CN102433901A - Repair and treatment method of prestressed pipe pile with bending and breaking defects - Google Patents
Repair and treatment method of prestressed pipe pile with bending and breaking defects Download PDFInfo
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- CN102433901A CN102433901A CN2011103059395A CN201110305939A CN102433901A CN 102433901 A CN102433901 A CN 102433901A CN 2011103059395 A CN2011103059395 A CN 2011103059395A CN 201110305939 A CN201110305939 A CN 201110305939A CN 102433901 A CN102433901 A CN 102433901A
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000005452 bending Methods 0.000 title claims abstract description 10
- 230000008439 repair process Effects 0.000 title claims abstract description 9
- 230000007547 defect Effects 0.000 title abstract 7
- 238000005553 drilling Methods 0.000 claims abstract description 49
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 42
- 239000002689 soil Substances 0.000 claims abstract description 21
- 238000010276 construction Methods 0.000 claims abstract description 16
- 239000004567 concrete Substances 0.000 claims abstract description 12
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 7
- 201000010099 disease Diseases 0.000 claims description 81
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 claims description 81
- 239000011148 porous material Substances 0.000 claims description 36
- 239000002893 slag Substances 0.000 claims description 12
- 241001074085 Scophthalmus aquosus Species 0.000 claims description 6
- 239000000956 alloy Substances 0.000 claims description 5
- 229910045601 alloy Inorganic materials 0.000 claims description 5
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 3
- 239000004568 cement Substances 0.000 claims description 3
- 230000001186 cumulative effect Effects 0.000 claims description 2
- 230000008595 infiltration Effects 0.000 claims description 2
- 238000001764 infiltration Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 4
- 238000011065 in-situ storage Methods 0.000 abstract description 2
- 230000002787 reinforcement Effects 0.000 abstract description 2
- 239000011440 grout Substances 0.000 abstract 2
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
- 238000006073 displacement reaction Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000246 remedial effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Abstract
The invention provides a repair and treatment method of a prestressed pipe pile with bending and breaking defects. A device comprises a drilling tool, wherein a high pressure water inlet is arranged at the upper end of the drilling tool and water outlets are arranged on the middle and lower parts of the drilling tool. The method comprises the following steps of: firstly righting a pile with bending and breaking defects, inserting the drilling tool into the pipe hole of the righted pile with defects and ensuring the drilling tool to drill through a gravel or ballast layer in the pile hole, simultaneously adopting high pressure water to wash the soft soil in the pipe hole to form grout and drive the gravels or ballasts to sink to the position 2 meters below cracks of the pile with defects, then pulling out the drilling tool, removing the water in the pile pipe hole, putting reinforcement cages and filling concrete into the pile pipe hole and adopting a pervibrator to carry out continuous vibration until the grout in the concrete seeps into the cracks of the pipe pile and the peripheral walls of the cracks to fill the cracks so that a cast-in-situ solid reinforced concrete pile is formed in the pipe hole of the pile with defects, thus realizing repair of the original pile with defects and achieving the original function of transferring horizontal load. The method has the advantages of good repair effect and high construction efficiency.
Description
Technical field
The present invention relates to a kind of pile foundation of civil construction project, especially relate to a kind of curved disease stake repairing and treating that splits of pile for prestressed pipe.
The pile for prestressed pipe that in deep saturated soft clay stratum, is used for pile foundation engineering; Usually because construction wrong or sink to pile for prestressed pipe in the soil because of the weak soil displacement; Make this pile tube cause bending and rupture; Consequent pile for prestressed pipe becomes the curved disease stake of splitting, and this curved essential repairing and treating of disease stake that splits is to recover the original bearing capacity value of this pile for prestressed pipe.
