CN104863096A - Overlay construction method for repairing aged asphalt concrete seepage-prevention face plate - Google Patents
Overlay construction method for repairing aged asphalt concrete seepage-prevention face plate Download PDFInfo
- Publication number
- CN104863096A CN104863096A CN201510278072.7A CN201510278072A CN104863096A CN 104863096 A CN104863096 A CN 104863096A CN 201510278072 A CN201510278072 A CN 201510278072A CN 104863096 A CN104863096 A CN 104863096A
- Authority
- CN
- China
- Prior art keywords
- concrete
- asphalt concrete
- toe board
- seepage
- face slab
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Revetment (AREA)
Abstract
The invention relates to an overlay construction method for repairing an aged asphalt concrete seepage-prevention face plate. The overlay construction method for repairing the aged asphalt concrete seepage-prevention face plate is quick and convenient to construct and low in investment, disturbance damage of a dam body is decreased, and the safety and reliability of engineering operation are improved. According to the technical scheme, the dam body is sequentially provided with a rock pile body, a transition layer and a cushion layer, a leveling adhesion layer is laid on the cushion layer, the aged asphalt concrete face plate is laid on the adhesion layer, and a bottom triangle is formed between the leveling adhesion layer and the aged asphalt concrete face plate. A concrete cover plate is arranged at the front end of the bottom triangle, and a seepage-prevention wall is vertically arranged under the concrete cover plate. The overlay construction method comprises the following steps of (a) surface cleaning and joint filling, (b) glass fiber geogrid laying, (c) copper waterstop embedding, (d) concrete toe board casting, (e) consolidation grouting, (f) concrete connection plate casting, (g) new concrete face plate casting and (h) surface layer water stop construction.
Description
Technical field
The overlay construction method of the present invention and the aging repairing of a kind of asphalt concrete anti-seepage panel, be mainly applicable to asphalt concrete anti-seepage panel aging after the similar engineering such as repairing.
Background technology
China starts the face slab for water retaining adopting bituminous concrete as earth and rockfill dam in early 1970s, experienced by nearly 40 years so far; The achievement in research aging according to domestic and international bituminous concrete: after asphalt concrete anti-seepage panel runs 15 years, all there will be aging phenomenon in various degree; After operation was more than 30 years, the aging physical and mechanical property of material that causes of asphalt concrete seepage prevention layer reduces greatly, has a strong impact on the safe operation of engineering, needs to take engineering measure to repair.The a collection of bitumen concrete faced rockfill dam that China builds the beginning of the eighties at the end of the seventies has run more than 30 years, and the aging asphalt concrete face slab that causes of pitch loses antiseepage function substantially, urgently repairs.Repairing experience after aging according to German bituminous concrete, it adopts grater that thick for top layer 3 ~ 5cm aging bituminous concrete is ground, removed, and backfills fresh asphalt concrete material and grinding compacting; The method has certain practicality, and adopts in national several engineerings such as Europe, but the method be mainly applicable to run the time limit within 20 years, engineering that asphalt concrete face slab degree of aging is controlled.The method for repairing and mending of the asphalt concrete face slab seepage control project employing that China's part was run more than 30 years is removed by protobitumen concrete slab, and concreting panel is as the impervious body of dam again.
The method that the countries such as above method for repairing and mending all has some limitations, Europe adopt mainly is applicable to run the engineering that the time limit is short, asphalt concrete face slab degree of aging is controlled; And the method for repairing and mending construction that China part engineering adopts is complicated, investment is large and in the former impervious body process of dismounting, can produce interference greatly to the completed dam body of former sedimentation and destroy, affect the repair efficiency of engineering.
Summary of the invention
The technical problem to be solved in the present invention is: for above-mentioned Problems existing, the overlay construction method of the aging repairing of a kind of asphalt concrete anti-seepage panel is provided, to construct convenient, small investment, reduce and the disturbance of dam body is destroyed, the safety and reliability that enhancement engineering runs, has a good application prospect.
