CN112832553A - Static cutting and dismantling method for diaphragm wall clinging to outer wall of underground structure - Google Patents
Static cutting and dismantling method for diaphragm wall clinging to outer wall of underground structure Download PDFInfo
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- 238000005520 cutting process Methods 0.000 title claims abstract description 115
- 238000000034 method Methods 0.000 title claims abstract description 25
- 230000003068 static effect Effects 0.000 title claims abstract description 19
- 229910003460 diamond Inorganic materials 0.000 claims abstract description 38
- 239000010432 diamond Substances 0.000 claims abstract description 38
- 238000005553 drilling Methods 0.000 claims abstract description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 23
- 230000000149 penetrating effect Effects 0.000 claims description 16
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 238000010276 construction Methods 0.000 abstract description 11
- 238000004140 cleaning Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/08—Wrecking of buildings
- E04G23/082—Wrecking of buildings using shears, breakers, jaws and the like
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Abstract
The invention discloses a static cutting and dismantling method for an underground diaphragm wall clinging to an outer wall of an underground structure, which belongs to the field of buildings and comprises the following steps of S1, drilling a row of overlapped row holes in the thickness direction by using a diamond water drill to form a row hole cutting surface; s2, drilling at least one vertical stringing hole along the height direction; s3 cutting a first opening section block from the diaphragm wall through the vertical wire-passing hole and the cutting surface of the row hole by using a diamond wire saw; s4, clearing the first-opened segment blocks to form a dismantling space; s5, respectively drilling a first rope threading hole, a second rope threading hole and a third rope threading hole on the underground diaphragm wall along the width direction, the thickness direction and the height direction; s6 cutting middle section blocks from the diaphragm wall through the first and second rope-passing holes and the second and third rope-passing holes; s7 removing the middle segment blocks to enlarge the demolition space; s8 repeating S5-S7 until the removal space extends to both ends in the width direction; s9 cycles through steps S1-S8 from top to bottom in the height direction. The invention is convenient for construction, easy for popularization, simultaneously reduces the generation of noise in the construction process and is green and environment-friendly.
Description
Technical Field
The invention relates to the field of building construction, in particular to a static cutting and dismantling method for an underground diaphragm wall clinging to an outer wall of an underground structure.
Background
With the continuous development of the existing construction technology and design concept, the environment around the construction project becomes more and more complex. In addition, the construction requirements of safety culture also enable more and more projects to abandon the traditional manual and mechanical chiseling methods, and start to accept and use the static cutting dismantling method comprising diamond water drilling guiding holes and diamond wire saw perforating cutting.
In large-scale engineering, deep foundation pit engineering and peripheral building engineering often need to be under construction simultaneously. In order to not influence the construction of peripheral building engineering, the diaphragm wall and the plugging wall which are firstly used for the deep foundation pit engineering are usually required to be dismantled in the follow-up process, and the dismantling difficulty is higher because the diaphragm wall is adjacent to the structure of the peripheral building, so that the follow-up construction is also easily influenced greatly.
Disclosure of Invention
Aiming at the problem that the diaphragm wall close to a building structure is not easy to dismantle in the prior art, the invention aims to provide a static cutting and dismantling method for the diaphragm wall clinging to the outer wall of an underground structure.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a static cutting and dismantling method for an underground diaphragm wall clinging to an outer wall of an underground structure comprises the following steps,
step S1, drilling a row of overlapped row holes inwards from the outer side surface of the diaphragm wall along the thickness direction of the diaphragm wall by using a diamond water drill to form a row hole cutting surface, wherein the row hole cutting surface is unfolded along the width direction of the diaphragm wall and penetrates through the diaphragm wall along the thickness direction;
step S2, drilling at least one vertical rope penetrating hole downwards from the top surface of the underground diaphragm wall along the height direction of the underground diaphragm wall by using a diamond water drill, wherein the vertical rope penetrating holes are connected with the inner side surface of the underground diaphragm wall, and the lower ends of the vertical rope penetrating holes are communicated with the cutting surfaces of the row holes;
step S3, cutting the diaphragm wall through the vertical stringing holes and the row hole cutting surfaces by using a diamond rope saw so as to open at least one stringing leading hole cutting surface on the diaphragm wall, wherein the stringing leading hole cutting surfaces are communicated with the row hole cutting surfaces so as to cut the first opening section block from the diaphragm wall;
step S4, removing the first section blocks to form a dismantling space on the diaphragm wall;
step S5, drilling a first rope threading hole from the dismantling space into the underground diaphragm wall along the width direction, drilling a second rope threading hole from the outer side surface of the underground diaphragm wall inwards along the thickness direction, and drilling a third rope threading hole from the top surface of the underground diaphragm wall downwards along the height direction by using a diamond water drill, wherein the first rope threading hole and the third rope threading hole are connected with the inner side surface of the underground diaphragm wall, and the first rope threading hole, the second rope threading hole and the third rope threading hole are intersected;
step S6, cutting the diaphragm wall through the first stringing hole and the second stringing hole to form a cutting bottom surface and cutting the diaphragm wall through the second stringing hole and the third stringing hole to form a cutting side surface by using a diamond rope saw, wherein the cutting bottom surface is communicated with the cutting side surface to cut the middle section blocks from the diaphragm wall;
a step S7 of clearing the middle segment block to enlarge the removal space;
step S8, repeating the step S5-the step S7 until the dismantling space extends to the two ends of the width direction of the diaphragm wall;
step S9, looping from top to bottom along the height direction of the diaphragm wall to go through steps S1-S8.
