CN114278326B - Truss type vertical shield machine and shaft construction method - Google Patents
Truss type vertical shield machine and shaft construction method Download PDFInfo
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- CN114278326B CN114278326B CN202111610953.6A CN202111610953A CN114278326B CN 114278326 B CN114278326 B CN 114278326B CN 202111610953 A CN202111610953 A CN 202111610953A CN 114278326 B CN114278326 B CN 114278326B
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- 238000010276 construction Methods 0.000 title claims abstract description 42
- 230000007246 mechanism Effects 0.000 claims abstract description 102
- 239000002689 soil Substances 0.000 claims abstract description 63
- 230000005540 biological transmission Effects 0.000 claims abstract description 33
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 230000000712 assembly Effects 0.000 claims description 8
- 238000000429 assembly Methods 0.000 claims description 8
- 238000009412 basement excavation Methods 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 12
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
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- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention belongs to the technical field of shield engineering construction, and discloses a truss type vertical shield machine and a shaft construction method. The truss type vertical shield machine comprises a supporting truss, a cutter head mechanism, a soil conveying mechanism, a soil collecting mechanism and a driving mechanism. The cutter head mechanism comprises a cutter head frame, a cutter blade driving device, a transmission rod, a power beam component and a cutter blade. The soil conveying mechanism is arranged at the center of the cutter head frame and can convey soil excavated by the cutter blade to the ground; the soil collecting mechanism is arranged on the transmission rod and can convey soil excavated by the blade to the soil conveying mechanism; the driving mechanism is arranged on the supporting truss and can drive the cutterhead mechanism to move downwards. The truss type vertical shield machine adopts a vertical earth digging mode to carry the excavated earth in the well to the ground, meanwhile, the spliced segments form a permanent enclosure structure, the influence on the surrounding environment is small, the structure is easier to form, the construction period can be effectively shortened, and a large amount of manpower and material resources are saved.
Description
Technical Field
The invention relates to the technical field of shield engineering construction, in particular to a truss type vertical shield machine and a shaft construction method.
Background
With the acceleration of the urban process, various places face the problems of land shortage, living space congestion and the like. To ameliorate this problem, one has turned to the development and utilization of underground spaces. In the aspect of transverse development, shield tunneling technologies for constructing subways, tunnels and the like are established gradually. But in the vertical depth direction, especially a simpler shaft-like structure, the construction mode of structural construction is still carried out along the conventional foundation pit excavation, the construction mode is long in construction period, the influence on the surrounding environment is large, and the measures and the process for the foundation pit excavation and the enclosure often consume a large amount of manpower and material resources.
Disclosure of Invention
The invention aims to provide a truss type vertical shield machine and a shaft construction method, which are used for solving the problems of inconvenient excavation and long construction period of the existing shaft structure.
To achieve the purpose, the invention adopts the following technical scheme:
in one aspect, a truss type vertical shield machine is provided, including:
the support truss is fixedly arranged at the wellhead;
the blade disc mechanism, the blade disc mechanism includes:
the cutter head frame is uniformly distributed around the circumference to form a plurality of blade areas;
the blade driving devices are provided with a plurality of groups, the blade driving devices correspond to the blade areas one by one, and the output end of the blade driving device can move along the radial direction of the cutterhead frame;
the transmission rods are vertically arranged in the same blade area along the arrangement direction of the blade driving device at intervals, the output ends of the blade driving device are fixedly connected with the transmission rods, and the blade driving device can drive the transmission rods in the same blade area to move along the radial direction of the cutterhead frame;
the power beam assemblies are vertically arranged at intervals along the axial direction of the transmission rod and comprise a power beam and an auxiliary beam which can relatively slide; the transmission rod is vertically and fixedly connected with the power beam and can drive the power beam to move;
one end of the blade is rotationally connected with the power beam, the other end of the blade is rotationally connected with the auxiliary beam, and when the blade driving device is started, the power beam moves to drive the blade to rotationally excavate soil;
the soil conveying mechanism is arranged at the center of the cutter disc frame and can convey soil excavated by the cutter blade to the ground;
the soil collecting mechanism is arranged on the transmission rod and can convey soil excavated by the blade to the soil conveying mechanism;
the driving mechanism is arranged on the supporting truss and can drive the cutterhead mechanism to move downwards.
Optionally, the soil conveying mechanism comprises a first conveyor section, a second conveyor section and a belt conveyor, wherein the first conveyor section is fixedly installed on the supporting truss, the second conveyor section is installed at the center of the cutterhead frame, and the first conveyor section can be communicated with the second conveyor section to convey soil excavated by the blades from underground to the belt conveyor.
Optionally, the soil collecting mechanism comprises a plurality of groups of plunger pumps, and the plunger pumps are correspondingly arranged on the transmission rods and can convey soil excavated by the blades to the position of the second conveyor section.
Optionally, the driving mechanism comprises a plurality of driving jacks, and the driving jacks are mounted on the supporting truss and can drive the cutterhead mechanism to move downwards.
On the other hand, a shaft construction method is provided, and the truss type vertical shield machine is used, and comprises the following steps:
s1, driving a plurality of steel pipe piles at a specified position of a wellhead to complete a guide wall structure;
s2, installing a support truss at the wellhead, and installing a plurality of driving jacks, a first conveyor section and a belt conveyor on the support truss;
s3, a cutter disc mechanism is lowered to the wellhead, the first conveyor section and the second conveyor section are connected, a plurality of driving jacks are started, and the driving jacks push the cutter disc mechanism to move downwards for digging soil;
s4, after the cutterhead mechanism moves downwards for a specified distance, the output end of the driving jack is retracted, the first conveyor section is disjointed with the second conveyor section, and duct pieces are installed;
s5, after the duct piece is installed, connecting the first conveyor section with the second conveyor section, enabling the output ends of the driving jacks to be abutted against the duct piece, and pushing the cutter disc mechanism to continue to move downwards for digging soil;
s6, the cutterhead mechanism moves downwards for a designated distance again, the output end of the driving jack is retracted, the first conveyor section is disjointed with the second conveyor section, and the next segment is installed;
step S7, repeating the step S5 and the step S6 until the cutter disc mechanism reaches a preset depth;
s8, removing the first conveyor section and the second conveyor section, driving a uplift pile, and pouring the cutterhead mechanism to form a bottom plate;
and S9, finishing shaft construction.
Optionally, the step S7 further includes injecting water into the hoistway.
Optionally, in the step S8, the cutterhead mechanism is poured in an underwater environment.
Optionally, the step S9 specifically includes: and (5) extracting the water stored in the well, and removing the installation equipment at the wellhead.
Optionally, in the step S2, the support truss is installed on a plurality of the steel pipe piles.
Optionally, in step S4, the cutter disc mechanism and the duct piece are welded and fixed by a welding robot.
The invention has the beneficial effects that:
the truss type vertical shield machine adopts a vertical earth digging mode to convey earth excavated in a well to the ground in real time, and simultaneously, the spliced segments form a permanent enclosure structure, so that the influence on the surrounding environment is small, the structure is easier to form, the construction period can be effectively shortened, and a large amount of manpower and material resources are saved.
The vertical shaft construction method of the invention uses the truss type vertical shield machine, adopts the shield method to excavate the vertical shaft structure, ensures the construction quality, and is more economical and practical compared with the traditional construction mode.
Drawings
Fig. 1 is a schematic structural view of a cutterhead mechanism (hidden driving jack and plunger pump) according to an embodiment of the present invention;
FIG. 2 is an enlarged schematic view of a portion of FIG. 1 at A;
fig. 3 is a schematic structural view of a cutterhead mechanism according to an embodiment of the present invention;
FIG. 4 is an enlarged partial schematic view at B in FIG. 3;
fig. 5 is a schematic structural diagram of a cutterhead mechanism according to an embodiment of the present invention;
FIG. 6 is a schematic illustration of the structural connection of a power beam, auxiliary beam and blade according to an embodiment of the present invention;
FIG. 7 is a schematic diagram showing the structural connection of the power beam, auxiliary beam and blade according to an embodiment of the present invention;
FIG. 8 is a schematic diagram of a first field for shaft construction using a truss type vertical shield machine according to an embodiment of the present invention;
FIG. 9 is a second schematic field diagram of shaft construction using a truss type vertical shield machine according to an embodiment of the present invention;
FIG. 10 is a third schematic field diagram of a vertical shaft construction using a truss type vertical shield machine according to an embodiment of the present invention;
FIG. 11 is a schematic diagram of a site of shaft construction using a truss type vertical shield machine according to an embodiment of the present invention;
fig. 12 is a schematic diagram of a site of shaft construction using a truss type vertical shield machine according to an embodiment of the present invention;
FIG. 13 is a six-point schematic view of a vertical shaft construction using a truss type vertical shield machine according to an embodiment of the present invention;
fig. 14 is a seventh schematic view of a construction site of a vertical shaft using a truss type vertical shield machine according to an embodiment of the present invention;
FIG. 15 is a schematic view of a construction site of a vertical shaft using a truss type vertical shield machine according to an embodiment of the present invention;
fig. 16 is a schematic diagram of a construction site of a vertical shaft using a truss type vertical shield machine according to an embodiment of the present invention;
FIG. 17 is a schematic view of a construction site of a vertical shaft using a truss type vertical shield machine according to an embodiment of the present invention;
FIG. 18 is a diagram eleven of a site for shaft construction using a truss type vertical shield machine according to an embodiment of the present invention;
FIG. 19 is a schematic diagram showing a construction site of a vertical shaft using a truss type vertical shield machine according to an embodiment of the present invention;
FIG. 20 is a thirteenth field schematic diagram of shaft construction using a truss type vertical shield machine according to an embodiment of the present invention;
fig. 21 is a schematic diagram fourteen on site of shaft construction using the truss type vertical shield machine according to the embodiment of the present invention.
In the figure:
1. a support truss;
2. a cutterhead mechanism; 21. a cutterhead frame; 211. a blade region; 22. blade driving means; 23. a transmission rod; 24. a power beam assembly; 241. a power beam; 242. an auxiliary beam; 25. a blade;
3. a soil conveying mechanism; 31. a first conveyor section; 32. a second conveyor section;
4. a soil collecting mechanism; 41. a plunger pump;
5. a driving mechanism; 51. driving a jack;
100. a wellhead; 101. a steel pipe pile; 102. a guide wall structure; 200. a segment; 300. and (5) pulling-resistant piles.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar parts throughout, or parts having like or similar functions. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
In the description of the present invention, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be interpreted broadly, as for example, they may be fixedly connected, or may be detachably connected, or may be electrically connected, or may be directly connected, or may be indirectly connected through an intermediary, or may be in communication with one another in two elements or in an interaction relationship between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the description of the present invention, unless explicitly stated and limited otherwise, a first feature "above" or "below" a second feature may include the first feature and the second feature being in direct contact, or may include the first feature and the second feature not being in direct contact but being in contact by another feature therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "right", etc. orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the invention. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.
The technical scheme of the invention is further described below by the specific embodiments with reference to the accompanying drawings.
As shown in fig. 1-7, the invention provides a truss type vertical shield machine, which comprises a support truss 1, a cutter head mechanism 2, a soil conveying mechanism 3, a soil collecting mechanism 4 and a driving mechanism 5. The support truss 1 is fixedly arranged on the wellhead 100; the cutterhead mechanism 2 comprises a cutterhead frame 21, a blade driving device 22, a transmission rod 23, a power beam assembly 24 and blades 25. The cutter head frame 21 is uniformly divided around the circumferential direction to form a plurality of cutter blade areas 211; the blade driving devices 22 are provided with a plurality of groups, the blade driving devices 22 of the groups are in one-to-one correspondence with the blade areas 211, and the output ends of the blade driving devices 22 move along the radial direction of the cutterhead frame 21; in the same blade area 211, a plurality of groups of transmission rods 23 are vertically arranged at intervals along the arrangement direction of the blade driving device 22, the output end of the blade driving device 22 is fixedly connected with the plurality of groups of transmission rods 23, and the blade driving device 22 can drive the plurality of groups of transmission rods 23 in the same blade area 211 to radially move along the cutterhead frame 21; the power beam assemblies 24 are vertically arranged at intervals along the axial direction of the transmission rod 23, and the power beam assemblies 24 comprise a power beam 241 and an auxiliary beam 242 which can relatively slide; the transmission rod 23 is fixedly connected with the power beam 241 vertically and can drive the power beam 241 to move; one end of the blade 25 is rotatably connected with the power beam 241, and the other end is rotatably connected with the auxiliary beam 242, and when the blade driving device 22 is started, the power beam 241 moves to drive the blade 25 to rotationally excavate soil. The soil conveying mechanism 3 is arranged at the center of the cutter head frame 21 and can convey soil excavated by the cutter blades 25 to the ground; the soil collecting mechanism 4 is arranged on the transmission rod 23, and the soil collecting mechanism 4 can convey soil excavated by the blade 25 to the soil conveying mechanism 3; the driving mechanism 5 is mounted on the support truss 1, and the driving mechanism 5 can drive the cutterhead mechanism 2 to move downwards.
In the present embodiment, the support truss 1 is attached to the wellhead 100 (see fig. 9) and is used as a reaction frame and a carrier. As shown in fig. 1, in this embodiment, the cutterhead frame 21 is divided into twelve fan-shaped blade areas 211 around the circumference, each fan-shaped blade area 211 is correspondingly provided with a blade driving device 22 (refer to fig. 3), the blade driving devices 22 in this embodiment are jacks, are radially arranged along the cutterhead frame 21, are arranged at the center line position of the fan-shaped blade area 211, and output ends of the blade driving devices 22 radially output along the cutterhead frame 21. As shown in fig. 2 and 4, the connection condition of the transmission rod 23 and the power beam assembly 24 in the blade area 211 is that a plurality of groups of transmission rods 23 are vertically arranged at intervals along the arrangement direction of the blade driving device 22, the output end of the blade driving device 22 is fixedly connected with the plurality of groups of transmission rods 23, and when the output end of the blade driving device 22 moves along the radial output of the cutterhead frame 21, the output end of the blade driving device can drive the plurality of groups of transmission rods 23 to move in the same direction with the cutterhead frame 21. The transmission rod 23 is provided with a plurality of groups of power beam assemblies 24 (refer to fig. 2 and 4) at intervals, the setting direction of the power beam assemblies 24 is parallel to the setting direction of the blade driving device 22, the power beam assemblies 24 specifically comprise a power beam 241 and an auxiliary beam 242 which can slide relatively, as shown in fig. 5-7, the power beam 241 and the auxiliary beam 242 are arranged in a stacked mode and can slide relatively, the transmission rod 23 is fixedly connected with the power beam 241 above, one end of the blade 25 is rotationally connected with the power beam 241, the other end of the blade 25 is rotationally connected with the auxiliary beam 242, in an initial state, as shown in fig. 5, the blade 25 vertically hangs down, when the blade driving device 22 is started, the output end of the blade driving device 22 drives the transmission rod 23 to move in the same direction, the transmission rod 23 drives the power beam 241 to move in the same direction, so that relative displacement is generated between the power beam 241 and the auxiliary beam 242, and the blade 25 rotates to dig under the cooperation of the power beam 241 and the auxiliary beam 242, as shown in fig. 6 and 7. It will be appreciated that the auxiliary beam 242 in this embodiment may be a fixed beam or a movable beam (moving in opposite directions to the power beam 241), and the specific arrangement is designed according to the practical situation, but the embodiment is not limited thereto, and the rotation of the blades 25 in each fan-shaped blade area 211 is independently controlled by the blade driving device 22 of the blade area 211, and the blade driving devices 22 between the blade areas 211 operate independently without interference, so as to control the steering of the blades 25 in each blade area 211 according to the practical excavation situation.
Further, after the blade driving device 22 starts the excavation, the driving mechanism 5 drives the cutterhead mechanism 2 to move downwards, the driving mechanism 5 in this embodiment includes a plurality of driving jacks 51 installed on the supporting truss 1, the cutterhead mechanism 2 is driven to move downwards, so that the blade 25 continuously cuts soil, the excavated soil is continuously penetrated along with the cutterhead mechanism 2, the excavated soil is matched with the soil collecting mechanism 4 and the soil conveying mechanism 3 to convey underground excavated soil to the ground, as shown in fig. 4 and 5, the soil collecting mechanism 4 in this embodiment includes a plurality of groups of plunger pumps 41, the plurality of groups of plunger pumps 41 are correspondingly installed on a plurality of groups of transmission rods 23 and are placed near the blade 25, and soil excavated by the blade 25 can be uniformly and intensively conveyed to the soil conveying mechanism 3 in the center of the cutterhead frame 21, and the soil is further output to the ground by the soil conveying mechanism 3.
Optionally, the soil conveying mechanism 3 comprises a first conveyor section 31, a second conveyor section 32 and a belt conveyor, the first conveyor section 31 is fixedly installed on the supporting truss 1, the second conveyor section 32 is installed at the center of the cutterhead frame 21, the first conveyor section 31 can be communicated with the second conveyor section 32, and soil excavated by the blades 25 can be conveyed to the belt conveyor from underground. In this embodiment, referring to fig. 10, the soil conveying mechanism 3 includes a first conveyor segment 31 and a second conveyor segment 32 which can be mutually communicated, the first conveyor segment 31 and the second conveyor segment 32 are spiral vertical conveyors, the first conveyor segment 31 is mounted on the supporting truss 1, the second conveyor segment 32 is mounted at the center of the cutterhead frame 21, when transporting soil, the second conveyor segment 32 is communicated with the first conveyor segment 31, and the soil is conveyed to a ground belt conveyor through the second conveyor segment 32 and the first conveyor segment 31 and further conveyed by the belt conveyor.
In addition, the embodiment also provides a shaft construction method, which uses the truss type vertical shield machine and comprises the following steps:
step S1, a plurality of steel pipe piles 101 are driven into a designated position of a wellhead 100, and a guide wall structure 102 is completed;
in this step, as shown in fig. 8, a plurality of steel pipe piles 101 are driven into a predetermined position of the wellhead 100, the number of steel pipe piles 101 is calculated from the site situation, four steel pipe piles 101 are driven into this embodiment, and the guide wall structure 102 is completed. It is noted that in this step, it is necessary to ensure the thickness of the guide wall structure 102, which is able to bear the load of the earth-transporting earth-moving vehicle at a later stage, preventing the wellhead 100 from collapsing.
Step S2, installing a support truss 1 at a wellhead 100, and installing a plurality of driving jacks 51, a first conveyor segment 31 and a belt conveyor on the support truss 1;
in this step, as shown in fig. 9, a support truss 1 is built at a designated position at a wellhead 100, and a plurality of driving jacks 51, a first conveyor segment 31, a belt conveyor and the like are installed on the support truss 1. Alternatively, the support truss 1 may be mounted on a plurality of steel pipe piles 101, and the steel pipe piles 101 not only play a role in foundation fixing, but also play a role in supporting the support truss 1 as support columns.
Step S3, the cutterhead mechanism 2 is lowered to a wellhead 100, the first conveyor segment 31 is connected with the second conveyor segment 32, a plurality of driving jacks 51 are started, and the driving jacks 51 push the cutterhead mechanism 2 to move down for digging soil;
in this step, as shown in fig. 11, the cutterhead mechanism 2 is lowered to the wellhead 100 by a truss suspension crane, connecting the first conveyor segment 31 and the second conveyor segment 32, ready for digging. After the first conveyor segment 31 and the second conveyor segment 32 are connected, the driving jack 51 is started to push the cutterhead mechanism 2 to move down for digging soil.
Step S4, after the cutter head mechanism 2 moves downwards for a specified distance, the output end of the jack 51 is driven to retract, the first conveyor section 31 is disjointed with the second conveyor section 32, and the duct piece 200 is installed;
in this embodiment, as shown in fig. 12, after the cutter head mechanism 2 moves down by a specified distance, the duct piece 200 is mounted on the cutter head mechanism 2, and in this embodiment, in order to ensure the water stop effect, the cutter head mechanism 2 and the duct piece 200 are welded and fixed by a welding robot.
Step S5, after the duct piece 200 is installed, connecting the first conveyor section 31 with the second conveyor section 32, enabling the output ends of the plurality of driving jacks 51 to abut against the duct piece 200, and pushing the cutter head mechanism 2 to continue to move downwards for digging soil;
in this step, as shown in fig. 13, after the segment 200 is installed, the first conveyor segment 31 and the second conveyor segment 32 are reconnected, and the jack 51 is started to push the segment 200, so that the cutterhead mechanism 2 continues to move down to excavate soil.
Step S6, the cutterhead mechanism 2 moves downwards for a designated distance again, the output end of the jack 51 is driven to retract, the first conveyor section 31 is disjointed with the second conveyor section 32, and the next segment 200 is installed;
in this step, as shown in fig. 14, after the cutterhead mechanism 2 moves down again by a prescribed distance, the first conveyor segment 31 is disjointed from the second conveyor segment 32, and the output end of the driving jack 51 is retracted in preparation for installing the next segment 200.
Step S7, repeating the step S5 and the step S6 until the cutter head mechanism 2 reaches a preset depth;
in this step, as shown in fig. 15 to 18, the above-described step S5 and step S6 are repeatedly performed until the cutterhead mechanism 2 reaches a predetermined depth. Alternatively, when the excavation is carried out to a certain depth, the buoyancy can be resisted by injecting water into the well, and the cutterhead mechanism 2 can perform underwater excavation operation.
S8, removing the first conveyor section 31 and the second conveyor section 32, driving the uplift pile 300, and pouring the cutter head mechanism 2 to form a bottom plate;
in this step, as shown in fig. 19 and 20, after the cutterhead mechanism 2 reaches a predetermined depth, the first conveyor section 31, the second conveyor section 32 and other devices are removed, the uplift pile 300 is driven underwater, and the cutterhead mechanism 2 is poured in an underwater environment to form a bottom plate back cover.
And S9, finishing shaft construction.
In this step, as shown in fig. 21, after the bottom sealing of the uplift pile 300 and the cutterhead mechanism 2 is finished, the water stored in the shaft is pumped out, the installation equipment at the wellhead 100 is removed, and the construction of the shaft structure is completed.
It is to be understood that the above examples of the present invention are provided for clarity of illustration only and are not limiting of the embodiments of the present invention. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the invention are desired to be protected by the following claims.
Claims (10)
1. A truss type vertical shield machine, comprising:
the support truss (1) is fixedly arranged on the wellhead (100);
the cutter head mechanism (2), the cutter head mechanism (2) includes:
the cutter head frame (21), the cutter head frame (21) is equally divided around the circumference to form a plurality of blade areas (211);
the blade driving devices (22), wherein the blade driving devices (22) are provided with a plurality of groups, the plurality of groups of blade driving devices (22) are in one-to-one correspondence with the blade areas (211), and the output end of the blade driving device (22) can move along the radial direction of the cutterhead frame (21);
the transmission rods (23) are vertically arranged in the same blade area (211) at intervals along the arrangement direction of the blade driving device (22), the output ends of the blade driving device (22) are fixedly connected with the plurality of groups of transmission rods (23), and the blade driving device (22) can drive the plurality of groups of transmission rods (23) in the same blade area (211) to move along the radial direction of the cutterhead frame (21);
the power beam assemblies (24) are vertically arranged along the axial direction of the transmission rod (23) at intervals, and the power beam assemblies (24) comprise a power beam (241) and an auxiliary beam (242) which can relatively slide; the transmission rod (23) is vertically and fixedly connected with the power beam (241) and can drive the power beam (241) to move;
the blade (25), one end of the blade (25) is rotationally connected with the power beam (241), the other end of the blade is rotationally connected with the auxiliary beam (242), and when the blade driving device (22) is started, the power beam (241) moves to drive the blade (25) to rotationally excavate soil;
the soil conveying mechanism (3) is arranged at the center of the cutter head frame (21) and can convey soil excavated by the cutter blades (25) to the ground;
the soil collecting mechanism (4) is arranged on the transmission rod (23), and the soil collecting mechanism (4) can convey soil excavated by the blade (25) to the soil conveying mechanism (3);
and the driving mechanism (5) is arranged on the support truss (1), and the driving mechanism (5) can drive the cutterhead mechanism (2) to move downwards.
2. The truss type vertical shield machine according to claim 1, wherein the soil conveying mechanism (3) comprises a first conveyor section (31), a second conveyor section (32) and a belt conveyor, the first conveyor section (31) is fixedly installed on the supporting truss (1), the second conveyor section (32) is installed in the center of the cutterhead frame (21), and the first conveyor section (31) can be communicated with the second conveyor section (32) to convey soil excavated by the blades (25) from underground to the belt conveyor.
3. The truss type vertical shield machine according to claim 2, wherein the soil collecting mechanism (4) comprises a plurality of groups of plunger pumps (41), the plurality of groups of plunger pumps (41) are correspondingly arranged on the plurality of groups of transmission rods (23) and can convey soil excavated by the blades (25) to the second conveyor section (32).
4. A truss type vertical shield machine according to claim 3, wherein the driving mechanism (5) comprises a plurality of driving jacks (51), and a plurality of driving jacks (51) are mounted on the supporting truss (1) and can drive the cutterhead mechanism (2) to move downwards.
5. A shaft construction method, characterized in that the truss type vertical shield machine according to claim 4 is used, comprising the following steps:
s1, driving a plurality of steel pipe piles (101) at a specified position of a wellhead (100) to finish a guide wall structure (102);
s2, installing a support truss (1) at the wellhead (100), and installing a plurality of driving jacks (51), a first conveyor section (31) and a belt conveyor on the support truss (1);
s3, a cutter head mechanism (2) is lowered to the wellhead (100), the first conveyor section (31) and the second conveyor section (32) are connected, a plurality of driving jacks (51) are started, and the driving jacks (51) push the cutter head mechanism (2) to move down for digging soil;
s4, after the cutterhead mechanism (2) moves downwards for a specified distance, the output end of the driving jack (51) is retracted, the first conveyor section (31) is disjointed with the second conveyor section (32), and a duct piece (200) is installed;
step S5, after the duct piece (200) is installed, connecting the first conveyor section (31) with the second conveyor section (32), enabling the output ends of the driving jacks (51) to abut against the duct piece (200), and pushing the cutter head mechanism (2) to continue to move down for soil excavation;
s6, the cutterhead mechanism (2) moves downwards for a designated distance again, the output end of the driving jack (51) is retracted, the first conveyor section (31) is disjointed with the second conveyor section (32), and the next segment (200) is installed;
step S7, repeating the step S5 and the step S6 until the cutter disc mechanism (2) reaches a preset depth;
s8, removing the first conveyor section (31) and the second conveyor section (32), driving a uplift pile (300), and pouring the cutterhead mechanism (2) to form a bottom plate;
and S9, finishing shaft construction.
6. The method according to claim 5, wherein the step S7 further comprises injecting water into the hoistway.
7. The shaft construction method according to claim 6, characterized in that in the step S8 the cutterhead mechanism (2) is poured in an underwater environment.
8. The shaft construction method according to claim 7, wherein the step S9 specifically includes: and (5) extracting the water stored in the well, and removing the installation equipment at the wellhead (100).
9. The shaft construction method according to any one of claims 5 to 8, wherein in step S2, the support truss (1) is mounted on a plurality of the steel pipe piles (101).
10. The shaft construction method according to any one of claims 5 to 8, wherein in the step S4, the cutterhead mechanism (2) and the segment (200) are fixed by welding with a welding robot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111610953.6A CN114278326B (en) | 2021-12-27 | 2021-12-27 | Truss type vertical shield machine and shaft construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| JP2002206391A (en) * | 2001-01-10 | 2002-07-26 | Mitsubishi Heavy Ind Ltd | Tunnel excavator and its recovering method |
| JP2004332487A (en) * | 2003-05-12 | 2004-11-25 | Kawasaki Heavy Ind Ltd | Shaft excavator |
| JP2006207245A (en) * | 2005-01-27 | 2006-08-10 | Shimizu Corp | Shield machine |
| CN108691550A (en) * | 2018-06-29 | 2018-10-23 | 中铁工程装备集团有限公司 | A kind of vertical shaft shield machine constructed upwards by underground and its construction method |
| CN113047843A (en) * | 2020-09-30 | 2021-06-29 | 华东交通大学 | Large-diameter pile or vertical shaft pore-forming soil body excavation device |
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| US3491843A (en) * | 1966-04-01 | 1970-01-27 | Jose Molina Rodriguez | Mechanism for widening galleries applicable to drilling machines |
| JPH0431595A (en) * | 1990-05-29 | 1992-02-03 | Mitsui Constr Co Ltd | Shield excavator |
| JP2001020655A (en) * | 1999-07-09 | 2001-01-23 | Hitachi Constr Mach Co Ltd | Shaft excavating method and shaft excavator |
| JP2002206391A (en) * | 2001-01-10 | 2002-07-26 | Mitsubishi Heavy Ind Ltd | Tunnel excavator and its recovering method |
| JP2004332487A (en) * | 2003-05-12 | 2004-11-25 | Kawasaki Heavy Ind Ltd | Shaft excavator |
| JP2006207245A (en) * | 2005-01-27 | 2006-08-10 | Shimizu Corp | Shield machine |
| CN108691550A (en) * | 2018-06-29 | 2018-10-23 | 中铁工程装备集团有限公司 | A kind of vertical shaft shield machine constructed upwards by underground and its construction method |
| CN113047843A (en) * | 2020-09-30 | 2021-06-29 | 华东交通大学 | Large-diameter pile or vertical shaft pore-forming soil body excavation device |
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| CN114278326A (en) | 2022-04-05 |
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