CN111350164B - Anti-freezing damage near-water retaining wall and construction method - Google Patents
Anti-freezing damage near-water retaining wall and construction method Download PDFInfo
- Publication number
- CN111350164B CN111350164B CN202010190138.8A CN202010190138A CN111350164B CN 111350164 B CN111350164 B CN 111350164B CN 202010190138 A CN202010190138 A CN 202010190138A CN 111350164 B CN111350164 B CN 111350164B
- Authority
- CN
- China
- Prior art keywords
- retaining wall
- reinforced concrete
- layer
- isolation layer
- cover plate
- 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.)
- Expired - Fee Related
Links
- 230000006378 damage Effects 0.000 title claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 15
- 238000007710 freezing Methods 0.000 title claims abstract description 11
- 238000010276 construction Methods 0.000 title claims description 7
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 50
- 238000002955 isolation Methods 0.000 claims abstract description 38
- 239000002689 soil Substances 0.000 claims abstract description 23
- 239000004793 Polystyrene Substances 0.000 claims abstract description 14
- 239000011083 cement mortar Substances 0.000 claims abstract description 14
- 229920002223 polystyrene Polymers 0.000 claims abstract description 14
- 239000004575 stone Substances 0.000 claims abstract description 13
- 238000009413 insulation Methods 0.000 claims abstract description 12
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 15
- 239000013013 elastic material Substances 0.000 claims description 14
- 239000002245 particle Substances 0.000 claims description 11
- 229920001971 elastomer Polymers 0.000 claims description 10
- 239000004576 sand Substances 0.000 claims description 9
- 244000043261 Hevea brasiliensis Species 0.000 claims description 3
- 229920003211 cis-1,4-polyisoprene Polymers 0.000 claims description 3
- 229920003052 natural elastomer Polymers 0.000 claims description 3
- 229920001194 natural rubber Polymers 0.000 claims description 3
- 239000004567 concrete Substances 0.000 claims description 2
- 238000009417 prefabrication Methods 0.000 claims description 2
- 230000002265 prevention Effects 0.000 claims 4
- 108010053481 Antifreeze Proteins Proteins 0.000 claims 1
- 230000002528 anti-freeze Effects 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 238000006073 displacement reaction Methods 0.000 abstract description 6
- 230000008014 freezing Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 4
- 208000001034 Frostbite Diseases 0.000 abstract 1
- 239000012528 membrane Substances 0.000 description 8
- 238000004078 waterproofing Methods 0.000 description 8
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002595 cold damage Effects 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 230000009746 freeze damage Effects 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000001932 seasonal effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
- E02B3/06—Moles; Piers; Quays; Quay walls; Groynes; Breakwaters ; Wave dissipating walls; Quay equipment
- E02B3/066—Quays
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Civil Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Structural Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Paleontology (AREA)
- Mining & Mineral Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Ocean & Marine Engineering (AREA)
- Mechanical Engineering (AREA)
- Road Paving Structures (AREA)
Abstract
The utility model provides a prevent frostbite and fall into water retaining wall structure, includes retaining wall body, elasticity isolation layer, reinforced concrete apron, reinforced concrete support, and the retaining wall body rear side is equipped with the elasticity isolation layer, and the reinforced concrete support is buried underground in the frozen soil layer, and polystyrene insulation board is laid to the terrace on the elasticity isolation layer, is the cement mortar on the polystyrene insulation board, and reinforced concrete apron is lapped on cement mortar, and reinforced concrete apron one end is lapped on the reinforced concrete support, and the other end tower is on the revetment stone support of retaining wall body. The method of the invention enables the flatting and frost heaving stress generated by the frozen soil to directly act on the isolation layer by installing the isolation layer, dynamically absorbs the flatting and frost heaving stress of the frozen soil by enabling the isolation layer to elastically move, eliminates the flatting and frost heaving displacement, isolates the direct action of the frozen and frost heaving soil on the retaining wall structure, avoids the freezing damage of the retaining wall structure such as inclination, crack and collapse caused by the flatting and frost heaving displacement, prolongs the service life, saves the fund, and meets the basic requirements of building a conservation-minded society.
Description
Technical Field
The invention belongs to the technical field of constructional engineering, and particularly relates to a near-water retaining wall structure capable of preventing frost damage in winter and a construction method.
