CN117189148A - TBM tunneling machine based on filling type supporting shoe adjustment - Google Patents

Abstract

The application relates to the technical field of engineering machinery, in particular to a TBM tunneling machine capable of adjusting supporting shoes based on filling. The TBM tunneling machine comprises a shield body and a main beam arranged on one side of the shield body, wherein a rear support is arranged at the bottom of one end of the main beam, pushing oil cylinders are rotatably arranged on two sides of the main beam, one end of each pushing oil cylinder is connected with an adjustable supporting shoe, a movable cavity is formed in the adjustable supporting shoe, a material conveying mechanism is arranged at the bottom of the main beam and used for conveying broken stone generated in the tunneling process of the shield body into the adjustable supporting shoe and filling the movable cavity, and the TBM tunneling machine is used for carrying out supporting shoe adjustment based on filling.

Description

TBM tunneling machine based on filling type supporting shoe adjustment

Technical Field

The application relates to the technical field of engineering machinery, in particular to a TBM tunneling machine capable of adjusting supporting shoes based on filling.

Background

TBM (full section tunnel based on filling type TBM heading machine) equipment manufacturing and tunneling technology with shoe supporting adjustment has been developed for over half a century to become a mature construction method for tunnel (road) construction. Since TBM is introduced into the engineering of the natural bridge hydropower station for tunnel construction for the first time in 1985, the technology is applied to underground engineering construction in the fields of traffic, energy, national defense and the like in succession in China. The mature TBM heading machine for carrying out supporting shoe adjustment based on filling type hard rock comprises the following main machine types: open type, double shields, single shields/earth pressure dual mode TBM, open type + steel pipe sheet, double shields + screw conveyor etc.

The open TBM is a TBM tunneling machine for supporting shoe adjustment based on filling type full-section tunnels adopting anchor spraying support, and the main machine part of the TBM is generally composed of a cutter head, a main drive, a shield, a main beam, a saddle frame and supporting shoes, and the supporting shoes are used for supporting friction force generated on the rock wall of the tunnel to be excavated to provide the propelling force for tunneling the cutter head.

For example, chinese patent publication No. CN116291516a discloses an open TBM, which includes a main beam, a cutterhead, a driving system, a propulsion system, and a support system; the two ends of the main beam are respectively a front end and a rear end, and the direction of the rear end towards the front end is the tunneling direction of the open TBM; the driving system is connected between the front end of the main beam and the cutterhead and is configured to drive the cutterhead to rotate; the propulsion system comprises a supporting shoe support, a main pushing hydraulic cylinder support seat and a plurality of main pushing hydraulic cylinders, wherein the supporting shoe support is movably connected to the main beam, the main pushing hydraulic cylinder support seat is arranged on the main beam and positioned at the rear of the supporting shoe support, one end of the main pushing hydraulic cylinder is connected to the main pushing hydraulic cylinder support seat, and the other end of the main pushing hydraulic cylinder is connected to the supporting shoe support; the support system is arranged on the upper side of the main beam and in front of the support shoe support. The open TBM provided by the application reserves enough movable space near the front support system so as to carry out support operation and improve the support efficiency.

In the patent, the open TBM has a shorter shield body, and is suitable for excavating surrounding rock caverns with complete integrity and better self-stabilization capability. Because the excavation and the supporting are carried out separately, enough space is provided near the TBM cutterhead for installing temporary and initial supporting equipment such as a steel arch installer, a jumbolter, an advanced drilling machine, a concrete spraying equipment and the like, and the auxiliary equipment can timely and effectively support unstable surrounding rock by applying the new Otto principle.

But when encountering geological differences, the supporting shoes on two sides of the open TBM are easy to sink into the side wall of the tunnel, so that the supporting shoes cannot be supported on the side wall of the tunnel and cannot provide counter force for equipment, and the tunneling speed is influenced.

Disclosure of Invention

The application aims to provide a TBM tunneling machine capable of adjusting supporting shoes based on filling, which aims to solve the problems that when an open TBM encounters geological differences, the supporting shoes on two sides of the TBM are easy to sink into the side wall of a tunnel, so that the supporting shoes cannot be supported on the side wall of the tunnel, counter force cannot be provided for equipment, and tunneling speed is influenced.

For realizing the above-mentioned purpose, provide a TBM entry driving machine that props boots and adjust based on filling, including the shield body and set up the girder in shield body one side, the bottom of girder one end is provided with back support, the both sides of girder all rotate and are provided with the thrust cylinder, the one end of thrust cylinder is connected with adjustable and props boots, adjustable prop the inside movable chamber that has of boots, the bottom of girder is provided with the feeding mechanism, feeding mechanism is used for carrying the rubble that produces in the shield body tunneling process to adjustable prop the boots in and to the inside packing of movable chamber, under the effect that rubble was filled, adjustable prop the boots through the mode increase of extension adjustable prop the area of contact of boots and tunnel wall.

