CN116411593A - Slurry stopping device for preventing vertical joint of prefabricated diaphragm wall from flowing around and construction method - Google Patents
Slurry stopping device for preventing vertical joint of prefabricated diaphragm wall from flowing around and construction method Download PDFInfo
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- CN116411593A CN116411593A CN202310330401.2A CN202310330401A CN116411593A CN 116411593 A CN116411593 A CN 116411593A CN 202310330401 A CN202310330401 A CN 202310330401A CN 116411593 A CN116411593 A CN 116411593A
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- 239000002002 slurry Substances 0.000 title claims abstract description 49
- 238000010276 construction Methods 0.000 title claims abstract description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 70
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 42
- 239000010959 steel Substances 0.000 claims abstract description 42
- 238000002347 injection Methods 0.000 claims abstract description 22
- 239000007924 injection Substances 0.000 claims abstract description 22
- 239000004568 cement Substances 0.000 claims description 6
- 239000011440 grout Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 3
- 230000000087 stabilizing effect Effects 0.000 claims description 3
- 239000007788 liquid Substances 0.000 abstract 2
- 238000007569 slipcasting Methods 0.000 abstract 2
- 210000002421 cell wall Anatomy 0.000 abstract 1
- 230000011218 segmentation Effects 0.000 abstract 1
- 239000000203 mixture Substances 0.000 description 4
- 239000000243 solution Substances 0.000 description 3
- 230000015271 coagulation Effects 0.000 description 2
- 238000005345 coagulation Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 238000004073 vulcanization Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/16—Arrangement or construction of joints in foundation structures
-
- 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
- E02D5/20—Bulkheads or similar walls made of prefabricated parts and concrete, including reinforced concrete, in situ
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Bulkheads Adapted To Foundation Construction (AREA)
Abstract
The invention belongs to the field of underground structural engineering, and particularly discloses a slurry stopping device for preventing a prefabricated wall-connected vertical joint from flowing around and a construction method. When needs segmentation are carried out at the bottom of the wall and lateral wall slip casting is filled, insert this section end inslot with stopping the thick liquid device, water injection in the ground passes through the steel water pipe to the rubber bag, along with the water injection bag expands gradually, gradually discharge the mud in the end inslot, until the rubber bag expands to hug closely the ditch cell wall, prefabricated wall vertical joint face even, play the vertical joint face even wall of protection and do not by the parcel of lateral wall slip casting thick liquid even, can guarantee that follow-up slot section prefabricated wall even inserts smoothly and assembles the construction.
Description
Technical Field
The invention belongs to the field of underground structural engineering, and particularly relates to a slurry stopping device for preventing a prefabricated underground wall vertical joint from flowing around and a construction method.
Background
At present, when foundation pit engineering is excavated in a busy urban area, the traditional underwater pouring underground continuous wall construction is adopted, so that the road is often occupied for a long time, traffic is influenced, the construction efficiency is low, the construction quality is difficult to ensure, and adverse effects on the surrounding environment are very easy to cause. The prefabricated wall has the advantages of standardized production in batches, controllable quality, quick construction progress and the like, and meets the requirements of energy conservation and environmental protection.
When the prefabricated diaphragm wall is constructed by adopting a conventional slurry retaining wall for grooving, slurry is filled in gaps between the prefabricated diaphragm wall which is hung and assembled into the groove and the bottom and the side wall of the groove, the prefabricated diaphragm wall cannot be fixed, and cement-based slurry injection is needed for replacement. When cement-based slurry is injected after the underground continuous wall is hoisted, the slurry can flow into the end groove of the groove, so that the problems of blockage of vertical joints of the prefabricated underground continuous wall, coagulation of slurry in the end groove and non-excavated soil are caused, and the subsequent prefabricated underground continuous wall cannot be assembled.
Disclosure of Invention
In order to solve the technical problems, the invention provides a grout stopping device for preventing a prefabricated wall-connected vertical joint from flowing around, which is characterized by comprising a rubber bag arranged in a prefabricated wall-connected end groove and a steel water pipe arranged on the rubber bag, wherein the rubber bag is tightly attached to the side wall of the prefabricated wall-connected end groove and a vertical seam of the prefabricated wall-connected after being injected with water and expanded through the steel water pipe; the lower part of the rubber bag is integrally vulcanized and formed with a steel water pipe, and the steel water pipe is communicated with the inner cavity of the rubber bag through a channel.
