CN113756338B - Municipal building's side slope reinforcing apparatus - Google Patents
Municipal building's side slope reinforcing apparatus Download PDFInfo
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- CN113756338B CN113756338B CN202111059414.8A CN202111059414A CN113756338B CN 113756338 B CN113756338 B CN 113756338B CN 202111059414 A CN202111059414 A CN 202111059414A CN 113756338 B CN113756338 B CN 113756338B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
- E02D17/207—Securing of slopes or inclines with means incorporating sheet piles or piles
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/54—Piles with prefabricated supports or anchoring parts; Anchoring piles
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/72—Pile shoes
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2200/00—Geometrical or physical properties
- E02D2200/16—Shapes
- E02D2200/1692—Shapes conical or convex
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
The invention discloses a side slope reinforcing device for municipal buildings, which comprises two main beams, wherein the two main beams are fixedly connected through a plurality of cross beams, a plurality of positioning piles are fixedly arranged on the lower surfaces of the cross beams, the upper end ports of the positioning piles extend to the upper surfaces of the cross beams, positioning cones are fixedly arranged on the closed surfaces of the lower end ports of the positioning piles, stand columns are arranged in the inner cavities of the positioning piles, air bags are arranged on the stand columns, inflation tubes are assembled on the air bags, a plurality of openings are arranged on the side surfaces of the positioning piles, rotating shafts are arranged in the openings, positioning rods are arranged in the openings, the lower ends of the positioning rods are sleeved on the rotating shafts, the positioning rods turn outwards towards the positioning piles around the rotating shafts, a plurality of reinforcing piles are arranged between every two adjacent positioning piles, and the upper end ports of the reinforcing piles extend to the upper surfaces of the cross beams. The invention has the advantages of simple and practical structure, convenient use and good reinforcing effect.
Description
Technical Field
The invention relates to the technical field of municipal construction, in particular to a slope reinforcing device for municipal buildings.
Background
Slope reinforcement refers to a measure for improving the stability of a slope of an open pit mine, and the stability of the slope is improved by arranging slope angle retaining walls under slope angles of a slope crushing zone, arranging anti-slide piles on a local crushing zone or the slope and grouting rock strata with open joints and cracks.
The Chinese patent with the publication number of CN106013186B discloses a slope reinforcing device for building municipal engineering, which comprises a hollow long straight barrel, wherein the outer wall of the barrel is provided with external threads, a bearing is fixed at the upper position in the barrel, a guide rod is arranged on the inner ring of the bearing in an interference fit manner, the guide rod and the barrel are positioned on the same axis, a spiral part is arranged below the guide rod, gear inserted rods are arranged at two sides of the barrel and comprise a gear end and an inserted rod end which are connected, the gear end is rotatably arranged on the barrel, part of the gear end is positioned in the barrel and is meshed with the spiral part of the guide rod, a notch part is arranged on the side wall below the barrel and is used for accommodating the inserted rod end, a plurality of reinforcing blocks are connected on the outer wall of the barrel in a threaded manner, the reinforcing blocks are connected with each other through flange blocks, annular grooves which are arranged at intervals along the axial direction are arranged on the outer side wall of the reinforcing blocks, the flange blocks are screwed into the outer side wall of the barrel through threads, and the upper end faces and the lower end faces of the flange blocks are respectively connected through screws; the cross beam is provided with a through hole part and is arranged on the cylinder body through the through hole part, the cross beam is laid on the surface soil body of the side slope, an anchor ingot is sleeved on the upper part of the cylinder body and is embedded with the through hole part of the cross beam, the cylinder body is sleeved with a spring and is screwed into a pressing plate, the pressing plate is screwed downwards so that the spring has downward pressing force on the anchor ingot, the lower end of the cylinder body is provided with a sharp sleeve, a limiting ring is arranged on the outer side wall of the cylinder body above the gap part, and the upper end of the guide rod is provided with a detachable handle.
During the use, prepare in advance and be equipped with the device of barrel, guide arm, gear inserted bar, reinforcement piece, flange piece and reinforcement piece interval installation, the reinforcement piece is installed in the centre of two flange pieces, plays the connection effect, and first and last all are reinforcement piece, and the reinforcement piece of below is spacing by the spacing ring. The device is characterized in that an insertion rod end of a gear insertion rod is accommodated in a notch portion of a cylinder body through a rotating handle, then a proper hole is vertically punched in a side slope, the device is placed in the hole, then a guide rod rotates through rotation of the handle, the insertion rod end of the gear insertion rod is made to be horizontal, then concrete mortar is poured into the hole, a cross beam is placed in the cylinder body and laid on a surface soil body of the side slope, an anchor ingot is sleeved on the upper portion of the cylinder body and used for being embedded with a through hole portion of the cross beam, a spring is sleeved in the cylinder body, a pressing plate is screwed in the cylinder body, and the pressing plate is screwed downwards to enable the spring to press the anchor ingot downwards.