The technical solution adopted in the present invention is: the overlay construction method of the aging repairing of a kind of asphalt concrete anti-seepage panel, dam body from bottom to top has rockfill, transition zone, bed course successively, leveling glued layer is equipped with above described bed course, this glued layer top is equipped with old asphalt concrete face slab, and forms bottom triangle body between leveling glued layer and old asphalt concrete face slab; Triangle body front end, described bottom is furnished with concrete cover, is vertically provided with impervious wall, is primarily characterized in that and comprises the following steps below this concrete cover:
A. clear table and joint filling: chap because of aging seriously and be about to the pitch thin layer that comes off in the surface of first removing old asphalt concrete face slab, the crack adopting the cement mortar of M20 to backfill again to cause because of aging in leveling glued layer, old asphalt concrete face slab and bottom triangle body, pocket, and constuction joint Yin Wendu, be out of shape the seam face that causes and open and split and the V-type channel-shaped structure that formed, and guarantee that the cement sand pulp backfilled is concordant with the surface of old asphalt concrete face slab, the quality mixture ratio of cement mortar is cement: river sand: water=1:4:0.85;
B. the laying of earth grille: lay earth grille on the surface of old asphalt concrete face slab and simply fix;
C. the burying underground of Copper water stop: the Copper water stop burying F type, W type and compromise joint above earth grille underground;
D. the building of concrete toe board: the concrete cover of incorporation engineering design in early stage arranges concrete toe board, and lays earth grille at the horizontal position that this toe board contacts with concrete cover;
E. consolidation grouting: consolidation grouting process is carried out to the position below construction and excavation basifacial impervious wall front end to concrete toe board;
F. the building of concrete junction plate: when the seepage control project for the old asphalt concrete face slab that there is ogee section at position, riverbed is repaired, the concrete junction plate with old asphalt concrete face slab with identical anti-arc radius need be designed, the upper surface of this junction plate and the smooth connection of concrete toe board upper surface;
G. the building of as placed concrete panel: it is consistent with the gradient of old asphalt concrete face slab and have the as placed concrete panel of identical dam body to build cross fall, and the thickness of this as placed concrete panel is identical with the thickness of concrete junction plate;
H. surface watertight seal construction: lay the closely knit SR plastic filler of one deck at the upper surface of concrete junction plate and as placed concrete panel; and lay antiseepage protective cover sheet on the top layer of SR plastic filler, finally adopt band steel/angle steel and bolt to carry out anchoring to antiseepage protective cover sheet according to specification and design related request.
The width d of described concrete toe board
2be greater than its thickness d
3, for the engineering of below height of dam 50m, the thickness d of concrete toe board
3=1 ~ 3m, width d
2=2 ~ 3m, for the engineering of height of dam 50 ~ 70m, the thickness d of concrete toe board
3=2 ~ 4m, width d
2=2 ~ 4m.
Described consolidation grouting adopts quincuncial arrangement, and grout penetration is 5 ~ 8m, and the spacing of grouting is 1.5 ~ 2.5m, array pitch is 2 ~ 3m.
For the engineering of below height of dam 50m, the thickness d of as placed concrete panel
1=30 ~ 50m; For the engineering of height of dam 50 ~ 70m, the thickness d of as placed concrete panel
1=40 ~ 60m.
The invention has the beneficial effects as follows: 1, safety: this method for repairing and mending decreases cutting old asphalt concrete face slab, avoid in the process of cutting, sedimentation is completed rockfill, transition zone, bed course disturbance destroy, thus reduce and build the destructions such as crack that as placed concrete panel brings because of sedimentation and deformation, ensure that the safety of engineering operation; 2, reliability: earth grille is arranged between old asphalt concrete face slab and as placed concrete panel, serves the effect of transition anticracking well, extends the life-span of watertight facing after repairing, makes this method for repairing and mending have stronger reliability; 3, economy: this method for repairing and mending avoids cutting old asphalt concrete face slab, has saved engineering quantity greatly, makes this method for repairing and mending have good economy; 4, practicality: this method for repairing and mending is simple to operate, convenient construction, does not need special engineering equipment, has stronger practicality.
Accompanying drawing explanation
Fig. 1 is generalized section of the present invention.
