CN113846624A - Construction method for implementing underground water-soil continuous steel wall by double-wheel slot milling machine - Google Patents
Construction method for implementing underground water-soil continuous steel wall by double-wheel slot milling machine Download PDFInfo
- Publication number
- CN113846624A CN113846624A CN202110906741.6A CN202110906741A CN113846624A CN 113846624 A CN113846624 A CN 113846624A CN 202110906741 A CN202110906741 A CN 202110906741A CN 113846624 A CN113846624 A CN 113846624A
- Authority
- CN
- China
- Prior art keywords
- section steel
- steel
- guide
- section
- wall
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 165
- 239000010959 steel Substances 0.000 title claims abstract description 165
- 238000010276 construction Methods 0.000 title claims abstract description 32
- 238000003801 milling Methods 0.000 title claims abstract description 29
- 239000002689 soil Substances 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 claims abstract description 24
- 239000002002 slurry Substances 0.000 claims abstract description 20
- 239000000440 bentonite Substances 0.000 claims abstract description 12
- 229910000278 bentonite Inorganic materials 0.000 claims abstract description 12
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000002156 mixing Methods 0.000 claims abstract description 10
- 239000004568 cement Substances 0.000 claims abstract description 7
- 239000004576 sand Substances 0.000 claims abstract description 7
- 230000002787 reinforcement Effects 0.000 claims abstract description 5
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 6
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 3
- 239000000654 additive Substances 0.000 claims description 3
- 238000005553 drilling Methods 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 3
- 239000003973 paint Substances 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 239000011150 reinforced concrete Substances 0.000 claims description 3
- 229910052708 sodium Inorganic materials 0.000 claims description 3
- 239000011734 sodium Substances 0.000 claims description 3
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 3
- 235000017550 sodium carbonate Nutrition 0.000 claims description 3
- 230000000996 additive effect Effects 0.000 claims description 2
- 238000012937 correction Methods 0.000 claims description 2
- 239000003673 groundwater Substances 0.000 claims 2
- 239000000463 material Substances 0.000 abstract description 5
- 238000012545 processing Methods 0.000 abstract description 4
- 239000004575 stone Substances 0.000 abstract description 4
- 238000007493 shaping process Methods 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 2
- 238000009412 basement excavation Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000003756 stirring 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
- E02D5/20—Bulkheads or similar walls made of prefabricated parts and concrete, including reinforced concrete, in situ
-
- 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
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
- E02D19/12—Restraining of underground water by damming or interrupting the passage of underground water
- E02D19/18—Restraining of underground water by damming or interrupting the passage of underground water by making use of sealing aprons, e.g. diaphragms made from bituminous or clay material
-
- 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
- E02F5/08—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with digging wheels turning round an axis
-
- 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
- E02F5/14—Component parts for trench excavators, e.g. indicating devices travelling gear chassis, supports, skids
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Mechanical Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Bulkheads Adapted To Foundation Construction (AREA)
Abstract
The invention relates to a method for implementing an underground water-soil continuous steel wall by a double-wheel slot milling machine, which comprises the following steps: the first step is as follows: and (3) conducting wall construction, and the second step is as follows: and (3) mixing bentonite slurry, and the third step: grooving by a grooving machine, and step four: installing a guide frame, and fifthly: and (5) downward inserting the section steel. Compared with the traditional underground continuous wall, the construction method of the underground soil continuous steel wall by adopting the double-wheel slot milling machine does not need to arrange a reinforcement cage processing platform on site, and the occupied space is small; the double-crane lifting is not needed, and the input quantity of cranes is small; only bentonite and cement are needed for grooving, and the grooving is not influenced by sand and stone materials; the section steel is processed by factory shaping, the processing precision and quality are high, and the field labor input is less; the water stopping and foundation pit enclosing are integrated, the construction process links are few, and the construction period is short.
Description
Technical Field
The invention relates to a construction method of an underground water-soil continuous steel wall, in particular to a construction method of an underground water-soil continuous steel wall by adopting a double-wheel slot milling machine.
