CN104213554A - Construction method of slip-casting variable-cross section steel pipe pile and expansion and extrusion device of slip-casting variable-cross section steel pipe pile - Google Patents

Construction method of slip-casting variable-cross section steel pipe pile and expansion and extrusion device of slip-casting variable-cross section steel pipe pile Download PDF

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Publication number
CN104213554A
CN104213554A CN201410404414.0A CN201410404414A CN104213554A CN 104213554 A CN104213554 A CN 104213554A CN 201410404414 A CN201410404414 A CN 201410404414A CN 104213554 A CN104213554 A CN 104213554A
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China
Prior art keywords
section steel
variable section
pile tube
steel pile
expansion
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CN201410404414.0A
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Chinese (zh)
Inventor
胡玉银
陈建兰
栗新
阳吉宝
谷远朋
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Shanghai Construction Group Design Institute Co Ltd
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Shanghai Construction Group Design Institute Co Ltd
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Priority to CN201410404414.0A priority Critical patent/CN104213554A/en
Publication of CN104213554A publication Critical patent/CN104213554A/en
Pending legal-status Critical Current

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Abstract

The invention provides a construction method of a slip-casting variable-cross section steel pipe pile and an expansion and extrusion device of the slip-casting variable-cross section steel pipe pile. According to the construction method of the slip-casting variable-cross section steel pipe pile and the expansion and the extrusion device of the slip-casting variable-cross section steel pipe pile, provided by the invention, hole forming is firstly carried out by utilizing a drilling machine, slurry in a drill hole can be replaced by utilizing cement slurry after the hole forming is completed, a steel pipe pile which is provided with the expansion and extrusion device is then put in the drill hole, high-pressure cement slurry is pressed into the steel pipe pile or the expansion and extrusion device after the cement slurry in the drill hole is solidified, the expansion and extrusion device is used for expanding to extrude and strengthen a surrounding soil body under the action of the high-pressure cement slurry, a cement slurry body expansion and extrusion head is finally formed around the steel pipe pile, thus the occlusion action between the steel pipe pile and the surrounding soil body is greatly increased, a slurry leakage phenomenon which is easily caused in a post-grouting technology is avoided, and the operation reliability of the expansion and extrusion device is increased.

Description

Device is squeezed in injection forming Variable Section Steel pipe pile construction method and expansion thereof
Technical field
The present invention relates to the realm of building construction, relate in particular to a kind of injection forming Variable Section Steel pipe pile construction method and expand crowded device.
Background technology
Uplift pile is a kind of pile foundation of bearing tensile load.Make full use of from mechanical properties of materials, steel pipe pile should be the most efficient uplift pile.But, restricted by traditional construction technology, steel pipe pile can not find full expression as the advantage of uplift pile.On the one hand, steel pipe pile adopts and squeezes into or be pressed into construction technology, and ambient influnence is very large; On the other hand, the interlocking of steel pipe pile and the soil body is more weak, especially true in soft clay area, east such as Shanghai.So the Post Grouting Technique of steel pipe pile arises at the historic moment.
Existing Post Grouting Technique is a kind of by bury high-pressure slip-casting flexible pipe underground in stake side different depth place, after bored pile concreting, by pre-buried pipe, cement mortar is injected to stake side soil layer to improve a kind of technology of pile side friction.According to the result of some tests, think and can reach reasonable effect after rear mud jacking is processed, can improve 30%~70% to the bearing capacity of single pile in fine grained soils; To the stake in coarse-grained soil, amplification can reach 60%~120%.The shear strength that side frictional resistance effect after slip casting shows as side friction raising and stake side soil improves; Thereby frictional resistance is given full play to, and this bearing capacity that just means stake increases.But also Shortcomings part of stake rear flank slurry injection technique, i.e., easily there is running pulp phenomenon in the flow path of uncontrollable slurries, and reliability is poor.
Summary of the invention
The invention provides a kind of injection forming Variable Section Steel pipe pile construction method and expand crowded device, with improving on the basis of steel pipe pile uplift resistance, increase the reliability of Post Grouting Technique.