Detailed description of the invention
As shown in Figure 1, the present embodiment is the overlay construction method of the aging repairing of a kind of asphalt concrete anti-seepage panel, dam body from bottom to top has rockfill 101 successively, transition zone 102, bed course 103, and sedimentation decades, distortion completes substantially, leveling glued layer 104 is equipped with above bed course 103, leveling glued layer 104 top is equipped with old asphalt concrete face slab 106, bottom triangle body 105 is defined between leveling glued layer 104 and old asphalt concrete face slab 106, concrete cover 107 is furnished with in this triangle body front end, impervious wall 108 is vertically provided with below this concrete cover, in the present embodiment, above old asphalt concrete face slab 106, be equipped with earth grille 1, Copper water stop 2, as placed concrete panel 6, SR plastic filler 7 and antiseepage protective cover sheet 8 successively.
The concrete implementation step of the present embodiment is as follows:
A. clear table and joint filling: chap because of aging seriously and be about to the pitch thin layer that comes off in the surface that namely clear table removes old asphalt concrete face slab 106, namely joint filling adopts the cement mortar of M20 to backfill leveling glued layer 104, old asphalt concrete face slab 106, the crack caused because of aging in bottom triangle body 105, pocket, and the seam face that causes such as constuction joint Yin Wendu, distortion is opened and split and the V-type channel-shaped structure that formed, and guarantee that the cement sand pulp backfilled is concordant with the surface of old asphalt concrete face slab; The match ratio (mass ratio) of cement mortar is cement: river sand: water=1:4:0.85;
B. the laying of earth grille 1: lay earth grille 1 on the surface of old asphalt concrete face slab 106 and simply fix, occurring slippage and accumulation when building to avoid the as placed concrete panel 6 on top; The setting of earth grille 1 mainly plays a transition role, to prevent the crack of as placed concrete panel 6, therefore also Anti-crack layer is, because earth grille 1 has interlock action, mutually wrapped up by the pellet in grid mesh in roller compaction process, interlocking, as placed concrete panel 6 above organically can be combined with old asphalt concrete face slab 106 below, make top, entirety that bonding surface, three kinds, bottom material form a upper and lower interlocking, thus add the stability against sliding of concrete slab; In addition, once crack appears in concrete slab, earth grille 1 effectively can reduce the tensile stress at crack place, thus improves the stress condition of concrete slab local, avoids the expansion etc. in crack;
C. the burying underground of Copper water stop 2: according to specification and associated construction technical requirements, buries the Copper water stop 2 of F type, W type and compromise joint underground, should protect the Copper water stop 2 buried underground above earth grille 1, to prevent from bending, damaged etc.;
D. the building of concrete toe board 3: the concrete cover 107 combining design in early stage arranges concrete toe board 3, and lays earth grille 1 at the horizontal position that concrete cover 107 contacts with concrete toe board 3, generally, the width d of concrete toe board 3
2be greater than its thickness d
3; Through stressed computational analysis, for the engineering of below height of dam 50m, the thickness d of concrete toe board 3
3=1 ~ 3m, width d
2=2 ~ 3m, for the engineering of height of dam 50 ~ 70m, the thickness d of concrete toe board 3
3=2 ~ 4m, width d
2=2 ~ 4m;
E. consolidation grouting 4: because impervious wall 108 is positioned at construction and excavation basifacial, in order to prevent causing the damage of impervious wall 108 in work progress or break, carry out consolidation grouting 4 to impervious wall 108 front end to concrete toe board 3 lower portion to process, consolidation grouting 4 degree of depth 5 ~ 8m is advisable, the spacing of grouting is 1.5 ~ 2.5m, array pitch is 2 ~ 3m, adopts blossom type to arrange;
F. the building of concrete junction plate 5: when the seepage control project for the old asphalt concrete face slab 106 that there is ogee section at position, riverbed is repaired, concrete junction plate 5 need be designed, concentrate with the stress alleviated bottom as placed concrete panel 6, for ease of construction, ensure concrete junction plate 5 uniform force, this junction plate adopts the anti-arc radius identical with old asphalt concrete face slab 106, and the upper surface of the upper surface of this junction plate and concrete toe board 3 links up smoothly;
G. the building of as placed concrete panel 6: it is consistent with old asphalt concrete face slab 106 and have the as placed concrete panel 6 of identical dam body to build cross fall, and the thickness of as placed concrete panel 6 is identical with the thickness of concrete junction plate 5; The thickness d of as placed concrete panel 6
1value should be determined according to height of dam, generally, for the engineering of below height of dam 50m, and d
1=30 ~ 50m; For the engineering of height of dam 50 ~ 70m, d
1=40 ~ 60m; Due to rockfill 101, transition zone 102, bed course 103 sedimentation decades, distortion completes substantially, therefore, can not cause the crack of as placed concrete panel 6 because of distortion;
H. surface watertight seal construction: lay the closely knit SR plastic filler 7 of one deck at concrete junction plate 5 and the upper surface of as placed concrete panel 6; and lay antiseepage protective cover sheet 8 on the top layer of SR plastic filler 7, finally adopt band steel/angle steel and bolt to carry out anchoring to antiseepage protective cover sheet 8 according to specification and design related request.
