CN108265712B - Underwater ground anchor structure with wear-resistant sleeve - Google Patents
Underwater ground anchor structure with wear-resistant sleeve Download PDFInfo
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- CN108265712B CN108265712B CN201810203695.1A CN201810203695A CN108265712B CN 108265712 B CN108265712 B CN 108265712B CN 201810203695 A CN201810203695 A CN 201810203695A CN 108265712 B CN108265712 B CN 108265712B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/74—Means for anchoring structural elements or bulkheads
- E02D5/80—Ground anchors
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
- E02D15/06—Placing concrete under water
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/52—Submerged foundations, i.e. submerged in open water
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- Piles And Underground Anchors (AREA)
Abstract
The invention discloses an underwater ground anchor structure with an anti-abrasion sleeve, which comprises a cable body and a cable joint, wherein the cable body is arranged in an anchor hole formed by underwater drilling, the cable body comprises an anchor section, a transition section and a free section which are sequentially arranged, the anchor hole passes through a strong weathering lower limit line, the anchor section and the transition section are positioned in the anchor hole below the strong weathering lower limit line, the part of the cable body above the strong weathering lower limit line is the free section, the free section extends out of an underwater ground line and is connected with the cable joint, the anchor section comprises a plurality of dispersed single-stranded wires, the single-stranded wires are pressed into a bundle of integral steel stranded wires at the positions of the transition section and the free section, cement slurry for fixing the cable body is poured into the anchor hole, and the anti-abrasion sleeve is sleeved outside the position of the free section at the orifice of the anchor hole. The underwater ground anchor structure has the characteristics of capability of bearing large variable oblique tension, adaptability to weak stratum conditions, good corrosion resistance, rock abrasion resistance, less required investment in construction equipment, quick construction, low cost, investment saving and the like.
Description
Technical Field
The invention relates to an underwater ground anchor structure with an anti-wear sleeve, and belongs to the technical field of water conservancy and hydropower. The invention relates to an underwater anchoring structure for a water-proof and water-retaining curtain wall structure of a hydropower station reservoir.
Background
After the hydropower station high-dam large warehouse is built, the water temperature space-time distribution of the water area in the warehouse area and the river reach downstream of the dam can be greatly influenced. Particularly, the water temperature of the reservoir outflow water is lower than that of a natural river channel due to the spring and summer intersection, and the low-temperature water discharged from the reservoir outflow water has adverse effects on the propagation of downstream fishes and other aquatic organisms and the like. In order to improve the water discharge temperature of the reservoir of the built power station, certain engineering measures are required to be adopted to ensure the normal living environment of the downstream aquatic organisms. In recent years, a flexible water retaining curtain wall structure with simple structure and relatively low investment is being proposed for treating the problem of low-temperature water leakage from a high-dam reservoir. A low-temperature water treatment water-proof curtain wall is a flexible water-proof curtain wall with proper water retaining height arranged in a transverse river direction at a certain position in front of a dam, low-temperature water at the lower layer is blocked by the curtain wall, and high-temperature water at the surface layer of an overflow reaches the purpose of improving the low-temperature water-draining temperature.
The water-proof curtain wall bears water pressure load, and the hydrostatic pressure caused by dynamic water pressure and temperature is mainly transmitted to the longitudinal inhaul cable through the flexible curtain wall, and the longitudinal inhaul cable transmits the load to the upper cable tower structure and the bottom ground anchor structure. Wherein the bottom of the reservoir earth anchor structure upper end is used for hanging the vertical cable of water proof curtain wall, bears the pulling force of the vertical cable of curtain, and its atress and structural feature have:
1) The pulling force of the longitudinal inhaul cable of the curtain wall on the ground anchor structure is oblique pulling force. In the running and using process of the water-proof curtain wall structure, a certain included angle exists between the lower end of the longitudinal stay cable of the curtain wall and the vertical direction, and the tensile direction of the longitudinal stay cable of the curtain wall to the underwater ground anchor structure is obliquely upward.
2) The pulling force of the longitudinal inhaul cable of the curtain wall on the ground anchor structure is a variable force. The water-proof curtain wall automatically rises and falls along with the change of the reservoir water level from the normal water storage level to the dead water level, and the curtain wall and the longitudinal inhaul cable adapt to the change of the water level to adjust the form. The water cross section, the water flow speed and the pressure distribution of different running water levels are different, so that the body forms of the curtain wall and the longitudinal inhaul cable are different, and the magnitude and the direction of the pulling force transmitted to the underwater ground anchor structure are also different.
