CN107724423A - Crane beam on rock wall for underground power house present situation foundation reinforcing structure and its construction method - Google Patents
Crane beam on rock wall for underground power house present situation foundation reinforcing structure and its construction method Download PDFInfo
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- CN107724423A CN107724423A CN201711144840.5A CN201711144840A CN107724423A CN 107724423 A CN107724423 A CN 107724423A CN 201711144840 A CN201711144840 A CN 201711144840A CN 107724423 A CN107724423 A CN 107724423A
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- 238000010276 construction Methods 0.000 title claims abstract description 29
- 239000011435 rock Substances 0.000 title claims abstract description 24
- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 19
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 55
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 4
- 238000007596 consolidation process Methods 0.000 claims description 37
- 229910000831 Steel Inorganic materials 0.000 claims description 34
- 239000010959 steel Substances 0.000 claims description 34
- 239000004567 concrete Substances 0.000 claims description 14
- 230000002787 reinforcement Effects 0.000 claims description 11
- 238000013461 design Methods 0.000 claims description 9
- 239000004568 cement Substances 0.000 claims description 8
- 238000005553 drilling Methods 0.000 claims description 7
- 230000011218 segmentation Effects 0.000 claims description 6
- 239000002689 soil Substances 0.000 claims description 6
- 239000002002 slurry Substances 0.000 claims description 5
- 238000005507 spraying Methods 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- 239000011440 grout Substances 0.000 claims description 4
- 239000008267 milk Substances 0.000 claims description 4
- 210000004080 milk Anatomy 0.000 claims description 4
- 235000013336 milk Nutrition 0.000 claims description 4
- 238000011010 flushing procedure Methods 0.000 claims description 3
- 238000009415 formwork Methods 0.000 claims description 3
- 238000007569 slipcasting Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 230000015271 coagulation Effects 0.000 claims 1
- 238000005345 coagulation Methods 0.000 claims 1
- 238000005728 strengthening Methods 0.000 abstract description 2
- 238000009412 basement excavation Methods 0.000 description 4
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/02—Retaining or protecting walls
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B9/00—Water-power plants; Layout, construction or equipment, methods of, or apparatus for, making same
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/02—Retaining or protecting walls
- E02D29/0225—Retaining or protecting walls comprising retention means in the backfill
- E02D29/0233—Retaining or protecting walls comprising retention means in the backfill the retention means being anchors
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/02—Retaining or protecting walls
- E02D29/0225—Retaining or protecting walls comprising retention means in the backfill
- E02D29/0241—Retaining or protecting walls comprising retention means in the backfill the retention means being reinforced earth elements
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/12—Consolidating by placing solidifying or pore-filling substances in the soil
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D37/00—Repair of damaged foundations or foundation structures
-
- 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
- E02D5/76—Anchorings for bulkheads or sections thereof in as much as specially adapted therefor
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/003—Injection of material
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0046—Production methods using prestressing techniques
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0004—Synthetics
- E02D2300/0018—Cement used as binder
- E02D2300/002—Concrete
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Agronomy & Crop Science (AREA)
- Soil Sciences (AREA)
- Mechanical Engineering (AREA)
- Bulkheads Adapted To Foundation Construction (AREA)
Abstract
The present invention relates to a kind of crane beam on rock wall for underground power house present situation foundation reinforcing structure and its construction method.It is an object of the invention to provide the low crane beam on rock wall for underground power house present situation foundation reinforcing structure of a kind of construction safety, short construction period, construction investment and its construction method.The technical scheme is that：A kind of crane beam on rock wall for underground power house present situation foundation reinforcing structure, it is characterised in that：Reinforced concrete native attached wall wall has been poured on the basis of the Rock Crane Rail Support present situation of formation has been excavated, the Rock Crane Rail Support being supported on the basis of the reinforced concrete native attached wall wall top face and Rock Crane Rail Support present situation is poured above reinforced concrete native attached wall wall.The present invention is applied to underground workshop Rock Crane Rail Support strengthening of foundation under unfavorable geological condition.
Description
Technical field
The present invention relates to a kind of crane beam on rock wall for underground power house present situation foundation reinforcing structure and its construction method.Suitable for not
Underground workshop Rock Crane Rail Support strengthening of foundation under good geological conditions.
Background technology
Bridge machine supporting structure uses Rock Crane Rail Support structural shape in underground workshop, it is possible to reduce underground power house across
Degree, crane can put into operation ahead of time, can effectively shorten construction period, reduce construction cost, therefore find broad application.Due to
The crane wheel load of underground workshop is larger, in unfavorable geology bars such as High Ground Stress Areas, soft stratum, structure surface developments
Under part, the shaping of Rock Crane Rail Support foundation excavation and rock-mass quality are poor, are influenceed by unfavorable geological condition and execution conditions, present situation base
Plinth does not often possess secondary excavation and permutizer condition, and follow-up lower with underground power house is dug, and basis will further relax breakage, lead
Foundation bearing capacity is caused to meet to require.Therefore, it is necessary to Rock Crane Rail Support present situation basis after excavation is reinforced, it is ensured that palisades
The bearing capacity of crane girder, on the premise of construction safety is ensured, give full play to the advantage of Rock Crane Rail Support structure.
The content of the invention
The technical problem to be solved in the present invention is：Problem be present for above-mentioned, there is provided a kind of construction safety, construction period
The crane beam on rock wall for underground power house present situation foundation reinforcing structure short, construction investment is low and its construction method.
The technical solution adopted in the present invention is：A kind of crane beam on rock wall for underground power house present situation foundation reinforcing structure, it is special
Sign is：Reinforced concrete native attached wall wall, reinforced concrete native attached have been poured on the basis of the Rock Crane Rail Support present situation of formation has been excavated
The palisades crane being supported on the basis of the reinforced concrete native attached wall wall top face and Rock Crane Rail Support present situation is poured above wall wall
Beam；
It is connected between the Rock Crane Rail Support and reinforced concrete native attached wall wall through attached wall wall top face joint bar；
The reinforced concrete native attached wall wall is fixed on Rock Crane Rail Support present situation through attached wall wall side joint bar and prestress anchorage cable
Basis；
In the Rock Crane Rail Support present situation basis lid weight is carried out using the reinforced concrete native attached wall wall and Rock Crane Rail Support
Grouting.
The reinforced concrete native attached wall wall top face is to the inclined inclined-plane of Rock Crane Rail Support present situation base side.
The reinforced concrete native attached wall is preset with connection reinforced concrete native attached wall wall side and Rock Crane Rail Support present situation within the walls
The prestress anchorage cable on basis is oriented to steel pipe；The prestress anchorage cable be oriented to through the prestress anchorage cable after steel pipe be fixed on it is described
Rock Crane Rail Support present situation basis.
The prestress anchorage cable design load is 2000kN~2500kN, and length is 25m~30m, 10 °~20 ° of the elevation angle,
Array pitch is 3.6m~4m.
The reinforced concrete native attached wall wall connects its side and Rock Crane Rail Support present situation with being preset with Rock Crane Rail Support
The consolidation grouting on basis is oriented to steel pipe, and consolidation grouting is oriented to steel pipe and the consolidation grouting being drilled with the basis of Rock Crane Rail Support present situation
Hole site is corresponding.
Consolidation grouting hole aperture is 56mm, and it is 4m~6m to enter rock depth, and an array pitch is 2m~2.4m；The consolidation fills
The slurries being in the milk in slurry hole are configured using PO42.5R cement, the ratio of mud 1:1 or 0.5:1.
The diameter of the attached wall wall side joint bar is 32mm, and length is 6m~9m, protruded length 1.4m, 10 ° of the elevation angle
~20 °, an array pitch is 1m~1.2m.
Stir cement and soft soil in deep ground in the range of the reinforced concrete native attached wall wall is corresponded on the basis of the Rock Crane Rail Support present situation
Form concrete spray coating.