This side slope reinforcing apparatus for building municipal works combines improvement stability mutually through deployable gear inserted bar and downthehole concrete mortar, however in the in-service use process, the gear leads to the card to die because the grit that drops into in the sleeve easily, perhaps the hole of beating into perpendicularly in the side slope is because the aperture mismatches, leads to the inserted bar end of gear inserted bar to open completely, consequently there is a great deal of inconvenience in this side slope reinforcing apparatus for building municipal works in the in-service use process, improved space in addition.
Disclosure of Invention
The invention aims to solve the problems and designs a slope reinforcement device for municipal buildings.
A side slope reinforcing device for municipal buildings comprises a reinforcing layer, wherein the reinforcing layer comprises two main beams which are parallel to each other, the two main beams are fixedly connected through a plurality of cross beams which are parallel to each other, the length direction of the cross beams is vertical to the length direction of the main beams,
the lower surface of the cross beam is fixedly provided with a plurality of positioning piles, the positioning piles are evenly distributed on the lower surface of the cross beam in the order of left, middle and right, the positioning piles are vertical to the lower surface of the cross beam, a hollow inner cavity is arranged in each positioning pile, the upper end port of each positioning pile extends to the upper surface of the cross beam, the hollow inner cavity of each positioning pile is communicated with the upper surface of the cross beam, the lower end port of each positioning pile is closed, a positioning cone is fixedly arranged on the closed surface of the lower end port of each positioning pile, the tip of each positioning cone points to the lower side of each positioning pile, an upright column is arranged in the inner cavity of each positioning pile, the lower end of each upright column is fixedly connected with the bottom surface of the inner cavity of each positioning pile, the lower end of each upright column is vertical to the bottom surface of the inner cavity of each positioning pile, each air bag is provided with an air bag, the air bag is in a circular ring shape, the air bag is sleeved on each upright column and fixedly connected with the side surface of the upright column, the air bag is close to the upper end of each air bag, one end of each air bag is provided with an inflation tube, one end of each air bag is connected with the air bag and extends out of the upper surface of the cross beam;
the positioning pile is characterized in that a plurality of openings are formed in the side surface of the positioning pile, the openings are communicated with an inner cavity of the positioning pile, a rotating shaft is installed in each opening, the rotating shaft is close to the lower edge of each opening, the rotating shaft is parallel to the bottom surface of the inner cavity of the positioning pile, a positioning rod is arranged in each opening, the lower end of each positioning rod is sleeved on the corresponding rotating shaft, the upper end of each positioning rod is close to the upper edge of each opening, the positioning rods rotate outwards around the rotating shafts towards the positioning pile, each positioning rod is a round rod, and the end faces of the upper ends of the positioning rods are spherical faces;
be equipped with a plurality of reinforcement piles between two adjacent spuds, reinforcement pile fixed mounting is on the lower surface of crossbeam, the reinforcement pile is parallel with the spud, be equipped with hollow inner chamber in the reinforcement pile, the upper end port of reinforcement pile extends to on the upper surface of crossbeam, the inner chamber of reinforcement pile and the upper surface intercommunication of crossbeam, the lower extreme port of reinforcement pile is unsealed port, the inner chamber of reinforcement pile communicates with the external world through its lower extreme port.
After the air bag is inflated, a pressure release valve is installed at the other end of the inflation tube, and when the air bag is extruded, gas in the air bag is slowly discharged through the pressure release valve.
The rotary shaft is provided with a coil spring, the coil spring drives the positioning rod to turn around the rotary shaft to the inner cavity of the positioning pile, the upper edge of the opening is provided with a baffle, and the baffle blocks the positioning rod to turn around the rotary shaft to the inner cavity of the positioning pile.
The openings are distributed on the side surface of the positioning pile at equal angles around the center line of the positioning pile, the openings are rectangular long-strip-shaped openings, and the length direction of the openings is the same as that of the positioning pile.
The number of the openings is four, the distances between the lower edges of the openings and the bottom surface of the inner cavity of the positioning pile are the same, and the width of each opening is not less than five centimeters.
The lower end port of the reinforcing pile is higher than the lower end port of the positioning pile.
The upper edge of the opening is higher than the upper edge of the air bag, and the height difference between the upper edge of the opening and the upper edge of the air bag is not less than five centimeters.
The reinforcing piles between two adjacent positioning piles are two in number, the reinforcing piles are round pipe-shaped, and reinforcing steel bars for pouring are embedded in the reinforcing piles.
The number of the positioning piles is three, the shapes of the positioning piles and the reinforcing piles are both circular tube-shaped, and the positioning cone is conical.
The main beam and the cross beam are square rods.
Advantageous effects
The side slope reinforcing device for the municipal building manufactured by the technical scheme of the invention has the following advantages:
1. the device is mainly used for reinforcing the side slope in the building municipal engineering, the side slope is stabilized through the reinforcing layer, the reinforcing layer is tightly connected with the side slope by utilizing the unfolding state of the positioning rod on the positioning pile, and the reinforcing strength of the reinforcing layer on the side slope is improved by utilizing the mode that reinforcing steel bars are arranged in the reinforcing pile and concrete pouring is matched, so that the side slope reinforcing layer is more stably attached to the side slope;
2. this device utilizes the fixed back up coat of the mode that the locating lever expanded on the gasbag drive spud, has guaranteed the inseparable laminating of back up coat and side slope, and then has promoted the wholeness of broken side slope soil body, improves slope body wholeness and stability, utilizes the mode of earthwork backfill to come the exhaust and keep the expansion state of locating lever simultaneously, convenient operation, the engineering degree of difficulty is little, consolidates the effect obviously, the construction of being convenient for.
Drawings
FIG. 1 is a front view of a slope reinforcement for municipal structures according to the invention;
FIG. 2 is a left side view of a slope reinforcement for municipal structures according to the invention;
FIG. 3 is a top plan view of a slope reinforcement for municipal structures according to the invention;
FIG. 4 is a partially enlarged view of the positioning rod of the present invention in its expanded state;
in the figure, 1, a main beam; 2. a cross beam; 3. positioning the pile; 4. positioning a cone; 5. a column; 6. an air bag; 7. an inflation tube; 8. an opening; 9. a rotating shaft; 10. positioning a rod; 11. and (6) reinforcing the piles.
Detailed Description
The invention is described in detail below with reference to the drawings, as shown in FIGS. 1-4;
the lower end of the stand column is fixedly connected with the bottom surface of the inner cavity of the positioning pile, the stand column 5 is arranged in the inner cavity of the positioning pile, the lower end of the stand column is fixedly connected with the bottom surface of the inner cavity of the positioning pile, an air bag 6 is arranged on the stand column, the shape of the air bag is circular, the air bag is sleeved on the stand column and fixedly connected with the side surface of the stand column, the air bag is close to the upper end of the stand column, one end of the air bag is connected with the air bag and inflates the air bag, and the other end of the air bag extends upwards out of the upper surface of the cross beam;
the positioning pile is characterized in that a plurality of openings 8 are formed in the side surface of the positioning pile, the openings are communicated with the inner cavity of the positioning pile, a rotating shaft 9 is installed in each opening, the rotating shaft is close to the lower edge of each opening, the rotating shaft is parallel to the bottom surface of the inner cavity of the positioning pile, a positioning rod 10 is arranged in each opening, the lower end of each positioning rod is sleeved on each rotating shaft, the upper end of each positioning rod is close to the upper edge of each opening, each positioning rod rotates outwards towards the positioning pile around the rotating shaft, each positioning rod is a round rod, and the end face of the upper end of each positioning rod is a spherical face;
the utility model provides a creation point still lies in, is equipped with a plurality of reinforcement piles 11 between two adjacent guide piles, reinforcement pile fixed mounting is on the lower surface of crossbeam, the reinforcement pile is parallel with the guide pile, be equipped with hollow inner chamber in the reinforcement pile, the upper end port of reinforcement pile extends to on the upper surface of crossbeam, the inner chamber of reinforcement pile and the upper surface intercommunication of crossbeam, the lower extreme port of reinforcement pile is not confined port, the inner chamber of reinforcement pile is through its lower extreme port and external intercommunication.
