CN113863282A - Continuous large-diameter pipeline underground diaphragm wall section construction method - Google Patents
Continuous large-diameter pipeline underground diaphragm wall section construction method Download PDFInfo
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- CN113863282A CN113863282A CN202111072430.0A CN202111072430A CN113863282A CN 113863282 A CN113863282 A CN 113863282A CN 202111072430 A CN202111072430 A CN 202111072430A CN 113863282 A CN113863282 A CN 113863282A
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- 238000010276 construction Methods 0.000 title claims abstract description 62
- 230000002787 reinforcement Effects 0.000 claims abstract description 79
- 238000000034 method Methods 0.000 claims abstract description 36
- 238000013519 translation Methods 0.000 claims abstract description 36
- 239000002689 soil Substances 0.000 claims abstract description 18
- 229910000831 Steel Inorganic materials 0.000 claims description 33
- 239000010959 steel Substances 0.000 claims description 33
- 238000004140 cleaning Methods 0.000 claims description 11
- 239000007789 gas Substances 0.000 claims description 11
- 238000009432 framing Methods 0.000 claims description 9
- 239000002002 slurry Substances 0.000 claims description 8
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000000746 purification Methods 0.000 claims description 4
- 238000005553 drilling Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 239000003973 paint Substances 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims description 3
- 239000013049 sediment Substances 0.000 claims description 3
- 238000004062 sedimentation Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims 1
- 238000012546 transfer Methods 0.000 description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Images
Classifications
-
- 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
- E02D5/18—Bulkheads or similar walls made solely of concrete in situ
- E02D5/187—Bulkheads or similar walls made solely of concrete in situ the bulkheads or walls being made continuously, e.g. excavating and constructing bulkheads or walls in the same process, without joints
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/08—Sinking workpieces into water or soil inasmuch as not provided for elsewhere
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F5/00—Dredgers or soil-shifting machines for special purposes
- E02F5/02—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches
Abstract
The invention discloses a continuous large-diameter pipeline underground diaphragm wall sectional construction method, which can prevent pipelines from being damaged while considering high-quality construction of underground diaphragm walls because pipelines cannot be moved and changed due to some reasons in site construction and partial pipeline groups cross or obliquely cross the upper part of the underground diaphragm wall, and can meet the size of a grab bucket of a trenching machine by adjusting the width of a groove in a width-dividing manner and remove soil below the pipelines to the greatest extent. Removing residual soil mass of the underground diaphragm wall below the pipeline by using a gas lift method; after soil bodies below the pipeline are removed and meet the standard requirements of grooving, two reinforcement cages are arranged below the groove in a segmented mode by a translation method, and the reinforcement cages are accurately placed in place through hoisting and translation. The method adopts a gas lift grooving method and a translation method to accurately position the reinforcement cage, ensures the construction quality of the diaphragm wall, accelerates the construction progress, and further saves the cost of changing the pipeline money and the construction cost.
Description
Technical Field
The invention belongs to the technical field of construction of rail transit engineering and constructional engineering, and particularly relates to a section construction method for a diaphragm wall under a continuous large-diameter pipeline.
Background
At present, various pipelines with large pipe diameters are often foreseen in urban rail transit construction and building engineering construction, and the situation that various pipeline groups cross or obliquely cross the underground diaphragm wall is often foreseen in the construction process of the underground diaphragm wall of the foundation pit enclosure structure. Underground pipelines are complicated in an intricate mode, and partial pipelines are restricted by various factors in early stage to cause longer moving and modifying period or huge moving and modifying cost, so that the investment of pipeline modifying cost and the guarantee of construction progress are reduced, a plurality of continuous large-diameter pipelines are still arranged above a foundation pit diaphragm wall after being modified, the condition that the pipelines and the diaphragm wall are crossed exists, and difficulty is caused to the construction of the diaphragm wall. Therefore, other solutions are needed to solve the problem of high quality normal construction of diaphragm walls when pipelines cross or inclined spans are not moved and changed.