Background technology
At present, construction of buildings on the bury stratum must adopt pile foundation to bear the weight of building; And pile for prestressed pipe is a kind of common stake type in the said pile foundation, and this pile for prestressed pipe generally all adopts batch production production, and it has the advantage that reliable in quality, bearing capacity value are high, pile foundation cost cost is low, piling construction efficient is high; Yet; Along with pile for prestressed pipe extensive use in the pile foundation of soft foundation upper support building weight, usually can occur rupturing because of pile for prestressed pipe in the weak soil displacement generation soil is crooked in this soft soil layer, so the disease stake of in all kinds of engineerings, rupturing through regular meeting's appearance bending in blocks; Original bearing capacity has been lost in this disease stake; And have a strong impact on the safety of said supporting building, thus must it be repaired, to recover its original bearing capacity value.
On the other hand; The ability that said pile for prestressed pipe shortcoming is anti-side direction horizontal force is relatively poor; Therefore in the excavating foundation trench construction, stack reasons such as the earthwork and bracing of foundation pit inefficacy because of the earthwork discrepancy in elevation or on the foundation trench limit, the place weak soil will produce bigger displacement; And it is crooked and rupture to cause prestressed pipe displacement in this weak soil to produce said pile for prestressed pipe thus, this bending and the pile for prestressed pipe that ruptures becomes the disease stake of the original supporting capacity of forfeiture; This disease stake can bring great harm to said building.
To the disease stake of the original supporting capacity of above-mentioned forfeiture, existing is to adopt the strange land to repair or upgrade the method for pile for prestressed pipe, and repairing efficiency is longer like this, and efficiency of construction is lower again.
Summary of the invention
Technical problem to be solved by this invention is exactly the curved disease stake repairing and treating method of splitting that the pile for prestressed pipe that a kind of repairing effect is good, efficiency of construction is high is provided to the present situation of above-mentioned prior art.
The present invention solves the problems of the technologies described above the technical scheme that is adopted to be: a kind of curved disease stake restoration and treatment device that splits of pile for prestressed pipe is characterized in that:
A. should curved split configuration one drilling tool in the pore of disease stake, this drilling tool is made up of drill bit and drilling rod, and is threaded and is integral;
B. said drill bit be coniform, these circular cone periphery embedding iron chains have a plurality of alloy bars, said drill bit is provided with the axial centre weep hole;
C. said drilling rod is set to hollow-core construction, and its upper end is provided with the water inlet that connects high-pressure water pipe; This drilling rod middle part is provided with a plurality of upward weep holes; This drilling rod bottom is provided with axial weep hole, and this axial weep hole is corresponding with the axial centre weep hole of said drill bit.
The pressure of the water inlet of said high-pressure water pipe is 5Mpa～10Mpa.
Adopt above drilling tool structure, can be implemented in and advance the brill process in the pore and dash with water under high pressure simultaneously, alloy bit promptly can drill said curved rubble or the road slag blanket that splits in the disease stake pore fast.
Said upward weep hole is set to four, its diameter be 10 millimeters of Φ, upward tiltedly be 45 the degree.
The axial centre weep hole diameter of the axial weep hole of said drilling rod, said drill bit is 8 millimeters of Φ.
Adopt drilling rod lower end and drill bit respectively to be provided with corresponding center water outlet hole each other, a position, its effect is to be convenient to downwards towards silt matter soil.