Claims (4)
1. the overlay construction method of the aging repairing of asphalt concrete anti-seepage panel, dam body from bottom to top has rockfill (101), transition zone (102) and bed course (103) successively, described bed course (103) top is equipped with leveling glued layer (104), this glued layer top is equipped with old asphalt concrete face slab (106), and forms bottom triangle body (105) between leveling glued layer (104) and old asphalt concrete face slab (106); Triangle body (105) front end, described bottom is furnished with concrete cover (107), is vertically provided with impervious wall (108), is primarily characterized in that and comprises the following steps below this concrete cover:
A. clear table and joint filling: chap because of aging seriously and be about to the pitch thin layer that comes off in the surface of first removing old asphalt concrete face slab (106), adopt cement mortar backfill leveling glued layer (104) of M20 again, because of the aging crack caused in old asphalt concrete face slab (106) and bottom triangle body (105), pocket, and constuction joint Yin Wendu, be out of shape the seam face that causes to open and split and the V-type channel-shaped structure that formed, and guarantee that the cement sand pulp backfilled is concordant with the surface of old asphalt concrete face slab (106), the quality mixture ratio of cement mortar is cement: river sand: water=1:4:0.85,
B. the laying of earth grille (1): lay earth grille (1) simply fixing on the surface of old asphalt concrete face slab (106);
C. the burying underground of Copper water stop (2): the Copper water stop (2) burying F type, W type and compromise joint in the top of earth grille (1) underground;
D. the building of concrete toe board (3): the concrete cover (107) of incorporation engineering design in early stage arranges concrete toe board (3), and lays earth grille (1) at the horizontal position that this toe board contacts with concrete cover (107);
E. consolidation grouting (4): consolidation grouting (4) process is carried out to the position of the basifacial impervious wall of construction and excavation (108) front end to concrete toe board (3) below;
F. the building of concrete junction plate (5): when the seepage control project for the old asphalt concrete face slab (106) that there is ogee section at position, riverbed is repaired, the concrete junction plate (5) with old asphalt concrete face slab (106) with identical anti-arc radius need be designed, the upper surface of this junction plate and the smooth connection of concrete toe board (3) upper surface;
G. the building of as placed concrete panel (6): it is consistent with the gradient of old asphalt concrete face slab (106) and have the as placed concrete panel (6) of identical dam body to build cross fall, and the thickness of this as placed concrete panel is identical with the thickness of concrete junction plate (5);
H. surface watertight seal construction: lay the closely knit SR plastic filler (7) of one deck at concrete junction plate (5) and the upper surface of as placed concrete panel (6); and lay antiseepage protective cover sheet (8) on the top layer of SR plastic filler (7), finally adopt band steel or angle steel and bolt to carry out anchoring to antiseepage protective cover sheet (8) according to design specifications.
2. the overlay construction method of the aging repairing of a kind of asphalt concrete anti-seepage panel according to claim 1, is characterized in that: the width d of described concrete toe board (3)
2be greater than its thickness d
3, for the engineering of below height of dam 50m, the thickness d of concrete toe board (3)
3=1 ~ 3m, width d
2=2 ~ 3m, for the engineering of height of dam 50 ~ 70m, the thickness d of concrete toe board (3)
3=2 ~ 4m, width d
2=2 ~ 4m.
3. the overlay construction method of the aging repairing of a kind of asphalt concrete anti-seepage panel according to claim 1, it is characterized in that: described consolidation grouting (4) adopts quincuncial arrangement, grout penetration is 5 ~ 8m, and the spacing of grouting is 1.5 ~ 2.5m, array pitch is 2 ~ 3m.
4. the overlay construction method of the aging repairing of a kind of asphalt concrete anti-seepage panel according to claim 1, is characterized in that: for the engineering of below height of dam 50m, the thickness d of as placed concrete panel (6)
1=30 ~ 50m; For the engineering of height of dam 50 ~ 70m, the thickness d of as placed concrete panel (6)
1=40 ~ 60m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510278072.7A CN104863096B (en) | 2015-05-27 | 2015-05-27 | A kind of overlay construction method of the aging repairing of asphalt concrete anti-seepage panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510278072.7A CN104863096B (en) | 2015-05-27 | 2015-05-27 | A kind of overlay construction method of the aging repairing of asphalt concrete anti-seepage panel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104863096A true CN104863096A (en) | 2015-08-26 |
| CN104863096B CN104863096B (en) | 2017-01-04 |
Family
ID=53909236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510278072.7A Active CN104863096B (en) | 2015-05-27 | 2015-05-27 | A kind of overlay construction method of the aging repairing of asphalt concrete anti-seepage panel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104863096B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105484205A (en) * | 2015-12-31 | 2016-04-13 | 长江勘测规划设计研究有限责任公司 | Cover plate water-sealing structure for reconstructed dam heel of concrete impermeable panel and construction method thereof |
| CN105648984A (en) * | 2016-01-07 | 2016-06-08 | 中国电建集团华东勘测设计研究院有限公司 | Repair structure for concrete panel buckling damage and construction method |
| CN106958257A (en) * | 2017-04-28 | 2017-07-18 | 中国电建集团贵阳勘测设计研究院有限公司 | It is a kind of to prevent the construction method and structure of plinth of concrete facing dam differential settlement |
| CN114718021A (en) * | 2022-05-10 | 2022-07-08 | 长江勘测规划设计研究有限责任公司 | Construction method for rapidly reconstructing upstream dam face seepage-proofing body structure of stone-laying dam |
| CN115404820A (en) * | 2022-09-05 | 2022-11-29 | 中国电建集团华东勘测设计研究院有限公司 | Asphalt concrete panel rock-fill dam arrangement structure and construction method |
| CN115492052A (en) * | 2022-09-29 | 2022-12-20 | 中国水电建设集团十五工程局有限公司 | Seepage-proofing reinforcing treatment method for small reservoir homogeneous dam body |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103122627A (en) * | 2013-03-20 | 2013-05-29 | 大连理工大学 | Impervious face slab anti-seismic structure of concrete rock-fill dam and construction method thereof |
| CN103233446A (en) * | 2013-04-03 | 2013-08-07 | 合肥工业大学 | Composite panel earth and rockfill dam and anti-seepage body construction method |
| CN203129096U (en) * | 2013-03-21 | 2013-08-14 | 大连理工大学 | Anti-seepage face slab aseismic structure for concrete rock-fill dam |
| CN204343251U (en) * | 2014-12-04 | 2015-05-20 | 中国电建集团贵阳勘测设计研究院有限公司 | Horizontal connection structure between a kind of concrete cut and concrete structure |
| JP2015166530A (en) * | 2014-03-04 | 2015-09-24 | 今仁 和武 | Breakwater for adsorbing radioactive substance |
-
2015
- 2015-05-27 CN CN201510278072.7A patent/CN104863096B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103122627A (en) * | 2013-03-20 | 2013-05-29 | 大连理工大学 | Impervious face slab anti-seismic structure of concrete rock-fill dam and construction method thereof |
| CN203129096U (en) * | 2013-03-21 | 2013-08-14 | 大连理工大学 | Anti-seepage face slab aseismic structure for concrete rock-fill dam |
| CN103233446A (en) * | 2013-04-03 | 2013-08-07 | 合肥工业大学 | Composite panel earth and rockfill dam and anti-seepage body construction method |
| JP2015166530A (en) * | 2014-03-04 | 2015-09-24 | 今仁 和武 | Breakwater for adsorbing radioactive substance |
