CN1331366A - High-pressure grouting technique for stiffening slope of anchor cable (rod) system - Google Patents
High-pressure grouting technique for stiffening slope of anchor cable (rod) system Download PDFInfo
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- CN1331366A CN1331366A CN 00113069 CN00113069A CN1331366A CN 1331366 A CN1331366 A CN 1331366A CN 00113069 CN00113069 CN 00113069 CN 00113069 A CN00113069 A CN 00113069A CN 1331366 A CN1331366 A CN 1331366A
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- anchor cable
- casting
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Abstract
A technology for stiffening the slope by high-pressure grouting anchor system includes drilling hole, making anchor cable (or rod), putting the anchor cable or rod in the hole, grouting, tension and locking prestress. Its advantages are high effect and safety.
Description
The present invention relates to the geotechnical engineering technical field, the technology of particularly a kind of employing high-pressure slip-casting anchor cable (bar) pattern rock reinforcement side slope.
Side slope or landslide training works use prestress anchorage cable (bar) major defect to be at present: use anchor cable that the generation of failure conditions is often arranged in pourable medium side slope or landslide, cause slope failure, also have and adopt minute-pressure power slip casting, but only make anchoring section fixed, so that enough anchored force to be provided, to the geotechnical body around the anchor cable, there is not tangible consolidation effect, and also be that mud jacking technology and anchor cable (bar) technology are independently used, separate with anchor cable (bar) hole in the mud jacking hole, side slope or landslide stability are poor, and safety is low, and construction investment is big.
The objective of the invention is to be intended to overcome above-mentioned shortcoming, the technology on a kind of employing high-pressure slip-casting anchor cable (bar) pattern rock reinforcement side slope or landslide is provided, this technology combines high-pressure slip-casting with anchor cable (bar), can overcome the destabilizing factor on side slope or landslide, more can adapt to the compatibility of deformation of geotechnical body, suppress the rheological effect of slope ground body, reduce the quantity that anchor cable (bar) uses, improve safety, reduced construction investment.
The object of the present invention is achieved like this:
The present invention includes boring, system anchor cable (bar), following anchor cable (bar), slip casting, stretch-draw, prestressing force locking is characterized in that: high-pressure slip-casting is adopted in slip casting, and slurries with added solid by the formation of the geotechnical body around the anchor hole after infiltration, compression, splitting slurries.
The present invention adopts high-pressure pump from the slip casting of anchor hole mesohigh.
Grouting pressure of the present invention is at least 0.5MPa.
Slurries of the present invention comprise cement, and chemical grout etc. are according to different geological conditionss, select different slurries for use, take different high voltage control, implement slip casting.
The present invention ends the slurry condition: grouting pressure is stable, and does not advance slurry, and the grouting pressure stationary value is at least 0.5MPa.
The present invention combines high-pressure slip-casting with anchor cable (bar), utilize anchor hole to implement high-pressure slip-casting, make anchoring section, slide plane, geotechnical body in the free section zone forms the new combination with higher mechanical strength, this combination and anchor cable (bar) are formed prestress anchorage cable (bar) ground complex jointly, overcome the destabilizing factor on side slope or landslide jointly, pass through high-pressure slip-casting, formation with anchor cable (bar) be central axis carry out the transition to the grow degree cylinder of original state geotechnical body gradually along the radial direction mechanical strength, more can adapt to the compatibility of deformation of geotechnical body, the rheological effect that has also suppressed the slope ground body, and high-pressure slip-casting and anchor cable (bar) cooperatively interact in management, reaching the purpose of coordinating reinforcing side slope is because on the one hand because high-pressure slip-casting, potential slide plane adhesion stress of side slope and angle of internal friction are increased, reduced Thrust of Landslide, potential slide plane behind anchor cable (bar) the pre-stressed compression mud jacking on the other hand, adhesion stress and angle of internal friction on this face are further increased, from and further reduced Thrust of Landslide, high-pressure slip-casting also makes anchor cable (bar) quantity reduce; Simultaneously, be subjected to finger pressure on top, landslide, limit, high-pressure slip-casting has increased the tensile strength of geotechnical body, and prestress anchorage cable (bar) has been offset the tensile stress in this district, nip is answered at middle part, (cunning) slope on the limit, high-pressure slip-casting has increased the compressive strength of geotechnical body, and prestress anchorage cable (bar) provides the lateral restraint in this district, increased compressive strength indirectly, the district is cut in (cunning) sloping bottom on the limit, and high-pressure slip-casting has increased the shear strength of geotechnical body, and prestress anchorage cable (bar) provides the lateral restraint in this district, increased shear strength indirectly, adjust the direction of anchor cable (bar), offset this district's part shear stress, and high-pressure slip-casting makes the flowing water passage sealing in side slope (landslide) body, reduced the weakening effect of water, improved the stability on side slope (landslide) side slope (landslide) geotechnical body intensity.
The present invention has improved the safety and the stability of side slope, has reduced construction investment, has great economic worth and social benefit.
