CN210797533U - Assembled prestressing force underground continuous wall structure - Google Patents
Assembled prestressing force underground continuous wall structure Download PDFInfo
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- CN210797533U CN210797533U CN201921112114.XU CN201921112114U CN210797533U CN 210797533 U CN210797533 U CN 210797533U CN 201921112114 U CN201921112114 U CN 201921112114U CN 210797533 U CN210797533 U CN 210797533U
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 9
- 239000010959 steel Substances 0.000 claims abstract description 9
- 239000002390 adhesive tape Substances 0.000 claims description 33
- 239000011440 grout Substances 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 238000010276 construction Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 238000007569 slipcasting Methods 0.000 description 4
- 241001391944 Commicarpus scandens Species 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 230000008961 swelling Effects 0.000 description 2
- 230000002508 compound effect Effects 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
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Abstract
The utility model discloses an assembled prestressing force underground continuous wall structure, which belongs to the technical field of geotechnical engineering and comprises a plurality of underground continuous wall modules, wherein a plurality of through holes for arranging steel bundles are arranged at the top of each underground continuous wall module, two adjacent underground continuous wall modules are connected through a mortise-tenon structure, the mortise-tenon structure comprises vertical tenons and vertical mortises, the vertical tenons are fixedly arranged at the left sides of the underground continuous wall modules, the vertical mortises are arranged at the right sides of the underground continuous wall modules and matched with the vertical tenons, the tenon-mortise structures are connected through the vertical tenons and the vertical mortises, compared with the direct inserting type joint connecting structure of a T-shaped clamping groove, the stress area can be increased, the problem that the strength of the connecting joint is not enough is solved, then the steel bundles are arranged in the through holes to carry out prestressing force application and grout fixation between the underground continuous wall modules, so that the underground continuous wall is combined and assembled into a complete underground continuous wall structure.
Description
Technical Field
The utility model relates to a geotechnical engineering technical field, more specifically say, relate to an assembled prestressing force underground continuous wall structure.
Background
The underground continuous wall structure is characterized by that on the ground surface of foundation engineering a trenching machine is adopted, along the peripheral axis of deep-trenching engineering, under the condition of slurry wall-protecting the narrow deep groove is excavated, after the groove is cleaned, the reinforcing bar cage is suspended in the groove, then the underwater concrete is poured by means of conduit method to form a unit groove section, so that the above-mentioned steps are implemented section by section, and a continuous reinforced concrete wall is built underground, and can be used as water-stopping, seepage-proofing, bearing and water-retaining structure. With the development and utilization of overground and underground spaces of cities, the construction quantity of deep foundation pit projects is continuously increased, the safety requirements are continuously strict, and the construction speed is continuously improved. The underground diaphragm wall structure is taken as the first link of deep foundation pit engineering, and is also the most important link, and plays an important role in stabilizing the stratum and ensuring the safety of the internal structure of the deep foundation pit in the deep foundation pit engineering construction.
Present assembled prestressing force underground continuous wall structure is the direct card formula of adopting the T type draw-in groove to connect the design on horizontal connection, and this draw-in groove T type cross sectional dimension only is 1/3 of wall thickness, and notch structure is comparatively complicated in addition, and seam slip casting quality is difficult to control for joint strength between two wallboards is far away not enough.
SUMMERY OF THE UTILITY MODEL
1. Technical problem to be solved
Problem to exist among the prior art, the utility model aims to provide an assembled prestressing force underground continuous wall structure possesses improvement interface connection intensity, improves connection quality between the wallboard, increases wall body life's advantage, it is the direct card formula of inserting that adopts T type draw-in groove to connect the design to have solved present assembled prestressing force underground continuous wall structure on horizontal connection, the connection structure cross-section is narrower, including the notch structure comparatively complicated, seam slip casting quality is difficult to control for joint strength between two wallboards is not enough far away.
2. Technical scheme
In order to solve the above problems, the utility model adopts the following technical proposal.
