CN210087333U - Soft rock tunnel lower step excavation prevents subsiding convergence hydraulic pressure side strutting arrangement - Google Patents
Soft rock tunnel lower step excavation prevents subsiding convergence hydraulic pressure side strutting arrangement Download PDFInfo
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- CN210087333U CN210087333U CN201920858759.1U CN201920858759U CN210087333U CN 210087333 U CN210087333 U CN 210087333U CN 201920858759 U CN201920858759 U CN 201920858759U CN 210087333 U CN210087333 U CN 210087333U
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Abstract
The utility model discloses a soft rock tunnel lower step excavation is prevented subsiding convergence hydraulic pressure side strutting arrangement relates to tunnel construction technical field, and this soft rock tunnel lower step excavation is prevented subsiding convergence hydraulic pressure side strutting arrangement, including tunnel wall body, first backup pad and main tributary strut, the first backup pad of tunnel wall body's bottom fixedly connected with, the bottom of first backup pad is provided with the main tributary strut, the first supporting block of top fixedly connected with of main tributary strut. This soft rock tunnel lower step excavation is prevented subsiding convergence hydraulic pressure side strutting arrangement, through setting up vice support column, the fixed block, the cooperation of second backup pad and foundation is used, make the both sides of tunnel wall body can obtain fine support, through setting up vice support column, make the partly pressure at tunnel top pass to the second backup pad through vice support column, thereby provide the holding power to the tunnel side, the other part pressure at tunnel top then passes to ground through the foundation, the effectual supporting effect of the device to the tunnel both sides that has strengthened.
Description
Technical Field
The utility model relates to a tunnel construction technical field specifically is a convergence hydraulic pressure side strutting arrangement is prevented subsiding by soft rock tunnel lower step excavation.
Background
A great amount of infrastructures such as subways, highways and railways are built in China, a plurality of soft rock tunnels are arranged in the infrastructures, the traditional construction method is that a CRD method or a temporary inverted arch method is adopted for construction, and the problems of high construction cost, multiple working procedures, low working efficiency, overlarge sinking convergence, high construction risk and the like exist, so that a good construction method does not exist at present.
Soft rock tunnel lower step excavation is prevented subsiding convergence hydraulic pressure side strutting arrangement, a structure for inside the tunnel supports the work, but present soft rock tunnel lower step excavation is prevented subsiding convergence hydraulic pressure side strutting arrangement, bearing structure is according to the customization of tunnel size, cause the tunnel exploitation size because the soft degree of soil property is different, it is not enough to cause tunnel strutting arrangement to support the size, make tunnel strutting arrangement of needs refabrication, lead to the construction volume to strengthen, construction speed delays, current strutting arrangement supporting effect is not good enough, it is inconvenient to use, therefore, need improve.
The soft rock tunnel lower step excavation settlement-prevention convergence hydraulic side supporting device disclosed in the Chinese utility model patent application publication No. CN205558932U, though, the telescopic characteristic of a jack is fully utilized to support a cross rod of an upper step steel frame on the bottom of an upper step steel frame of a tunnel, so as to support the upper step steel frame of the tunnel powerfully, limit the movement of the upper step steel frame of the tunnel when the tunnel lower step is excavated, reduce the subsidence and convergence of the tunnel, not only the construction is simple and convenient, the cost is reduced, but also the construction is non-interference and safe, has the advantages of simple process, advanced technology, strong practicability and the like, an inverted arch steel frame is arranged below a supporting member, the inverted arch steel frame is arranged on the bottom surface of the excavated tunnel lower step, so that the contact area with the bottom surface of the tunnel lower step is increased in the supporting process, the sinking of supporting component has been weakened, has played the supporting effect to the tunnel upper step steelframe better, but, this kind of soft rock tunnel lower step excavation is prevented subsiding convergence hydraulic pressure side strutting arrangement, and in the use, it still has fixed effect not good enough, uses shortcoming such as inconvenient.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
Not enough to prior art, the utility model provides a soft rock tunnel lower step excavation is prevented subsiding convergence hydraulic pressure side strutting arrangement has solved the not enough good, inconvenient problem of use of supporting effect.