Background
At present, near-water retaining wall structures of lakes, reservoirs and the like in domestic seasonal frozen areas are pushed by frost heaving stress generated by frost heaving of frozen soil behind walls, and frost heaving horizontal displacement freeze injury is generated. The frost damage such as inclination, crack and even collapse of the wall structure is caused by overlarge frost heaving and horizontal displacement. The freezing injury is high in the frozen soil area in China, and the normal use function of the retaining wall structure in the design period is influenced by the damage of the freezing injury. The remedy method usually adopted when the freezing damage occurs is to dismantle and rebuild, a temporary cofferdam needs to be built when the water is not drained and rebuilt, and the generated earth and stone volume is huge; otherwise, the lake water is drained, and the waste of water resources is larger. Both of them have great economic loss and bring environmental pollution. Even if the reconstructed temporary water protection wall is subjected to cold damage, the damage phenomenon of the temporary water protection wall structure can also occur.
Disclosure of Invention
Aiming at the problems of serious economic loss and environmental pollution of the conventional disposal method in the prior art, the invention provides the anti-freezing retaining wall structure, and the elastic isolation layer is arranged on the back of the retaining wall, so that the frost heaving stress is effectively relieved, and the safety of the near-water retaining wall structure is protected.
In order to achieve the purpose, the invention provides an anti-freezing damage near-water retaining wall, which is characterized in that: the concrete retaining wall comprises a retaining wall body, an elastic isolation layer, a reinforced concrete cover plate and a reinforced concrete support, wherein the elastic isolation layer is arranged on the rear side of a retaining wall stone wall of the retaining wall body, the reinforced concrete support is embedded in a frozen soil layer, a polystyrene insulation board is laid on a terrace on the elastic isolation layer, a cement mortar leveling layer is made on the polystyrene insulation board, the reinforced concrete cover plate is lapped on the cement mortar leveling layer, one end of the reinforced concrete cover plate is lapped on the reinforced concrete support, and the other end of the reinforced concrete cover plate is arranged on the retaining wall stone support of the retaining wall body.
Furthermore, elastic isolation layer includes waterproofing membrane, elastic material, waterproofing membrane is SBS waterproofing membrane, pastes fixedly at revetment stone wall, fills elastic material in waterproofing membrane inslot layering, tamps closely, seals top surface waterproofing membrane.
Further, the elastic material is formed by selecting medium-coarse sand and ginseng rubber particles, and the volume ratio is as follows: medium coarse sand: rubber particles 7: 3. Wherein, the coarse sand gradation is continuous in control, and the mud content is less than 3 percent; the rubber particles are cis-1, 4-polyisoprene natural rubber with the particle size of 5-8 mm.
Furthermore, the upper limit of the elastic isolation layer is calculated on the lower surface of the polystyrene board, and the maximum frozen soil layer thickness deeper than the region is the lower limit; the thickness of the isolation layer is at least 500 mm.
Further, the depth of the reinforced concrete support is larger than the thickness of the maximum frozen soil layer.
Furthermore, the prefabricated reinforced concrete cover plate is paved with floor tiles which are firmly bonded with the base layer.
A construction method of an anti-freezing damage near-water retaining wall is characterized by comprising the following steps:
1. after the retaining wall structure is built, grooving the back of the retaining wall structure according to the buried depth and the thickness of the isolation layer, and ensuring that the depth and the width of the groove meet the size requirements of the isolation layer;
2. the reinforced concrete cover plate and the reinforced concrete support are embedded with the reinforced concrete support in a factory prefabrication mode;
3. bonding and fixing an SBS waterproof coiled material on the wall of the retaining wall stone wall of the retaining wall body, filling an elastic material in the coiled material groove layer by layer, wherein the layer thickness is 300mm, tamping is dense, and the top surface waterproof coiled material is closed;
4. laying a benzene plate heat-insulating layer, and tightly jointing seams; paving a cement mortar leveling layer on the benzene board, and maintaining to required strength;
5. a reinforced concrete cover plate is installed by using a truck crane, and the end parts of the plates are firmly lapped;
6. the floor tiles are paved to achieve the purposes of smooth surface, straight longitudinal and transverse gaps and firm bonding with the base layer.
