom in high-pressure slip-casting pipe 5 bottom.Steel bushing 6 is concentric with drilling rod 2, and the soil body is imbedded in the bottom of steel bushing 6 and top is above the ground level.Pulp absorbing pump 7 puts into the cement paste of steel bushing 6, and the outlet of pulp absorbing pump 7 is connected with liquid storage tank 8 through hose.
As shown in Figure 1, Figure 2, Figure 3 shows, the construction equipment utilizing the utility model long auger cement paste dado formula to implant pile tube carries out the method for constructing, and its step is as follows.
A, prepare that water/binder ratio is 1:1, concentration of slurry be 1.2 conventional section cement paste and water/binder ratio be 0.6:1, concentration of slurry is not less than section cement paste at the bottom of the expansion of 1.35; And retarding agent is added in conventional section cement paste.
The apex point 12 of b, drilling rod 2 is holed downwards in pre-fixed pile, extracts drilling rod 2 after getting into 2 ~ 3 meters, the soil body is sunk in steel bushing 6 bottom and ensures that steel bushing 6 top is above the ground level about 1 meter.
Bore the soil body under c, continuation, in boring procedure, bore the broken soil body along with the helical blade 3 rotated is from the discharge of top, hole.
When d, apex point bottom drilling rod 2 get into for 12 times and expand section top, end design elevation, start high-pressure injection pump, section cement paste at the bottom of the expansion of high concentration is outwards sprayed through high-pressure slip-casting pipe 5.Expand section top, end design elevation just to refer to, the height at the top of section at the bottom of the expansion of design.
E, spray and expand end section cement paste and continue on one side time brill drilling rod 2, in the process of high-pressure rotary-spray, section cement paste at the bottom of the expansion of high concentration can constantly cut, the broken soil body expanding the hole sidewall of end section makes the aperture of section at the bottom of this expansion constantly become large, until the apex point 12 of drilling rod 2 bottom arrives expand design elevation at the bottom of end section; Expand design elevation and the height at the bottom of hole, the namely height at the end of whole pile foundation at the bottom of end section.
F, closedown high-pressure injection pump stop whitewashing, continue rotary drill rod 2 and pull out drilling rod 2 simultaneously, until the apex point 12 of drilling rod 2 bottom arrives expansion section top, end design elevation.
G, restart high-pressure injection pump, and again descend brill drilling rod 2 until apex point 12 arrives at the bottom of hole, then drilling rod 2 is pulled out on until apex point 12 arrives expand section top, end design elevation, under to get at the bottom of hole to pull out again and expand in the high process of end section top mark, high-pressure injection pump starts always, secondary churning is carried out to expansion end section, section at the bottom of expansion is tamped by section cement paste at the bottom of the expansion of high concentration.
H, close high-pressure injection pump, start common pressure grouting pump, rotate and on pull out drilling rod 2, inject conventional section cement paste with retaining wall through common pressure grouting pipe 4 to conventional section, until the apex point 12 of drilling rod 2 exits from steel bushing 6 top.
I, withdraw drilling rod 2, by pile tube 9 with above loop wheel machine handling to position, hole, this pile tube 9 is generally be welded at special jig head and the tail by the pile tube 9 of many segmentations.Again pile tube 9 is sunk to stake holes, then knocked the top of pile tube 9 by canular Pile feeder 10 with the pile monkey 11 of pile driver, make pile tube 9 bottom arrive pan soil or the weathered rocks of design.
In pile driving process, pulp absorbing pump 7 is put into the cement paste of steel bushing 6, the conventional section cement paste that pile sinking overflows by pulp absorbing pump 7 is delivered to liquid storage tank 8 through hose and stores, in order to recycling.
Claims (1)
1. the construction equipment of a long auger cement paste dado formula implantation pile tube, it comprises pile frame, unit head (1), drilling rod (2) and common pressure grouting pump, unit head (1) is arranged on pile frame, drilling rod (2) is arranged on unit head (1) below, drilling rod (2) bottom is apex point (12), the outer circumference surface of drilling rod (2) is provided with helical blade (3) from top to bottom, common pressure grouting pipe (4) is provided with in drilling rod (2), common pressure grouting pipe (4) top is connected with common pressure grouting pump, apex point (12) is stretched out through the first through hole of the apex point (12) of drilling rod (2) bottom in the bottom of common pressure grouting pipe (4), it is characterized in that: it also comprises high-pressure injection pump, the high-pressure slip-casting pipe (5), steel bushing (6), pulp absorbing pump (7) and the liquid storage tank (8) that are located at drilling rod in (2), high-pressure injection pump is connected with the upper end of high-pressure slip-casting pipe (5), and apex point (12) is stretched out through the second through hole of the apex point (12) of drilling rod (2) bottom in high-pressure slip-casting pipe (5) bottom, steel bushing (6) is concentric with drilling rod (2), and the soil body is imbedded in the bottom of steel bushing (6) and top is above the ground level, pulp absorbing pump (7) is positioned at steel bushing (6), and the outlet of pulp absorbing pump (7) is connected with liquid storage tank (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520482419.5U CN204728318U (en) | 2015-07-02 | 2015-07-02 | Long auger cement paste dado formula implants the construction equipment of pile tube |
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| CN201520482419.5U CN204728318U (en) | 2015-07-02 | 2015-07-02 | Long auger cement paste dado formula implants the construction equipment of pile tube |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104947652A (en) * | 2015-07-02 | 2015-09-30 | 浙江新曙光建设有限公司 | Long auger drilling cement mortar retaining wall type implanted pile tube construction device and construction method |
| CN106948768A (en) * | 2017-04-05 | 2017-07-14 | 张腊琴 | A kind of auger stem and steel pipe pile construction method |
| CN113530440A (en) * | 2021-07-12 | 2021-10-22 | 宁波亿润建设有限公司 | Construction device for long spiral drilling cement paste retaining wall type implanted pipe pile |
-
2015
- 2015-07-02 CN CN201520482419.5U patent/CN204728318U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104947652A (en) * | 2015-07-02 | 2015-09-30 | 浙江新曙光建设有限公司 | Long auger drilling cement mortar retaining wall type implanted pile tube construction device and construction method |
| CN106948768A (en) * | 2017-04-05 | 2017-07-14 | 张腊琴 | A kind of auger stem and steel pipe pile construction method |
| CN113530440A (en) * | 2021-07-12 | 2021-10-22 | 宁波亿润建设有限公司 | Construction device for long spiral drilling cement paste retaining wall type implanted pipe pile |
| CN113530440B (en) * | 2021-07-12 | 2024-02-06 | 宁波亿润建设有限公司 | Construction device for long spiral drilling cement paste wall-protecting type implanted pipe pile |
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