CN1699701A - Method for slope reinforcement - Google Patents
Method for slope reinforcement Download PDFInfo
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- CN1699701A CN1699701A CN 200510034722 CN200510034722A CN1699701A CN 1699701 A CN1699701 A CN 1699701A CN 200510034722 CN200510034722 CN 200510034722 CN 200510034722 A CN200510034722 A CN 200510034722A CN 1699701 A CN1699701 A CN 1699701A
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Abstract
This invention discloses a method for the consolidation of boundary slopes, especially the kind of method for consolidating the slope with the combination of wood rod and pile pegs and grouting up. The characteristic of this invention lie in the fact the wood root piles and the technique of grouting up are combined together; i.e., the grouting up technique forms the peg body of the tree root peg and through the grouting up into the tree root holes, the backbone in the form of space network polymer is created in the soil body, thus achieving at the same time the objective of improving the mechanic of the physical properties in the soil body and the properties of hydraulics, thus solving basically the problem of glide reflection of the boundary slope. The construction method of this invention is simple, swift with good result and low cost.
Description
Technical field
The present invention relates to a kind of reinforcement means of slope soil, particularly relate to a kind of method that adopts root pile and grouting technique in conjunction with reinforcing side slope.
Background technology
Often run into problems such as slope soil weakness or slippage in engineering circle, need the side slope soft soil be reinforced, just can make the side slope long-term stability.The common method of the reinforcing side slope soil body has root pile method, anchoring method, and slabstone is piled up method etc.At present, the normal employing of root pile filled method piles such as stone, concrete perfusion, and speed of application is slow, and pile strength is low, can not improve the hydraulic performance of the soil body, and consolidation effect is poor.The anchoring method exists difficulty of construction big, and equipment complexity, engineering cost are quite high, can not improve the shortcomings such as hydraulic performance of the soil body.The slabstone method of piling up is that the effect that a kind of straightforward procedure of only the side slope soil body surface being protected is worked as the soft soil reinforcing can not prevent the invasion of underground water to the soil body.Said method all can not improve the physical and mechanical property and the hydraulic performance of the soil body simultaneously, and consolidation effect has certain limitation.
Summary of the invention
The technical problem to be solved in the present invention is to overcome the deficiencies in the prior art, providing a kind of organically combines root pile and grouting technique, form the root pile pile body by grouting method, simultaneously by being in the milk in the root pile hole, in the soil body, form solid netted slurry arteries and veins skeleton, improve the physical and mechanical property and the hydraulic performance of the soil body simultaneously, thereby thoroughly solved the Slope Sliding problem.
For solving the problems of the technologies described above, technical scheme of the present invention is: a kind of method for reinforcing side slope is characterized in that this method may further comprise the steps:
The first step: determine the soil stabilization scope;
Second step: arrange root pile group and root pile hole site, every group of root pile is made up of many single piles;
The 3rd step: make the root pile hole;
The 4th step: carry out the root pile pile, in the stake hole, place reinforcing bar or the reinforcing cage of length greater than the stake hole depth, put into grout pipe simultaneously, root pile pile slurry material is filled in the root pile hole, the slurry material is emitted on evenly with grouting equipment, glow the aperture until pure pile slurry material, grouting is continued in the shutoff aperture then, and grout pipe is pulled out in pressurize after arriving certain grouting pressure after the release, and mend slurry, make in the hole slurry material full.
The 5th step: use with quadrat method and pour into other each holes;
The 6th step: natural curing 12～24 hours;
The 7th step: each reinforcing bar of every group of root pile or reinforcing cage be welded and fused forms the tree root pile crown;
The 8th step: concreting or steel concrete are wrapped in the tree root pile crown in the concrete, or build up beam with concrete casting the tree root pile crown is fused.
Wherein the single pile diameter described in second step is 40～200 millimeters, be distributed in diameter and be in 30～100 millimeters the circle, with the ground angle be 45～90 °, stake is long 3～20 meters.
Root pile pile and soil body grouting can be finished simultaneously in the 4th step.The described one-tenth pile material amount of attaching most importance to is than 0.25～0.5: 1: 0.05～0.2 water, cement and additive, additive can be selected one or more composite of high efficiency water reducing agent, early strength admixture and various water soluble polymer emulsions for use.Grouting pressure described in this step is 1.5 MPas, 3～15 minutes dwell times.
Especially, in the 4th step,, in the stake hole, add sleeve pipe if there is necking down in a stake hole or the hole phenomenon of collapsing, and sleeve pipe is following to producing necking down or collapsing below the soil depth of hole.
