CN214994945U - Assembled partition wall - Google Patents
Assembled partition wall Download PDFInfo
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- CN214994945U CN214994945U CN202120777565.6U CN202120777565U CN214994945U CN 214994945 U CN214994945 U CN 214994945U CN 202120777565 U CN202120777565 U CN 202120777565U CN 214994945 U CN214994945 U CN 214994945U
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Abstract
The utility model relates to an assembly type structure's technical field especially relates to an assembly type partition wall, including the partition wall subassembly, the partition wall subassembly includes partition wall board, the fastener, reserve member and connecting piece, the fastener has at least two sets ofly, partition wall board passes through the fastener and fixes with lower floor, partition wall board passes through the fastener and fixes with last floor, the grout breach has been seted up at the partition wall board top, it buries underground in the breach to reserve member one end, it passes through the connecting piece and is connected with last floor to reserve the member other end, grout breach department is equipped with the baffle, be formed with filling layer one between baffle and the grout breach. The connecting piece improves the connection performance between the partition board and the upper floor slab, and the filling layer is utilized to improve the connection performance between the partition board and the upper floor slab. This application has the effect of improving partition wall wholeness ability.
Description
Technical Field
The application relates to the technical field of assembly type structures, in particular to an assembly type partition wall.
Background
The partition wall refers to a wall partitioning an inner space of a building.
Referring to fig. 1, assembled partition wall includes a plurality of partition wall subassemblies 1 that splice in proper order and connect, and partition wall subassembly 1 includes partition wall board 11, and each partition wall board 11 is equipped with angle sign indicating number 12 in proper order along its length direction one side four corners department respectively, and bolt spare one 13 is all worn to be equipped with to 12 one ends of each angle sign indicating number, and bolt spare two 14 are all worn to be equipped with to 12 other ends of each angle sign indicating number. After a positioning line is released from a lower floor in a floor, the corner brace 12 positioned at the upper corner is fixedly connected with the upper part of the partition plate 11 through a first bolt piece 13 in sequence, and the corner brace 12 positioned at the upper corner is fixedly connected with an upper floor through a second bolt piece 14 in sequence; the corner connectors 12 at the lower corners are fixed with the partition boards 11 sequentially through the first bolt pieces 13, the corner connectors 12 at the lower corners are fixedly connected with the lower floor boards sequentially through the second bolt pieces 14, and mortar is smeared between the adjacent partition boards 11.
With respect to the related art, the inventors consider that: the adjacent partition boards 11 are only filled with mortar, so that the connection performance between the adjacent partition boards 11 is poor, and the partition boards 11 are rigidly fixed through the corner connectors 12, the first bolt pieces 13 and the second bolt pieces 14, so that the connection performance between the partition boards 11 and an upper floor or between the partition boards 11 and a lower floor is poor. In conclusion, the partition wall has poor overall performance.
SUMMERY OF THE UTILITY MODEL
In order to improve the wholeness ability of partition wall, this application provides an assembled partition wall.
The application provides an assembled partition wall adopts following technical scheme:
an assembled partition wall comprises a plurality of partition wall components which are sequentially spliced and connected, wherein each partition wall component comprises a partition wall plate, an angle brace, a first bolt piece and a second bolt piece, the corner connectors, the first bolt pieces and the second bolt pieces are at least two groups, the partition plate is fixed with the lower floor plate through one corner connector, one bolt piece and one bolt piece, the partition board is fixed with the upper floor slab through another corner brace, another bolt piece I and another bolt piece II, and also comprises a connecting component I, the top of the partition board is provided with a grouting gap, the connecting component comprises a reserved rod piece and a connecting piece, one end of the reserved rod piece is embedded in the bottom of the gap, the other end of the reserved rod piece is connected with the upper floor slab through a connecting piece, the grout breach department is equipped with the baffle, the baffle top is less than partition plate upper surface, it is formed with the filling layer one to pour between baffle and the grout breach.
