CN103184738B - Grouting guide pipe restraint ring mounting structure and method for mounting grouting guide pipes by using restraint rings - Google Patents
Grouting guide pipe restraint ring mounting structure and method for mounting grouting guide pipes by using restraint rings Download PDFInfo
- Publication number
- CN103184738B CN103184738B CN201210400024.7A CN201210400024A CN103184738B CN 103184738 B CN103184738 B CN 103184738B CN 201210400024 A CN201210400024 A CN 201210400024A CN 103184738 B CN103184738 B CN 103184738B
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- Prior art keywords
- grouting pipe
- reinforcing cage
- confinement ring
- cage
- grouting
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- 238000000034 method Methods 0.000 title claims abstract description 27
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 77
- 239000002184 metal Substances 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 210000003205 muscle Anatomy 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 18
- 239000013049 sediment Substances 0.000 abstract description 5
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 230000000452 restraining effect Effects 0.000 abstract 1
- 238000005728 strengthening Methods 0.000 abstract 1
- 239000000725 suspension Substances 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 8
- 230000009286 beneficial effect Effects 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000007569 slipcasting Methods 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000013517 stratification Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Piles And Underground Anchors (AREA)
Abstract
The invention provides a method for mounting grouting guide pipes by using restraint rings. The method comprises the following steps: a, producing the restraint rings for restraining the grouting guide pipes; b, fixing the restraint rings, namely fixing the well made restraint rings onto the inner sides of bound reinforcing cage strengthening ribs; c, mounting the grouting guide pipes: individually penetrating the grouting guide pipes into the restraint rings along the length of a reinforcing cage, and fixing the grouting guide pipes and the reinforcing cage at the positions of all restraint rings; d, enabling the suspension cage to enter into a hole: after pore-forming operation is achieved, the reinforcing cage in which the grouting guide pipes are well mounted is hung into the hole; and e, untying and putting in place: releasing the top binding and fixing point of the grouting guide pipe at the reinforcing cage so as to enable the grouting guide pipe to sink into the bottom of the hole under the action of the dead weight or external force. According to the invention, while a grouting valve at a pole end is guaranteed to sink into a sediment layer at a pole bottom, the position of the reinforcing cage can be effectively controlled, the construction quality of the pile foundation project is effectively ensured, and the construction method is simple and easy to operate, and the construction and building costs are greatly saved.
Description
Technical field
The present invention relates to a kind of building site site operation apparatus and method, specifically, relate to a kind of method of grouting pipe confinement ring mounting structure and confinement ring installation grouting pipe.
Background technology
Castinplace pile Post Grouting Technique is effective new technique improving bearing capacity of pile foundation that the Ministry of Construction encourages to promote, adopt this technology effectively can improve ordinary concrete castinplace pile bearing capacity of single pile more than 30%, by means of the economic serviceability that it is outstanding, this technology is used widely in increasing Foundation Design.As one critical process guaranteeing this technology construction quality, control to seem particularly important to the installation of grouting pipe.
At present, during post grouting under pile filling pile construction, generally post jacking conduit and reinforcing cage being carried out colligation or be welded and fixed, for guaranteeing that pile end grouting valve inserts in sediment layer, by reinforcement cage immersion on earth, and not adopting the position of hanging muscle control reinforcing cage.Like this, one is under reinforcing cage Gravitative Loads, grouting pipe and pile end grouting valve fragile; Two is that the verticality of reinforcing cage in pile body and pile body topping are wayward; The more important thing is; the castinplace pile dug with mud off pore-forming is revolved for employing; when pore-forming; due to secondary or the repeatedly clear factor such as hole and hole depth measure error; usually cause backbreak or at the bottom of hole lower than design elevation phenomenon; and reinforcing cage is certain according to designing pile length making length; after reinforcing cage transfers to the end; cage top mark is high will lower than design of pile top absolute altitude; will find that reinforcing cage reserves anchor rib curtailment after the later stage cuts protection pile crown; serious even can't see reinforcing bar, causes certain mass hidden danger to engineering, and deals with and extremely bother.Early stage lengthen reinforcing cage or later stage if adopted when making reinforcing cage and cut spreading anchor rib method after protection pile crown, then will certainly cause manpower and waste of material, increase construction cost.
Summary of the invention
For above-mentioned deficiency of the prior art, the invention provides and a kind ofly can ensure construction quality, improve efficiency of construction and save the method that raw-material grouting pipe confinement ring mounting structure and confinement ring install grouting pipe.