As a further improvement of the technical scheme, the shield body comprises a shield shell, a cutter head is arranged on one side of the shield shell, a connecting block fixedly connected with the main beam is arranged on the other side of the shield shell, a slag receiving hopper is arranged in the shield shell in a rotating mode, a primary conveying belt is further arranged in the slag receiving hopper, one end of the primary conveying belt penetrates into the main beam, and a secondary conveying belt is arranged in the main beam in a rotating mode and used for receiving broken stones conveyed by the primary conveying belt.

As a further improvement of the technical scheme, a material guide plate is arranged in the main beam, one end of the material guide plate is positioned at a material conveying position between the primary conveyor belt and the secondary conveyor belt, and the other end of the material guide plate is positioned above the material conveying mechanism.

As a further improvement of the technical scheme, the material conveying mechanism comprises a first material receiving hopper fixedly arranged at the bottom of the connecting block, one side of the first material receiving hopper is communicated with a material conveying pipe, a first spiral plate is rotatably arranged in the material conveying pipe, and one end of the first spiral plate is provided with a driving piece for driving the first spiral plate to rotate.

As a further improvement of the technical scheme, the adjustable support shoe comprises a main shoe body and an auxiliary shoe body, the main shoe body is fixedly arranged at one end of the pushing oil cylinder, the movable cavity is formed in the main shoe body, one end of the auxiliary shoe body penetrates into the movable cavity and is slidably arranged in the main shoe body through the movable cavity, one side of the main shoe body is connected with a connecting pipe, the bottom of the movable cavity is provided with a discharge port, the inside of the movable cavity is provided with a partition plate, a reset spring is arranged above the partition plate, one end of the reset spring is connected with the inner wall of the main shoe body, and the other end of the reset spring is connected with the side wall of the auxiliary shoe body.

As a further improvement of the technical scheme, the connecting pipe is made of hard materials, and is communicated with one end of the conveying pipe after the main boot body is driven by the propulsion oil cylinder to rotate and reset.

As a further improvement of the technical scheme, a second receiving hopper is fixedly arranged at the bottom of the main beam, the second receiving hopper is located below the discharge hole, a mounting tube is arranged in the second receiving hopper, one end of the mounting tube penetrates into the main beam and is located above the secondary conveyor belt, a second spiral plate is rotatably arranged in the mounting tube, and one end of the second spiral plate is connected with a driving piece for driving the second spiral plate to rotate.

As a further improvement of the technical scheme, the top of the second receiving hopper is longitudinally provided with a dredging rod in a sliding manner, a connecting spring which is elastically connected with the bottom of the dredging rod and the bottom of the second receiving hopper is arranged between the bottom of the dredging rod and the bottom of the second receiving hopper, and a plurality of inclined rods are fixedly arranged at the top end of the dredging rod.

As a further improvement of the technical scheme, a side plate is arranged in the movable cavity, one side of the side plate is fixedly connected with a plurality of anchor posts, and one end of each anchor post penetrates through the anchor post in a sliding mode.

As a further improvement of the technical scheme, the connecting pipe is made of flexible materials, one end of the connecting pipe is fixedly connected with one end of the conveying pipe, the anchor post is of a tubular structure, and the anchor post is communicated with the side plate.

Compared with the prior art, the application has the beneficial effects that:

1. in this TBM entry driving machine based on fill formula is propped boots and is adjusted, through the cooperation between conveying mechanism, main boots body and the vice boots body three, can reach and utilize the rubble that produces when tunneling for the rubble promotes vice boots body and stretches out when filling up the movable chamber, has increased the area of contact of main boots body and tunnel wall, thereby reduces the probability that main boots body falls into in the tunnel wall.

2. In this TBM entry driving machine based on fill formula is propped boots and is adjusted, vice boots body is stretched out the back, and the activity intracavity portion is filled by the rubble, improves the firm degree of main boots body for main boots body when contacting with tunnel wall, avoids appearing deformation because of there is the activity chamber by the extrusion of tunnel wall.

3. In this TBM entry driving machine based on fill formula is propped boots and is adjusted, when the rubble is in the activity intracavity and the tunnel wall is harder, the main boot body pastes the rubble of tunnel wall in can passing through anchor post and curb plate to the activity intracavity and extrudees, makes the rubble be called little stone by the crushing to follow-up processing flow to the rubble has been reduced.

4. In this TBM entry driving machine based on fill formula is propped boots and is adjusted, through being connected the continuous of connecting pipe and conveying pipeline, make the rubble constantly carry to the activity intracavity, when the tunnel wall is softer, the anchor post stretches into in the tunnel wall, then under the cooperation that first screw plate continuously rotated, the partial stone in the activity intracavity is crowded into in the anchor post, then in injecting the tunnel wall through the anchor post, for the tunnel wall provides stability.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present application;

FIG. 2 is a schematic cross-sectional view of the shield body of the present application;

FIG. 3 is a schematic view of a feeding mechanism according to the present application;

FIG. 4 is a schematic cross-sectional view of an adjustable stay shoe of the present application;

FIG. 5 is a schematic view of a side plate according to the present application;

FIG. 6 is an enlarged schematic view of the structure at A of the second receiving hopper of FIG. 5 according to the present application;

FIG. 7 is a schematic view of the working state of the adjustable stay shoe of the present application;

fig. 8 is a schematic structural view of the connecting block of the present application.

The meaning of each reference sign in the figure is:

100. a shield body; 101. a main beam; 102. a connecting bridge; 103. a material lifting system; 104. a spray mixing system; 105. a thrust cylinder; 106. a rear support; 107. a connecting block; 108. a hydraulic rod; 109. a steel pipe sheet;

110. a shield shell; 111. a cutterhead; 112. a slag receiving hopper; 113. a primary conveyor belt; 114. a secondary conveyor belt; 120. a material guide plate; 121. a filter plate; 130. a material conveying mechanism; 131. a first receiving hopper; 132. a material conveying pipe; 133. a first spiral plate; 134. a driving motor;

200. an adjustable support shoe; 210. a main boot body; 211. a movable cavity; 212. an auxiliary boot body; 213. a connecting pipe; 214. a discharge port; 215. a partition plate; 216. a return spring; 220. a side plate; 221. an anchor post;

230. a second receiving hopper; 231. installing a pipe; 232. a second spiral plate; 233. installing a motor; 234. a dredging rod; 235. a connecting spring; 236. and (5) a diagonal rod.

Detailed Description

The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the apparatus or elements 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 application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

Referring to fig. 1 and 2, a TBM heading machine for adjusting a supporting shoe based on filling is provided, including a shield body 100 and a main beam 101 disposed at one side of the shield body 100, a rear support 106 is disposed at the bottom of one end of the main beam 101, a thrust cylinder 105 is disposed at two sides of the main beam 101 in a rotating manner, one end of the thrust cylinder 105 is connected with an adjustable supporting shoe 200, a movable cavity 211 is disposed in the adjustable supporting shoe 200, a material conveying mechanism 130 is disposed at the bottom of the main beam 101, the material conveying mechanism 130 is used for conveying broken stone generated in the heading process of the shield body 100 into the adjustable supporting shoe 200 and filling the movable cavity 211, and under the action of broken stone filling, the contact area between the adjustable supporting shoe 200 and a tunnel wall is increased by the adjustable supporting shoe 200 in an extending manner.

It should be noted that the main improvement point of the present application is that the adjustable support shoe 200 and the part of filling the crushed stone into the adjustable support shoe 200 are all the same or similar to the structure of the TBM heading machine based on filling type support shoe adjustment used in the existing market, and the working principle is the same or similar, so that the parts and working principle not described in the present application can refer to the TBM heading machine based on filling type support shoe adjustment in the market. For example, a connecting bridge 102 is arranged at the rear end of the main beam 101, and a material lifting system 103 and a spraying and mixing system 104 are connected at the rear end of the connecting bridge 102; for another example, the thrust cylinder 105, which will be described later, may rotate to bring the adjustable support shoe 200 into engagement with the tunnel wall and then push the shield body 100 forward. These parts are the same as the structure of the prior TBM tunneling machine based on filling type supporting shoe adjustment, and the principle is the same.

Next, embodiment 1 of the present application is shown by fig. 1 to 6. Firstly, as shown in fig. 2, the shield body 100 includes a shield shell 110, one side of the shield shell 110 is provided with a cutter 111, and the other side is provided with a connecting block 107 for fixedly connecting with the main beam 101; secondly, the inside rotation of shield shell 110 is provided with and connects the sediment fill 112, still is provided with one-level conveyer belt 113 in the sediment fill 112, and one end of one-level conveyer belt 113 penetrates in the girder 101, and the inside rotation of girder 101 is provided with second grade conveyer belt 114 for receive the rubble of one-level conveyer belt 113 conveying.

Next, in order to receive part of crushed stone, a guide plate 120 is disposed inside the main beam 101, one end of the guide plate 120 is located at a material transfer position between the primary conveyor belt 113 and the secondary conveyor belt 114, and the other end is located above the material conveying mechanism 130. Specifically, the first conveyor belt 113 and the second conveyor belt 114 have a height difference, and the crushed stone on the first conveyor belt 113 can fall on the second conveyor belt 114 after being separated from the first conveyor belt 113, and then is continuously conveyed by the second conveyor belt 114. In this process, one end of the guide plate 120 is located between the primary conveyor 113 and the secondary conveyor 114, so that a part of crushed stone can fall on the guide plate 120. In order to avoid that larger crushed stones enter the material conveying mechanism 130 to block the material conveying mechanism 130, a filter plate 121 is further arranged at one end of the material guiding plate 120, which is close to the primary conveyor belt 113, and is used for filtering some larger crushed stones.

When the crushed stone is fed into the movable chamber 211 via the feeding device 130, it is not only necessary to fill the movable chamber 211 but also to have a moving driving pressure, so that the adjustable support shoe 200 can be extended. Thus, in the present application, the driving is preferably performed in a spiral manner. Next, a specific structure of the feeding mechanism 130 is disclosed, as shown in fig. 3: the conveying mechanism 130 comprises a first receiving hopper 131 fixedly arranged at the bottom of the connecting block 107, one side of the first receiving hopper 131 is communicated with a conveying pipe 132, a first spiral plate 133 is rotationally arranged in the conveying pipe 132, one end of the first spiral plate 133 is provided with a driving motor 134 for driving the first spiral plate 133 to rotate, and the driving motor 134 is fixedly arranged on the side wall of the first receiving hopper 131.

As shown in fig. 4, the adjustable supporting shoe 200 includes a main shoe body 210 and an auxiliary shoe body 212, the main shoe body 210 is fixedly disposed at one end of the pushing cylinder 105, the movable cavity 211 is disposed inside the main shoe body 210, one end of the auxiliary shoe body 212 penetrates into the movable cavity 211 and is slidably disposed inside the main shoe body 210 through the movable cavity 211, one side of the main shoe body 210 is connected with a connecting pipe 213, after the pushing cylinder 105 drives the main shoe body 210 to rotate and reset, the connecting pipe 213 is communicated with one end of the conveying pipe 132, and a discharge outlet 214 is disposed at the bottom of the movable cavity 211. In this embodiment, the connecting tube 213 is preferably made of hard material, so that a stable connection between the connecting tube 213 and the delivery tube 132 is maintained, and broken stone is prevented from leaking out from the connection between the delivery tube 132 and the connecting tube 213. In addition, when the crushed stone in the movable cavity 211 flows out, the auxiliary shoe 212 is required to be restored to the inside of the main shoe 210 to increase the hardness of the main shoe 210, so that a partition plate 215 is arranged in the movable cavity 211, a restoring spring 216 is arranged above the partition plate 215, one end of the restoring spring 216 is connected with the inner wall of the main shoe 210, and the other end is connected with the side wall of the auxiliary shoe 212.

Working principle:

when the tunnel wall is soft, the main shoe 210 is reset to the side wall of the main beam 101, and the connecting pipe 213 is communicated with the feed conveying pipe 132. Then, the power supply of the driving motor 134 is turned on, so that the output shaft of the driving motor 134 drives the first spiral plate 133 to rotate, the crushed stone in the first receiving hopper 131 is pushed into the conveying pipe 132 after the first spiral plate 133 rotates, and the conveying pipe 132 is communicated with the connecting pipe 213 at the moment, so that the crushed stone enters the movable cavity 211 through the connecting pipe 213 and fills the movable cavity 211, and in the filling process, the first-stage conveying belt 113 continuously conveys the crushed stone to the material guide plate 120, so that the conveying mechanism 130 continuously enters the conveying pipe 132, and the crushed stone is extruded into the movable cavity 211, and when the crushed stone in the movable cavity 211 is increased, the crushed stone pushes the auxiliary shoe 212 to move, so that the auxiliary shoe 212 extends to prolong the length of the main shoe 210, thereby increasing the contact area with the tunnel wall and reducing the phenomenon of dishing.

Then, as shown in fig. 7, the rotated adjustable support shoe 200 can be attached to the tunnel wall, and then the extension and retraction of the thrust cylinder 105 is controlled to drive the shield body 100, so that the shield body 100 is advanced. The rest working principles are consistent with the existing TBM tunneling machine based on filling type supporting shoe adjustment.