By adopting the technical scheme, after the lower floor in the floor emits the positioning line, mortar is laid in the positioning line area, the partition board is positioned on the upper surface of the lower floor in the floor, and the partition board and the lower floor are fixedly connected by utilizing the corner connector, the first bolt piece and the second bolt piece. Utilize the connecting piece to connect and reserve member and last floor, because the baffle top is less than partition plate top, so can pour the mortar filler in grout breach through the clearance between baffle top and the last floor, and then form filling layer one to realize sealing the grout breach, utilize angle sign indicating number, bolt spare one and bolt spare two fixed connection partition plate and last floor at last. Improve the connection performance between partition wall board and the last floor through the connecting piece to and utilize the filling layer to improve the connection performance between partition wall board and the last floor, thereby make this scheme have the advantage of improving partition wall wholeness ability.
Optionally, the reserved rod piece comprises a vertical reserved rib and a connecting pipe, one end of the vertical reserved rib is embedded in the partition board, and the other end of the vertical reserved rib is in threaded connection with the connecting pipe;
the connecting piece includes expansion link and expansion pipe, expansion link one end threaded connection is in the expansion link, expansion link other end threaded connection keeps away from in the one end of vertical reservation muscle in the connecting pipe, the expansion pipe is used for placing and opens at the bottom of last floor and is equipped with the mounting hole in.
By adopting the technical scheme, the installation hole is formed by drilling the drill rod on the lower surface of the upper floor slab, firstly, a proper amount of structural adhesive is filled in the installation hole, then, the expansion pipe is placed in the installation hole, and then, the expansion rod is in friction self-locking in the expansion pipe so as to fix the expansion pipe and one end of the expansion rod in the installation hole.
Optionally, an installation notch is formed in the bottom of the grouting notch, a clamping strip is arranged on the baffle corresponding to the installation notch, and the clamping strip is abutted to the installation notch.
Through adopting above-mentioned technical scheme, the installation breach diapire has support and restriction effect to the card strip, and when the mortar filler of pouring between baffle and the grout breach, the lateral pressure that flowing mortar filler produced the baffle is difficult to make the baffle take place the displacement.
Optionally, the expansion rod comprises a friction self-locking portion and a connecting portion, one end of the connecting portion is fixedly connected to the friction self-locking portion, the other end of the connecting portion is located in the connecting pipe, one end, far away from the connecting portion, of the friction self-locking portion is located in the expansion pipe, and the inner diameter of the connecting portion is larger than that of the friction self-locking portion.
Through adopting above-mentioned technical scheme, in the friction auto-lock portion screw thread screw in expansion pipe, produce the friction bond stress between expansion pipe deformation and the mounting hole inner wall, and then realize fixed expansion pipe and expansion link, and because the internal diameter of connecting portion is greater than friction auto-lock portion internal diameter, so when connecting portion support tight upper floor, increased the area of contact of expansion link and upper floor, and then improved the connection performance between expansion link and the upper floor.
Optionally, still include coupling assembling three, coupling assembling three reserves muscle one, level including the level and reserves muscle two and sleeve pipe, vertical breach has been seted up respectively to partition wall flange side end, the level is reserved muscle one end and is fixed to be buried underground in vertical breach inner wall, the level is reserved muscle one other end and is reserved muscle two threaded connection through sleeve pipe and level, muscle two is reserved to the level and is kept away from the sleeve pipe and be used for burying underground in adjacent partition wall board.
Through adopting above-mentioned technical scheme, utilize the grout hole to carry the mortar filler in to the bin, and then form filling layer two with anchor reinforcing bar parcel and filling bin, stop the grout when the stable outflow in the discharge gate, and then under the effect of anchor reinforcing bar and filling layer two, improved the connection performance between partition plate bottom and the lower floor.
Optionally, the anchoring reinforcing steel bar is in a shape of a Chinese character 'men', and the end part of the anchoring reinforcing steel bar is embedded in the lower floor slab.
Through adopting above-mentioned technical scheme, the anchor reinforcing bar of door style of calligraphy makes the both ends of anchor reinforcing bar all can bury underground in the floor down, and then improves the connectivity between anchor reinforcing bar and the floor down to improve the connectivity between partition plate and the floor down.
Optionally, still include coupling assembling two, coupling assembling two reserves muscle one, level including the level and reserves muscle two and sleeve pipe, vertical breach has been seted up respectively to partition wall flange side end, the level is reserved muscle one end and is fixed to be buried underground in vertical breach inner wall, the level is reserved muscle one other end and is reserved muscle two threaded connection through sleeve pipe and level, the level is reserved muscle two and is kept away from the sleeve pipe and be used for burying underground in adjacent partition wall board.
Through adopting above-mentioned technical scheme, utilize the mortar to fill the piece between the adjacent partition plate to and reserve muscle one, the level through the level and reserve muscle two and the sleeve pipe and connect gradually adjacent partition plate, improve the connectivity between the adjacent partition plate.
Optionally, a third filling layer is formed on the inner wall of the vertical gap.
Through adopting above-mentioned technical scheme, utilize interim template to seal vertical breach, and carry the mortar filler and then form filling layer three in to vertical breach to realize sealing vertical breach and protection coupling assembling.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the connection performance between the partition board and the upper floor slab is improved through the connecting piece, and the connection performance between the partition board and the upper floor slab is improved through the first filling layer;
2. the expansion rod is frictionally self-locked in the expansion pipe so as to fix the expansion pipe and one end of the expansion rod in the mounting hole;
3. under the action of the anchoring steel bars and the second filling layer, the connection performance between the bottom of the partition board and the lower floor board is improved.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the background art of the present application;
FIG. 2 is a schematic diagram of an overall structure of the embodiment of the present application without a first filling layer, a second filling layer, and a third filling layer;
FIG. 3 is a schematic view of a partial burst structure of the partition wall assembly, the first connecting assembly and the second connecting assembly;
FIG. 4 is a schematic view of a squib structure of the first connecting assembly;
fig. 5 is a schematic overall structure diagram of an embodiment of the present application.
Description of reference numerals: 1. a partition wall assembly; 11. a partition plate; 111. grouting a gap; 112. filling a first layer; 113. a bin; 114. a second filling layer; 115. installing a notch; 116. grouting holes; 117. a slurry outlet; 118. a vertical notch; 12. corner connectors; 13. a first bolt piece; 14. a bolt part II; 2. a first connecting component; 21. reserving a rod piece; 211. vertically reserving ribs; 212. a connecting pipe; 22. a connecting member; 221. an expansion rod; 2211. a friction self-locking portion; 2212. a connecting portion; 222. an expansion tube; 23. a baffle plate; 231. clamping the strip; 3. a second connecting component; 31. anchoring the reinforcing steel bars; 4. connecting components III; 41. horizontally reserving a rib I; 42. horizontally reserving ribs II; 43. a sleeve; 44. and a third filling layer.
Detailed Description
The present application is described in further detail below with reference to figures 2-5.
The embodiment of the application discloses assembled partition wall, fixed mounting refers to 2, fig. 3 in the floor, and it includes partition wall subassembly 1, coupling assembling 2, coupling assembling two 3 and coupling assembling three 4, and partition wall subassembly 1 has a plurality ofly, and a plurality of partition wall subassemblies 1 splice in proper order and connect. The opposite sides of the adjacent partition wall assemblies 1 are fixedly connected through a plurality of connecting assemblies III 4 in sequence, and the opposite sides of the partition wall assemblies 1 at the two ends of the partition wall are fixedly connected with a bearing wall or an upright post in a floor through a plurality of connecting assemblies III 4 in sequence; the top of any partition wall component 1 is fixedly connected with an upper floor through a first connecting component 2, and the bottom of any partition wall component 1 is fixedly connected with a lower floor through a second connecting component 3, so that the overall performance of the partition wall is improved.
Any partition wall subassembly 1 all includes partition wall board 11 and angle sign indicating number 12, and angle sign indicating number 12 has eight groups, and eight groups of angle sign indicating numbers 12 arrange in proper order in partition wall board 11 edge. One end of each corner brace 12 is provided with a first bolt piece 13 in a penetrating mode, the first bolt pieces 13 are bolts and nuts, one end of each first bolt piece 13 is fixedly arranged in the partition wall in a penetrating mode sequentially, and the other end of each first bolt piece 13 is used for fixing the corner brace 12 on the partition wall sequentially; the other end of each corner brace 12 is provided with a second bolt 14 in a penetrating manner, the second bolt 14 is a fastening bolt, the second bolt 14 at the higher position is used for fixing the corresponding corner brace 12 on the upper floor slab, and the second bolt 14 at the lower position is used for fixing the corresponding corner brace 12 on the lower floor slab.