For achieving the above object, the invention provides a kind of expansion and squeeze device, it comprises the grouting device that at least one expansion that is arranged at Variable Section Steel pile tube stake side is squeezed unit and is arranged at described Variable Section Steel pile tube stake top place, unit is squeezed in described expansion and the colligation of described Variable Section Steel pile tube is fixed, and described grouting device squeezes unit with described Variable Section Steel pile tube or described expansion and is connected.
Further, the stake end of described Variable Section Steel pile tube, is provided with pile top, and described pile top is towards the side away from described Variable Section Steel pile tube.
In the first scheme provided by the invention, the quantity that unit is squeezed in described expansion is one, it is geotechnological cloth bag that unit is squeezed in described expansion, described geotechnological cloth bag is placed on all sides that described Variable Section Steel pile tube divides near its bottom, the two ends up and down of described geotechnological cloth bag are all fixed by wire rope and the colligation of described Variable Section Steel pile tube, the bag body of described geotechnological cloth bag passes through elastic cord banding in all sides of described Variable Section Steel pile tube, all sides corresponding with described geotechnological cloth bag position on described Variable Section Steel pile tube have some holes, described grouting device is connected with the stake top of described Variable Section Steel pile tube.
Further, the quantity of described elastic cord is many, and described many elastic cords are along the uniformly-spaced spread configuration of axis direction of described Variable Section Steel pile tube.
Further, described hole is uniformly distributed in all sides corresponding with described geotechnological cloth bag position on described Variable Section Steel pile tube.
In first scheme provided by the invention, the quantity that unit is squeezed in described expansion is multiple, described expansion is squeezed unit and is geotechnological cloth bag, described multiple geotechnological cloth bag is placed on described Variable Section Steel pile tube near the higher soil layer week side of bearing capacity, the two ends up and down of described geotechnological cloth bag are all fixed by wire rope and the colligation of described Variable Section Steel pile tube, the bag status of described multiple geotechnological cloth bags Tong Guo elastic cord banding in all sides of described Variable Section Steel pile tube, all sides corresponding with described geotechnological cloth bag position on described Variable Section Steel pile tube have some holes, described grouting device is connected with the stake top of described Variable Section Steel pile tube.
Further, the quantity of the described elastic cord of the each geotechnological cloth bag of banding is many, and described many elastic cords are along the uniformly-spaced spread configuration of axis direction of described Variable Section Steel pile tube.
Further, described hole is uniformly distributed in all sides corresponding with described geotechnological cloth bag position on described Variable Section Steel pile tube.
In above-mentioned first and second kind of scheme, the stake bottom of described Variable Section Steel pile tube is provided with a bottom sealing plate.
Further, the stake top place of described Variable Section Steel pile tube is provided with a top sealing plate, and described stake top sealing plate is provided with a grouting valve and an overflow valve, and described grouting device is connected with described grouting valve.
Further, described grouting valve and overflow valve are one way valve, and described grouting valve makes described in slurries single flow direction in Variable Section Steel pile tube, and described overflow valve makes air and the described Variable Section Steel pile tube of the unidirectional outflow of seeping water.
In the third scheme provided by the invention, the quantity that unit is squeezed in described expansion is one, it is geotechnological cloth bag that unit is squeezed in described expansion, described geotechnological cloth bag is wound in the stake side of described Variable Section Steel pile tube, and be distributed in the whole pile body of described Variable Section Steel pile tube, described geotechnological cloth bag and the colligation of described Variable Section Steel pile tube are fixed, and described grouting device is connected with one end that described geotechnological cloth bag is positioned at described Variable Section Steel pile tube stake top.
In above-mentioned three kinds of schemes, described grouting device is Grouting Pipe.
Further, in described Grouting Pipe, be provided with one way valve, make described in slurries single flow direction in Variable Section Steel pile tube or geotechnological cloth bag.
The present invention also provides a kind of injection forming Variable Section Steel pipe pile construction method that utilizes above-mentioned expansion to squeeze device, and it comprises:
Step 1: utilize rig technique pore-forming on building site;
Step 2: in described Variable Section Steel pile tube stake side, described expansion is installed and squeezes unit;
Step 3: after having holed, adopt mud in cement paste displacement boring;
Step 4: the Variable Section Steel pile tube that the crowded unit of described expansion is installed is put into boring, and carry out the maintenance work of cement paste;
Step 5: after cement paste maintenance completes, water under high pressure mud is injected to described Variable Section Steel pile tube or the crowded unit of described expansion.
