CN112324441A - Construction method for removing underground shield segments by full-slewing drilling machine - Google Patents
Construction method for removing underground shield segments by full-slewing drilling machine Download PDFInfo
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- CN112324441A CN112324441A CN202011166360.0A CN202011166360A CN112324441A CN 112324441 A CN112324441 A CN 112324441A CN 202011166360 A CN202011166360 A CN 202011166360A CN 112324441 A CN112324441 A CN 112324441A
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- 238000005553 drilling Methods 0.000 title claims abstract description 69
- 238000010276 construction Methods 0.000 title claims abstract description 65
- 230000007246 mechanism Effects 0.000 claims abstract description 84
- 239000002689 soil Substances 0.000 claims abstract description 33
- 238000005520 cutting process Methods 0.000 claims abstract description 25
- 229910000831 Steel Inorganic materials 0.000 claims description 37
- 239000010959 steel Substances 0.000 claims description 37
- 238000005070 sampling Methods 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 238000011010 flushing procedure Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 5
- 238000013461 design Methods 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 230000004888 barrier function Effects 0.000 claims description 3
- 238000009933 burial Methods 0.000 claims description 3
- 239000004567 concrete Substances 0.000 claims description 3
- 230000006698 induction Effects 0.000 claims description 3
- 239000011150 reinforced concrete Substances 0.000 claims description 3
- 239000011435 rock Substances 0.000 claims description 3
- 230000009471 action Effects 0.000 abstract description 3
- 238000005299 abrasion Methods 0.000 abstract description 2
- 230000002411 adverse Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003749 cleanliness Effects 0.000 description 1
- 238000011161 development Methods 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
- 238000005507 spraying Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/08—Lining with building materials with preformed concrete slabs
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/10—Making by using boring or cutting machines
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Environmental & Geological Engineering (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention relates to the technical field of drilling machine construction, and discloses a construction method for removing underground shield segments by a full-slewing drilling machine. Firstly, the obstacles in the construction range are determined, the first mechanism is used for positioning, then the second mechanism provided with the cutting structure is used for clearing underground obstacles so as to avoid abrasion of other construction equipment, the third mechanism is used for crushing and clearing soil and old pipe pieces under the action of the second mechanism, and the influence on the perpendicularity of the pile body can be effectively avoided.
Description
Technical Field
The invention relates to the technical field of drilling machine construction, in particular to a construction method for removing underground shield segments by a full-slewing drilling machine.
Background
Along with the continuous development of economy, in foundation pit support and pile foundation construction, often meet the underground shield section of jurisdiction that construction left over before, especially in construction sites such as subway station, underground intelligent garage, underground building structure and reservoir, if do not do the processing, these old section of jurisdiction often can influence pile foundation engineering construction. If can lead to follow-up pile foundation construction to be obstructed, influence pile body straightness that hangs down, produce adverse effect to pile body quality, the efficiency of construction is low simultaneously, causes adverse effect to the time limit for a project. Therefore, a construction unit is generally required to be capable of constructing a new foundation after the old duct piece is removed, and according to the experience of removing the old duct piece in the past, machine equipment is usually adopted for removing or a rotary excavator drilling machine is directly used for digging, the methods are time-consuming and labor-consuming, and the wear to the used equipment is very large.
Disclosure of Invention
The invention aims to provide a construction method for removing underground shield segments by a full-slewing drilling machine, and aims to solve the problems that in the prior art, construction equipment is abraded when old segments left underground are crushed and removed due to the existence of obstacles during foundation pit construction, and the perpendicularity of a pile body cannot be ensured.
The construction method for removing the underground shield segments by the full-slewing drilling machine comprises a drilling machine body, wherein the drilling machine body is connected with a first mechanism for drilling and sampling a construction range, a second mechanism for cutting an obstacle layer and a third mechanism for excavating and crushing old segments.
The concrete construction steps comprise:
s1, data arrangement and obstacle determination, wherein constructors carry out arrangement and analysis on original construction data or drawings and know the type and distribution condition of underground obstacles in a construction range through induction equipment;
s2, determining the drilling positioning and obstacle clearing range, performing drilling sampling through the first mechanism in the new foundation construction range, determining the body position and the burial depth of the old underground pipe, and then determining the influence field construction range;
s3, drilling by a second mechanism, namely sleeving the second mechanism on the drilling machine body in a new foundation construction range, checking the drilling holes and driving the drilling to drill, wherein when the first mechanism is connected with a high-pressure water gun and drills into the upper part of an old pipe piece, the soil around the old pipe piece in the second mechanism is washed away by using high-pressure water, the frictional resistance between the second mechanism and the soil is reduced, and the second mechanism generates downward pressure and torque to cut obstacles such as soil bodies, rock stratums, reinforced concrete and the like and drills at the position of a sampling hole determined by the first mechanism in a 360-degree angle mode;
s4, crushing and removing old pipe pieces, wherein when the second mechanism drills into the old pipe pieces, the third mechanism is used for completely removing soil layers in the second mechanism, then the second mechanism is used for grinding in a segmented mode to penetrate through the old pipe pieces, the third mechanism continuously impacts the old pipe pieces to crush the old pipe pieces, and the crushed old pipe pieces are removed;
s5, pulling out the second mechanism and reinforcing the backfill soil body: the second mechanism generates lower pressure and torque under the driving of the drilling machine body, the second mechanism rotates to drill into the ground and completely sleeve the pile body for cutting operation, the pile body is twisted off by utilizing the friction force between the inner wall of the second mechanism and the pile body, the broken pile body is taken out by using the third mechanism, and the operation is carried out in sequence until the whole pile body is removed;
then, soil is backfilled in the pile hole, the backfilled soil is tamped to the designed elevation in the process of backfilling the soil, the weak stratum can be reinforced by utilizing jet grouting, and obstacles in the construction range are removed at intervals to ensure the verticality;
and S6, constructing a new foundation according to the design drawing.
Further, in the step S5, when the second mechanism completely covers the pile body for cutting operation, the second mechanism may optionally use a wedge hammer to hammer along the inner wall of the second mechanism, so that the hammer head of the wedge hammer is embedded into the pile body and the second mechanism, the second mechanism rotates to twist off the pile body, and the broken pile body is tied up by a crane and taken out, and the operation is performed in sequence until the whole pile body is removed.
Further, it is characterized in that said first means comprise at least a drill rod.
Further, the second mechanism at least comprises a steel sleeve, and a cutting structure for cutting the obstacle is arranged at the lower part of the steel sleeve.
Further, the third structure at least comprises a drill bit and a flushing grab bucket, and a grabbing structure is arranged at the lower part of the flushing grab bucket.
Furthermore, the drill rod can be arranged inside the steel sleeve and connected with the high-pressure water gun, and soil and old pipe sheets in the steel sleeve are crushed and removed during construction.
Further, the drilling machine body is provided with a holding device connected with the steel sleeve.
Further, the drill bit and the drift grab may be disposed within the steel casing.
Further, the grab bucket is connected with the drilling machine body through the drill bit, and the drill bit extends into the grab bucket.
Furthermore, the drilling machine body is provided with a transmission device for driving the first mechanism, the second mechanism and the third mechanism.
Compared with the prior art, the construction method for removing the underground shield segments by the full-slewing drilling machine comprises a drilling machine body, wherein the drilling machine body is connected with a first mechanism for drilling and sampling a construction range, a second mechanism for cutting a barrier layer and a third mechanism for excavating and removing the broken old segments. Firstly, the obstacles in the construction range are determined, the first mechanism is used for positioning, then the second mechanism provided with the cutting structure is used for clearing underground obstacles so as to avoid abrasion of other construction equipment, the third mechanism is used for crushing and clearing soil and old pipe pieces under the action of the second mechanism, and the influence on the perpendicularity of the pile body can be effectively avoided.
Drawings
FIG. 1 is a schematic view of the construction process of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The following describes the implementation of the present invention in detail with reference to specific embodiments.
The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not intended to indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limiting the present invention, and the specific meaning of the terms may be understood by those skilled in the art according to specific circumstances.
Referring to fig. 1, a preferred embodiment of the present invention is shown.
The invention provides a construction method for removing underground shield segments by a full-slewing drilling machine, which comprises a drilling machine body, wherein the drilling machine body is connected with a first mechanism for drilling and sampling a construction range, a second mechanism for cutting an obstacle layer and a third mechanism for excavating and removing old broken segments, as shown in figure 1. The construction steps comprise: s1, data arrangement and obstacle determination; s2, determining the drilling positioning and obstacle clearing range; s3, drilling by a second mechanism; s4, crushing and removing the old pipe pieces; s5, pulling out the second mechanism and reinforcing the backfill soil body; and S6, constructing a new foundation according to the design drawing.
Specific embodiments are described below with respect to the corresponding schemes of the above figures:
first embodiment
Referring to fig. 1, in the present embodiment, the construction method for removing underground shield segments by using a full-circle slewing drilling machine includes a drilling machine body, where the drilling machine body is connected to a first mechanism for drilling and sampling a construction range, a second mechanism for cutting a barrier layer, and a third mechanism for excavating and breaking old segments.
Specifically, the drilling machine body is provided with a transmission device, the first mechanism, the second mechanism and the third mechanism can be respectively driven through the transmission device, and the transmission device can be a motor, an oil cylinder and the like. The first mechanism at least comprises a drill rod or a structure with the same function as the drill rod, and drilling positioning can be carried out in an influence construction range through the drill rod; the second mechanism at least comprises a steel sleeve, the lower part of the steel sleeve is provided with a cutting structure for cutting the obstacle, or a tubular structure can be selected, meanwhile, the cutting structure capable of cutting the obstacle is arranged in the afternoon, and the cutting structure can be used for selecting sharp cutting structures such as a cutting cone, a cutter head and the like; the third structure includes drill bit and dashes the grab bucket at least, it passes through to dash the grab bucket the drill bit is connected the rig body, the drill bit extends to in dashing the grab bucket, drill bit and dashing the grab bucket can be located in the steel casing pipe, it is equipped with the structure of snatching to dash the grab bucket lower part, it is sharp shape to snatch the structure, utilize it can with soil, old pipe piece in the steel casing pipe are clear away.
The drilling machine body is provided with a holding device connected with the steel sleeve, the holding device can be composed of a plurality of clamping blocks arranged around the circumference of the steel sleeve, the clamping blocks are mutually connected and point the stress to the center of the steel sleeve, and an oil cylinder is mainly used for providing power. The drill rod can be arranged inside the steel sleeve and connected with the high-pressure water gun, and the high-pressure water gun is matched to crush and remove soil and old pipe sheets in the steel sleeve during construction.
According to the technical scheme, the concrete construction steps comprise the following steps:
s1, data arrangement and obstacle determination, wherein constructors carry out arrangement and analysis on original construction data or drawings and know the type and distribution condition of underground obstacles in a construction range through induction equipment;
s2, determining a drilling positioning and obstacle clearing range, performing drilling sampling through the drill rod in a new foundation construction range, determining the body position and the burial depth of an old underground pipe, and then determining an influence field construction range;
s3, drilling a steel sleeve, namely sleeving the steel sleeve on the drilling machine body within the range influencing new foundation construction, checking and driving the drilling of the drilling machine body with a drill hole, when the drill rod is connected with a high-pressure water gun and drills into the upper part of an old pipe piece, using high-pressure water to wash away soil around the old pipe piece in the steel sleeve, reducing frictional resistance between the steel sleeve and the soil, cutting obstacles such as soil, rock stratum, reinforced concrete and the like by the steel sleeve under the action of lower pressure and torque, drilling at the position of a sampling hole determined by the drill rod in a 360-degree mode, cutting away the obstacle layer through the steel sleeve, effectively avoiding the loss of the internal drill rod, drill bit and washing grab bucket, and simultaneously ensuring the verticality of the drill rod and further ensuring the verticality of a pile body;
s4, crushing and removing old pipe pieces, wherein when the steel sleeve drills into the old pipe pieces, all soil layers in the steel sleeve are removed by using the drill rod, then the steel sleeve is ground in a segmented mode to penetrate through the old pipe pieces, the drill bit continuously impacts the old pipe pieces to crush the old pipe pieces and excavates the crushed old pipe pieces, and when the flushing grab bucket is used for removing the old pipe pieces, the cleanliness of the soil and the old pipe pieces at the bottoms of pile holes needs to be guaranteed;
s5, pulling out the steel sleeve and reinforcing the backfill soil body: the steel sleeve generates lower pressure and torque under the driving of the drilling machine body, the steel sleeve rotates to drill into the ground and completely sleeve the pile body to carry out cutting operation, the pile body is twisted off by utilizing the friction force between the inner wall of the steel sleeve and the pile body, the broken pile body is taken out by using the flushing grab bucket and sequentially operated until the whole pile body is removed, or a wedge-shaped hammer is hammered along the inner wall of the steel sleeve, the hammer head of the wedge-shaped hammer is embedded into the pile body and the steel sleeve, the steel sleeve rotates to break the pile body, the broken pile body is tied up and taken out by using a crane and sequentially operated until the whole pile body is removed;
then, soil is backfilled in the pile hole, the backfilled soil is tamped to a designed elevation in the process of backfilling the soil, a flushing grab bucket and a drill bit can be used for tamping the backfilled soil, the weak stratum can be reinforced by means of rotary spraying, and obstacles in a construction range are removed at intervals to guarantee perpendicularity;
and S6, constructing a new foundation according to the design drawing.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The construction method for removing the underground shield segments by the full-slewing drilling machine is characterized by comprising a drilling machine body, wherein the drilling machine body is connected with a first mechanism for drilling and sampling a construction range, a second mechanism for cutting a barrier layer and a third mechanism for excavating and crushing old segments;
the concrete construction steps comprise:
s1, data arrangement and obstacle determination, wherein constructors carry out arrangement and analysis on original construction data or drawings and know the type and distribution condition of underground obstacles in a construction range through induction equipment;
s2, determining the drilling positioning and obstacle clearing range, performing drilling sampling through the first mechanism in the new foundation construction range, determining the body position and the burial depth of the old underground pipe, and then determining the influence field construction range;
s3, drilling by a second mechanism, namely sleeving the second mechanism on the drilling machine body in a new foundation construction range, checking the drilling holes and driving the drilling to drill, wherein when the first mechanism is connected with a high-pressure water gun and drills into the upper part of an old pipe piece, the soil around the old pipe piece in the second mechanism is washed away by using high-pressure water, the frictional resistance between the second mechanism and the soil is reduced, and the second mechanism generates downward pressure and torque to cut obstacles such as soil bodies, rock stratums, reinforced concrete and the like and drills at the position of a sampling hole determined by the first mechanism in a 360-degree angle mode;
s4, crushing and removing old pipe pieces, wherein when the second mechanism drills into the old pipe pieces, the third mechanism is used for completely removing soil layers in the second mechanism, then the second mechanism is used for grinding in a segmented mode to penetrate through the old pipe pieces, the third mechanism continuously impacts the old pipe pieces to crush the old pipe pieces, and the crushed old pipe pieces are removed;
s5, pulling out the second mechanism and reinforcing the backfill soil body: the second mechanism generates lower pressure and torque under the driving of the drilling machine body, the second mechanism rotates to drill into the ground and completely sleeve the pile body for cutting operation, the pile body is twisted off by utilizing the friction force between the inner wall of the second mechanism and the pile body, the broken pile body is taken out by using the third mechanism, and the operation is carried out in sequence until the whole pile body is removed;
then, soil is backfilled in the pile hole, the backfilled soil is tamped to the designed elevation in the process of backfilling the soil, the weak stratum can be reinforced by utilizing jet grouting, and obstacles in the construction range are removed at intervals to ensure the verticality;
and S6, constructing a new foundation according to the design drawing.
2. The construction method for removing underground shield segments by using a full-rotary drilling machine according to claim 1, wherein in the step S5, when the second mechanism completely covers the pile body for cutting operation, optionally, a wedge-shaped hammer is hammered along the inner wall of the second mechanism, so that the hammer head of the wedge-shaped hammer is embedded between the pile body and the second mechanism, the second mechanism rotates to twist off the pile body, the broken pile body is tied up and taken out by using a crane, and the operation is performed sequentially until the whole pile body is removed.
3. The method of claim 2, wherein the first mechanism comprises at least a drill pipe.
4. The construction method for removing underground shield segments by using the full slewing drilling machine according to claim 3, wherein the second mechanism at least comprises a steel sleeve, and a cutting structure for cutting obstacles is arranged at the lower part of the steel sleeve.
5. The construction method for removing underground shield segments by using the full-rotary drilling machine according to claim 4, wherein the third structure at least comprises a drill bit and a grab bucket, and a grabbing structure is arranged at the lower part of the grab bucket.
6. The construction method for removing underground shield segments by the full slewing drilling machine according to claim 5, wherein the drill rod can be arranged inside the steel sleeve and connected with the high-pressure water gun, and soil and old segments in the steel sleeve are crushed and removed during construction.
7. The construction method for removing underground shield segments by using the full slewing drilling machine according to claim 6, wherein the drilling machine body is provided with a holding device connected with the steel sleeve.
8. The construction method for removing underground shield segments by using the full slewing drilling machine according to claim 5, wherein the drill bit and the grab bucket can be arranged in the steel sleeve.
9. The construction method for removing underground shield segments by using the full-rotary drilling machine according to claim 8, wherein the flushing grab bucket is connected with the drilling machine body through the drill bit, and the drill bit extends into the flushing grab bucket.
10. The construction method for removing underground shield segments by using the full slewing drilling machine as claimed in claim 1, wherein the drilling machine body is provided with a transmission device for driving the first mechanism, the second mechanism and the third mechanism.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011166360.0A CN112324441A (en) | 2020-10-27 | 2020-10-27 | Construction method for removing underground shield segments by full-slewing drilling machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011166360.0A CN112324441A (en) | 2020-10-27 | 2020-10-27 | Construction method for removing underground shield segments by full-slewing drilling machine |
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| CN112324441A true CN112324441A (en) | 2021-02-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114215474A (en) * | 2021-11-03 | 2022-03-22 | 江苏无锡二建建设集团有限公司 | Obstacle removing construction process of full-circle drilling machine |
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| CN106193042A (en) * | 2016-07-20 | 2016-12-07 | 中建八局第三建设有限公司 | Next-door neighbour's underground structure sandy soil layer is gone along with sb. to guard him obstacle pile sweep-out method at ground wall |
| CN106761792A (en) * | 2017-01-20 | 2017-05-31 | 武汉市市政建设集团有限公司 | A kind of full-sleeve full-rotation drill sleeve and shield cutter preceding object thing sweep-out method |
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2020
- 2020-10-27 CN CN202011166360.0A patent/CN112324441A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101761083A (en) * | 2008-12-24 | 2010-06-30 | 上海市基础工程公司 | Underground continuous wall obstacle clearing construction method for traversing ultra-thick obstacle |
| CN101629421A (en) * | 2009-08-04 | 2010-01-20 | 上海隧道工程股份有限公司 | Method for pulling out deep pile foundation by utilizing full slewing drilling machine |
| CN105155516A (en) * | 2015-08-14 | 2015-12-16 | 江苏省华建建设股份有限公司 | Method for constructing cast-in-situ bored pile before comprehensively removing underground barriers |
| CN106193042A (en) * | 2016-07-20 | 2016-12-07 | 中建八局第三建设有限公司 | Next-door neighbour's underground structure sandy soil layer is gone along with sb. to guard him obstacle pile sweep-out method at ground wall |
| CN106761792A (en) * | 2017-01-20 | 2017-05-31 | 武汉市市政建设集团有限公司 | A kind of full-sleeve full-rotation drill sleeve and shield cutter preceding object thing sweep-out method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114215474A (en) * | 2021-11-03 | 2022-03-22 | 江苏无锡二建建设集团有限公司 | Obstacle removing construction process of full-circle drilling machine |
| CN114215474B (en) * | 2021-11-03 | 2023-09-15 | 江苏无锡二建建设集团有限公司 | Barrier removing construction process of full rotary drilling machine |
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