Disclosure of Invention
In order to overcome the technical problems in the prior art, the invention provides a section construction method for the underground diaphragm wall under the continuous large-diameter pipeline, which ensures the construction quality of the underground diaphragm wall under the existing pipeline, ensures the engineering progress, indirectly saves the engineering cost and solves the technical problems by adjusting the groove width and the breadth of the underground diaphragm wall, crossing the protection of the underground diaphragm wall pipeline, processing a gas-lift reverse circulation soil body, hoisting a reinforcement cage in a width-dividing way, horizontally moving and positioning the reinforcement cage, pouring the underground diaphragm wall and other construction procedures.
The invention relates to a continuous large-diameter pipeline underground diaphragm wall segmental construction method, which comprises the following construction steps:
a: according to the type and the state of the continuous large-diameter pipeline, 3mm thick steel plates are arranged on the periphery of the large-diameter pipeline, the end heads of the steel plates are welded with guide wall reinforcing steel bars, the whole large-diameter pipeline is used as a protective body and marked by red and yellow paint, the width of the underground diaphragm wall at the pipeline position is reasonably adjusted according to the width, the position and the site construction environment of the large-diameter pipeline, and the two sides of the pipeline can meet the width of a grab bucket of a trenching machine;
b: after enclosing the large-diameter pipeline, a grooving machine is used for removing soil mass at the groove section of the large-diameter pipeline, the rest soil mass is removed by adopting a gas-lift reverse circulation method, compressed air generated by an air compressor is conveyed to a slurry-gas mixer through an annular gap between an inner pipe and an outer pipe of an airtight type transmission rod by virtue of a gas-lift reverse circulation drilling head, and then enters a guide pipe, so that three-phase flow of gas, liquid and solid is taken out of a hole at high speed, finally discharged into a sedimentation tank through a slurry purification device, and the sedimentated slurry enters back into the hole, and a process of continuously cleaning the soil mass and sediments is formed through repeated circulation;
c: after the grooving of the large-diameter pipeline groove section is finished, the single-side locking pipe is placed, the first reinforcement cage is hoisted and placed, the second reinforcement cage is placed in place and fixed, the first translation amount is 600mm-800mm due to the fact that the distance between a lifting lug of a reinforcement cage head and a cage edge is 600mm-800mm, the first translation amount is 600mm-800mm, the first translation is placed in place, the first translation is changed to a middle lifting point of the reinforcement cage according to reasonable calculation, secondary swinging translation is carried out, the locking pipe is placed after the translation is finished, and the verticality of the reinforcement cage is ensured;
d: detecting whether the bottom of the steel reinforcement cage is translated in place or not, adopting a post-lowering locking pipe construction process, lowering the first locking pipe strictly according to a framing line, adopting a total station for detecting the verticality of the locking pipe in the whole process of lowering, indicating that the second steel reinforcement cage is translated in place after the first locking pipe is successfully lowered according to the framing line, and if necessary, lowering the second locking pipe at the end of the translating steel reinforcement cage and extruding the lower part of the steel reinforcement cage again;
e: and before concrete pouring, secondary hole cleaning treatment is carried out, the concrete pouring is carried out by adopting a conduit method, the fore shaft pipe starts to be pulled out 4-5 hours after the concrete pouring is started, the fore shaft pipe is lifted once every 30 minutes, the amplitude of the fore shaft pipe is not more than 50-100 mm, and the fore shaft pipe is pulled out 7-9 hours after the concrete pouring is finished.
According to the underground diaphragm wall segmental construction method for the continuous large-diameter pipeline, the width of the large-diameter pipeline is 800mm-1200 mm.
In the step a, after the framing line and the grooving width are determined, a safety distance of 100mm is reserved from a grabbing distance of the grooving machine to the pipeline side according to the size of the grab bucket, and the vertical swinging amplitude of the reinforcement cage is not less than 2.5m to ensure normal vertical swinging and translation of the reinforcement cage.