Compared with prior art, the present invention has following beneficial effect:
Injection forming Variable Section Steel pipe pile construction method provided by the invention and expansion thereof are squeezed device and are first utilized rig pore-forming, after completing, pore-forming utilizes mud in cement paste displacement boring, again the steel pipe pile that the crowded device of described expansion is installed is put into boring, after cement paste in holing solidifies, water under high pressure mud is pressed in steel pipe pile or the crowded device of described expansion, described expansion is squeezed device and is expanded under the effect of water under high pressure mud, extruding strengthening surrounding soil, finally around steel pipe pile, form cement slurry and expand crowded head, greatly increase the interlocking of steel pipe pile and surrounding soil, and the running pulp phenomenon of having avoided Post Grouting Technique easily to occur, increase the reliability of its construction quality.
Brief description of the drawings
Below in conjunction with accompanying drawing, the invention will be further described:
The injection forming Variable Section Steel pipe pile construction method that Fig. 1 provides for the embodiment of the present invention one and expanding squeezes and in device, expands the structural representation that squeezes device;
The injection forming Variable Section Steel pipe pile construction method that Fig. 2 provides for the embodiment of the present invention one and expand the pile schematic diagram that squeezes Variable Section Steel pile tube in device;
The injection forming Variable Section Steel pipe pile construction method that Fig. 3 provides for the embodiment of the present invention two and expanding squeezes and in device, expands the structural representation that squeezes device;
The injection forming Variable Section Steel pipe pile construction method that Fig. 4 provides for the embodiment of the present invention two and expand the pile schematic diagram that squeezes Variable Section Steel pile tube in device;
The injection forming Variable Section Steel pipe pile construction method that Fig. 5 provides for the embodiment of the present invention three and expanding squeezes and in device, expands the structural representation that squeezes device;
The injection forming Variable Section Steel pipe pile construction method that Fig. 6 provides for the embodiment of the present invention three and expand the pile schematic diagram that squeezes Variable Section Steel pile tube in device;
The injection forming Variable Section Steel pipe pile construction method that Fig. 7 provides for the embodiment of the present invention and expand the structural representation that squeezes device king-pile top sealing plate.
In Fig. 1 to 7,
1: Variable Section Steel pile tube; 2: grouting device; 3: geotechnological cloth bag; 4: wire rope; 5: elastic cord; 6: hole; 7: stake top sealing plate; 71: grouting valve; 72: overflow valve.
Detailed description of the invention
Injection forming Variable Section Steel pipe pile construction method the present invention being proposed below in conjunction with the drawings and specific embodiments and expansion thereof are squeezed device and are described in further detail.According to the following describes and claims, advantages and features of the invention will be clearer.It should be noted that, accompanying drawing all adopts very the form of simplifying and all uses non-ratio accurately, only in order to convenient, the object of the aid illustration embodiment of the present invention lucidly.
Core concept of the present invention is, a kind of injection forming Variable Section Steel pipe pile construction method is provided and expands crowded device, first it utilize rig pore-forming, after completing, pore-forming utilizes mud in cement paste displacement boring, again the steel pipe pile that the crowded device of described expansion is installed is put into boring, after cement paste in holing solidifies, water under high pressure mud is pressed in steel pipe pile or the crowded device of described expansion, described expansion is squeezed device and is expanded under the effect of water under high pressure mud, extruding strengthening surrounding soil, finally around steel pipe pile, form cement slurry and expand crowded head, greatly increase the interlocking of steel pipe pile and surrounding soil, and the running pulp phenomenon of having avoided Post Grouting Technique easily to occur, increase the reliability of its construction quality.
