CN209837019U - Pre-tensioning and post-anchoring type prestressed anti-floating anchor rod construction structure - Google Patents
Pre-tensioning and post-anchoring type prestressed anti-floating anchor rod construction structure Download PDFInfo
- Publication number
- CN209837019U CN209837019U CN201920211847.2U CN201920211847U CN209837019U CN 209837019 U CN209837019 U CN 209837019U CN 201920211847 U CN201920211847 U CN 201920211847U CN 209837019 U CN209837019 U CN 209837019U
- Authority
- CN
- China
- Prior art keywords
- anchor
- construction
- prestressed
- underground structure
- floating
- 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.)
- Active
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/10—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against soil pressure or hydraulic pressure
- E02D31/12—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against soil pressure or hydraulic pressure against upward hydraulic pressure
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The utility model relates to the technical field of prestressed anti-floating anchor rod construction, and discloses a pre-tensioning and post-anchoring type prestressed anti-floating anchor rod construction structure, which comprises a prestressed anchor rod, an anchor pier and an underground structure, wherein the prestressed anchor rod, the anchor pier and the underground structure are arranged on a drill hole; forming a construction groove along the periphery of the drill hole, wherein the construction groove is arranged in a downward sunken manner, pouring reinforced concrete until the construction groove forms an anchor pier, and the underground structure is in up-down anchoring connection with the anchor pier; the lower end of the prestressed anchor rod is anchored into the borehole, and the upper end of the prestressed anchor rod is anchored into the underground structure. The construction of the prestressed anchor rods and the construction of anchor piers are finished by rock-soil construction teams, and the construction of underground structures is finished by general packet construction teams, so that the construction management is facilitated; before the underground structure is constructed, the prestressed anchor rods are tensioned, so that the anchor rods are conveniently tensioned and locked, and the construction steps are simplified; under the cooperation of the prestressed anchor rods and the anchor piers, the anti-floating anchor has enough anti-pulling force, so that the anti-floating anchor generates constraint force on the underground structure, prevents the underground structure from floating upwards and deforming, and further enhances the anti-floating effect.
Description
Technical Field
The patent of the utility model relates to a technical field of prestressing force anti-floating anchor construction particularly, relates to earlier stretch-draw back anchor formula prestressing force anti-floating anchor construction structures.
Background
The anti-floating anchor rod is an anti-floating technology adopted by underground structures to resist water buoyancy, is widely applied at home and abroad, and especially plays an irreplaceable important role increasingly along with the increasing burial depth of underground engineering such as building basements, subways, underground traffic hubs, underground spaces, hydraulic buildings and the like at home in recent years.
Anti-floating anchors are generally permanent structures and are classified into two major categories, namely pre-stressed anchors and fully-bonded anchors (non-pre-stressed anchors).
Adopting a full-bonding anchor rod: the anchor bars are exposed, cement slurry is poured into the drilled holes, and after the slurry is condensed, the anchor bars are wrapped in the holes in the full length and are bonded with the surrounding stratum to generate uplift resistance; then, underground structures such as basement bottom plates and the like are constructed, and anchor heads are anchored into the underground structures; along with the rise of the underground water level, the underground structure starts to bear the water buoyancy and transfers the buoyancy to the anchor rod, the anchor rod is pulled to generate micro deformation, and the anchor rod has uplift resistance when being anchored in the stratum, so that the underground structure is restrained and prevented from floating; along with the continuous rising of the underground water level, the underground structure bears the increasingly larger water buoyancy, the tension and the deformation of the anchor rod are also increasingly larger, and the generated resistance is also increasingly larger; therefore, the floating deformation control effect of the underground structure is poor by adopting the fully-bonded anchor rod.
The method is characterized in that a prestressed anchor rod is adopted and divided into a tension type anchor rod and a pressure type anchor rod, the anchor rod adopts a prestressed anchor rod, the whole length (pressure type) or part (tension type) of the anchor rod is wrapped by an isolation sleeve to be not bonded with slurry to form an anchor rod free section, cement slurry is filled into a drill hole, the whole length anchor rod is wrapped in the slurry after the slurry is condensed and is bonded with a peripheral stratum to generate uplift resistance, the tension type anchor rod is bonded with the exposed part of the anchor rod through the slurry to form a bonding section to transmit stress, and the pressure type anchor rod transmits stress through a bearing body at the tail end of the anchor rod; then, underground structures such as basement bottom plates and the like are constructed, the anchor head penetrates through the underground structures through a reserved sleeve, after the strength of the underground structures meets the design requirement, the anchor head is tensioned and locked with an anchorage device, and the free section of the anchor bar is elastically stretched to generate prestress and is locked on the anchor head; and then the anchor head is sealed and anchored and the underground structure is leveled.