Background
Along with the continuous development of cities, the development and utilization of underground spaces are more and more emphasized by people. In the field of underground engineering construction, the excavation area of a foundation pit is larger and larger, the excavation depth is deeper and deeper, and the shape of the foundation pit is more and more complex. The surrounding environment of the area where the engineering construction is located is more and more complex, and particularly, the site conditions are limited in the downtown position. Secondly, in recent years, the supervision on environmental protection is increasingly strengthened, and the sand and stone materials required by the traditional concrete are increasingly deficient. The underground cement soil continuous steel wall only needs to be added with cement and steel materials, is not influenced by sand and stone materials, is controllable in construction progress, occupies a small area, and can replace the conventional underground continuous wall in a part of area limited by the area or the area limited by the raw materials to be used as foundation pit enclosure. Therefore, a construction method for implementing the underground water-soil continuous steel wall by adopting a double-wheel slot milling machine is needed.
Disclosure of Invention
The invention provides a construction method for implementing an underground water-soil continuous steel wall by using a double-wheel slot milling machine, which can greatly improve the construction efficiency and save the occupied area of a field, thereby realizing the saving of the construction period and the engineering cost and having higher economic and social meanings.
In order to achieve the purpose, the technical scheme of the invention is as follows: a method for implementing an underground water-soil continuous steel wall by a double-wheel slot milling machine comprises the following steps:
the first step is as follows: construction of guide wall
The guide wall adopts an L-L type integral reinforced concrete cast-in-place structure, the reinforcement and the depth are determined according to the field situation, and a fixed guide beam is embedded and fixed on the guide wall and used for mounting a guide frame at the later stage;
the second step is that: bentonite slurry mixing
The bentonite slurry is mixed by high-quality sodium-based soil, the mixing amount is 5 percent, and the additive can be properly mixed according to different soil layer conditions of a construction site: CMC and soda ash are used for adjusting the parameters of the new slurry, and the new slurry is fermented for at least 24 hours after being stirred, so that the wall protection and sand carrying performance of the slurry are ensured;
the third step: grooving machine
1) Groove segment division
Marking the constructed guide wall according to a section of 2.8m by using red paint according to the width of a milling bucket of a slot milling machine, and dividing slot sections to be constructed one by one;
2) milling to form grooves
Directly taking soil from the upper part to 6m below the ground by using a grab bucket of a hydraulic trenching machine, milling to the elevation position of the bottom of the wall by using a double-wheel trenching machine after the soil enters the depth of less than 6m, injecting bentonite slurry in the milling process, and performing verticality correction through an operation panel in a driving cabin to ensure that the verticality is not less than 1/800;
the fourth step: guide frame mounting
Fixing a guide beam through an embedded part on the guide wall, mounting a guide wheel on the guide beam, arranging a section steel guide frame, fixing the plane position of the inserted section steel, wherein the guide frame needs to be firm and horizontal, then aligning the center of the bottom of the section steel to the center of a pile position and slowly and vertically inserting the section steel into the cement soil mixing wall along the guide frame, and controlling the section steel inserting verticality by using a theodolite during the period, wherein the section steel verticality is controlled at 1/300;
the fifth step: section steel lower insert
1) Laying a track of the mobile operation platform vehicle, positioning the track, and fixing the track by using a track clamping device;
2) according to the position of the first lock catch type steel guide wheel inserted after the mobile operation platform car is positioned, the position of the operation frame is determined;
3) assembling the operation frame on site, positioning the expansion bolt plate, drilling a hole in the guide wall, and fixing the plate by using the expansion bolt;
4) the preparation work is ready, and a first section steel is to be inserted;
5) inserting a first GH-R section steel with a conical bottom section;
firstly, the rollers of the upper and lower layers of guide wheels on the left side are close to the section steel, the rollers are adjusted to the same vertical plane through a gathering station instrument, then the guide wheels on the right side are close, the verticality of the section steel is retested through the gathering station instrument, and the guide wheels are adjusted in place; the core tube assembly can be moved down together with GH-R section steel;