A kind of curved disease stake repairing and treating method of splitting of pile for prestressed pipe; Comprise the drilling tool of forming by drill bit and drilling rod; This drill bit is provided with the axial centre weep hole; Water inlet, the middle part that said drilling rod upper end is provided with the connection high-pressure water pipe is provided with a plurality of upward weep holes, the bottom is provided with and the corresponding axial weep hole of drill bit weep hole, and it is characterized in that: the curved disease stake repairing and treating step of splitting of said pile for prestressed pipe is:
The first step at the said curved bending dorsal part place boring extracting soil that splits the disease stake, should be bent and split the disease stake and set upright;
Second step, said drilling tool inserted saidly set upright in the pore that palintrope splits the disease stake suitable for readingly, and drill rubble or the road slag blanket in this disease stake pore; The brill process of going forward side by side is connected water under high pressure at said high-pressure water pipe water inlet simultaneously and is washed away; At this moment, by the water outlet of the upward weep hole upward pressure of said drilling rod, and dash native to the weep hole downward pressure by said drill bit shaft; Along with this drilling tool moves up and down; Water under high pressure is washed into mud with the said curved weak soil that splits in the disease stake pore; And overflow is to ground; Should curved split interior rubble of disease stake pore or ballast aggregate also along with sinking, sentence following about 2 meters position up to the breach that is sink to said disease stake, again that the water pump drainage in this disease stake pore is clean; Guarantee that rubble or road slag blanket in this disease stake pore sinks down into the pile tube breach and sentence following about 2 meters, this has just accomplished the task that rubble or road slag blanket in the said disease stake pore sink;
In the 3rd step, said drilling tool is extracted suitable for reading to this disease stake from said curved splitting in the disease stake pore;
In the 4th step, drain the water away in the said disease stake pore, and insert reinforcing cage, fill concrete; Be inserted to about 0.5 meter the position at pile tube breach place with poker vibrator; Continuous shaking time >=10 minute, the cumulative time of interrupted vibration be >=15 minutes, the cement paste in said concrete infiltrates said pile tube breach place until its periphery wall of infiltration; The breach place of this disease stake is tamped, can reach the function of transmitting vertical load; Like this, with the reinforced concrete pile that becomes cast-in-place entity in the said disease stake pore, this reinforced concrete pile stretches into this disease stake breach and sentences following about 2 meters, can repair former disease stake, and can realize the function of original transmission horizontal loading.
The present invention is owing to adopted the method that the curved construction on the spot of splitting the disease stake is repaired, and compared with prior art, its advantage is that repairing effect is good, can guarantee workmanship; Efficiency of construction improves greatly again.
Description of drawings
Fig. 1 drilling tool sketch map of the present invention;
Fig. 2 is the B-B sectional drawing of Fig. 1;
Fig. 3 is the A-A sectional drawing of Fig. 1;
Fig. 4 is a repairing and treating step sketch map of the present invention;
The specific embodiment
Below in conjunction with accompanying drawing embodiment to describing in further detail.
The curved repairing and treating that splits the disease stake of pile for prestressed pipe of the present invention is in the excavating foundation trench construction, to stack the earthwork and pattern foundation pit supporting structure because of the soil excavation discrepancy in elevation or on the foundation trench limit to lose efficacy; Weak soil can produce bigger displacement drive and sink to the pile for prestressed pipe in the soil; Thereby produce crooked and rupture, this pile for prestressed pipe becomes the disease stake of forfeiture supporting capacity; Pile for prestressed pipe in the engineering has only behind excavating foundation trench can appear this pile for prestressed pipe, and just can learn top off normal amount through detecting the stake position, can know that this pile for prestressed pipe is whether crooked and ruptures; Have only that foundation trench appears fully in the place, can know the bending and the breaking degree of this disease stake; At this moment, adopt other construction machinery of building with remedial measure to be difficult to get in the said place, have only the original place to repair said disease stake, and recover its supporting capacity and be only very wise move.
All fill up the ballast aggregate of rubble or backfill in the hollow pore of said pile for prestressed pipe; The present invention is exactly the breach portion below 2 meters that will the rubble in this prestressed pipe tubular pile hollow hole or ballast aggregate be sink to said pile tube, construction reinforced bar concrete reinforcement stake in the hollow circular hole of this pile for prestressed pipe then.