3) The tension magnitude of the longitudinal inhaul cable of the curtain wall to the ground anchor structure is large. According to estimation, when the water retaining height of the water-proof curtain wall is about 140m and the longitudinal inhaul cables are arranged at a distance of 10m along the horizontal river, the maximum value of the resultant force transmitted from the longitudinal inhaul cables of the water-proof curtain wall to the ground anchor structure is about 800kN, and after the resultant force is decomposed into vertical force and horizontal force, the maximum value of the vertical force and the horizontal force can reach 500-600kN which is far greater than the tensile force value born by a common ground anchor structure, in particular horizontal tensile force.
4) The upper end of the ground anchor structure is required to be provided with a connecting component for hanging a longitudinal inhaul cable of the water-proof curtain wall.
The existing ground anchor (anchoring) structure can not meet the requirements of the underwater ground anchor structure of the water-proof curtain wall:
1) Rock anchor piles are a common ground anchor structure, and are of a type in which anchor bars and mortar (or concrete) are poured into rock drill holes and are bonded with the rock into a whole, and a certain tensile force is born by the embedding effect of a rock-soil body on the pile body. The method is limited by deepwater underwater construction conditions, the drilling diameter of the rock anchor pile of the waterproof curtain wall is generally smaller than 150mm (when the drilling diameter is larger than 150mm, the size, dead weight and the like of a construction steel pile casing are increased, the underwater construction and operation difficulty are greatly increased), the horizontal pulling force provided by the rock anchor pile is limited under the limiting condition of the drilling diameter, and particularly when the anchor pile passes through a weak and loose rock soil layer, the rock anchor pile is extremely easy to break, destroy and fail due to insufficient side limiting resistance of the rock soil body, and the method cannot adapt to complex operation conditions that the pulling force of a longitudinal cable of the curtain wall to a ground anchor structure is changed in size and direction.
2) The traditional prestress anchor cable structure can bear large axial tension, but cannot bear large horizontal force, and cannot adapt to complex working conditions of curtain wall operation, and the anchor cable anchor pier is poured under deep water, so that the construction of the anchor cable anchor pier under deep water is difficult, and the arrangement of a connecting member with a longitudinal inhaul cable of the curtain wall at the upper end of the anchor cable anchor pier is difficult.
Disclosure of Invention
In order to overcome the problems in the prior art, the invention provides an underwater ground anchor structure bearing large variable oblique tension, which has the following specific technical scheme.
The utility model provides an anchor structure under water with abrasionproof cover, its includes cable body and cable joint, the cable body sets up in the anchor eye that drilling formed under water, its characterized in that: the cable body comprises an anchoring section, a transition section and a free section which are sequentially arranged, the anchor hole passes through a strong weathered lower limit line, the anchoring section and the transition section are positioned in the anchor hole below the strong weathered lower limit line, the part of the cable body above the strong weathered lower limit line is the free section, the free section extends out of an underwater ground line and is connected with the cable section, the anchoring section comprises a plurality of dispersed single-beam steel strands, the single-beam steel strands are pressed into a whole steel strand at the positions of the transition section and the free section, cement slurry for fixing the cable body is poured into the anchor hole, the outer part of the free section, which is positioned at the orifice of the anchor hole, is sleeved with an anti-abrasion sleeve, the above-ground sleeve comprises an above-ground part and an in-hole part, the above-ground part is positioned above the underwater ground line, and the in-hole part is positioned in the anchor hole.
Therefore, the steel strands of the anchoring section are dispersed and anchored when cement slurry is poured, so that the bond force of cement slurry to the cable body is ensured, the free section above the exposed underwater ground line and the cable joint connected with the free section can swing freely above the underwater ground line, the variable tension of the longitudinal cable of the curtain wall to the ground anchor structure is adapted, the free section is protected by the anti-abrasion sleeve during swinging, and the elastic cushion layer is formed between the cable body and the hole wall and between the cable body and the ground rock, so that the abrasion and cutting of the underwater ground anchor structure are effectively prevented.