Please refer to Fig. 1 to 7, the injection forming Variable Section Steel pipe pile construction method that Fig. 1 provides for the embodiment of the present invention one and expanding squeezes and in device, expands the structural representation that squeezes device; The injection forming Variable Section Steel pipe pile construction method that Fig. 2 provides for the embodiment of the present invention one and expand the pile schematic diagram that squeezes Variable Section Steel pile tube in device; The injection forming Variable Section Steel pipe pile construction method that Fig. 3 provides for the embodiment of the present invention two and expanding squeezes and in device, expands the structural representation that squeezes device; The injection forming Variable Section Steel pipe pile construction method that Fig. 4 provides for the embodiment of the present invention two and expand the pile schematic diagram that squeezes Variable Section Steel pile tube in device; The injection forming Variable Section Steel pipe pile construction method that Fig. 5 provides for the embodiment of the present invention three and expanding squeezes and in device, expands the structural representation that squeezes device; The injection forming Variable Section Steel pipe pile construction method that Fig. 6 provides for the embodiment of the present invention three and expand the pile schematic diagram that squeezes Variable Section Steel pile tube in device; The injection forming Variable Section Steel pipe pile construction method that Fig. 7 provides for the embodiment of the present invention and expand the structural representation that squeezes device king-pile top sealing plate.
Embodiment mono-
As depicted in figs. 1 and 2, the embodiment of the present invention provides a kind of expansion to squeeze device, it comprises the grouting device 2 that at least one expansion that is arranged at Variable Section Steel pile tube stake side is squeezed unit and is arranged at 1 top of described Variable Section Steel pile tube place, unit is squeezed in described expansion and described Variable Section Steel pile tube 1 colligation is fixed, and described grouting device 2 squeezes unit with described Variable Section Steel pile tube 1 or described expansion and is connected.
Further, the stake end of described Variable Section Steel pile tube 1, is provided with pile top, described pile top is towards the side away from described Variable Section Steel pile tube 1,1 time stake of described Variable Section Steel pile tube is convenient in the setting of described pile top, increase its lower degree of depth, those skilled in the art all can implement its scheme easily according to the description of above-mentioned pile top, and therefore pile top is not all unnecessarily also shown in Fig. 1,2.
In the present embodiment, the quantity that unit is squeezed in described expansion is one, it is geotechnological cloth bag 3 that unit is squeezed in described expansion, described geotechnological cloth bag 3 is placed on all sides that described Variable Section Steel pile tube 1 divides near its bottom, the two ends up and down of described geotechnological cloth bag 3 are all fixed by wire rope 4 and described Variable Section Steel pile tube 1 colligation, the bag body of described geotechnological cloth bag 3 passes through elastic cord 5 bandings in all sides of described Variable Section Steel pile tube 1, all sides corresponding with described geotechnological cloth bag 3 positions on described Variable Section Steel pile tube 1 have some holes 6, described grouting device 2 is connected with the stake top of described Variable Section Steel pile tube 1.
Further, the quantity of described elastic cord 5 is many, and described five elastic cords 5 are along the uniformly-spaced spread configuration of axis direction of described Variable Section Steel pile tube 1, with better by geotechnological cloth bag 3 lock rings on described Variable Section Steel pile tube 1.
Further, described hole 6 is uniformly distributed in all sides corresponding with described geotechnological cloth bag 3 positions on described Variable Section Steel pile tube 1, make the cement paste that grouting device 2 injects be injected into equably geotechnological cloth bag 3 by described hole 6, expand the crowded efficiency of expansion and the effect of squeezing device to increase.
The embodiment of the present invention also provides a kind of injection forming Variable Section Steel pipe pile construction method that utilizes above-mentioned expansion to squeeze device, and it comprises:
Step 1: utilize rig technique pore-forming on building site;
Step 2: in 1 side of described Variable Section Steel pile tube, described expansion is installed and squeezes unit (being described geotechnological cloth bag 3);
Step 3: after having holed, adopt mud in cement paste displacement boring;
Step 4: the Variable Section Steel pile tube 1 that described geotechnological cloth bag 3 is installed is put into boring, and carry out the maintenance work of cement paste;
Step 5: after cement paste maintenance completes, by Grouting Pipe 2, water under high pressure mud is injected to described Variable Section Steel pile tube 1, so that described water under high pressure mud injects geotechnological cloth bag 3 by the hole 6 on Variable Section Steel pile tube 1, surrounding soil is carried out squeezed, final all sides at the bottom of stake form cement paste and expand and squeeze head.
