CN110219658B - Device for preventing shield tunneling machine from head planting and use method thereof - Google Patents
Device for preventing shield tunneling machine from head planting and use method thereof Download PDFInfo
- Publication number
- CN110219658B CN110219658B CN201910675790.6A CN201910675790A CN110219658B CN 110219658 B CN110219658 B CN 110219658B CN 201910675790 A CN201910675790 A CN 201910675790A CN 110219658 B CN110219658 B CN 110219658B
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- Prior art keywords
- shield machine
- shield
- tunnel portal
- machine
- plate
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000000034 method Methods 0.000 title claims abstract description 12
- 230000005641 tunneling Effects 0.000 title claims description 33
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 31
- 239000010959 steel Substances 0.000 claims abstract description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000007789 sealing Methods 0.000 claims description 29
- 238000005452 bending Methods 0.000 claims description 3
- 238000009412 basement excavation Methods 0.000 claims 2
- 238000010276 construction Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 4
- 230000005484 gravity Effects 0.000 description 3
- 238000009435 building construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000009434 installation 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
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention relates to a device for preventing a shield machine from planting heads and a use method thereof, the device is applied to a stage of initial hole entering of the shield machine, a tunnel portal is excavated on a digging surface corresponding to the shield machine, an embedded steel ring is arranged on the inner wall of the tunnel portal, and the device comprises: the support piece is arranged on the inner wall of the bottom of the pre-buried steel ring corresponding to the shield machine, the height of the support piece is smaller than or equal to the difference between the radius of the pre-buried steel ring and the radius of the shield machine, and a downward inclined surface is formed at the position, close to the opening of the tunnel portal, of the support piece; and the water stopping piece is fixed at the opening of the tunnel portal and is attached to the inclined plane, and the originating end of the shield machine enters the tunnel portal by pushing the shield machine into the tunnel portal, so that the bottom of the shield machine is supported by the supporting piece, and the head of the shield machine is prevented from being planted. The invention effectively solves the problem that the shield machine is easy to plant in the initial stage, prevents the shield machine from plant, ensures the construction quality by always positioning the shield machine on the design axis, and has simple structure, easy realization and low cost.
Description
Technical Field
The invention relates to the field of building construction, in particular to a device for preventing a shield machine from head planting and a use method thereof.
Background
In the process of starting a shield tunneling machine, in order to facilitate entry of the shield tunneling machine, the diameter of a common tunnel portal is larger than that of the shield tunneling machine, an starting frame is arranged outside the tunnel portal in order to keep the shield tunneling machine on the design axis of the tunnel portal, the height of the starting frame is adjusted so that the shield tunneling machine arranged on the starting frame can be positioned on the design axis, however, when the diameter of the tunnel portal is larger than that of the shield tunneling machine on the axis, a larger gap is reserved between the side wall of the shield tunneling machine and the inner wall of the tunnel portal, which is about 150mm generally, and after the shield tunneling machine enters the tunnel portal, the phenomenon of head planting of the shield tunneling machine is easy to occur due to gravity center offset and the like.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a device for preventing a shield machine from planting heads and a use method thereof, which solve the problem that the shield machine is easy to plant heads in an initial stage, prevent the shield machine from planting heads, ensure the construction quality by always positioning the shield machine on a design axis, and have the advantages of simple structure, easy realization and low cost.
The technical scheme for achieving the purpose is as follows:
the invention provides a device for preventing a shield machine from planting heads, which is applied to a stage of initial hole entering of a shield machine, a tunnel portal is excavated on a digging surface corresponding to the shield machine, an embedded steel ring is arranged on the inner wall of the tunnel portal, and the device comprises:
the support piece is arranged on the inner wall of the embedded steel ring corresponding to the bottom of the shield machine, the height of the support piece is equal to the difference between the radius of the embedded steel ring and the radius of the shield machine, and a downward inclined surface is formed at the position of the support piece, which is close to the opening of the tunnel portal; and
the water stopping piece is fixed at the opening of the tunnel portal and is attached to the inclined plane, and the originating end of the shield tunneling machine enters the tunnel portal by pushing the shield tunneling machine into the tunnel portal, so that the bottom of the shield tunneling machine is supported by the supporting piece, and the shield tunneling machine is prevented from planting heads.
The invention provides a device for preventing a shield machine from planting heads, which is characterized in that a supporting piece is fixedly arranged on the inner wall of a pre-buried steel ring at a tunnel portal corresponding to the bottom position of the shield machine, and a water stopping piece is further arranged on an inclined surface of the supporting piece, so that the part of the shield machine extending into the tunnel portal can be erected on the supporting piece to prevent the shield machine from planting heads, in addition, the water stopping piece can prevent water in the tunnel portal from flowing outwards, the waterproof effect is achieved, the problem that the shield machine is easy to plant heads in an initial stage is solved, the shield machine is prevented from planting heads, the shield machine is always positioned on a design axis, the construction quality is guaranteed, and the device is simple in structure, easy to realize and low in cost.
The invention relates to a device for preventing a shield machine from planting heads, which is further improved in that the cross section of a supporting piece is I-shaped and comprises a top plate for supporting the shield machine, a bottom plate opposite to the top plate and a supporting plate vertically connected between the top plate and the bottom plate, wherein the bottom plate is fixedly connected with the inner wall of an embedded steel ring.
The invention further improves the device for preventing the shield machine from planting heads, and the end part of the bottom plate, which is close to the inclined surface, is provided with an arc guide angle.
The invention further improves the device for preventing the shield machine from planting heads, wherein the width of the top plate is smaller than that of the bottom plate.
The invention relates to a device for preventing a shield machine from planting heads, which is further improved in that the water stop piece comprises a pressing plate and a sealing plate clamped between the pressing plate and an inclined surface, wherein the pressing plate is fixed on a structure around an opening of a tunnel portal, the pressing plate is bent into the tunnel portal to form a bending part matched with the inclined surface, one side of the sealing plate is attached to the inclined surface, and the other side of the sealing plate is attached to the pressing plate.
The invention further improves the device for preventing the shield machine from planting heads, and the end part of the sealing plate, which is far away from the embedded steel ring, is attached to the top surface of the supporting piece.
The invention further improves the device for preventing the shield machine from planting heads, which is characterized in that the sealing plate is a curtain cloth rubber plate.
The invention further improves the device for preventing the shield machine from planting heads, which is characterized in that the supporting pieces are arranged at intervals along the inner wall of the embedded steel ring.
The invention provides a use method of a device for preventing a shield machine from planting heads, which comprises the following steps:
the device is fixedly arranged on the inner wall of the embedded steel ring corresponding to the bottom of the shield machine, and the originating end of the shield machine enters the tunnel portal by pushing the shield machine into the tunnel portal, so that the bottom of the shield machine is supported by the supporting piece, and the head of the shield machine is prevented from being planted.
Drawings
Fig. 1 is a side view of a device for preventing a shield tunneling machine from planting heads according to the present invention.
FIG. 2 is a side view of a portion of the support of the apparatus of the present invention for preventing a shield machine from planting heads.
Fig. 3 is a front view of a device support part for preventing a head of a shield machine according to the present invention.
Fig. 4 is a schematic view showing the actual installation of the device for preventing the head of the shield tunneling machine according to the present invention.
Fig. 5 is an enlarged schematic view of a portion of the shield tunneling machine head-mounting prevention device according to the present invention.
Detailed Description
The invention will be further described with reference to the drawings and the specific examples.
Referring to fig. 1, the invention provides a device for preventing a shield machine from planting heads and a use method thereof, wherein a supporting piece is fixedly installed on the inner wall of a tunnel portal, corresponding to the bottom position of the shield machine, of an embedded steel ring, and then a water stop piece is arranged on an inclined surface of the supporting piece, so that the part of the shield machine extending into the tunnel portal can be erected on the supporting piece to prevent the shield machine from planting heads, in addition, the water stop piece can prevent water in the tunnel portal from flowing outwards, thereby playing a waterproof role, solving the problem that the shield machine is easy to plant heads in an initial stage, preventing the shield machine from planting heads, enabling the shield machine to be always positioned on a design axis, ensuring construction quality. The device for preventing the shield tunneling machine from planting heads according to the present invention will be described with reference to the accompanying drawings.
Referring to fig. 1, fig. 1 is a side view of a device for preventing a shield tunneling machine from planting heads according to the present invention. The device for preventing the shield tunneling machine from planting head according to the present invention will be described with reference to fig. 1.
As shown in fig. 1, the device for preventing the head of the shield machine from being planted is applied to a stage of initial hole entering of the shield machine 22, a tunnel portal 21 is excavated on a digging surface corresponding to the shield machine 11, an embedded steel ring 211 is installed on the inner wall of the tunnel portal 21, and the device comprises:
the support piece 11 is arranged on the inner wall of the embedded steel ring 211 corresponding to the bottom of the shield machine 22, the height of the support piece 11 is equal to the difference between the radius of the embedded steel ring 211 and the radius of the shield machine 22, and an inclined surface 114 which is inclined downwards is formed at the position of the support piece 11 close to the opening of the tunnel portal 21; and
the water stopping piece fixed at the opening of the tunnel portal 21 is attached to the inclined surface 114, the shield tunneling machine 22 is pushed into the tunnel portal 21, the originating end of the shield tunneling machine 22 enters the tunnel portal 21, the support piece 11 supports the bottom of the shield tunneling machine 22, the shield tunneling machine 22 is prevented from being planted, the inclined surface 114 can prevent the shield tunneling machine 22 from being impacted to the support piece 11 when entering the tunnel portal 21, damage is caused to the support piece 11 and the shield tunneling machine 22, and the shield tunneling machine 22 can smoothly enter the interior of the tunnel portal 21 along the inclined surface 114.
Preferably, as shown in fig. 5, the supporting member 11 is fixed on the inner wall of the pre-buried steel ring 211 by full welding, so that the supporting member 11 is more stably mounted on the inner wall of the pre-buried steel ring 211.
Preferably, the supporting members 11 are disposed at intervals along the inner wall of the pre-buried steel ring 211 to support against the outer side of the shield machine 22 from the side surface, so that the shield machine 22 is more stable.
As a preferred embodiment of the present invention, as shown in fig. 2 and 3, the cross section of the supporting member 11 is in an "i" shape, and includes a top plate 111 for supporting the shield machine 22, a bottom plate 112 opposite to the top plate 111, and a supporting plate 113 vertically connected between the top plate 111 and the bottom plate 112, wherein the bottom plate 112 is fixedly connected to the inner wall of the pre-buried steel ring 211.
Further, the end of the bottom plate 112 near the inclined surface 114 is formed with a rounded corner to prevent the end of the bottom plate 112 near the inclined surface 114 from piercing the water stop, thereby affecting the waterproof effect.
Specifically, the width of the top plate 111 is smaller than that of the bottom plate 112, so that the supporting member 11 can be more stably mounted on the inner wall of the embedded steel ring 211.
As still another preferred embodiment of the present invention, as shown in fig. 1, the water stop member comprises a pressing plate 12 and a sealing plate 121 sandwiched between the pressing plate 12 and the inclined surface 114, wherein the pressing plate 12 is fixed on the structure around the opening of the cavity door 21, and the pressing plate 12 is bent into the cavity door 21 to form a bending portion matching with the inclined surface 114, one side of the sealing plate 121 is attached to the inclined surface 114, and the other side of the sealing plate 121 is attached to the pressing plate 12.
Specifically, the end portion of the sealing plate 121 far away from the embedded steel ring 211 is attached to the top surface of the supporting member 11, so as to enhance the waterproof performance of the sealing plate 121, and make the sealing plate 121 attached to the corresponding position of the supporting member 11.
Preferably, the sealing plate 121 is a curtain rubber plate.
The specific implementation method of the invention is as follows:
supporting pieces 11 are arranged on the inner wall of the embedded steel ring 211 at intervals corresponding to the bottom of the shield machine 22, a sealing plate 121 is arranged on the inclined surface 114 of the supporting piece 11 in a bonding mode, one end of the sealing plate 121 is bonded to the top surface of the top plate 111, and the other end of the sealing plate 121 extends downwards from the bottom plate 112;
the opening of the cavity door 21 is fixed with the pressing plate 12 by using an anchor bolt, and the extension section of the sealing plate 121 is also fixed by the anchor bolt, so that the extension section of the sealing plate 121 is clamped between the pressing plate 12 and the cavity door 21, and the rest of the sealing plate 121 is clamped between the inclined surface 114 and the pressing plate 12;
pushing the shield machine 22 into the tunnel portal 21, so that the originating end of the shield machine 22 enters the tunnel portal 21, the shield machine 22 moves downwards under the influence of self gravity, and the shield machine 22 is erected on the supporting piece 11, and the shield machine 22 is prevented from moving downwards due to the effect of the supporting piece 11, so that the head of the shield machine 22 is prevented from being planted;
in addition, since the inclined surface 114 is formed at the position of the supporting member 11 close to the opening of the tunnel portal 21, if the initial position of the shield machine 22 is low, the bottom of the shield machine 22 contacts the inclined surface 114 first, and then moves obliquely upward along the inclined surface 114 until being placed at the top of the supporting member 11.
The invention also provides a using method of the device for preventing the shield tunneling machine from planting heads, which comprises the following steps:
the device is fixedly arranged on the inner wall of the embedded steel ring 211 corresponding to the bottom of the shield machine 22, and the originating end of the shield machine 22 enters the tunnel portal 21 by pushing the shield machine 22 into the tunnel portal 21, so that the bottom of the shield machine 22 is supported by the supporting piece 11, and the shield machine 22 is prevented from being planted.
With reference to fig. 4, the specific operation mode of the practical implementation of the use method provided by the invention is as follows:
supporting pieces 11 are arranged on the inner wall of the embedded steel ring 211 at intervals corresponding to the bottom of the shield machine 22, a sealing plate 121 is arranged on the inclined surface 114 of the supporting piece 11 in a bonding mode, one end of the sealing plate 121 is bonded to the top surface of the top plate 111, and the other end of the sealing plate 121 extends downwards from the bottom plate 112;
the opening of the cavity door 21 is fixed with the pressing plate 12 by using an anchor bolt, and the extension section of the sealing plate 121 is also fixed by the anchor bolt, so that the extension section of the sealing plate 121 is clamped between the pressing plate 12 and the cavity door 21, and the rest of the sealing plate 121 is clamped between the inclined surface 114 and the pressing plate 12;
pushing the shield machine 22 into the tunnel portal 21, so that the originating end of the shield machine 22 enters the tunnel portal 21, the shield machine 22 moves downwards under the influence of self gravity, and the shield machine 22 is erected on the supporting piece 11, and the shield machine 22 is prevented from moving downwards due to the effect of the supporting piece 11, so that the head of the shield machine 22 is prevented from being planted;
in addition, since the inclined surface 114 is formed at the position of the supporting member 11 close to the opening of the tunnel portal 21, if the initial position of the shield machine 22 is low, the bottom of the shield machine 22 contacts the inclined surface 114 first, and then moves obliquely upward along the inclined surface 114 until being placed at the top of the supporting member 11.
The present invention has been described in detail with reference to the embodiments of the drawings, and those skilled in the art can make various modifications to the invention based on the above description. Accordingly, certain details of the illustrated embodiments are not to be taken as limiting the invention, which is defined by the appended claims.
Claims (6)
1. The utility model provides a prevent shield and construct device of machine and plant head, its characterized in that, the device applies to the shield and constructs the machine and start into the hole stage, the excavation has the portal on the excavation face that the shield constructs the machine corresponds, pre-buried steel ring is installed to the portal inner wall, the device includes:
the support piece is arranged on the inner wall of the embedded steel ring corresponding to the bottom of the shield tunneling machine, the height of the support piece is equal to the difference between the radius of the embedded steel ring and the radius of the shield tunneling machine, and a downward inclined surface is formed at the position, close to the opening of the tunnel portal, of the support piece; and
the water stopping piece is fixed at the opening of the tunnel portal and is attached to the inclined plane, and the starting end of the shield machine enters the tunnel portal by pushing the shield machine into the tunnel portal, so that the bottom of the shield machine is supported by the supporting piece, and the shield machine planting head is prevented; the cross section of the supporting piece is I-shaped and comprises a top plate for supporting the shield machine, a bottom plate opposite to the top plate and a supporting plate vertically connected between the top plate and the bottom plate, and the bottom plate is fixedly connected to the inner wall of the embedded steel ring;
the end part of the bottom plate, which is close to the inclined surface, is provided with an arc guide angle;
the width of the top plate is smaller than that of the bottom plate.
2. The device for preventing a head from being planted on a shield machine according to claim 1, wherein the water stop member comprises a pressing plate and a sealing plate clamped between the pressing plate and the inclined surface, the pressing plate is fixed on a structure around an opening of the tunnel portal, the pressing plate is bent into the tunnel portal to form a bending part matched with the inclined surface, one side of the sealing plate is attached to the inclined surface, and the other side of the sealing plate is attached to the pressing plate.
3. The apparatus for preventing a head of a shield machine according to claim 2, wherein an end of the sealing plate away from the pre-buried steel ring is attached to the top surface of the supporting member.
4. The apparatus for preventing a head of a shield machine from being planted in accordance with claim 2, wherein the sealing plate is a curtain rubber plate.
5. The apparatus for preventing a head of a shield tunneling machine according to claim 1, wherein said supporting members are disposed at intervals along an inner wall of said pre-buried steel ring.
6. A method of using the device for preventing a shield tunneling machine from heading according to claim 1, comprising the steps of:
the device is provided, the device is fixedly arranged on the inner wall of the embedded steel ring corresponding to the bottom of the shield machine, and the initial end of the shield machine enters the tunnel portal by pushing the shield machine into the tunnel portal, so that the bottom of the shield machine is supported by the supporting piece, and the shield machine planting head is prevented.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910675790.6A CN110219658B (en) | 2019-07-25 | 2019-07-25 | Device for preventing shield tunneling machine from head planting and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910675790.6A CN110219658B (en) | 2019-07-25 | 2019-07-25 | Device for preventing shield tunneling machine from head planting and use method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110219658A CN110219658A (en) | 2019-09-10 |
| CN110219658B true CN110219658B (en) | 2024-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910675790.6A Active CN110219658B (en) | 2019-07-25 | 2019-07-25 | Device for preventing shield tunneling machine from head planting and use method thereof |
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| CN (1) | CN110219658B (en) |
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| Publication number | Publication date |
|---|---|
| CN110219658A (en) | 2019-09-10 |
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