CN204849588U - Dark excavation supporting device of gravity anchor - Google Patents
Dark excavation supporting device of gravity anchor Download PDFInfo
- Publication number
- CN204849588U CN204849588U CN201520426432.9U CN201520426432U CN204849588U CN 204849588 U CN204849588 U CN 204849588U CN 201520426432 U CN201520426432 U CN 201520426432U CN 204849588 U CN204849588 U CN 204849588U
- Authority
- CN
- China
- Prior art keywords
- anchor
- anchor block
- cable
- slab
- strand
- 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.)
- Expired - Fee Related
Links
Abstract
The utility model relates to an anchorage structure. A dark excavation supporting device of gravity anchor, includes main push -towing rope, cable thigh, pre -buried anchor block, set up the buttress of tip before the anchor block, set up at the back anchor slab at anchor block rear portion and set up in the preceding anchor room of anchor block front portion, a cable burst matching distributes and is in back anchor slab on, the anchor block rear portion still be provided with prestressed anchorage with the back foundation ditch that corresponds of anchor slab side and ask for, prestressed anchorage cable include prestressing force soil nail, the cover is connected with the cable thigh establish outside prestressing force soil nail just in the tip offer out grouting holes's pre -buried steel pipe and offer the pre -buried hole on the foundation ditch lateral wall. The utility model discloses overall structure reasonable in design, overall structure's stability is guaranteed to its cable strand fixed dual fixed through back anchor slab, prestressed anchorage cable, makes the prestressed anchorage cable provide the structural performance that a prestressing force guaranteed cable strand simultaneously and remain throughout stably.
Description
Technical field
The utility model relates to a kind of anchorage structures, is specifically related to a kind of gravity anchor deep pit support protection unit.
Background technology
Bridge anchorage is for integral bridge Stability Analysis of Structures performance important guarantee, traditional anchorage structures is for carry out pretreatment to foundation ditch ground, supporting is afterwards set up, the setting of main push-towing rope, strand and gravity anchorage integral-filled fixing, and to this due to the area that some geology are soft, stratum deformation is large, conversion due to stratum causes integral bridge structure to change, therefore need the design to the progressive structure of anchorage structures, the strand being keeps stability.
Utility model content
The purpose of this utility model is for above-mentioned Problems existing and deficiency, provides a kind of reasonable in design, the gravity anchor deep pit support protection unit that overall performance is stable.
For achieving the above object, the technical scheme taked is:
A kind of gravity anchor deep pit support protection unit, comprise main push-towing rope, strand, pre-buried anchor block, be arranged on anchor block leading section buttress, be arranged on the rear anchor slab at anchor block rear portion and be arranged on the front anchor room of anchor block front portion, described strand coupling is distributed on described rear anchor slab, the foundation ditch side that described anchor block rear portion is corresponding with rear anchor slab is also provided with prestress anchorage cable, described prestress anchorage cable comprise be connected with strand prestressed soil nailing, to be set in outside prestressed soil nailing and the inner end embedded steel tube that offers slurry outlet and the embedded hole that is opened on foundation pit side-wall.
The foundation ditch side that described anchor block rear portion is corresponding with rear anchor slab is also provided with supporting backing plate, and described Prestressed Soil nails on correspondence position and is provided with thread segment, and described supporting backing plate is installed with fixing by the nut mated with soil nailing.
Also crossbeam is provided with between described buttress and pre-buried anchor block.
Adopt technique scheme, acquired beneficial effect is:
The utility model overall construction design is reasonable, its strand fixing dual fixing by rear anchor slab, prestress anchorage cable, and ensure integrally-built stability, make prestress anchorage cable provide a prestressing force to ensure the structural performance of strand remains stable simultaneously.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of prestress anchorage cable.
Sequence number in figure: 1 be main push-towing rope, 2 be strand, 3 be pre-buried anchor block, 4 be buttress, 5 be rear anchor slab, 6 be front anchor room, 7 be prestress anchorage cable, 8 be prestressed soil nailing, 9 be embedded steel tube, 10 be embedded hole, 11 be supporting backing plate, 12 be nut, 13 for crossbeam.
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is elaborated.
See Fig. 1, Fig. 2, a kind of gravity anchor deep pit support protection unit, comprise master, 1, strand 2, pre-buried anchor block 3, be arranged on the buttress 4 of anchor block 3 leading section, be arranged on the rear anchor slab 5 at anchor block rear portion, with be arranged on anchor room 6 before anchor block front portion, described strand 2 coupling is distributed on described rear anchor slab 5, the foundation ditch side that described anchor block rear portion is corresponding with rear anchor slab is also provided with prestress anchorage cable 7, described prestress anchorage cable 7 comprises the prestressed soil nailing 8 be connected with strand, to be set in outside prestressed soil nailing and inner end offers the embedded steel tube 9 of slurry outlet, with the embedded hole 10 be opened on foundation pit side-wall, make between embedded hole and embedded steel tube by injecting concrete in embedded steel tube, concrete is enriched between embedded steel tube and prestressed soil nailing
The foundation ditch side that described anchor block 3 rear portion is corresponding with rear anchor slab 5 is also provided with supporting backing plate 11, described Prestressed Soil nails on correspondence position and is provided with thread segment, described supporting backing plate 11 is installed with fixing by the nut 12 mated with soil nailing 8, is also provided with crossbeam 13 between described buttress and pre-buried anchor block.
The utility model overall construction design is reasonable, its strand fixing dual fixing by rear anchor slab, prestress anchorage cable, and ensure integrally-built stability, make prestress anchorage cable provide a prestressing force to ensure the structural performance of strand remains stable simultaneously.
Claims (3)
1. a gravity anchor deep pit support protection unit, it is characterized in that, comprise main push-towing rope, strand, pre-buried anchor block, be arranged on the buttress of anchor block leading section, be arranged on the rear anchor slab at anchor block rear portion, with be arranged on anchor room before anchor block front portion, described strand coupling is distributed on described rear anchor slab, the foundation ditch side that described anchor block rear portion is corresponding with rear anchor slab is also provided with prestress anchorage cable, described prestress anchorage cable comprises the prestressed soil nailing be connected with strand, to be set in outside prestressed soil nailing and inner end offers the embedded steel tube of slurry outlet, with the embedded hole be opened on foundation pit side-wall.
2. gravity anchor deep pit support protection unit according to claim 1, it is characterized in that, the foundation ditch side that described anchor block rear portion is corresponding with rear anchor slab is also provided with supporting backing plate, described Prestressed Soil nails on correspondence position and is provided with thread segment, and described supporting backing plate is installed with fixing by the nut mated with soil nailing.
3. gravity anchor deep pit support protection unit according to claim 1, is characterized in that, be also provided with crossbeam between described buttress and pre-buried anchor block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520426432.9U CN204849588U (en) | 2015-06-19 | 2015-06-19 | Dark excavation supporting device of gravity anchor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520426432.9U CN204849588U (en) | 2015-06-19 | 2015-06-19 | Dark excavation supporting device of gravity anchor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204849588U true CN204849588U (en) | 2015-12-09 |
Family
ID=54740156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520426432.9U Expired - Fee Related CN204849588U (en) | 2015-06-19 | 2015-06-19 | Dark excavation supporting device of gravity anchor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204849588U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107988906A (en) * | 2017-12-12 | 2018-05-04 | 中交公局第二工程有限公司 | A kind of high intensity anchorage |
| CN108252214A (en) * | 2017-12-12 | 2018-07-06 | 中交公局第二工程有限公司 | A kind of anchorage construction method |
| CN108457190A (en) * | 2018-01-23 | 2018-08-28 | 中交路桥华南工程有限公司 | Anchor ceiling board construction method before anchorage |
-
2015
- 2015-06-19 CN CN201520426432.9U patent/CN204849588U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107988906A (en) * | 2017-12-12 | 2018-05-04 | 中交公局第二工程有限公司 | A kind of high intensity anchorage |
| CN108252214A (en) * | 2017-12-12 | 2018-07-06 | 中交公局第二工程有限公司 | A kind of anchorage construction method |
| CN108457190A (en) * | 2018-01-23 | 2018-08-28 | 中交路桥华南工程有限公司 | Anchor ceiling board construction method before anchorage |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151209 Termination date: 20190619 |