CN110924949A - Assembled shield structure manhole system - Google Patents
Assembled shield structure manhole system Download PDFInfo
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- CN110924949A CN110924949A CN201911260465.XA CN201911260465A CN110924949A CN 110924949 A CN110924949 A CN 110924949A CN 201911260465 A CN201911260465 A CN 201911260465A CN 110924949 A CN110924949 A CN 110924949A
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- well body
- shield
- supporting
- section
- well
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D8/00—Shafts not provided for in groups E21D1/00 - E21D7/00
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D5/00—Lining shafts; Linings therefor
Abstract
The invention provides an assembled shield maintenance well system, which comprises a well body and a supporting structure, wherein the well body is arranged on a ground foundation, and the assembled shield maintenance well system comprises a conventional section, a reinforcing section and a shield section from top to bottom in the depth direction of the well body; the supporting structure is arranged in the well body and comprises a plurality of first supporting structures and a plurality of second supporting structures, the first supporting structures are arranged in the conventional section and the reinforcing section at intervals along the depth direction of the well body, the second supporting structures are arranged in the shield section at intervals along the depth direction of the well body, and avoidance holes for the shield machine to enter are formed in the second supporting structures. The invention solves the problems that the supporting structure in the shield manhole in the prior art is poor in stability and not easy to dismantle, and the supporting structure is remained in soil after construction is finished, so that the environment is poor and the construction efficiency is low.
Description
Technical Field
The invention relates to the field of maintenance well construction, in particular to an assembly type shield maintenance well system.
Background
In the construction process of the subway tunnel, the shield method is widely applied due to high mechanization degree, safe construction and good adaptability. In the shield construction process, equipment parts, particularly a cutter head and a cutter, are lost due to stratum and other reasons. The abrasion of the cutter head can affect the shield tunneling speed and the tunneling efficiency, even pause occurs in the tunneling process, and the engineering construction progress is seriously affected. In order to prevent the phenomenon, the shield cutter head needs to be overhauled or replaced reasonably in time, so that the construction of the shield cutter head overhaul well is an essential part in shield construction.
The existing shield cutter head manhole generally adopts a reinforced bar grating and concrete anchor spraying to form a supporting structure of the shield manhole, the construction period is long, the construction cost is high, and the construction materials cannot be recycled, particularly the concrete supporting structure, after the construction is completed, most of the construction materials cannot be completely removed, so that part or all of the construction materials are remained in a soil body, adverse effects can be caused on the construction of other subsequent projects, the environment friendliness is poor, and the construction efficiency is low.
Disclosure of Invention
The invention mainly aims to provide an assembly type shield manhole system, which is used for solving the problems that a supporting structure in a shield manhole in the prior art is poor in stability and not easy to dismantle, and the supporting structure is remained in soil after construction is finished, so that the environment friendliness is poor and the construction efficiency is low.
In order to achieve the purpose, the assembled shield workover well system comprises a well body and a supporting structure, wherein the well body is arranged on a ground foundation, and the assembled shield workover well system comprises a conventional section, a reinforcing section and a shield section from top to bottom in the depth direction of the well body; the supporting structure is arranged in the well body and comprises a plurality of first supporting structures and a plurality of second supporting structures, the first supporting structures are arranged in the conventional section and the reinforcing section at intervals along the depth direction of the well body, the second supporting structures are arranged in the shield section at intervals along the depth direction of the well body, and avoidance holes for the shield machine to enter are formed in the second supporting structures.
Further, the first supporting structure comprises a corrugated plate, a steel waist beam, a first upright post and an inner supporting piece, wherein the corrugated plate is arranged in the well body and attached to the inner wall surface of the well body around the circumferential direction of the well body; the steel waist beam is connected with the corrugated plate and is positioned on the inner peripheral side of the corrugated plate, and the steel waist beam is in an annular shape matched with the cross section of the well body; the two first upright columns are arranged oppositely, and each first upright column is connected with the steel waist beam and arranged along the depth direction of the well body; the number of the inner supporting pieces is at least one, and two ends of each inner supporting piece are respectively connected with the two first stand columns so as to pre-tighten the steel waist beam.
Furthermore, the cross section of the well body is oval, the steel waist beam is in an oval ring shape matched with the cross section of the well body in shape, and the two first stand columns are respectively located at two ends of the short diameter of the oval ring-shaped steel waist beam.
Furthermore, the second supporting structure comprises a corrugated plate, a steel waist beam, a first upright post, a second upright post, an inner supporting piece and a transverse supporting beam, wherein the corrugated plate is arranged in the well body and attached to the inner wall surface of the well body around the circumferential direction of the well body; the steel waist beam is connected with the corrugated plate and is positioned on the inner peripheral side of the corrugated plate, and the steel waist beam is in an annular shape matched with the cross section of the well body; the first stand column is positioned between the two second stand columns and connected with the steel waist beam; the first end of the inner supporting piece is connected with the first upright post, and the second end of the inner supporting piece forms a free end; the number of the transverse supporting beams is two, the first ends of the two transverse supporting beams are respectively connected with the two second stand columns, and the second ends of the two transverse supporting beams are connected with the free end of the inner supporting member.
Furthermore, the second supporting structure further comprises two inclined supporting beams, the first ends of the two inclined supporting beams are respectively connected with the two second stand columns, and the second ends of the two inclined supporting beams are connected with one first stand column which is far away from one side of the avoidance hole in the two first stand columns.
Further, the steel waist beam is formed by splicing multiple sections of hollow square steel.
Furthermore, the fabricated shield workover well system further comprises a reinforcing longitudinal beam, wherein the reinforcing longitudinal beam extends along the depth direction of the well body and is sequentially connected with a plurality of steel waist beams of the first supporting structure and a plurality of steel waist beams of the second supporting structure.
Furthermore, the reinforcing longitudinal beams are multiple and are arranged at equal intervals around the circumferential direction of the well body.
Further, the spacing distance between the plurality of first supporting structures located in the conventional section is greater than the spacing distance between the plurality of first supporting structures located in the reinforcing section.
Furthermore, a foundation pit is further formed in the ground foundation, the foundation pit is located above the well body, the sectional area of the foundation pit is larger than that of the well body, a locking collar beam is poured in the foundation pit, and the well body is located in an area surrounded by the locking collar beam.
By applying the technical scheme of the invention, the first supporting structures are respectively arranged in the conventional section and the reinforcing section, and the second supporting structures are arranged in the shield section, so that well wall supports with different strengths can be conveniently formed in a well body to form different stress systems; in addition, a reinforcing section is arranged between the conventional section and the shield section, so that the structural strength of the well wall support above the shield section is enhanced, the soil body collapse when the shield machine enters the shield section is effectively avoided, and the use stability of the assembled shield maintenance well system is improved.
Moreover, the assembled shield structure manhole system that this application provided is the batch production prefabrication, can effectively improve the efficiency of construction of assembled shield structure manhole system, and recoverable first supporting construction and second supporting construction after the construction is accomplished, has greatly reduced the construction cost of assembled shield structure manhole system, and after the construction was accomplished, there was not the residue in the soil body, can not cause the pollution to the soil body, has improved green construction level.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 illustrates a front view internal schematic view of an unassembled support structure within a well body of a fabricated shield access well system according to an alternate embodiment of the present invention;
FIG. 2 shows a front view internal schematic of a fabricated shield access well system according to an alternative embodiment of the present invention, i.e. with the supporting structure installed in FIG. 1;
FIG. 3 illustrates a schematic top view perspective view of a first support structure at a conventional section of the fabricated shield service well system of FIG. 2;
fig. 4 shows a schematic top view of a second support structure at a shield section of the assembled shield service well system of fig. 2.
Wherein the figures include the following reference numerals:
200. a well body; 1. a ground foundation; 101. a conventional section; 102. a reinforcement section; 103. a shield segment; 20. a first support structure; 30. a second supporting structure; 34. avoiding the hole; 21. a corrugated plate; 22. a steel wale; 23. a first upright post; 24. an inner support; 31. a second upright post; 33. a transverse support beam; 32. inclining the support beam; 40. reinforcing the longitudinal beam; 100. a foundation pit; 10. and a collar beam.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to solve the problems that a supporting structure in a shield manhole in the prior art is poor in stability and not easy to remove, and the supporting structure is remained in soil after construction is finished, so that the environment friendliness is poor, and the construction efficiency is low, the invention provides an assembly type shield manhole system, which comprises a well body 200 and the supporting structure, wherein the well body 200 is arranged on a ground foundation 1, and the assembly type shield manhole system comprises a conventional section 101, a reinforcing section 102 and a shield section 103 from top to bottom in the depth direction of the well body 200; the supporting structures are arranged in the well body 200, wherein the supporting structures comprise a plurality of first supporting structures 20 and a plurality of second supporting structures 30, the plurality of first supporting structures 20 are arranged in the normal section 101 and the reinforcing section 102 at intervals along the depth direction of the well body 200, the plurality of second supporting structures 30 are arranged in the shield section 103 at intervals along the depth direction of the well body 200, and avoidance holes 34 for entering of the shield machine are formed in the second supporting structures 30.
By applying the technical scheme, the first supporting structures 20 are respectively arranged in the conventional section 101 and the reinforcing section 102, and the second supporting structures 30 are arranged in the shield section 103, so that well wall supports with different strengths can be conveniently formed in the well body 200, and different stress systems can be formed; in addition, a reinforcing section 102 is arranged between the conventional section 101 and the shield section 103 so as to emphatically enhance the structural strength of the well wall support above the shield section 103, effectively avoid soil collapse when the shield machine enters the shield section 103, and improve the use stability of the assembled shield maintenance well system.
Moreover, the assembled shield structure manhole system that this application provided is the batch production prefabrication, can effectively improve the efficiency of construction of assembled shield structure manhole system, and recoverable first supporting construction 20 and second supporting construction 30 after the construction is accomplished, has greatly reduced the construction cost of assembled shield structure manhole system, and after the construction is accomplished, there is not the residual in the soil body, can not cause the pollution to the soil body, has improved green construction level.
As shown in fig. 2 and 3, the first supporting structure 20 includes a corrugated plate 21, a steel waist beam 22, a first column 23, and an inner support 24, wherein the corrugated plate 21 is disposed in the well 200 and attached to an inner wall surface of the well 200 around the circumference of the well 200; the steel waist beam 22 is connected with the corrugated plate 21 and is positioned on the inner peripheral side of the corrugated plate 21, and the steel waist beam 22 is in a ring shape matched with the cross section of the well body 200; the number of the first upright columns 23 is two, the two first upright columns 23 are arranged oppositely, and each first upright column 23 is connected with the steel waist beam 22 and arranged along the depth direction of the well body 200; at least one inner support 24 is provided, and two ends of each inner support 24 are respectively connected with the two first upright posts 23 so as to pre-tighten the steel waist beam 22. The steel waist beam 22 is arranged on the inner peripheral side of the corrugated plate 21, so that the corrugated plate 21 is conveniently and stably supported by the steel waist beam 22, and soil is prevented from entering the well body 200 from the steel waist beam 22; in addition, the lateral load of the corrugated plate 21 can be effectively transmitted to the steel waist beam 22 and the inner supporting piece 24, and the steel waist beam 22 and the inner supporting piece 24 are used as stressed members and can bear the lateral load of the soil body around the assembled shield maintenance well system, so that the first supporting structure 20 is prevented from being damaged due to stress concentration.
As shown in fig. 3, the cross section of the well body 200 is an oval shape, the steel wale 22 is an oval ring shape adapted to the cross section of the well body 200, and the two first vertical columns 23 are respectively located at two ends of the minor axis of the oval ring-shaped steel wale 22. Therefore, the connection adaptability of the steel waist beam 22 and the corrugated plate 21 is effectively improved, the first supporting structure 20 is convenient to assemble in the construction process, and the first supporting structure 20 is convenient to disassemble, recover and transport after the construction is finished; the two first upright columns 23 are respectively positioned at two ends of the short diameter of the oval steel waist beam 22, so that the inner support piece 24 is just positioned on the short diameter of the oval steel waist beam 22 on one hand, and the steel waist beam 22 is conveniently pre-tightened; on the other hand, the structural size of the inner support 24 is made smaller, and the consumables of the inner support 24 can be reduced.
As shown in fig. 4, the second supporting structure 30 includes a corrugated plate 21, a steel waist beam 22, a first upright column 23, a second upright column 31, an inner supporting member 24 and a transverse supporting beam 33, wherein the corrugated plate 21 is arranged in the well body 200 and attached to the inner wall surface of the well body 200 around the circumferential direction of the well body 200; the steel waist beam 22 is connected with the corrugated plate 21 and is positioned on the inner peripheral side of the corrugated plate 21, and the steel waist beam 22 is in a ring shape matched with the cross section of the well body 200; the number of the second upright columns 31 is two, the two second upright columns 31 are arranged oppositely, each second upright column 31 is connected with the steel waist beam 22 and arranged along the depth direction of the well body 200, and the first upright column 23 is positioned between the two second upright columns 31 and connected with the steel waist beam 22; a first end of the inner support 24 is connected to the first upright 23, and a second end of the inner support 24 forms a connection free end; the number of the transverse support beams 33 is two, first ends of the two transverse support beams 33 are respectively connected with the two second upright columns 31, and second ends of the two transverse support beams 33 are connected with the free connecting ends of the inner support members 24.
The steel wale 22 is arranged on the inner peripheral side of the corrugated plate 21 to provide stable support for the corrugated plate 21 and prevent soil from entering the well body 200 through the steel wale 22; in addition, the corrugated plate 21 can effectively transmit the side load of the soil body to the steel waist beam 22 and the inner supporting member 24, so that the stress concentration generated on the second supporting structure 30 is avoided; the steel wale 22 and the inner support 24 are used as stressed components and can bear the lateral load of the soil body around the assembled shield maintenance well; different from the first supporting structure 20, the second supporting structure 30 further includes two transverse supporting beams 33, which not only improves the supporting strength of the steel waist beam 22 to the corrugated plate 21, but also effectively increases the overall structural strength at the shield segment 103.
As shown in fig. 4, the second supporting structure 30 further includes two inclined supporting beams 32, first ends of the two inclined supporting beams 32 are respectively connected to the two second vertical columns 31, and second ends of the two inclined supporting beams 32 are connected to one of the two first vertical columns 23 on the side away from the avoidance hole 34. Two inclined supporting beams 32 are erected layer by layer on each layer, and two transverse supporting beams 33 are arranged, so that the overall structural strength of the shield segment 103 is increased, the shock resistance of the shield segment 103 is effectively improved, the shield machine is guaranteed to be smoothly propelled into the assembled shield maintenance well by the shield segment 103, and the safety and stability of the structure in the shield jacking process are effectively guaranteed.
It should be noted that, in the present application, the steel wale 22 is formed by splicing a plurality of hollow square steel sections. The hollow square steel can effectively reduce the weight of the steel waist rail 22, and is convenient to dismantle, recover and transport after construction.
As shown in fig. 4, the fabricated shield manhole system further includes a reinforcing longitudinal beam 40, and the reinforcing longitudinal beam 40 extends in the depth direction of the well body 200 and sequentially connects the plurality of waist beams 22 of the first supporting structure 20 and the plurality of waist beams 22 of the second supporting structure 30. The deformation or the cracking of the welding position structure of the steel waist beam 22 can be effectively prevented, the overall structural strength of the well wall support of the well body 200 is enhanced, the first support structure 20 and the second support structure 30 are ensured to be attached to the well wall of the well body 200, and deformation is not generated.
Alternatively, the reinforcing longitudinal beams 40 are provided in plural, and the plural reinforcing longitudinal beams 40 are provided at equal intervals around the circumference of the well body 200. The contact area of the welding position of the steel waist beam 22 can be increased, the steel waist beam 22 is ensured to be supported in a stable circumferential direction, the welding position structure of the steel waist beam 22 is prevented from deforming or cracking, the overall structural strength of the well wall support is enhanced, and the deformation of the well wall support is avoided.
It should be noted that, in the present application, the spacing distance between the plurality of first supporting structures 20 located in the regular section 101 is greater than the spacing distance between the plurality of first supporting structures 20 located in the reinforcing section 102. The arrangement of the first supporting structures 20 in the reinforcing section 102 is dense, so that the using number of the first supporting structures 20 in the conventional section 101 is effectively controlled, the overall cost of the assembled shield maintenance well is reduced, the strength of the reinforcing section 102 is increased, the overall structural strength of the well wall support of the well body 200 can be effectively enhanced, the strength requirement of the well wall support of the well body 200 is met, and soil body collapse when the shield tunneling machine enters the shield section 103 is avoided.
As shown in fig. 1 and 2, a foundation pit 100 is further formed on the ground foundation 1, the foundation pit 100 is located above the well body 200, the sectional area of the foundation pit 100 is larger than that of the well body 200, a locking collar beam 10 is poured in the foundation pit 100, and the well body 200 is located in an area surrounded by the locking collar beam 10. The well head of the well body 200 is effectively reinforced, and well head safety facilities are convenient to fix. And the soil around the well body 200 is protected from collapse.
It should be noted that, in the present application, the cross-sectional dimension of the collar tie beam 10 is 1.5m × 1.0m (height), the collar tie beam is integrally cast, the collar tie beam bottom is a C20 concrete cushion layer with a thickness of 10cm, and the collar tie beam 10 and the steel bar protection layers on the inner and outer sides of the retaining wall are both 30 mm.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise, and it should be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of features, steps, operations, devices, components, and/or combinations thereof.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An assembled shield structure manhole system, comprising:
the well body (200), the well body (200) is arranged on a ground foundation (1), and the assembled shield maintenance well system comprises a conventional section (101), a reinforcement section (102) and a shield section (103) from top to bottom in the depth direction of the well body (200);
the supporting structure is arranged in the well body (200), and comprises a plurality of first supporting structures (20) and a plurality of second supporting structures (30), the plurality of first supporting structures (20) are arranged in the normal section (101) and the reinforcing section (102) at intervals along the depth direction of the well body (200), the plurality of second supporting structures (30) are arranged in the shield section (103) at intervals along the depth direction of the well body (200), and an avoidance hole (34) for entering of a shield machine is formed in each second supporting structure (30).
2. The fitted shield service well system according to claim 1, wherein the first support structure (20) comprises:
the corrugated plate (21) is arranged in the well body (200) and attached to the inner wall surface of the well body (200) in the circumferential direction of the well body (200) in a surrounding manner;
the steel wale (22), the steel wale (22) is connected with the corrugated plate (21) and is positioned on the inner peripheral side of the corrugated plate (21), and the steel wale (22) is in a ring shape matched with the cross section of the well body (200);
the number of the first upright columns (23) is two, the two first upright columns (23) are arranged oppositely, and each first upright column (23) is connected with the steel waist beam (22) and arranged along the depth direction of the well body (200);
the number of the inner supporting pieces (24) is at least one, and two ends of each inner supporting piece (24) are respectively connected with the two first vertical columns (23) so as to pre-tighten the steel wale (22).
3. The fabricated shield workover well system according to claim 2, wherein the cross section of the well body (200) is elliptical, the steel wale (22) is in an elliptical ring shape matched with the cross section of the well body (200), and the two first columns (23) are respectively located at two ends of the short diameter of the elliptical ring-shaped steel wale (22).
4. The fitted shield service well system according to claim 1, wherein the second supporting structure (30) comprises:
the corrugated plate (21) is arranged in the well body (200) and attached to the inner wall surface of the well body (200) in the circumferential direction of the well body (200) in a surrounding manner;
the steel wale (22), the steel wale (22) is connected with the corrugated plate (21) and is positioned on the inner peripheral side of the corrugated plate (21), and the steel wale (22) is in a ring shape matched with the cross section of the well body (200);
the steel wale structure comprises a first upright column (23) and a second upright column (31), wherein the number of the second upright columns (31) is two, the two second upright columns (31) are arranged oppositely, each second upright column (31) is connected with the steel wale (22) and arranged along the depth direction of the well body (200), and the first upright column (23) is located between the two second upright columns (31) and connected with the steel wale (22);
an inner support (24), a first end of said inner support (24) being connected with said first upright (23), a second end of said inner support (24) forming a connection free end;
the number of the transverse supporting beams (33) is two, the first ends of the two transverse supporting beams (33) are respectively connected with the two second vertical columns (31), and the second ends of the two transverse supporting beams (33) are connected with the free ends of the inner supporting pieces (24).
5. The fabricated shield workover system according to claim 4, wherein the second supporting structure (30) further comprises two inclined supporting beams (32), the first ends of the two inclined supporting beams (32) are respectively connected with the two second vertical columns (31), and the second ends of the two inclined supporting beams (32) are connected with one of the two first vertical columns (23) on the side far away from the avoidance hole (34).
6. The fabricated shield access well system of claim 2 or 4, wherein the steel wale (22) is formed by splicing a plurality of sections of hollow square steel.
7. The fabricated shield manhole system according to claim 2, further comprising a reinforcing longitudinal beam (40), wherein the reinforcing longitudinal beam (40) extends in a depth direction of the well body (200) and sequentially connects a plurality of waist steel beams (22) of the first supporting structure (20) and a plurality of waist steel beams (22) of the second supporting structure (30).
8. The fabricated shield access well system of claim 7, wherein the reinforcing stringers (40) are a plurality of reinforcing stringers (40), the plurality of reinforcing stringers (40) being equally spaced around the circumference of the well body (200).
9. The fabricated shield manhole system according to claim 1, wherein a spacing distance between the plurality of first supporting structures (20) located in the regular section (101) is greater than a spacing distance between the plurality of first supporting structures (20) located in the reinforcing section (102).
10. The assembled shield workover well system according to claim 1, wherein a foundation pit (100) is further formed in the ground foundation (1), the foundation pit (100) is located above the well body (200), the sectional area of the foundation pit (100) is larger than that of the well body (200), a locking collar beam (10) is arranged in the foundation pit (100) in a pouring mode, and the well body (200) is located in an area surrounded by the locking collar beam (10).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911260465.XA CN110924949A (en) | 2019-12-10 | 2019-12-10 | Assembled shield structure manhole system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911260465.XA CN110924949A (en) | 2019-12-10 | 2019-12-10 | Assembled shield structure manhole system |
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| CN110924949A true CN110924949A (en) | 2020-03-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2765447C1 (en) * | 2021-07-30 | 2022-01-31 | Владимир Васильевич Галайко | Monolithic reinforced concrete support of vertical round shaft |
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