Vertical breach 118 has been seted up respectively along direction of height and width direction's relative lateral wall to partition plate 11, and vertical breach 118 is the rectangle form, and a plurality of coupling assembling three 4 are arranged along the even interval of direction of height of vertical breach 118, and arbitrary coupling assembling three 4 all includes that the muscle is reserved to the level one 41, the muscle is reserved to the level two 42 and sleeve pipe 43. One end of the horizontal reserved rib 41 is fixedly arranged in the inner wall of one adjacent notch in a penetrating mode, the other end of the horizontal reserved rib is connected into the sleeve 43 in a threaded mode, one end, far away from the horizontal reserved rib, of the sleeve 43 is connected into the horizontal reserved rib 42 in a threaded mode, and one end, far away from the sleeve 43, of the horizontal reserved rib 42 is fixedly arranged in the inner wall of the other adjacent notch in a penetrating mode. When the partition board 11 meets an intraformational bearing wall or an upright column, one end of the horizontal reserved rib I41 is embedded in the bearing wall or the upright column, and the other end of the horizontal reserved rib I41 is connected with the partition board 11 through a sleeve 43; or one end of the horizontal reserved rib second 42 is embedded in the bearing wall or the upright column, and the other end of the horizontal reserved rib second 42 is connected with the partition wall board 11 through the sleeve 43, so that the partition wall board 11 is spliced and connected into the partition wall.
The grouting notch 111 is provided with mounting notches 115 from top to bottom, and two mounting notches 115 are arranged at intervals. The baffle 23 corresponds two installation breach 115 fixedly connected with card strips 231 in proper order towards grout breach 111 one side, and the length of two card strips 231 is unanimous with the height of installation breach 115, and two card strips 231 support tightly respectively to inlay to be established in installation breach 115. At this time, the end portions of the baffle 23 are respectively abutted and connected to the corner brace 12, and the baffle 23 and the corner brace 12 can be welded and connected by welding, thereby further performing a measure of reinforcing the baffle 23.
Any partition plate 11 bottom has seted up bin 113, and bin 113 has two and adjacent, and bin 113's setting is rationally designed according to partition plate 11's length. The storehouse 113 is internally abutted and embedded with a plurality of anchoring steel bars 31, the anchoring steel bars 31 are uniformly arranged along the length direction of the storehouse 113 at intervals, the anchoring steel bars 31 are arranged in a shape like a Chinese character 'men', and the two ends of each anchoring steel bar 31 are both used for being embedded in the top of the lower floor slab. Meanwhile, a grouting hole 116 is formed in the lower position of one side of the bin 113, and the inner wall of the grouting hole 116 is communicated with the bin 113; a pulp outlet hole 117 is arranged at the higher position of the other side of the bin 113, and the inner wall of the pulp outlet hole 117 is communicated with the bin 113.
Referring to fig. 2 and 4, the first connecting assembly 2 includes a reserved rod 21 and a connecting member 22, the reserved rod 21 includes a vertical reserved rib 211 and a connecting pipe 212, the connecting member 22 includes an expansion rod 221 and an expansion pipe 222, the bottom end of the vertical reserved rib 211 is embedded in the inner wall of the grouting notch 111, the inner wall of the end of the connecting pipe 212 is in threaded connection with one end of the vertical reserved rib 211, which is far away from the grouting notch 111, and the other end of the connecting pipe 212 is in threaded connection with the connecting member 22. Expansion rod 221 includes friction self-locking portion 2211 and connecting portion 2212, friction self-locking portion 2211 and connecting portion 2212 all are shaft-like, and friction self-locking portion 2211 internal diameter is less than connecting portion 2212, friction self-locking portion 2211 coaxial fixed connection in connecting portion 2212, one end threaded connection that friction self-locking portion 2211 was kept away from to connecting portion 2212 keeps away from the one end inner wall of vertical reserved muscle 211 in connecting pipe 212, friction self-locking portion 2211 screw thread is worn to locate the expansion pipe 222 inner wall. The lower surface of the upper floor slab is provided with a mounting hole, and the inner wall of the mounting hole is coated with a proper amount of structural adhesive, wherein the structural adhesive has the effect of improving the connection performance of the outer wall of the expansion pipe 222 and the inner wall of the mounting hole. The outer wall of the expansion pipe 222 is attached to the inner wall of the mounting hole until the expansion pipe 222 completely enters the mounting hole, then the friction self-locking portion 2211 is slowly screwed into the expansion pipe 222, the expansion pipe 222 starts to expand and deform under the extrusion of the friction self-locking portion 2211, and friction bond force is generated between the outer wall of the expansion pipe 222 after expansion and deformation and the inner wall of the mounting hole, so that the effect of fixing the connecting piece 22 is achieved.