Further, the overground part and the hole inner part are coaxial cylinders, the outer diameter of the overground part is larger than the aperture of the anchor hole, and the aperture is larger than the outer diameter of the hole inner part. The anti-abrasion sleeve is favorable for being reliably sleeved at the orifice position of the anchor hole of the free section, and the protection effect of the anti-abrasion sleeve on the ground anchor structure is stably exerted.
Further, the single stranded wire is an epoxy spraying unbonded stranded wire. Has better corrosion and rust prevention functions for groundwater environment.
Further, in order to ensure that a plurality of single stranded steel strands of the anchoring section are scattered and anchored when cement slurry is poured, the bond strength of the cement slurry to the steel strands is ensured. The isolation frames are arranged on the single-beam steel stranded wires at intervals, lead wires for bundling a plurality of the single-beam steel stranded wires are arranged between two adjacent isolation frames, and the distance between the two adjacent single-beam steel stranded wires is smaller than the position of the isolation frames at the position of the lead wires. Therefore, on the basis of ensuring that a plurality of single-stranded steel strands are scattered and anchored when cement paste is poured, the single-stranded steel strands are in a bending state at an anchoring section, the length of the single-stranded steel strands at the anchoring section is increased, and the bond strength of cement paste to the steel strands is improved. Preferably, the length of the anchoring section is 6-9m, and a separation frame is arranged on the single-beam steel twisted wire at intervals of 1.5 m.
Further, a protective sleeve is arranged on the outer surface of the integral steel strand of the free section. The whole steel strand wires of protection free section are favorable to protecting free section are not influenced by the underwater environment to the setting of protective sheath, the whole steel strand wires of changeover portion do not set up the protective sheath in order to improve the grip strength of grout to the whole steel strand wires of changeover portion. Preferably, the transition section length is 1m. Preferably, the protective sheath is made of high density polyethylene.
Further, the anti-wear sleeve is provided with an anti-wear sleeve steel strand reserved hole, an anti-wear sleeve grouting pipe reserved hole and an exhaust hole, the anti-wear sleeve steel strand reserved hole is used for penetrating the whole steel strand, the anti-wear sleeve grouting pipe reserved hole is used for penetrating the grouting pipe, and the exhaust hole is used for exhausting air during grouting cement slurry. The anti-abrasion sleeve is used for preventing the whole steel strand of the free section from rubbing and cutting the rock. Preferably, the length of the wear-resistant sleeve is 4.5m, the wear-resistant sleeve is exposed above the underwater ground line by 0.5m, and the wear-resistant sleeve is embedded in the anchor hole by 4.0m. Preferably, the wear-resistant sleeve is made of wear-resistant rubber or high-elasticity wear-resistant silica gel. The upper end of the free section is in a tensioning state after being subjected to the tension transmitted by the longitudinal inhaul cable of the curtain wall, and can freely and elastically stretch and retract in the protective sleeve according to the tension.
Further, the cable joint is formed by integrally pressing an integral steel strand at the end part of the free section through alloy steel, a cable reserved hole, a cable reserved groove and a cable joint grouting pipe reserved groove are formed in the cable joint, the cable reserved hole penetrates through the cable joint and is perpendicular to the axial direction of the integral steel strand, the cable reserved groove is provided with two cable joint grouting pipes and is symmetrical with the central line of the cable joint, and the cable joint grouting pipe reserved groove is used for accommodating the grouting pipes. When the underwater ground anchor structure is used for fixing the waterproof curtain wall, the inhaul cable of the waterproof curtain wall penetrates through the inhaul cable reserved holes and is contained in the two inhaul cable reserved grooves, and the inhaul cable is fixed firmly and reliably.
Further, a plurality of spacer steel strand preformed holes, two spacer grouting pipe preformed holes and spacer back slurry preformed channels are arranged on the spacer, the spacer steel strand preformed holes are used for penetrating the single-beam steel strand, the spacer grouting pipe preformed holes are used for penetrating the grouting pipe, and the spacer back slurry preformed channels are used for flowing cement slurry from the lower part of the spacer to the upper part of the spacer during grouting. Preferably, the spacer back-slurry reserving channel comprises a spacer back-slurry reserving hole and/or a spacer back-slurry reserving groove. Preferably, the spacer is made of PE plate.
The underwater ground anchor structure has the characteristics of capability of bearing large variable oblique tension, adaptability to weak stratum conditions, good corrosion resistance, less required investment and construction equipment, quick construction, low manufacturing cost, investment saving and the like.
