CN102477747A - Grouting spiral anchor base - Google Patents
Grouting spiral anchor base Download PDFInfo
- Publication number
- CN102477747A CN102477747A CN2010105606274A CN201010560627A CN102477747A CN 102477747 A CN102477747 A CN 102477747A CN 2010105606274 A CN2010105606274 A CN 2010105606274A CN 201010560627 A CN201010560627 A CN 201010560627A CN 102477747 A CN102477747 A CN 102477747A
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- CN
- China
- Prior art keywords
- mud jacking
- anchor
- grouting
- spiral anchor
- screw anchor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The invention provides a grouting spiral anchor base. The grouting spiral anchor base comprises a bearing platform and a stand column which is arranged on the bearing platform, wherein at least one of anchor rods is arranged under the bearing platform; the tail end or the middle part of each anchor rod is provided with a spiral anchor blade; the anchor rods are grouting pipes; each spiral anchor blade is provided with a grouting opening; and each grouting opening is externally provided with a spacer. The grouting spiral anchor base consists of a spiral anchor base and an external grout; gaps generated by anchoring and gaps of soil body can be effectively filled after the filled grout is solidified; the disturbance influence on the peripheral soil body during anchoring can be reduced; the compactness of the peripheral soil body around the anchor blades can be increased; the diameter of an anchor plate is indirectly increased; the displacement of the base under the external force is effectively reduced; and the bearing capacity of a spiral anchor is improved. When the grouting spiral anchor base is compared with an un-grouting spiral anchor base, the uplift-resistant bearing capacity of the grouting spiral anchor base can be improved by 40-70%, and the very considerable economic benefit and social benefit can be obtained.
Description
Technical field
The present invention relates to a kind of basis of iron tower of power transmission line, specifically basic improvement to Screw Anchor.
Background technology
In the line, for water level higher sand or silty clay ground, batter post slab foundation excavated volume is bigger; The dewatering construction difficulty, the bored concrete pile foundation construction needs big machinery, needs mud off during boring; Therefore long construction period and bigger to environmental disruption, can adopt bearing capacity high; Have fewer environmental impacts the Screw Anchor basis of convenient and quick construction.Because Screw Anchor has disturbance to a certain degree to the anchor surrounding soil when casting anchor, make the advantage on Screw Anchor basis can not get fully playing.
Summary of the invention
The purpose of this invention is to provide a kind of Screw Anchor basis that can remedy causes the transmission line of electricity mud jacking Screw Anchor of adverse effect basic to soil disturbance.
In addition, second purpose of the present invention is to prevent mud or soil bits entering anchor pole inside when casting anchor, and guarantees that the mud jacking valve is not damaged in the process of casting anchor.
For realizing above-mentioned purpose, the present invention adopts following technical scheme:
The present invention includes cushion cap and be positioned at the column on the cushion cap; At least one anchor pole is set below said cushion cap, at the end or the middle part of anchor pole the Screw Anchor leaf is set, described anchor pole is a madjack pipe; On described Screw Anchor leaf, the mud jacking mouth is set, mud jacking mouth arranged outside pad.
Be bonded in the outside of mud jacking mouth at described pad.
Described pad is connected with hold down gag.
Have the mud jacking mouth in the both sides of Screw Anchor leaf, the outer sticking patch of each mud jacking mouth; Described hold down gag is a spring, and both ends of the spring connects two pads that are oppositely arranged respectively.
Described hold down gag comprises the rubber stopper that is positioned at mud jacking mouth place, on the described rubber stopper stay cord is set.
Described hold down gag is a block rubber, and the thickness of said block rubber is not less than the height of mud jacking mouth, and long rope is set on described block rubber.
Adopt the present invention of technique scheme, this fundamental mode is made up of Screw Anchor basis and outside mud jacking, after the slurries of injection solidify; Can fill the slit of generation when casting anchor and the gap of the soil body effectively; Can the disturbing influence to surrounding soil in the process of casting anchor be reduced, increase the compactness of anchor leaf surrounding soil, and increased anchor dish diameter indirectly; Effectively reduce the external force effect displacement on basis down, improved the bearing capacity of Screw Anchor.Compare with mud jacking Screw Anchor basis not, mud jacking Screw Anchor anti-pulling capacity can improve 40%～70%, has considerable economy and society benefit.