Compared with the prior art, the invention has the beneficial effects that: the isolation layer is arranged on the back of the retaining wall, so that the frost heaving stress generated by the frozen soil directly acts on the isolation layer, the isolation layer performs elastic motion similar to a spring, the frost heaving stress of the frozen soil is dynamically absorbed, frost heaving horizontal displacement is eliminated, the direct action of the frost heaving soil on the retaining wall structure is isolated, frost damage such as inclination, crack and collapse of the retaining wall structure caused by the frost heaving horizontal displacement is avoided, the service life of the retaining wall structure is prolonged, a large amount of maintenance reinforcement or reconstruction funds are saved, and the basic requirements for building a conservation-oriented society are met.
Drawings
Fig. 1 is a schematic structural view of the present invention.
In the figure: 1-a retaining wall structure body; 2-an elastic barrier layer; 3-an elastic material; 4-waterproof coiled material; 5-polystyrene insulation board; 6-cement mortar leveling layer; 7-a reinforced concrete cover plate; 8-floor tile; 9-reinforced concrete support.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and the described embodiments are only a part of the embodiments of the present invention, not all of them. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, an anti-freezing damage waterside retaining wall structure comprises a retaining wall body 1, an elastic isolation layer 2, a reinforced concrete cover plate 7 and a reinforced concrete support 9, wherein the elastic isolation layer 2 is arranged on the rear side of a retaining wall stone wall of the retaining wall body 1, the reinforced concrete support 9 is embedded in a frozen soil layer, the depth of the reinforced concrete support 9 is greater than the thickness of the maximum frozen soil layer, and a waterproof coiled material 4 is wrapped on the outer interface of the elastic isolation layer 2 for sealing, specifically: waterproofing membrane 4 adopts SBS waterproofing membrane, and 4 inslots of SBS waterproofing membrane are layered and are filled up elastic material 3, and elastic material 3 chooses for use the well coarse sand to join in marriage rubber granule and form the elastomer, and the volume ratio is: medium coarse sand: 7:3 of rubber particles, wherein the coarse sand grading is controlled to be continuous, and the mud content is less than 3%; rubber particles (cis-1, 4-polyisoprene natural rubber is selected), the particle diameter is 5-8mm, the layering thickness is 300mm, the tamping is compact, and the top surface is closed. A polystyrene heat insulation plate 5 is laid on a terrace on the isolation layer 2, a cement mortar leveling layer 6 is made on the polystyrene heat insulation plate 5, a reinforced concrete cover plate 7 is lapped on the cement mortar leveling layer 6, one end of the reinforced concrete cover plate 7 is lapped on a reinforced concrete support 9, the other end of the reinforced concrete cover plate is arranged on a retaining wall stone support of the retaining wall body 1, and floor tiles 8 are laid on the reinforced concrete cover plate 7. Wherein, the upper limit of the isolation layer 2 is embedded on the lower surface of the polystyrene insulation board 5, and the maximum frozen soil layer thickness deeper than the area is the lower limit.
For example, if the thickness of the frozen soil layer is 1700mm, the depth of the isolation layer 2 is 2300mm, the thickness of the isolation layer is 500mm, the thickness of the polystyrene insulation board 5 on the isolation layer 2 is 150mm, and the length of the polystyrene insulation board is 2000mm which is 1.2 times of the thickness of the frozen soil layer. The thickness of a cement mortar leveling layer 5 on the isolation layer 2 is 50mm, the thickness of a reinforced concrete cover plate on the cement mortar leveling layer 5 is 100mm, the plate length 6 is 2250mm, and the height of a support of the reinforced concrete cover plate 6 is 1800mm according to the design of being deeper than the maximum frozen soil layer thickness. The floor tile 9 is above the ground level and can be selected by the lake unit.
The construction process of the invention comprises the following steps:
7. after the retaining wall structure is built completely, grooves are dug on the back of the retaining wall structure according to the buried depth and the thickness of the isolation layer, and manual grooves are adopted, so that the depth and the width of the grooves are ensured to meet the size requirements of the isolation layer.
8. The reinforced concrete cover plate and the reinforced concrete support are prefabricated in a factory, and various materials and equipment are transported to the nearby stacking of the groove edge; and embedding the reinforced concrete support.
9. The SBS waterproof roll is fixedly adhered to the wall of the retaining wall stone wall of the retaining wall body, elastic materials are filled in the roll grooves in a layered mode, the layered thickness is 300mm, tamping is dense, and the top surface waterproof roll is closed.
10. Laying a benzene plate heat-insulating layer, and tightly jointing seams; and paving a cement mortar leveling layer on the benzene board, and maintaining to required strength.