Drawings
FIG. 1 is a cross-sectional view of an underwater ground anchor structure of the present invention;
FIG. 2 is a schematic view of the anchor segment spacer of FIG. 1;
FIG. 3 is a schematic view of the wear sleeve of FIG. 1;
fig. 4 is a top view of the cable joint of fig. 1.
Fig. 5 is a cross-sectional view of an underwater ground anchor structure wear sleeve.
In the figure: 1-guide cap, 2-isolation frame, 3-cement paste, 4-lead wire, 5-anchor hole, 6-transition section, 7-protective sleeve, 8-wear-proof sleeve, 81-overground part, 82-hole part, 9-grouting pipe, 10-cable joint, 11-cable preformed hole, 12-single beam steel strand, 13-free section, 14-strong wind lower limit line, 15-underwater ground line, 16-isolation frame steel strand preformed hole, 17-isolation frame grouting pipe preformed hole, 18-isolation frame back slurry preformed hole, 19-isolation frame back slurry preformed groove, 20-wear-proof sleeve steel strand preformed hole, 21-wear-proof sleeve grouting pipe preformed hole, 22-exhaust hole, 23-cable joint grouting pipe preformed hole, 24-cable preformed groove.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings.
Referring to fig. 1-4, an underwater ground anchor structure with an anti-wear sleeve for bearing variable oblique pull load is disclosed, and the embodiment relies on a 1500kN underwater ground anchor structure of a low-temperature water treatment test engineering of a hydropower station. The aperture of the anchor hole 5 of the ground anchor is 145mm, the ground anchor structure comprises a cable body and a cable joint, the cable body is composed of 10 bundles of 7 phi 5 prestress single-bundle steel strands 12, and the cable body is divided into an anchor section, a transition section 6 and a free section 13 from bottom to top. The anchoring section is a scattered single-stranded steel strand, the top end of the single-stranded steel strand 12 is connected with a guide cap 1, the transition section 6 and the free section 13 are a whole steel strand of 10 single-stranded steel strands 12 in an anchoring section scattered state after being integrally pressed, and cement slurry 3 for fixing the cable body is poured into the anchor hole 5. The steel strand at the upper end of the free section extends into the cable joint 11 and is integrally pressed with the cable joint 11, and the connection strength after pressing is larger than the design value of the tensile force of the cable body. The steel strand adopts a prestress steel strand, is an epoxy spraying unbonded steel strand, and has the functions of corrosion prevention and rust prevention of groundwater environment. The anchoring section is 9m long, 10 single-stranded steel strands are in a dispersed state, isolation frames 2 are arranged every 1.5m, lead wires 4 used for bundling a plurality of the single-stranded steel strands are arranged between every two adjacent isolation frames 2, and the distance between the two adjacent single-stranded steel strands is smaller than the position of the isolation frames 2 at the position of the lead wires 4. The length of the transition section is 1m, the transition section is an integral steel strand, and the integral pressed steel strand of the transition section is provided with no protective sleeve. The length of the free section is 9m, the free section is located above the rock mass strong weathering lower limit line 14, the upper end of the free section is exposed to the water surface line 15 by 1m, the free section is an integrally pressed steel strand with a protective sleeve, the upper end of the free section is in a tensioning state after being subjected to the tensile force transmitted by a longitudinal inhaul cable of the curtain wall, and the steel strand can be freely and elastically stretched in the protective sleeve according to the tensile force.
The outside of the free section cable body near the aperture of the anchor hole 5 is sleeved with an anti-abrasion sleeve 8 for preventing friction and cutting of the free section steel strand wires and the rock, the anti-abrasion sleeve 8 comprises an overground part 81 and an in-hole part 82, the overground part is positioned above the underwater ground line, and the in-hole part is positioned in the anchor hole. Preferably, the above-ground part 81 is 0.5m long and the in-hole part 82 is 4.0m long. Referring to fig. 5, to further improve the stability of the wear sleeve 8, the above-ground portion 81 and the in-hole portion 82 are coaxial cylinders, and the above-ground portion 81 has an outer diameter larger than the bore diameter of the anchor hole 5, and the bore diameter is larger than the outer diameter of the in-hole portion 82, such as: the outer diameter of the aerial part 81 is 5-10mm larger than the aperture of the anchor eye 5. The in-hole portion 82 is embedded in the anchor hole 5 and has an outer diameter smaller than the aperture 5-10mm of the anchor hole 5. The wear-resistant sleeve 8 is made of wear-resistant rubber or high-elasticity wear-resistant silica gel.
The anti-wear sleeve 8 is provided with an anti-wear sleeve steel strand reserved hole 20, an anti-wear sleeve grouting pipe reserved hole 21 and an exhaust hole 22, the anti-wear sleeve steel strand reserved hole 20 is used for penetrating the whole steel strand, the diameter of the anti-wear sleeve steel strand reserved hole 20 is larger than that of the whole steel strand of the free section of the ground anchor by 2-3mm, the anti-wear sleeve grouting pipe reserved hole 21 is used for penetrating a grouting pipe, the anti-wear sleeve grouting pipe reserved hole 21 is larger than that of the grouting pipe by 5-8mm, the exhaust hole 22 is used for exhausting air when grouting cement slurry, the anti-wear sleeve grouting pipe reserved hole 21 is preferably provided with two grouting pipes 9, and when the ground anchor orifice back slurry is monitored and the design requirement is met, the grouting pipe 9 is slowly pulled out of the ground anchor structure, so that the grouting compactness can be ensured, and the bearing load of the ground anchor structure is improved.
The cable joint 10 is formed by integrally pressing integral steel strands of alloy steel and free section ends, a cable reserved hole 11, a cable reserved groove 24 and a cable joint grouting pipe reserved groove 23 are formed in the cable joint 10, the cable reserved hole 11 penetrates through the cable joint and is perpendicular to the axial direction of the integral steel strands, the cable reserved groove 24 is provided with two cable joint grouting pipes and is symmetrical with the central line of the cable joint, and the cable joint grouting pipe reserved groove 23 is used for accommodating grouting pipes. When the waterproof curtain wall is fixed, the stay rope of the waterproof curtain wall penetrates through the stay rope reserved holes and is contained in the two stay rope reserved grooves.
The isolation frame 2 is provided with a plurality of isolation frame steel strand reserved holes 16, two isolation frame grouting pipe reserved holes 17, an isolation frame back slurry reserved hole 18 and an isolation frame back slurry reserved groove 19, the isolation frame steel strand reserved holes 16 are used for penetrating the single-beam steel strands, the isolation frame grouting pipe reserved holes 17 are used for penetrating grouting pipes, and the isolation frame back slurry reserved holes 18 and the isolation frame back slurry reserved groove 19 are used for enabling cement slurry to flow from the lower part of the isolation frame to the upper part of the isolation frame during grouting. Preferably, the spacer is made of PE plate.
The free section and the cable joint of the ground anchor structure can swing freely above the underwater ground line, the variable tension of the longitudinal cable of the curtain wall to the ground anchor structure is adapted, and the underwater ground anchor structure can bear variable oblique tension load of 1500kN at maximum.
The embodiments of the present invention have been described above with reference to the accompanying drawings, and the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict. For convenience of description, the words "upper" and "lower" in the foregoing description merely denote the same direction as the drawing itself, and do not limit the structure. The present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those of ordinary skill in the art without departing from the spirit of the invention and the scope of the appended claims, which are all within the scope of the invention.
Claims (10)
1. The utility model provides an anchor structure under water with abrasionproof cover, its includes cable body and cable joint, the cable body sets up in the anchor eye that drilling formed under water, its characterized in that:
the cable body comprises an anchoring section, a transition section and a free section which are sequentially arranged, the anchor hole passes through a strong weathered lower limit line, the anchoring section and the transition section are positioned in the anchor hole below the strong weathered lower limit line, the part of the cable body above the strong weathered lower limit line is the free section, the free section extends out of an underwater ground line and is connected with the cable joint, the anchoring section comprises a plurality of dispersed single-stranded wires, the single-stranded wires are pressed into a whole steel strand at the positions of the transition section and the free section, cement paste for fixing the cable body is poured into the anchor hole, an anti-abrasion sleeve is sleeved outside the opening of the free section, the anti-abrasion sleeve comprises an overground part and an in-hole part, the overground part is positioned above the underwater ground line, and the in-hole part is positioned in the anchor hole;
the overground part and the hole inner part are coaxial cylinders, the outer diameter of the overground part is larger than the aperture of the anchor hole, and the aperture is larger than the outer diameter of the hole inner part; and a protective sleeve is arranged on the outer surface of the integral steel strand of the free section.