Beneficial effect of the present invention is: implement the present invention and only need simple device, form solid netted slurry arteries and veins skeleton by grouting method in the soil body, improve the physical and mechanical property of the soil body and the slippage problem that hydraulic performance fundamentally solves slope soil simultaneously.This method speed is fast, effective, expense is low, has the excellent popularization using value.
The specific embodiment
Determine to need the soil mass consolidation scope according to on-the-spot needs earlier, arrange root pile group and root pile hole site then.3～10 meters of root pile group array pitch, 3～5 meters of line-spacings.Directly utilize the grouting of root pile hole.Every group of root pile is made up of 3～8 single piles, is distributed in diameter and is in 30～100 millimeters the circle, and the single pile diameter is 40～200 millimeters, with the ground angle be 45～90 °, stake is long 3～20 meters.Mid-reinforcing bar of every pile or reinforcing cage, reinforcing bar or reinforcing cage should be than long 30～50 centimetres of pile bodies.Root pile is used into the pile material amount of attaching most importance to always than 0.25～0.5: 1: 0.05～0.4 water, cement and additive, additive can be selected one or more composite of cement admixture such as high efficiency water reducing agent, early strength admixture and various water soluble polymer emulsions for use.Earlier the soil body is in the milk.A stake hole of optional one group of root pile group, a cleaning stake hole, and observe whether necking down is arranged or the hole phenomenon of collapsing, if any, answer setting of casing, and with sleeve pipe down below the soil depth in the generation necking down or the hole of collapsing.In the stake hole, place reinforcing bar or reinforcing cage, put into grout pipe simultaneously, the center line of reinforcing bar or reinforcing cage with the stake centerline hole overlap substantially, grout pipe and reinforcing bar or reinforcing cage are put into a bottom, hole, with grouting equipment root pile pile slurry material is filled in the root pile hole, the slurry material is emitted on evenly, glow the aperture until pure pile slurry material.Grouting is continued in the shutoff aperture then, grouting pressure 0.5～1.5 MPa, and when grouting pressure reached 1.5 MPas and pressurize 3～15 minutes, common 5～10 minutes, pull out grout pipe after the release, and mend slurry, make in the hole slurry material full.With pour into other each holes with quadrat method.After having irritated the whole stake of selected stake group hole, maintenance 12～24 hours, the reinforcing bar that with diameter is 6～8 millimeters welds each reinforcing bar or the reinforcing cage of every group of root pile, form the tree root pile crown, and build the concrete or the steel concrete of C25 or above strength grade, the tree root pile crown is wrapped in the concrete.Tree root pile crown concrete specification is 0.3 * 0.3 * 0.3 meter or bigger specification, can be that the concrete casting of 0.3 meter * 0.3 meter or above specification builds up beam and fuses with sectional area with each tree root pile crown also.
Claims (6)
1. a method for reinforcing side slope improves soil body physical and mechanical property and hydraulic performance simultaneously, and soft soil is well reinforced, and makes it have waterproof ability, it is characterized in that this method may further comprise the steps:
The first step: need to determine the soil mass consolidation position;
Second step: arrange root pile group and root pile hole, every group of root pile is made up of many single piles;
The 3rd step: make the root pile hole;
The 4th step: carry out the root pile pile, in the stake hole, place reinforcing bar or the reinforcing cage of length greater than the stake hole depth, put into grout pipe simultaneously, root pile pile slurry material is filled in the root pile hole, the slurry material is emitted on evenly with grouting equipment, glow the aperture until pure pile slurry material, grouting is continued in the shutoff aperture then, and grout pipe is pulled out in pressurize after arriving certain grouting pressure after the release, and mend slurry, make in the hole slurry material full;
The 5th step: use with quadrat method and pour into other each holes;
The 6th step: natural curing 12～24 hours;
The 7th step: each reinforcing bar of every group of root pile or reinforcing cage be welded and fused forms the tree root pile crown;
The 8th step: concreting or steel concrete are wrapped in the tree root pile crown in the concrete, or build up beam with concrete casting the tree root pile crown is fused.
2. method for reinforcing side slope according to claim 1 is characterized in that: the single pile diameter described in second step is 40～200 millimeters, be distributed in diameter and be in 30～100 millimeters the circle, with the ground angle be 45～90 °, stake is long 3～20 meters.
3. method for reinforcing side slope according to claim 1 is characterized in that: root pile pile and soil body grouting are finished simultaneously in the 4th step.
4. method for reinforcing side slope according to claim 3, it is characterized in that: the one-tenth pile material amount of attaching most importance to described in the 4th step is than 0.25～0.5: 1: 0.05～0.4 water, cement and additive, additive can be selected one or more composite of high efficiency water reducing agent, early strength admixture and various water soluble polymer emulsions for use.