Referring to fig. 2 and 5, a first filling layer 112 is formed between the baffle 23 and the grouting gap 111, and the first filling layer 112 is formed by pouring mortar filler so as to improve the connection performance between the partition board 11 and the upper floor slab; a second filling layer 114 is formed in the grouting opening, and the second filling layer 114 is formed by pouring mortar filler so as to improve the connection performance between the partition board 11 and the lower floor; a third filling layer 44 is formed between the adjacent vertical gaps 118 to improve the connection performance between the adjacent partition boards 11; or a third filling layer 44 is formed between the inner wall of the vertical gap 118 and the bearing wall in the floor, so as to improve the connection performance between the partition board 11 and the bearing wall; or a third filling layer 44 is formed between the vertical gap 118 and the upright in the floor, and the third filling layer 44 is formed by pouring mortar filler, so that the connection performance between the partition board 11 and the upright is improved.
The implementation principle of the embodiment of the application is as follows:
firstly, releasing a positioning line on the upper surface of a lower floor slab in a floor, sequentially embedding the anchoring steel bars 31 in the lower floor slab along the positioning line, sequentially forming mounting holes on the lower surface of an upper floor slab in the floor, and embedding the expansion pipe 222 and the friction self-locking part 2211 of the expansion rod 221 in the mounting holes at the same time;
in the second construction step, the adjacent partition boards 11 are sequentially spliced and connected by using the third connecting component 4, the anchoring steel bars 31 are positioned in the corresponding bin 113, the partition boards 11 and the lower floor slab are fixedly connected by using the corner connectors 12, the first bolt pieces 13 and the second bolt pieces 14, the partition boards 11 and the upper floor slab are fixedly connected by using the corner connectors 12, the first bolt pieces 13 and the second bolt pieces 14, and then the top of the connecting pipe 212 is screwed into the connecting part 2212 of the expansion rod 221;
and finally, conveying mortar filler into the bin 113 through the grouting hole 116, forming a second filling layer 114 after the mortar filler stably overflows from the grout outlet, starting conveying the mortar filler into the baffle 23 and the grouting gap 111 when the second filling layer 114 is stable to form a first filling layer 112, sealing the vertical gap 118 through the temporary template when the first filling layer 112 is stable, and conveying the mortar filler between the inner wall of the vertical gap 118 and the temporary template to form a third filling layer 44.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides an assembled partition wall, includes a plurality of partition wall subassemblies (1) that splice in proper order and connect, partition wall subassembly (1) includes partition wall board (11), angle sign indicating number (12), bolt spare one (13) and bolt spare two (14) all have at least two sets ofly, partition wall board (11) are fixed with the floor down through one of which angle sign indicating number (12), one of which bolt spare one (13) and one of which bolt spare two (14), partition wall board (11) are fixed with the upper floor through another angle sign indicating number (12), another bolt spare one (13) and another bolt spare two (14), characterized in that: still include coupling assembling (2), grout breach (111) have been seted up at partition plate (11) top, coupling assembling (2) are including reserving member (21) and connecting piece (22), it buries underground in the breach bottom to reserve member (21) one end, it passes through connecting piece (22) and is connected with the upper floor to reserve the member (21) other end, grout breach (111) department is equipped with baffle (23), baffle (23) top is less than partition plate (11) upper surface, it is formed with filling layer (112) to pour between baffle (23) and grout breach (111).
2. A fabricated partition as defined in claim 1 in which: the reserved rod piece (21) comprises a vertical reserved rib (211) and a connecting pipe (212), one end of the vertical reserved rib (211) is embedded in the partition board (11), and the other end of the vertical reserved rib (211) is in threaded connection with the connecting pipe (212);
connecting piece (22) are including expansion link (221) and expansion pipe (222), expansion link (221) one end threaded connection is in expansion pipe (222), expansion link (221) other end threaded connection is in connecting pipe (212) keep away from the one end of vertical reservation muscle (211), expansion pipe (222) are used for placing at the bottom of last floor and open and be equipped with the mounting hole in.
3. A fabricated partition as claimed in claim 2, in which: expansion link (221) is including friction self-locking portion (2211) and connecting portion (2212), connecting portion (2212) one end fixed connection is in friction self-locking portion (2211), connecting portion (2212) other end is located connecting pipe (212), the one end that connecting portion (2212) were kept away from in friction self-locking portion (2211) is located expansion pipe (222), just connecting portion (2212) internal diameter is greater than friction self-locking portion (2211) internal diameter.
4. A fabricated partition as defined in claim 1 in which: installation breach (115) have been seted up to grout breach (111) bottom, baffle (23) are equipped with card strip (231) corresponding installation breach (115), card strip (231) butt is located in installation breach (115).
5. A fabricated partition as defined in claim 1 in which: still include coupling assembling two (3), coupling assembling two (3) are including anchor reinforcing bar (31), partition plate (11) bottom is formed with bin (113), grout hole (116) have been seted up to bin (113) one side level, grout outlet (117) have been seted up to bin (113) opposite side, the one end that bin (113) were kept away from in anchor reinforcing bar (31) is used for burying underground in the floor down, just it has filling layer two (114) to pour in bin (113).
6. An assembly partition according to claim 5 wherein: the anchoring steel bars (31) are in a door shape, and the end parts of the anchoring steel bars (31) are buried in the lower floor slab.
7. A fabricated partition as defined in claim 1 in which: still include coupling assembling three (4), coupling assembling three (4) reserve muscle two (42) and sleeve pipe (43) including the level, vertical breach (118) have not been seted up to partition board (11) avris tip, the level is reserved muscle one (41) one end and is fixed to be buried underground in vertical breach (118) inner wall, muscle two (42) threaded connection is reserved through sleeve pipe (43) and level to muscle one (41) other end is reserved to the level, muscle two (42) are reserved to the level and sleeve pipe (43) are kept away from to the level and are used for burying underground in adjacent partition board (11).
8. An assembly partition according to claim 7 wherein: and a third filling layer (44) is formed on the inner wall of the vertical notch (118).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120777565.6U CN214994945U (en) | 2021-04-15 | 2021-04-15 | Assembled partition wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120777565.6U CN214994945U (en) | 2021-04-15 | 2021-04-15 | Assembled partition wall |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214994945U true CN214994945U (en) | 2021-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120777565.6U Active CN214994945U (en) | 2021-04-15 | 2021-04-15 | Assembled partition wall |
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| CN (1) | CN214994945U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114961425A (en) * | 2022-06-20 | 2022-08-30 | 北京崇建工程有限公司 | Waterproof guide wall and construction method thereof |
| RU2782803C1 (en) * | 2021-12-23 | 2022-11-02 | Общество С Ограниченной Ответственностью "Блик Груп" | Method for concealed mounting of decorative rack partitions and a system of fasteners for its implementation |
-
2021
- 2021-04-15 CN CN202120777565.6U patent/CN214994945U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2782803C1 (en) * | 2021-12-23 | 2022-11-02 | Общество С Ограниченной Ответственностью "Блик Груп" | Method for concealed mounting of decorative rack partitions and a system of fasteners for its implementation |
| CN114961425A (en) * | 2022-06-20 | 2022-08-30 | 北京崇建工程有限公司 | Waterproof guide wall and construction method thereof |
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