2. The underwater ground anchor structure with the wear-resistant sleeve according to claim 1, wherein the wear-resistant sleeve is provided with a wear-resistant sleeve steel strand reserved hole, a wear-resistant sleeve grouting pipe reserved hole and an exhaust hole, the wear-resistant sleeve steel strand reserved hole is used for penetrating the integral steel strand, the wear-resistant sleeve grouting pipe reserved hole is used for penetrating a grouting pipe, and the exhaust hole is used for exhausting air when grouting cement slurry.
3. The underwater ground anchor structure with the wear-resistant sleeve according to claim 1, wherein isolation frames are arranged on the single-strand steel strands at intervals, lead wires used for bundling a plurality of the single-strand steel strands are arranged between two adjacent isolation frames, and the distance between the two adjacent single-strand steel strands is smaller than that of the isolation frames at the positions of the lead wires.
4. An underwater ground anchor structure with a wear sleeve as in claim 3, wherein the single strand steel strands are epoxy sprayed unbonded steel strands.
5. The underwater ground anchor structure with the wear-resistant sleeve according to claim 3 or 4, wherein a plurality of spacer steel strand preformed holes, two spacer grouting pipe preformed holes and a spacer back slurry preformed channel are formed in the spacer, the spacer steel strand preformed holes are used for penetrating the single-beam steel strands, the spacer grouting pipe preformed holes are used for penetrating grouting pipes, and the spacer back slurry preformed channel is used for flowing cement slurry from the lower side of the spacer to the upper side of the spacer during grouting.
6. The underwater ground anchor structure with the wear prevention sleeve according to claim 5, wherein the spacer back slurry reserving channel comprises a spacer back slurry reserving hole and/or a spacer back slurry reserving groove.
7. An underwater ground anchor structure with a wear sleeve as in claim 1, wherein the protective sheath is made of high density polyethylene.
8. The underwater ground anchor structure with the wear-resistant sleeve of claim 7, wherein the wear-resistant sleeve is made of wear-resistant rubber or high-elasticity wear-resistant silica gel.
9. The underwater ground anchor structure with the wear-resistant sleeve according to claim 1, wherein the cable joint is formed by integrally pressing an integral steel strand of alloy steel and a free section end, a cable reserved hole, a cable reserved groove and a cable joint grouting pipe reserved groove are formed in the cable joint, the cable reserved hole penetrates through the cable joint and is perpendicular to the axial direction of the integral steel strand, the cable reserved groove is provided with two cable joint grouting pipe reserved grooves and is symmetrical with respect to the central line of the cable joint, and the cable joint grouting pipe reserved groove is used for accommodating grouting pipes.
10. The underwater ground anchor structure with the wear sleeve as in claim 1, wherein the underwater ground anchor structure is used for fixing a cable of a water-insulated curtain wall.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810203695.1A CN108265712B (en) | 2018-03-13 | 2018-03-13 | Underwater ground anchor structure with wear-resistant sleeve |
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| CN201810203695.1A CN108265712B (en) | 2018-03-13 | 2018-03-13 | Underwater ground anchor structure with wear-resistant sleeve |
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| CN108265712B true CN108265712B (en) | 2023-06-20 |
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| CN112647499A (en) * | 2021-01-12 | 2021-04-13 | 中国电建集团中南勘测设计研究院有限公司 | Deepwater ground anchor grouting method |
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| EP1589146A1 (en) * | 2004-04-21 | 2005-10-26 | AVT Anker + Vorspanntechnik AG | Wire bundle anchor |
| JP4127837B2 (en) * | 2005-03-30 | 2008-07-30 | 黒沢建設株式会社 | Ground anchor method and ground anchor structure |
| CN205742181U (en) * | 2016-05-18 | 2016-11-30 | 中国葛洲坝集团三峡建设工程有限公司 | A kind of lowering anchor cable protection device |
| CN106065624B (en) * | 2016-07-12 | 2019-01-29 | 浙江交工集团股份有限公司 | Suitable for passing through the permanent seal cooling prestress anchorage cable and its construction method of broken rock |
| CN207959206U (en) * | 2018-03-13 | 2018-10-12 | 中国电建集团中南勘测设计研究院有限公司 | A kind of underwater ground anchor structure with wearing bush |
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