The air bag is characterized in that a pressure release valve is arranged at the other end of the inflation tube after the air bag is inflated, and when the air bag is extruded, the gas in the air bag is slowly discharged through the pressure release valve; the rotary shaft is provided with a coil spring, the coil spring drives the positioning rod to turn around the rotary shaft to the inner cavity of the positioning pile, the upper edge of the opening is provided with a retaining edge, and the retaining plate blocks the positioning rod from turning around the rotary shaft to the inner cavity of the positioning pile; the openings are distributed on the side surface of the positioning pile at equal angles around the center line of the positioning pile, the openings are rectangular long-strip-shaped openings, and the length direction of the openings is the same as that of the positioning pile; the number of the openings is four, the distances between the lower edges of the openings and the bottom surface of the inner cavity of the positioning pile are the same, and the width of each opening is not less than five centimeters; the lower end port of the reinforcing pile is higher than the lower end port of the positioning pile; the upper edge of the opening is higher than the upper edge of the air bag, and the height difference between the upper edge of the opening and the upper edge of the air bag is not less than five centimeters; the number of the reinforcing piles between every two adjacent positioning piles is two, the reinforcing piles are circular tube-shaped, and reinforcing steel bars for pouring are embedded in the reinforcing piles; the number of the positioning piles is three, the shapes of the positioning piles and the reinforcing piles are both circular tube-shaped, and the shape of the positioning cone is conical; the main beam and the cross beam are square rods.
In the implementation process of the technical scheme, the lower surface of the reinforcing layer faces the side slope, then the positioning piles and the reinforcing piles are inserted into the side slope, the air bags in the positioning piles are inflated through the air pump and the inflation tubes, the air bags expand and drive the positioning rods to expand, and the structure is shown in fig. 4; after the positioning rod is unfolded, a worker installs the pressure release valve at the other end of the inflation tube, then earth is backfilled into the positioning pile, along with the increase of the backfilling volume, the pressure received by the air bag is increased, the air pressure in the air bag is gradually increased, and finally the pressure release valve is pushed open to exhaust air outwards; after the backfill operation of the positioning pile is completed, the workers pour concrete into the reinforcing pile, so that the stability of the reinforcing layer and the side slope is further improved, and the reinforcing effect of the side slope is realized.
It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one of the elements does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.
The technical solutions described above only represent the preferred technical solutions of the present invention, and some possible modifications to some parts of the technical solutions by those skilled in the art all represent the principles of the present invention, and fall within the protection scope of the present invention.
Claims (8)
1. A side slope reinforcing device for municipal buildings comprises a reinforcing layer, wherein the reinforcing layer comprises two main beams (1) which are parallel to each other, the two main beams are fixedly connected through a plurality of cross beams (2), the cross beams are parallel to each other, the length direction of the cross beams is vertical to the length direction of the main beams, and the side slope reinforcing device is characterized in that,
the lower surface of the cross beam is fixedly provided with a plurality of positioning piles (3), the positioning piles are evenly distributed on the lower surface of the cross beam according to the sequence of left, middle and right, the positioning piles are vertical to the lower surface of the cross beam, hollow inner cavities are arranged in the positioning piles, the upper end ports of the positioning piles extend to the upper surface of the cross beam, the hollow inner cavities of the positioning piles are communicated with the upper surface of the cross beam, the lower end ports of the positioning piles are closed, positioning cones (4) are fixedly arranged on the closed surfaces of the lower end ports of the positioning piles, the tips of the positioning cones point to the lower sides of the positioning piles, stand columns (5) are arranged in the inner cavities of the positioning piles, the lower ends of the stand columns are fixedly connected with the bottom surfaces of the inner cavities of the positioning piles, the lower ends of the stand columns are vertical to the bottom surfaces of the inner cavities of the positioning piles, air bags (6) are arranged on the stand columns, the air bags are in circular ring shapes, the air release valves are sleeved on the stand columns and fixedly connected with the side surfaces of the stand columns, the air bags are close to the upper ends of the stand columns, the air bags are assembled with inflation tubes (7), one ends of the air bags are connected with the air bags and used for inflating and for slowly extruding the air bags when the air bags are extruded from the upper surface of the cross beam;
the positioning pile is characterized in that a plurality of openings (8) are formed in the side surface of the positioning pile, the openings are communicated with the inner cavity of the positioning pile, a rotating shaft (9) is installed in each opening, the rotating shaft is close to the lower edge of each opening, the rotating shaft is parallel to the bottom surface of the inner cavity of the positioning pile, a positioning rod (10) is arranged in each opening, the lower end of each positioning rod is sleeved on each rotating shaft, the upper end of each positioning rod is close to the upper edge of each opening, the positioning rods turn outwards around the rotating shafts towards the positioning pile, each positioning rod is a round rod, the upper end face of each positioning rod is a spherical face, a coil spring is arranged on each rotating shaft, each coil spring drives each positioning rod to turn around the corresponding rotating shaft towards the inner cavity of the positioning pile, and a blocking edge is arranged at the upper edge of each opening and blocks each positioning rod from turning around the rotating shafts towards the inner cavity of the positioning pile;
be equipped with a plurality of reinforcement piles (11) between two adjacent spuds, reinforcement pile fixed mounting is on the lower surface of crossbeam, reinforcement pile is parallel with the spud, be equipped with hollow inner chamber in the reinforcement pile, the upper end port of reinforcement pile extends to on the upper surface of crossbeam, the inner chamber of reinforcement pile and the upper surface intercommunication of crossbeam, the lower extreme port of reinforcement pile is unclosed port, the inner chamber of reinforcement pile communicates with the external world through its lower extreme port.
2. The slope reinforcement device for the municipal buildings according to claim 1, wherein a plurality of openings are distributed on the side surface of the spud at equal angles around the center line of the spud, the openings are elongated openings having a rectangular shape, and the length direction of the openings is the same as the length direction of the spud.
3. The slope reinforcement device for municipal buildings according to claim 2, wherein the number of the openings is four, the lower edges of the openings are at the same distance from the bottom surface of the cavity of the spud, and the width of the openings is not less than five centimeters.
4. The slope reinforcement device for municipal buildings according to claim 1, wherein the lower end ports of the reinforcing piles are higher than the lower end ports of the positioning piles.
5. The slope reinforcement device for municipal buildings according to claim 3, wherein the upper edge of the opening is higher than the upper edge of the airbag, and the height difference between the upper edge of the opening and the upper edge of the airbag is not less than five centimeters.
6. The slope reinforcing device for the municipal building according to claim 1, wherein the number of the reinforcing piles between two adjacent positioning piles is two, the reinforcing piles are circular tube-shaped, and reinforcing steel bars for pouring are embedded in the reinforcing piles.
7. The slope reinforcement device of municipal building according to claim 1, wherein the number of the positioning piles is three, the positioning piles and the reinforcing piles are both in the shape of circular tubes, and the positioning cones are in the shape of cones.
8. The slope reinforcement device of municipal building according to claim 1, wherein the main beams and cross beams are square bars.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111059414.8A CN113756338B (en) | 2021-09-10 | 2021-09-10 | Municipal building's side slope reinforcing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111059414.8A CN113756338B (en) | 2021-09-10 | 2021-09-10 | Municipal building's side slope reinforcing apparatus |
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| Publication Number | Publication Date |
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| CN113756338A CN113756338A (en) | 2021-12-07 |
| CN113756338B true CN113756338B (en) | 2023-03-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111059414.8A Active CN113756338B (en) | 2021-09-10 | 2021-09-10 | Municipal building's side slope reinforcing apparatus |
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| CN (1) | CN113756338B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114197497A (en) * | 2021-12-20 | 2022-03-18 | 国能大渡河流域水电开发有限公司 | Umbrella rib type miniature slide-resistant pile for reinforcing side slope and construction method thereof |
| CN114934689B (en) * | 2022-05-24 | 2024-01-30 | 江苏鸿基节能新技术股份有限公司 | Building shock insulation reinforcing apparatus |
| CN115492121A (en) * | 2022-09-17 | 2022-12-20 | 宁波万基建设有限公司 | Building foundation ditch construction safety supporting structure |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3413108B2 (en) * | 1998-09-04 | 2003-06-03 | 伸吉 大岡 | Backfill member installed under pressure receiving plate for stabilizing slope and backfill method using this backfill member |
| CN106978805A (en) * | 2016-01-16 | 2017-07-25 | 杨学祥 | A kind of inflation soil compaction anchor pole |
| CN106013186B (en) * | 2016-06-21 | 2019-06-14 | 重庆建工第二建设有限公司 | A kind of building municipal works slope reinforcement device |
| CN111636449B (en) * | 2020-06-24 | 2021-09-28 | 四川路桥建设集团交通工程有限公司 | Slope greening structure |
| CN212835376U (en) * | 2020-08-04 | 2021-03-30 | 湖南科技大学 | Can reduce side guard plate resistance and initiatively retrieve anchor rod of aerifing |
| CN112982397A (en) * | 2021-02-05 | 2021-06-18 | 王超 | Recyclable inflatable umbrella-supporting type air bag anchor rod and using method thereof |
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2021
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Address after: 100000 Nord tower 1, 128 South Fourth Ring Road West, Fengtai District, Beijing. Applicant after: China Railway Construction Engineering Group Applicant after: China Railway Construction Group No.2 Construction Co.,Ltd. Address before: 100000 Nord tower 1, 128 South Fourth Ring Road West, Fengtai District, Beijing. Applicant before: China Railway Construction Engineering Group Applicant before: CHINA RAILWAY CONSTRUCTION ENGINEERING GROUP SHANDONG Co.,Ltd. |
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