In the construction method for the underground diaphragm wall section of the continuous large-diameter pipeline, the first reinforcement cage and the second reinforcement cage in the step c are divided into two I-shaped reinforcement cages and are provided with primary and secondary joint forms, and the two reinforcement cages integrally belong to thin and long types.
After the grooving construction in the step c is completed, the first locking pipe is lowered, the first reinforcement cage on the side of the lowered locking pipe is hoisted, the first reinforcement cage is fixed by the penetrating rod after the first reinforcement cage is lowered in place, the second reinforcement cage is lowered, the first swinging translation is carried out after the first swinging translation is completed, the penetrating rod is fixed after the first swinging translation is completed, a hanging point close to the head of the pipeline is replaced at a middle hanging point of the reinforcement cage to carry out the second swinging translation, and the penetrating rod is fixed until the hanging point swings in place.
Generally, compared with the prior art, the technical scheme of the invention can achieve the following beneficial effects:
1. according to the underground diaphragm wall segmental construction method for the continuous large-diameter pipeline, the gas lift reverse circulation method is adopted to clean the trenching machine, so that part of soil cannot be cleaned, most of resources are saved, the groove cleaning effect is good, the operation is strong, the problem of cleaning the soil below the pipeline is solved, the construction progress is saved, and the construction cost is further saved;
2. according to the invention, a one-groove double-cage method is adopted, and through the procedures of amplitude modulation, pipeline protection, locking pipes at the rear lower part, steel reinforcement cage translation and the like, the construction problem of the underground diaphragm wall below the pipeline is solved in the most convenient mode, the construction problems that the underground diaphragm wall construction is difficult and the pipeline cannot be changed without being damaged are ensured, the potential safety hazard is avoided, the construction progress is accelerated and the construction quality is ensured;
3. the process for placing the fore shaft pipe after the steel reinforcement cage is translated for the second time is adopted, the operation is simple and convenient, the implementation is easy, the safety risk is small, the additional equipment investment is not needed, the perpendicularity of the steel reinforcement cage is ensured to meet the requirement through the secondary extrusion of the fore shaft pipe after the steel reinforcement cage is translated, and the construction quality is ensured.
Drawings
The following detailed description of embodiments of the invention is provided in conjunction with the appended drawings, in which:
FIG. 1 is a schematic view of the construction of a trench on the left side of a diaphragm wall according to the present invention;
FIG. 2 is a schematic view of the construction of the right side of the diaphragm wall in the present invention;
FIG. 3 is a schematic diagram of the invention showing the removal of soil by gas lift reverse circulation;
FIG. 4 is the working principle of the gas lift reverse circulation method mud equipment of the present invention;
FIG. 5 is a schematic view of the first locking tube and the first reinforcement cage being lowered in accordance with the present invention;
FIG. 6 is a schematic illustration of the present invention in which a second reinforcement cage is lowered;
FIG. 7 is a schematic view of a second reinforcement cage of the present invention in a single translation;
FIG. 8 is a schematic view of a second reinforcement cage translation stage according to the present invention;
FIG. 9 is a schematic illustration of the construction of the present invention with the second reinforcement cage translated in place;
FIG. 10 is a schematic view of the construction of the present invention with the second fore shaft lowered into place;
in the figure: the method comprises the following steps of 1-large-diameter pipeline, 2-grooving machine, 3-grab bucket, 4-large-diameter pipeline groove section, 5-air compressor, 6-airtight transmission rod, 7-slurry-air mixer, 8-guide pipe, 9-submersible electric pump, 10-slurry purification device, 11-first locking pipe, 12-first reinforcement cage, 13-second reinforcement cage and 14-second locking pipe.
