CN111997074A - Interim assembled concrete retaining platform subassembly - Google Patents
Interim assembled concrete retaining platform subassembly Download PDFInfo
- Publication number
- CN111997074A CN111997074A CN202010840112.3A CN202010840112A CN111997074A CN 111997074 A CN111997074 A CN 111997074A CN 202010840112 A CN202010840112 A CN 202010840112A CN 111997074 A CN111997074 A CN 111997074A
- Authority
- CN
- China
- Prior art keywords
- water retaining
- platform
- retaining platform
- movable
- edge
- 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.)
- Pending
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/02—Restraining of open water
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/02—Restraining of open water
- E02D19/04—Restraining of open water by coffer-dams, e.g. made of sheet piles
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Retaining Walls (AREA)
Abstract
The invention belongs to the technical field of water retaining platforms, and particularly relates to a temporary assembly type concrete water retaining platform assembly which comprises a water retaining platform, a movable steel bar and a carrying device, wherein the water retaining platform comprises a combined water retaining platform and an edge water retaining platform, one end surface of the combined water retaining platform is provided with an isosceles trapezoid-shaped connecting lug, and the other end surface of the combined water retaining platform is provided with a connecting groove; the edge water blocking platform is characterized in that one end face of the edge water blocking platform is provided with the same connecting lug, the other end face of the edge water blocking platform is provided with a rectangular groove, and a movable elastic block device is arranged in the groove; a pair of movable steel bars are fixed on the top surface of the water retaining platform, and the top ends of the movable steel bars are provided with threads; the carrying device comprises U-shaped round steel and two screw thread sleeves, threads are arranged at two ends of the U-shaped round steel, one end of each screw thread sleeve is screwed on the end of the U-shaped round steel, and the other end of each screw thread sleeve is screwed on the top end of the corresponding movable steel bar. The water retaining platform solves the problem that the existing water retaining platform cannot be circulated, moved and reused, and can be widely applied to various foundation pit water retaining occasions.
Description
Technical Field
The invention belongs to the technical field of water retaining platforms, and particularly relates to a temporary assembly type concrete water retaining platform assembly.
Background
China can build world-level high-difficulty buildings and structures and can complete construction and construction of various structures under various complex engineering geology and hydrogeology conditions. Along with the large-scale construction of urban high-rise buildings, underground garages, underground railways and the like and the requirement for fully utilizing overground resources, excavation of foundation pits becomes inevitable, and the excavation scale tends to be deeper and larger. The construction of various high-rise buildings prompts the appearance of some deep foundation pits, and the safety storage based on the deep foundation pits is relatively low in the prior art, but the technology is complex, the related range is wide, and the change factors are many, so that the safety accidents of the deep foundation pits frequently occur at present, and the attention of people to the safety accidents is increased day by day.
The foundation pit refers to an engineering with excavation depth of more than 5 meters (including 5 meters) or more than three layers (including three layers) of a basement, or a construction with excavation depth of less than 5 meters but particularly complex geological conditions, surrounding environment and underground pipelines. The foundation pit provides a space for building the foundation of the building, so that the foundation building operation can be carried out at a designated position according to the design. In the rainy period, in order to prevent rainwater from entering the foundation pit, a water retaining weir or an earth cofferdam with the height of 400mm is built on the ground outside the foundation pit by bricks, the manual building of the water retaining weir has a long construction period, and the manual dismantling is required after the rainy period, so that materials are wasted. The existing method of the water retaining platforms arranged at the periphery of the foundation pit is to masonry and plaster the water, so that the water retaining platforms cannot be used in a turnover mode, and the damage condition is more in the use process.
Therefore, there is a need to improve upon the above problems.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a temporary assembly type concrete water retaining platform assembly which can solve the problem that the existing water retaining platform cannot be circulated, moved and reused.