In addition, because the anchor leaf of the present invention after will improving be directly as the mud jacking valve, should be able to be when casting anchor with the mud jacking hole plug; Prevent that mud or soil bits from getting into steel duct, guarantee that simultaneously the mud jacking valve is not damaged in the process of casting anchor, should be able to make things convenient for during mud jacking and open the mud jacking hole in time and carry out the mud jacking operation; Make slurries can fill the slit of generation when casting anchor and the gap of the soil body effectively, the disturbing influence to surrounding soil in the process of casting anchor is reduced, increase the compactness of anchor leaf surrounding soil; And increased anchor leaf diameter indirectly; Effectively reduced basic displacement, improved Screw Anchor on pull out bearing capacity, thereby realize considerable economy and society benefit.
Description of drawings
Fig. 1 is original Screw Anchor foundation structure sketch map.
Fig. 2 is the elevation on mud jacking Screw Anchor of the present invention basis.
Fig. 3 is the plan view of Fig. 2.
Fig. 4 is the enlarged diagram of mud jacking mouth among the present invention.
Fig. 5 is the enlarged diagram of Intermediate gasket of the present invention.
Fig. 6 is the structural representation of spring for hold down gag among the present invention.
Fig. 7 is the structural representation of rubber stopper and stay cord for hold down gag among the present invention.
Fig. 8 is the structural representation of block rubber and long rope for hold down gag among the present invention.
Fig. 9 is the vertical view of block rubber and long rope for hold down gag among the present invention.
The specific embodiment
Like Fig. 2, shown in Figure 3, the present invention includes cushion cap 1 and be positioned at the column 2 on the cushion cap 1, at least one anchor pole 3 is set below cushion cap 1, the quantity of anchor pole 3 is set according to the actual requirements, can be for single, also can be two, three, five or the like.End or middle part at anchor pole 3 are provided with Screw Anchor leaf 4.
In use; Anchor pole 3 upper ends and pressure mud jacking mechanical connection, anchor leaf 4 transform a simple one way valve as, promptly reserves mud jacking mouth 5 at Screw Anchor anchor pole and anchor leaf junction; Mud jacking mouth 5 outsides are with pad 6 shutoff; Prevent that the soil body from getting in the anchor pole 3, wash pad 6 open through pressure during mud jacking, open mud jacking mouth 5.Be not damaged for the process Intermediate gasket that guarantees to cast anchor, the anchor pole around the pad is made as recessed cross section, with the protection pad, like Fig. 4, shown in Figure 5.
After the desired depth of casting anchor, can in hollow anchor bar, carry out the pressure mud jacking, carry out mud jacking through the one way valve on the anchor pole.
As shown in Figure 6, set up hold down gag in the present embodiment.Have mud jacking mouth 5 in the both sides of Screw Anchor leaf 4, each mud jacking mouth 5 outsides bonding pad 6; Above-mentioned hold down gag is a spring 7, and spring 7 two ends connect two pads 6 that are oppositely arranged respectively.
Need to prove that spring 7 degrees of tightness can be confirmed according to mud jacking pressure, have both guaranteed the sealing of mud jacking mouth 5 in the process of casting anchor, and have protected pad 6 not to be damaged again.When under the Screw Anchor after desired depth, mud jacking pressure capable of using is washed pad 6 open and is carried out mud jacking, stop mud jacking after, spring 7 is strained pad once more, sealing mud jacking hole.This mud jacking valve is applicable to the situation of mud jacking hole symmetric arrangement.
As shown in Figure 7, set up hold down gag in the present embodiment.Above-mentioned hold down gag comprises the rubber stopper 8 that is positioned at mud jacking mouth 5 places, and stay cord 9 is set on the rubber stopper 8.Like this, mud jacking mouth 5 usefulness rubber stoppers stop up, and rubber stopper 8 inner wall sides are reserved annulus, and dress stay cord 9 ties up on ring, and stay cord 9 other ends are pulled out outside the anchor pole, before the mud jacking rubber stopper 8 are pulled out in the hole and carry out mud jacking.
Like Fig. 8, shown in Figure 9, set up hold down gag in the present embodiment.Above-mentioned hold down gag is a block rubber 10, and the thickness of block rubber 10 is not less than the height of mud jacking mouth 5, and long rope 11 is set on block rubber 10.During use; With block rubber 10 place with mud jacking hole 5 with high position, mud jacking hole 5 is stopped up, above the block rubber 10 annulus is set; To grow rope 11 lies on the annulus; Long rope 11 other ends are pulled out outside the anchor pole, before the mud jacking block rubber 10 are pulled out in manage and carry out mud jacking, and this mud jacking valve is applicable to that sustained height has the situation in a plurality of mud jacking hole.
Need to prove that rubber stopper 8, block rubber 10 among embodiment 3 and the embodiment 4 all can adopt other material.
Claims (6)
1. a mud jacking Screw Anchor is basic; It comprises cushion cap (1) and is positioned at the column (2) on the cushion cap (1); In the below of said cushion cap (1) at least one anchor pole (3) is set, at the end or the middle part of anchor pole (3) Screw Anchor leaf (4) is set, it is characterized in that: described anchor pole (3) is a madjack pipe; Mud jacking mouth (5) is set, mud jacking mouth (5) arranged outside pad (6) on described Screw Anchor leaf (4).
2. mud jacking Screw Anchor according to claim 1 basis is characterized in that: the outside that is bonded in mud jacking mouth (5) at described pad (6).
3. mud jacking Screw Anchor according to claim 2 basis, it is characterized in that: described pad (6) is connected with hold down gag.
4. mud jacking Screw Anchor according to claim 3 basis is characterized in that: have mud jacking mouth (5) in the both sides of Screw Anchor leaf (4), each outer sticking patch of mud jacking mouth (5) (6); Described hold down gag is spring (7), and spring (7) two ends connect two pads (6) that are oppositely arranged respectively.
5. mud jacking Screw Anchor according to claim 3 basis is characterized in that: described hold down gag comprises and is positioned at the rubber stopper (8) that mud jacking mouth (5) is located, and stay cord (9) is set on the described rubber stopper (8).
6. mud jacking Screw Anchor according to claim 3 basis; It is characterized in that: described hold down gag is block rubber (10); The thickness of said block rubber (10) is not less than the height of mud jacking mouth (5), and long rope (11) is set on described block rubber (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105606274A CN102477747A (en) | 2010-11-26 | 2010-11-26 | Grouting spiral anchor base |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105606274A CN102477747A (en) | 2010-11-26 | 2010-11-26 | Grouting spiral anchor base |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102477747A true CN102477747A (en) | 2012-05-30 |
Family
ID=46090518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105606274A Pending CN102477747A (en) | 2010-11-26 | 2010-11-26 | Grouting spiral anchor base |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102477747A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110241821A (en) * | 2019-06-17 | 2019-09-17 | 中国十七冶集团有限公司 | A kind of barb-type soil bolt and its construction method |
| CN113668526A (en) * | 2021-10-08 | 2021-11-19 | 沈阳建筑大学 | Land wind power foundation prestress spiral anchor rod structure capable of being recycled |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2234907A (en) * | 1939-10-06 | 1941-03-11 | Malleable Iron Fittings Co | Screw anchor |
| US4068445A (en) * | 1975-02-18 | 1978-01-17 | A. B. Chance Company | Lightweight, screw anchor supported foundation and method of installing same |
| GB2158493A (en) * | 1984-03-16 | 1985-11-13 | Earl & Wright Ltd | Method of installing a pile |
| CN2179460Y (en) * | 1994-01-08 | 1994-10-12 | 唐云芳 | Spiral anchoring-bolt machine |
| CN201172830Y (en) * | 2008-03-11 | 2008-12-31 | 山河建设集团有限公司 | Anchor rod static-pressing pile foundation in tower crane |
| CN101892671A (en) * | 2010-08-11 | 2010-11-24 | 霍宏斌 | Pile anchor rod foundation structure |
| CN201865118U (en) * | 2010-11-26 | 2011-06-15 | 河南省电力勘测设计院 | Grouting spiral anchor base |
-
2010
- 2010-11-26 CN CN2010105606274A patent/CN102477747A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2234907A (en) * | 1939-10-06 | 1941-03-11 | Malleable Iron Fittings Co | Screw anchor |
| US4068445A (en) * | 1975-02-18 | 1978-01-17 | A. B. Chance Company | Lightweight, screw anchor supported foundation and method of installing same |
| GB2158493A (en) * | 1984-03-16 | 1985-11-13 | Earl & Wright Ltd | Method of installing a pile |
| CN2179460Y (en) * | 1994-01-08 | 1994-10-12 | 唐云芳 | Spiral anchoring-bolt machine |
| CN201172830Y (en) * | 2008-03-11 | 2008-12-31 | 山河建设集团有限公司 | Anchor rod static-pressing pile foundation in tower crane |
| CN101892671A (en) * | 2010-08-11 | 2010-11-24 | 霍宏斌 | Pile anchor rod foundation structure |
| CN201865118U (en) * | 2010-11-26 | 2011-06-15 | 河南省电力勘测设计院 | Grouting spiral anchor base |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110241821A (en) * | 2019-06-17 | 2019-09-17 | 中国十七冶集团有限公司 | A kind of barb-type soil bolt and its construction method |
| CN113668526A (en) * | 2021-10-08 | 2021-11-19 | 沈阳建筑大学 | Land wind power foundation prestress spiral anchor rod structure capable of being recycled |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120530 |