An assembled prestressed underground continuous wall structure comprises a plurality of underground continuous wall modules, wherein the tops of the underground continuous wall modules are provided with a plurality of through holes for arranging steel bundles, two adjacent underground continuous wall modules are connected through a mortise-tenon structure, the mortise-tenon structure comprises vertical tenons and vertical mortises, the vertical tenons are fixedly arranged on the left sides of the underground continuous wall modules, the vertical mortises are arranged on the right sides of the underground continuous wall modules and are matched with the vertical tenons, the underground continuous wall modules are conveyed to a construction site when the assembled prestressed underground continuous wall structure is used, the underground continuous wall modules are installed to proper positions, the plurality of underground continuous wall modules are connected through the vertical tenons and the vertical mortises, the mortise-tenon structure can increase the stress area compared with a direct plug-in type joint connecting structure with a T-shaped clamping groove, and the problem of insufficient strength of a connecting joint is solved, and then arranging steel bundles in the through holes to apply prestress, and grouting and fixing the underground continuous wall modules to combine and assemble the underground continuous wall modules into a complete underground continuous wall structure.
Preferably, vertical tenon includes main tenon, square spacing groove has been seted up in the left side of main tenon, both sides all are provided with trapezoidal tenon piece around the main tenon, and the structure through main tenon and square spacing groove makes the atress position not only concentrate on single tenon tensile, compressive strength big, and connection stability is higher.
Preferably, seam grouting guide pipes are pre-buried in the square limiting grooves and the trapezoid tenon blocks, the number of the seam grouting guide pipes is six, openings at two ends of two of the seam grouting guide pipes are respectively formed in the upper surface and the lower surface of the square limiting grooves and the side surfaces of the square limiting grooves, openings at two ends of four of the seam grouting guide pipes are respectively formed in the upper surface and the lower surface of the trapezoid tenon blocks and the side surfaces of the trapezoid tenon blocks, grouting is conveniently performed in the seams through the seam grouting guide pipes, and connection strength is enhanced.
Preferably, vertical tongue-and-groove includes the main tongue-and-groove, the square protruding piece of inner wall fixedly connected with of main tongue-and-groove, square protruding piece cooperatees with square spacing groove, both sides all are provided with the dovetail around the main tongue-and-groove, the dovetail cooperatees with trapezoidal tenon piece, cooperatees through setting up a plurality of dovetails and trapezoidal tenon piece, compares single tenon of traditional connection structure and bears whole effort, bears total effort because of on two tenons and above with the corotation, and the effort that makes every tenon bear is little, and the tenon is difficult for breaking, improves structural connection intensity.
Preferably, adhesive tapes are arranged on the right side face of the square protruding block and on the front side wall and the rear side wall of the dovetail groove, so that the joint seams can be attached more tightly by arranging the adhesive tapes, and the connecting effect is improved.
Preferably, the adhesive tape is a water swelling type water stopping adhesive tape, the length of the adhesive tape is the same as the upper and lower height of the inner wall of the vertical mortise, the adhesive tape is tightly attached to the vertical mortise, grouting is poured into the joint grouting guide pipe after the two underground diaphragm wall modules are connected, the adhesive tape swells in water, so that the two underground diaphragm wall modules are mutually extruded, the attachment is more tight, and the connection effect is improved.
3. Advantageous effects
Compared with the prior art, the utility model has the advantages of:
(1) when the scheme is used, the underground continuous wall modules are conveyed to a construction site, the underground continuous wall modules are installed to proper positions, a plurality of underground continuous wall modules are connected through the vertical tenons and the vertical mortises by using the mortise-tenon structure, compared with a direct plug-in type joint connecting structure of a T-shaped clamping groove, the mortise-tenon structure can increase the stress area, the problem that the strength of a connecting joint is not enough is solved, then steel bundles are arranged in through holes to apply prestress, grouting and fixing are carried out among the underground continuous wall modules, and the underground continuous wall modules are combined and spliced to form a complete underground continuous wall structure;
(2) according to the scheme, the stress part is not only concentrated on a single tenon due to the structure of the main tenon and the square limiting groove, the tensile strength and the compressive strength are high, and the connection stability is higher;
(3) in the scheme, the joint grouting guide pipe is arranged to facilitate grouting in the joint for fixing, so that the connection strength is enhanced;
(4) according to the scheme, the dovetail grooves are matched with the trapezoidal tenon blocks, compared with a traditional connecting structure that a single tenon bears all acting force, and because two or more tenons bear total acting force in the same rotation, each tenon bears small acting force, the tenons are not easy to break, and the structural connecting strength is improved;
(5) in the scheme, adhesive tapes are arranged on the right side surface of the square bump and on the front side wall and the rear side wall of the dovetail groove, so that the joint seams are attached more tightly by arranging the adhesive tapes, and the connecting effect is improved;
(6) the adhesive tape is for meeting water intumescent stagnant water adhesive tape in this scheme, and the length of adhesive tape is the same with the upper and lower height of vertical tongue-and-groove inner wall, and adhesive tape and vertical tongue-and-groove closely laminate, and the grout is poured into to seam slip casting pipe to two underground continuous wall module connection completion backs, and the adhesive tape meets water inflation for two underground continuous wall modules extrude each other, make the laminating inseparabler, promote the connection effect.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the vertical tongue-and-groove structure of the present invention;
FIG. 3 is a schematic view of the vertical tenon structure of the present invention;
fig. 4 is a top view of the structure of the present invention;
fig. 5 is a schematic view of the structure of the present invention after assembly.
The reference numbers in the figures illustrate:
1. an underground diaphragm wall module; 2. a through hole; 3. a mortise and tenon joint structure; 4. a vertical tenon; 5. a vertical mortise; 6. a joint grouting conduit; 7. an adhesive tape; 401. a main tenon; 402. a square limiting groove; 403. a trapezoidal tenon block; 501. a main mortise; 502. a square bump; 503. a dovetail groove.
Detailed Description
The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention based on the embodiments of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1:
referring to fig. 1, 4 and 5, an assembled prestressed underground diaphragm wall structure comprises a plurality of underground diaphragm wall modules 1, wherein the tops of the underground diaphragm wall modules 1 are provided with a plurality of through holes 2 for arranging steel bundles, two adjacent underground diaphragm wall modules 1 are connected through tenon-and-mortise structures 3, each tenon-and-mortise structure 3 comprises a vertical tenon 4 and a vertical mortise 5, the vertical tenon 4 is fixedly arranged at the left side of each underground diaphragm wall module 1, the vertical mortise 5 is arranged at the right side of each underground diaphragm wall module 1 and is matched with the vertical tenon 4, the underground diaphragm wall modules 1 are transported to a construction site when the assembled prestressed underground diaphragm wall structure is used, the underground diaphragm wall modules 1 are installed to proper positions, the plurality of underground diaphragm wall modules 1 are connected through the vertical tenons 4 and the vertical mortises 5, and the mortise structures 3 can increase the stress area compared with a mortise structure 3 of a direct plug-in type joint connection structure with a T-shaped clamping groove, the problem that the strength of the connecting joint is not enough is solved, then steel bundles are arranged in the through holes 2 to apply prestress, and grouting and fixing are carried out among the underground continuous wall modules 1, so that the underground continuous wall modules are combined and spliced into a complete underground continuous wall structure.
Referring to fig. 3, the vertical tenon 4 includes a main tenon 401, a square limiting groove 402 is formed in the left side of the main tenon 401, trapezoidal tenon blocks 403 are respectively disposed on the front side and the rear side of the main tenon 401, and the structure of the main tenon 401 and the square limiting groove 402 makes the stress portion not only concentrate on a single tenon, but also has high tensile strength and compressive strength, and high connection stability.
Referring to fig. 3, seam grouting guide pipes 6 are embedded in the square limiting groove 402 and the trapezoid tenon block 403, the number of the seam grouting guide pipes 6 is six, openings at two ends of two seam grouting guide pipes 6 are respectively formed in the upper surface and the lower surface of the square limiting groove 402 and the side surface of the square limiting groove 402, openings at two ends of four seam grouting guide pipes 6 are respectively formed in the upper surface and the lower surface of the trapezoid tenon block 403 and the side surface of the trapezoid tenon block 403, grouting in seams is facilitated and fixed by the seam grouting guide pipes 6, and connection strength is enhanced.
Referring to fig. 2 and 3, the vertical mortise 5 includes a main mortise 501, a square protrusion 502 is fixedly connected to an inner wall of the main mortise 501, the square protrusion 502 is matched with the square limiting groove 402, dovetail grooves 503 are respectively formed on the front side and the rear side of the main mortise 501, the dovetail grooves 503 are matched with the trapezoidal tenon 403, and by arranging a plurality of dovetail grooves 503 to be matched with the trapezoidal tenon 403, compared with the conventional connection structure in which a single tenon bears all acting forces, the acting force borne by each tenon is small because two or more tenons bear total acting forces in a co-rotation manner, the tenons are not easily broken, and the structural connection strength is improved.
Referring to fig. 2, adhesive tapes 7 are disposed on the right side surface of the protrusion 502 and the front and rear side walls of the dovetail groove 503, so that the joints are more tightly attached by the adhesive tapes 7, and the connection effect is improved.
Please refer to fig. 4, the adhesive tape 7 is a water-swelling type water-stopping adhesive tape, the length of the adhesive tape 7 is the same as the upper and lower height of the inner wall of the vertical mortise 5, the adhesive tape 7 is tightly attached to the vertical mortise 5, and after the two underground continuous wall modules 1 are connected, grouting is poured into the joint grouting guide pipe 6, and the adhesive tape 7 swells when meeting water, so that the two underground continuous wall modules 1 are mutually extruded, the attachment is more tight, and the connection effect is improved.
The working principle is as follows: when in use, the underground continuous wall modules 1 are transported to a construction site, the underground continuous wall modules 1 are installed to proper positions, a plurality of underground continuous wall modules 1 are connected by using the mortise structure 3 through the vertical tenon 4 and the vertical mortise 5, the vertical tenon 4 comprises a main tenon 401, the left side of the main tenon 401 is provided with a square limiting groove 402, the front side and the rear side of the main tenon 401 are respectively provided with a trapezoid tenon block 403, the stress part is not only concentrated on a single tenon due to the structure of the main tenon 401 and the square limiting groove 402, the tensile strength and the compressive strength are high, the connection stability is higher, the vertical mortise 5 comprises a main mortise 501, the inner wall of the main mortise 501 is fixedly connected with a square protruding block 502, the square protruding block 502 is matched with the square limiting groove 402, the front side and the rear side of the main mortise 501 are respectively provided with dovetail grooves 503, the dovetail grooves 503 are matched with the trapezoid tenon blocks 403, and a plurality of dovetail grooves 503 are arranged, compared with the traditional connection structure that a single tenon bears all acting forces, the tenon is not easy to break because two or more tenons simultaneously rotate to bear total acting forces, the tenon joint structure 3 can increase the stress area and solve the problem of insufficient strength of the connection joint, then steel beams are arranged in through holes 2 for prestress application and grouting and fixing among underground continuous wall modules 1, adhesive tapes 7 are arranged on the right side surface of a square protruding block 502 and the front and rear side walls of a dovetail groove 503, the adhesive tapes 7 are water swelling type water stopping adhesive tapes, the length of the adhesive tapes 7 is the same as the upper and lower height of the inner wall of a vertical mortise 5, the adhesive tapes 7 are tightly attached to the vertical mortise 5, and grouting is poured into a joint grouting guide pipe 6 after the two underground continuous wall modules 1 are connected, adhesive tape 7 meets water inflation, make two underground continuous wall module 1 extrude each other, make the laminating inseparabler, it makes its combination assemble into a complete underground continuous wall structure to promote the compound effect, it adopts the direct card formula of inserting of T type draw-in groove to connect the design to have solved present assembled prestressing force underground continuous wall structure and be the horizontal connection, the connection structure cross-section is narrower, including the notch structure is comparatively complicated, seam slip casting quality is difficult to control, make the joint strength between two wallboards problem that is not enough far away.