The technical scheme adopted by the invention is as follows:
a temporary assembly type concrete water retaining platform assembly comprises a water retaining platform, a movable steel bar and a carrying device, wherein the water retaining platform comprises a combined water retaining platform and an edge water retaining platform, the water retaining platform is of a rectangular concrete structure, one end surface of the combined water retaining platform is provided with an isosceles trapezoid-shaped connecting lug, and the other end surface of the combined water retaining platform is provided with an isosceles trapezoid-shaped connecting groove matched with the connecting lug; one end face of the edge water retaining platform is provided with a connecting lug consistent with that of the combined water retaining platform, the other end face of the edge water retaining platform is provided with a rectangular groove, and a movable elastic block device is arranged in the rectangular groove; a pair of movable steel bars are symmetrically and vertically fixed on the top surface of the water retaining platform, and threads are arranged at the top ends of the movable steel bars; the carrying device comprises U-shaped round steel and two screw thread sleeves, wherein threads are arranged at two ends of the U-shaped round steel, the screw thread sleeves are sleeves with built-in threads, one end of each screw thread sleeve is screwed on the end of the U-shaped round steel, and the other end of each screw thread sleeve is screwed on the top end of the movable steel bar.
The movable elastic block device comprises a movable block, a high-strength spring and a push rod, the movable block is a rectangular block with a deep groove arranged therein, a guide rail is arranged on the inner surface of the deep groove, the center of the inner end face of the rectangular groove of the edge water retaining table is fixed with one end of the high-strength spring, the inner end face of the deep groove of the movable block is fixed with one end of the push rod, the other end of the push rod is fixed with the other end of the high-strength spring, a guide strip matched with the guide rail on the inner side of the movable block is arranged on the surface of the push rod, and the guide strip of the push.
The rectangular groove on the edge water retaining platform and the moving block in the moving elastic block device are arranged in the middle of the end face of the edge water retaining platform, the height of the rectangular groove is consistent with that of the edge water retaining platform, and the width of the rectangular groove is smaller than that of the edge water retaining platform.
The bottom of the water retaining table is provided with a water retaining groove, and a water stop strip is installed in the water retaining groove.
And a stirrup is arranged in the combined water retaining platform, and the lower end of the movable steel bar on the combined water retaining platform is welded with the stirrup in the combined water retaining platform.
The water retaining platform is 400mm long and 150mm wide, the connecting convex block and the connecting groove are 100mm long and side long and 25mm thick, and the diameter of the movable steel bar is 20 mm.
Compared with the prior art, the invention has the following beneficial effects:
1. the water retaining platform can be correspondingly assembled by arranging the water retaining combination device, and the joggle joint arranged at the joint has stronger waterproof performance and higher practicability.
2. The invention specially improves the main structure in an edge mode, the movable elastic block device is arranged in the water retaining table at the edge, and the spring is matched with the movable block, so that the water retaining table at the edge can be contracted in corresponding length without being limited by the length.
3. The special carrying tool is arranged, the simple round steel and the sleeve support form a U-shaped structure, the water retaining platform can be simply dismounted and mounted, and the carrying tool is safe and efficient.
In conclusion, the invention uses concrete plasticity to adopt the customized template to intensively process and manufacture the components, the internal part is provided with the steel bars and the embedded bolt rod pieces, the structure is simple, the operation is convenient, the applicable range is wide, the carrying and the installation are facilitated, the cyclic utilization can be carried out, the environmental protection cost is saved, and the cost is low.
Drawings
FIG. 1 is a schematic view of the assembled water stop of the present invention;
FIG. 2 is a side view of the water dam of the present invention;
FIG. 3 is a schematic view of the overall structure of the carrying device of the present invention;
FIG. 4 is a schematic view of the edge water retaining platform of the present invention;
FIG. 5 is a schematic view of the overall structure of the moving bullet block device of the present invention;
FIG. 6 is a bottom view of the edge dam table of the present invention.
Wherein: 1 is a water retaining platform, 2 is a movable steel bar, 3 is a carrying device, 4 is a connecting lug, 5 is a movable elastic block device, 6 is a water stopping strip, 11 is a combined water retaining platform, 12 is an edge water retaining platform, 31 is U-shaped round steel, 32 is a threaded sleeve, 41 is a connecting groove, 51 is a movable block, 52 is a high-strength spring, 53 is a push rod, and 54 is a guide strip.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.
As shown in fig. 1 to 6, a temporary assembly type concrete water retaining platform assembly comprises a water retaining platform 1, a movable steel bar 2 and a carrying device 3, wherein the water retaining platform 1 comprises a combined water retaining platform 11 and an edge water retaining platform 12, the water retaining platform 1 is of a rectangular concrete structure, one end surface of the combined water retaining platform 11 is provided with an isosceles trapezoid-shaped connecting convex block 4, and the other end surface is provided with an isosceles trapezoid-shaped connecting groove 41 matched with the connecting convex block 4; a connecting lug 11 consistent with the combined water retaining platform 11 is arranged on one end face of the edge water retaining platform 12, a rectangular groove is arranged on the other end face, and a movable elastic block device 5 is arranged in the rectangular groove; a pair of movable steel bars 2 are symmetrically and vertically fixed on the top surface of the water retaining platform 1, and threads are arranged at the top ends of the movable steel bars 2; carrying device 3 includes U type round steel 31 and two screw thread sleeves 32, the both ends head department of U type round steel 31 is provided with the screw thread, the diameter of U type round steel 31 is 20mm, screw thread sleeve 32 is the sleeve pipe of built-in screw thread, screw thread sleeve 32's one end is screwed on U type round steel 31's end, screw thread sleeve 32's the other end is screwed on the top of removing reinforcing bar 2.
The movable elastic block device 5 comprises a movable block 51, a high-strength spring 52 and a push rod 53, the movable block 51 is a rectangular block with a deep groove arranged therein, a guide rail is arranged on the inner surface of the deep groove, the center of the inner end face of the rectangular groove of the edge water blocking table 12 is fixed with one end of the high-strength spring 52, the inner end face of the deep groove of the movable block 51 is fixed with one end of the push rod 53, the other end of the push rod 53 is fixed with the other end of the high-strength spring 52, a guide strip 54 matched with the guide rail on the inner side of the movable block 51 is arranged on the surface of the push rod 53, and the guide strip 54 of the push rod.
The rectangular groove on the edge water retaining platform 12 and the moving block 51 in the moving elastic block device 5 are arranged in the middle of the end face of the edge water retaining platform 12, the height of the rectangular groove is consistent with that of the edge water retaining platform 12, and the width of the rectangular groove is smaller than that of the edge water retaining platform 12.
The bottom of the water stopping platform 1 is provided with a water stopping groove, the water stopping groove is reserved in the manufacturing process, a water stopping strip 6 is installed in the water stopping groove, the water stopping strip 6 only needs to be adhered, and the water stopping strip 6 is a rubber water stopping strip 6.
Be provided with the stirrup in the combination manger plate platform 11, the stirrup welding in 2 lower extremes of the removal reinforcing bar on the combination manger plate platform 11 and the combination manger plate platform 11, built-in stirrup is diameter 6.5mm, and still built-in reinforcing bar has, welds with the stirrup, the reinforcing bar has 4, diameter 18mm, all with removal reinforcing bar 2 welds, strengthens security and steadiness.
The length of the water retaining platform 1 is 400mm, the width of the water retaining platform is 150mm, the length of the long side of the connecting convex block 4 and the connecting groove 41 is 100mm, the thickness of the connecting convex block is 25mm, the diameter of the movable steel bar 2 is 20mm, and the water retaining platform 1 is made of C30 concrete.
When the device is used, the carrying device 3 is used firstly, the screw thread sleeves 32 are screwed off and are respectively placed on the movable steel bars 2, the U-shaped round steel 31 is placed, the screw thread sleeves 32 are respectively screwed down, the water retaining platforms 1 are carried one by one, a plurality of combined water retaining platforms 11 are assembled through the connecting convex blocks 4 and the connecting grooves 41, only the positions of the water retaining platforms 1 on two sides are left, two edge water retaining platforms 12 are selected, the edge water retaining platforms 12 on two sides are simultaneously installed, the movable elastic block device 5 is pressed firstly, after the edge water retaining platforms 12 are installed, the movable elastic block device 5 is loosened, so that the movable block device 5 pushes out the movable block 51 under the action of the high-strength spring 52 and acts on objects on two ends, and edge plugging is realized.
The water retaining combination device is arranged, the water retaining platform 1 can be correspondingly assembled, and the joggle joint arranged at the joint has stronger waterproof performance and higher practicability; the main structure is specially improved marginally, a movable elastic block device 5 is arranged in the water retaining table at the edge, and a spring is matched with a movable block 51, so that the water retaining table at the edge can be not limited by length and can be correspondingly contracted in length; a special carrying tool is also arranged, the simple round steel and the sleeve support form a U-shaped structure, so that the water retaining table 1 can be simply dismounted and mounted, and the safety and the high efficiency are realized; utilize concrete plasticity to adopt the customization template to concentrate processing preparation component, inside configuration reinforcing bar, pre-buried bolt member, simple structure, convenient operation, applicable wide range does benefit to transport, installation again, still can carry out cyclic utilization, practices thrift environmental protection cost low, can have enough to meet the need the use, also is difficult for damaging.
Although only the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art, and all changes are encompassed in the scope of the present invention.
Claims (6)
1. The utility model provides a interim assembled concrete retaining platform subassembly which characterized in that: the water retaining platform comprises a water retaining platform (1), a movable steel bar (2) and a carrying device (3), wherein the water retaining platform (1) comprises a combined water retaining platform (11) and an edge water retaining platform (12), the water retaining platform (1) is of a rectangular concrete structure, one end face of the combined water retaining platform (11) is provided with an isosceles trapezoid-shaped connecting lug (4), and the other end face of the combined water retaining platform is provided with an isosceles trapezoid-shaped connecting groove (41) matched with the connecting lug (4); one end face of the edge water retaining platform (12) is provided with a connecting lug (11) consistent with the combined water retaining platform (11), the other end face is provided with a rectangular groove, and a movable elastic block device (5) is arranged in the rectangular groove; a pair of movable steel bars (2) are symmetrically and vertically fixed on the top surface of the water retaining platform (1), and threads are arranged at the top ends of the movable steel bars (2); carrying device (3) are including U type round steel (31) and two screw thread sleeves (32), the both ends head department of U type round steel (31) is provided with the screw thread, screw thread sleeve (32) are the sleeve pipe of built-in screw thread, the one end of screw thread sleeve (32) is twisted soon on the end of U type round steel (31), the other end of screw thread sleeve (32) is twisted soon on the top of removing reinforcing bar (2).
2. A temporary fabricated concrete flashing platform assembly as claimed in claim 1, in which: the movable elastic block device (5) comprises a movable block (51), a high-strength spring (52) and a push rod (53), the movable block (51) is a rectangular block with a deep groove arranged therein, a guide rail is arranged on the inner surface of the deep groove, the center of the inner end face of the rectangular groove of the edge water retaining table (12) is fixed with one end of the high-strength spring (52), the inner end face of the deep groove of the movable block (51) is fixed with one end of the push rod (53), the other end of the push rod (53) is fixed with the other end of the high-strength spring (52), a guide strip (54) matched with the guide rail on the inner side of the movable block (51) is arranged on the surface of the push rod (53), and the guide strip (54) of the push rod (53) is placed in the.
3. A temporary fabricated concrete flashing platform assembly as claimed in claim 2, in which: the rectangular groove on the edge water retaining platform (12) and the moving block (51) in the moving elastic block device (5) are arranged in the middle of the end face of the edge water retaining platform (12), the height of the rectangular groove is consistent with that of the edge water retaining platform (12), and the width of the rectangular groove is smaller than that of the edge water retaining platform (12).
4. A temporary fabricated concrete flashing platform assembly as claimed in claim 1, in which: the water stopping platform is characterized in that a water stopping groove is formed in the bottom of the water stopping platform (1), and a water stopping strip (6) is installed in the water stopping groove.
5. A temporary fabricated concrete flashing platform assembly as claimed in claim 1, in which: the combined water retaining platform is characterized in that stirrups are arranged in the combined water retaining platform (11), and the lower ends of the movable steel bars (2) on the combined water retaining platform (11) are welded with the stirrups in the combined water retaining platform (11).
6. A temporary fabricated concrete flashing platform assembly as claimed in claim 1, in which: the length of the water retaining platform (1) is 400mm, the width of the water retaining platform is 150mm, the length of the long edge of each of the connecting lug (4) and the connecting groove (41) is 100mm, the thickness of the connecting lug is 25mm, and the diameter of the movable reinforcing steel bar (2) is 20 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010840112.3A CN111997074A (en) | 2020-08-20 | 2020-08-20 | Interim assembled concrete retaining platform subassembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010840112.3A CN111997074A (en) | 2020-08-20 | 2020-08-20 | Interim assembled concrete retaining platform subassembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111997074A true CN111997074A (en) | 2020-11-27 |
Family
ID=73473954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010840112.3A Pending CN111997074A (en) | 2020-08-20 | 2020-08-20 | Interim assembled concrete retaining platform subassembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111997074A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI817439B (en) * | 2022-04-08 | 2023-10-01 | 冠達物業有限公司 | Movable pier |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08120680A (en) * | 1994-10-26 | 1996-05-14 | Nittoc Constr Co Ltd | Earth retaining cofferdam execution method in maritime work |
| CN203383185U (en) * | 2013-07-19 | 2014-01-08 | 贾永明 | Movable water retaining dam |
| CN203462758U (en) * | 2013-08-13 | 2014-03-05 | 武汉市市政建设集团有限公司 | Symmetrical tie bar device for building construction |
| CN107780423A (en) * | 2017-11-24 | 2018-03-09 | 河南水建集团有限公司 | Adjustable water cofferdam |
| CN207331719U (en) * | 2017-10-31 | 2018-05-08 | 南通市达欣工程股份有限公司 | Construction site regularization turnover type water blocking platform |
| CN208039284U (en) * | 2018-02-05 | 2018-11-02 | 三门峡市水利勘测设计有限责任公司 | A kind of dismountable water conservancy construction cofferdam |
| CN109403363A (en) * | 2018-12-14 | 2019-03-01 | 南水北调中线干线工程建设管理局 | A kind of self balance combined water-retaining cofferdam and its construction method |
| CN208907272U (en) * | 2018-08-06 | 2019-05-28 | 邛崃三柚建筑机械有限公司 | A kind of assembly building block of adjustable length |
| CN209567401U (en) * | 2019-01-23 | 2019-11-01 | 浙江省送变电工程有限公司 | A kind of cable duct concrete cover opening and closing tool |
| JP6664682B1 (en) * | 2019-10-16 | 2020-03-13 | アザイ技術コンサルタント株式会社 | Float platform and construction method of temporary closing structure using the same |
| CN210597345U (en) * | 2019-09-02 | 2020-05-22 | 美丽国土（北京）生态环境工程技术研究院有限公司 | Modular assembly type water retaining cofferdam |
-
2020
- 2020-08-20 CN CN202010840112.3A patent/CN111997074A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08120680A (en) * | 1994-10-26 | 1996-05-14 | Nittoc Constr Co Ltd | Earth retaining cofferdam execution method in maritime work |
| CN203383185U (en) * | 2013-07-19 | 2014-01-08 | 贾永明 | Movable water retaining dam |
| CN203462758U (en) * | 2013-08-13 | 2014-03-05 | 武汉市市政建设集团有限公司 | Symmetrical tie bar device for building construction |
| CN207331719U (en) * | 2017-10-31 | 2018-05-08 | 南通市达欣工程股份有限公司 | Construction site regularization turnover type water blocking platform |
| CN107780423A (en) * | 2017-11-24 | 2018-03-09 | 河南水建集团有限公司 | Adjustable water cofferdam |
| CN208039284U (en) * | 2018-02-05 | 2018-11-02 | 三门峡市水利勘测设计有限责任公司 | A kind of dismountable water conservancy construction cofferdam |
| CN208907272U (en) * | 2018-08-06 | 2019-05-28 | 邛崃三柚建筑机械有限公司 | A kind of assembly building block of adjustable length |
| CN109403363A (en) * | 2018-12-14 | 2019-03-01 | 南水北调中线干线工程建设管理局 | A kind of self balance combined water-retaining cofferdam and its construction method |
| CN209567401U (en) * | 2019-01-23 | 2019-11-01 | 浙江省送变电工程有限公司 | A kind of cable duct concrete cover opening and closing tool |
| CN210597345U (en) * | 2019-09-02 | 2020-05-22 | 美丽国土（北京）生态环境工程技术研究院有限公司 | Modular assembly type water retaining cofferdam |
| JP6664682B1 (en) * | 2019-10-16 | 2020-03-13 | アザイ技術コンサルタント株式会社 | Float platform and construction method of temporary closing structure using the same |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI817439B (en) * | 2022-04-08 | 2023-10-01 | 冠達物業有限公司 | Movable pier |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202626972U (en) | Novel section precast concrete fender post | |
| CN202369968U (en) | Assembled water drainage box culvert | |
| CN206591509U (en) | Protecting wall and the precast concrete pile for building protecting wall | |
| CN111997074A (en) | Interim assembled concrete retaining platform subassembly | |
| CN104790435A (en) | Post-subsidence pouring belt advancing waterstop impermeable concrete structure and construction technology thereof | |
| CN204626427U (en) | Assembling cofferdam | |
| CN204491825U (en) | Can restore funcitons Aseismic Structure System | |
| CN210684727U (en) | Construction safety supporting construction | |
| CN203049577U (en) | Complete recovery type non-grouting anchor grasping anchor cable timbering structure | |
| CN112575789A (en) | Diagonal space truss foundation pit inner support system | |
| CN208472743U (en) | Assembled cofferdam structure | |
| CN208039269U (en) | A kind of three-layer pipe corridor section foundation pit supporting construction | |
| CN212077954U (en) | Portable assembled deep basal pit steel sheet case supporting construction that can have enough to meet need | |
| CN203488088U (en) | Steel structure of ladder compartment for pedestrian courtyard | |
| CN211007943U (en) | Interim rail guard of foundation ditch | |
| CN206396794U (en) | A kind of assembled piping lane | |
| CN204703123U (en) | Assembling type mobile flood protection wall | |
| CN204590071U (en) | Force transferring structure between basement structure and mid-board | |
| CN209399990U (en) | Open-air surface observation mound structure | |
| CN107587477B (en) | Corrugated surface base detachable flood control wall | |
| CN203429528U (en) | Bridge-type precast-reinforced-concrete-trough-plate wear-resistant pavement structure system | |
| CN208280093U (en) | A kind of water conservancy construction erosion control dam protection arrangement | |
| CN201883422U (en) | Fabricated steel guide wall for underground continuous wall | |
| CN205530284U (en) | Can dismantle soil nail shingle nail structure | |
| CN205502045U (en) | Drainage of assembled foundation ditch and protective system suitable for industrial production |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201127 |
|
| RJ01 | Rejection of invention patent application after publication |