Preferably, the rubber ring is integrally vulcanized on the upper part of the rubber bag, and the upper part of the steel water pipe penetrates through the rubber ring to be connected with the rubber bag.
Preferably, the steel water pipe is arranged in sections, and the sections are detachably connected through threads.
Preferably, the steel water pipe water filling port is provided with a valve for maintaining the water pressure inside the rubber bag.
Preferably, the cross section of the rubber bag is circular when in vulcanization, and the cross section of the rubber bag after water injection expansion is 1.2 times of the cross section of the end socket groove, namely
Wherein D is the outer diameter of the cross section of the rubber bag after expansion, L is the length of the end groove, and B is the width of the end groove.
Preferably, the wall thickness of the rubber bag is 2mm or 3mm, or a proper thickness is selected according to field test.
The invention also provides a construction method for preventing the prefabricated wall-connected vertical joint from flowing around, which is characterized by comprising the following steps:
s1: constructing a diaphragm wall groove by adopting conventional slurry wall protection grooving;
s2: hoisting prefabricated underground continuous walls, and sequentially and continuously inserting the prefabricated underground continuous walls into the grooves;
s3, after a plurality of ground continuous walls are constructed, when grouting filling is needed to be carried out on the bottom and the side walls of the wall section by section, the grouting stopping device is inserted into an end groove of the section;
s4: injecting water into the rubber bag through the steel water pipe on the ground, gradually discharging slurry in the end groove along with gradual expansion of the water injection bag;
s5: the water injection is stopped until the rubber bag is expanded to be closely attached to the groove wall and the vertical joint surface of the prefabricated diaphragm wall, and the stable pressure is maintained, so that the vertical joint surface of the prefabricated diaphragm wall is protected from being wrapped by the side wall grouting slurry, and the prefabricated diaphragm wall of the subsequent groove section can be smoothly inserted into and assembled with the construction;
s6: after grouting of the prefabricated diaphragm wall bottom and side wall and slurry initial setting are completed, gradually pumping out the water body in the rubber bag through a steel water pipe, and synchronously injecting slurry stabilizing groove walls into the end groove;
s7: and (5) pulling out the rubber bag, and repeating the steps S1-S7 until the construction is completed.
Preferably, the water injection pressure of the rubber bag is determined by the depth of the end groove, and the water injection pressure p=1.2×γ×h, wherein γ is the weight of the slurry, and H is the depth of the end groove.
Preferably, the thickness of the prefabricated wall is smaller than the width of the groove, and the slurry in the gap between the bottom and the side wall of the wall is replaced by cement-based slurry after the wall is assembled.
Preferably, a wall bottom grouting pipe and a wall side grouting pipe are pre-embedded in the manufactured ground continuous wall, and the grouting pipe is made of PVC or steel; the wall bottom grouting pipe extends into the bottom of the prefabricated underground continuous wall; the wall side grouting pipe is divided into two branches at a certain height above the wall bottom and respectively extends into two side parts of the underground continuous wall, and a one-way check valve is arranged at the end of the wall side grouting pipe extending out of the side part of the underground continuous wall.
Preferably, after the prefabricated diaphragm wall is assembled, a certain length of end groove is reserved at the end part, and the end groove is filled with slurry.
Preferably, the prefabricated wall is in the form of a concave-convex tenon, a pre-embedded C-shaped channel steel piece or the combination of the concave-convex tenon and the steel piece.
The invention has the beneficial effects that: the slurry stopping device and the construction method provide vertical joint protection measures for the prefabricated underground continuous wall sectional construction, and are convenient for site flexible organization construction; the end of the prefabricated wall trench is plugged and stopped by injecting water into the rubber bag, so that the method has the advantages of high construction speed, low construction cost and the like, and can effectively prevent the problems of plugging of vertical joints of the prefabricated wall, coagulation of slurry in the end trench and non-excavated soil and the like; filling of the end groove can be effectively realized through water injection and drainage in the rubber bag, and the injected and drained water can be temporarily stored in a water tank on the ground, so that waste is not generated, and the environment is protected; the steel water pipes at the side parts of the rubber bags are connected into a whole through screw threads in construction, thereby being convenient and quick.