Detailed Description
A continuous large-diameter pipeline underground diaphragm wall segmental construction method is characterized by comprising the following construction steps:
the method comprises the following steps: according to the type and state of the continuous large-diameter pipeline 1, the width of the large-diameter pipeline 1 is 800mm-1200mm, 3mm thick steel plates are arranged around the large-diameter pipeline 1, the ends of the steel plates are welded with wall guide reinforcing steel bars, the whole body is used as a protective body and marked by red and yellow paint, the width of the underground diaphragm wall at the pipeline position is reasonably adjusted according to the width, the position and the site construction environment of the large-diameter pipeline 1, and the width of a grab bucket 3 of a trenching machine 2 can be met on both sides of the pipeline, as shown in fig. 1-3, the method is a flow chart of one-step underground diaphragm wall trenching construction;
step two: after enclosing a large-diameter pipeline 1, a grooving machine 2 is used for removing soil from a groove section 4 of the large-diameter pipeline, the rest soil is removed by a gas lift reverse circulation method, compressed air generated by an air compressor 5 is conveyed to a slurry-air mixer 7 through an annular gap between an inner pipe and an outer pipe of an airtight type transmission rod 6 by gas lift reverse circulation drilling, then the compressed air enters a guide pipe 8, so that three-phase flow of gas, liquid and solid is taken out of a hole at high speed, finally discharged into a sedimentation tank through a slurry purification device 10, and enters precipitated slurry to be returned into the hole, a continuous soil and sediment cleaning process is formed through repeated circulation, and the working principle of the slurry cleaning equipment by the gas lift reverse circulation method is shown in figure 4;
step three: after the groove forming of the large-diameter pipeline 1 is finished, the single-side locking pipe is lowered, the first reinforcement cage 12 is hoisted and lowered, the second reinforcement cage 13 is lowered after the lowering is in place and fixed, the first translation amount is 600mm-800mm because the distance between a lifting lug of a reinforcement cage head and a cage edge is 600mm-800mm, the first translation amount is changed to the middle lifting point of the reinforcement cage according to reasonable calculation after the first translation is in place, the second swinging translation is carried out, the locking pipe is lowered after the translation is finished, and the perpendicularity of the reinforcement cage is ensured, as shown in fig. 5-fig. 10, the process diagram of the lowering and the translation of the reinforcement cage is shown;
step four: detecting whether the bottom of the steel reinforcement cage is translated in place or not, adopting a post-lowering locking pipe construction process, lowering the first locking pipe 11 strictly according to a framing line, adopting a total station for detecting the verticality of the locking pipe in the whole process of lowering, smoothly finishing the lowering of the first locking pipe 11 according to the framing line, indicating that the second steel reinforcement cage 13 is translated in place, and if necessary, lowering the second locking pipe 14 at the end of the translating steel reinforcement cage, and extruding the lower part of the steel reinforcement cage again;
step five: and before concrete pouring, secondary hole cleaning treatment is carried out, the concrete pouring is carried out by adopting a conduit method, the fore shaft pipe starts to be pulled out 4-5 hours after the concrete pouring is started, the fore shaft pipe is lifted once every 30 minutes, the amplitude of the fore shaft pipe is not more than 50-100 mm, and the fore shaft pipe is pulled out 7-9 hours after the concrete pouring is finished.
After the framing line and the grooving width are determined in the first step, according to the size of the grab bucket 3, a safe distance of 100mm is reserved from the pipeline side at the grab of the grooving machine 2, and in order to ensure that the reinforcement cage normally swings and translates up and down, the up-down swinging amplitude of the reinforcement cage is not less than 2.5 m.
First steel reinforcement cage 12 and second steel reinforcement cage 13 in the third step fall into two "one" style of calligraphy steel reinforcement cage and set up the primary and secondary and connect the form, two whole elongated that belong to of steel reinforcement cage, after the grooving construction was accomplished, transfer first fore shaft pipe 11, and hoist and transfer the first steel reinforcement cage 12 of fore shaft pipe side, it is fixed to adopt the cross bar after putting in place, then transfer second steel reinforcement cage 14, it carries out the first swing translation to put in place, the first swing translation is accomplished the back and is fixed the cross bar, and will be close to pipeline department's cage head hoisting point and change and carry out the secondary swing translation in steel reinforcement cage middle hoisting point department, it is fixed to wear the cross bar after the swing puts in place.