Provide accompanying drawing of the present invention below:
Fig. 1 plane structure schematic diagram of facing of the present invention
Fig. 2 top plan view structural representation of the present invention
Fig. 3 anchor cable of the present invention (bar) is reinforced the sloping schematic diagram in limit (cunning)
Directly face the plane structure schematic diagram in Fig. 4 prior art by slip casting
Below in conjunction with drawings and Examples, the present invention is described in further detail.
Wherein, anchor cable (bar) 1, anchor hole are 2, and ground 3, slurries add solid 4, and the slurries solidifying body is 5, and slope, limit (cunning) is 6.
The present invention includes boring, system anchor cable (bar), following anchor cable (bar), slip casting, stretch-draw, prestressing force locking is characterized in that: high-pressure slip-casting is adopted in slip casting, and slurries with added solid 4 by the 3 formation slurries of the geotechnical body around the anchor hole after infiltration, compression, the splitting 2.
The present invention adopts high-pressure pump from anchor hole 2 mesohigh slip castings, and pressure is at least 0.5MPa.
Slurries of the present invention comprise cement, and chemical grout etc. are according to different geological conditionss, select different slurries for use, take different high voltage control, implement slip casting.
The present invention ends the slurry condition: grouting pressure is stable, and does not advance slurry, and the grouting pressure stationary value is at least 0.5MPa.
The present invention has improved the safety and the stability of slope and land slide, has reduced engineering cost and investment, the practical value height.
Claims (4)
1, high-pressure slip-casting anchor cable (bar) pattern rock reinforcement side slope technology, comprise boring, system anchor cable (bar), following anchor cable (bar), slip casting, stretch-draw, the prestressing force locking, it is characterized in that: high-pressure slip-casting is adopted in slip casting, and slurries add solid (4) with anchor hole (2) geotechnical body (3) the formation slurries on every side that permeated, compress, split behind the row.
2, high-pressure slip-casting anchor cable according to claim 1 (bar) pattern rock reinforcement side slope technology is characterized in that: with high-pressure pump from anchor hole (2) mesohigh slip casting.
3, high-pressure slip-casting anchor cable according to claim 1 (bar) pattern rock reinforcement side slope technology is characterized in that: grouting pressure is stable, and does not advance slurry, and the grouting pressure stationary value is at least 0.5Mpa.
4, high-pressure slip-casting anchor cable according to claim 1 and 2 (bar) pattern rock reinforcement side slope technology, it is characterized in that: grouting pressure is at least 0.5MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00113069 CN1331366A (en) | 2000-06-28 | 2000-06-28 | High-pressure grouting technique for stiffening slope of anchor cable (rod) system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00113069 CN1331366A (en) | 2000-06-28 | 2000-06-28 | High-pressure grouting technique for stiffening slope of anchor cable (rod) system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1331366A true CN1331366A (en) | 2002-01-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00113069 Pending CN1331366A (en) | 2000-06-28 | 2000-06-28 | High-pressure grouting technique for stiffening slope of anchor cable (rod) system |
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| CN (1) | CN1331366A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100460604C (en) * | 2007-03-14 | 2009-02-11 | 东南大学 | Crack-seam-free seepage-proof stable sweeled ground excavation dyke slope construction method |
| CN101949295A (en) * | 2010-09-10 | 2011-01-19 | 中国恩菲工程技术有限公司 | Method for reinforcing laneway |
| CN102002956A (en) * | 2010-12-07 | 2011-04-06 | 武汉大学 | Multi-level fully-closed reinforcement technology of exposed fault zone of excavated side slope |
| CN102392443A (en) * | 2011-10-19 | 2012-03-28 | 山东科技大学 | Construction technique for high-slope pressure-dispersed pre-stressed anchor cable |
| CN102562105A (en) * | 2012-03-08 | 2012-07-11 | 山东黄金矿业股份有限公司新城金矿 | Support construction method for long anchor cable for underground mine |
| CN104452783A (en) * | 2014-11-14 | 2015-03-25 | 北京科技大学 | Layered repeated high-pressure grouting prestress anchoring technology for high and steep slope of strip mine |
-
2000
- 2000-06-28 CN CN 00113069 patent/CN1331366A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100460604C (en) * | 2007-03-14 | 2009-02-11 | 东南大学 | Crack-seam-free seepage-proof stable sweeled ground excavation dyke slope construction method |
| CN101949295A (en) * | 2010-09-10 | 2011-01-19 | 中国恩菲工程技术有限公司 | Method for reinforcing laneway |
| CN102002956A (en) * | 2010-12-07 | 2011-04-06 | 武汉大学 | Multi-level fully-closed reinforcement technology of exposed fault zone of excavated side slope |
| CN102392443A (en) * | 2011-10-19 | 2012-03-28 | 山东科技大学 | Construction technique for high-slope pressure-dispersed pre-stressed anchor cable |
| CN102562105A (en) * | 2012-03-08 | 2012-07-11 | 山东黄金矿业股份有限公司新城金矿 | Support construction method for long anchor cable for underground mine |
| CN104452783A (en) * | 2014-11-14 | 2015-03-25 | 北京科技大学 | Layered repeated high-pressure grouting prestress anchoring technology for high and steep slope of strip mine |
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