11. The reinforced concrete cover plate is installed by using a truck crane, and the lap joint of the end parts of the plate is firm. When the device is installed, a specially-assigned person is arranged to command the crane, so that the construction safety is ensured.
12. When the floor tile is paved, the surface is smooth, the longitudinal and transverse gaps are straight, and the floor tile is firmly bonded with the base layer.
13. The soil is frost-heaving in winter, and the isolation layer plays a role in absorbing the deformation of frost-heaving soil.
Claims (6)
1. The utility model provides an anti-freeze damage revetment that faces water which characterized in that: the concrete retaining wall comprises a retaining wall body, an elastic isolation layer, a reinforced concrete cover plate and a reinforced concrete support, wherein the elastic isolation layer is arranged on the rear side of a retaining wall stone wall of the retaining wall body, the reinforced concrete support is embedded in a frozen soil layer, a polystyrene insulation board is laid on a terrace on the elastic isolation layer, a cement mortar leveling layer is made on the polystyrene insulation board, the reinforced concrete cover plate is lapped on the cement mortar leveling layer, one end of the reinforced concrete cover plate is lapped on the reinforced concrete support, and the other end of the reinforced concrete cover plate is arranged on the retaining wall stone support of the retaining wall body;
the elastic isolation layer comprises a waterproof coiled material and an elastic material, the waterproof coiled material is an SBS waterproof coiled material, the waterproof coiled material is fixedly adhered to the wall of the retaining wall stone, the elastic material is filled in the waterproof coiled material groove layer by layer, the elastic material is tamped tightly, and the waterproof coiled material on the top surface is closed;
the elastic material is formed by mixing coarse sand with rubber particles.
2. The frost damage prevention waterside retaining wall according to claim 1, wherein: the volume ratio of the elastic material composition is medium coarse sand: rubber particles =7: 3; wherein, the coarse sand gradation is continuous in control, and the mud content is less than 3 percent; the rubber particles are cis-1, 4-polyisoprene natural rubber with the particle size of 5-8 mm.
3. The frost damage prevention waterside retaining wall according to claim 1, wherein: the upper limit of the elastic isolation layer is calculated on the lower surface of the polystyrene board, and the maximum frozen soil layer thickness deeper than the region is the lower limit; the thickness of the isolation layer is at least 500 mm.
4. The frost damage prevention waterside retaining wall according to claim 1, wherein: the depth of the reinforced concrete support is larger than the thickness of the maximum frozen soil layer.
5. The frost damage prevention waterside retaining wall according to claim 1, wherein: and the reinforced concrete cover plate is paved with floor tiles which are firmly bonded with the base layer.
6. A construction method of an anti-freezing damage near-water retaining wall is characterized by comprising the following steps:
(1) after the retaining wall structure is built, grooving the back of the retaining wall structure according to the buried depth and the thickness of the isolation layer, and ensuring that the depth and the width of the groove meet the size requirements of the isolation layer;
(2) the reinforced concrete cover plate and the reinforced concrete support are embedded with the reinforced concrete support in a factory prefabrication mode;
(3) bonding and fixing an SBS waterproof coiled material on the wall of the retaining wall stone wall of the retaining wall body, filling an elastic material in the coiled material groove layer by layer, wherein the layer thickness is 300mm, tamping is dense, and the top surface waterproof coiled material is closed;
(4) laying a benzene plate heat-insulating layer, and tightly jointing seams; paving a cement mortar leveling layer on the benzene board, and maintaining to required strength; (5) installing a reinforced concrete cover plate by using a truck crane, wherein the end parts of the reinforced concrete cover plate are firmly lapped;
(6) the floor tiles are paved to achieve the purposes of smooth surface, straight longitudinal and transverse gaps and firm bonding with the base layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010190138.8A CN111350164B (en) | 2020-03-18 | 2020-03-18 | Anti-freezing damage near-water retaining wall and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010190138.8A CN111350164B (en) | 2020-03-18 | 2020-03-18 | Anti-freezing damage near-water retaining wall and construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111350164A CN111350164A (en) | 2020-06-30 |
| CN111350164B true CN111350164B (en) | 2021-07-06 |
Family