Fig. 1 to Fig. 4 illustrates an embodiment of the invention, comprises the drilling tool 1 be made up of drill bit 11 and drilling rod 12, and this drill bit 11 is integral by being threaded with drilling rod 12; The a plurality of alloy bars 13 of embedding iron chains around this drill bit 11 are referring to Fig. 1; Drilling rod is set to hollow-core construction, and this drilling rod upper end is provided with the water inlet 16 that connects high-pressure water pipe, and the pressure of high-pressure water pipe is 5Mpa～10Mpa; Advance brill process while water under high pressure and dash, alloy bit 11 can drill said curved rubble or the road slag blanket that splits in disease stake 2 circular holes fast;
Fig. 2 illustrates drilling rod 12 middle parts and is provided with the upward weep hole 15 that a plurality of diameters are 10 millimeters of Φ, and this oblique weep hole upwards is 45 degree, so that towards silt matter soil;
Fig. 3 illustrate drilling rod 12 lower ends and drill bit 11 respectively be provided with a position each other corresponding diameter be the center water outlet hole 14 and 17 of 8 millimeters of Φ so that native towards silt matter downwards;
As shown in Figure 4, it is following that pile for prestressed pipe of the present invention curved splits disease stake repairing and treating method step:
The first step at curved bending dorsal part 9 boring extracting soils that split disease stake 2, should be bent and split disease stake 2 and set upright;
In second step, curved after drilling tool 1 inserted this and set upright splits the suitable for reading of disease stake 2, and drills rubble or road slag blanket in this disease stake pore; Advancing the brill process connects water under high pressure simultaneously and washes away; At this moment, by the 15 upward pressure water outlets of drilling rod weep hole, dash soil by bit central weep hole 14 downward pressures; Along with drilling tool 1 moves up and down; Water under high pressure is washed into the mud overflow to ground with the weak soil 4 in the disease stake pore; Rubble in the disease stake pore or ballast aggregate are also along with sinking, and be until being sink to the position about 2 meters below the pile tube breach, again that the water pump drainage in this disease stake pore is clean; And rubble or road slag blanket 3 in the disease stake pipe pore sink down into pile tube breach place 21 following 2 meters, accomplish the task that rubble or road slag blanket 3 in the disease stake pore sink;
In the 3rd step, extract the suitable for reading of drilling tool 1 to disease stake 2;
In the 4th step, get rid of ponding in the disease stake 2, and insert reinforcing cage 7; Fill concrete 6, be inserted to 0.5 meter position up and down of pile tube breach 21, continuous shaking time >=10 minute with poker vibrator; Interrupted vibration accumulative total time of vibration >=15 minute; Cement paste in concrete 6 infiltrates the periphery wall 5 of pile tube breach 21 to stake, and the fracture port of this disease stake is tamped, and can reach the function of transmitting vertical load; With 6 of reinforcing bar 7 concrete that become cast-in-place entity in the former disease stake pore, this reinforced concrete pile stretches into following 2 meters of disease stake breach, can repair the function that former disease stake also can realize original transmission horizontal loading.
Claims (5)
1. the curved disease stake restoration and treatment device that splits of a pile for prestressed pipe is characterized in that:
A. should curved split configuration one drilling tool (1) in the pore of disease stake (2), this drilling tool (1) is made up of drill bit (11) and drilling rod (12), and is threaded and is integral;
B. said drill bit (11) be coniform, these circular cone periphery embedding iron chains have a plurality of alloy bars (13), said drill bit (11) is provided with axial centre weep hole (17);
C. said drilling rod (12) is set to hollow-core construction, and its upper end is provided with the water inlet (16) that connects high-pressure water pipe; This drilling rod middle part is provided with a plurality of upward weep holes (15); This drilling rod bottom is provided with axial weep hole (14), and this axial weep hole (14) is corresponding with the axial centre weep hole (17) of said drill bit.
2. according to the curved disease stake restoration and treatment device that splits of the said pile for prestressed pipe of claim 1, it is characterized in that: the pressure of the water inlet of said high-pressure water pipe (16) is 5Mpa～10Mpa.
3. according to the curved disease stake restoration and treatment device that splits of the said pile for prestressed pipe of claim 1, it is characterized in that: said upward weep hole (15) is set to four, its diameter be 10 millimeters of Φ, upward tiltedly be 45 the degree.
4. according to the curved disease stake restoration and treatment device that splits of the said pile for prestressed pipe of claim 1, it is characterized in that: axial centre weep hole (17) diameter of the axial weep hole of said drilling rod (14), said drill bit is 8 millimeters of Φ.