The technical solution used in the present invention is:
Utilize confinement ring to install a method for grouting pipe, the method comprises the steps:
A. the confinement ring of constraint grouting pipe is made;
B. fixed constraint ring, is fixed on inside the complete reinforcing cage reinforcing rib of colligation by the confinement ring made;
C. grouting pipe is installed, grouting pipe is penetrated in confinement ring one by one along length of reinforcing cage, in each confinement ring position, grouting pipe and reinforcing cage are carried out interim colligation and fix;
D. cage hand-hole, after pore-forming operation completes, hangs in hole by the reinforcing cage installing grouting pipe; At aperture place along with reinforcing cage puts into the degree of depth in hole, untie the interim colligation fixed point of grouting pipe and reinforcing cage one by one; Put into behind hole until reinforcing cage, employing is hung muscle and is hung reinforcing cage, controls cage top mark high consistent with design elevation;
E. lighten restrictions in place, unclamp the top colligation fixed point of grouting pipe on reinforcing cage, make grouting pipe in deadweight or sink down at the bottom of hole by External Force Acting.
A kind of grouting pipe confinement ring mounting structure, comprises grouting pipe and reinforcing cage, the confinement ring that 3-5cm metal tube makes is fixed on inside the complete reinforcing cage reinforcing rib of colligation.
The present invention utilizes confinement ring to install the method for grouting pipe, while guarantee pile end grouting valve sinks to pile bottom sediment layer, effectively can control the position of reinforcing cage, effectively ensure that pile foundation engineering quality, and this construction method is simple to operation, construction and construction cost are greatly saved.
Accompanying drawing explanation
Fig. 1 is post grouting under pile castinplace pile process principle figure;
Fig. 2 is that the present invention utilizes confinement ring to install the construction method schematic diagram of grouting pipe;
Fig. 3 is the reinforcing cage sectional schematic diagram of construction method of the present invention;
Fig. 4 is that the present invention utilizes confinement ring to install confinement ring and grouting pipe scheme of installation in the construction method of grouting pipe;
Fig. 5 is the schematic diagram untiing interim colligation point in construction method of the present invention when cage hand-hole from bottom to top one by one;
Utilize when Fig. 6 is placement of cage of reinforcing bar in construction method of the present invention and hang the high schematic diagram of muscle control reinforcing cage top mark.
Critical piece symbol description in accompanying drawing:
In figure:
1, grouting pipe 2, each geological stratification
3, bearing stratum 4, grouting valve
5, cement paste 6, sediment layer
7, reinforcing cage 8, confinement ring
9, hanging beam 10, casing
11, reinforcing rib 12, hang muscle
13, iron wire 14, weld seam.
Detailed description of the invention
Referring to drawings and Examples, the present invention will be described in detail:
The present invention utilizes the method construction sequence of confinement ring installation grouting pipe as follows:
First confinement ring makes; Then carry out confinement ring successively to fix; Grouting pipe is installed; Cage hand-hole, lighten restrictions in place.
Concrete steps:
A. the confinement ring 8 of constraint grouting pipe 1 is made;
B. fixed constraint ring 8; The confinement ring 8 made is fixedly welded on inside the reinforcing rib 11 on the complete reinforcing cage of colligation 7;
C. grouting pipe 1 is installed; Grouting pipe is penetrated in confinement ring 8 along length of reinforcing cage one by one, utilizes 12# iron wire 13 that grouting pipe and reinforcing cage are carried out interim colligation in each confinement ring position and fix;
D. cage hand-hole, lighten restrictions in place: after pore-forming operation completes, the reinforcing cage installing grouting pipe is hung in hole; At aperture place along with reinforcing cage puts into the degree of depth in hole, untie the interim colligation fixed point of grouting pipe and reinforcing cage from bottom to top one by one, make grouting pipe in deadweight or sink down at the bottom of hole by External Force Acting, thus ensure that pile grouting valve inserts in pile bottom sediment layer, when water level in borehole is higher, buoyancy is larger, must until conduit to insert after at the bottom of stake again by conduit upper end and reinforcing cage colligation firm; Put into behind hole until reinforcing cage, employing is hung muscle and is hung reinforcing cage, controls cage top mark high consistent with design elevation.
Described confinement ring
8for metal tube.
The length of described metal tube is 3-5cm, diameter two specifications larger than grouting pipe intended diameter of described metal tube.
Describedly first hang a logical line along the position need installing grouting pipe when fixed constraint ring, make a mark in the relevant position of the reinforcing rib need installing confinement ring; The relevant position fixed constraint ring made marks.To guarantee that confinement ring is along catheter length direction arranged concentric.
