CN113250185A - Underground continuous wall structure suitable for strong leakage stratum - Google Patents
Underground continuous wall structure suitable for strong leakage stratum Download PDFInfo
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- CN113250185A CN113250185A CN202110699111.6A CN202110699111A CN113250185A CN 113250185 A CN113250185 A CN 113250185A CN 202110699111 A CN202110699111 A CN 202110699111A CN 113250185 A CN113250185 A CN 113250185A
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- 230000002787 reinforcement Effects 0.000 claims abstract description 27
- 230000006978 adaptation Effects 0.000 claims 1
- 230000008901 benefit Effects 0.000 description 6
- 238000010276 construction Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 238000005553 drilling Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/18—Bulkheads or similar walls made solely of concrete in situ
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- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
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Abstract
The invention discloses an underground continuous wall structure suitable for a strong leakage stratum, which comprises a connecting joint, wherein the connecting joint comprises a pipe column, a first shaft sleeve, a second shaft sleeve, a first connecting piece and a second connecting piece; an annular flange is arranged on the side wall of the axial center of the pipe column along the circumferential direction; the first shaft sleeve is rotatably sleeved on the upper section of the pipe column, and the second shaft sleeve is rotatably sleeved on the lower section of the pipe column; one end of the first connecting piece is connected with the first shaft sleeve, the other end of the first connecting piece is used for being connected with the end part of the first reinforcement cage, one end of the second connecting piece is connected with the second shaft sleeve, and the other end of the second connecting piece is connected with the end part of the second reinforcement cage; after the first shaft sleeve and the second shaft sleeve rotate relative to the tubular column to a set angle, the top end of the second shaft sleeve is rigidly connected with the annular flange, and the bottom end of the first shaft sleeve is rigidly connected with the annular flange. The connecting joint provided by the invention has a simple structure and an adjustable angle, and is suitable for connecting and fixing the reinforcement cages at two ends with different included angle trends.
Description
Technical Field
The invention relates to the technical field of buildings, in particular to an underground continuous wall structure suitable for a strong leakage stratum.
Background
The underground continuous wall is a continuous underground wall body with functions of seepage prevention, soil retaining and bearing, which is formed by digging a narrow and deep groove in the ground by using a trenching machine and using a slurry retaining wall and constructing appropriate materials such as reinforced concrete and the like in the groove.
The underground continuous wall is mainly used for subway construction in cities in the past, and is less applied to urban river channels, but along with more and more urban river channel treatment projects, the underground continuous wall is more and more appeared in the construction of urban river channel treatment. The geological conditions in the current urban river are complex, and the construction of the underground diaphragm wall is not affected. In the construction process of the underground continuous wall, the connection structure of the two sections of reinforcement cages relates to the construction quality and the construction progress of the integrity, the continuity and the like of the underground continuous wall.
Disclosure of Invention
Based on the technical background, the invention provides the underground continuous wall structure which solves the problems and is suitable for the high-leakage stratum, the structure is simple, the underground continuous wall structure is suitable for connecting reinforcement cages at different angles, and the stability is good.
The invention is realized by the following technical scheme:
the underground continuous wall structure suitable for the high-leakage stratum comprises a connecting joint, wherein the connecting joint comprises a pipe column, a first shaft sleeve, a second shaft sleeve, a first connecting piece and a second connecting piece; an annular flange is arranged on the side wall of the axial center of the pipe column along the circumferential direction; the first shaft sleeve is rotatably sleeved on the upper section of the pipe column, and the second shaft sleeve is rotatably sleeved on the lower section of the pipe column; one end of the first connecting piece is connected with the first shaft sleeve, the other end of the first connecting piece is used for being connected with the end part of the first reinforcement cage, one end of the second connecting piece is connected with the second shaft sleeve, and the other end of the second connecting piece is connected with the end part of the second reinforcement cage; after the first shaft sleeve and the second shaft sleeve rotate relative to the tubular column to a set angle, the top end of the second shaft sleeve is rigidly connected with the annular flange, and the bottom end of the first shaft sleeve is rigidly connected with the annular flange.
The invention provides an underground continuous wall structure suitable for a high-leakage stratum, and mainly aims to protect a connecting joint of two sections of reinforcement cages. The specific working principle is as follows: respectively sleeving a first shaft sleeve and a second shaft sleeve on an upper pipe section and a lower pipe section of a pipe column, installing a first connecting piece on the first shaft sleeve, installing a second connecting piece on the second shaft sleeve, and rotating the first shaft sleeve and the second shaft sleeve to adjust an included angle between the line A and the line B to accord with the size of the included angle between a first reinforcement cage and a second reinforcement cage by taking a connecting line of the first connecting piece and the circle center of the pipe column as an A line and a connecting line of the second connecting piece and the circle center of the pipe column as a B line in the overlooking direction; then fixing the first shaft sleeve and the annular flange, fixing the second shaft sleeve and the annular flange, and limiting the first shaft sleeve and the second shaft sleeve to further rotate relative to the tubular column; and finally, connecting the free end of the first connecting piece with the end part of the first reinforcement cage, and connecting the free end of the second connecting piece with the end part of the second reinforcement cage. Firstly, the first shaft sleeve and the second shaft sleeve can rotate 360 degrees relative to the pipe column, so that the connecting device is suitable for connecting two sections of reinforcement cages at any angle, and is simple in structure, flexible and practical; secondly, set up annular flange at the axial central part of tubular column and play the effect that the structure was strengthened, and first axle sleeve and second axle sleeve mainly play the effect of transmission moment of torsion through tubular column central part and the annular flange that central part corresponds, do benefit to and improve overall structure stability.
Preferably, the annular flange comprises a first flange, a second flange and a third flange from top to bottom in sequence, and the first flange and the third flange have the same structure and are symmetrically arranged by taking the second flange as a reference; the outer diameters of the first flange and the third flange are smaller than the outer diameter of the second flange, and the outer diameter of the second flange is the same as the outer diameters of the first shaft sleeve and the second shaft sleeve; the bottom end face of the first shaft sleeve is coaxially provided with a step hole, the step hole is sleeved on the first flange, the top end face of the second shaft sleeve is coaxially provided with a step hole, and the step hole is sleeved on the third flange.
According to the invention, the first shaft sleeve is sleeved with the first flange, and the second shaft sleeve is sleeved with the third flange, so that the contact area of the first shaft sleeve, the second shaft sleeve and the annular flange is increased, and the structural stability is improved;
further preferably, the first sleeve is rigidly connected to the first flange by a bolt or a key, and the second sleeve is rigidly connected to the third flange by a bolt or a key.
Preferably, the first connecting piece and the second connecting piece have the same structure and respectively comprise a U-shaped plate, and each U-shaped plate comprises two wing plates and a bottom plate positioned between the two wing plates; a first clamping plate and a second clamping plate are arranged on the outer plate surface of the bottom plate, and a clamping groove between the first clamping plate and the second clamping plate is used as a female head; the side wall of the first shaft sleeve is provided with a bulge serving as a male head, and the male head is mutually clamped and matched with the female head of the first connecting piece; the lateral wall of the second shaft sleeve is provided with a protrusion serving as a male head, and the male head is in clamping fit with the female head of the second connecting piece.
The first connecting piece and the first shaft sleeve are connected in a clamping and matching mode through a structure similar to a male-female tenon in principle, and the second connecting piece and the second shaft sleeve are matched in a clamping and matching mode through a structure similar to a male-female tenon in principle, so that the structure is simple and the installation is convenient.
Preferably, the long axis direction of the first clamping plate and the second clamping plate is perpendicular to the connecting line between the two wing plates of the U-shaped plate, and the lengths of the first clamping plate and the second clamping plate are the same as the length of the bottom plate; the upper sections of the first clamping plate and the second clamping plate on the first connecting piece are matched with the male head of the first shaft sleeve, and the lower sections of the first clamping plate and the second clamping plate are in contact with the outer wall of the second shaft sleeve; the lower sections of the first clamping plate and the second clamping plate on the second connecting piece are matched with the male head of the second shaft sleeve, and the upper sections of the first clamping plate and the second clamping plate are in contact with the outer wall of the second shaft sleeve.