Preferably, in step S1, the row of hole cutting surfaces are arranged horizontally; in step S3, the stringing hole cutting surfaces are vertically arranged; in step S6, the cutting bottom surface is horizontally arranged and the cutting side surface is vertically arranged.
Preferably, in step S2, when the cutting surface of the row of holes is connected to one end surface in the width direction of the diaphragm wall, there is one vertical stringing hole; when the hole arrangement cutting surface is located inside the width direction of the diaphragm wall, two vertical rope penetrating holes are formed, and the two vertical rope penetrating holes are located at two ends of the hole arrangement cutting surface respectively.
Preferably, in steps S4 and S7, the cleaning is performed by drilling and then hoisting the open segment block and the middle segment block, or by crushing and then transporting the open segment block and the middle segment block.
Further, before step S1, it further includes,
step S0, excavating earthwork to expose the first section to be cut on the diaphragm wall;
wherein, the step 9 is to circularly perform the steps S0 to S8 from top to bottom along the height direction of the diaphragm wall.
Preferably, in step S1, the size of the overlapping portion of the row of holes is not less than 20% of the diameter of the diamond water drill.
Preferably, the width of the first opening section block and the middle section block is 1300-3000 mm.
Preferably, in step S9, the diaphragm wall is divided into four height sections, namely, a vertical first section, a vertical second section, a vertical third section and a vertical fourth section, from top to bottom along the height direction, and the steps S1 to S8 are respectively performed; wherein, follow the width of the first division section piecemeal and the interlude piecemeal that cut out in vertical first section is 3000mm, follow the width of the first division section piecemeal and the interlude piece that cut out in vertical second section is 1500mm, follow the width of the first division section piecemeal and the interlude piece that cut out in vertical third section and vertical fourth section is 1300 mm.
Preferably, the vertical second segment is divided into a segment a and a segment b from top to bottom along the height direction, and the steps of step S1 to step S8 are performed respectively.
Preferably, the diameter of the drill hole of the diamond water drill is larger than or equal to the diameter of a steel wire rope in the diamond wire saw.
By adopting the technical scheme, due to the use of the diamond water drilling technology and the arrangement of the row-hole cutting surface formed on the diaphragm wall, the vertical wire-penetrating hole formed on the top surface of the diaphragm wall can be easily connected to the row-hole cutting surface, so that the diamond wire saw can conveniently penetrate through the row-hole cutting surface for cutting, and the first-cut section is conveniently cut from the diaphragm wall, thereby facilitating the subsequent cutting construction. The technical scheme of the invention is convenient for construction and easy for popularization; the cutting surface is formed by arranging the holes, so that the problem that the wall body at the bottom of the first section is difficult to vertically perforate to form a working surface is solved, and the method has high application applicability; static cutting and water drill cutting are adopted, noise generated in the construction process is reduced, and the method is green and environment-friendly.
Drawings
FIG. 1 is a flow chart of a method of the present invention;
FIG. 2 is a schematic diagram of the present invention during cutting of a first segment block;
FIG. 3 is a schematic diagram of the present invention after the first section has been cut away;
FIG. 4 is a schematic cut-away view of a middle segment immediately adjacent to an initial segment in accordance with the present invention;
FIG. 5 is a cut away view of a middle segment of the present invention immediately adjacent to the first segment;
fig. 6 is a schematic diagram of the height segmentation and the width of the cutting blocks of the diaphragm wall in the present invention.
In the drawing, 1-an underground wall, 2-a row of hole cutting surfaces, 3-a threading and leading hole cutting surface, 4-a first opening section block, 5-a cutting line A, 6-a dismantling space, 7-a cutting bottom surface, 8-a cutting side surface, 9-a middle section block, 10-an underground structure outer wall, 11-a vertical threading hole, 12-a first threading hole, 13-a second threading hole, 14-a third threading hole, 15-a cutting line B, 16-a cutting line C, 101-a vertical first section, 102-a vertical second section, 103-a vertical third section, 104-a vertical fourth section, 1021-a section and 1022-B section.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
It should be noted that in the description of the present invention, the terms "upper", "lower", "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on structures shown in the drawings, and are only used for convenience in describing the present invention, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the technical scheme, the terms "first" and "second" are only used for referring to the same or similar structures or corresponding structures with similar functions, and are not used for ranking the importance of the structures, or comparing the sizes or other meanings.
In addition, unless expressly stated or limited otherwise, the terms "mounted" and "connected" are to be construed broadly, e.g., the connection may be a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the two structures can be directly connected or indirectly connected through an intermediate medium, and the two structures can be communicated with each other. To those skilled in the art, the specific meanings of the above terms in the present invention can be understood in light of the present general concepts, in connection with the specific context of the scheme.
A static cutting demolition method of an underground diaphragm wall against an external wall 10 of an underground structure, as shown in fig. 1, comprises the following steps,
step S1, drilling a row of overlapped row holes inwards from the outer side surface of the underground diaphragm wall 1 along the thickness direction of the underground diaphragm wall 1 by using a diamond water drill to form a row hole cutting surface 2, wherein the row hole cutting surface 2 is unfolded along the width direction of the underground diaphragm wall 1, and the row hole cutting surface 2 penetrates through the underground diaphragm wall 1 along the thickness direction;
wherein, the cutting surface 2 of the row of holes is arranged in a horizontal shape, and the size of the mutual overlapping part of the row of holes is not less than 20% of the drilling diameter of the diamond water drill, for example, when the drilling diameter of the diamond water drill is 100mm, the size of the mutual overlapping part of the row of holes is not less than 20 mm.
Step S2, drilling at least one vertical rope penetrating hole 11 downwards from the top surface of the underground diaphragm wall 1 along the height direction of the underground diaphragm wall 1 by using a diamond water drill, wherein the vertical rope penetrating holes 11 are all connected with the inner side surface of the underground diaphragm wall 1, and the lower end of each vertical rope penetrating hole 11 is communicated with a hole arrangement cutting surface;
it can be understood that when the row of hole cutting surfaces 2 are connected with one end surface of the diaphragm wall 1 in the width direction (i.e. the row of holes are punched from one end surface of the diaphragm wall 1 in the width direction), only one vertical stringing hole 11 is provided; when the hole arrangement cutting surface 2 is located inside the width direction of the diaphragm wall 1, two vertical rope penetrating holes 11 are arranged, and the two vertical rope penetrating holes 11 are respectively located at two ends (two ends in the width direction of the diaphragm wall 1) of the hole arrangement cutting surface 2.
Step S3, cutting the diaphragm wall 1 through the vertical stringing holes 11 and the row hole cutting surfaces 2 by using a diamond rope saw to open at least one stringing leading hole cutting surface 3 on the diaphragm wall 1, wherein the stringing leading hole cutting surfaces 3 are communicated with the row hole cutting surfaces 2 to cut the first opening section blocks 4 from the diaphragm wall 1;
it will be appreciated that the diamond wire saw performs a wire cutting operation according to cutting line a5 shown in fig. 2, so as to cut a cutting surface 3 of a stringing hole arranged in a vertical shape. As shown in fig. 2, the row-hole cutting surface 2 is arranged inside the diaphragm wall 1 in the width direction, so that after a vertical rope-threading hole 11 is drilled at both ends of the diaphragm wall through a diamond water drill, a rope-threading hole cutting surface 3 is cut through a diamond rope saw, and a first division section 4 is cut in the diaphragm wall 1, as shown in fig. 3.
And, considering the limit of hoisting capacity, the first opening segment block 4 and the middle segment block are set to have a width of 1.3-3 m. In actual operation, the width of the first opening segment block 4 is suitable for meeting the operation space requirement for subsequent cutting of the middle segment block 9.
And the diameter of the drill hole of the diamond water drill is set to be larger than or equal to the diameter of the steel wire rope in the diamond wire saw, for example, the diameter of the steel wire rope in the diamond wire saw is 53.5 mm.
Step S4, clearing the first segment block 4 to form a demolition space 6 on the diaphragm wall 1, as shown in fig. 3;
in this embodiment, the cleaning can be performed by drilling the segment 4 (for example, drilling by diamond water drill) first and then hoisting; or the first segmented blocks 4 are broken and then transported out for cleaning.
Step S5, drilling a first rope threading hole 12 from the dismantling space 6 into the underground diaphragm wall 1 along the width direction, drilling a second rope threading hole 13 from the outer side surface of the underground diaphragm wall 1 along the thickness direction, and drilling a third rope threading hole 14 from the top surface of the underground diaphragm wall 1 downwards along the height direction by using a diamond water drill, wherein the first rope threading hole 12 and the third rope threading hole 14 are connected with the inner side surface of the underground diaphragm wall 1, and the first rope threading hole 12, the second rope threading hole 13 and the third rope threading hole 14 are intersected and converged;
step S6, cutting the diaphragm wall 1 through the first and second rope- threading holes 12 and 13 to form a cut bottom surface 7, and cutting the diaphragm wall 1 through the second and third rope- threading holes 13 and 14 to form a cut side surface 8 by using a diamond rope saw, wherein the cut bottom surface 7 is communicated with the cut side surface 8 to cut the middle section block 9 from the diaphragm wall 1;
it will be appreciated that in this embodiment the cutting bottom 7 is arranged horizontally, while the cutting side 8 is arranged vertically. When using a diamond wire saw for cutting, a cutting bottom 7 arranged horizontally is cut out by cutting a wire along a cutting line B15 as shown in fig. 4, and a cutting side 8 arranged vertically is cut out by cutting a wire along a cutting line C16 as shown in fig. 4, so that a middle block 9 next to the first block 4 is cut out on the diaphragm wall 1 as shown in fig. 5.
And, considering the limit of hoisting capacity, the width of the middle section block 9 is set to 1300-3000 mm.
Step S7, clearing the middle segment block 9 to enlarge the removal space 6, as shown in fig. 5;
in this embodiment, as with the first-stage segment block 4, the cleaning may be performed by drilling a hole (for example, drilling a hole with a diamond water drill) in the middle-stage segment block 9 and then hoisting the hole; or the middle section blocks 9 are firstly crushed and then transported out for cleaning.
Step S8, repeating the step S5-the step S7 until the demolition space 6 extends to the two ends of the diaphragm wall 1 in the width direction;
it is understood that, since it is preferable in this embodiment that the initial segment block 4 is disposed at the middle position in the width direction of the diaphragm wall 1, the cutting of the intermediate segment block 9 is performed along two directions in the width direction of the diaphragm wall 1, and both directions in the width direction of the diaphragm wall 1 extend to both ends of the diaphragm wall 1.
Step S9, the steps S1 to S8 are performed circularly from top to bottom along the height direction of the diaphragm wall 1.
Because the diaphragm wall 1 usually has a certain height dimension and is limited by the hoisting capability, the height dimensions of the first opening segment block 4 and the middle segment block 9 are usually difficult to be disassembled at one time, so the diaphragm wall 1 needs to be divided into a plurality of segments along the height direction thereof according to the hoisting removal capability and disassembled for a plurality of times.
For example, a newly-built terminal building of the three-phase project of the Hangzhou Xiaoshan international airport and the north side of the land-side traffic center project are adjacent to the subway station, the elevation of the large surface at the bottom of the foundation pit of the adjacent traffic center is-19.25 meters, the supporting mode is that the existing subway station underground continuous wall is shared, and three reinforced concrete opposite supports are arranged. Then, as shown in fig. 6, the underground diaphragm wall 1 can be divided into four height sections from top to bottom along the height direction, namely, a vertical first section 101, a vertical second section 102, a vertical third section 103 and a vertical fourth section 104, and the steps of step S1-step S8 are respectively performed for each height section; the width of the initial segment block 4 and the middle segment block 9 cut out of the vertical first segment 101 is preferably 3000mm, as shown by a dimension a in fig. 6, the width of the initial segment block 4 and the middle segment block 9 cut out of the vertical second segment 102 is preferably 1500mm, as shown by a dimension b in fig. 6, and the width of the initial segment block 4 and the middle segment block 9 cut out of the vertical third segment 103 and the vertical fourth segment 104 is preferably 1300mm, as shown by a dimension c in fig. 6.
When the cutting in the steps S1-S8 is carried out, the vertical first section 101 is cut to the bottom of the crown beam, the vertical second section 102 is cut to 200mm below the bottom of the second support, the vertical third section 103 is cut to 200mm below the bottom of the third support, and the vertical fourth section 104 is cut to the height of the bottom of the cushion layer. Considering the drilling and hoisting capabilities, the vertical second segment 102 is divided into a segment 1021 and a segment 1022, and the steps from step S1 to step S8 are performed for the segment 1021 and the segment 1022, respectively.
In one embodiment, before step S1, step S0 is further included:
step S0, excavating earthwork to completely expose the first opening section block 4 to be cut on the diaphragm wall 1; accordingly, step 9 is performed by looping from top to bottom along the height direction of the diaphragm wall 1 from step S0 to step S8. That is, each time one elevation section is cut from the diaphragm wall 1, earth excavation work is performed again so as to perform cutting of the next elevation section.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, and the scope of protection is still within the scope of the invention.
Claims (10)
1. A static cutting and dismantling method for an underground diaphragm wall clinging to an outer wall of an underground structure is characterized in that: comprises the following steps of (a) carrying out,
step S1, drilling a row of overlapped row holes inwards from the outer side surface of the diaphragm wall along the thickness direction of the diaphragm wall by using a diamond water drill to form a row hole cutting surface, wherein the row hole cutting surface is unfolded along the width direction of the diaphragm wall and penetrates through the diaphragm wall along the thickness direction;
step S2, drilling at least one vertical rope penetrating hole downwards from the top surface of the underground diaphragm wall along the height direction of the underground diaphragm wall by using a diamond water drill, wherein the vertical rope penetrating holes are connected with the inner side surface of the underground diaphragm wall, and the lower ends of the vertical rope penetrating holes are communicated with the cutting surfaces of the row holes;
step S3, cutting the diaphragm wall through the vertical stringing holes and the row hole cutting surfaces by using a diamond rope saw so as to open at least one stringing leading hole cutting surface on the diaphragm wall, wherein the stringing leading hole cutting surfaces are communicated with the row hole cutting surfaces so as to cut the first opening section block from the diaphragm wall;
step S4, removing the first section blocks to form a dismantling space on the diaphragm wall;
step S5, drilling a first rope threading hole from the dismantling space into the underground diaphragm wall along the width direction, drilling a second rope threading hole from the outer side surface of the underground diaphragm wall inwards along the thickness direction, and drilling a third rope threading hole from the top surface of the underground diaphragm wall downwards along the height direction by using a diamond water drill, wherein the first rope threading hole and the third rope threading hole are connected with the inner side surface of the underground diaphragm wall, and the first rope threading hole, the second rope threading hole and the third rope threading hole are intersected;
step S6, cutting the diaphragm wall through the first stringing hole and the second stringing hole to form a cutting bottom surface and cutting the diaphragm wall through the second stringing hole and the third stringing hole to form a cutting side surface by using a diamond rope saw, wherein the cutting bottom surface is communicated with the cutting side surface to cut the middle section blocks from the diaphragm wall;
a step S7 of clearing the middle segment block to enlarge the removal space;
step S8, repeating the step S5-the step S7 until the dismantling space extends to the two ends of the width direction of the diaphragm wall;
step S9, looping from top to bottom along the height direction of the diaphragm wall to go through steps S1-S8.
2. A static cutting demolition method of an underground diaphragm wall clinging to an external wall of an underground structure according to claim 1, characterized in that: in step S1, the row of hole cutting surfaces are arranged horizontally; in step S3, the stringing hole cutting surfaces are vertically arranged; in step S6, the cutting bottom surface is horizontally arranged and the cutting side surface is vertically arranged.