The fixed form of described confinement ring is welding.
Described grouting pipe and reinforcing cage fixed form are that colligation is fixed.
During described installation conduit, the length that reinforcing cage top is stretched out in conduit upper end is advisable can exceed casing top mark height 30-50cm, when being beneficial to later stage slip casting and the connection of slip casting flexible pipe; The length that reinforcing cage is stretched out in lower end is advisable to be greater than 10cm, is beneficial to the installation of pile grouting valve.
During described making reinforcing cage, the reserved anchor bar of reinforcing cage upper end edge catheter position and conduit, with long or compared with the short 30-50cm in conduit upper end, are beneficial to fixing of grouting pipe rear upper end in place and reinforcing cage.
Described confinement ring along the spacing of duct direction and the vertical spacing of the reinforcing rib of reinforcing cage consistent, be generally 2m.
The method points for attention utilizing confinement ring to install grouting pipe of the present invention:
. the diameter of steel tube as confinement ring will take into full account connected mode in the middle of grouting pipe, should ensure that conduit can pass through smoothly in confinement ring;
. confinement ring, along the necessary vertical concentric of duct direction, is beneficial to the installation of conduit;
. interim colligation point must firmly, and the point of colligation especially topmost must bear the deadweight of whole conduit;
. to lighten restrictions on one by one to the interim colligation point of conduit from bottom to top during cage hand-hole, must not omit;
. when installing conduit, catheter length should stretch out reinforcing cage top certain length in upper end, is generally advisable can exceed casing top mark height 30-50cm, when being beneficial to later stage slip casting and the connection of slip casting flexible pipe; Reinforcing cage certain length is stretched out in lower end, is generally advisable to be greater than 10cm, is beneficial to the installation of pile grouting valve;
. when water level in borehole is higher, buoyancy is larger, must to insert after at the bottom of stake again by conduit upper end and reinforcing cage colligation or firm welding until conduit.Therefore, when making reinforcing cage, the reserved anchor bar of reinforcing cage upper end edge catheter position and conduit, with long or compared with the short 30 ~ 50cm in conduit upper end, are beneficial to the fixing of grouting pipe rear upper end in place and reinforcing cage.
Claims (9)
1. utilize confinement ring to install a method for grouting pipe, it is characterized in that, the method comprises the steps:
A. the confinement ring of constraint grouting pipe is made;
B. fixed constraint ring, is fixed on inside the complete reinforcing cage reinforcing rib of colligation by the confinement ring made;
C. grouting pipe is installed, grouting pipe is penetrated in confinement ring one by one along length of reinforcing cage, in each confinement ring position, grouting pipe and reinforcing cage are carried out interim colligation and fix;
D. cage hand-hole, after pore-forming operation completes, hangs in hole by the reinforcing cage installing grouting pipe; At aperture place along with reinforcing cage puts into the degree of depth in hole, untie the interim colligation fixed point of grouting pipe and reinforcing cage one by one; Put into behind hole until reinforcing cage, employing is hung muscle and is hung reinforcing cage, controls cage top mark high consistent with design elevation;
E. lighten restrictions in place, unclamp the top colligation fixed point of grouting pipe on reinforcing cage, make grouting pipe in deadweight or sink down at the bottom of hole by External Force Acting.
2. utilize confinement ring that the method for grouting pipe is installed according to claim 1, it is characterized in that: described confinement ring is metal tube.
3. utilize confinement ring that the method for grouting pipe is installed according to claim 2, it is characterized in that: the length of described metal tube is 3-5cm.
4. utilize confinement ring that the method for grouting pipe is installed according to claim 1, it is characterized in that: first hang a logical line along the position need installing grouting pipe when fixing described confinement ring, make a mark in the relevant position of the reinforcing rib need installing confinement ring; The relevant position fixed constraint ring made marks.
5. utilize confinement ring that the method for grouting pipe is installed according to claim 1, it is characterized in that: the fixed form of described confinement ring is welding.
6. utilize confinement ring that the method for grouting pipe is installed according to claim 1, it is characterized in that: described grouting pipe and reinforcing cage fixed form are that colligation is fixed.
7. utilize confinement ring to install the method for grouting pipe according to claim 1, it is characterized in that: when installing described grouting pipe, the length that reinforcing cage top is stretched out in grouting pipe upper end is 30-50cm, and the length that reinforcing cage is stretched out in lower end is greater than 10cm.
8. utilize confinement ring to install the method for grouting pipe according to claim 1, it is characterized in that: when making described reinforcing cage, the reserved anchor bar of reinforcing cage upper end edge catheter position and conduit are with long.
9. utilize confinement ring to install the method for grouting pipe according to claim 1, it is characterized in that: described confinement ring is identical with the spacing of reinforcing rib along the arrangement pitch of grouting pipe length direction, spacing is 2m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210400024.7A CN103184738B (en) | 2012-10-20 | 2012-10-20 | Grouting guide pipe restraint ring mounting structure and method for mounting grouting guide pipes by using restraint rings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210400024.7A CN103184738B (en) | 2012-10-20 | 2012-10-20 | Grouting guide pipe restraint ring mounting structure and method for mounting grouting guide pipes by using restraint rings |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103184738A CN103184738A (en) | 2013-07-03 |
| CN103184738B true CN103184738B (en) | 2015-02-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210400024.7A Active CN103184738B (en) | 2012-10-20 | 2012-10-20 | Grouting guide pipe restraint ring mounting structure and method for mounting grouting guide pipes by using restraint rings |
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| CN (1) | CN103184738B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106638607A (en) * | 2016-11-24 | 2017-05-10 | 中航勘察设计研究院有限公司 | Connecting method for grouting pipe and reinforcement cage in pile foundation post grouting construction |
| CN107905217A (en) * | 2017-11-27 | 2018-04-13 | 陕西建工机械施工集团有限公司 | A kind of bored pile guide and reinforcing bar basket assembly and combinations thereof installation method |
| CN110080313A (en) * | 2019-03-20 | 2019-08-02 | 福建建工集团有限责任公司 | A kind of anti-float anchor rod shores the self-locking anchor head of formula and building anti-float method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL8501757A (en) * | 1985-06-19 | 1987-01-16 | Verstraeten Funderingstech Bv | Foundation pile, load capacity increasing method - has grout injected under pressure around part of pile height |
| JP3926364B2 (en) * | 2004-11-11 | 2007-06-06 | 東日本旅客鉄道株式会社 | Construction method of tip-reinforced cast-in-place piles |
| CN101054799A (en) * | 2007-01-12 | 2007-10-17 | 建研地基基础工程有限责任公司 | Post-grouting construction method for long helical bore grouting pile and its grouting device |
| CN202073098U (en) * | 2011-05-10 | 2011-12-14 | 中国十五冶金建设有限公司 | Anti-deflection pipe thread connector flow guiding device |
| CN102644284A (en) * | 2012-04-11 | 2012-08-22 | 沈阳中建东设岩土工程有限公司 | Method and device for post grouting in pile bottom |
| CN202809611U (en) * | 2012-10-20 | 2013-03-20 | 二十二冶集团第一建设有限公司 | Grouting conduit restraint ring installation structure |
-
2012
- 2012-10-20 CN CN201210400024.7A patent/CN103184738B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL8501757A (en) * | 1985-06-19 | 1987-01-16 | Verstraeten Funderingstech Bv | Foundation pile, load capacity increasing method - has grout injected under pressure around part of pile height |
| JP3926364B2 (en) * | 2004-11-11 | 2007-06-06 | 東日本旅客鉄道株式会社 | Construction method of tip-reinforced cast-in-place piles |
| CN101054799A (en) * | 2007-01-12 | 2007-10-17 | 建研地基基础工程有限责任公司 | Post-grouting construction method for long helical bore grouting pile and its grouting device |
| CN202073098U (en) * | 2011-05-10 | 2011-12-14 | 中国十五冶金建设有限公司 | Anti-deflection pipe thread connector flow guiding device |
| CN102644284A (en) * | 2012-04-11 | 2012-08-22 | 沈阳中建东设岩土工程有限公司 | Method and device for post grouting in pile bottom |
| CN202809611U (en) * | 2012-10-20 | 2013-03-20 | 二十二冶集团第一建设有限公司 | Grouting conduit restraint ring installation structure |
Non-Patent Citations (1)
| Title |
|---|
| JP特许第3926364号B2 2007.06.06 * |
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| Publication number | Publication date |
|---|---|
| CN103184738A (en) | 2013-07-03 |
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Effective date of registration: 20240818 Address after: 064000 happiness Road 16, Fengrun District, Hebei, Tangshan City Patentee after: China MCC22 Group Corp.,Ltd. Country or region after: China Address before: 064000 9 communities, Fengrun District, Tangshan City, Hebei Province Patentee before: The 1st Construction Corp., Ltd. of 22MCC Group Country or region before: China |
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