(II) technical scheme
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:
the utility model provides a soft rock tunnel lower step excavation is prevented subsiding convergence hydraulic pressure side strutting arrangement, includes tunnel wall, first backup pad and main tributary dagger: the bottom of the tunnel wall body is fixedly connected with a first supporting plate, the bottom of the first supporting plate is provided with a main supporting column, and the top of the main supporting column is fixedly connected with a first supporting block;
the bottom of the main supporting column is fixedly connected with a jack, the bottom of the jack is provided with a supporting table, a groove matched with the jack is formed in the supporting table, and the jack is clamped in the groove formed in the supporting table;
one end of the first supporting plate is fixedly connected with an auxiliary supporting column, the top of the auxiliary supporting column is fixedly connected with a second supporting block, the second supporting block and the first supporting plate are both internally provided with a first screw hole, the inner part of the first screw hole is in threaded connection with a first screw, and the auxiliary supporting column is fixedly connected with the first supporting plate through the first screw;
the bottom of the auxiliary support column is fixedly connected with a fixed block, one end, close to the tunnel wall, of the fixed block is fixedly connected with a second support plate, the bottom of the fixed block is fixedly connected with a bottom column, a connecting column is arranged inside the fixed block, holes matched with the connecting column are formed in the auxiliary support column and the bottom column, and the auxiliary support column and the bottom column are movably connected with the connecting column through the holes formed in the auxiliary support column and the bottom column;
the bottom of the bottom column is fixedly connected with a third supporting block, a second screw hole is formed in the third supporting block, a second screw is connected to the inner thread of the second screw hole in a threaded mode, and the third supporting block is fixedly connected with the bottom of the tunnel through the second screw.
Optionally, the first supporting plate and the second supporting plate are arc-shaped plates matched with the tunnel wall body, and the first supporting plate and the second supporting plate are made of alloy materials.
Optionally, the longitudinal section of the supporting platform is trapezoidal, and the cross section of the top of the supporting platform is smaller than the cross section of the bottom of the supporting platform.
Optionally, the number of the auxiliary supporting columns, the number of the fixing blocks, the number of the second supporting plates and the number of the bottom columns are two, and the two auxiliary supporting columns, the number of the fixing blocks, the number of the second supporting plates and the number of the bottom columns are respectively arranged on two sides of the main supporting column.
Optionally, a groove matched with the first supporting block is formed in the first supporting plate, and the first supporting block is clamped with the groove formed in the first supporting plate.
Optionally, the main supporting column, the supporting table, the auxiliary supporting column, the fixing block and the bottom column are made of alloy materials.
(III) advantageous effects
The utility model provides a soft rock tunnel lower step excavation prevents subsiding convergence hydraulic pressure side strutting arrangement possesses following beneficial effect:
(1) the settlement-preventing convergence hydraulic side supporting device for excavation of the soft rock tunnel lower step effectively enhances the stabilizing effect of the first supporting block by arranging the first supporting block to be clamped with the groove arranged in the first supporting plate, effectively avoids the situation that the first supporting block is displaced due to overlarge bearing capacity of the device in the using process of the device, thereby causing danger, and enhances the supporting effect slightly by arranging the first supporting plate and the second supporting plate to be arc-shaped plates matched with the tunnel wall body, so that the first supporting plate and the second supporting plate can be well attached to the tunnel wall body, and secondly, the longitudinal section of the supporting table is trapezoidal, the transverse section of the top of the supporting table is smaller than that of the bottom of the supporting table, thereby facilitating the dispersion of force, and the supporting table disperses the pressure from the top of the tunnel to the ground surface of the bottom of the tunnel so as to be transmitted to the ground of the bottom of the tunnel, the supporting effect of the device is effectively enhanced.
(2) This soft rock tunnel lower step excavation prevents subsiding convergence hydraulic pressure side strutting arrangement, on the one hand through setting up vice support column, the fixed block, the cooperation of second backup pad and foundation column is used, can make the both sides of tunnel wall obtain fine support, through setting up vice support column, make the partial pressure at tunnel top pass to the second backup pad through vice support column, thereby provide the holding power to the tunnel side, the other partial pressure at tunnel top then passes to ground through the foundation column, the effectual strutting effect of the device to the tunnel both sides that has strengthened, the more general metal of on the other hand alloy material has bigger hardness and stronger toughness, through adopting the alloy material, make the device durable, be difficult for being damaged, the effectual life who strengthens the device.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1 according to the present invention;
fig. 3 is a schematic structural diagram of the fixing block of the present invention.
In the figure: 1-tunnel wall, 2-first supporting plate, 3-main supporting column, 4-first supporting block, 5-jack, 6-supporting table, 7-auxiliary supporting column, 8-second supporting block, 9-first screw, 10-fixing block, 11-connecting column, 12-second supporting plate, 13-bottom column, 14-third supporting block and 15-second screw.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "disposed," "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; may be a mechanical connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
Referring to fig. 1-3, the present invention provides a technical solution:
a settlement-preventing convergence hydraulic side supporting device for soft rock tunnel lower step excavation comprises a tunnel wall body 1, a first supporting plate 2 and a main supporting column 3, wherein the first supporting plate 2 is fixedly connected to the bottom of the tunnel wall body 1, the main supporting column 3 is arranged at the bottom of the first supporting plate 2, and a first supporting block 4 is fixedly connected to the top of the main supporting column 3;
a jack 5 is fixedly connected to the bottom of the main support column 3, a support table 6 is arranged at the bottom of the jack 5, a groove matched with the jack 5 is formed in the support table 6, and the jack 5 is clamped in the groove formed in the support table 6;
one end of the first supporting plate 2 is fixedly connected with an auxiliary supporting column 7, the top of the auxiliary supporting column 7 is fixedly connected with a second supporting block 8, first screw holes are formed in the second supporting block 8 and the first supporting plate 2, first screws 9 are connected to the inner threads of the first screw holes, and the auxiliary supporting column 7 is fixedly connected with the first supporting plate 2 through the first screws 9;
the bottom of the auxiliary support column 7 is fixedly connected with a fixed block 10, one end, close to the tunnel wall 1, of the fixed block 10 is fixedly connected with a second support plate 12, the bottom of the fixed block 10 is fixedly connected with a bottom column 13, a connecting column 11 is arranged inside the fixed block 10, holes matched with the connecting column 11 are formed in the auxiliary support column 7 and the bottom column 13, and the auxiliary support column 7 and the bottom column 13 are movably connected with the connecting column 11 through the holes formed in the auxiliary support column 7 and the bottom column 13;
the bottom of the bottom column 13 is fixedly connected with a third supporting block 14, a second screw hole is formed in the third supporting block 14, a second screw 15 is connected to the inner thread of the second screw hole, and the third supporting block 14 is fixedly connected with the bottom of the tunnel through the second screw 15.
As an optional technical solution of the utility model:
As an optional technical solution of the utility model:
the vertical section of brace table 6 is trapezoidal, and the horizontal section at brace table 6 top is less than the horizontal section of bottom, and vertical section through setting up brace table 6 is trapezoidal, and the horizontal section at brace table 6 top is less than the horizontal section of bottom, makes it be favorable to the dispersion of power, makes brace table 6 will come from the pressure dispersion at tunnel top in the bottom that disperses in brace table 6 so that reach the ground of tunnel bottom, the effectual supporting effect who strengthens the device.
As an optional technical solution of the utility model:
As an optional technical solution of the utility model:
the recess with 4 looks adaptations of first backup pad is seted up to the inside of first backup pad 2, the recess joint of seting up inside first backup pad 4 and first backup pad 2, through setting up the recess joint of seting up inside first backup pad 4 and first backup pad 2, the effectual stable effect of first backup pad 4 that has strengthened, the effectual in-process of having avoided using at the device, the device bearing capacity is too big and makes first backup pad 4 appear the displacement to cause dangerous condition to take place.
As an optional technical solution of the utility model:
When in use, the device is arranged in the tunnel, the first supporting plate 4 is arranged at the top of the tunnel wall 1 and can be fixedly connected with the tunnel wall 1 through other tools such as screws and the like, then the main supporting column 3, the jack 5 and the supporting table 6 are matched for use to support the main supporting column, then the two auxiliary supporting columns 7, the fixed block 10, the second supporting plate 12 and the bottom column 13 are respectively arranged at two sides of the tunnel wall 1, and the auxiliary supporting columns 7 are fixedly connected with the first supporting plate 2.