A kind of construction method of crane beam on rock wall for underground power house present situation foundation reinforcing structure, it is characterised in that：
A, Rock Crane Rail Support present situation base flexible sillar and other residues are removed, and with high pressure water flushing wash clean；
B, the Rock Crane Rail Support present situation basis stir cement and soft soil in deep ground shape in the range of the reinforced concrete native attached wall wall of construction is intended
Into concrete spray coating；
C, carry out the drilling of prestress anchorage cable on Rock Crane Rail Support present situation basis, reeve, the drilling of attached wall wall side joint bar,
Inserted link, slip casting, consolidation grouting hole drilling；
D, the longitudinal reinforcement of reinforced concrete native attached wall wall, transverse steel and lacing wire system peace, longitudinal reinforcement and attached wall wall side
Joint bar welds；Corresponding prestress anchorage cable prestressed anchor cable is oriented to steel pipe, and corresponding consolidation grouting hole installation consolidation grouting is oriented to
Steel pipe；
E, the attached wall wall of formwork pouring reinforcement concrete；
F, reinforced concrete native attached wall wall concrete strength removes side form after reaching 75% design strength；
G, tensioning fixation is oriented to the prestress anchorage cable of steel pipe through prestress anchorage cable；
H, reinforced concrete native attached wall wall concrete strength, which reaches, carries out portion's Rock Crane Rail Support thereon after 100% design strength and applies
Work；
I. steel pipe and the segmentation of consolidation grouting hole from-inner-to-outer are oriented to by consolidation grouting, divide ordered pair Rock Crane Rail Support present situation base
The carry out consolidation grouting of plinth.
The reinforced concrete native attached wall wall and Rock Crane Rail Support are jumped storehouse using segmentation and poured, and the construction joint between the face of storehouse should be set
Keyway and joint bar.
The beneficial effects of the invention are as follows：Reinforced concrete native attached wall wall is inserted through prestress anchorage cable, attached wall wall side in the present invention
Muscle is fixed on the basis of Rock Crane Rail Support present situation, and reinforced concrete native attached wall wall coordinates consolidation grouting to Rock Crane Rail Support present situation basis
Reinforced, under conditions of without secondary excavation and displacement, the integrality on Rock Crane Rail Support basis is improved, after reducing
Continuous relaxation damaged degree, it is ensured that the bearing capacity of Rock Crane Rail Support, ensure construction safety, shorten construction period, reduce engineering
Investment.
Brief description of the drawings
Fig. 1 is the structure arrangement schematic diagram of the present embodiment.
Embodiment
As shown in figure 1, the present embodiment is a kind of crane beam on rock wall for underground power house present situation foundation reinforcing structure, shape is being excavated
Into Rock Crane Rail Support present situation basis 5 on poured reinforced concrete native attached wall wall 1, the top of reinforced concrete native attached wall wall 1 has poured
The Rock Crane Rail Support 4 being supported on the top surface of reinforced concrete native attached wall wall 1 and Rock Crane Rail Support present situation basis 5.
In this example, Rock Crane Rail Support present situation basis 5 is the rock mass basis for having excavated formation, and scope is that Rock Crane Rail Support 4 pushes up
6m~8m below face；The top surface of reinforced concrete native attached wall wall 1 is to the inclined inclined-plane in basic 5 sides of Rock Crane Rail Support present situation；Palisades are hung
Correspond to stir cement and soft soil in deep ground in the range of reinforced concrete native attached wall wall 1 on bicycle beam present situation basis 5 and form concrete spray coating 8.Steel
The attached wall wall 1 of reinforced concrete uses C30 concretings, and thickness is 60cm~80cm, is highly 4m~5m, the attached wall is provided with the walls
Longitudinal reinforcement 9, transverse steel 10 and the lacing wire 11 of some interconnections.
It is connected between the Rock Crane Rail Support 4 of the present embodiment and reinforced concrete native attached wall wall 1 through attached wall wall top face joint bar 6, it is attached
Wall wall top face joint bar 6 is extended by transverse steel 10 to be formed, and basic 5 depths of insertion Rock Crane Rail Support present situation are 1.0m~1.2m.
The reinforced concrete native attached wall wall 1 of the present embodiment is fixed on palisades and hung through attached wall wall side joint bar 7 and prestress anchorage cable 2
Bicycle beam present situation basis 5.
The side of connection reinforced concrete native attached wall wall 1 and Rock Crane Rail Support present situation base are preset with reinforced concrete native attached wall wall 1
The prestress anchorage cable of plinth 5 is oriented to steel pipe 12, and prestress anchorage cable 2 is fixed on palisades crane after being oriented to steel pipe 12 through prestress anchorage cable
Beam present situation basis 5.The design load of prestress anchorage cable 2 is 2000kN~2500kN, and length is 25m~30m, 10 °~20 ° of the elevation angle,
Between array pitch be 3.6m~4m.
The diameter of attached wall wall side joint bar 7 is 32mm, and length is 6m~9m, protruded length 1.4m, and 10 ° of the elevation angle~
20 °, an array pitch is 1m~1.2m；The exposed parts of the side joint bar link with the welding of longitudinal reinforcement 9.
Carried out in the Rock Crane Rail Support present situation basis 5 of the present embodiment using reinforced concrete native attached wall wall 1 and Rock Crane Rail Support 4
Lid is in the milk again.
Reinforced concrete native attached wall wall 1 connects its side and Rock Crane Rail Support present situation base with being preset with Rock Crane Rail Support 4
The consolidation grouting of plinth 5 is oriented to steel pipe 13, and consolidation grouting is oriented to steel pipe 13 and the consolidation being drilled with Rock Crane Rail Support present situation basis 5
The position correspondence of grout hole 3.
The aperture of consolidation grouting hole 3 is 56mm, and it is 4m~6m to enter rock depth, and an array pitch is 2m~2.4m；In consolidation grouting hole 3
The slurries of grouting are configured using PO42.5R cement, the ratio of mud 1:1 or 0.5:1.
0~the 2m of aperture of consolidation grouting hole 3 is outer section, is inner segment within hole depth 2m, passes through consolidation grouting hole 3 and consolidation grouting
It is oriented to steel pipe 13 to cover Rock Crane Rail Support present situation basis 5 when being in the milk again, the outer section grouting pressure in consolidation grouting hole 3 is 0.1
~0.3Mpa, inner segment grouting pressure are 0.3~0.5Mpa.
The construction procedure of the present embodiment is as follows：
A, remove Rock Crane Rail Support present situation basis 5 and loosen sillar and other residues, and with high pressure water flushing wash clean；
B, intend the spray CF30 steel fibres of Rock Crane Rail Support present situation basis 5 in the range of the reinforced concrete native attached wall wall 1 of construction to mix
Solidifying soil forms concrete spray coating 8；
C, carry out the drilling of prestress anchorage cable 2 on Rock Crane Rail Support present situation basis 5, reeve, the brill of attached wall wall side joint bar 7
Hole, inserted link, slip casting, consolidation grouting hole 3 drill；
D, the longitudinal reinforcement 9 of reinforced concrete native attached wall wall 1, transverse steel 10 and the system peace of lacing wire 11, longitudinal reinforcement 9 and attached wall
Wall side joint bar 7 welds；The corresponding prestressed anchor cable of prestress anchorage cable 2 is oriented to steel pipe 12, and corresponding consolidation grouting hole 3 is installed solid
Knot grouting is oriented to steel pipe 13；
E, the attached wall wall 1 of formwork pouring reinforcement concrete；
F, the concrete strength of reinforced concrete native attached wall wall 1 removes side form after reaching 75% design strength；
G, tensioning fixation is oriented to the prestress anchorage cable 2 of steel pipe 12 through prestress anchorage cable；
H, the concrete strength of reinforced concrete native attached wall wall 1 carries out portion's Rock Crane Rail Support 4 thereon after reaching 100% design strength
Construction；
I. steel pipe 13 and the segmentation of the from-inner-to-outer of consolidation grouting hole 3 are oriented to by consolidation grouting, divide ordered pair Rock Crane Rail Support to show
The carry out consolidation grouting on shape basis 5.
Wherein, reinforced concrete native attached wall wall 1 and Rock Crane Rail Support 4 are jumped storehouse using segmentation and poured, and the construction joint between the face of storehouse should
Keyway and joint bar are set.
Consolidation grouting hole 3 divides two sequences to construct, I sequence hole and II sequence hole arranged for interval, and in the work progress of consolidation grouting hole 3
It should carry out lifting observation, Rock Crane Rail Support 4 and the accumulative deformation permissible value that lifts of reinforced concrete native attached wall wall 1 are 100 μm.
Claims (10)
- A kind of 1. crane beam on rock wall for underground power house present situation foundation reinforcing structure, it is characterised in that：Hung in the palisades for having excavated formation Reinforced concrete native attached wall wall (1) has been poured on bicycle beam present situation basis (5), support has been poured above reinforced concrete native attached wall wall (1) Rock Crane Rail Support (4) on reinforced concrete native attached wall wall (1) top surface and Rock Crane Rail Support present situation basic (5)；It is connected between the Rock Crane Rail Support (4) and reinforced concrete native attached wall wall (1) through attached wall wall top face joint bar (6)；The reinforced concrete native attached wall wall (1) is fixed on Rock Crane Rail Support through attached wall wall side joint bar (7) and prestress anchorage cable (2) Present situation basis (5)；The Rock Crane Rail Support present situation is carried out in basic (5) using the reinforced concrete native attached wall wall (1) and Rock Crane Rail Support (4) Lid is in the milk again.
- 2. crane beam on rock wall for underground power house present situation foundation reinforcing structure according to claim 1, it is characterised in that：The steel Attached wall wall (1) top surface of reinforced concrete is to the inclined inclined-plane in basic (5) side of Rock Crane Rail Support present situation.
- 3. crane beam on rock wall for underground power house present situation foundation reinforcing structure according to claim 1 or 2, it is characterised in that：Institute State and connection reinforced concrete native attached wall wall (1) side and Rock Crane Rail Support present situation basis are preset with reinforced concrete native attached wall wall (1) (5) prestress anchorage cable is oriented to steel pipe (12)；After the prestress anchorage cable (2) is oriented to steel pipe (12) through the prestress anchorage cable It is basic (5) to be fixed on the Rock Crane Rail Support present situation.
- 4. crane beam on rock wall for underground power house present situation foundation reinforcing structure according to claim 3, it is characterised in that：It is described pre- Stress anchor cable (2) design load is 2000kN~2500kN, and length is 25m~30m, and 10 °~20 ° of the elevation angle, an array pitch is 3.6m ~4m.
- 5. crane beam on rock wall for underground power house present situation foundation reinforcing structure according to claim 1, it is characterised in that：The steel It is preset with the attached wall wall (1) of reinforced concrete and Rock Crane Rail Support (4) and connect its side and Rock Crane Rail Support present situation basis (5) Consolidation grouting is oriented to steel pipe (13), and consolidation grouting is oriented to steel pipe (13) with being drilled with consolidating in Rock Crane Rail Support present situation basic (5) Tie grout hole (3) position correspondence.
- 6. crane beam on rock wall for underground power house present situation foundation reinforcing structure according to claim 5, it is characterised in that：It is described solid It is 56mm to tie grout hole (3) aperture, and it is 4m~6m to enter rock depth, and an array pitch is 2m~2.4m；Filled in the consolidation grouting hole (3) The slurries of slurry are configured using PO42.5R cement, the ratio of mud 1:1 or 0.5:1.
- 7. crane beam on rock wall for underground power house present situation foundation reinforcing structure according to claim 1, it is characterised in that：It is described attached The diameter of wall wall side joint bar (7) is 32mm, and length is 6m~9m, protruded length 1.4m, 10 °~20 ° of the elevation angle, an array pitch For 1m~1.2m.
- 8. crane beam on rock wall for underground power house present situation foundation reinforcing structure according to claim 1, it is characterised in that：The rock Stir cement and soft soil in deep ground in the range of the reinforced concrete native attached wall wall (1) is corresponded on wall crane girder present situation basis (5) and forms coagulation Native spray-up (8).
