CN204386602U - A kind of surge shaft pit shaft collapses chamber backfill supplementary structure - Google Patents
A kind of surge shaft pit shaft collapses chamber backfill supplementary structure Download PDFInfo
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- CN204386602U CN204386602U CN201420800622.8U CN201420800622U CN204386602U CN 204386602 U CN204386602 U CN 204386602U CN 201420800622 U CN201420800622 U CN 201420800622U CN 204386602 U CN204386602 U CN 204386602U
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- pit shaft
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Abstract
A kind of surge shaft pit shaft that the utility model provides collapse chamber backfill supplementary structure, this vibrational power flow is in the surge shaft pit shaft in chamber of collapsing; Comprise backfill aggregate, steel mesh reinforcement, Guan Peng, full hall scaffold and fill concrete, wherein backfill the bottom that aggregate is laid on surge shaft pit shaft, backfill aggregate on collapse chamber view field lay steel mesh reinforcement, steel mesh reinforcement is buried pipe canopy underground, and pipe canopy deeply collapses in the wall in chamber, on pipe canopy, landfill has fill concrete, and the internal package of fill concrete has full hall scaffold, and full hall scaffold is close to the top in chamber of collapsing.Adopt the technical program to collapse chamber by safe, efficient process pit shaft, greatly reduce the risk of sump remedy, can be applicable in hydroelectric project surge shaft or other vertical cavern sump remedy.
Description
Technical field
The utility model belongs to construction of hydro project technical field, particularly relate to a kind of surge shaft pit shaft collapse chamber backfill supplementary structure.
Background technology
In surge shaft Shaft Excavation process, be subject to catalase, cranny development, enrich the unfavorable factor such as underground water, blast disturbance when affecting, shaft in wall landslide easily occurs.Especially the surge shaft that internal diameter is comparatively large, the degree of depth is darker, the Cavity treatment difficulty formed after landslide is large, expends time in longer.In prior art, the method of landslide Cavity treatment to be generally in cavity fill concrete etc., but owing to being generally the inclined-plane tending to wellbore centre bottom chamber of collapsing, if directly backfill, then fill concrete is difficult to, from steady, to play a supporting role to the top of chamber rock mass that collapses.In downward process pit shaft during slag body, there is the possibility of secondary landslide in landslide cavity backfill concrete, thus threatens the stable of whole pit shaft, brings larger hidden danger to construction safety, duration progress.Therefore, how safely, fast chamber of collapsing is processed, and ensure the stable of chamber fill concrete that collapse, become problem demanding prompt solution in construction, and determine the quality that landslide place of surge shaft pit shaft is repaired and engineering construction phase safety.
Utility model content
For solving the problems of the technologies described above, the utility model provides a kind of surge shaft pit shaft and to collapse chamber backfill supplementary structure, reaches safety, quick process pit shaft collapses chamber and ensures the effect that pit shaft is stable.
The utility model is achieved by the following technical programs.
A kind of surge shaft pit shaft that the utility model provides collapse chamber backfill supplementary structure, this vibrational power flow is in the surge shaft pit shaft in chamber of collapsing; Comprise backfill aggregate, steel mesh reinforcement, Guan Peng, full hall scaffold and fill concrete, wherein backfill the bottom that aggregate is laid on surge shaft pit shaft, backfill aggregate on collapse chamber view field lay steel mesh reinforcement, steel mesh reinforcement is buried pipe canopy underground, and pipe canopy deeply collapses in the wall in chamber, on pipe canopy, landfill has fill concrete, and the internal package of fill concrete has full hall scaffold, and full hall scaffold is close to the top in chamber of collapsing.
Described pipe canopy at least deeply collapse chamber wall in 5m.
Also comprise anchor cable, described has many, and one end landfill of anchor cable is in fill concrete, and the other end deeply collapses in the wall of chamber.
Described anchor cable at least deeply collapse chamber wall in 8m
The beneficial effects of the utility model are:
1, by backfilling aggregate to a certain elevation in surge shaft pit shaft, can fast bottom levelling chamber of collapsing;
2, by laying steel mesh reinforcement at leveling layer, can make fill concrete stepless action on the backfill aggregate of leveling layer;
3, by burying pipe canopy on steel mesh reinforcement underground, and the pipe canopy other end deeply collapses in cavity wall rock mass, not only can make to backfill aggregate bottom grouting filling space, cementing chamber of collapsing, and be implanted into reinforcing bar and fill concrete can improve pipe canopy rigidity at Guan Peng, certain supporting role is played to top backfill;
4, at the online erecting scaffold of chamber bottom reinforcement bars that collapses, or other steel supporters, fill up concrete afterwards, to collapsing, the supporting role of top of chamber rock mass is more effective;
5, the anchor cable preformed hole by drawing in advance, conveniently can arrange anchor cable, to collapsing, chamber fill concrete plays reinforcement effect.
Adopt the technical program to collapse chamber by safe, efficient process pit shaft, greatly reduce the risk of sump remedy, can be applicable in hydroelectric project surge shaft or other vertical cavern sump remedy.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1-surge shaft pit shaft, 2-collapses chamber, and 3-caves in slag body, and 4-backfills aggregate, 5-steel mesh reinforcement, 6-pipe canopy, 7-full hall scaffold, 8-fill concrete, 9-anchor cable, 10-template.
Detailed description of the invention
Further describe the technical solution of the utility model below, but described in claimed scope is not limited to.
A kind of surge shaft pit shaft as shown in Figure 1 collapse chamber backfill supplementary structure, this vibrational power flow is in the surge shaft pit shaft 1 collapsing chamber 2; Comprise backfill aggregate 4, steel mesh reinforcement 5, pipe canopy 6, full hall scaffold 7 and fill concrete 8, wherein backfill the bottom that aggregate 4 is laid on surge shaft pit shaft 1, backfill aggregate 4 on collapse chamber 2 view field lay steel mesh reinforcement 5, steel mesh reinforcement 5 is buried pipe canopy 6 underground, and pipe canopy 6 deeply collapses in the wall in chamber 2, on pipe canopy 6, landfill has fill concrete 8, and the internal package of fill concrete 8 has full hall scaffold 7, and full hall scaffold 7 is close to the top in chamber 2 of collapsing; Also comprise anchor cable 9, described has many, and one end landfill of anchor cable 9 is in fill concrete 8, and the other end deeply collapses in the wall of chamber 2.
Surge shaft pit shaft 1 caves in pit shaft in digging process, is formed and to collapse chamber 2, and landslide slag body 3 is piled up in the pit shaft that excavated, forms inclined plane; By backfilling aggregate 4 in pit shaft, backfill elevation is positioned at middle and lower part, chamber 2 of collapsing, and fast bottom levelling chamber 2 of collapsing, can be unlikely to again backfill too many, increase later stage excavated volume; Pneumatically placed concrete is closed and to be collapsed chamber 2, backfills on aggregate 4 and lays steel mesh reinforcement 5, steel mesh reinforcement 5 is buried underground pipe canopy 6 bottom chamber 2 of collapsing, described pipe canopy 6 at least deeply collapse chamber 2 wall in 5m, be preferably 5 ~ 10m; Steel mesh reinforcement 5 erects full hall scaffold 7, and top, chamber 2 of collapsing is close to by scaffold 7; The wall in chamber 2 that collapses has many with deep anchor cable 9, deeply the collapse degree of depth of wall in chamber 2 of anchor cable 9 is at least 8m, preferably 8 ~ 15m; Outside chamber 2 of collapsing, set up template 10, fill concrete 8 is full of whole chamber of collapsing; Be in the milk in pipe canopy 6, backfill aggregate can be made to be cemented to entirety, being in the milk completely is implanted into 2 reinforcing bars at pipe canopy 6, and is full of with slurries; Fill concrete 8 reaches certain length of time, lays anchor cable 9 in the anchor cable hole position of drawing in advance.The optional 108mm of pipe canopy diameter, the optional 32mm of bar diameter in pipe canopy.Collapse after chamber 2 processes, forward crawler crane or pilot shaft can vertically remove backfill aggregate 4, carry out next step construction, so can effectively, fast ensure that chamber of collapsing has processed.