ID=71192881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010190138.8A Expired - Fee Related CN111350164B (en) | 2020-03-18 | 2020-03-18 | Anti-freezing damage near-water retaining wall and construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111350164B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114525775B (en) * | 2022-02-28 | 2023-11-03 | 长安大学 | Mixed flexible broken stone filling method for inhibiting frost heave of underground structure cavity |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003306954A (en) * | 2002-04-18 | 2003-10-31 | Nippon Hodo Co Ltd | Wall retaining member and wall retaining structure |
| DE10326070A1 (en) * | 2003-06-10 | 2005-01-27 | Horst Schmitt | Flood protection system for dams consists of permanent panel wall in dam center separating land and water sides, and freezing units in dam section on water side |
| JP2006070514A (en) * | 2004-08-31 | 2006-03-16 | Daiwa House Ind Co Ltd | Anti-frost-heaving structure |
| CN206143955U (en) * | 2016-11-09 | 2017-05-03 | 郭士成 | Heat preservation big -arch shelter wall body that foaming cement constitutes |
| CN207295788U (en) * | 2017-08-14 | 2018-05-01 | 中机国能电力工程有限公司 | A kind of antifreeze aproll structure of extensional mode thermal insulation board |
| CN109610522A (en) * | 2018-12-11 | 2019-04-12 | 长春工程学院 | The light platform structure of frost damage prevention |
-
2020
- 2020-03-18 CN CN202010190138.8A patent/CN111350164B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003306954A (en) * | 2002-04-18 | 2003-10-31 | Nippon Hodo Co Ltd | Wall retaining member and wall retaining structure |
| DE10326070A1 (en) * | 2003-06-10 | 2005-01-27 | Horst Schmitt | Flood protection system for dams consists of permanent panel wall in dam center separating land and water sides, and freezing units in dam section on water side |
| JP2006070514A (en) * | 2004-08-31 | 2006-03-16 | Daiwa House Ind Co Ltd | Anti-frost-heaving structure |
| CN206143955U (en) * | 2016-11-09 | 2017-05-03 | 郭士成 | Heat preservation big -arch shelter wall body that foaming cement constitutes |
| CN207295788U (en) * | 2017-08-14 | 2018-05-01 | 中机国能电力工程有限公司 | A kind of antifreeze aproll structure of extensional mode thermal insulation board |
| CN109610522A (en) * | 2018-12-11 | 2019-04-12 | 长春工程学院 | The light platform structure of frost damage prevention |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111350164A (en) | 2020-06-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101298782A (en) | Method and system for basement engineering water proof and water drain | |
| US11952728B2 (en) | Road structure reconstructed from large-scale independent underground garage and construction method thereof | |
| CN102797241A (en) | Resin panel earth-rock fill dam and panel construction method | |
| CN109024135B (en) | Green upgrading structure and modification method for concrete pavement | |
| CN212837843U (en) | IV-class and V-class surrounding rock tunnel concrete lining anti-cracking structure | |
| CN110847124A (en) | Concrete panel rock-fill dam with multiple anti-seepage structures and construction method thereof | |
| CN212052626U (en) | Concrete panel rock-fill dam with multiple anti-seepage structure | |
| CN109706925A (en) | Novel fiber rib anti-floating anchor rod anchoring method | |
| CN112695799A (en) | High-altitude area grouted rubble retaining wall structure and construction method | |
| CN113323017B (en) | Construction method of side wall fertilizer groove foam concrete backfill system | |
| CN110067168B (en) | Asphalt pavement combined structure and construction method | |
| CN111350164B (en) | Anti-freezing damage near-water retaining wall and construction method | |
| CN113463458A (en) | Stable road structure and construction method thereof | |
| Dolton et al. | Cellular concrete: Engineering and technological advancement for construction in cold climates | |
| KR101149362B1 (en) | Retaining wall with prestressed concrete tie and method for constructing the same | |
| CN114753313B (en) | Small-size reservoir dam body seepage prevention structure | |
| CN212358188U (en) | Prevent frostbite damage face water revetment structure | |
| CN112900181B (en) | Construction method for widening thin layer of asphalt pavement | |
| CN114318993A (en) | Cold region highway cutting slope interlayer water disease treatment method | |
| CN115467291A (en) | Go up storehouse basin seepage prevention structure | |
| CN212865816U (en) | Hydraulic anti-seepage structure | |
| CN108166455A (en) | A kind of construction method and structure of High-cold regions excavation channel anti-freeze expansion | |
| CN212956604U (en) | Geotechnical cushion structure and socket joint type pipe gallery system applying geotechnical cushion structure | |
| CN210216475U (en) | Sump pit waterproof construction | |
| CN217231338U (en) | Environment-friendly water permeable brick pavement structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210706 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |