CN113090271A - Top shield machine and top shield construction method - Google Patents
Top shield machine and top shield construction method Download PDFInfo
- Publication number
- CN113090271A CN113090271A CN202110409828.2A CN202110409828A CN113090271A CN 113090271 A CN113090271 A CN 113090271A CN 202110409828 A CN202110409828 A CN 202110409828A CN 113090271 A CN113090271 A CN 113090271A
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- CN
- China
- Prior art keywords
- shield
- tail
- construction method
- top shield
- pipe
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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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Classifications
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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
- 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
- E21D9/0607—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining the shield being provided with devices for lining the tunnel, e.g. shuttering
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- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
- E21D9/0621—Shield advancing devices
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- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
- E21D9/10—Making by using boring or cutting machines
Abstract
The invention provides a top shield machine and a top shield construction method, which comprise the following steps: pipe jacking section: opening an initial well, putting rock breaking equipment with a bell and spigot connected at the tail end into the initial well, and performing pipe jacking construction; shield workshop section: and (4) arranging a conversion well, and replacing the bell and spigot at the tail end of the rock breaking equipment with a tail shield in the conversion well to carry out shield construction. The application creatively provides a conversion well type top shield construction method, and solves the problem that the original top shield construction method cannot solve the plastic deformation of the tail brush. The applicability of the top shield construction method is widened, and the safety and the reliability of the top shield construction method are improved.
Description
Technical Field
The invention relates to the field of excavation equipment, in particular to a top shield machine and a top shield construction method.
Background
The invention discloses a top shield machine (application number 202011256060.1) applied by the applicant, which comprises a rock breaking device, a middle shield and a tail shield which are sequentially arranged, wherein a propulsion oil cylinder is arranged between the middle shield and the tail shield, a conversion ring which is axially and movably connected with the tail shield is arranged in the tail shield, the front end of the conversion ring is abutted against the output end of the propulsion oil cylinder, the rear end of the conversion ring is abutted against a duct piece, and a main top oil cylinder is arranged at the tail part of the duct piece.
The existing top shield construction method is that a conversion ring is connected behind a top shield machine, a pipe is pushed firstly in a pipe jacking mode, and a pipe joint is pushed to advance through a main jacking oil cylinder. When a small-radius turning is needed or the jacking force is large, switching to the shield mode is started. In the shield mode, a shield machine is adopted to be provided with a thrust cylinder, the shield machine is propelled forwards by means of the friction resistance between formed pipe pieces and soil bodies, then the pipe pieces are assembled by an assembling machine to complete the construction of each ring, and the thrust cylinder is used for realizing the tunneling of the whole top shield machine.
The existing top shield construction method has many advantages compared with the single top shield, but has the same problems. For example, when the pipe is pushed for a long time, the tail brush is always pressed, and is lack of stress change, so that plastic deformation is easy to occur. Moreover, the top shield construction method has the great advantage that a starting station is not needed, the length of a starting well of the top shield construction method is generally not more than 10 meters, and if the total length of a locomotive group is more than 10 meters, the pipe laying is inconvenient.
Therefore, in order to overcome the disadvantages of the prior art, a top shield machine and a top shield construction method are needed to solve the above problems.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention aims to provide a top shield machine and a top shield construction method.
In order to achieve the above objects and other related objects, the present invention provides the following technical solutions: a top shield construction method comprises the following steps:
a. planning a construction working section, and dividing the construction working section into a pipe jacking working section and a shield working section;
b. an initial well is arranged at the initial end of a pipe jacking working section, rock breaking equipment with a bell and spigot connected at the rear end is placed in the initial well, a main jacking oil cylinder in the initial well jacks a pipe piece to act on the bell and spigot, and pipe jacking construction is carried out according to a planned pipeline;
c. and (3) arranging a conversion well at the tail end of the pipe jacking working section, namely the initial end of the shield working section, replacing a bell and spigot connected with the rear end of the rock breaking equipment in the conversion well with a tail shield, jacking a conversion ring through a thrust oil cylinder in the tail shield to act on the formed pipe sheets in the pipe jacking tunnel, and performing shield construction according to a planned pipeline.
The preferable technical scheme is as follows: the tail end of the rock breaking equipment and the bell and spigot are detachably and fixedly connected through bolts.
The preferable technical scheme is as follows: the tail end of the rock breaking equipment and the tail shield are detachably and fixedly connected through bolts.
A top shield machine comprises the rock breaking equipment, the bell socket and the tail shield, wherein the bell socket or the tail shield is selectively installed at the rear end of the rock breaking equipment according to a construction working section, and the bell socket, the tail shield and the rock breaking equipment are detachably and fixedly connected through bolts.
The preferable technical scheme is as follows: the tail shield is internally provided with a propulsion oil cylinder and a conversion ring, the conversion ring is arranged at the rear end of the tail shield and is axially and movably connected with the tail shield, the front end of the conversion ring is abutted against the output end of the propulsion oil cylinder, and the rear end of the conversion ring is abutted against a formed pipe piece in the pipe-jacking tunnel.
Due to the application of the technical scheme, the invention has the beneficial effects that:
1. according to the top shield construction method, a tail shield does not need to be placed during pipe jacking, the service life of the tail brush is greatly prolonged, the water stopping cost in construction is reduced, and the safety and reliability of construction are improved.
2. Compared with the traditional shield, the top shield construction method provided by the application has the advantages that the conversion well is greatly reduced compared with the traditional originating well, and the originating cost is greatly reduced.
3. According to the top shield construction method provided by the application, the formed top pipe tunnel is used for replacing an original station, on one hand, compared with the traditional shield, the cost for manufacturing the station is reduced, on the other hand, compared with the top shield construction method without a conversion well, the construction method does not have requirements on the length of a locomotive group, the difficulty that segments cannot be hoisted due to the fact that the locomotive group is long is eliminated, the construction difficulty is reduced, and the design difficulty of the locomotive group is reduced.
Drawings
FIG. 1 is a schematic view of the present invention.
In the above figures, 1, a rock breaking device; 2. a bell and spigot joint; 3. a tail shield.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
Please refer to fig. 1. It should be understood that in the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship which the product of the present invention is usually placed in when used, which is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. The terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should be further noted that, unless otherwise specifically stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection via an intermediate medium, and a communication between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example (b):
fig. 1 is a schematic view of a top shield construction method according to the present invention. It can be known that the top shield machine that this application provided, including broken rock equipment 1, tail shield 3 and socket joint 2. In the pipe-jacking working section, the rock breaking equipment 1 and the bell and spigot 2 are matched with an originating station (originating well) to carry out pipe-jacking tunneling; in the shield working section, the rock breaking equipment 1 and the tail shield 3 are matched with an initial station (a formed pipe-jacking tunnel) to carry out shield tunneling.
Specifically, the method comprises the following steps:
a. planning a construction working section, and dividing the construction working section into a pipe jacking working section and a shield working section;
b. pipe jacking section: opening an initial well, putting the rock breaking equipment 1 with the tail end connected with a bell and spigot 2 into the initial well, and performing pipe jacking construction;
c. shield workshop section: and (3) opening a conversion well, and replacing a socket 2 at the tail end of the rock breaking equipment 1 with a tail shield 3 in the conversion well to perform shield construction.
It should be noted that the tail end of the rock breaking device 1 is connected with the socket 2 and the tail shield 3 through a detachable fixed connection structure (bolt) so as to be detached and installed.
In the pipe jacking mode, a main jacking cylinder (not shown) is arranged in the starting well, and a pipe piece is jacked to act on the tail end of the socket 2 through the main jacking cylinder so as to realize pipe jacking tunneling.
In the shield tunneling mode, the formed pipe-jacking tunnel (by means of the frictional resistance between the pipe piece and the soil body in the pipe-jacking tunnel) is used as an initial station, and the formed pipe-jacking tunnel is jacked into the conversion ring through the propulsion oil cylinder in the tail shield 3 to act on the pipe piece, so that shield tunneling is realized.
The application still relates to a top shield machine, and this top shield machine includes broken rock equipment 1, bell and spigot 2 and tail shield 3, and broken rock equipment 1's rear end is according to construction workshop section optional loading bell and spigot 2 or tail shield 3, and the rigid coupling can all be dismantled through the bolt between bell and spigot 2 and tail shield 3 and the broken rock equipment 1.
A propulsion oil cylinder and a conversion ring are arranged in the tail shield 3, the conversion ring is arranged at the rear end of the tail shield 3 and is axially and movably connected with the tail shield 3, the front end of the conversion ring is abutted to the output end of the propulsion oil cylinder, and the rear end of the conversion ring is abutted to a pipe piece in the formed pipe-jacking tunnel.
This application does a little conversion well in the switching department of push pipe workshop section and shield structure workshop section, when beginning the push pipe, links up socket 2 jacking at broken rock equipment 1's tail end, in the conversion well, unloads socket 2, changes tail shield 3 and begins to convert into the shield structure, and the part of having accomplished the push pipe just in time is as the originating station of shield structure, and the influence of the size of well can not received to hoist section of jurisdiction yet.
In the ultra-long distance shield, a plurality of conversion wells can be arranged, and the tail brushes are replaced, so that the ultra-long construction distance can be replaced by the ultra-low well-making cost. The construction period of the well is shortened, and the construction cost is reduced.
The application creatively provides a conversion well type top shield construction method, and solves the problem that the original top shield construction method cannot solve the plastic deformation of the tail brush. The applicability of the top shield construction method is widened, and the safety and the reliability of the top shield construction method are improved.
Therefore, the invention has the following advantages:
1. according to the top shield construction method, a tail shield does not need to be placed during pipe jacking, the service life of the tail brush is greatly prolonged, the water stopping cost in construction is reduced, and the safety and reliability of construction are improved.
2. Compared with the traditional shield, the top shield construction method provided by the application has the advantages that the conversion well is greatly reduced compared with the traditional originating well, and the originating cost is greatly reduced.
3. According to the top shield construction method provided by the application, the formed top pipe tunnel is used for replacing an original station, on one hand, compared with the traditional shield, the cost for manufacturing the station is reduced, on the other hand, compared with the top shield construction method without a conversion well, the construction method does not have requirements on the length of a locomotive group, the difficulty that segments cannot be hoisted due to the fact that the locomotive group is long is eliminated, the construction difficulty is reduced, and the design difficulty of the locomotive group is reduced.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (5)
1. A top shield construction method is characterized by comprising the following steps:
a. planning a construction working section, and dividing the construction working section into a pipe jacking working section and a shield working section;
b. an initial well is arranged at the initial end of a pipe jacking working section, rock breaking equipment with a bell and spigot connected at the rear end is placed in the initial well, a main jacking oil cylinder in the initial well jacks a pipe piece to act on the bell and spigot, and pipe jacking construction is carried out according to a planned pipeline;
c. and (3) arranging a conversion well at the tail end of the pipe jacking working section, namely the initial end of the shield working section, replacing a bell and spigot connected with the rear end of the rock breaking equipment in the conversion well with a tail shield, jacking a conversion ring through a thrust oil cylinder in the tail shield to act on the formed pipe sheets in the pipe jacking tunnel, and performing shield construction according to a planned pipeline.
2. The top shield construction method according to claim 1, wherein: the tail end of the rock breaking equipment and the bell and spigot are detachably and fixedly connected through bolts.
3. The top shield construction method according to claim 1, wherein: the tail end of the rock breaking equipment and the tail shield are detachably and fixedly connected through bolts.
4. The utility model provides a top shield machine which characterized in that: the rock breaking equipment comprises the rock breaking equipment, a socket and a tail shield according to the claims 1-3, wherein the socket or the tail shield is selectively installed at the rear end of the rock breaking equipment according to a construction working section, and the socket and the tail shield are detachably and fixedly connected with the rock breaking equipment through bolts.
5. The top shield machine of claim 4, wherein: the tail shield is internally provided with a propulsion oil cylinder and a conversion ring, the conversion ring is arranged at the rear end of the tail shield and is axially and movably connected with the tail shield, the front end of the conversion ring is abutted against the output end of the propulsion oil cylinder, and the rear end of the conversion ring is abutted against a formed pipe piece in the pipe-jacking tunnel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110409828.2A CN113090271A (en) | 2021-04-16 | 2021-04-16 | Top shield machine and top shield construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110409828.2A CN113090271A (en) | 2021-04-16 | 2021-04-16 | Top shield machine and top shield construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113090271A true CN113090271A (en) | 2021-07-09 |
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ID=76678227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110409828.2A Pending CN113090271A (en) | 2021-04-16 | 2021-04-16 | Top shield machine and top shield construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113090271A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101363320A (en) * | 2007-08-08 | 2009-02-11 | 上海市机械施工有限公司 | Top and guilder two-in-one tunnel boring machine |
| BRPI1005242A2 (en) * | 2010-12-22 | 2013-04-02 | Vale Luiz Gonzaga Do | permeable underground reservoir |
| CN104790960A (en) * | 2015-04-23 | 2015-07-22 | 广州轨道交通建设监理有限公司 | Pipe jacking and shielding conversion equipment and construction method thereof |
| CN112377199A (en) * | 2020-11-11 | 2021-02-19 | 扬州地龙机械有限公司 | Top shield machine |
-
2021
- 2021-04-16 CN CN202110409828.2A patent/CN113090271A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101363320A (en) * | 2007-08-08 | 2009-02-11 | 上海市机械施工有限公司 | Top and guilder two-in-one tunnel boring machine |
| BRPI1005242A2 (en) * | 2010-12-22 | 2013-04-02 | Vale Luiz Gonzaga Do | permeable underground reservoir |
| CN104790960A (en) * | 2015-04-23 | 2015-07-22 | 广州轨道交通建设监理有限公司 | Pipe jacking and shielding conversion equipment and construction method thereof |
| CN112377199A (en) * | 2020-11-11 | 2021-02-19 | 扬州地龙机械有限公司 | Top shield machine |
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