6) inserting a first GH-R bottom section steel to a section steel connecting position, inserting a laying rod into a section steel preformed hole, hanging the section steel on a movable operation platform vehicle, splicing GH-R standard section steel and a core tube assembly, and connecting the section steel by adopting an M30 high-strength torsional shear type bolt;
7) the first GH-R section steel is connected to the top section steel by the same method, and the whole section of the top section steel is basically higher than the ground surface of the guide wall;
8) the top of the first GH-R section steel is provided with an inclined strut for adjusting the verticality of the section steel;
9) after the first GH-R section steel is installed, straightening the section steel by using a total station and an inclined strut, fixing the whole section steel on a guide wall, and disassembling an operation platform;
10) before inserting a second GH-R-I type steel, moving the guide wheel and the mounting beam to the preset position of the moving platform car and adjusting the guide wheel and the mounting beam to be right;
11) inserting a second GH-R-I section steel bottom joint, arranging a core pipe, descending to a section steel connecting position, inserting a laying rod into a section steel preformed hole to hang the section steel on a movable trolley, and splicing the upper section steel;
12) inserting a second GH-R-I section steel to the top section, inserting a laying rod into a preformed hole in the top of the top section, hanging the whole section steel on a mobile operation platform vehicle, installing and fixing a set of hanging beam assembly for the section steel, then integrally hanging the section steel, pulling out the laying beam, placing the section steel down again, and stopping when the hanging beam assembly is laid on the guide wall;
13) inserting a second GH-R-I section steel from a bottom section to a top section, monitoring the verticality of each section steel by using a vertical inclinometer attached to each section steel in the whole process, and rechecking the verticality by using a gathering station instrument, wherein the process is the same as that of the first inserting;
14) and inserting a third GH-R-I section steel, wherein the process flow is the same as that of inserting a second GH-R-I section steel.
Furthermore, the height deviation of the surface mark of the formed guide wall is controlled within +/-30 mm, and the height deviation can be controlled by a measurer in the pouring process.
Furthermore, after the hanging beam assembly is placed on the guide wall, the profile steel is hoisted, four groups of lifting hook nuts in the hanging beam assembly are rotated to finely adjust the final verticality condition after the profile steel is placed until the set requirement is met, and the verticality of the profile steel can be monitored through a vertical inclinometer attached to each section of profile steel.
Compared with the traditional underground continuous wall, the construction method of the underground soil continuous steel wall by adopting the double-wheel slot milling machine has the following beneficial effects that:
1. a reinforcement cage processing platform does not need to be arranged on site, and the occupied area is small;
2. the double-crane lifting is not needed, and the input quantity of cranes is small;
3. only bentonite and cement are needed for grooving, and the grooving is not influenced by sand and stone materials;
4. the section steel is processed by factory shaping, the processing precision and quality are high, and the field labor input is less;
5. the water stopping and foundation pit enclosing are integrated, the construction process links are few, and the construction period is short.
Drawings
FIG. 1 is a front view of a guide frame installation construction;
FIG. 2 is a top view of the guide frame during installation and construction;
FIG. 3 is a front view of the first section steel lowering construction;
FIG. 4 is a top view of the first section steel lowering construction;
FIG. 5 is a front view of the butt joint construction of the first section of section steel;
FIG. 6 is a top view of the butt joint construction of the first section steel;
FIG. 7 is a front view of the second section steel lowering construction;
FIG. 8 is a plan view of the second section steel lowering construction.
Detailed Description
The invention is further described with reference to the following figures and examples.
As shown in fig. 1 to 8, a method for implementing a groundwater-soil continuous steel wall by using a double-wheel slot milling machine comprises the following implementation steps:
the first step is as follows: construction of guide wall
The guide wall 10 adopts an L-L type integral reinforced concrete cast-in-place structure, the arrangement of reinforcements and the depth are determined according to the field condition, and the standard height deviation of the formed surface of the guide wall 10 is controlled within +/-30 mm and can be controlled by a measurer in the pouring process. Fixed guide beams are pre-buried on the guide wall 10 and used for installing a guide frame in the later period.
The second step is that: bentonite slurry mixing
The bentonite slurry is mixed by high-quality sodium-based soil, the mixing amount is 5 percent, and additives (CMC, soda ash) can be properly mixed according to different soil layer conditions of a construction site to adjust the parameters of new slurry. And fermenting for at least 24 hours after the new slurry is stirred (continuous stirring of the slurry is required in the fermentation process, so that precipitation is avoided), and the wall protection and sand carrying performance of the slurry are ensured.
The third step: grooving machine
1) Groove segment division
According to the width of a milling bucket of a slot milling machine, marking is done on a constructed guide wall according to a section of 2.8m by using red paint, and the slot sections 11 to be constructed are divided one by one.
2) Milling to form grooves
Directly taking soil from the upper part to 6m below the ground by using a grab bucket of a hydraulic trenching machine. And after the depth is less than 6m, milling to the height position of the wall bottom by using a double-wheel slot milling machine. And bentonite slurry is injected in the milling process, and the verticality is corrected through an operation panel in the cab, so that the verticality is not less than 1/800.
The fourth step: guide frame mounting
The guide beam is fixed through the embedded part on the guide wall, the guide wheel 6 is installed on the guide beam, the profile steel guide frame is arranged, and the plane position of the inserted profile steel is fixed. The guide frame must be firm and horizontal, then the center of the bottom of the section steel is aligned with the center of the pile position and is slowly and vertically inserted into the cement mixing wall along the guide frame, during the process, the section steel is controlled to be inserted into the verticality by using a theodolite, and the verticality of the section steel is controlled to be 1/300.
The fifth step: section steel lower insert
1) Laying a track of the mobile operation platform vehicle, positioning the track, and fixing the track by using a track clamping device;
2) according to the position of the first lock catch type steel guide wheel inserted after the mobile operation platform vehicle 7 is positioned, the position of the operation frame is determined;
3) assembling the operation frame on site, positioning the expansion bolt plate, drilling a hole in the guide wall, and fixing the plate by using the expansion bolt;
4) so far, the preparation work is ready, and the first section steel is to be inserted.
5) Inserting a first GH-R section steel with a conical bottom section;
firstly, the rollers of the upper and lower layers of guide wheels on the left side are close to the section steel, the rollers are adjusted to the same vertical plane through a gathering station instrument, then the guide wheels on the right side are close, the verticality of the section steel is retested through the gathering station instrument, and the guide wheels are adjusted in place; the core tube assembly (without a protective plate) can be arranged with GH-R section steel;
6) inserting a first GH-R bottom section steel to a section steel connecting position, inserting a laying rod into a section steel preformed hole, hanging the section steel on a movable operation platform vehicle, splicing GH-R standard section steel and a core tube assembly, and connecting the section steel by adopting an M30 high-strength torsional shear type bolt;
7) the first GH-R section steel is connected to the top section steel by the same method, and the whole section of the top section steel is basically higher than the ground surface of the guide wall;
8) the top of the first GH-R section steel is provided with an inclined strut for adjusting the verticality of the section steel;
9) and after the first GH-R section steel is installed, straightening the section steel by using a total station and an inclined strut, fixing the whole section steel on the guide wall, and disassembling the operating platform.
10) Before inserting a second GH-R-I type steel, moving the guide wheel and the mounting beam to the preset position of the moving platform car and adjusting the guide wheel and the mounting beam to be right;
11) and inserting a second GH-R-I section steel bottom section, arranging a core pipe, descending to a section steel connecting position, inserting a laying rod into a section steel preformed hole to hang the section steel on the movable trolley, and splicing the upper section steel.
12) Inserting a second GH-R-I section steel to the top section, inserting a laying rod into a preformed hole in the top of the top section, hanging the whole section steel on a mobile operation platform vehicle, installing and fixing a set of hanging beam assembly for the section steel, then integrally hanging the section steel, pulling out the laying beam, placing the section steel down again, and stopping when the hanging beam assembly is laid on the guide wall;
13) inserting a second GH-R-I section steel from a bottom section to a top section, monitoring the verticality of each section steel by using a vertical inclinometer attached to each section steel in the whole process, and rechecking the verticality by using a gathering station instrument, wherein the verticality is the same as that of the first section steel;
14) after the hanging beam assembly is placed on the guide wall, the profile steel is lightly hung, four groups of hanging hook nuts in the hanging beam assembly are rotated to finely adjust the final verticality condition after the profile steel is placed until the set requirement is met, and the verticality can be monitored by methods such as a vertical clinometer attached to each section of profile steel;
15) and inserting a third GH-R-I section steel, wherein the process flow is the same as that of inserting a second GH-R-I section steel.
Claims (3)
1. A method for implementing an underground water-soil continuous steel wall by a double-wheel slot milling machine is characterized by comprising the following steps:
the first step is as follows: construction of guide wall
The guide wall adopts an L-L type integral reinforced concrete cast-in-place structure, the reinforcement and the depth are determined according to the field situation, and a fixed guide beam is embedded and fixed on the guide wall and used for mounting a guide frame at the later stage;
the second step is that: bentonite slurry mixing
The bentonite slurry is mixed by high-quality sodium-based soil, the mixing amount is 5 percent, and the additive can be properly mixed according to different soil layer conditions of a construction site: CMC and soda ash are used for adjusting the parameters of the new slurry, and the new slurry is fermented for at least 24 hours after being stirred, so that the wall protection and sand carrying performance of the slurry are ensured;
the third step: grooving machine
1) Groove segment division
Marking the constructed guide wall according to a section of 2.8m by using red paint according to the width of a milling bucket of a slot milling machine, and dividing slot sections to be constructed one by one;
2) milling to form grooves
Directly taking soil from the upper part to 6m below the ground by using a grab bucket of a hydraulic trenching machine, milling to the elevation position of the bottom of the wall by using a double-wheel trenching machine after the soil enters the depth of less than 6m, injecting bentonite slurry in the milling process, and performing verticality correction through an operation panel in a driving cabin to ensure that the verticality is not less than 1/800;
the fourth step: guide frame mounting
Fixing a guide beam through an embedded part on the guide wall, mounting a guide wheel on the guide beam, arranging a section steel guide frame, fixing the plane position of the inserted section steel, wherein the guide frame needs to be firm and horizontal, then aligning the center of the bottom of the section steel to the center of a pile position and slowly and vertically inserting the section steel into the cement soil mixing wall along the guide frame, and controlling the section steel inserting verticality by using a theodolite during the period, wherein the section steel verticality is controlled at 1/300;
the fifth step: section steel lower insert
1) Laying a track of the mobile operation platform vehicle, positioning the track, and fixing the track by using a track clamping device;
2) according to the position of the first lock catch type steel guide wheel inserted after the mobile operation platform car is positioned, the position of the operation frame is determined;
3) assembling the operation frame on site, positioning the expansion bolt plate, drilling a hole in the guide wall, and fixing the plate by using the expansion bolt;
4) the preparation work is ready, and a first section steel is to be inserted;
5) inserting a first GH-R section steel with a conical bottom section;
firstly, the rollers of the upper and lower layers of guide wheels on the left side are close to the section steel, the rollers are adjusted to the same vertical plane through a gathering station instrument, then the guide wheels on the right side are close, the verticality of the section steel is retested through the gathering station instrument, and the guide wheels are adjusted in place; the core tube assembly can be moved down together with GH-R section steel;
6) inserting a first GH-R bottom section steel to a section steel connecting position, inserting a laying rod into a section steel preformed hole, hanging the section steel on a movable operation platform vehicle, splicing GH-R standard section steel and a core tube assembly, and connecting the section steel by adopting an M30 high-strength torsional shear type bolt;
7) the first GH-R section steel is connected to the top section steel by the same method, and the whole section of the top section steel is basically higher than the ground surface of the guide wall;
8) the top of the first GH-R section steel is provided with an inclined strut for adjusting the verticality of the section steel;
9) after the first GH-R section steel is installed, straightening the section steel by using a total station and an inclined strut, fixing the whole section steel on a guide wall, and disassembling an operation platform;
10) before inserting a second GH-R-I type steel, moving the guide wheel and the mounting beam to the preset position of the moving platform car and adjusting the guide wheel and the mounting beam to be right;
11) inserting a second GH-R-I section steel bottom joint, arranging a core pipe, descending to a section steel connecting position, inserting a laying rod into a section steel preformed hole to hang the section steel on a movable trolley, and splicing the upper section steel;
12) inserting a second GH-R-I section steel to the top section, inserting a laying rod into a preformed hole in the top of the top section, hanging the whole section steel on a mobile operation platform vehicle, installing and fixing a set of hanging beam assembly for the section steel, then integrally hanging the section steel, pulling out the laying beam, placing the section steel down again, and stopping when the hanging beam assembly is laid on the guide wall;
13) inserting a second GH-R-I section steel from a bottom section to a top section, monitoring the verticality of each section steel by using a vertical inclinometer attached to each section steel in the whole process, and rechecking the verticality by using a gathering station instrument, wherein the process is the same as that of the first inserting;
14) and inserting a third GH-R-I section steel, wherein the process flow is the same as that of inserting a second GH-R-I section steel.
2. A method of implementing a groundwater soil continuous steel wall with a double-wheel slot milling machine as claimed in claim 1, wherein: the height deviation of the surface mark of the formed guide wall is controlled within +/-30 mm and can be controlled by a measurer in the pouring process.
3. A method of implementing a groundwater soil continuous steel wall with a double-wheel slot milling machine as claimed in claim 1, wherein: after the hanging beam assembly is placed on the guide wall, the profile steel is hoisted, four groups of lifting hook nuts in the hanging beam assembly are rotated to finely adjust the final verticality condition after the profile steel is placed until the set requirement is met, and the verticality of the profile steel can be monitored through a vertical inclinometer attached to each section of profile steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110906741.6A CN113846624A (en) | 2021-08-09 | 2021-08-09 | Construction method for implementing underground water-soil continuous steel wall by double-wheel slot milling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110906741.6A CN113846624A (en) | 2021-08-09 | 2021-08-09 | Construction method for implementing underground water-soil continuous steel wall by double-wheel slot milling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113846624A true CN113846624A (en) | 2021-12-28 |
Family
ID=78975561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110906741.6A Pending CN113846624A (en) | 2021-08-09 | 2021-08-09 | Construction method for implementing underground water-soil continuous steel wall by double-wheel slot milling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113846624A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114809005A (en) * | 2022-04-21 | 2022-07-29 | 中交天津港湾工程研究院有限公司 | Construction method for double-wheel milling cement-soil wall composite anchor cable supporting structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102312445A (en) * | 2010-06-29 | 2012-01-11 | 中交第三航务工程勘察设计院有限公司 | Diaphragm wall and construction method thereof |
| US20180044907A1 (en) * | 2016-08-12 | 2018-02-15 | Wuhan Zhihe Geotechnical Engineering Co., Ltd | Inverse construction method for deep, large and long pit assembling structure of suspension-type envelope enclosure |
| CN111851468A (en) * | 2020-07-28 | 2020-10-30 | 上海市基础工程集团有限公司 | Underground water soil steel wall continuous inserting verticality control construction method |
| CN112252332A (en) * | 2020-10-11 | 2021-01-22 | 中铁隧道局集团有限公司 | Grooving construction method for underground diaphragm wall of ultra-deep shaft |
| CN112663595A (en) * | 2020-12-03 | 2021-04-16 | 上海市基础工程集团有限公司 | Adjusting and fixing device for first root locking section steel of underground continuous steel wall |
-
2021
- 2021-08-09 CN CN202110906741.6A patent/CN113846624A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102312445A (en) * | 2010-06-29 | 2012-01-11 | 中交第三航务工程勘察设计院有限公司 | Diaphragm wall and construction method thereof |
| US20180044907A1 (en) * | 2016-08-12 | 2018-02-15 | Wuhan Zhihe Geotechnical Engineering Co., Ltd | Inverse construction method for deep, large and long pit assembling structure of suspension-type envelope enclosure |
| CN111851468A (en) * | 2020-07-28 | 2020-10-30 | 上海市基础工程集团有限公司 | Underground water soil steel wall continuous inserting verticality control construction method |
| CN112252332A (en) * | 2020-10-11 | 2021-01-22 | 中铁隧道局集团有限公司 | Grooving construction method for underground diaphragm wall of ultra-deep shaft |
| CN112663595A (en) * | 2020-12-03 | 2021-04-16 | 上海市基础工程集团有限公司 | Adjusting and fixing device for first root locking section steel of underground continuous steel wall |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114809005A (en) * | 2022-04-21 | 2022-07-29 | 中交天津港湾工程研究院有限公司 | Construction method for double-wheel milling cement-soil wall composite anchor cable supporting structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107059667A (en) | Door shape assembled armored concrete box culvert and its construction method | |
| CN106437737B (en) | Pipe jacking type coal mine small-section roadway tunneling method | |
| CN113638417B (en) | Pile connection accurate positioning pouring system and construction method | |
| CN111364444A (en) | Shallow-buried rock stratum section diaphragm wall grooving construction method | |
| CN106013053A (en) | Steel sheet pile support construction method for building underground garage open caisson | |
| CN208965714U (en) | A kind of prefabricated piping lane main frame structure of assembly concrete | |
| CN113756286A (en) | Construction method for implementing underground water soil continuous steel wall by TRD method | |
| CN113638445A (en) | Semi-inverse construction method for ultra-deep circular foundation pit | |
| CN108035379B (en) | Comprehensive pipe gallery and construction method thereof | |
| CN111734309A (en) | Guiding device for construction of SMW method pile, and SMW method pile construction equipment and method | |
| CN114411756A (en) | Construction method and construction device for water-rich sand layer subway station open excavation foundation pit without precipitation | |
| CN206495233U (en) | Door shape assembled armored concrete box culvert | |
| CN113846624A (en) | Construction method for implementing underground water-soil continuous steel wall by double-wheel slot milling machine | |
| CN110778322A (en) | Remote large-pipe-diameter multi-terrain mud-water-balance pipe jacking construction method | |
| CN112081118A (en) | Pile-anchor supporting foundation pit deepening reinforcing and supporting structure and construction method thereof | |
| CN110565634A (en) | Method for repeatedly constructing and utilizing ultra-long steel casing | |
| CN111764374A (en) | Construction method of underground continuous wall in low-clearance environment | |
| CN109024670B (en) | Underground comprehensive pipe gallery protection and reinforcement system penetrating through buried high-voltage cable and reinforcement method | |
| CN214832836U (en) | Caisson type underground garage construction equipment | |
| CN114541783A (en) | Accurate positioning device suitable for permanent-temporary combined steel pipe column and construction method | |
| CN109989415B (en) | Construction method of fabricated foundation | |
| CN111676963A (en) | Steel pipe upright post positioning device and positioning construction method thereof | |
| CN212479071U (en) | Guiding device for construction of SMW construction method pile and SMW construction method pile construction equipment | |
| CN217323070U (en) | Multifunctional hole digging pile lifting device | |
| CN220953402U (en) | Pile verticality adjusting structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211228 |
|
| RJ01 | Rejection of invention patent application after publication |