Through this structural optimization design for the U template all has the impetus in whole vertical direction, ensures overall structure connection stability.
Further preferably, the free ends of the first clamping plate and the second clamping plate, which are deviated from the direction of the bottom plate, are of convex arc structures.
The invention has the following advantages and beneficial effects:
the first shaft sleeve and the second shaft sleeve can rotate 360 degrees relative to the pipe column, can be suitable for connecting two sections of reinforcement cages at any angle, and is simple in structure, flexible and practical; secondly, set up annular flange at the axial central part of tubular column and play the effect that the structure was strengthened, and first axle sleeve and second axle sleeve mainly play the effect of transmission moment of torsion through tubular column central part and the annular flange that central part corresponds, do benefit to and improve overall structure stability.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
FIG. 1 is a schematic top view of the adapter and reinforcement cage of the present invention;
FIG. 2 is a schematic top view of the connection fitting of the present invention;
FIG. 3 is a schematic axial cross-sectional view of the connection fitting of the present invention;
FIG. 4 is an exploded view of the first sleeve, second sleeve and tubular string assembly of the present invention;
FIG. 5 is a schematic view of the present invention in the form of a tubular string;
FIG. 6 is a perspective view of a first connecting member according to the present invention; the first connecting piece and the second connecting piece have the same structure, and the first connecting piece is illustrated in the attached drawing as an example;
FIG. 7 is a schematic top view of a first connecting member according to the present invention; the first connecting piece and the second connecting piece are the same in structure, and the first connecting piece is illustrated in the attached drawing for example.
Reference numbers and corresponding part names in the drawings: the steel bar reinforcement cage comprises a pipe column 1, a first shaft sleeve 2, a second shaft sleeve 3, a first connecting piece 4, a second connecting piece 5, an annular flange 6, a first flange 61, a second flange 62, a third flange 63, a 7-U-shaped plate 8, a first clamping plate 9, a second clamping plate 10, a female head 11, a male head 12 and a steel bar cage 12.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.
Example 1
The embodiment provides an underground continuous wall structure suitable for a strong leakage stratum, which comprises a connecting joint as shown in figures 1-3, wherein the connecting joint comprises a pipe column 1, a first shaft sleeve 2, a second shaft sleeve 3, a first connecting piece 4 and a second connecting piece 5; the first shaft sleeve 2 and the second shaft sleeve 3 are identical in size and structure, the first connecting piece 4 and the second connecting piece 5 are identical in size and structure, and the tubular column 1 is of a circular tube structure.
An annular flange 6 is arranged on the side wall of the axial center of the pipe column 1 along the circumferential direction, and the annular flange 6 and the pipe column 1 are integrally formed and processed. The first shaft sleeve 2 is rotatably sleeved on the upper section of the pipe column 1 (namely, the pipe section of the pipe column 1 above the upper end surface of the annular flange 6), and the second shaft sleeve 3 is rotatably sleeved on the lower section of the pipe column 1 (namely, the pipe section of the pipe column 1 below the lower end surface of the annular flange 6). The four axial lines of the pipe column 1, the annular flange 6, the first shaft sleeve 2 and the second shaft sleeve 3 are superposed, the first shaft sleeve 2 can rotate by taking the pipe column 1 as a rotating shaft, and the second shaft sleeve 3 can rotate by taking the pipe column 1 as a rotating shaft. One end of a first connecting piece 4 is connected with the first shaft sleeve 2, the other end of the first connecting piece is used for being connected with the end part of the first reinforcement cage, one end of a second connecting piece 5 is connected with the second shaft sleeve 3, and the other end of the second connecting piece is connected with the end part of the second reinforcement cage; after the first shaft sleeve 2 and the second shaft sleeve 3 rotate relative to the pipe column 1 to a set angle, the top end of the second shaft sleeve 3 is rigidly connected with the annular flange 6, and the bottom end of the first shaft sleeve 2 is rigidly connected with the annular flange 6.
The utility model provides a pair of underground continuous wall structure suitable for high leakage stratum, main aim at protect the attach fitting of two sections steel reinforcement cages, this attach fitting simple structure, angularly adjustable, connection structure are firm, are applicable to the connection of the both ends steel reinforcement cage that has different contained angles and move towards and fix. The specific working principle is as follows: respectively sleeving a first shaft sleeve 2 and a second shaft sleeve 3 on an upper pipe section and a lower pipe section of a pipe column 1, installing a first connecting piece 4 on the first shaft sleeve 2, installing a second connecting piece 5 on the second shaft sleeve 2, and rotating the first shaft sleeve 2 and the second shaft sleeve 3 to adjust an included angle between the line A and the line B to accord with the size of the included angle between a first reinforcement cage and a second reinforcement cage by taking a connecting line of the first connecting piece 4 and the circle center of the pipe column 1 as the line A and a connecting line of the second connecting piece 5 and the circle center of the pipe column 1 as the line B in the overlooking direction; then fixing the first shaft sleeve 2 with the annular flange 6, and fixing the second shaft sleeve 3 with the annular flange 6, and limiting the first shaft sleeve 2 and the second shaft sleeve 3 to further rotate relative to the pipe column 1; finally, the free end of the first connector 4 is connected to the end of the first reinforcement cage and the free end of the second connector 5 is connected to the end of the second reinforcement cage. Firstly, in the case, the first shaft sleeve 2 and the second shaft sleeve 3 can rotate 360 degrees relative to the pipe column, so that the connection device can be suitable for connecting two sections of reinforcement cages at any angle, and is simple in structure, flexible and practical; secondly, set up annular flange 6 and play the effect that the structure was strengthened at the axial central part of tubular column 1, and first axle sleeve 2 and second axle sleeve 3 mainly play the effect of transmission moment of torsion through tubular column 1 central part and the annular flange 6 that central part corresponds, do benefit to and improve overall structure stability.
Example 2
In addition to the improvement of embodiment 1, as shown in fig. 4 and 5, the annular flange 6 sequentially includes a first flange 61, a second flange 62 and a third flange 63 from top to bottom, the first flange 61 and the third flange 63 have the same structure and are symmetrically arranged with the second flange 62 as a reference; the outer diameters of the first flange 61 and the third flange 63 are smaller than the outer diameter of the second flange 62, and the outer diameter of the second flange 62 is the same as the outer diameters of the first sleeve 2 and the second sleeve 3; the bottom end face of the first shaft sleeve 2 is coaxially provided with a step hole, the step hole is sleeved on the first flange 61, the top end face of the second shaft sleeve 3 is coaxially provided with a step hole, and the step hole is sleeved on the third flange 63. The first hub 2 is rigidly connected to the first flange 61 by bolts or keys, and the second hub 3 is rigidly connected to the third flange 63 by bolts or keys.
The first shaft sleeve 2 is sleeved with the first flange 61, and the second shaft sleeve 3 is sleeved with the third flange 63, so that the contact area of the first shaft sleeve 2, the second shaft sleeve 3 and the annular flange 6 is increased, and the structural stability is improved; finally, the first flange 61 is fixedly connected with the first shaft sleeve 2 after penetrating the side wall of the first shaft sleeve in the radial direction by using a drilling bolt, and the third flange 63 is fixedly connected with the second shaft sleeve 3 after penetrating the side wall of the second shaft sleeve in the radial direction by using a drilling bolt.
Example 3
According to a further improvement of embodiment 2, as shown in fig. 6 and 7, the first connecting member 4 and the second connecting member 5 are identical in structure and each comprise a U-shaped plate 7, and the U-shaped plate 7 comprises two wing plates and a bottom plate located between the two wing plates. Be equipped with first cardboard 8 and second cardboard 9 on the planking face of bottom plate, first cardboard 8 and second cardboard 9 all adopt the square structure of rectangular shape. A clamping groove between the first clamping plate 8 and the second clamping plate 9 is used as a female head 10; the side wall of the first shaft sleeve 2 is provided with a bulge serving as a male head 11, and the male head 11 is mutually clamped and matched with the female head 10 of the first connecting piece 4; the lateral wall of the second shaft sleeve 3 is provided with a bulge as a male head 11, and the male head 11 is in mutual clamping fit with the female head 10 of the second connecting piece 5.
The first connecting piece 4 and the first shaft sleeve 2 are connected in a clamping and matching mode through a structure similar to a male-female tenon in principle, and the second connecting piece 5 and the second shaft sleeve 3 are matched in a clamping and matching mode through a structure similar to a male-female tenon in principle, so that the structure is simple, and the installation is convenient.
In the overlooking direction, the long axis direction of the first clamping plate 8 and the second clamping plate 9 is vertical to the connecting line between the two wing plates of the U-shaped plate 7, and the lengths of the first clamping plate 8 and the second clamping plate 9 are the same as the length of the bottom plate where the first clamping plate 8 and the second clamping plate 9 are located; the upper sections of a first clamping plate 8 and a second clamping plate 9 on the first connecting piece 4 are matched with the male head of the first shaft sleeve 2, and the lower sections are contacted with the outer wall of the second shaft sleeve 3; the lower sections of the first clamping plate 8 and the second clamping plate 9 on the second connecting piece 5 are matched with the male head of the second shaft sleeve 3, and the upper sections are contacted with the outer wall of the second shaft sleeve 2.
Through the structural optimization design, the U-shaped plate 7 has force points in the whole vertical direction, and the connection stability of the whole structure is guaranteed.
Finally, the free ends of the first clamping plate 8 and the second clamping plate 9 deviating from the direction of the bottom plate are designed in an optimized mode to be of outwards convex arc-shaped structures, and the contact stability of the first clamping plate 8 and the second clamping plate 9 with the side wall of the first shaft sleeve 2 (or the second shaft sleeve 3) is improved.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (6)
1. The underground continuous wall structure suitable for the high-leakage stratum comprises a connecting joint, and is characterized in that the connecting joint comprises a pipe column (1), a first shaft sleeve (2), a second shaft sleeve (3), a first connecting piece (4) and a second connecting piece (5);
an annular flange (6) is arranged on the side wall of the axial center of the pipe column (1) along the circumferential direction; the first shaft sleeve (2) is rotatably sleeved on the upper section of the pipe column (1), and the second shaft sleeve (3) is rotatably sleeved on the lower section of the pipe column (1);
one end of the first connecting piece (4) is connected with the first shaft sleeve (2), the other end of the first connecting piece is used for being connected with the end part of the first reinforcement cage, one end of the second connecting piece (5) is connected with the second shaft sleeve (3), and the other end of the second connecting piece is connected with the end part of the second reinforcement cage;
after the first shaft sleeve (2) and the second shaft sleeve (3) rotate to a set angle relative to the tubular column (1), the top end of the second shaft sleeve (3) is rigidly connected with the annular flange (6), and the bottom end of the first shaft sleeve (2) is rigidly connected with the annular flange (6).
2. The underground continuous wall structure suitable for the strong leakage stratum according to the claim 1, characterized in that the annular flange (6) comprises a first flange (61), a second flange (62) and a third flange (63) from top to bottom in sequence, the first flange (61) and the third flange (63) are the same in structure and are symmetrically arranged by taking the second flange (62) as a reference; the outer diameters of the first flange (61) and the third flange (63) are smaller than the outer diameter of the second flange (62), and the outer diameter of the second flange (62) is the same as the outer diameters of the first shaft sleeve (2) and the second shaft sleeve (3);
the bottom end face of the first shaft sleeve (2) is coaxially provided with a step hole, the step hole is sleeved on the first flange (61), the top end face of the second shaft sleeve (3) is coaxially provided with a step hole, and the step hole is sleeved on the third flange (63).
3. An underground continuous wall structure suitable for a high leakage stratum according to claim 2, characterized in that the first bushing (2) is rigidly connected with the first flange (61) through bolts or keys, and the second bushing (3) is rigidly connected with the third flange (63) through bolts or keys.
4. An underground continuous wall structure suitable for a high leakage stratum according to any one of claims 1 to 3, wherein the first connecting piece (4) and the second connecting piece (5) are identical in structure and comprise U-shaped plates (7), and the U-shaped plates (7) comprise two wing plates and a bottom plate positioned between the two wing plates; a first clamping plate (8) and a second clamping plate (9) are arranged on the outer plate surface of the bottom plate, and a clamping groove between the first clamping plate (8) and the second clamping plate (9) is used as a female head (10);
the side wall of the first shaft sleeve (2) is provided with a bulge serving as a male head (11), and the male head (11) is mutually clamped and matched with the female head (10) of the first connecting piece (4); be equipped with the arch on the lateral wall of second shaft sleeve (3) as public head (11), public head (11) and female first (10) mutual joint adaptation of second connecting piece (5).
5. The underground continuous wall structure suitable for the high leakage stratum according to claim 4, wherein the long axis direction of the first clamping plate (8) and the second clamping plate (9) is perpendicular to the connecting line between the two wing plates of the U-shaped plate (7), and the length of the first clamping plate (8) and the length of the second clamping plate (9) are the same as the length of the bottom plate;
the upper sections of a first clamping plate (8) and a second clamping plate (9) on the first connecting piece (4) are matched with the male head of the first shaft sleeve (2), and the lower sections are contacted with the outer wall of the second shaft sleeve (3); the lower sections of the first clamping plate (8) and the second clamping plate (9) on the second connecting piece (5) are matched with the male head of the second shaft sleeve (3), and the upper sections are contacted with the outer wall of the second shaft sleeve (2).
6. A diaphragm wall structure suitable for a high leakage stratum according to claim 5, wherein the free ends of the first clamping plate (8) and the second clamping plate (9) which are far away from the bottom plate are of convex arc structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110699111.6A CN113250185A (en) | 2021-06-23 | 2021-06-23 | Underground continuous wall structure suitable for strong leakage stratum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110699111.6A CN113250185A (en) | 2021-06-23 | 2021-06-23 | Underground continuous wall structure suitable for strong leakage stratum |
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| Publication Number | Publication Date |
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| CN113250185A true CN113250185A (en) | 2021-08-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110699111.6A Pending CN113250185A (en) | 2021-06-23 | 2021-06-23 | Underground continuous wall structure suitable for strong leakage stratum |
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Citations (7)
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|---|---|---|---|---|
| JP2006249807A (en) * | 2005-03-11 | 2006-09-21 | Nippon Steel Corp | Steel-made member of corner section of continuous underground wall, continuous underground wall using the same and connection method of steel-made continuous walls in different directions |
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-
2021
- 2021-06-23 CN CN202110699111.6A patent/CN113250185A/en active Pending
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| JP2006249807A (en) * | 2005-03-11 | 2006-09-21 | Nippon Steel Corp | Steel-made member of corner section of continuous underground wall, continuous underground wall using the same and connection method of steel-made continuous walls in different directions |
| CN104048107A (en) * | 2014-07-03 | 2014-09-17 | 季忠贤 | Cable support |
| CN207194033U (en) * | 2017-09-13 | 2018-04-06 | 天津市恒达正泰建筑基础工程有限公司 | The rigid joint structure of lattice diaphram wall |
| CN110644504A (en) * | 2019-10-23 | 2020-01-03 | 北京天兴燃气工程有限公司 | Operation hole supporting device |
| CN211596850U (en) * | 2019-11-14 | 2020-09-29 | 金陵科技学院 | Underground structure connecting device |
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Application publication date: 20210813 |