The above description is only the preferred embodiment of the present invention; the scope of the present invention is not limited thereto. Any person skilled in the art should also be able to cover the technical scope of the present invention by replacing or changing the technical solution and the improvement concept of the present invention with equivalents and modifications within the technical scope of the present invention.
Claims (7)
1. The utility model provides an assembled prestressing force underground continuous wall structure, includes polylith underground continuous wall module (1), its characterized in that: a plurality of through-holes (2) that are used for setting up the steel bundle are seted up at the top of underground continuous wall module (1), and are two adjacent be connected through tenon fourth of the twelve earthly branches structure (3) between underground continuous wall module (1), tenon fourth of the twelve earthly branches structure (3) include vertical tenon (4) and vertical tongue-and-groove (5), vertical tenon (4) fixed mounting is in the left side of underground continuous wall module (1), vertical tongue-and-groove (5) are seted up on the right side of underground continuous wall module (1) and are cooperateed with vertical tenon (4).
2. The fabricated prestressed underground continuous wall structure of claim 1, wherein: vertical tenon (4) are including main tenon (401), square spacing groove (402) have been seted up in the left side of main tenon (401), both sides all are provided with trapezoidal tenon piece (403) around main tenon (401).
3. The fabricated prestressed underground continuous wall structure of claim 2, wherein: seam grouting guide pipes (6) are pre-buried in the square limiting groove (402) and the trapezoid tenon block (403), the number of the seam grouting guide pipes (6) is six, openings at two ends of the two seam grouting guide pipes (6) are respectively formed in the upper surface and the lower surface of the square limiting groove (402) and the side surface of the square limiting groove (402), and openings at two ends of the four seam grouting guide pipes (6) are respectively formed in the upper surface and the lower surface of the trapezoid tenon block (403) and the side surface of the trapezoid tenon block (403).
4. The fabricated prestressed underground continuous wall structure of claim 1, wherein: the vertical mortise (5) comprises a main mortise (501), the inner wall of the main mortise (501) is fixedly connected with a square protruding block (502), and the square protruding block (502) is matched with the square limiting groove (402).
5. The fabricated prestressed underground continuous wall structure of claim 4, wherein: dovetail grooves (503) are formed in the front side and the rear side of the main mortise (501), and the dovetail grooves (503) are matched with the trapezoidal tenon blocks (403).
6. The fabricated prestressed underground continuous wall structure of claim 4, wherein: adhesive tapes (7) are arranged on the right side surface of the square protruding block (502) and the front side wall and the rear side wall of the dovetail groove (503).
7. The fabricated prestressed underground continuous wall structure of claim 6, wherein: the adhesive tape (7) is a water-swelling type water-stopping adhesive tape, the length of the adhesive tape (7) is the same as the upper and lower heights of the inner wall of the vertical mortise (5), and the adhesive tape (7) is tightly attached to the vertical mortise (5).
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| CN201921112114.XU CN210797533U (en) | 2019-07-16 | 2019-07-16 | Assembled prestressing force underground continuous wall structure |
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| CN201921112114.XU CN210797533U (en) | 2019-07-16 | 2019-07-16 | Assembled prestressing force underground continuous wall structure |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111733853A (en) * | 2020-07-24 | 2020-10-02 | 张延年 | Tongue-and-groove type prefabricated underground continuous wall structure |
| CN112281809A (en) * | 2020-09-27 | 2021-01-29 | 中铁一局集团有限公司 | Steel guide wall for underground continuous wall and construction method thereof |
| CN113863283A (en) * | 2021-09-30 | 2021-12-31 | 中国建筑第八工程局有限公司 | Connecting structure of diaphragm wall and construction method thereof |
| CN114108600A (en) * | 2021-11-26 | 2022-03-01 | 华能清能通榆电力有限公司 | Fan foundation of prefabricated sheet pile assembly type connecting structure and construction method thereof |
| CN114427221A (en) * | 2022-03-15 | 2022-05-03 | 华东交通大学 | Post-tensioned pre-stressed assembled underground continuous wall and installation and construction method |
| CN115262784A (en) * | 2022-07-25 | 2022-11-01 | 叶圣英 | Building heat-insulating material and preparation method thereof |
| CN115288146A (en) * | 2022-01-11 | 2022-11-04 | 浙江理工大学 | Supporting structure and construction method of pit continuous waterproof wall |
| CN115288189A (en) * | 2022-01-11 | 2022-11-04 | 浙江理工大学 | Construction method of pit-well type stereo garage |
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2019
- 2019-07-16 CN CN201921112114.XU patent/CN210797533U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111733853A (en) * | 2020-07-24 | 2020-10-02 | 张延年 | Tongue-and-groove type prefabricated underground continuous wall structure |
| CN112281809A (en) * | 2020-09-27 | 2021-01-29 | 中铁一局集团有限公司 | Steel guide wall for underground continuous wall and construction method thereof |
| CN113863283A (en) * | 2021-09-30 | 2021-12-31 | 中国建筑第八工程局有限公司 | Connecting structure of diaphragm wall and construction method thereof |
| CN114108600A (en) * | 2021-11-26 | 2022-03-01 | 华能清能通榆电力有限公司 | Fan foundation of prefabricated sheet pile assembly type connecting structure and construction method thereof |
| CN114108600B (en) * | 2021-11-26 | 2024-03-29 | 华能清能通榆电力有限公司 | Fan foundation with prefabricated sheet pile assembly type connecting structure and construction method thereof |
| CN115288146A (en) * | 2022-01-11 | 2022-11-04 | 浙江理工大学 | Supporting structure and construction method of pit continuous waterproof wall |
| CN115288189A (en) * | 2022-01-11 | 2022-11-04 | 浙江理工大学 | Construction method of pit-well type stereo garage |
| CN114427221A (en) * | 2022-03-15 | 2022-05-03 | 华东交通大学 | Post-tensioned pre-stressed assembled underground continuous wall and installation and construction method |
| CN115262784A (en) * | 2022-07-25 | 2022-11-01 | 叶圣英 | Building heat-insulating material and preparation method thereof |
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Denomination of utility model: A prefabricated prestressed diaphragm wall structure Effective date of registration: 20210302 Granted publication date: 20200619 Pledgee: Guanggu Branch of Wuhan Rural Commercial Bank Co.,Ltd. Pledgor: WUHAN QIANCHENG PILE WORK TECHNOLOGY Co.,Ltd. Registration number: Y2021420000008 |
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Denomination of utility model: Prefabricated prestressed underground continuous wall structure Effective date of registration: 20220125 Granted publication date: 20200619 Pledgee: Guanggu Branch of Wuhan Rural Commercial Bank Co.,Ltd. Pledgor: WUHAN QIANCHENG PILE WORK TECHNOLOGY CO.,LTD. Registration number: Y2022420000033 |
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Date of cancellation: 20230202 Granted publication date: 20200619 Pledgee: Guanggu Branch of Wuhan Rural Commercial Bank Co.,Ltd. Pledgor: WUHAN QIANCHENG PILE WORK TECHNOLOGY CO.,LTD. Registration number: Y2022420000033 |
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Denomination of utility model: A prefabricated prestressed diaphragm wall structure Effective date of registration: 20230206 Granted publication date: 20200619 Pledgee: Guanggu Branch of Wuhan Rural Commercial Bank Co.,Ltd. Pledgor: WUHAN QIANCHENG PILE WORK TECHNOLOGY CO.,LTD. Registration number: Y2023420000019 |
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