3. A static cutting demolition method of an underground diaphragm wall clinging to an external wall of an underground structure according to claim 1, characterized in that: in the step S2, in step S2,
when the cutting surface of the row of holes is connected with one end face in the width direction of the diaphragm wall, one vertical rope penetrating hole is arranged; when the hole arrangement cutting surface is located inside the width direction of the diaphragm wall, two vertical rope penetrating holes are formed, and the two vertical rope penetrating holes are located at two ends of the hole arrangement cutting surface respectively.
4. A static cutting demolition method of an underground diaphragm wall clinging to an external wall of an underground structure according to claim 1, characterized in that: in steps S4 and S7, the block is removed by drilling and hoisting the block or by breaking the block and then transporting it out.
5. A static cutting demolition method of an underground diaphragm wall clinging to an external wall of an underground structure according to claim 1, characterized in that: prior to step S1, there is further included,
step S0, excavating earthwork to expose the first section to be cut on the diaphragm wall;
wherein, the step 9 is to circularly perform the steps S0 to S8 from top to bottom along the height direction of the diaphragm wall.
6. A static cutting demolition method of an underground diaphragm wall clinging to an external wall of an underground structure according to claim 1, characterized in that: in step S1, the size of the overlapping part of the row of holes is not less than 20% of the drilling diameter of the diamond water drill.
7. A static cutting demolition method of an underground diaphragm wall clinging to an external wall of an underground structure according to claim 1, characterized in that: the width of the first opening section block and the middle section block is 1300-3000 mm.
8. A static cutting demolition method of an underground diaphragm wall clinging to an external wall of an underground structure according to claim 7, characterized in that: in step S9, dividing the diaphragm wall into four height sections, namely, a vertical first section, a vertical second section, a vertical third section and a vertical fourth section, from top to bottom along the height direction, and performing steps S1-S8 respectively; wherein, follow the width of the first division section piecemeal and the interlude piecemeal that cut out in vertical first section is 3000mm, follow the width of the first division section piecemeal and the interlude piece that cut out in vertical second section is 1500mm, follow the width of the first division section piecemeal and the interlude piece that cut out in vertical third section and vertical fourth section is 1300 mm.
9. A static cutting demolition method of an underground diaphragm wall clinging to an external wall of an underground structure according to claim 8, characterized in that: and the vertical second section is divided into a section a and a section b from top to bottom along the height direction, and the steps S1-S8 are respectively carried out.
10. A static cutting demolition method of an underground diaphragm wall clinging to an external wall of an underground structure according to claim 1, characterized in that: the diameter of the drilling hole of the diamond water drill is larger than or equal to the diameter of the steel wire rope in the diamond rope saw.
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| CN202110011043.XA CN112832553A (en) | 2021-01-06 | 2021-01-06 | Static cutting and dismantling method for diaphragm wall clinging to outer wall of underground structure |
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| CN202110011043.XA CN112832553A (en) | 2021-01-06 | 2021-01-06 | Static cutting and dismantling method for diaphragm wall clinging to outer wall of underground structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114233046A (en) * | 2021-12-21 | 2022-03-25 | 中交二航局成都城市建设工程有限公司 | Method suitable for dismantling wall between main structure and auxiliary structure of subway station |
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| CN107604941A (en) * | 2017-01-03 | 2018-01-19 | 深圳大学 | A kind of new and old subway station connectivity part diaphragm wall and side wall restructuring bankrupt |
| CN110080301A (en) * | 2019-05-13 | 2019-08-02 | 中铁十二局集团第二工程有限公司 | A kind of construction method that subway station underground continuous wall-enclosure structure punches |
| CN111395799A (en) * | 2020-03-25 | 2020-07-10 | 中国一冶集团有限公司 | Low-disturbance basement communication port outer wall efficient dismantling construction method |
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2021
- 2021-01-06 CN CN202110011043.XA patent/CN112832553A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107604941A (en) * | 2017-01-03 | 2018-01-19 | 深圳大学 | A kind of new and old subway station connectivity part diaphragm wall and side wall restructuring bankrupt |
| CN110080301A (en) * | 2019-05-13 | 2019-08-02 | 中铁十二局集团第二工程有限公司 | A kind of construction method that subway station underground continuous wall-enclosure structure punches |
| CN111395799A (en) * | 2020-03-25 | 2020-07-10 | 中国一冶集团有限公司 | Low-disturbance basement communication port outer wall efficient dismantling construction method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114233046A (en) * | 2021-12-21 | 2022-03-25 | 中交二航局成都城市建设工程有限公司 | Method suitable for dismantling wall between main structure and auxiliary structure of subway station |
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