The gas lift reverse circulation method is adopted to clean the groove section grooving machine, so that part of soil cannot be cleaned, most resources are saved, the groove cleaning effect is good, the operation is strong, the problem of cleaning the soil below the pipeline is solved, the construction progress is saved, and the construction cost is further saved; by adopting a one-groove double-cage method, through the procedures of amplitude modulation, pipeline protection, rear lower locking pipe, reinforcement cage translation and the like, the construction problem of the underground diaphragm wall below the pipeline is solved in the most convenient mode, the construction problems that the underground diaphragm wall construction is difficult and the pipeline cannot be changed without being damaged are solved, the potential safety hazard is avoided, the construction progress is accelerated, and the construction quality is ensured; the process for placing the locking notch pipe after the steel reinforcement cage is translated for the second time is simple and convenient to operate, easy to implement, small in safety risk, free of additional equipment investment, capable of guaranteeing the verticality of the steel reinforcement cage to meet requirements through secondary extrusion of the locking notch pipe after the steel reinforcement cage is translated, and capable of guaranteeing construction quality.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (5)
1. A continuous large-diameter pipeline underground diaphragm wall segmental construction method is characterized by comprising the following construction steps:
a: according to the type and the state of the continuous large-diameter pipeline (1), 3mm thick steel plates are arranged on the periphery of the large-diameter pipeline (1), the ends of the steel plates are welded with guide wall steel bars, the whole body is used as a protective body and marked by red and yellow paint, and according to the width, the position and the site construction environment of the large-diameter pipeline (1), the wall width of the pipeline is reasonably adjusted, so that the two sides of the pipeline can meet the width of a grab bucket (3) of a trenching machine (2);
b: after enclosing a large-diameter pipeline (1), a grooving machine (2) is used for removing soil from a groove section (4) of the large-diameter pipeline, the rest soil is removed by adopting a gas-lift reverse circulation method, compressed air generated by an air compressor (5) is conveyed to a slurry-air mixer (7) through an annular gap between an inner pipe and an outer pipe of an airtight transmission rod (6) by gas-lift reverse circulation drilling and then enters a guide pipe (8), so that three-phase flow of gas, liquid and solid is taken out of a hole at high speed and finally discharged into a sedimentation tank through a slurry purification device (10), the sedimentated slurry is left in the hole again, and a process of continuously cleaning the soil and sediments is formed through repeated circulation;
c: after the grooving of the groove section of the large-diameter pipeline (1) is finished, a one-side locking pipe is placed, a first reinforcement cage (12) is hoisted and placed, a second reinforcement cage (13) is placed in place and fixed, the first translation amount is 600mm-800mm because the distance between a lifting lug of a reinforcement cage head and a cage edge is 600mm-800mm, the first translation is in place, the lifting lug of the reinforcement cage head is replaced to a middle lifting point of the reinforcement cage according to reasonable calculation, secondary swinging translation is carried out, the locking pipe is placed after the translation is finished, and the verticality of the reinforcement cage is ensured;
d: detecting whether the bottom of the steel reinforcement cage is translated in place or not, adopting a post-lowering locking pipe construction process, lowering the first locking pipe (11) strictly according to a framing line, adopting a total station for whole-course verticality detection of the locking pipe in the lowering process, successfully completing the lowering of the first locking pipe (11) according to the framing line, indicating that the second steel reinforcement cage (13) is translated in place, and if necessary, lowering the second locking pipe (14) at the end of the translating steel reinforcement cage, and extruding the lower part of the steel reinforcement cage again;
e: and before concrete pouring, secondary hole cleaning treatment is carried out, the concrete pouring is carried out by adopting a conduit method, the fore shaft pipe starts to be pulled out 4-5 hours after the concrete pouring is started, the fore shaft pipe is lifted once every 30 minutes, the amplitude of the fore shaft pipe is not more than 50-100 mm, and the fore shaft pipe is pulled out 7-9 hours after the concrete pouring is finished.