Claims (4)
1. a surge shaft pit shaft collapses chamber backfill supplementary structure, this vibrational power flow is in the surge shaft pit shaft (1) of chamber of collapsing (2), it is characterized in that: comprise backfill aggregate (4), steel mesh reinforcement (5), pipe canopy (6), full hall scaffold (7) and fill concrete (8), wherein backfill the bottom that aggregate (4) is laid on surge shaft pit shaft (1), steel mesh reinforcement (5) is laid by backfill aggregate (4) the is collapsed view field in chamber (2), steel mesh reinforcement (5) is buried pipe canopy (6) underground, and pipe canopy (6) deeply collapses in the wall of chamber (2), the upper landfill of pipe canopy (6) has fill concrete (8), the internal package of fill concrete (8) has full hall scaffold (7), full hall scaffold (7) is close to the top of chamber of collapsing (2).
2. surge shaft pit shaft as claimed in claim 1 collapses chamber backfill supplementary structure, it is characterized in that: described pipe canopy (6) at least deeply collapse chamber (2) wall in 5m.
3. surge shaft pit shaft as claimed in claim 1 collapses chamber backfill supplementary structure, it is characterized in that: also comprise anchor cable (9), one end landfill of anchor cable (9) is in fill concrete (8), and the other end deeply collapses in chamber (2) wall.
4. surge shaft pit shaft as claimed in claim 3 collapses chamber backfill supplementary structure, it is characterized in that: described anchor cable (9) at least deeply collapse chamber (2) wall in 8m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420800622.8U CN204386602U (en) | 2014-12-16 | 2014-12-16 | A kind of surge shaft pit shaft collapses chamber backfill supplementary structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420800622.8U CN204386602U (en) | 2014-12-16 | 2014-12-16 | A kind of surge shaft pit shaft collapses chamber backfill supplementary structure |
Publications (1)
| Publication Number | Publication Date |
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| CN204386602U true CN204386602U (en) | 2015-06-10 |
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| CN201420800622.8U Active CN204386602U (en) | 2014-12-16 | 2014-12-16 | A kind of surge shaft pit shaft collapses chamber backfill supplementary structure |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104975861A (en) * | 2015-07-21 | 2015-10-14 | 招商局重庆交通科研设计院有限公司 | Non-disturbance type supporting structure used for tunnel vault collapsed cavity processing |
| CN105821818A (en) * | 2016-03-24 | 2016-08-03 | 中水北方勘测设计研究有限责任公司 | Soft rock area surge chamber intersecting tunnel section collapse rapid treatment method |
| CN106368709A (en) * | 2016-09-30 | 2017-02-01 | 首钢总公司 | Construction method of vertical shaft |
-
2014
- 2014-12-16 CN CN201420800622.8U patent/CN204386602U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104975861A (en) * | 2015-07-21 | 2015-10-14 | 招商局重庆交通科研设计院有限公司 | Non-disturbance type supporting structure used for tunnel vault collapsed cavity processing |
| CN105821818A (en) * | 2016-03-24 | 2016-08-03 | 中水北方勘测设计研究有限责任公司 | Soft rock area surge chamber intersecting tunnel section collapse rapid treatment method |
| CN105821818B (en) * | 2016-03-24 | 2017-11-17 | 中水北方勘测设计研究有限责任公司 | A kind of Soft Rock Area surge-chamber intersects hole section landslide immediate processing method |
| CN106368709A (en) * | 2016-09-30 | 2017-02-01 | 首钢总公司 | Construction method of vertical shaft |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |