CN105544481B - Water-conveyance tunnel steel lining bottom surface grouting arrangement and its method being in the milk - Google Patents
Water-conveyance tunnel steel lining bottom surface grouting arrangement and its method being in the milk Download PDFInfo
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- CN105544481B CN105544481B CN201610050986.2A CN201610050986A CN105544481B CN 105544481 B CN105544481 B CN 105544481B CN 201610050986 A CN201610050986 A CN 201610050986A CN 105544481 B CN105544481 B CN 105544481B
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- 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
- E02B9/02—Water-ways
- E02B9/06—Pressure galleries or pressure conduits; Galleries specially adapted to house pressure conduits; Means specially adapted for use therewith, e.g. housings, valves, gates
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
- E02D15/04—Placing concrete in mould-pipes, pile tubes, bore-holes or narrow shafts
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0023—Cast, i.e. in situ or in a mold or other formwork
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0004—Synthetics
- E02D2300/0006—Plastics
- E02D2300/0007—PVC
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0026—Metals
- E02D2300/0029—Steel; Iron
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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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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Mechanical Engineering (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The present invention relates to a kind of water-conveyance tunnel steel lining bottom surface grouting arrangement and its method being in the milk.It is directed to a kind of high water-conveyance tunnel steel lining bottom surface grouting arrangement of convenient, safe and reliable property and its method being in the milk, its built-in pipe quantity is few, and engineering cost is saved, and construction technology is simple, construction is not interfered with, the effect and quality of surface grouting can be improved.The technical scheme is that：Water-conveyance tunnel uses embedded steel liner structure, with concrete backfill between steel lining outer wall and country rock, steel lining outer wall sets one of stiffening ring every one section, stiffening ring alters slurry hole provided with some, the tunnel of surface grouting is needed using every 30~50m as a grout compartment, in each grout compartment, be close to steel lining bottom plate outer wall it is elongated lay pulp-inlet pipe and starch hole from altering on stiffening ring pass through；In each grout compartment, every 5~8m sets one to be vented and return pipe, and the slurry hole of altering that end 5~8m scopes of the exhaust and return pipe are set on floral tube section, floral tube Duan Juncong stiffening rings is passed through.
Description
Technical field
The present invention relates to a kind of water-conveyance tunnel steel lining bottom surface grouting arrangement and its method being in the milk, it is applicable
In Hydraulic and Hydro-Power Engineering.
Background technology
The water-conveyance tunnel of Hydraulic and Hydro-Power Engineering, in the case where running into extreme terrain or geological conditions, generally uses and buries
The steel liner structure design of formula, to reach the purposes such as carrying or antiseepage.To realize the sharing lood of steel lining and country rock, steel lining outer wall with
Concrete backfill is used between country rock, the load part that steel lining undertakes is passed into country rock.Meanwhile, resist to improve steel liner structure
The ability of stability of external pressure, generally sets stiffening ring, the general 1.0~1.5m of spacing in steel lining outer wall.To improve the backfill of concrete
Compaction rate, sets on stiffening ring and alters slurry hole.
From the point of view of current domestic average advanced construction level and most case histories, completion is poured in fill concrete
After 60 days, checked through tapping, phenomenon is come to nothing still more generally in steel lining bottom, and the region area that comes to nothing is more than 0.5~1.0m2
It is not within minority., it is necessary to carry out the surface grouting of steel lining bottom from the point of view of steel liner structure safety is ensured.Current surface grouting
Design generally has following several ways：
(1) steel lining bottom plate predetermined system surface grouting hole, the general 3.0m of spacing.This mode is useful in low-alloy steel (mark
Quasi- tensile strength is less than 540N/mm2) in, such as 16MnR, Q345 Hydraulic and Hydro-Power Engineering steel lining common steel.Due to the portion of coming to nothing
Position, quantity can not Accurate Prediction, therefore the identical property in reserved surface grouting hole and region of coming to nothing is poor, there is preformed hole position
Phenomenon that is closely knit and being come to nothing without preformed hole position, thus the effect in reserved surface grouting hole is not good, and due to system perforate,
Cause the later stage to block quantities greatly, add the probability that grouting hole plugging oozes (leakage) water, it is unfavorable to engineering safety.
(2) later stage is drilled with surface grouting hole.In view of the identical property of preformed hole is poor in aforesaid way (1), many engineering choosings
Later stage well cementing is selected, being useful in low-alloy steel, (standard pull tension intensity is less than 540N/mm2) in.Steel lining outer wall fill concrete
After completing 60 days, by tapping or other means check that bottom plate comes to nothing position, is drilled with into slurry using magnetic support electric drill on steel lining
Hole and steam vent, aperture are not less than 12mm, then carry out surface grouting.Although which can be targetedly to region of coming to nothing
It is in the milk, but when quantity of coming to nothing is more, its perforate, sealing of hole quantity are still more, are equally oozed there is also steel plate borehole sealing
The risk of leakage.When steel plate thickness is more than 30mm, bore diameter is generally enlarged to 20~24mm, to realize that surface grouting is made
Industry, but construction still acquires a certain degree of difficulty, and and steel plate thickness is bigger, and borehole sealing difficulty is also increased.In addition, when bore diameter is larger
When, there is certain weakening in itself to steel lining, and stiffening plate can not be set, therefore it is unfavorable to structure.
(3) bottom plate uses pre-buried surface grouting pipe.The applicability of this mode is not limited by steel strength, and high-strength steel is such as
600MPa grades, 800MPa grades of steel, to avoid welding stress and bead crack, typically not in perforate on steel lining, therefore
, then can only pre-buried surface grouting pipe in advance for the steel lining bottom plate of high-strength steel.Which is pre- every 2.0~3.0m along steel lining bottom plate
A grout box is buried, and 2~3 grout boxs are connected on a grout pipe, grout pipe draws fill concrete lift surface
Outside.Could be carried out after concreting completes 60 days because surface grouting needs etc., for guarantee construction speed, the contact filling of extraction
Slurry built-in pipe quantity is more, pipeline section is long, larger to construction interference, also uneconomical, and grouting effect is bad.
The content of the invention
The technical problem to be solved in the present invention is：For above-mentioned problem, a kind of convenient, safe and reliable property is proposed
High water-conveyance tunnel steel lining bottom surface grouting arrangement and its method being in the milk, its built-in pipe quantity are few, engineering cost
With saving, construction technology simply, does not interfere with to construction, the effect and quality of surface grouting can be improved, with obvious engineering
Benefit.
The technical solution adopted in the present invention is：A kind of water-conveyance tunnel steel lining bottom surface grouting arrangement, it is described defeated
Water tunnel uses embedded steel liner structure, and with concrete backfill between steel lining outer wall and country rock, the steel lining outer wall is every one
Section sets one of stiffening ring, and stiffening ring alters slurry hole provided with some, it is characterised in that：Need the tunnel of surface grouting with every 30~
50m is to be close to that steel lining bottom plate outer wall is elongated to lay pulp-inlet pipe and from altering on stiffening ring in grout compartment, each grout compartment
Slurry hole is passed through；In each grout compartment, every 5~8m sets end 5~8m models of an exhaust and return pipe, the exhaust and return pipe
The slurry hole of altering being set on floral tube section, floral tube Duan Juncong stiffening rings is enclosed to pass through.
Preformed hole is provided with the steel lining bottom plate, each preformed hole corresponds to the tail end of every exhaust and return pipe.
The pulp-inlet pipe is managed for the FUKO of pvc material；The exhaust and return pipe are using the seamless of 25~Φ of Φ 32
Steel pipe.
A kind of method that water-conveyance tunnel steel lining bottom surface grouting arrangement is in the milk, including step：
1st, pulp-inlet pipe is embedded：It is in a grout compartment, each grout compartment, to be close to steel lining bottom plate outer wall and lead to take 30~50m
It is long to lay pulp-inlet pipe, pulp-inlet pipe from stiffening ring bottom alter slurry hole in pass through；
2nd, it is vented the embedded of simultaneous return pipe：In each grout compartment, every 5~8m sets one to be vented and return pipe, and end 5~
8m is floral tube section, and floral tube section is passed through from altering for stiffening ring bottom in slurry hole；The floral tube section at least sets a Φ every 50cm
8mm drilling, drilling hole position upward and is arranged point-blank；
3rd, the extraction of built-in pipe：For high-strength steel lining, pulp-inlet pipe and exhaust and return pipe are drawn from nearest free face.
The method that another water-conveyance tunnel steel lining bottom surface grouting arrangement of the present invention is in the milk, including step：
1st, for low-alloy steel lining, take 30~50m for grout compartment, in each grout compartment, on steel lining bottom plate every 5~
8m opens up a preformed hole, and sets plug and closure to fill in reserved aperture；
2nd, pulp-inlet pipe is embedded：In each grout compartment, be close to that steel lining bottom plate outer wall is elongated to lay pulp-inlet pipe, pulp-inlet pipe from
Altering for stiffening ring bottom is passed through in slurry hole；
3rd, it is vented the embedded of simultaneous return pipe：In each grout compartment, every 5~8m sets one to be vented and return pipe, and end 5~
8m is set to floral tube section, and floral tube section is passed through from altering for stiffening ring bottom in slurry hole, the tail end alignment preformed hole of floral tube section；The floral tube
Section at least sets Φ 8mm drilling every 50cm, and drilling hole position upward and is arranged point-blank；
4th, the extraction of built-in pipe：In each grout compartment, the exhaust and return pipe are drawn from corresponding preformed hole (1-1),
And pulp-inlet pipe is only drawn from the preformed hole of most termination, after grouting is finished, the pipe laying of extraction is cut off, and preformed hole is blocked
Welding.
The beneficial effects of the invention are as follows：The steel lining bottom surface grouting design of the present invention, although still fall within that system is pre-buried to be connect
The mode of grout pipe is touched, but larger change has been carried out in terms of pulp-inlet pipe, exhaust and return pipe pattern and built-in pipe lead-out mode
Kind, its advantage is embodied in the following aspects：1st, solving low-alloy steel, (standard pull tension intensity is less than 540N/mm2) steel
The reserved surface grouting hole mode of lining does not have targetedly drawback, and the position that can be come to nothing to every place is effectively in the milk；2nd, improve
(standard pull tension intensity is less than 540N/mm to low-alloy steel2) steel lining later stage well cementing mode may caused by sealing of hole quantity it is excessive,
The larger security hidden trouble of risk of leakage；3rd, using special pulp-inlet pipe, continuous, multiple spot pulp can be realized, and it is mixed in backfill
When solidifying soil is poured, grout outlet will not be plugged；The pulp-inlet pipe position that can not only be come to nothing to steel lining bottom plate carries out effective surface grouting,
It is closely knit also filling to be carried out to the fine gap between steel lining and fill concrete simultaneously；Due to being multiple spot pulp, therefore contact
Grouting will not be influenceed by cavity discontinuity；4th, it is vented and return pipe uses step-by-step arrangement, and is close to position with steel lining outer wall
Floral tube form is set to, therefore with the function of segmentation exhaust；Though the stiffening ring of embedded outer wall of steel pipe alters slurry hole, also very
It is difficult to ensure that card comes to nothing the continuity in region；The floral tube form of segmentation exhaust is employed, in surface grouting, cavity can be excluded completely
Interior gas, it is highly beneficial to improving Grouted density；5th, built-in pipe quantity of the invention is few, and engineering cost is saved, construction technology
Simply, construction is not interfered with, and greatly improves the effect and quality of surface grouting, with obvious project benefit.
Brief description of the drawings
Fig. 1 is cross-section cutaway view of the invention.
Fig. 2 starches the partial enlarged drawing of hole portion to be altered in the present invention.
Fig. 3 is the A-A profiles of high-strength steel steel lining in invention.
Fig. 4 is the A-A profiles of invention middle-low alloy steel steel lining.
Embodiment
According to low-alloy steel, (standard pull tension intensity is less than 540N/mm to the present embodiment2) characteristic of material between high-strength steel,
Following low-alloy steel can perforate, the principle of high-strength steel not perforate, the surface grouting design of progress water-conveyance tunnel steel lining bottom.
As shown in Figure 1 and Figure 2, the present embodiment is a kind of water-conveyance tunnel steel lining bottom surface grouting arrangement, water-conveyance tunnel
Using embedded steel liner structure, with concrete backfill between the outer wall of steel lining 1 and country rock, the outer wall of steel lining 1 sets one every one section
Road stiffening ring 2, stiffening ring alters slurry hole 3 provided with some, needs the tunnel of surface grouting using every 30~50m as a grout compartment, often
In individual grout compartment, it is close to elongated pulp-inlet pipe (the FUKO pipes of pvc material) 4 that lay of the bottom plate outer wall of steel lining 1 simultaneously from stiffening ring
Slurry hole 3 of altering on 2 is passed through；In each grout compartment, every 5~8m sets the end of an exhaust and return pipe 5, the exhaust and return pipe
The slurry hole 3 of altering that portion's 5~8m scopes are set on floral tube section 5-1, floral tube Duan Juncong stiffening rings 2 is passed through.
Embodiment one,
As shown in figure 3, steel lining 1 is high-strength steel steel lining, specific implementation step is as follows：
1st, pulp-inlet pipe 4 is embedded：Take 30~50m (can be controlled very well with grouting pressure and grouting quality for a grout compartment
It is made as standard), in each grout compartment, it is close to that the bottom plate outer wall of steel lining 1 is elongated to lay pulp-inlet pipe 4, pulp-inlet pipe is from the bottom of stiffening ring 2
Alter and passed through in slurry hole 3；Pulp-inlet pipe 4 does not use conventional seamless steel pipe, and select to use has sale and in some water power on the market
Used in engineering of standing it is a kind of can pulp and can only special grout pipe (such as FUKO of the pulp without entering slurry along whole tube section
Pipe) material；
2nd, it is vented the embedded of simultaneous return pipe 5：Consideration should ensure the quality of surface grouting, reduce the number of pipe laying as far as possible again
In amount, each grout compartment, every 5~8m sets an exhaust and return pipe 5, and 5~8m of end is floral tube section 5-1, floral tube Duan Congjia
Altering for the bottom of strength ring 2 is passed through in slurry hole 3, is close to steel lining outer wall arrangement and fixed, the remaining pipeline section of exhaust and return pipe 5 is then
Pass through from the outside of stiffening ring 2 and (should not alter and be passed through in slurry hole from stiffening ring, slurry effect is altered in otherwise influence)；Floral tube section 5-1 is at least
Every 50cm, one Φ 8mm drilling (i.e. per the floral tube section between twice stiffening ring 2 at least provided with a drilling), drilling are set
Hole position upward and is arranged point-blank；
3rd, the extraction of built-in pipe：For high-strength steel lining, because steel lining does not allow perforate, pulp-inlet pipe 4 and exhaust and return pipe 5
Drawn from nearest free face, it is generally the case that Hydraulic and Hydro-Power Engineering water-conveyance tunnel is general using the steel lining hole section of high-strength steel
It is shorter, therefore the extraction length of built-in pipe will not be oversize, and grouting and exhaust effect are not influenceed substantially.
Embodiment two,
As shown in figure 4, steel lining is low-alloy steel steel lining, specific implementation step is as follows：
1st, for low-alloy steel lining, (standard pull tension intensity is less than 540N/mm2), it is grout compartment (to fill to take 30~50m
Slurry pressure and grouting quality can control to be defined very well), due to steel lining 1 can perforate, in each grout compartment, on the bottom plate of steel lining 1
A preformed hole 1-1 is opened up every 5~8m, and (preformed hole 1-1 apertures can refer to solid in reserved aperture setting plug and closure plug
Tie grout hole and the components such as plug, closure plug are set)；
2nd, pulp-inlet pipe 4 is embedded：In each grout compartment, it is close to that the bottom plate outer wall of steel lining 1 is elongated to lay pulp-inlet pipe 4, pulp-inlet pipe
Passed through from altering for the bottom of stiffening ring 2 in slurry hole 3；
3rd, it is vented the embedded of simultaneous return pipe 5：Consideration should ensure the quality of surface grouting, reduce the number of pipe laying as far as possible again
Amount, in each grout compartment, every 5~8m sets an exhaust and return pipe 5, and 5~8m of end is set to floral tube section 5-1, floral tube section from
Altering for the bottom of stiffening ring 2 is passed through in slurry hole 3, the tail end alignment preformed hole 1-1 of floral tube section；Floral tube section at least sets one every 50cm
Individual Φ 8mm drilling, drilling hole position upward and is arranged point-blank；
4th, the extraction of built-in pipe：In each grout compartment, the exhaust and return pipe 5 are drawn from corresponding preformed hole 1-1, and
Pulp-inlet pipe 4 is only drawn from the preformed hole 1-1 of most termination, after grouting is finished, cuts off the pipe laying of extraction, and preformed hole is sealed
Stifled welding.
The exhaust of above-described embodiment and return pipe 5 use 25~Φ of Φ 32 seamless steel pipe.
Claims (2)
1. a kind of construction method of water-conveyance tunnel steel lining bottom surface grouting arrangement, the water-conveyance tunnel is using embedded
Steel liner structure, steel lining (1) is with concrete backfill between outer wall and country rock, and steel lining (1) outer wall is set every one section to be added together
Strength ring (2), stiffening ring alters slurry hole (3) provided with some, it is characterised in that：The tunnel of surface grouting is needed using every 30~50m as one
In individual grout compartment, each grout compartment, it is close to that steel lining (1) bottom plate outer wall is elongated to lay pulp-inlet pipe (4) and from stiffening ring (2)
Slurry hole (3) is altered to pass through；In each grout compartment, every 5~8m sets the end of an exhaust and return pipe (5), the exhaust and return pipe
Slurry hole (3) of altering that portion's 5~8m scopes are set on floral tube section (5-1), floral tube Duan Juncong stiffening rings (2) is passed through；
The pulp-inlet pipe (4) is managed for the FUKO of pvc material；The exhaust and return pipe (5) use 25~Φ of Φ 32 nothing
Stitch steel pipe；
This construction method includes step：
Step 1: pulp-inlet pipe (4) is embedded：It is in a grout compartment, each grout compartment, to be close to steel lining (1) bottom plate to take 30~50m
Outer wall is elongated to lay pulp-inlet pipe (4), and pulp-inlet pipe is passed through from altering for stiffening ring (2) bottom in slurry hole (3)；
Step 2: the simultaneous return pipe (5) of exhaust is embedded：In each grout compartment, every 5~8m sets an exhaust and return pipe (5),
5~8m of end is floral tube section (5-1), and floral tube section is passed through from altering for stiffening ring (2) bottom in slurry hole (3)；The floral tube section (5-1)
One Φ 8mm drilling is at least set every 50cm, and drilling hole position upward and is arranged point-blank；
Step 3: the extraction of built-in pipe：For high-strength steel lining, pulp-inlet pipe (4) and exhaust and return pipe (5) face sky from nearest
Draw in face.
2. a kind of construction method of water-conveyance tunnel steel lining bottom surface grouting arrangement, the water-conveyance tunnel is using embedded
Steel liner structure, steel lining (1) is with concrete backfill between outer wall and country rock, and steel lining (1) outer wall is set every one section to be added together
Strength ring (2), stiffening ring alters slurry hole (3) provided with some, it is characterised in that：The tunnel of surface grouting is needed using every 30~50m as one
In individual grout compartment, each grout compartment, it is close to that steel lining (1) bottom plate outer wall is elongated to lay pulp-inlet pipe (4) and from stiffening ring (2)
Slurry hole (3) is altered to pass through；In each grout compartment, every 5~8m sets the end of an exhaust and return pipe (5), the exhaust and return pipe
Slurry hole (3) of altering that portion's 5~8m scopes are set on floral tube section (5-1), floral tube Duan Juncong stiffening rings (2) is passed through；
Preformed hole (1-1) is provided with steel lining (1) bottom plate, each preformed hole corresponds to the tail of every exhaust and return pipe (5)
End；
The pulp-inlet pipe (4) is managed for the FUKO of pvc material；The exhaust and return pipe (5) use 25~Φ of Φ 32 nothing
Stitch steel pipe；
This construction method includes step：
Step 1: for low-alloy steel lining, it is to take 30~50m in a grout compartment, each grout compartment, on steel lining (1) bottom plate often
A preformed hole (1-1) is opened up every 5~8m, and sets plug and closure to fill in reserved aperture；
Step 2: pulp-inlet pipe (4) is embedded：In each grout compartment, it is close to that steel lining (1) bottom plate outer wall is elongated to lay pulp-inlet pipe (4),
Pulp-inlet pipe is passed through from altering for stiffening ring (2) bottom in slurry hole (3)；
Step 3: the simultaneous return pipe (5) of exhaust is embedded：In each grout compartment, every 5~8m sets an exhaust and return pipe (5),
5~8m of end is set to floral tube section (5-1), and floral tube section is passed through from altering for stiffening ring (2) bottom in slurry hole (3), the tail end of floral tube section
It is directed at preformed hole (1-1)；Floral tube section at least sets Φ 8mm drilling every 50cm, and drilling hole position is upward and cloth
Put point-blank；
Step 4: the extraction of built-in pipe：In each grout compartment, the exhaust and return pipe (5) draw from corresponding preformed hole (1-1)
Go out, and pulp-inlet pipe (4) is only drawn from the preformed hole (1-1) of most termination, after grouting is finished, cuts off the pipe laying of extraction, and to pre-
Box out and carry out closure welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610050986.2A CN105544481B (en) | 2016-01-26 | 2016-01-26 | Water-conveyance tunnel steel lining bottom surface grouting arrangement and its method being in the milk |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610050986.2A CN105544481B (en) | 2016-01-26 | 2016-01-26 | Water-conveyance tunnel steel lining bottom surface grouting arrangement and its method being in the milk |
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| CN105544481B true CN105544481B (en) | 2017-07-28 |
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| CN109235391A (en) * | 2018-11-01 | 2019-01-18 | 中国电建集团成都勘测设计研究院有限公司 | The surface grouting structure of diversion outlet closuring concrete |
| CN111666618B (en) * | 2020-05-27 | 2023-04-28 | 中国电建集团中南勘测设计研究院有限公司 | Design method of side water inlet and outlet diffusion section body type |
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| CN202181542U (en) * | 2011-07-04 | 2012-04-04 | 中国水电顾问集团华东勘测设计研究院 | Front-back local steel liner structure for gate slot of diversion tunnel |
| CN203890981U (en) * | 2014-05-26 | 2014-10-22 | 中国水电顾问集团贵阳勘测设计研究院有限公司 | Hydraulic tunnel structure |
| CN204456024U (en) * | 2015-01-06 | 2015-07-08 | 中国电建集团华东勘测设计研究院有限公司 | For the grounding apparatus of power station water-conveyance tunnel steel lining section |
| CN205399361U (en) * | 2016-01-26 | 2016-07-27 | 中国电建集团华东勘测设计研究院有限公司 | Water delivery tunnel steel lining bottom contact arrangement structure that is in milk |
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