2. The continuous large-diameter pipeline underground diaphragm wall section construction method according to claim 1, characterized in that the width of the large-diameter pipeline (1) is 800mm-1200 mm.
3. The underground diaphragm wall segmental construction method for the continuous large-diameter pipeline according to claim 1, wherein after the framing line and the grooving width are determined in the step a, a safe distance of 100mm is reserved from the pipeline side at one grabbing distance of the grooving machine (2) according to the size of the grab bucket (3), and the up-and-down swinging amplitude of the reinforcement cage is not less than 2.5m to ensure normal up-and-down swinging and translation of the reinforcement cage.
4. The underground diaphragm wall segmental construction method for the continuous large-diameter pipeline according to claim 1, wherein the first reinforcement cage (12) and the second reinforcement cage (13) in the step c are divided into two I-shaped reinforcement cages and are provided with a primary-secondary joint form, and the two reinforcement cages are integrally slender.
5. The continuous large-diameter pipeline underground diaphragm wall section construction method is characterized in that after the grooving construction in the step c is completed, a first locking pipe (11) is lowered, a first reinforcement cage (12) on the side of the lowered locking pipe is hoisted, the first reinforcement cage is fixed by a penetrating rod after being lowered in place, a second reinforcement cage (14) is lowered, the first swinging translation is carried out after the first swinging translation is completed, the penetrating rod is fixed after the first swinging translation is completed, a hanging point of a cage head close to a pipeline is replaced at a middle hanging point of the reinforcement cage, the second swinging translation is carried out until the penetrating rod is fixed after being swung in place.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111072430.0A CN113863282A (en) | 2021-09-14 | 2021-09-14 | Continuous large-diameter pipeline underground diaphragm wall section construction method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111072430.0A CN113863282A (en) | 2021-09-14 | 2021-09-14 | Continuous large-diameter pipeline underground diaphragm wall section construction method |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03212508A (en) * | 1990-01-17 | 1991-09-18 | Nippon Steel Corp | Continuous underground wall construction method and reinforcement cage for continuous underground wall |
| CN105926584A (en) * | 2016-04-28 | 2016-09-07 | 中国水电基础局有限公司 | Construction method for underground continuous wall below ultra-wide pipeline |
| CN110725301A (en) * | 2019-10-19 | 2020-01-24 | 湖北广元岩土工程有限公司 | Underground continuous wall construction method |
| CN111058458A (en) * | 2019-12-23 | 2020-04-24 | 中铁第一勘察设计院集团有限公司 | Construction method and structure based on cutter suction type ground connecting wall local replacement row pile support |
-
2021
- 2021-09-14 CN CN202111072430.0A patent/CN113863282A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03212508A (en) * | 1990-01-17 | 1991-09-18 | Nippon Steel Corp | Continuous underground wall construction method and reinforcement cage for continuous underground wall |
| CN105926584A (en) * | 2016-04-28 | 2016-09-07 | 中国水电基础局有限公司 | Construction method for underground continuous wall below ultra-wide pipeline |
| CN110725301A (en) * | 2019-10-19 | 2020-01-24 | 湖北广元岩土工程有限公司 | Underground continuous wall construction method |
| CN111058458A (en) * | 2019-12-23 | 2020-04-24 | 中铁第一勘察设计院集团有限公司 | Construction method and structure based on cutter suction type ground connecting wall local replacement row pile support |
Non-Patent Citations (1)
| Title |
|---|
| 王剑等: "穿越地下管线的地连墙处理技术", 《港工技术》 * |
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