5. the curved disease stake repairing and treating method of splitting of a pile for prestressed pipe; Comprise the drilling tool of forming by drill bit (11) and drilling rod (12) (1); This drill bit is provided with axial centre weep hole (17); Water inlet (16), the middle part that said drilling rod (12) upper end is provided with the connection high-pressure water pipe is provided with a plurality of upward weep holes (15), the bottom is provided with and the corresponding axial weep hole of said drill bit weep hole (17) (14), and it is characterized in that: the curved disease stake repairing and treating step of splitting of said pile for prestressed pipe is:
The first step is located boring extracting soil at the said curved bending dorsal part (9) that splits disease stake (2), should bend to split the disease stake and set upright;
Second step, said drilling tool (1) inserted saidly set upright in the pore that palintrope splits the disease stake suitable for readingly, and drill rubble or the road slag blanket (3) in this disease stake pore; The brill process of going forward side by side is connected water under high pressure at said high-pressure water pipe water inlet (16) simultaneously and is washed away; At this moment, by the upward weep hole of said drilling rod (15) upward pressure water outlet, and dash native to weep hole (14) downward pressure by said drill bit shaft; Along with this drilling tool moves up and down; Water under high pressure is washed into mud with the said curved weak soil (4) that splits in disease stake (2) pore; And overflow is to ground; Should curved split interior rubble of disease stake pore or ballast aggregate (3) also along with sinking, up to following about the 2 meters position, breach place (21) that is sink to said disease stake, again that the water pump drainage in this disease stake pore is clean; Guarantee that rubble or road slag blanket (3) in this disease stake pore sink down into following about 2 meters of pile tube breach place (21), this has just accomplished the task of interior rubble of said disease stake pore or road slag blanket (3) sinking;
In the 3rd step, said drilling tool (1) is extracted suitable for reading to this disease stake from said curved splitting in disease stake (2) pore;
In the 4th step, drain the water away in said disease stake (2) pore, and insert reinforcing cage (7), fill concrete (6); Be inserted to about 0.5 meter the position at pile tube breach place (21) with poker vibrator; Continuous shaking time >=10 minute, the cumulative time of interrupted vibration be >=15 minutes, the cement paste in said concrete (6) infiltrates said pile tube breach place (21) until its periphery wall (5) of infiltration; The breach place (21) of this disease stake is tamped, can reach the function of transmitting vertical load; Like this, with the reinforced concrete pile that becomes cast-in-place entity in said disease stake (2) pore, this reinforced concrete pile stretches into following about 2 meters of this disease stake breach place (21), promptly repairs former disease stake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110305939.5A CN102433901B (en) | 2011-09-28 | 2011-09-28 | Repair and treatment method of prestressed pipe pile with bending and breaking defects |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110305939.5A CN102433901B (en) | 2011-09-28 | 2011-09-28 | Repair and treatment method of prestressed pipe pile with bending and breaking defects |
Publications (2)
| Publication Number | Publication Date |
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| CN102433901A true CN102433901A (en) | 2012-05-02 |
| CN102433901B CN102433901B (en) | 2015-03-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110305939.5A Active CN102433901B (en) | 2011-09-28 | 2011-09-28 | Repair and treatment method of prestressed pipe pile with bending and breaking defects |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109537585A (en) * | 2018-11-27 | 2019-03-29 | 杭州东升建设工程有限公司 | The antidote of tubular pole verticality in a kind of work progress |
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-
2011
- 2011-09-28 CN CN201110305939.5A patent/CN102433901B/en active Active
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| JPH08302676A (en) * | 1995-05-12 | 1996-11-19 | Osaka Bosui Constr Co Ltd | Repairing method for foundation pile |
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Non-Patent Citations (2)
| Title |
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| 李强: "预应力(高强)混凝土管桩事故分析与处理", 《上海建设科技》 * |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109537585A (en) * | 2018-11-27 | 2019-03-29 | 杭州东升建设工程有限公司 | The antidote of tubular pole verticality in a kind of work progress |
| CN109537585B (en) * | 2018-11-27 | 2020-09-25 | 杭州东升建设工程有限公司 | Method for correcting perpendicularity of tubular pile in construction process |
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| CN102433901B (en) | 2015-03-11 |
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