In conclusion, this soft rock tunnel lower step excavation prevents subsiding convergence hydraulic pressure side strutting arrangement, during the use on the one hand through setting up the recess joint that first supporting block 4 and first backup pad 2 are inside to be seted up, the effectual stable effect that strengthens first supporting block 4, the effectual in-process of having avoided using at the device, the device bearing capacity is too big and make first supporting block 4 appear the displacement, thereby cause dangerous condition to take place, on the other hand is through setting up first backup pad 2 and second backup pad 12 and being the arc with tunnel wall 1 looks adaptation, make first backup pad 2 and second backup pad 12 all can be in the fine laminating of wanting of tunnel wall 1, have little reinforcing its supporting effect, secondly through the vertical section that sets up brace table 6 be trapezoidal, and the transverse section at brace table 6 top is less than the transverse section at bottom, make it be favorable to the dispersion of power, make brace table 6 with come from the pressure dispersion in tunnel top in the bottom that disperses in brace table 6 so that pass to reach to the bottom of brace table 6 The ground of tunnel bottom, the effectual supporting effect that has strengthened the device, on the one hand through setting up vice support column 7, fixed block 10, the cooperation of second backup pad 12 and foundation 13 is used, can make tunnel wall 1's both sides obtain fine support, through setting up vice support column 7, make the partial pressure at tunnel top pass to second backup pad 12 through vice support column 7, thereby provide the holding power to the tunnel side, the other partial pressure at tunnel top passes to ground through foundation 13, the effectual supporting effect that has strengthened the device to the tunnel both sides, on the other hand alloy material has bigger hardness and stronger toughness than general metal, through adopting alloy material, make the device durable, difficult quilt damages, the effectual life who has strengthened the device, the device has good supporting effect, and convenient to use, Is convenient to install and disassemble and has certain practicability.
It is noted that in the present disclosure, unless otherwise explicitly specified or limited, a first feature "on" or "under" a second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. The utility model provides a soft rock tunnel lower step excavation is prevented subsiding and is converged hydraulic pressure side strutting arrangement, includes tunnel wall (1), first backup pad (2) and main tributary dagger (3), its characterized in that:
the bottom of the tunnel wall body (1) is fixedly connected with a first supporting plate (2), the bottom of the first supporting plate (2) is provided with a main supporting column (3), and the top of the main supporting column (3) is fixedly connected with a first supporting block (4);
a jack (5) is fixedly connected to the bottom of the main supporting column (3), a supporting table (6) is arranged at the bottom of the jack (5), a groove matched with the jack (5) is formed in the supporting table (6), and the jack (5) is clamped in the groove formed in the supporting table (6);
one end of the first supporting plate (2) is fixedly connected with an auxiliary supporting column (7), the top of the auxiliary supporting column (7) is fixedly connected with a second supporting block (8), the second supporting block (8) and the first supporting plate (2) are both internally provided with first screw holes, the internal threads of the first screw holes are connected with first screws (9), and the auxiliary supporting column (7) is fixedly connected with the first supporting plate (2) through the first screws (9);
the bottom of the auxiliary supporting column (7) is fixedly connected with a fixing block (10), one end, close to the tunnel wall body (1), of the fixing block (10) is fixedly connected with a second supporting plate (12), the bottom of the fixing block (10) is fixedly connected with a bottom column (13), a connecting column (11) is arranged inside the fixing block (10), holes matched with the connecting column (11) are formed in the auxiliary supporting column (7) and the bottom column (13), and the auxiliary supporting column (7) and the bottom column (13) are movably connected with the connecting column (11) through the holes formed in the auxiliary supporting column (7) and the bottom column (13);
the bottom fixedly connected with third supporting shoe (14) of foundation (13), the second screw hole has been seted up to the inside of third supporting shoe (14), the inside threaded connection of second screw hole has second screw (15), third supporting shoe (14) are through second screw (15) and tunnel bottom fixed connection.
2. The soft rock tunnel lower step excavation settlement-prevention convergence hydraulic side support device of claim 1,
first backup pad (2) and second backup pad (12) are the arc with tunnel wall (1) looks adaptation, just first backup pad (2) and second backup pad (12) are the alloy material.
3. The soft rock tunnel lower step excavation settlement-prevention convergence hydraulic side support device of claim 1,
the longitudinal section of the supporting platform (6) is trapezoidal, and the cross section of the top of the supporting platform (6) is smaller than that of the bottom.
4. The soft rock tunnel lower step excavation settlement-prevention convergence hydraulic side support device of claim 1,
the number of the auxiliary supporting columns (7), the number of the fixing blocks (10), the number of the second supporting plates (12) and the number of the bottom columns (13) are two, and the two auxiliary supporting columns (7), the number of the fixing blocks (10), the number of the second supporting plates (12) and the number of the bottom columns (13) are respectively arranged on two sides of the main supporting column (3).
5. The soft rock tunnel lower step excavation settlement-prevention convergence hydraulic side support device of claim 1,
the groove matched with the first supporting block (4) is formed in the first supporting plate (2), and the first supporting block (4) is connected with the groove formed in the first supporting plate (2) in a clamped mode.
6. The soft rock tunnel lower step excavation settlement-prevention convergence hydraulic side support device of claim 1,
the main supporting column (3), the supporting table (6), the auxiliary supporting column (7), the fixing block (10) and the bottom column (13) are all made of alloy materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920858759.1U CN210087333U (en) | 2019-06-10 | 2019-06-10 | Soft rock tunnel lower step excavation prevents subsiding convergence hydraulic pressure side strutting arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920858759.1U CN210087333U (en) | 2019-06-10 | 2019-06-10 | Soft rock tunnel lower step excavation prevents subsiding convergence hydraulic pressure side strutting arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210087333U true CN210087333U (en) | 2020-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920858759.1U Expired - Fee Related CN210087333U (en) | 2019-06-10 | 2019-06-10 | Soft rock tunnel lower step excavation prevents subsiding convergence hydraulic pressure side strutting arrangement |
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| Country | Link |
|---|---|
| CN (1) | CN210087333U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111561330A (en) * | 2020-04-30 | 2020-08-21 | 罗波 | Highway bridge and culvert supporting structure for bridge engineering |
| CN112483159A (en) * | 2020-11-19 | 2021-03-12 | 河北建筑工程学院 | Temporary supporting device for vehicle-mounted large-span tunnel |
| CN113431607A (en) * | 2021-07-19 | 2021-09-24 | 中交第二航务工程局有限公司 | Weak surrounding rock tunnel arch foot top support pressurization sinking control method |
| CN113700515A (en) * | 2021-07-19 | 2021-11-26 | 中铁十六局集团第三工程有限公司 | Method, device and equipment for using super-large cross-tunnel support and readable storage medium |
-
2019
- 2019-06-10 CN CN201920858759.1U patent/CN210087333U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111561330A (en) * | 2020-04-30 | 2020-08-21 | 罗波 | Highway bridge and culvert supporting structure for bridge engineering |
| CN111561330B (en) * | 2020-04-30 | 2022-02-08 | 罗波 | Highway bridge and culvert supporting structure for bridge engineering |
| CN112483159A (en) * | 2020-11-19 | 2021-03-12 | 河北建筑工程学院 | Temporary supporting device for vehicle-mounted large-span tunnel |
| CN113431607A (en) * | 2021-07-19 | 2021-09-24 | 中交第二航务工程局有限公司 | Weak surrounding rock tunnel arch foot top support pressurization sinking control method |
| CN113700515A (en) * | 2021-07-19 | 2021-11-26 | 中铁十六局集团第三工程有限公司 | Method, device and equipment for using super-large cross-tunnel support and readable storage medium |
| CN113431607B (en) * | 2021-07-19 | 2023-04-25 | 中交第二航务工程局有限公司 | Method for controlling arch foot jacking pressure sinking of weak surrounding rock tunnel |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200218 Termination date: 20200610 |