The construction process of the prestressed anchor rod is complex, construction management is inconvenient, a sleeve needs to be arranged when the anchor head penetrates through an underground structure, waterproof measures need to be taken inside and outside the sleeve, and the waterproof difficulty is high.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a stretch-draw back anchor formula prestressing force anti-floating anchor rod construction structures before, aim at solving prior art, ground anchor engineering construction, anti-problem that the effect is not good, the construction is complicated of floating.
The utility model is realized in such a way that the construction structure of the pre-tensioned post-anchored prestressed anti-floating anchor rod comprises a prestressed anchor rod, an anchor pier and an underground structure which are arranged on a drilling hole; forming a construction groove along the periphery of the drill hole, wherein the construction groove is arranged in a downward sunken manner, pouring reinforced concrete until the construction groove forms the anchor pier, and the underground structure is in up-down anchoring connection with the anchor pier; the lower end of the prestressed anchor rod is anchored into the drilling hole, and the upper end of the prestressed anchor rod is anchored into the underground structure
Furthermore, the anchor pier is provided with a plurality of steel bars, the lower ends of the steel bars are embedded into the anchor pier, and the upper ends of the steel bars are embedded into the underground structure.
Further, the steel bars are arranged vertically, and water stop steel plates are arranged on the steel bars and are arranged horizontally; the water stop steel plate is positioned in the underground structure.
Furthermore, the reinforcing steel bars are correspondingly arranged in pairs along two sides of the prestressed anchor rod.
Furthermore, the prestressed anchor rod comprises an anchor head and a rod body, wherein the anchor head is arranged outside the drilled hole, the rod body is arranged in the drilled hole, and the anchor head is tensioned to lock the rod body and then anchored into the underground structure.
Further, the prestressed anchor rod comprises an isolation sleeve which is arranged in the drill hole and surrounds the rod body in a surrounding mode.
Further, the anchor piers are provided with upper end surfaces facing the underground structure, the upper end surfaces of the anchor piers are horizontally arranged, the underground structure is provided with lower end surfaces facing the anchor piers, and the lower end surfaces of the underground structure are horizontally arranged; the upper end face of the anchor pier is attached to the lower end face of the underground structure.
Furthermore, the upper end face of the anchor pier is provided with a waterproof layer, and the lower end face of the underground structure is abutted and attached to the waterproof layer.
Compared with the prior art, the pre-tensioning and post-anchoring type prestressed anti-floating anchor rod construction structure provided by the utility model has the advantages that the prestressed anchor rod construction and the anchor pier construction are completed by rock-soil construction teams, the underground structure construction is completed by general package construction teams, the construction is not interfered with each other, and the construction management is convenient; before the underground structure is constructed, the prestressed anchor rods are tensioned, so that the anchor rods are conveniently tensioned and locked, and the construction steps are simplified; under the cooperation of the prestressed anchor rods and the anchor piers, the anti-floating anchor has enough anti-pulling force, so that the anti-floating anchor generates constraint force on the underground structure, prevents the underground structure from floating upwards and deforming, and further enhances the anti-floating effect.
Drawings
FIG. 1 is a construction cross-sectional view of a construction structure of a pre-tensioned and post-anchored prestressed anti-floating anchor rod provided by the present invention;
fig. 2 is a construction cross-sectional view of a construction structure of a pre-tensioned and post-anchored prestressed anti-floating anchor rod provided by the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The following describes the implementation of the present invention in detail with reference to specific embodiments.
The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present invention, it should be understood that if there are the terms "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of the description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore the terms describing the positional relationship in the drawings are only for illustrative purposes and are not to be construed as limitations of the present patent, and those skilled in the art can understand the specific meanings of the terms according to specific situations.
Referring to fig. 1-2, the preferred embodiment of the present invention is shown.