| CN204343251U (en) * | 2014-12-04 | 2015-05-20 | 中国电建集团贵阳勘测设计研究院有限公司 | Horizontal connection structure between a kind of concrete cut and concrete structure |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105484205A (en) * | 2015-12-31 | 2016-04-13 | 长江勘测规划设计研究有限责任公司 | Cover plate water-sealing structure for reconstructed dam heel of concrete impermeable panel and construction method thereof |
| CN105484205B (en) * | 2015-12-31 | 2018-03-30 | 长江勘测规划设计研究有限责任公司 | Concrete anti-seepage panel reconstruct dam heel cover plate water sealing structure and its construction method |
| CN105648984A (en) * | 2016-01-07 | 2016-06-08 | 中国电建集团华东勘测设计研究院有限公司 | Repair structure for concrete panel buckling damage and construction method |
| CN106958257A (en) * | 2017-04-28 | 2017-07-18 | 中国电建集团贵阳勘测设计研究院有限公司 | It is a kind of to prevent the construction method and structure of plinth of concrete facing dam differential settlement |
| CN114718021A (en) * | 2022-05-10 | 2022-07-08 | 长江勘测规划设计研究有限责任公司 | Construction method for rapidly reconstructing upstream dam face seepage-proofing body structure of stone-laying dam |
| CN114718021B (en) * | 2022-05-10 | 2023-05-26 | 长江勘测规划设计研究有限责任公司 | Construction method for rapidly reconstructing seepage-proofing body structure of upstream dam face of stone-building dam |
| CN115404820A (en) * | 2022-09-05 | 2022-11-29 | 中国电建集团华东勘测设计研究院有限公司 | Asphalt concrete panel rock-fill dam arrangement structure and construction method |
| CN115492052A (en) * | 2022-09-29 | 2022-12-20 | 中国水电建设集团十五工程局有限公司 | Seepage-proofing reinforcing treatment method for small reservoir homogeneous dam body |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104863096B (en) | 2017-01-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104863096A (en) | Overlay construction method for repairing aged asphalt concrete seepage-prevention face plate | |
| CN105649089B (en) | A kind of excavation of foundation pit closes on existing shallow foundation protection structure construction method | |
| CN203334322U (en) | Seepage-prevention slurry blocking device of underground continuous wall | |
| CN204343339U (en) | A kind of temporary support columns waterproof base plate | |
| CN205012288U (en) | Embankment dam pitch core -wall base | |
| CN203393530U (en) | Anti-floating lightweight high-fill embankment structure | |
| CN104120686A (en) | High elastic die cushion type composite dam | |
| CN106759133A (en) | The mixing structure of dam type and construction method of a kind of homogeneous earth and rockfill dam and rock | |
| CN105953078B (en) | The protective device of high-pressure gas pipeline and guard method | |
| CN109667262B (en) | Karst water falling hole plugging structure and construction method thereof | |
| CN105648984A (en) | Repair structure for concrete panel buckling damage and construction method | |
| CN102797241A (en) | Resin panel earth-rock fill dam and panel construction method | |
| CN102966072A (en) | Construction method for treating widened and heightened engineering joint surfaces of dikes on soft clay foundation | |
| CN202865855U (en) | Stabilizing plate type anchoring pile retaining structure | |
| Ma et al. | Key technical problems of extra-high concrete faced rock-fill dam | |
| CN108487234B (en) | Construction method of cast-in-situ pile plate type platform wall | |
| CN108385612B (en) | Construction method of concrete protective panel with good stability | |
| CN208455647U (en) | Soft Rock Slope ecological safeguard structure | |
| CN103866775A (en) | Protection method of cold region dispersive soil side slope | |
| CN104328797A (en) | High-side-slope large-curve retaining wall building construction method | |
| CN102296620A (en) | Curtain water-stop slope wall and construction method thereof | |
| CN105970882A (en) | Structure solving reverse osmosis water problem of dam body in construction process of concrete-faced rockfill dam and construction method thereof | |
| CN205000296U (en) | Use concrete panel structure of high toe wall | |
| CN206667263U (en) | A kind of foundation pit supporting construction | |
| CN105586980A (en) | Construction method for wind tower foundation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |