CN223469262U - Pumped storage power station inclined shaft TBM - Google Patents

Pumped storage power station inclined shaft TBM

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Publication number
CN223469262U
CN223469262U CN202422922526.7U CN202422922526U CN223469262U CN 223469262 U CN223469262 U CN 223469262U CN 202422922526 U CN202422922526 U CN 202422922526U CN 223469262 U CN223469262 U CN 223469262U
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CN
China
Prior art keywords
tbm
inclined shaft
power station
storage power
shield body
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Active
Application number
CN202422922526.7U
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Chinese (zh)
Inventor
吴坚
裴佳锋
钟伟斌
曾志全
朱鹏
王永明
王强
邓渊
陈逸帆
鲍志强
王士伟
任浩
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hangzhou East China Underground Engineering Intelligent Equipment Research Institute Co ltd
PowerChina Huadong Engineering Corp Ltd
Zhejiang Huadong Engineering Construction Management Co Ltd
Original Assignee
Hangzhou East China Underground Engineering Intelligent Equipment Research Institute Co ltd
PowerChina Huadong Engineering Corp Ltd
Zhejiang Huadong Engineering Construction Management Co Ltd
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Application filed by Hangzhou East China Underground Engineering Intelligent Equipment Research Institute Co ltd, PowerChina Huadong Engineering Corp Ltd, Zhejiang Huadong Engineering Construction Management Co Ltd filed Critical Hangzhou East China Underground Engineering Intelligent Equipment Research Institute Co ltd
Priority to CN202422922526.7U priority Critical patent/CN223469262U/en
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    • 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

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  • Excavating Of Shafts Or Tunnels (AREA)

Abstract

本实用新型提供一种抽水蓄能电站斜井TBM，包括盾体，所述盾体前端设有锥形扩挖刀盘，所述盾体内设有主驱动，所述锥形扩挖刀盘经主轴承与主驱动相连接，所述盾体前端、后端周侧分别设有多个前支撑、后支撑；所述前支撑、后支撑之间的盾体上设有推进油缸和主动撑靴，所述抽水蓄能电站斜井TBM在前支撑、后支撑、推进油缸和主动撑靴的配合下蠕动前进。此外，将该抽水蓄能电站斜井TBM应用至导井+TBM扩挖的机械式施工方法中，可以解决钻爆法开挖会存在施工导向和成洞体型不易控制、开挖成洞平整性差、安全性差等问题，摆脱了传统钻爆法开挖，提高成洞质量和减少对围岩的扰动，减少安全隐患，保证抽水蓄能电站中引水斜井安全高效开挖，减少关键线路的工期。

The utility model provides a pumped-storage power station inclined shaft TBM, comprising a shield body, a conical excavation cutterhead provided at the front end of the shield body, a main drive provided inside the shield body, the conical excavation cutterhead connected to the main drive via a main bearing, a plurality of front supports and rear supports provided on the circumference of the front and rear ends of the shield body, respectively; a thrust cylinder and an active support shoe provided on the shield body between the front and rear supports, and the pumped-storage power station inclined shaft TBM creeping forward with the cooperation of the front supports, rear supports, thrust cylinder and active support shoe. In addition, applying the pumped-storage power station inclined shaft TBM to the mechanical construction method of pilot well + TBM excavation can solve the problems of construction guidance and difficult control of the hole shape, poor flatness of the excavated hole, and poor safety in the drilling and blasting method of excavation, get rid of the traditional drilling and blasting method of excavation, improve the hole quality and reduce the disturbance to the surrounding rock, reduce safety hazards, ensure the safe and efficient excavation of the water diversion inclined shaft in the pumped-storage power station, and shorten the construction period of key lines.

Description

Pumped storage power station inclined shaft TBM
Technical Field
The utility model belongs to the technical field of construction of pumped storage power stations, and particularly relates to a pumped storage power station inclined shaft TBM.
Background
Currently, in the construction of a pumped storage power station in China, a drilling and blasting method is generally adopted for the construction of a diversion inclined shaft. However, the drilling and blasting method has a plurality of defects, mainly including difficult control of guiding in the construction process, difficult control of the hole forming type, poor flatness of the excavated hole, general problems of overexcitation and underexcavation, slow construction speed and poor construction safety. The problems severely restrict the safe and efficient construction of the water diversion inclined shaft of the pumped storage power station, so that the water diversion inclined shaft often becomes a key line for project construction, and the risk and the cost of projects are increased.
Compared with the construction of the traditional drilling and blasting method, the tunneling speed of the Tunnel Boring Machine (TBM) can reach 4 to 10 times of that of the conventional drilling and blasting method, and the optimal daily footage can reach 150 meters. TBM construction has the advantages of rapidness, high quality, safety, economy, environmental protection, labor protection and the like. In particular to the high-efficiency and rapid construction capability, and the engineering can be finished in advance, thereby creating economic value in advance. TBM shows remarkable advantages in the aspects of tunneling efficiency, construction period, safety, surrounding rock stability, excavation precision, flatness and the like. For inclined shaft engineering of the existing forming cavity at the lower part, a well reversing drilling machine can be adopted to finish excavation of a small-diameter vertical shaft, and then a hole expanding TBM is utilized to expand and excavate the diversion inclined shaft, so that a free surface is provided for expanding and excavating the diversion inclined shaft, and a slag sliding channel is provided for excavation from top to bottom.
Nevertheless, the research on the pumping energy storage power station water diversion inclined shaft reaming TBM and the construction method thereof is relatively few at present, and the related research is mainly focused on inclined shaft TBM machinery and the construction method thereof. The existing non-blasting rock breaking technology, in particular to the inclined shaft reaming and heading machine technology, represents an important direction of the development of the inclined shaft construction technology. The technology has the advantages of low safety risk, high construction efficiency, small surrounding rock disturbance, high mechanization degree and the like. However, the application of the inclined shaft reaming and tunneling machine is not wide in China, and no successful case of adopting the inclined shaft reaming and tunneling machine to construct a diversion inclined shaft exists at present.
Disclosure of utility model
The utility model aims to provide a pumped storage power station inclined shaft TBM.
For this purpose, the above object of the present utility model is achieved by the following technical solutions:
The pumped storage power station inclined shaft TBM comprises a shield body, wherein a conical expansion cutter disc is arranged at the front end of the shield body, a main drive is arranged in the shield body, and the conical expansion cutter disc is connected with the main drive through a main bearing;
The shield body between the front support and the rear support is provided with a propulsion cylinder and an active support shoe, and the pumped storage power station inclined shaft TBM moves forward in a peristaltic manner under the cooperation of the front support, the rear support, the propulsion cylinder and the active support shoe.
The utility model can also adopt or combine the following technical proposal when adopting the technical proposal:
As an optimal technical scheme, the conical expanding cutter head is provided with a slag scraping component and a disc hob positioned at the inner side of the slag scraping component.
As a preferable technical scheme, the rear end of the shield body is provided with a rear matching trolley for assisting operation.
As a preferable technical scheme, the front end and the rear end of the shield body are connected through a main beam, one end of the main beam is connected with a main drive, and the other end of the main beam is connected with the rear end of the shield body.
According to the preferable technical scheme, a concrete sprayer is arranged near the active supporting shoe, concrete spraying is carried out on the rock wall when the supporting shoe meets a fracture zone or a breaking zone, and the integrity of the rock wall when the supporting shoe is tightly supported is ensured.
According to the preferable technical scheme, an advanced geological detector is arranged near the front support, so that geological conditions of surrounding rock in front of the TBM are detected, TBM tunneling parameters are adjusted according to the geological conditions in front, and TBM tunneling efficiency is ensured.