The utility model provides an anchor formula prestressing force anti-floating anchor construction structures behind elder generation stretch-draw for solve ground anchor engineering construction, anti-problem that the effect is not good, the construction is complicated of floating.
The construction structure of the pre-tensioned and anchored prestressed anti-floating anchor rod comprises a prestressed anchor rod 10, an anchor pier 20 and an underground structure 30, wherein the prestressed anchor rod 10 is arranged on a drilled hole; forming a construction groove along the periphery of the drilled hole, wherein the construction groove is arranged in a downward sunken manner, pouring reinforcing steel bars 40 into the construction groove to form an anchor pier 20, and the underground structure 30 is in up-and-down anchoring connection with the anchor pier 20; the lower end of the prestressed anchor 10 is anchored into the borehole and the upper end of the prestressed anchor 10 is anchored into the underground structure 30.
In the construction structure of the pre-tensioned and post-anchored prestressed anti-floating anchor rod, the construction of the prestressed anchor rod 10 and the construction of the anchor pier 20 are completed by rock-soil construction teams, and the construction of the underground structure 30 is completed by a general packet construction team without mutual interference, so that the construction management is facilitated; before the underground structure 30 is constructed, the prestressed anchor rods 10 are tensioned, so that the anchor rods are conveniently tensioned and locked, and the construction steps are simplified; under the matching of the prestressed anchor rods 10 and the anchor piers 20, the anti-floating anchor has enough anti-pulling force, so that constraint force is generated on the underground structure 30 to prevent the underground structure 30 from floating upwards, and the floating deformation of the underground structure 30 is avoided, thereby enhancing the anti-floating effect.
The construction groove surrounds the surrounding drilled hole, so that the anchor pier 20 can cover the drilled hole conveniently, and the overall anti-floating effect is enhanced.
In addition, the anchor pier 20 plays a role in preventing water from permeating upwards and playing a role in water prevention.
In this embodiment, the anchor pier 20 is provided with a plurality of steel bars 40, the lower ends of the steel bars 40 are embedded into the anchor pier 20, and the upper ends of the steel bars 40 are embedded into the underground structure 30; the anchoring stability of the anchor pier 20 and the underground structure 30 is enhanced, and the anchoring of the anchor pier 20 and the underground structure 30 is facilitated.
Moreover, the steel bars 40 are vertically arranged, the water stop steel plates 50 are arranged on the steel bars 40, and the water stop steel plates 50 are horizontally arranged; the watertight steel plate 50 is located in the underground structure 30; under the action of the water stop steel plate 50, water is prevented from permeating upwards, and a waterproof effect is achieved.
And, stagnant water steel sheet 50 is horizontal arrangement, increases stagnant water scope of stagnant water steel sheet 50, improves water-proof effects.
In addition, the water stop steel plate 50 is arranged in such a way, which is helpful for playing a waterproof role on the anchor head 11, and avoids water leakage at the anchor head 11 to cause weak waterproof, thereby improving the waterproof quality of the anchor head 11.
The anchor pier 20 can be prefabricated or formed by casting in situ, the size of the anchor pier 20 is determined by design calculation, and the specification and the length of the reinforcing steel bar 40 are determined by design calculation or construction; ensuring sufficient anchoring stability of the anchor pier 20 and the underground structure 30.
The reinforcing steel bars 40 are correspondingly arranged along two sides of the prestressed anchor rod 10 in pairs; the whole stress is more uniform, and the anchoring stability of the anchor pier 20 and the underground structure 30 is enhanced.
Tensioning and locking the prestressed anchor 10, wherein the locking load is set as the bearing capacity of the prestressed anchor 10; as the underground water level rises, the underground structure 30 starts to bear the water buoyancy and transmit the pulling force to the prestressed anchor 10, and the prestressed anchor 10 has the pulling resistance because of being anchored in the stratum, so that the underground structure 30 is restrained and prevented from floating; with the continuous rising of the underground water level, the underground structure 30 bears the increasingly larger water buoyancy, the prestressed anchor 10 bears the increasingly larger pulling force, and the generated resistance is also increasingly larger, but because the floating force generally cannot exceed the designed bearing force (and locking load) of the prestressed anchor 10, the prestressed anchor 10 does not deform, and the underground structure 30 does not generate floating deformation.
Specifically, the prestressed anchor 10 comprises an anchor head 11 and a rod body 12, wherein the anchor head 11 is positioned outside a drilled hole, the rod body 12 is positioned in the drilled hole, and after the rod body 12 is locked by tensioning the anchor head 11, the anchor head 11 is anchored into the underground structure 30; the anchor head 11 is used for tensioning and locking the rod body 12, so that the operation of the prestressed anchor rod 10 is facilitated; in addition, the anchor head 11 is arranged in such a way as to contribute to an enhanced anchoring effect of the underground structure 30 with the anchor block 20.
The prestressed anchor 10 comprises an isolation sleeve which is arranged in the borehole and surrounds the rod body 12; facilitating the tension and locking of the prestressed anchor rod 10.
The isolation sleeve is provided with a plurality of concave grooves 14 and a plurality of convex blocks 13, the concave grooves 14 are arranged in a concave mode towards the inner rod body 12 along the horizontal direction, and the convex blocks 13 are arranged in a convex mode along the direction away from the rod body 12; along the longitudinal direction, the concave grooves 14 and the convex blocks 13 are arranged in a staggered mode; in this way, the concave groove 14 and the convex block 13 are matched with the slurry in the drill hole, and the anti-floating capacity of the prestressed anchor rod 10 is enhanced.
The concave grooves 14 are arranged in a rectangular shape, so that the friction force of the prestressed anchor rod 10 is increased, and the anti-floating capacity of the prestressed anchor rod 10 is enhanced.
The convex blocks 13 are arranged in a rectangular shape, so that the friction force of the prestressed anchor rod 10 is increased, and the anti-floating capacity of the prestressed anchor rod 10 is enhanced.
A reinforcing block is arranged inside the isolation sleeve, and the rod body 12 penetrates through the reinforcing block and extends downwards; the prestressed anchor rod 10 is convenient to center, and the anchoring effect is ensured.
The anchor pier 20 is provided with an upper end surface facing the underground structure 30, the upper end surface of the anchor pier 20 is horizontally arranged, the underground structure 30 is provided with a lower end surface facing the anchor pier 20, and the lower end surface of the underground structure 30 is horizontally arranged; the upper end surface of the anchor pier 20 is in fit arrangement with the lower end surface of the underground structure 30; the contact area between the underground structure 30 and the anchor pier 20 is increased, and the anchoring effect between the underground structure 30 and the anchor pier 20 is improved.
The upper end surface of the anchor pier 20 is provided with a waterproof layer, and the lower end surface of the underground structure 30 is abutted against and attached to the waterproof layer; under the effect of the waterproof layer, water is prevented from seeping upwards and entering the underground structure 30, so that the waterproof effect is achieved.
The anchor piers 20 occupy the entire construction groove, improve the setting stability of the anchor piers 20, and are not easily deviated, thereby enhancing the anchoring effect between the underground structure 30 and the anchor piers 20.
The waterproof layer can be composed of waterproof mortar and waterproof factice, the waterproof mortar is arranged above the waterproof factice, the waterproof factice plays a role in blocking water, the water is further blocked by the waterproof mortar, the anchor pier 20 has downward pressure, and the waterproof effect is achieved under the matching of the anchor pier 20, the waterproof mortar and the waterproof factice.
The prestressed anchor 10 is a tension type prestressed anchor 10 or a pressure type prestressed anchor 10; and different construction requirements are met.
The drill hole is positioned in the middle of the anchor pier 20, so that when the prestressed anchor rod is tensioned and locked, the whole stress is more uniform, and the anchoring stability of the anchor pier 20 and the underground structure 30 is enhanced.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. The construction structure of the pre-tensioned and anchored prestressed anti-floating anchor rod is characterized by comprising a prestressed anchor rod, an anchor pier and an underground structure, wherein the prestressed anchor rod, the anchor pier and the underground structure are arranged on a drilled hole; forming a construction groove along the periphery of the drill hole, wherein the construction groove is arranged in a downward sunken manner, pouring reinforced concrete until the construction groove forms the anchor pier, and the underground structure is in up-down anchoring connection with the anchor pier; and the lower end of the prestressed anchor rod is anchored into the drilling hole, and the upper end of the prestressed anchor rod is anchored into the underground structure.
2. A pre-tensioned anchorage-type prestressed anti-floating anchor rod construction structure as claimed in claim 1, wherein said anchor pier is provided with a plurality of reinforcing bars, lower ends of said reinforcing bars being embedded in said anchor pier, and upper ends of said reinforcing bars being embedded in said underground structure.
3. A pre-tensioned and post-anchored prestressed anti-floating anchor rod construction structure as claimed in claim 2, wherein said reinforcing bars are arranged vertically, said reinforcing bars are provided with water-stopping steel plates, said water-stopping steel plates are arranged horizontally; the water stop steel plate is positioned in the underground structure.
4. A pre-tensioned and post-anchored prestressed anti-floating anchor rod construction structure as claimed in claim 2, wherein said reinforcing bars are arranged in pairs along both sides of said prestressed anchor rod, respectively.
5. A construction structure as claimed in any one of claims 1 to 4, wherein the prestressed anchor includes an anchor head and a rod body, the anchor head is located outside the borehole, the rod body is located in the borehole, and the anchor head is anchored into the underground structure after the rod body is locked by tensioning the anchor head.
6. A construction set of pre-tensioned anchorage-type prestressed anti-floating anchor as claimed in claim 5, wherein said prestressed anchor includes an isolation sleeve disposed in said bore hole and surrounding said shank.
7. A pre-tensioned and post-anchored prestressed anti-floating anchor rod construction structure as claimed in any one of claims 1 to 4, wherein said anchor piers have upper end surfaces facing said underground structure, said upper end surfaces of said anchor piers being arranged horizontally, said underground structure having lower end surfaces facing said anchor piers, said lower end surfaces of said underground structure being arranged horizontally; the upper end face of the anchor pier is attached to the lower end face of the underground structure.
8. A construction structure of a pre-tensioned anchorage-type prestressed anti-floating anchor rod as claimed in claim 7, wherein the upper end surface of said anchor pier is provided with a waterproof layer, and the lower end surface of said underground structure is abutted against said waterproof layer.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920211847.2U CN209837019U (en) | 2019-02-18 | 2019-02-18 | Pre-tensioning and post-anchoring type prestressed anti-floating anchor rod construction structure |
| PCT/CN2019/119501 WO2020168766A1 (en) | 2019-02-18 | 2019-11-19 | Pre-tensioned post-anchored-type prestressed anti-floating anchor rod structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920211847.2U CN209837019U (en) | 2019-02-18 | 2019-02-18 | Pre-tensioning and post-anchoring type prestressed anti-floating anchor rod construction structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209837019U true CN209837019U (en) | 2019-12-24 |
Family
ID=68903963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920211847.2U Active CN209837019U (en) | 2019-02-18 | 2019-02-18 | Pre-tensioning and post-anchoring type prestressed anti-floating anchor rod construction structure |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN209837019U (en) |
| WO (1) | WO2020168766A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111501855A (en) * | 2020-04-27 | 2020-08-07 | 中国一冶集团有限公司 | Ground anchor anti-floating structure and construction method thereof |
| WO2020168765A1 (en) * | 2019-02-18 | 2020-08-27 | 深圳市地质环境研究院有限公司 | Pre-tensioning and post-anchoring construction method for prestressed anti-floating anchor rod |
| CN112575823A (en) * | 2020-12-08 | 2021-03-30 | 中机国际工程设计研究院有限责任公司 | Anti-floating anchor rod and basement bottom plate construction method |
| CN113186988A (en) * | 2021-03-09 | 2021-07-30 | 武大巨成结构股份有限公司 | Construction method of reaming self-locking type prestress anti-floating anchor rod |
| CN113565145A (en) * | 2021-08-12 | 2021-10-29 | 武大巨成结构股份有限公司 | Device is applyed after anti prestressing force that floats of basement can be many times |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5904446A (en) * | 1995-01-19 | 1999-05-18 | Carlinsky; Herman | Flotation system for buildings |
| JP4451553B2 (en) * | 2000-08-02 | 2010-04-14 | 阪神高速道路株式会社 | Buoyancy prevention structure and construction method thereof |
| CN201137162Y (en) * | 2007-12-20 | 2008-10-22 | 青建集团股份公司 | Bottom board anti-floating anchor rod water proof processing structure |
| CN202401478U (en) * | 2012-03-06 | 2012-08-29 | 徐金 | Anti-floating anchor bolt bundle |
| CN103290843A (en) * | 2013-06-04 | 2013-09-11 | 北京工业大学 | Pre-stressed pressure-type anti-floating anchor with spiral stirrup |
| CN108331034A (en) * | 2018-04-03 | 2018-07-27 | 上海建工七建集团有限公司 | Pier nose formula anti-float anchor rod waterproofing node and its construction method |
| CN109811804A (en) * | 2019-02-18 | 2019-05-28 | 深圳市工勘岩土技术有限公司 | Anchoring type prestressed anti-floating anchor rod construction method after pretensioning |
-
2019
- 2019-02-18 CN CN201920211847.2U patent/CN209837019U/en active Active
- 2019-11-19 WO PCT/CN2019/119501 patent/WO2020168766A1/en active Application Filing
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020168765A1 (en) * | 2019-02-18 | 2020-08-27 | 深圳市地质环境研究院有限公司 | Pre-tensioning and post-anchoring construction method for prestressed anti-floating anchor rod |
| CN111501855A (en) * | 2020-04-27 | 2020-08-07 | 中国一冶集团有限公司 | Ground anchor anti-floating structure and construction method thereof |
| CN112575823A (en) * | 2020-12-08 | 2021-03-30 | 中机国际工程设计研究院有限责任公司 | Anti-floating anchor rod and basement bottom plate construction method |
| CN113186988A (en) * | 2021-03-09 | 2021-07-30 | 武大巨成结构股份有限公司 | Construction method of reaming self-locking type prestress anti-floating anchor rod |
| CN113565145A (en) * | 2021-08-12 | 2021-10-29 | 武大巨成结构股份有限公司 | Device is applyed after anti prestressing force that floats of basement can be many times |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020168766A1 (en) | 2020-08-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209837019U (en) | Pre-tensioning and post-anchoring type prestressed anti-floating anchor rod construction structure | |
| WO2020168765A1 (en) | Pre-tensioning and post-anchoring construction method for prestressed anti-floating anchor rod | |
| CN209837018U (en) | Prefabricated prestressed anchor rod construction structure | |
| CN105926617B (en) | A kind of structure and its construction method that protection can be provided anti-float anchor rod | |
| WO2010097642A1 (en) | Hydraulic tie rod for construction projects | |
| CN104452829B (en) | A kind of pile-raft foundation float Structure and construction method | |
| KR100934196B1 (en) | Pressure type small pile for bearing bidirectional applied force and preventive methods for the buoyancy in construction using the same | |
| CN208618420U (en) | A kind of assembled waist rail for retaining structure | |
| CN103603379A (en) | Anti-floating system combining anti-floating cement soil pile and anti-floating anchor rod and construction process of anti-floating system | |
| CN113931213A (en) | Pile foundation flexible connection node only used for uplift resistance and construction method | |
| CN111894045A (en) | Anti-floating anchoring structure and anti-floating anchoring construction method for basement bottom plate | |
| CN113123373A (en) | Pressure-bearing uplift pile with rear-inserted unbonded steel strand U-shaped pipe and construction method thereof | |
| CN211735379U (en) | Waterproof structure of anti-floating anchor rod penetrating through basement bottom plate | |
| KR100534603B1 (en) | Apparatus for Retaining Wall Using a Ground Anchor And the Method Using the Same | |
| CN205712098U (en) | A kind of structure that anti-float anchor rod can be provided protection | |
| CN210263039U (en) | Waterproof sealing anti-floating anchor rod | |
| CN212582757U (en) | Anti-floating anchoring structure for basement bottom plate | |
| CN210369069U (en) | Joint anti structure of floating of karst area foundation ditch | |
| CN205712560U (en) | A kind of wallboard connects node | |
| CN213358703U (en) | Arrangement structure of tower anti-floating anchor rod | |
| CN212742652U (en) | Seepage-proof steel anchoring anti-floating anchor rod | |
| CN114108694A (en) | Micro-disturbance anti-floating underground cylindrical structure and construction method thereof | |
| CN110173004A (en) | High-pressure rotary-spray anchor cable structure and its construction method for building anti-floating | |
| KR20040008905A (en) | Reinforced concrete structure for building retaining wall and method for constructing retaining wall using the same | |
| CN111648359A (en) | Construction method of anchor rod pile |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |