CN113982608B - Shield split initiation construction method for ultra-deep narrow vertical shaft - Google Patents
Shield split initiation construction method for ultra-deep narrow vertical shaft Download PDFInfo
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- CN113982608B CN113982608B CN202111553246.8A CN202111553246A CN113982608B CN 113982608 B CN113982608 B CN 113982608B CN 202111553246 A CN202111553246 A CN 202111553246A CN 113982608 B CN113982608 B CN 113982608B
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- shield
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- vertical shaft
- trailers
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- 238000010276 construction Methods 0.000 title claims abstract description 25
- 230000000977 initiatory effect Effects 0.000 title claims abstract description 16
- 239000002002 slurry Substances 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 9
- 230000005641 tunneling Effects 0.000 claims description 32
- 239000004519 grease Substances 0.000 claims description 14
- 229910000831 Steel Inorganic materials 0.000 claims description 13
- 239000010959 steel Substances 0.000 claims description 13
- 230000001360 synchronised effect Effects 0.000 claims description 10
- 238000002347 injection Methods 0.000 claims description 8
- 239000007924 injection Substances 0.000 claims description 8
- 239000004570 mortar (masonry) Substances 0.000 claims description 7
- 239000010720 hydraulic oil Substances 0.000 claims description 4
- 230000009466 transformation Effects 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000002407 reforming Methods 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 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 discloses a shield split initiation construction method for an ultra-deep narrow vertical shaft, which comprises the following steps: firstly, splicing a main machine of a shield machine and arranging a rear matching system and a flexible pipe of a slurry inlet and outlet pipe under a vertical shaft, arranging rear matching trailers of the shield machine in a place around the vertical shaft, then after the main machine of the shield machine is driven for a certain distance, reforming one of the rear matching trailers, then, connecting the main machine of the shield machine with the main machine of the shield machine, moving the rear matching system and the slurry inlet and outlet pipe to the trailers, finally, after the driving distance of the main machine of the shield machine reaches the length of the whole machine, withdrawing the trailers, sequentially installing all the rear matching trailers including withdrawn trailers, and moving the rear matching system to the corresponding trailer to finish the starting work of the shield machine. The method has the advantages of high space utilization rate, reasonable field and space application, clear time sequence overall arrangement and no influence among working procedures.
Description
Technical Field
The invention relates to the technical field of ultra-deep vertical shaft shield construction, in particular to a split starting construction method for an ultra-deep narrow vertical shaft shield.
Background
In recent years, shield tunneling construction is increasingly applied to underground spaces, in particular to urban subway engineering, hydraulic engineering, urban comprehensive pipe gallery engineering and the like; because the shield originating vertical shaft is located in urban areas, buildings and personnel are dense, the area of the vertical shaft is extremely limited, and the shield originating has to adopt a split mode; and because the shield tunnel needs to pass through important building structures, rivers and lakes and stratum with poor geology, the buried depth of the starting vertical shaft is very large, and the difficulty of split starting of the shield is increased.
The arrangement and the extension of various pipelines are required to be arranged in a narrow space at the bottom of the vertical shaft, the injection and the pipeline extension of various grease pumps are required, the injection and the pipeline extension of the synchronous grouting slurry of the shield and the cross influence of each procedure of the split initiation of the shield are required, so that the space at the bottom of the vertical shaft cannot meet the requirement of the split initiation of the shield more and more.
Disclosure of Invention
The invention aims to provide a split starting construction method for a shield of an ultra-deep narrow vertical shaft, which aims to solve the technical problems of low space utilization rate and mutual cross influence among working procedures in the prior art.
In order to solve the technical problems, the invention adopts the following technical scheme:
the split starting construction method for the ultra-deep narrow vertical shaft shield is designed and comprises the following steps:
(1) The method comprises the steps of assembling a main machine of a shield machine, arranging a rear supporting system and a hose for entering and exiting slurry pipes under a vertical shaft, arranging rear supporting trailers of the shield machine in a place around the vertical shaft, wherein the number of the trailers is 5-8, and starting tunneling of the main machine of the shield machine at a working surface of the vertical shaft after the completion of the operation;
(2) After the shield tunneling machine host machine is tunneled for a certain distance, one of the rear matched trailers is transformed and a mud pipe extension device is installed, the trailer is put into a well after the transformation is completed and is connected with the shield tunneling machine host machine, after the connection is completed, the rear matched system is moved onto the trailer, and a mud pipe hose entering and exiting is connected with the mud pipe extension device;
(3) And after the tunneling distance of the main machine of the shield machine reaches the length of the whole machine, the trailer is withdrawn, all rear matched trailers including the withdrawn trailers are sequentially installed, the rear matched system is moved to the corresponding rear matched trailers, the whole machine of the shield machine is assembled, normal tunneling construction is carried out, and the starting work of the shield machine is completed.
Preferably, in the step (1), the post-supporting system includes a main control room of the shield machine, a synchronous grouting pump system, a tail grease injection system and an EP2 grease injection system.
Preferably, in the step (1), the rear supporting trailers are connected through pipelines, and additional pipelines are additionally arranged according to the well depth so as to meet the connection requirement of the shield tunneling machine host machine assembled under the vertical shaft.
The pipeline and the pipeline comprise a water pipe, a slurry pipe, a hydraulic oil pipe, an inner circulating pipe and a cable.
Preferably, in the step (1), the rear supporting trailers are arranged on two sides of the vertical shaft in a U shape.
Preferably, a 3-layer steel structure platform is welded on the left side and the right side of an originating line of the shield tunneling machine respectively, a P2.1 slurry pump, a synchronous grouting mortar tank and a mortar tank are arranged on the first layer of the right side platform of the line, shield tail grease and EP2 grease extension pipelines are arranged on the second layer, a shield tail grease pump and an EP2 grease pump are arranged on the third layer, a host machine room is arranged on the first layer of the left side platform of the line, and various extension cables are arranged on the second layer.
Preferably, the first layer of the steel structure platform is higher than the bottom surface of the well by 1.5-2.0 m and has a layer height of 3m, the upright posts of the steel structure platform are 56a I-shaped steel, and the platform surface of each layer is a steel plate with the thickness of 1-3 cm.
Preferably, a booster pump connected with the hydraulic pipeline is arranged on the right side platform so as to meet the pressure requirements of various hydraulic pipelines.
Preferably, in the step (2), the distance is greater than or equal to 14.4m, which is a distance that can only accommodate the trailer after being modified.
Preferably, in the step (3), the tunneling distance is not less than 108m, which is a distance capable of accommodating and installing all the rear supporting trailers.
Compared with the prior art, the invention has the main beneficial technical effects that:
1. according to the invention, the matched trailer behind the shield machine is arranged around the vertical shaft, so that the underground space is saved, and the steel structure platforms are arranged at two sides of the tunneling line, so that the underground space is utilized to a great extent, and the shield machine starting work in the ultra-deep narrow vertical shaft can be smoothly completed.
2. According to the invention, one of the rear matched trailers is firstly improved and then is put into the well, the rear matched system is completely rotated onto the trailer, after the tunneling distance reaches the length of the whole machine, the rear matched trailers after the improvement are temporarily withdrawn, all the rear matched trailers including the withdrawn and improved trailers are sequentially installed, and finally the rear matched system is rotated onto the corresponding trailers, so that the starting work of the shield machine is completed, the site and space are reasonably utilized, the time sequence is clear, and the procedures are not affected by each other in a crossing way.
Drawings
FIG. 1 is a schematic diagram of a trailer arrangement for a shield machine in accordance with one embodiment of the present invention.
FIG. 2 is a schematic view of a downhole deployment of an embodiment of the present invention.
In the above figures, 1 is a trailer No. 1, 2 is a trailer No. 2, 3 is a trailer No. 3, 4 is a trailer No. 4, 5 is a trailer No. 5, 6 is a trailer No. 6, 7 is an originating work well, 8 is a slurry outlet pipe, 9 is a slurry inlet pipe, 10 is a cable, 11 is a shield machine host, 12 is a left side structure platform, 13 is a right side structure platform, 14 is a shield machine host room, 15 is a P2.1 pump, 16 is a movable reaction frame, and 17 is a slurry hose.
Detailed Description
The following examples are given to illustrate the invention in detail, but are not intended to limit the scope of the invention in any way.
In the description of the present invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate an orientation or a positional relationship based on that shown in the drawings, merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements to be referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. The present application, as it relates to "first," "second," etc., is used to distinguish similar objects from each other and is not intended to limit a particular order or sequence.
The unit structures and systems referred to in the following examples are all conventional commercial products unless otherwise specified.
Example 1: referring to fig. 1 and 2, 1 shield machine with excavation diameter of 8.64m is used, the outside diameter of a lining segment in a shield section is 8.3m, the inside diameter is 7.5m, the ring width is 1.6m, and the thickness is 0.4m; each ring is composed of 7 segments, wherein the standard blocks are 4 blocks, the connecting blocks are 2 blocks, and the F blocks are 1 block; the lining ring adopts a universal ring, the double-sided wedge-shaped quantity is 46mm, and the number of matched trailers behind a main machine of the shield machine is 6. The split originating construction method comprises the following steps:
(1) First stage of shield tunneling machine initiation
(1) Uphole field arrangement
And sequentially hoisting the 1-6 number trailers matched with the shield tunneling machine host machine to the periphery of the vertical shaft according to the planning, arranging the trailers in a U shape, sequentially assembling the 1-6 number trailers, connecting the trailers, the slurry inlet pipeline, the slurry outlet pipeline, the circulating water pipeline, the hydraulic oil pipeline, the internal circulating pipeline and the cable in place, fixing the trailers by hoops welded with the embedded steel plates in the lining wall of the vertical shaft, and additionally arranging additional lines according to the well depth to realize underground connection.
(2) Downhole field arrangement
The shield tunneling machine main machine is 11m long, the shield tunneling machine main machine is assembled in place in blocks on a down-hole tunneling line, a movable reaction frame is adopted behind the shield tunneling machine main machine, a 3-layer steel structure platform is welded on the left side and the right side of the tunneling line, the first layer of the platform is 1.8m higher than the bottom surface of the well, and the layer height is 3m. The upright post of the steel structure platform adopts 56a I-steel, and the platform surface adopts a steel plate with the thickness of 2 cm; the left platform is provided with a first layer of synchronous grouting mortar tank and grouting pump, a second layer of synchronous grouting mortar tank and grouting pump, a third layer of synchronous grouting pump and an EP2 grease pump; the right side platform 3 layers are all arranged to be disc-shaped and are used for placing cables, and the first layer is used for mixing part of communication wires; the P2.1 slurry outlet pump is arranged at the right front part and is connected with a slurry inlet pipe and a slurry outlet pipe on a main machine of the shield machine through 2 hoses with the length of 18m, the hoses are arranged at the rear part of the main machine of the shield machine in a bending shape, and the hoses gradually extend along with the tunneling of the main machine of the shield machine; a booster pump is additionally arranged on the right side platform and connected with a hydraulic oil pipe so as to meet the pressure requirement of a hydraulic pipeline; the main machine room is arranged at the left rear of the line and is used for controlling the shield tunneling machine to tunnel forwards.
In the step, the starting working well is a shaft which is arranged at a construction starting position selected on a tunnel construction route, only one shaft which can accommodate a main machine of the shield machine can be constructed under the limitation of construction cost and construction area, after the shaft is constructed, the main machine of the shield machine and a rear matching system are lowered into the starting working well through hoisting equipment, and a concrete seat for accommodating the main machine and a movable counterforce frame are arranged in the starting working well, so that the main machine can tunnel forwards in the working face in the starting working well.
(2) Shield tunneling machine initiating second stage
After the main machine of the shield machine is driven for 14.4m, the No. 5 trailer is transformed and a mud pipe extension device is installed, after the transformation is completed, the No. 5 trailer is put into the well to be connected with the main machine of the shield machine, after the connection is completed, the main control chamber of the shield machine, the synchronous grouting pump system, the tail oil injection system and the EP2 oil injection system are moved to the No. 5 trailer, and a mud pipe hose is connected with the mud pipe extension device, so that the purpose of extending a mud pipe into and out of the mud pipe is achieved.
(3) Third stage of shield tunneling machine initiation
After the tunneling distance of the main machine of the shield machine reaches the length of the whole machine, the No. 5 trailer is temporarily withdrawn so as to be convenient for the placement of other trailers, after the No. 5 trailer is withdrawn, the No. 5 trailer is placed between other trailers, the rear matched No. 1-6 trailers including the No. 5 trailer are sequentially installed, the rear matched system is moved to the corresponding trailer, the whole machine assembly of the shield machine is completed, normal tunneling construction is carried out, and the starting work of the shield machine is completed.
While the present invention has been described in detail with reference to the drawings and the embodiments, those skilled in the art will understand that various specific parameters in the embodiments described above may be changed or equivalents may be substituted for related devices and method steps, etc. without departing from the concept of the present invention, so as to form a plurality of specific embodiments, which are common variations of the present invention and will not be described in detail herein.
Claims (9)
1. The split starting construction method for the ultra-deep narrow vertical shaft shield is characterized by comprising the following steps of:
(1) The method comprises the steps of assembling a main machine of a shield machine, arranging a rear matching system and a hose for entering and exiting slurry pipes under a vertical shaft, arranging a rear matching trailer of the shield machine in a field around the vertical shaft, arranging a movable counter-force frame in an originating work well, and arranging a multi-layer structure platform on the left side and the right side of an originating line of the shield machine respectively; wherein, the first layer of one multilayer structure platform is provided with a corresponding P2.1 slurry pump, a synchronous grouting mortar tank and a mortar pump, the second layer is provided with a corresponding shield tail grease and EP2 grease extension pipeline, and the third layer is provided with a corresponding shield tail grease pump and EP2 grease pump; arranging corresponding host chambers on a first layer of another multi-layer structure platform, arranging various extension cables on a second layer and a third layer, wherein the number of the trailers is 5-8, and after the completion, starting tunneling of a host of the shield tunneling machine at a shaft working surface;
(2) After the shield tunneling machine host machine is tunneled for a certain distance, one of the rear matched trailers is transformed, a mud pipe extension device is installed, the trailer is put into the well after the transformation is completed and is connected with the shield tunneling machine host machine, after the connection is completed, the rear matched system is moved onto the trailer, and a mud pipe hose entering and exiting is connected with the mud pipe extension device;
(3) And after the tunneling distance of the main machine of the shield machine reaches the length of the whole machine, the trailer is withdrawn, all rear matched trailers including the withdrawn trailers are sequentially installed, the rear matched system is moved to the corresponding rear matched trailers, the whole machine of the shield machine is assembled, normal tunneling construction is carried out, and the starting work of the shield machine is completed.
2. The split initiation construction method for the ultra-deep narrow vertical shaft shield according to claim 1, wherein in the step (1), the rear supporting system comprises a shield machine main control room, a synchronous grouting pump system, a shield tail grease injection system and an EP2 grease injection system.
3. The method for split initiation of shield construction for ultra-deep narrow vertical shaft according to claim 1, wherein in the step (1), the rear supporting trailers are connected through pipelines, and additional pipelines are additionally arranged according to the well depth so as to meet the connection requirement of a shield machine host machine assembled under the vertical shaft.
4. The ultra-deep narrow vertical shaft shield split initiation construction method according to claim 3, wherein the pipeline and the pipeline comprise a water pipe, a slurry pipe, a hydraulic oil pipe, an inner circulating pipe and a cable.
5. The split initiation construction method for the ultra-deep narrow vertical shaft shield according to claim 1, wherein in the step (1), the rear supporting trailers are arranged on two sides of the vertical shaft in a U shape.
6. The split initiation construction method for the ultra-deep narrow vertical shaft shield according to claim 1, wherein the first layer of the structural platform is 1.5-2.0 m higher than the bottom surface of the well and has a layer height of 3m, the upright posts of the structural platform are 56a I-shaped steel, and the platform surface of each layer is a steel plate with the thickness of 1-3 cm.
7. The split initiation construction method for the ultra-deep narrow vertical shaft shield according to claim 1, wherein a booster pump communicated with the hydraulic pipeline is arranged on a multi-layer structure platform on which the synchronous grouting mortar tank is arranged, so as to meet the pressure requirements of various hydraulic pipelines.
8. The split initiation construction method for the ultra-deep narrow vertical shaft shield according to claim 1, wherein in the step (2), the tunneling distance of a main machine of the shield machine is not less than 14.4m, which is a distance capable of only accommodating the trailer after being modified.
9. The split initiation construction method for the ultra-deep narrow vertical shaft shield according to claim 1, wherein in the step (3), the tunneling distance is not less than 108m, which is a distance capable of accommodating and installing all the rear supporting trailers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111553246.8A CN113982608B (en) | 2021-12-17 | 2021-12-17 | Shield split initiation construction method for ultra-deep narrow vertical shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111553246.8A CN113982608B (en) | 2021-12-17 | 2021-12-17 | Shield split initiation construction method for ultra-deep narrow vertical shaft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113982608A CN113982608A (en) | 2022-01-28 |
| CN113982608B true CN113982608B (en) | 2024-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111553246.8A Active CN113982608B (en) | 2021-12-17 | 2021-12-17 | Shield split initiation construction method for ultra-deep narrow vertical shaft |
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| CN113982608A (en) | 2022-01-28 |
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