The utility model provides a pumping and energy storage power station inclined shaft TBM, which realizes peristaltic advance of the pumping and energy storage power station inclined shaft TBM through the cooperation of a front support, a rear support, a propulsion cylinder and an active support shoe, in addition, the pumping and energy storage power station inclined shaft TBM is applied to a mechanical construction method of guide well and TBM expansion, the problems that construction guidance and hole formation type are difficult to control, the flatness of the excavated hole is poor, safety is poor and the like in the process of excavating by a drilling and blasting method can be solved, the traditional drilling and blasting method is eliminated, the hole formation quality is improved, disturbance to surrounding rocks is reduced, potential safety hazards are reduced, safe and efficient excavation of a diversion inclined shaft in a pumped storage power station is guaranteed, and the construction period of a key line is shortened.
Drawings
FIG. 1 is a block diagram of a pumped storage power station inclined shaft TBM provided by the utility model.
Detailed Description
The utility model will be described in further detail with reference to the drawings and specific embodiments.
The utility model provides a pumped storage power station inclined shaft TBM, includes shield body 3, and shield body 3 front end is equipped with toper and expands and digs blade disc 1, is equipped with main drive 4 in the shield body 3, and toper expands and digs blade disc 1 and is connected with main drive 4 through main bearing 2, and shield body 3 front end week side is equipped with a plurality of front supports 5, and shield body rear end week side is equipped with a plurality of back supports 11;
The shield body 3 between the front support 5 and the rear support 11 is provided with a propulsion cylinder 6 and an active supporting shoe 9, and the pumped storage power station inclined shaft TBM moves forward under the cooperation of the front support 5, the rear support 11, the propulsion cylinder 6 and the active supporting shoe 9.
The conical expanding cutter head 1 is provided with a slag scraping component 101 and a disc hob 102 positioned on the inner side of the slag scraping component 101. The conical expansion cutter head 1 is a conical cutter head, and adopts a heavy structure, and the conical expansion cutter head 1 is connected with the main bearing 2. The conical expanding cutter head is provided with a 17-inch (432 mm) disc-shaped center hob, a 19-inch (483 mm) single-edge front hob and an edge hob, all the hobs are back-mounted, the hobs are in a wedge locking mounting mode, and the load can be uniformly transferred to the cutter head and the cutter head.
The rear end of the shield body 3 is provided with a rear matching trolley 10.
The front end and the rear end of the shield body 3 are connected through a main beam 7, one end of the main beam 7 is connected with the main drive 4, and the other end of the main beam 7 is connected with the rear end of the shield body 3.
A concrete sprayer 8 is arranged near the active supporting shoe 9, and concrete spraying is carried out on the rock wall when the supporting shoe encounters a fracture zone or a broken zone, so that the integrity of the rock wall when the supporting shoe is tightly supported is ensured. And an advanced geological detector 12 is arranged near the front support 5 to detect geological conditions of surrounding rocks in front of the TBM, and TBM tunneling parameters are adjusted according to the geological conditions in front to ensure TBM tunneling efficiency.
Specifically, the pumped storage power station inclined shaft TBM can be applied to the following expansion and excavation mechanized construction method, comprising the following steps,
The method comprises the following steps of S1, excavating a water diversion upper flat hole and constructing a support, excavating an assembly cavity and an originating well downwards from the water diversion upper flat hole, constructing a locking port and a ring beam foundation at an originating well head, arranging a portal crane system above the assembly cavity for hoisting mechanical equipment, excavating downwards by adopting a breaking hammer and a long arm excavator to form an originating well with the depth of 10m and the diameter of 8m, and forming an originating platform at the lower part of the originating well;
S2, installing a directional drilling machine on the starting platform, drilling a directional hole with the diameter of phi 410mm from top to bottom along the central axis of the diversion inclined shaft by adopting the directional drilling machine so as to meet the diameter of a drill rod required by construction of the anti-well drilling machine, installing a wireless inclinometer while drilling after the directional hole exceeds 30m, performing directional control on a drilling track under the guidance of measurement parameters of the directional drilling machine, and improving the precision of the directional hole until the directional hole penetrates into a flat hole in the diversion, completing construction of the directional hole, removing a directional drill bit and matched inclinometry and correction equipment, and removing the directional drilling machine and auxiliary equipment by utilizing a gantry crane system;
S3, installing a main machine of the well reversing drilling machine and a main pump station and an auxiliary pump station on an originating platform, adopting a well reversing drilling machine to conduct phi 2m well guiding construction from bottom to top along a phi 410mm guide hole, lowering a well reversing drilling rod to the lower end of a diversion inclined shaft along the phi 410mm guide hole, conveying a well reversing drilling reamer bit with the diameter phi 2m to the lower end of the diversion inclined shaft through a construction supporting hole and a diversion lower flat hole, connecting the well reversing drilling reamer bit with the well reversing drilling rod, and then slowly lifting the reaming reamer bit to conduct reaming construction from bottom to top;
S4, optimizing the design form of the originally designed two-stage inclined shaft into a one-stage inclined shaft for facilitating excavation and tunneling of TBM equipment, wherein the hole diameter is unified to be 6.5m.
Assembling an inclined shaft reaming and tunneling machine in an originating well, and entering a field debugging stage after TBM assembly is completed, wherein a hydraulic system, an electric system and a PLC control system are mainly debugged;
S41, the TBM is assembled in an assembly cavity, the assembly cavity is arranged on the water diversion upper flat hole section, and the cross section of the supported urban gate hole type enlarged hole is 15m (width) x 20m (height) x 40m (length). A horseshoe-shaped stepping starting hole with the length of 37m is arranged in front of the assembly hole, and the starting hole section is 37m multiplied by 6m multiplied by 8.2m;
S42, the TBM equipment comprises a conical cutter head 1, a shield body 3, a main drive 4, a propulsion cylinder 6 and a rear matched trolley 10. The TBM is assembled integrally in a front to back order. The conical cutter head 1 is assembled in a blocking way, and the two unequal half blocks are assembled together. The conical expanding cutter head 1 comprises a slag scraping component 101 and a disc cutter 102, the conical expanding cutter head 1 is of a conical cutter head, a heavy structure is adopted, the conical expanding cutter head 1 is connected with a main bearing 2, a 17-inch (432 mm) disc-shaped center cutter, a 19-inch (483 mm) single-edge front cutter and an edge cutter are arranged on the conical expanding cutter head 1, all the cutters are in back-mounted type, and the loaded cutters can be uniformly transmitted to the cutter seat and the cutter head by adopting a wedge locking mounting mode;
S43, the rear end of the main bearing 2 is connected with the main drive 4, and the main drive 4 drives the conical cutter head to crush and destroy rock through the main bearing 2. The main drive 4 is connected with the main beam 7, the propulsion cylinder 6 is positioned on the main beam 7, and the TBM is pushed forward by the shrinkage of the propulsion cylinder 6;
S44, after the TBM is assembled, entering a field debugging stage, and mainly debugging the hydraulic system, the electrical system and the PLC control system.
S5, TBM excavates and digs according to the 7.2m of the designed excavation section and 39 degree climbing requirement, excavated stone slag slides into the bottom of the inclined shaft through the guide shaft, and the bottom of the guide shaft is deslagged by adopting a dump truck;
S6, the active supporting shoes 9 and the rear supporting shoes 11 are tightly supported on the wall of the tunnel in the process of breaking the rock of the TBM, and in this stage, the whole system is jointly supported by the active supporting shoes 9 and the rear supporting shoes 11 of the TBM;
S7, in the propelling process, a propelling oil cylinder 6 on a main beam 7 starts to stretch to push a TBM to tunnel forwards, a main drive 4 drives a conical expanding and excavating cutter head 1 to rotate, the conical expanding and excavating cutter head 1 rotates to drive a disc cutter 102 to extrude and shear front rock, and broken rock is discharged into a pilot tunnel by stirring forwards and backwards through a slag scraping component 101;
S8, after a tunneling stroke is finished, the TBM starts to change steps, the active supporting shoe 9 and the rear support 11 shrink, the thrust cylinder 6 starts to shrink, the TBM is driven to move forwards, the supporting force of the front support 5 is increased, and at the stage, the whole TBM is supported by the front supporting shoe 5;
S9, finishing the step change process, and propping up the tunnel wall again by the TBM active prop 9 and the rear support 11 for the next cycle tunneling;
S10, excavating a diversion inclined shaft, namely, assembling a TBM in a flat hole assembly cavity on the 1# diversion inclined shaft, firstly completing construction of the 1# diversion inclined shaft, after completing tunneling construction of the 1# diversion inclined shaft, completing a TBM disassembling machine in a 1# diversion inclined shaft disassembly cavity, transferring a 1# construction support hole into a 2# diversion inclined shaft for assembly and tunneling, wherein the TBM assembly, tunneling and disassembly processes of the two diversion inclined shafts are the same, and the construction group only introduces the assembly, tunneling and disassembly construction in the 1# diversion inclined shaft in detail.
The above detailed description is intended to illustrate the present utility model by way of example only and not to limit the utility model to the particular embodiments disclosed, but to limit the utility model to the precise embodiments disclosed, and any modifications, equivalents, improvements, etc. that fall within the spirit and scope of the utility model as defined by the appended claims.

Claims (6)

1.一种抽水蓄能电站斜井TBM，包括盾体(3)，所述盾体(3)前端设有锥形扩挖刀盘(1)，所述盾体(3)内设有主驱动(4)，所述锥形扩挖刀盘(1)经主轴承(2)与主驱动(4)相连接，其特征在于：所述盾体(3)前端周侧设有多个前支撑(5)，所述盾体后端周侧设有多个后支撑(11)；1. A TBM for inclined shafts of a pumped storage power station, comprising a shield (3), a conical excavation cutterhead (1) provided at the front end of the shield (3), a main drive (4) provided in the shield (3), the conical excavation cutterhead (1) being connected to the main drive (4) via a main bearing (2), and characterized in that a plurality of front supports (5) are provided around the front end of the shield (3), and a plurality of rear supports (11) are provided around the rear end of the shield; 所述前支撑(5)、后支撑(11)之间的盾体(3)上设有推进油缸(6)和主动撑靴(9)，所述抽水蓄能电站斜井TBM在前支撑(5)、后支撑(11)、推进油缸(6)和主动撑靴(9)的配合下蠕动前进。A propulsion oil cylinder (6) and an active support shoe (9) are provided on the shield body (3) between the front support (5) and the rear support (11). The TBM of the inclined shaft of the pumped storage power station creeps forward under the cooperation of the front support (5), the rear support (11), the propulsion oil cylinder (6) and the active support shoe (9). 2.根据权利要求1所述的抽水蓄能电站斜井TBM，其特征在于：所述锥形扩挖刀盘(1)上设有刮渣部件(101)和处于刮渣部件(101)内侧的盘形滚刀(102)。2. The inclined shaft TBM of a pumped storage power station according to claim 1 is characterized in that: the conical expansion cutterhead (1) is provided with a scraping component (101) and a disc-shaped roller (102) located inside the scraping component (101). 3.根据权利要求1所述的抽水蓄能电站斜井TBM，其特征在于：所述盾体(3)的后端设有后配套台车(10)。3. The inclined shaft TBM of a pumped storage power station according to claim 1, characterized in that a rear supporting trolley (10) is provided at the rear end of the shield body (3). 4.根据权利要求1所述的抽水蓄能电站斜井TBM，其特征在于：所述盾体(3)前端与后端经主梁(7)相连接，所述主梁(7)的一端与主驱动(4)相连接，所述主梁(7)的另一端连接盾体(3)的后端。4. The inclined shaft TBM of a pumped storage power station according to claim 1 is characterized in that the front end and the rear end of the shield body (3) are connected via a main beam (7), one end of the main beam (7) is connected to the main drive (4), and the other end of the main beam (7) is connected to the rear end of the shield body (3). 5.根据权利要求1所述的抽水蓄能电站斜井TBM，其特征在于：所述主动撑靴(9)的附近设有混凝土喷射机(8)。5. The inclined shaft TBM of a pumped storage power station according to claim 1, characterized in that a concrete spraying machine (8) is provided near the active gripper shoe (9). 6.根据权利要求1所述的抽水蓄能电站斜井TBM，其特征在于：所述前支撑(5)的附近设有超前地质探测仪(12)。6. The inclined shaft TBM of a pumped storage power station according to claim 1, characterized in that an advanced geological detector (12) is provided near the front support (5).
CN202422922526.7U 2024-11-28 2024-11-28 Pumped storage power station inclined shaft TBM Active CN223469262U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202422922526.7U CN223469262U (en) 2024-11-28 2024-11-28 Pumped storage power station inclined shaft TBM

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202422922526.7U CN223469262U (en) 2024-11-28 2024-11-28 Pumped storage power station inclined shaft TBM

Publications (1)

Publication Number Publication Date
CN223469262U true CN223469262U (en) 2025-10-24

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Country Link
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