CN213807670U - Special-shaped steel sleeve for shield machine initiation - Google Patents
Special-shaped steel sleeve for shield machine initiation Download PDFInfo
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- CN213807670U CN213807670U CN202022052361.4U CN202022052361U CN213807670U CN 213807670 U CN213807670 U CN 213807670U CN 202022052361 U CN202022052361 U CN 202022052361U CN 213807670 U CN213807670 U CN 213807670U
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- shield tunneling
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Abstract
The utility model discloses a special-shaped steel sleeve for shield constructs machine is originated, it includes: the cylinder body is of a cylindrical structure with openings at two ends, and is provided with a first end and a second end along the axial direction, wherein the first end is circular, and the second end is oval; the second end is formed by cutting off a part of the cylinder from the outer tangent point of the cylinder along a diagonal line, and the diagonal line and the axial direction of the cylinder form an included angle of 40-50 degrees; the distance between the external tangent point and the end face of the first end is 600-800 mm; and the base is arranged at the bottom of the barrel body and supports the barrel body, the base comprises a first base and a second base, and one end of the second base is wedge-shaped so as to be matched with the second end of the barrel body. A special-shaped steel sleeve for shield constructs machine is originated has characteristics such as practicality is strong, easy and simple to handle, practice thrift the cost, save time, improve work efficiency, effectively ensure constructor's safety.
Description
Technical Field
The utility model relates to a shield constructs quick-witted auxiliary assembly. More specifically, the utility model relates to a special-shaped steel sleeve for shield constructs quick-witted originated.
Background
Subway is a main transportation mode of cities in China, along with rapid development of economy, the scale of a subway network system is rapidly enlarged, and more subway tracks are crossed. In the tunnel construction process, the shield starting blind well can only be arranged at a fixed position under the influence of urban geographic positions and soil layer conditions, and when the shield starting end is the blind well and the station is a three-layer station, the situation that the end reinforcement condition is not met on site can be met. Especially, when a tunnel portal and a main tunnel form a certain included angle, if a conventional shield initial construction method is adopted, a cutter head of a shield machine directly cuts the underground continuous wall, one side of the cutter head starts to cut soil, the other side of the cutter head does not cut the soil, the soil is unevenly stressed, and when water gushes and sand gushes on the back of the soil, the rubber curtain cloth cannot play a role in sealing.
SUMMERY OF THE UTILITY MODEL
It is an object of the present invention to solve at least the above problems and to provide at least the advantages which will be described later.
The utility model discloses it is still another purpose to provide a special-shaped steel sleeve for shield constructs quick-witted originated, it can be adjusted translation cross access and circuit skew face into the perpendicular, the inside packing of steel ring. The shield cutter head part enters into an extension steel ring, and a waterproof curtain cloth and a turning plate are arranged at the opening of the steel ring to form a sealing state with the shield shell. Effectively solving the risk of gushing water and sand caused by the conventional shield launching and ensuring the safety of construction.
To achieve these objects and other advantages in accordance with the purpose of the invention, there is provided a special-shaped steel sleeve for shield machine origination, comprising:
the cylinder body is of a cylindrical structure with openings at two ends, and is provided with a first end and a second end along the axial direction, wherein the first end is circular, and the second end is oval; the second end is formed by cutting off a part of the cylinder from the outer tangent point of the cylinder along a diagonal line, and the diagonal line and the axial direction of the cylinder form an included angle of 40-50 degrees; the distance between the external tangent point and the end face of the first end is 600-800 mm;
and the base is arranged at the bottom of the barrel body and supports the barrel body, the base comprises a first base and a second base, and one end of the second base is wedge-shaped so as to be matched with the second end of the barrel body.
Preferably, in the excavation direction of the shield tunneling machine, the cylinder includes:
the width of the upstream cylinder is 2600-;
a middle cylinder with a width of 2600 and 2800mm, wherein the edge of the circumferential wall of the middle cylinder overlaps the oblique cutting line;
and a downstream cylinder having a width of 2700-.
Preferably, the first chassis includes: the first bottom plate is long-strip-shaped and laid parallel to the ground, and the length direction of the first bottom plate is perpendicular to the axial direction of the upstream cylinder;
the four first bearing plates extend along the length direction of the first base plate, are welded on the first base plate at intervals and vertically, and the upper edge of each first bearing plate is connected with the outer side wall of the upstream cylinder;
and two first weight loading boxes are arranged at two ends of the first base respectively, and a multilayer rib plate and at least one jack are arranged in each first weight loading box.
Preferably, the second chassis includes: the second bottom plate is in a strip shape, the length direction of the second bottom plate is perpendicular to the axial direction of the middle cylinder, and the first end of the second bottom plate is matched with the edge cut-off part of the middle cylinder;
the four second bearing plates extend along the length direction of the second bottom plate, are welded on the second bottom plate at intervals and vertically, and the upper edge of each second bearing plate is connected with the outer side wall of the upstream cylinder;
and the second hoisting box is one and is arranged at the second end of the second base, and a multilayer rib plate and at least one jack are arranged in the second hoisting box.
Preferably, the special-shaped steel sleeve for shield machine initiation further comprises: three filling holes are formed in the top of the upstream cylinder, the top of the middle cylinder and the top of the downstream cylinder respectively; the filling hole is circular, and the hole diameter is 720-920 mm.
Preferably, a circular cover plate is further arranged on the filling hole.
Preferably, the upstream cylinder and the middle cylinder are respectively composed of an upper semicircle and a lower semicircle.
Preferably, the upstream cylinder, the middle cylinder and the downstream cylinder are all welded and connected through arc-shaped plates, and welding seams are fully welded along the inner side and the outer side of the whole circumference of the circumferential wall of the cylinder.
Preferably, 2 parallel steel rails are installed on the bottom surface of the inner wall of the cylinder, 7-shaped plates are welded on two sides of each steel rail, and the height of the steel rail close to the first end is 20 mm.
Preferably, the first end of the cylinder is further provided with a water stop curtain and a turning plate.
The utility model discloses at least, include following beneficial effect: a special-shaped steel sleeve for shield structure machine is originated has solved the conventional shield and has constructed the risk of gushing water and gushing sand that brings, has guaranteed the safety of construction. And installing a special-shaped extension steel sleeve at the tunnel portal, and starting tunneling after the shield machine enters the cylinder body to be in place. The special-shaped steel sleeve can adjust the horizontal translation channel and the line oblique crossing surface into a vertical surface, and the barrel is internally filled in advance. When the shield cutter head enters the special-shaped steel sleeve, the waterproof curtain cloth and the turning plate which are arranged at the end part of the special-shaped steel sleeve can form a sealing state with the shield shell. Therefore, the hole is effectively plugged, one side of the cutter head is effectively prevented from cutting soil, and the other side of the cutter head is in an idle state. The soil body is stressed unevenly, and the phenomenon of water gushing and sand gushing is caused. The construction safety is improved. A special-shaped steel sleeve for shield constructs machine is originated has characteristics such as practicality is strong, easy and simple to handle, practice thrift the cost, save time, improve work efficiency, effectively ensure constructor's safety.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
Fig. 1 is a schematic structural diagram of a special-shaped steel sleeve for shield tunneling machine initiation according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a special-shaped steel sleeve for shield tunneling machine initiation according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of the base of the special-shaped steel sleeve for shield machine initiation according to one embodiment of the present invention.
Detailed Description
The present invention is further described in detail below with reference to the drawings so that those skilled in the art can implement the invention with reference to the description.
It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
As shown in fig. 1-3, the utility model provides a special-shaped steel sleeve for shield constructs machine originated, it includes:
the cylinder 100 is a cylindrical structure with two open ends, the cylinder 100 has a first end 101 and a second end 102 along the axial direction, the first end 101 is circular, and the second end 102 is oval; the second end 102 is formed by cutting off a part of the cylinder 100 from an outer tangent point 103 of the cylinder along a diagonal line 104, and the diagonal line 104 forms an included angle alpha of 40-50 degrees with the axial direction of the cylinder 100; the distance between the external tangent point 103 and the end face of the first end 101 is 600-800 mm; when the included angle between the oblique cutting line 104 and the axis of the barrel 100 is adjusted according to the actual working condition, namely the angle between the translation channel and the oblique intersection surface of the line to be tunneled. For example, the inclined plane angle of the opening of the path to be tunneled is 43 degrees, preferably, the included angle between the inclined line of the special-shaped steel sleeve and the axis of the cylinder body 100 is 44 degrees.
And a base 200 installed at the bottom of the cartridge 100 and supporting the cartridge 100, the base 200 including a first base 201 and a second base 202, wherein one end of the second base 202 is wedge-shaped to fit the second end 102 of the cartridge 100. A special-shaped steel sleeve for shield structure machine is originated has solved the conventional shield and has constructed the risk of gushing water and gushing sand that brings, has guaranteed the safety of construction. And (3) installing a special-shaped extending steel sleeve at the tunnel portal, and starting tunneling after the shield tunneling machine enters the barrel body 100 to be in place. The special-shaped steel sleeve can adjust the cross plane of the horizontal translation channel and the line to be a vertical plane, and the barrel 100 is filled with the steel sleeve in advance. When the shield cutter head enters the special-shaped steel sleeve, the waterproof curtain cloth and the turning plate which are arranged at the end part of the special-shaped steel sleeve can form a sealing state with the shield shell. Therefore, the hole is effectively plugged, one side of the cutter head is effectively prevented from cutting soil, and the other side of the cutter head is in an idle state. The soil body is stressed unevenly, and the phenomenon of water gushing and sand gushing is caused. The construction safety is improved.
In one embodiment, as shown in fig. 2, in the direction of the shield tunneling machine, the barrel 100 includes:
the width of the upstream cylinder 110 is 2600-; the width defined between the tangent point 103 and the edge of the upstream cylinder 110 may be used to install a seal assembly, although it is also possible to attach an additional separate seal cylinder; the structural stability of the special-shaped steel sleeve is improved, and the sealing effect of the special-shaped steel sleeve is improved.
An intermediate cylinder 120 having a width of 2600-; the middle cylinder 120 is used for connection, and the edge of the middle cylinder 120 is used for matching the inclined plane of the tunnel door to be tunneled and is consistent with the inclined cutting line of the upstream cylinder 100.
And a downstream cylinder 130 having a width of 2700-. Thus, the division of the cartridge 100 into three sections facilitates transportation and rapid assembly and translation on site. Meanwhile, the second end of the special-shaped steel sleeve can be guaranteed to be matched with the tunnel portal shape of the line to be tunneled, sealing with the tunnel portal is facilitated, and filling efficiency is improved.
In one embodiment, as shown in fig. 3, the first base 201 comprises: a first bottom plate 2011, which is long and parallel to the ground, wherein the length direction of the first bottom plate 2011 is perpendicular to the axial direction of the upstream cylinder 110;
four first bearing plates 2012 extending along the length direction of the first bottom plate 2011, and welded to the first bottom plate 2011 at intervals and vertically, wherein the upper edge of the first bearing plate 2012 is connected to the outer side wall of the upstream cylinder 110; the first force bearing plate 2012 is welded to the first bottom plate 2011 at equal intervals, for example, or may be welded to the first bottom plate 2011 at a larger interval in the middle and at a smaller interval in the edge.
And two first lifting boxes 2013 which are respectively arranged at two ends of the first base 201, wherein a multilayer rib plate and at least one jack are arranged in the first lifting box 2013. Two ends of the first base 201 are provided with hoisting boxes for translation of the special-shaped steel sleeve, and construction efficiency is improved.