5. method for reinforcing side slope according to claim 4 is characterized in that: the grouting pressure described in the 4th step is 1.5 MPas, 3～15 minutes dwell times.
6. according to each described method for reinforcing side slope of claim 1 to 5, it is characterized in that: in the stake hole, sleeve pipe is set in the 4th step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200510034722XA CN100340723C (en) | 2005-05-23 | 2005-05-23 | Method for slope reinforcement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200510034722XA CN100340723C (en) | 2005-05-23 | 2005-05-23 | Method for slope reinforcement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1699701A true CN1699701A (en) | 2005-11-23 |
| CN100340723C CN100340723C (en) | 2007-10-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CNB200510034722XA Expired - Fee Related CN100340723C (en) | 2005-05-23 | 2005-05-23 | Method for slope reinforcement |
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| CN (1) | CN100340723C (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100503988C (en) * | 2006-03-09 | 2009-06-24 | 中国科学院水利部成都山地灾害与环境研究所 | Slide sand-slope deep sand-fixation method |
| CN104404949A (en) * | 2014-10-20 | 2015-03-11 | 国家电网公司 | Root-shaped filling pile |
| CN104947694A (en) * | 2015-05-18 | 2015-09-30 | 兰泽民 | Earth slope grouting reinforcement construction method |
| CN105297747A (en) * | 2015-11-03 | 2016-02-03 | 三峡大学 | Slope strengthening method and greening and strengthening framework thereof |
| CN105484274A (en) * | 2015-12-14 | 2016-04-13 | 中南勘察设计院（湖北）有限责任公司 | Method for treating shallow landslide by using high-pressure rotary jet grouting piles and bunching type micro-steel pipe piles in combined manner |
| CN106436725A (en) * | 2016-11-11 | 2017-02-22 | 合肥工业大学 | Construction method of road cutting stereoscopic protection structure achieving high polymer grouting reinforcement and water prevention |
| CN112411286A (en) * | 2020-11-09 | 2021-02-26 | 安徽省新路建设工程集团有限责任公司 | Active highway embankment grouting reinforcement structure and construction method |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02304119A (en) * | 1989-05-19 | 1990-12-17 | Taisei Corp | Stabilizing construction method for slope |
| CN1074001A (en) * | 1992-10-27 | 1993-07-07 | 中国建筑西南勘察院 | The technological method for processing of borehole pouring mortar pile |
| JP2530565B2 (en) * | 1993-07-16 | 1996-09-04 | 矢作建設工業株式会社 | Reinforced earthwork method such as cut slope and concrete precast plate used for it |
| CN1043263C (en) * | 1997-05-15 | 1999-05-05 | 李宪奎 | Construction method for building foundation pit stope support |
| GB2373795A (en) * | 2001-03-27 | 2002-10-02 | Keller Ltd | Slope stabilisation using piling |
| KR200290351Y1 (en) * | 2002-06-22 | 2002-09-27 | 주식회사 도담엔지니어링 | A packer apparatus for pressure type soil nailing |
-
2005
- 2005-05-23 CN CNB200510034722XA patent/CN100340723C/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100503988C (en) * | 2006-03-09 | 2009-06-24 | 中国科学院水利部成都山地灾害与环境研究所 | Slide sand-slope deep sand-fixation method |
| CN104404949A (en) * | 2014-10-20 | 2015-03-11 | 国家电网公司 | Root-shaped filling pile |
| CN104947694A (en) * | 2015-05-18 | 2015-09-30 | 兰泽民 | Earth slope grouting reinforcement construction method |
| CN105297747A (en) * | 2015-11-03 | 2016-02-03 | 三峡大学 | Slope strengthening method and greening and strengthening framework thereof |
| CN105484274A (en) * | 2015-12-14 | 2016-04-13 | 中南勘察设计院（湖北）有限责任公司 | Method for treating shallow landslide by using high-pressure rotary jet grouting piles and bunching type micro-steel pipe piles in combined manner |
| CN105484274B (en) * | 2015-12-14 | 2018-06-19 | 中南勘察设计院（湖北）有限责任公司 | The shallow failure administering method that high-pressure rotary jet grouting pile is combined with cluster type miniature steel pipe pile |
| CN106436725A (en) * | 2016-11-11 | 2017-02-22 | 合肥工业大学 | Construction method of road cutting stereoscopic protection structure achieving high polymer grouting reinforcement and water prevention |
| CN112411286A (en) * | 2020-11-09 | 2021-02-26 | 安徽省新路建设工程集团有限责任公司 | Active highway embankment grouting reinforcement structure and construction method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100340723C (en) | 2007-10-03 |
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