Embodiment bis-
The difference of the present embodiment and embodiment mono-is: as shown in Figure 3 and Figure 4, in the present embodiment, the quantity that the quantity of unit and the ring point of described Variable Section Steel pile tube 1 are squeezed in described expansion matches, described expansion is squeezed unit and is geotechnological cloth bag 3, described multiple geotechnological cloth bag 3 is placed on described Variable Section Steel pile tube 1 near the higher soil layer week side of bearing capacity, the two ends up and down of described geotechnological cloth bag 3 are all fixed by wire rope 4 and described Variable Section Steel pile tube 1 colligation, the bag status of described multiple geotechnological cloth bags 3 Tong Guo elastic cord 5 bandings in all sides of described Variable Section Steel pile tube 1, all sides corresponding with described geotechnological cloth bag 3 positions on described Variable Section Steel pile tube 1 have some holes 6, described grouting device 2 is connected with the stake top of described Variable Section Steel pile tube 1.
Further, the quantity of the described elastic cord 5 of the each geotechnological cloth bag 3 of banding is many, described many elastic cords 5 are along the uniformly-spaced spread configuration of axis direction of described Variable Section Steel pile tube 1, make each geotechnological cloth bag 3 all can by many elastic cords 5 better banding on Variable Section Steel pile tube 1.
Further, described hole 6 is uniformly distributed in all sides corresponding with described geotechnological cloth bag 3 positions on described Variable Section Steel pile tube 1, make the cement paste that grouting device 2 injects be injected into equably geotechnological cloth bag 3 by described hole 6, expand the crowded efficiency of expansion and the effect of squeezing device to increase.
The embodiment of the present invention also provides a kind of injection forming Variable Section Steel pipe pile construction method that utilizes above-mentioned expansion to squeeze device, and it comprises:
Step 1: utilize rig technique pore-forming on building site;
Step 2: in 1 side of described Variable Section Steel pile tube, described expansion is installed and squeezes unit (being described geotechnological cloth bag 3);
Step 3: after having holed, adopt mud in cement paste displacement boring;
Step 4: the Variable Section Steel pile tube 1 that described geotechnological cloth bag 3 is installed is put into boring, and carry out the maintenance work of cement paste;
Step 5: after cement paste maintenance completes, by Grouting Pipe 2, water under high pressure mud is injected to described Variable Section Steel pile tube 1, so that described water under high pressure mud injects multiple geotechnological cloth bags 3 by the hole 6 on Variable Section Steel pile tube 1, surrounding soil is carried out squeezed, finally around stake side, form multiple cement pastes and expand and squeeze head.
In above-mentioned two embodiment, the stake bottom of described Variable Section Steel pile tube 1 is equipped with a bottom sealing plate, described stake bottom sealing plate is used for preventing that slurries from spilling from Variable Section Steel pile tube 1 bottom and affect slip casting effect, those skilled in the art all can implement its scheme easily according to the description of above-mentioned stake bottom sealing plate, and therefore stake bottom sealing plate is not unnecessarily also shown in Fig. 1,2 or 3,4.Further, as shown in Figure 7, the stake top place of described Variable Section Steel pile tube 1 is all also provided with a top sealing plate 7, described stake top sealing plate 7 is provided with a grouting valve 71 and an overflow valve 72, described grouting device 2 is connected with described grouting valve 71, described grouting valve 71 and overflow valve 72 are one way valve, described grouting valve 71 makes described in slurries single flow direction in Variable Section Steel pile tube 1, and described overflow valve 72 makes the described Variable Section Steel pile tube 1 of the unidirectional outflow of infiltration producing after mud sediment in air in Variable Section Steel pile tube 1 and slurries.
Embodiment tri-
The difference of the present embodiment and upper two routine embodiment is: as shown in Figure 5 and Figure 6, the quantity that unit is squeezed in described expansion is one, it is geotechnological cloth bag 3 that unit is squeezed in described expansion, described geotechnological cloth bag 3 is wound in the stake side of described Variable Section Steel pile tube 1, and Spiral distribution is in the whole pile body of described Variable Section Steel pile tube 1, described geotechnological cloth bag 3 is fixed with described Variable Section Steel pile tube 1 colligation, described grouting device 2 is connected with one end that described geotechnological cloth bag 3 is positioned at 1 top of described Variable Section Steel pile tube, make grouting device 2 pre-buriedly just can carry out slip casting work to geotechnological cloth bag 3 without carrying out by this design, and geotechnological cloth bag 3 is wound on described Variable Section Steel pile tube 1 in the shape of a spiral, in the time that being strutted by slurries, geotechnological cloth bag 3 can play good filling chink, and the effect of increase Variable Section Steel pile tube 1 uplift resistance.
The embodiment of the present invention also provides a kind of injection forming Variable Section Steel pipe pile construction method that utilizes above-mentioned expansion to squeeze device, and it comprises:
Step 1: utilize rig technique pore-forming on building site;
Step 2: in 1 side of described Variable Section Steel pile tube, described expansion is installed and squeezes unit (being described geotechnological cloth bag 3);
Step 3: after having holed, adopt mud in cement paste displacement boring;
Step 4: the Variable Section Steel pile tube 1 that described geotechnological cloth bag 3 is installed is put into boring, and carry out the maintenance work of cement paste;
Step 5: after cement paste maintenance completes, by grouting device 2, water under high pressure mud is injected wherein from the top of described geotechnological cloth bag 3, surrounding soil is carried out squeezed, finally around stake side, form cement paste expand squeeze head.
In above-mentioned three embodiment, described grouting device 2 all can be Grouting Pipe, in described Grouting Pipe, is equipped with one way valve, makes described in slurries single flow direction in Variable Section Steel pile tube 1 or geotechnological cloth bag 3, to prevent slurry reflux.
In sum, the crowded device of the injection forming Variable Section Steel pipe pile construction method in above-mentioned all embodiment and expansion thereof all has following significant advantage:
(1) construction technology is simple: the in the situation that of not radical change conventional borehole construction process of bored concrete pile, intert to expand and squeeze device processing, installation and injection forming, very little on construction speed impact, construction technology is simple;
(2) construction equipment is simple and easy: no matter conventional steel pile tube adopts is squeezed into technique and be still pressed into technique, all needs large-scale professional construction machinery, and equipment investment is larger; And the construction of injection forming Variable Section Steel pile tube in above-described embodiment adopts small-sized drill pore-forming, conventional grouting equipment injection forming, equipment investment is few;
(3) reliable construction quality: geotechnological cloth bag struts and forms squeezed head, has increased the uplift resistance of stake, and the installation quality of controlling extruding-spreading device just can make construction quality be guaranteed completely;
(4) ambient influnence is less: that has stopped steel pipe pile construction squeezes into noise and soil compaction effect;
(5) integrated cost is cheap, consumption of materials is few: saved concrete, the consumption of cement paste; Construction equipment is simple and easy, less investment, and construction material is the conventional building materials such as geotechnological cloth bag, plastic pipe, cement, consumption is few, with low cost.
Therefore, the invention provides injection forming Variable Section Steel pipe pile construction method and expand crowded device the advantage that has not only embodied existing steel pipe pile, also be to be applicable to multiple soil layer area, be not subject to the impact of the unfavorable factors such as collapse hole, construction technology is simple simultaneously, without big machinery formula squeeze equipment, slip casting good stability, slurries can be controlled, not running pulp, the bearing capacity of stake improves obviously, has very important economy and social effect.
Obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the present invention the present invention.Like this, if within of the present invention these are changed and modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention is also intended to comprise these changes and modification interior.

Claims (15)

1. one kind is expanded crowded device, it is characterized in that, comprise the crowded unit of at least one expansion that is arranged at Variable Section Steel pile tube stake side and the grouting device that is arranged at described Variable Section Steel pile tube stake top place, unit is squeezed in described expansion and the colligation of described Variable Section Steel pile tube is fixed, and described grouting device squeezes unit with described Variable Section Steel pile tube or described expansion and is connected.
2. device is squeezed in expansion according to claim 1, it is characterized in that, the stake end of described Variable Section Steel pile tube is provided with pile top, and described pile top is towards the side away from described Variable Section Steel pile tube.
3. device is squeezed in expansion according to claim 1, it is characterized in that, the quantity that unit is squeezed in described expansion is one, it is geotechnological cloth bag that unit is squeezed in described expansion, described geotechnological cloth bag is placed on all sides that described Variable Section Steel pile tube divides near its bottom, the two ends up and down of described geotechnological cloth bag are all fixed by wire rope and the colligation of described Variable Section Steel pile tube, the bag body of described geotechnological cloth bag passes through elastic cord banding in all sides of described Variable Section Steel pile tube, all sides corresponding with described geotechnological cloth bag position on described Variable Section Steel pile tube have some holes, described grouting device is connected with the stake top of described Variable Section Steel pile tube.
4. device is squeezed in expansion according to claim 3, it is characterized in that, the quantity of described elastic cord is many, and described many elastic cords are along the uniformly-spaced spread configuration of axis direction of described Variable Section Steel pile tube.
5. device is squeezed in expansion according to claim 3, it is characterized in that, described hole is uniformly distributed in all sides corresponding with described geotechnological cloth bag position on described Variable Section Steel pile tube.
6. device is squeezed in expansion according to claim 1, it is characterized in that, the quantity that unit is squeezed in described expansion is multiple, described expansion is squeezed unit and is geotechnological cloth bag, described multiple geotechnological cloth bag is placed on described Variable Section Steel pile tube near the higher soil layer week side of bearing capacity, the two ends up and down of described geotechnological cloth bag are all fixed by wire rope and the colligation of described Variable Section Steel pile tube, the bag status of described multiple geotechnological cloth bags Tong Guo elastic cord banding in all sides of described Variable Section Steel pile tube, all sides corresponding with described geotechnological cloth bag position on described Variable Section Steel pile tube have some holes, described grouting device is connected with the stake top of described Variable Section Steel pile tube.
7. device is squeezed in expansion according to claim 6, it is characterized in that, the quantity of the described elastic cord of the each geotechnological cloth bag of banding is many, and described many elastic cords are along the uniformly-spaced spread configuration of axis direction of described Variable Section Steel pile tube.
8. device is squeezed in expansion according to claim 6, it is characterized in that, described hole is uniformly distributed in all sides corresponding with described geotechnological cloth bag position on described Variable Section Steel pile tube.
9. squeeze device according to the expansion described in claim 3 or 6, it is characterized in that, the stake bottom of described Variable Section Steel pile tube is provided with a bottom sealing plate.
10. squeeze device according to the expansion described in claim 3 or 6, it is characterized in that, the stake top place of described Variable Section Steel pile tube is provided with a top sealing plate, and described stake top sealing plate is provided with a grouting valve and an overflow valve, and described grouting device is connected with described grouting valve.
Device is squeezed in 11. expansions according to claim 10, it is characterized in that, described grouting valve and overflow valve are one way valve, and described grouting valve makes described in slurries single flow direction in Variable Section Steel pile tube, and described overflow valve makes air and the described Variable Section Steel pile tube of the unidirectional outflow of seeping water.
12. expand crowded device according to claim 1, it is characterized in that, the quantity that unit is squeezed in described expansion is one, it is geotechnological cloth bag that unit is squeezed in described expansion, described geotechnological cloth bag is wound in the stake side of described Variable Section Steel pile tube, and be distributed in the whole pile body of described Variable Section Steel pile tube, and described geotechnological cloth bag and the colligation of described Variable Section Steel pile tube are fixed, and described grouting device is connected with one end that described geotechnological cloth bag is positioned at described Variable Section Steel pile tube stake top.
13. squeeze device according to the expansion described in claim 4 or 7 or 12, it is characterized in that, described grouting device is Grouting Pipe.
Device is squeezed in 14. expansions according to claim 13, it is characterized in that, in described Grouting Pipe, is provided with one way valve, makes described in slurries single flow direction in Variable Section Steel pile tube or geotechnological cloth bag.
15. 1 kinds of injection forming Variable Section Steel pipe pile construction methods that utilize expansion as claimed in claim 1 to squeeze device, is characterized in that, comprising:
Step 1: utilize rig technique pore-forming on building site;
Step 2: in described Variable Section Steel pile tube stake side, described expansion is installed and squeezes unit;
Step 3: after having holed, adopt mud in cement paste displacement boring;
Step 4: the Variable Section Steel pile tube that the crowded unit of described expansion is installed is put into boring, and carry out the maintenance work of cement paste;
Step 5: after cement paste maintenance completes, water under high pressure mud is injected to described Variable Section Steel pile tube or the crowded unit of described expansion.
CN201410404414.0A 2014-08-15 2014-08-15 Construction method of slip-casting variable-cross section steel pipe pile and expansion and extrusion device of slip-casting variable-cross section steel pipe pile Pending CN104213554A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104696664A (en) * 2015-02-09 2015-06-10 郑州安源工程技术有限公司 High-polymer composite grouting method for leakage and sand inrush blocking of underground pipeline
CN104947654A (en) * 2015-07-01 2015-09-30 杭州江润科技有限公司 Complicated water area inclined rock face large-diameter cast-in-place pile and construction method
CN107893415A (en) * 2017-11-28 2018-04-10 淮海工学院 A kind of corrosion-resistant miniature steel pipe pile and manufacture method
CN108166484A (en) * 2017-12-18 2018-06-15 三峡大学 A kind of the expansive concrete steel-pipe pile and construction method of multi-functional stress dispersing type
CN108842759A (en) * 2018-07-20 2018-11-20 胡喜来 The built pile and its construction technology of prefabricated tubular pile and bored concrete pile

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09279574A (en) * 1996-04-11 1997-10-28 Shimizu Corp Frictional force increased pile and construction method thereof
CN201241344Y (en) * 2008-08-05 2009-05-20 中国京冶工程技术有限公司 Controllable capsule type expansion device
CN101781890A (en) * 2010-03-19 2010-07-21 上海建工(集团)总公司 Screw cast-in-place pile construction method
CN102605773A (en) * 2012-04-16 2012-07-25 上海市建工设计研究院有限公司 Construction method of slip-casting expanded-base cast-in-situ bored pile and extruding-extending device thereof
CN103114578A (en) * 2013-02-06 2013-05-22 上海市建工设计研究院有限公司 Grouting molding pedestal pile and construction method thereof and pedestal expanding device
CN204080796U (en) * 2014-08-15 2015-01-07 上海市建工设计研究院有限公司 Injection forming Variable Section Steel pile tube expands crowded device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09279574A (en) * 1996-04-11 1997-10-28 Shimizu Corp Frictional force increased pile and construction method thereof
CN201241344Y (en) * 2008-08-05 2009-05-20 中国京冶工程技术有限公司 Controllable capsule type expansion device
CN101781890A (en) * 2010-03-19 2010-07-21 上海建工(集团)总公司 Screw cast-in-place pile construction method
CN102605773A (en) * 2012-04-16 2012-07-25 上海市建工设计研究院有限公司 Construction method of slip-casting expanded-base cast-in-situ bored pile and extruding-extending device thereof
CN103114578A (en) * 2013-02-06 2013-05-22 上海市建工设计研究院有限公司 Grouting molding pedestal pile and construction method thereof and pedestal expanding device
CN204080796U (en) * 2014-08-15 2015-01-07 上海市建工设计研究院有限公司 Injection forming Variable Section Steel pile tube expands crowded device

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104696664A (en) * 2015-02-09 2015-06-10 郑州安源工程技术有限公司 High-polymer composite grouting method for leakage and sand inrush blocking of underground pipeline
CN104947654A (en) * 2015-07-01 2015-09-30 杭州江润科技有限公司 Complicated water area inclined rock face large-diameter cast-in-place pile and construction method
CN107893415A (en) * 2017-11-28 2018-04-10 淮海工学院 A kind of corrosion-resistant miniature steel pipe pile and manufacture method
CN107893415B (en) * 2017-11-28 2019-10-01 淮海工学院 A kind of corrosion-resistant miniature steel pipe pile and manufacturing method
CN108166484A (en) * 2017-12-18 2018-06-15 三峡大学 A kind of the expansive concrete steel-pipe pile and construction method of multi-functional stress dispersing type
CN108842759A (en) * 2018-07-20 2018-11-20 胡喜来 The built pile and its construction technology of prefabricated tubular pile and bored concrete pile
CN108842759B (en) * 2018-07-20 2020-11-24 胡喜来 Combined pile of prefabricated pipe pile and cast-in-place pile and construction process thereof

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