- A kind of 9. construction party of crane beam on rock wall for underground power house present situation foundation reinforcing structure described in claim 1~8 any one Method, it is characterised in that：A, remove Rock Crane Rail Support present situation basic (5) and loosen sillar and other residues, and with high pressure water flushing wash clean；B, basic (5) stir cement and soft soil in deep ground of Rock Crane Rail Support present situation in the range of the reinforced concrete native attached wall wall (1) of construction is intended Form concrete spray coating (8)；C, the drilling of prestress anchorage cable (2) is carried out on Rock Crane Rail Support present situation basis (5), is reeved, attached wall wall side joint bar (7) Drilling, inserted link, slip casting, consolidation grouting hole (3) drilling；D, the longitudinal reinforcement (9) of reinforced concrete native attached wall wall (1), transverse steel (10) and lacing wire (11) system peace, longitudinal reinforcement (9) Welded with attached wall wall side joint bar (7)；Corresponding prestress anchorage cable (2) prestressed anchor cable is oriented to steel pipe (12), corresponding consolidation Grout hole (3) installation consolidation grouting is oriented to steel pipe (13)；E, the attached wall wall (1) of formwork pouring reinforcement concrete；F, reinforced concrete native attached wall wall (1) concrete strength removes side form after reaching 75% design strength；G, tensioning fixation is oriented to the prestress anchorage cable (2) of steel pipe (12) through prestress anchorage cable；H, reinforced concrete native attached wall wall (1) concrete strength carries out portion's Rock Crane Rail Support (4) thereon after reaching 100% design strength Construction；I. the segmentation of steel pipe (13) and consolidation grouting hole (3) from-inner-to-outer is oriented to by consolidation grouting, divides ordered pair Rock Crane Rail Support to show The carry out consolidation grouting on shape basis (5).
- 10. construction method according to claim 9, it is characterised in that：The reinforced concrete native attached wall wall (1) and palisades are hung Bicycle beam (4) is jumped storehouse using segmentation and poured, and the construction joint between the face of storehouse should set keyway and joint bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711144840.5A CN107724423A (en) | 2017-11-17 | 2017-11-17 | Crane beam on rock wall for underground power house present situation foundation reinforcing structure and its construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711144840.5A CN107724423A (en) | 2017-11-17 | 2017-11-17 | Crane beam on rock wall for underground power house present situation foundation reinforcing structure and its construction method |
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| CN107724423A true CN107724423A (en) | 2018-02-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711144840.5A Pending CN107724423A (en) | 2017-11-17 | 2017-11-17 | Crane beam on rock wall for underground power house present situation foundation reinforcing structure and its construction method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111424880A (en) * | 2020-04-30 | 2020-07-17 | 中国葛洲坝集团第三工程有限公司 | Novel bearing platform structure for crane beam of bridge crane of underground factory building and construction method of bearing platform structure |
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| CN105089023A (en) * | 2015-04-14 | 2015-11-25 | 中国电建集团贵阳勘测设计研究院有限公司 | Improving method for concrete floor of hydropower house and structure of concrete floor |
| CN205062775U (en) * | 2015-10-10 | 2016-03-02 | 中国电建集团贵阳勘测设计研究院有限公司 | Into factory's traffic hole structure is crossed to power station underground factory building rock -wall crane girder |
| CN106567405A (en) * | 2015-10-10 | 2017-04-19 | 中国电建集团贵阳勘测设计研究院有限公司 | Underground powerhouse palisade crane beam overbreak reinforcement structure and construction method thereof |
| CN207659988U (en) * | 2017-11-17 | 2018-07-27 | 中国电建集团华东勘测设计研究院有限公司 | Crane beam on rock wall for underground power house present situation foundation reinforcing structure |
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2017
- 2017-11-17 CN CN201711144840.5A patent/CN107724423A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105089023A (en) * | 2015-04-14 | 2015-11-25 | 中国电建集团贵阳勘测设计研究院有限公司 | Improving method for concrete floor of hydropower house and structure of concrete floor |
| CN205062775U (en) * | 2015-10-10 | 2016-03-02 | 中国电建集团贵阳勘测设计研究院有限公司 | Into factory's traffic hole structure is crossed to power station underground factory building rock -wall crane girder |
| CN106567405A (en) * | 2015-10-10 | 2017-04-19 | 中国电建集团贵阳勘测设计研究院有限公司 | Underground powerhouse palisade crane beam overbreak reinforcement structure and construction method thereof |
| CN207659988U (en) * | 2017-11-17 | 2018-07-27 | 中国电建集团华东勘测设计研究院有限公司 | Crane beam on rock wall for underground power house present situation foundation reinforcing structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111424880A (en) * | 2020-04-30 | 2020-07-17 | 中国葛洲坝集团第三工程有限公司 | Novel bearing platform structure for crane beam of bridge crane of underground factory building and construction method of bearing platform structure |
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Application publication date: 20180223 |