Drawings
In order to more clearly illustrate the invention or the technical solutions of the prior art, the drawings used in the description of the invention or the prior art will be briefly described, it being obvious that the drawings in the description below are some embodiments of the invention, and that other drawings can be obtained from these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a plan view of a prefabricated wall end trough of the present invention in a mud-guard condition;
FIG. 2 is a longitudinal elevational view of the prefabricated wall end trough of the present invention in a mud-guard condition;
FIG. 3 is a plan view of the present invention with the head tank and prefabricated wall panel side walls filled with mud;
FIG. 4 is a cross-sectional elevation view of a pre-buried wall bottom grouting pipe and a wall side grouting pipe in a prefabricated wall according to the present invention;
FIG. 5 is an illustration of the insertion of a rubber bladder into a prefabricated wall end socket of the present invention;
FIG. 6 is a view showing the initial water injection expansion of the rubber bladder inserted into the prefabricated wall end socket of the present invention;
FIG. 7 is a plan view showing a state that a rubber bag inserted into a groove at the end of a prefabricated diaphragm wall is tightly attached to a vertical seam of a groove and the diaphragm wall after being expanded;
FIG. 8 is a longitudinal elevation view of the water injection expansion of a rubber bladder inserted into a prefabricated wall end socket of the present invention;
FIG. 9 is a longitudinal elevation view showing a state that a rubber bag inserted into a groove at the end of a prefabricated diaphragm wall is tightly attached to a vertical seam of the groove and the diaphragm wall after being expanded;
FIG. 10 is a composition of the rubber pouch of the present invention;
FIG. 11 is a section 1-1 of the rubber pouch composition of the present invention;
FIG. 12 is a 2-2 cross-sectional view of the rubber bladder composition of the present invention;
FIG. 13 is a 3-3 cross-sectional view of the rubber bladder composition of the present invention;
FIG. 14 is one form of a prefabricated wall panel vertical joint strip C-section steel member of the present invention;
FIG. 15 is one form of the prefabricated wall panel tongue and groove of the present invention;
FIG. 16 is a form of prefabricated wall panel vertical joint strip rebates and steel members of the present invention;
Detailed Description
The invention further provides a slurry stopping device and a construction method for protecting and preventing a vertical joint from flowing around during grouting of a prefabricated wall bottom and a side wall of a ground continuous wall, and the device and the method are described below with reference to drawings and specific embodiments. The following examples are only illustrative of the invention and are not intended to be limiting.
In the embodiment, as shown in fig. 10-13, the invention provides a slurry stopping device for preventing a prefabricated wall-connected vertical joint from flowing around, which comprises a rubber bag arranged in a prefabricated wall-connected end groove and a steel water pipe arranged on the rubber bag, wherein the rubber bag is tightly attached to the side wall of the prefabricated wall-connected end groove and a vertical seam of the prefabricated wall-connected end groove after being inflated by water injection of the steel water pipe; the lower part of the rubber bag is integrally vulcanized and formed with a steel water pipe, the steel water pipe is communicated with the inner cavity of the rubber bag through a channel, and water can be injected into the rubber bag through the steel water pipe on the ground.
The upper part of the rubber bag is integrally vulcanized with a rubber ring, the steel water pipe is arranged in sections, the sections are detachably connected through threads, and the upper part of the steel water pipe penetrates through the rubber ring and is connected with the rubber bag. The steel water pipes at the side parts of the rubber bags are connected into a whole through screw threads in construction, thereby being convenient and quick.
The steel water pipe water filling port is provided with a valve for maintaining the water pressure in the rubber bag, so that slurry is prevented from flowing around to the surface of the vertical wall seam when the bottom and the side wall of the prefabricated diaphragm wall are grouted.
The cross section of the rubber bag is circular when in vulcanization, and the cross section of the rubber bag after water injection expansion is 1.2 times of the cross section of the end groove, namely
Wherein D is the outer diameter of the cross section of the rubber bag after expansion, L is the length of the end groove, and B is the width of the end groove. The cross section area of the expanded rubber bag is larger than that of the end groove, so that the rubber bag can be fully contacted with the end groove and the prefabricated wall side wall.
In the conventional case, the wall thickness of the rubber bag can be 2mm or 3mm, and other suitable thicknesses can be selected according to field test.
The water injection pressure of the rubber bag is determined by the depth of the end groove, and the water injection pressure P=1.2×γ×H, wherein γ is the weight of the slurry, and H is the depth of the end groove.
The invention also provides a construction method for preventing the prefabricated wall-connected vertical joint from flowing around, as shown in fig. 1 to 9, the construction method comprises the following steps:
the first step: constructing a surrounding fence, leveling a site, performing traffic dispersion, and adopting a slurry retaining wall to perform underground diaphragm wall grooving construction;
and a second step of: hoisting the prefabricated underground continuous wall, and sequentially and continuously inserting the prefabricated underground continuous wall into the groove;
and a third step of: after constructing a plurality of ground continuous walls, when grouting filling is needed to be carried out on the bottom and the side walls of the walls in a segmented way, inserting a rubber bag provided with a steel water pipe into an end groove of the section;
fourth step: injecting water into the rubber bag through the steel water pipe on the ground, gradually expanding along with the water injection bag, and gradually discharging mud in the end groove;
fifth step: the water injection is stopped until the rubber bag is expanded to be closely attached to the groove wall and the vertical joint surface of the prefabricated diaphragm wall, and the stable pressure is maintained, so that the vertical joint surface of the prefabricated diaphragm wall is protected from being wrapped by the side wall grouting slurry, and the prefabricated diaphragm wall of the subsequent groove section can be smoothly inserted into and assembled with the construction;
sixth step: after grouting of the prefabricated diaphragm wall bottom and side wall and slurry initial setting are completed, gradually pumping out the water body in the rubber bag through a steel water pipe, and synchronously injecting slurry stabilizing groove walls into the end groove;
seventh step: the rubber bag is pulled out, the conventional slurry wall protection grooving construction is continued to form a diaphragm wall groove, the subsequent diaphragm wall is assembled, and grouting of the wall bottom and the side wall and the protection of the sectioned vertical joint are carried out by adopting the scheme until the construction is completed.
As shown in fig. 3, the thickness of the prefabricated wall is smaller than the width of the groove, a certain length of end groove is reserved at the end part after the prefabricated wall is assembled, and the end groove is filled with conventional slurry. After the diaphragm wall is assembled, the slurry in the gaps between the bottom and the side walls of the diaphragm wall needs to be replaced by cement-based slurry, so that the diaphragm wall is firmly prefabricated.
As shown in fig. 4, a wall bottom grouting pipe and a wall side grouting pipe are pre-embedded in the prefabricated underground continuous wall, and the grouting pipe is made of PVC or steel; the wall bottom grouting pipe extends into the bottom of the prefabricated underground continuous wall; the wall side grouting pipe is divided into two branches at a certain height above the wall bottom and respectively extends into two side parts of the prefabricated diaphragm wall, a one-way check valve is arranged at the end, extending out of the side parts of the prefabricated diaphragm wall, of the wall side grouting pipe, and cement-based slurry at the waterproof bottom enters the side grouting pipe to block the pipeline.
As shown in fig. 14-16, the prefabricated wall is in the form of a rebate, a pre-buried C-shaped channel steel member or a combination of rebates and steel members.
The invention provides a slurry stopping device and a construction method for protecting and preventing the vertical joints at the ends of a trough section during grouting of the bottom and the side wall of a prefabricated diaphragm wall, which have the advantages of high construction speed, convenient construction, good slurry stopping performance, repeated use and low construction cost, solve the problems of blockage of vertical joints of the prefabricated diaphragm wall, difficult wall brushing, influence on subsequent assembly and the like caused by slurry flowing into the trough at the end when the bottom and the side wall of the conventional prefabricated diaphragm wall are grouted, and can effectively promote the application of the prefabricated diaphragm wall in underground engineering.
Finally, it should be noted that: the above embodiments are only for illustrating the present invention and not for limiting the technical solution described in the present invention; thus, although the present invention has been described in detail with reference to the above embodiments, it will be understood by those skilled in the art that the present invention may be modified or equivalent; all technical solutions and modifications thereof that do not depart from the spirit and scope of the present invention are intended to be included in the scope of the appended claims.
Claims (12)
1. The grout stopping device is characterized by comprising a rubber bag arranged in a prefabricated wall end groove and a steel water pipe arranged on the rubber bag, wherein the rubber bag is tightly attached to the side wall of the prefabricated wall end groove and a vertical seam of the prefabricated wall after being inflated by water injection through the steel water pipe; the lower part of the rubber bag is integrally vulcanized and formed with a steel water pipe, and the steel water pipe is communicated with the inner cavity of the rubber bag through a channel.
2. The grout stop device of claim 1 wherein the rubber bladder upper portion is integrally vulcanized with a rubber ring and the steel water pipe upper portion is connected to the rubber bladder through the rubber ring.
3. The slurry stopping device according to claim 2, wherein the steel water pipe is arranged in sections, and the sections are detachably connected through threads.
4. A grout stop as claimed in claim 3 wherein the steel water pipe water filling port is provided with a valve for maintaining the water pressure inside the rubber bag.
5. The slurry stopping device according to claim 4, wherein the cross section of the rubber bag is circular when the rubber bag is vulcanized, and the cross section of the rubber bag after water injection expansion is 1.2 times of the cross section of the end groove, namely
Wherein D is the outer diameter of the cross section of the rubber bag after expansion, L is the length of the end groove, and B is the width of the end groove.
6. The slurry stop device according to claim 1, wherein the rubber bladder wall thickness is 2mm or 3mm, or a suitable thickness is selected based on field test.
7. The construction method for preventing the prefabricated underground continuous wall vertical joint from flowing around is characterized by comprising the following steps of:
s1: constructing a diaphragm wall groove by adopting conventional slurry wall protection grooving;
s2: hoisting prefabricated underground continuous walls, and sequentially and continuously inserting the prefabricated underground continuous walls into the grooves;
s3, after constructing a plurality of ground continuous walls, when grouting filling is needed to be carried out on the bottom and the side walls of the wall section by section, inserting the grouting device according to any one of claims 1-6 into the end groove of the section;
s4: injecting water into the rubber bag through the steel water pipe on the ground, gradually discharging slurry in the end groove along with gradual expansion of the water injection bag;
s5: the water injection is stopped until the rubber bag is expanded to be closely attached to the groove wall and the vertical joint surface of the prefabricated diaphragm wall, and the stable pressure is maintained, so that the vertical joint surface of the prefabricated diaphragm wall is protected from being wrapped by the side wall grouting slurry, and the prefabricated diaphragm wall of the subsequent groove section can be smoothly inserted into and assembled with the construction;
s6: after grouting of the prefabricated diaphragm wall bottom and side wall and slurry initial setting are completed, gradually pumping out the water body in the rubber bag through a steel water pipe, and synchronously injecting slurry stabilizing groove walls into the end groove;
s7: and (5) pulling out the rubber bag, and repeating the steps S1-S7 until the construction is completed.
8. The method according to claim 7, wherein the water injection pressure of the rubber bag p=1.2×γ×h, where γ is the weight of the slurry and H is the depth of the head groove.
9. The construction method according to claim 7, wherein the prefabricated underground continuous wall is internally embedded with a wall bottom grouting pipe and a wall side grouting pipe, and the grouting pipe is made of PVC or steel; the wall bottom grouting pipe extends into the bottom of the prefabricated underground continuous wall; the wall side grouting pipe is divided into two branches at a certain height above the wall bottom and respectively extends into two side parts of the underground continuous wall, and a one-way check valve is arranged at the end of the wall side grouting pipe extending out of the side part of the underground continuous wall.
10. The method according to claim 7, wherein the prefabricated wall thickness is smaller than the trench width, and the slurry in the gap between the bottom and the side wall is replaced with cement-based slurry after the prefabricated wall is assembled.
11. The construction method according to claim 7, wherein a certain length of end groove is left at the end after the prefabricated wall is assembled, and the end groove is filled with slurry.
12. The construction method according to claim 7, wherein the prefabricated wall panel is in the form of a tongue-and-groove, a pre-buried C-channel member, or a combination of a tongue-and-groove and a steel member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310330401.2A CN116411593A (en) | 2023-03-30 | 2023-03-30 | Slurry stopping device for preventing vertical joint of prefabricated diaphragm wall from flowing around and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310330401.2A CN116411593A (en) | 2023-03-30 | 2023-03-30 | Slurry stopping device for preventing vertical joint of prefabricated diaphragm wall from flowing around and construction method |
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| Publication Number | Publication Date |
|---|---|
| CN116411593A true CN116411593A (en) | 2023-07-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310330401.2A Pending CN116411593A (en) | 2023-03-30 | 2023-03-30 | Slurry stopping device for preventing vertical joint of prefabricated diaphragm wall from flowing around and construction method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116988454A (en) * | 2023-09-27 | 2023-11-03 | 中建交通建设集团有限公司 | Assembled underground diaphragm wall and construction method |
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2023
- 2023-03-30 CN CN202310330401.2A patent/CN116411593A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116988454A (en) * | 2023-09-27 | 2023-11-03 | 中建交通建设集团有限公司 | Assembled underground diaphragm wall and construction method |
| CN116988454B (en) * | 2023-09-27 | 2023-12-15 | 中建交通建设集团有限公司 | Assembled underground diaphragm wall and construction method |
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