In one embodiment, as shown in fig. 3, the second base 202 includes: the second bottom plate 2021 is in a long strip shape, the length direction of the second bottom plate 2021 is perpendicular to the axial direction of the middle cylinder 120, and a first end of the second bottom plate 2021 is matched with the edge cut-off part of the middle cylinder 120;
four second force bearing plates 2022, each extending along the length direction of the second base plate 2021, and welded to the second base plate 2021 at intervals and vertically, wherein the upper edge of the second force bearing plate 2022 is connected to the outer side wall of the middle cylinder 120;
and a second jack box 2023, which is one and is disposed at the second end of the second base 202, wherein a plurality of rib plates and at least one jack are disposed in the second jack box 2023. Because the middle cylinder 120 is cut away to correspond to the angle of the tunnel door to be tunneled, the second base 202 is consistent with the edge of the middle cylinder 120, so that the structural stability of the middle cylinder 120 is maintained, and meanwhile, the middle cylinder is not prone to deformation during translation and steering.
In one embodiment, as shown in fig. 1, the special-shaped steel sleeve for shield machine initiation further comprises: three filler holes 300 which are respectively opened at the top of the upstream cylinder 110, the middle cylinder 120 and the downstream cylinder 130; the filling hole 300 is circular, and the hole diameter is 720-920 mm. The filling hole 300 is used for filling the inside of the cylinder body to form a certain soil pressure after the special-shaped steel sleeve is installed in place. The shield machine is pushed forward until the cutter head panel is close to the tunnel face on one side of the tunnel portal, filler is filled in a triangular area in the barrel 100, the filler is made of bentonite and fly ash mortar mixture, and the strength and toughness of the filler are close to those of a reinforced soil body through trial assembly.
In one embodiment, as shown in fig. 1 and 2, a circular cover plate 301 is further disposed on the filler hole 300. After the filling is completed, the filling hole 300 is sealed by the circular cover plate 301, so that the sealing of the cylinder 100 is ensured.
In one embodiment, as shown in fig. 1, the upstream cylinder 110 and the middle cylinder 120 are respectively composed of an upper semicircle and a lower semicircle. Thereby facilitating rapid transport and assembly.
In one embodiment, as shown in fig. 1, the upstream cylinder 110, the intermediate cylinder 120 and the downstream cylinder 130 are all connected by arc welding, and the welding seam is welded along the circumference of the cylinder inside and outside. In order to provide sealing performance of the cylinder body 100, full-length welding is generally adopted, so that structural stability is improved, and construction safety is guaranteed.
In one embodiment, as shown in fig. 1, 2 parallel steel rails are installed on the bottom surface of the inner wall of the cylinder 100, 7-shaped plates are welded on two sides of the steel rails, and the height of the steel rails near the first end 101 is 20 mm. After the shield machine enters the cylinder body 100, the cutter head of the shield machine can be slightly lifted, and the starting of the shield machine can be smoothly finished.
In one embodiment, as shown in fig. 1, the first end 101 of the cartridge 100 is further provided with a seal 105, and the seal 105 is, for example, a water stop curtain and a flap. The seal 105 facilitates the plugging of the portal.
While the embodiments of the invention have been described above, it is not intended to be limited to the details shown, or described, but rather to cover all modifications, which would come within the scope of the appended claims, and all changes which come within the meaning and range of equivalency of the art are therefore intended to be embraced therein.
Claims (10)
1. A special-shaped steel sleeve for shield constructs quick-witted originated, its characterized in that includes:
the cylinder body is of a cylindrical structure with openings at two ends, and is provided with a first end and a second end along the axial direction, wherein the first end is circular, and the second end is oval; the second end is formed by cutting off a part of the cylinder from the outer tangent point of the cylinder along a diagonal line, and the diagonal line and the axial direction of the cylinder form an included angle of 40-50 degrees; the distance between the external tangent point and the end face of the first end is 600-800 mm;
and the base is arranged at the bottom of the barrel body and supports the barrel body, the base comprises a first base and a second base, and one end of the second base is wedge-shaped so as to be matched with the second end of the barrel body.
2. The profiled steel sleeve for shield tunneling initiation as claimed in claim 1, wherein in a direction of shield tunneling, the sleeve comprises:
the width of the upstream cylinder is 2600-;
a middle cylinder with a width of 2600 and 2800mm, wherein the edge of the circumferential wall of the middle cylinder overlaps the oblique cutting line;
and a downstream cylinder having a width of 2700-.
3. The profiled steel sleeve for shield tunneling initiation of claim 2, wherein the first foundation comprises: the first bottom plate is long-strip-shaped and laid parallel to the ground, and the length direction of the first bottom plate is perpendicular to the axial direction of the upstream cylinder;
the four first bearing plates extend along the length direction of the first base plate, are welded on the first base plate at intervals and vertically, and the upper edge of each first bearing plate is connected with the outer side wall of the upstream cylinder;
and two first weight loading boxes are arranged at two ends of the first base respectively, and a multilayer rib plate and at least one jack are arranged in each first weight loading box.
4. The profiled steel sleeve for shield tunneling initiation of claim 3, wherein the second mount comprises: the second bottom plate is in a strip shape, the length direction of the second bottom plate is perpendicular to the axial direction of the middle cylinder, and the first end of the second bottom plate is matched with the edge cut-off part of the middle cylinder;
the number of the second bearing plates is four, the four second bearing plates extend along the length direction of the second bottom plate, are welded on the second bottom plate at intervals and are vertically welded on the second bottom plate, and the upper edge of the first bearing plate is connected with the outer side wall of the middle cylinder;
and the second hoisting box is one and is arranged at the second end of the second base, and a multilayer rib plate and at least one jack are arranged in the second hoisting box.
5. The profiled steel sleeve for shield tunneling initiation of claim 2, further comprising: three filling holes are formed in the top of the upstream cylinder, the top of the middle cylinder and the top of the downstream cylinder respectively; the filling hole is circular, and the hole diameter is 720-920 mm.
6. The profiled steel sleeve for shield tunneling initiation of claim 5, wherein a circular cover plate is further disposed on the filler hole.
7. The profiled steel sleeve for shield tunneling initiation as claimed in claim 2, wherein the upstream cylinder and the intermediate cylinder are respectively composed of upper and lower semicircles.
8. The profiled steel sleeve for shield tunneling initiation as claimed in claim 2, wherein the upstream cylinder, the intermediate cylinder and the downstream cylinder are all welded together by means of arcs, and the weld seam is welded to the inside and outside of the entire circumference of the circumferential wall of the cylinders.
9. The profiled steel sleeve for shield tunneling machine initiation as claimed in claim 1, wherein 2 parallel rails are installed on the bottom surface of the inner wall of the sleeve, 7-shaped plates are welded to both sides of the rails, and the height of the rails is raised by 20mm near the first end.
10. The profiled steel sleeve for shield tunneling machine initiation as claimed in claim 1, wherein the first end of the sleeve is further provided with a water stop curtain and a flap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022052361.4U CN213807670U (en) | 2020-09-17 | 2020-09-17 | Special-shaped steel sleeve for shield machine initiation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022052361.4U CN213807670U (en) | 2020-09-17 | 2020-09-17 | Special-shaped steel sleeve for shield machine initiation |
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| Publication Number | Publication Date |
|---|---|
| CN213807670U true CN213807670U (en) | 2021-07-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022052361.4U Active CN213807670U (en) | 2020-09-17 | 2020-09-17 | Special-shaped steel sleeve for shield machine initiation |
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|---|---|
| CN (1) | CN213807670U (en) |
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2020
- 2020-09-17 CN CN202022052361.4U patent/CN213807670U/en active Active
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