CN207659988U - Crane beam on rock wall for underground power house present situation foundation reinforcing structure - Google Patents
Crane beam on rock wall for underground power house present situation foundation reinforcing structure Download PDFInfo
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- CN207659988U CN207659988U CN201721547469.2U CN201721547469U CN207659988U CN 207659988 U CN207659988 U CN 207659988U CN 201721547469 U CN201721547469 U CN 201721547469U CN 207659988 U CN207659988 U CN 207659988U
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- rail support
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- 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
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Abstract
The utility model is related to a kind of crane beam on rock wall for underground power house present situation foundation reinforcing structures.The purpose of this utility model is 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.The technical solution of the utility model is：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 having excavated the Rock Crane Rail Support present situation of formation, and 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 utility model is suitable for underground workshop Rock Crane Rail Support strengthening of foundation under unfavorable geological condition.
Description
Technical field
The utility model is related to a kind of crane beam on rock wall for underground power house present situation foundation reinforcing structures.Suitable for unfavorable geology item
Underground workshop Rock Crane Rail Support strengthening of foundation under part.
Background technology
In underground workshop bridge machine supporting structure use Rock Crane Rail Support structural shape, 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 geologies items such as High Ground Stress Areas, soft stratum, structure surface developments
Under part, the molding of Rock Crane Rail Support foundation excavation and rock-mass quality are poor, are influenced by unfavorable geological condition and execution conditions, present situation base
Plinth does not often have secondary excavation and permutizer condition, with underground power house it is follow-up it is lower dig, basis will further relax breakage, lead
Cause foundation bearing capacity that cannot meet the requirements.Therefore, it is necessary to be reinforced to Rock Crane Rail Support present situation basis after excavation, it is ensured that palisades
The bearing capacity of crane girder gives full play to the advantage of Rock Crane Rail Support structure under the premise of ensureing construction safety.
Invention content
The technical problems to be solved in the utility model is：For above-mentioned there are problem, a kind of construction safety, construction week are provided
The crane beam on rock wall for underground power house present situation foundation reinforcing structure that phase is short, construction investment is low.
Technical solution used by the utility model is：A kind of crane beam on rock wall for underground power house present situation foundation reinforcing structure,
It is characterized in that：Reinforced concrete native attached wall wall, reinforced concrete have been poured on the basis of having excavated the Rock Crane Rail Support present situation of formation
The palisades being supported on the basis of the reinforced concrete native attached wall wall top face and Rock Crane Rail Support present situation are poured above native attached wall wall
Crane girder；
It is connected through attached wall wall top face joint bar between the Rock Crane Rail Support and reinforced concrete native attached wall wall；
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.
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 is fixed on described after passing through the prestress anchorage cable to be oriented to steel pipe
Rock Crane Rail Support present situation basis.
The prestress anchorage cable design load be 2000kN~2500kN, length be 25m~30m, 10 °~20 ° of the elevation angle,
Array pitch is 3.6m~4m.
The reinforced concrete native attached wall wall is connected to its side and Rock Crane Rail Support present situation with being preset in Rock Crane Rail Support
The consolidation grouting on basis is oriented to steel pipe, and consolidation grouting is oriented to steel pipe and is drilled with consolidation grouting on the basis of Rock Crane Rail Support present situation
Hole site corresponds to.
Consolidation grouting hole aperture is 56mm, and it is 4m~6m to enter rock depth, and 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 attached wall wall side joint bar is 32mm, and length is 6m~9m, protruded length 1.4m, 10 ° of the elevation angle
~20 °, array pitch is 1m~1.2m.
Stir cement and soft soil in deep ground within the scope 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, high pressure water flushing wash clean is used in combination；
B, intend the Rock Crane Rail Support present situation basis stir cement and soft soil in deep ground shape within the scope of the reinforced concrete native attached wall wall of construction
At concrete spray coating；
C, Rock Crane Rail Support present situation basis carry out prestress anchorage cable drilling, 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 installation consolidation grouting in corresponding consolidation grouting hole 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 passes through the prestress anchorage cable of prestress anchorage cable guiding steel pipe；
H, progress upper part Rock Crane Rail Support is applied after reinforced concrete native attached wall wall concrete strength reaches 100% design strength
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 are poured, and the construction joint between storehouse surface should be arranged
Keyway and joint bar.
The utility model has the beneficial effects that：Reinforced concrete native attached wall wall is through prestress anchorage cable, attached wall in the utility model
Wall side joint bar 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 is reinforced, and under conditions of without secondary excavation and displacement, improves the integrality on Rock Crane Rail Support basis,
Reducing subsequent relaxation damaged degree, it is ensured that the bearing capacity of Rock Crane Rail Support ensures construction safety, shortens construction period,
Reduce construction investment.
Description of the drawings
Fig. 1 is the structure arrangement schematic diagram of the present embodiment.
Specific implementation mode
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
At Rock Crane Rail Support present situation basis 5 on poured reinforced concrete native attached wall wall 1,1 top of reinforced concrete native attached wall wall has poured
The Rock Crane Rail Support 4 being supported on 1 top surface of reinforced concrete native attached wall wall 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 ranging from Rock Crane Rail Support 4 pushes up
6m~8m below face；1 top surface of reinforced concrete native attached wall wall 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 1 range of reinforced concrete native attached wall wall on bicycle beam present situation basis 5 and forms concrete spray coating 8.Steel
It is 60cm~80cm that the attached wall wall 1 of reinforced concrete, which uses C30 concretings, thickness, is highly 4m~5m, which is equipped within the walls
Longitudinal reinforcement 9, transverse steel 10 and the lacing wire 11 of several interconnections.
It is connected through attached wall wall top face joint bar 6 between the Rock Crane Rail Support 4 of the present embodiment and reinforced concrete native attached wall wall 1, it is attached
Wall wall top face joint bar 6 is extended by transverse steel 10, and it is 1.0m~1.2m to be inserted into basic 5 depths of Rock Crane Rail Support present situation.
The reinforced concrete native attached wall wall 1 of the present embodiment is fixed on palisades and hangs through attached wall wall side joint bar 7 and prestress anchorage cable 2
Bicycle beam present situation basis 5.
1 side of connection reinforced concrete native attached wall wall and Rock Crane Rail Support present situation base are preset in 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 passing through prestress anchorage cable to be oriented to steel pipe 12
Beam present situation basis 5.2 design load of prestress anchorage cable be 2000kN~2500kN, length be 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 °, array pitch is 1m~1.2m；The exposed parts of the side joint bar are linked with the welding of longitudinal reinforcement 9.
It is carried out using reinforced concrete native attached wall wall 1 and Rock Crane Rail Support 4 in the Rock Crane Rail Support present situation basis 5 of the present embodiment
Lid is in the milk again.
Reinforced concrete native attached wall wall 1 is connected to its side and Rock Crane Rail Support present situation base with being preset in Rock Crane Rail Support 4
The consolidation grouting of plinth 5 is oriented to steel pipe 13, the consolidation that consolidation grouting is oriented to steel pipe 13 and is drilled on Rock Crane Rail Support present situation basis 5
3 position of grout hole corresponds to.
3 aperture of consolidation grouting hole is 56mm, and it is 4m~6m to enter rock depth, and 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.
3 0~2m of aperture of consolidation grouting hole is outer segment, 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 segment 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, it removes Rock Crane Rail Support present situation basis 5 and loosens sillar and other residues, high pressure water flushing wash clean is used in combination；
B, the 5 spray CF30 steel fibres of Rock Crane Rail Support present situation basis intended in 1 range of reinforced concrete native attached wall wall of construction are mixed
Solidifying soil forms concrete spray coating 8；
C, the drilling of prestress anchorage cable 2 is carried out 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；2 prestressed anchor cable of corresponding prestress anchorage cable 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 of formwork pouring reinforcement concrete 1；
F, 1 concrete strength of reinforced concrete native attached wall wall removes side form after reaching 75% design strength；
G, tensioning fixation passes through the prestress anchorage cable 2 of prestress anchorage cable guiding steel pipe 12；
H, 1 concrete strength of reinforced concrete native attached wall wall carries out upper part Rock Crane Rail Support 4 after reaching 100% design strength
Construction；
I. steel pipe 13 and the segmentation of 3 from-inner-to-outer of consolidation grouting hole are oriented to by consolidation grouting, divide ordered pair Rock Crane Rail Support existing
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 are poured, and the construction joint between storehouse surface is answered
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 3 work progress of consolidation grouting hole
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 (8)
1. a kind of crane beam on rock wall for underground power house present situation foundation reinforcing structure, it is characterised in that：It is hung in the palisades for having excavated formation
Reinforced concrete native attached wall wall (1) has been poured in bicycle beam present situation basic (5), and support has been poured above reinforced concrete native attached wall wall (1)
Rock Crane Rail Support (4) on the reinforced concrete native attached wall wall (1) top surface and Rock Crane Rail Support present situation basic (5)；
It is connected through attached wall wall top face joint bar (6) between the Rock Crane Rail Support (4) and reinforced concrete native attached wall wall (1)；
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
It states and is preset with connection reinforced concrete native attached wall wall (1) side and Rock Crane Rail Support present situation basis in reinforced concrete native attached wall wall (1)
(5) prestress anchorage cable is oriented to steel pipe (12)；After the prestress anchorage cable (2) passes through the prestress anchorage cable to be oriented to steel pipe (12)
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, 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 in the attached wall wall (1) of reinforced concrete and Rock Crane Rail Support (4) and be connected to 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) and is drilled with consolidating in Rock Crane Rail Support present situation basic (5)
Grout hole (3) position is tied to correspond to.
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
Knot grout hole (3) aperture is 56mm, and it is 4m~6m to enter rock depth, and array pitch is 2m~2.4m；It is filled in the consolidation grouting hole (3)
The slurries of slurry are configured using PO42.5R cement.
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, 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 reinforced concrete native attached wall wall (1) range is corresponded in wall crane girder present situation basic (5) forms coagulation
Native spray-up (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721547469.2U CN207659988U (en) | 2017-11-17 | 2017-11-17 | Crane beam on rock wall for underground power house present situation foundation reinforcing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721547469.2U CN207659988U (en) | 2017-11-17 | 2017-11-17 | Crane beam on rock wall for underground power house present situation foundation reinforcing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207659988U true CN207659988U (en) | 2018-07-27 |
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ID=62947088
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721547469.2U Active CN207659988U (en) | 2017-11-17 | 2017-11-17 | Crane beam on rock wall for underground power house present situation foundation reinforcing structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107724423A (en) * | 2017-11-17 | 2018-02-23 | 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 and its construction method |
-
2017
- 2017-11-17 CN CN201721547469.2U patent/CN207659988U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107724423A (en) * | 2017-11-17 | 2018-02-23 | 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 and its construction method |
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