When the movable cavity 211 is filled with the crushed stone, the crushed stone is extruded into the movable cavity 211, so that friction resistance is formed between a plurality of adjacent crushed stones, and the crushed stone can overcome the gravity to avoid falling. So that crushed stone is not discharged through the discharge port 214 and the connection pipe 213. When the waste is required to be discharged, the pushing cylinder 105 can be controlled to drive the main boot body 210 to frequently move, the friction resistance between a plurality of adjacent broken stones is overcome by acting force generated by the movement, so that the adjacent broken stones are scattered and fall off along with the waste, and then the waste is discharged through the discharge port 214 and the connecting pipe 213.

That is, by the cooperation of the material conveying mechanism 130, the main boot 210 and the auxiliary boot 212, the broken stone generated during tunneling can be utilized, so that the broken stone fills the movable cavity 211 and pushes the auxiliary boot 212 to extend out, the contact area between the main boot 210 and the tunnel wall is increased, and the probability that the main boot 210 falls into the tunnel wall is reduced.

In addition, after the auxiliary shoe 212 is extended, the inside of the movable cavity 211 is filled with broken stone, so that the firmness of the main shoe 210 is improved, and the phenomenon that the movable cavity 211 is extruded by the tunnel wall to deform when the main shoe 210 contacts the tunnel wall is avoided.

Further, as shown in fig. 5 and 6, in order to prevent broken stone separated from the movable cavity 211 from falling into the bottom of the tunnel, the bottom of the main beam 101 is fixedly provided with a second receiving hopper 230, the second receiving hopper 230 is located below the discharge port 214, a mounting tube 231 is arranged in the second receiving hopper 230, one end of the mounting tube 231 penetrates into the main beam 101 and is located above the secondary conveyor belt 114, a second spiral plate 232 is rotatably arranged in the mounting tube 231, one end of the second spiral plate 232 is connected with a mounting motor 233 for driving the second spiral plate 232 to rotate, and the mounting motor 233 is mounted on the side wall of the second receiving hopper 230. During operation, broken stone in the movable cavity 211 falls into the second receiving hopper 230 through the discharge hole 214, then the power supply of the installation motor 233 is connected to drive the second spiral plate 232 to rotate, the broken stone in the second receiving hopper 230 is lifted to the top end of the installation pipe 231 by the rotation of the second spiral plate 232, the broken stone falls into the top of the secondary conveying belt 114 through the installation pipe 231, the broken stone entering the movable cavity 211 is guided into the secondary conveying belt 114 again, and then the broken stone is conveyed out of the tunnel through the secondary conveying belt 114.

Moreover, the top of the second receiving hopper 230 is provided with a dredging rod 234 in a longitudinally sliding manner, a connecting spring 235 elastically connecting the bottom end of the dredging rod 234 and the bottom of the second receiving hopper 230 is arranged between the bottom end of the dredging rod 234 and the bottom of the second receiving hopper, and a plurality of inclined rods 236 are fixedly arranged at the top end of the dredging rod 234. In this way, when the main boot body 210 rotates and resets, the main boot body 210 pushes the dredging rod 234 to move downwards through the inclined rod 236, and when the discharge hole 214 is displaced to the position right above the dredging rod 234, the dredging rod 234 stretches into the movable cavity 211 through the elasticity of the connecting spring 235, so that broken stones in the movable cavity 211 are broken up and dredged, the broken stones can fall off more quickly, and the efficiency of breaking the broken stones away from the movable cavity 211 is improved.

Fig. 5 shows embodiment 2 of the present application, which is different from embodiment 1 in that crushed stone can be treated during the movement of the main shoe body 210. As shown in the figure, a side plate 220 is disposed in the movable cavity 211, one side of the side plate 220 is fixedly connected with a plurality of anchor posts 221, and one end of the anchor post 221 slides through the anchor post 221.

When the tunnel wall is hardened, the tunnel wall can squeeze the anchor post 221, so that the anchor post 221 can slide to one side of the movable cavity 211, and broken stone is filled in the movable cavity 211, so that the broken stone can be squeezed by the movement of the side plate 220, and the broken stone is crushed into small stones.

It can be seen that when the crushed stone is in the movable cavity 211 and the tunnel wall is hard, the main shoe body 210 is attached to the tunnel wall to press the crushed stone in the movable cavity 211 through the anchor post 221 and the side plate 220, so that the crushed stone is called a small stone, thereby reducing the subsequent processing flow of the crushed stone.

Fig. 4 and 5 also show embodiment 3 of the present application, which is further optimized on the basis of embodiment 2. As shown, the connection tube 213 is made of a flexible material, such as by metal braiding. One end of the connecting pipe 213 is fixedly connected with one end of the conveying pipe 132, the anchor post 221 is of a tubular structure, and the anchor post 221 is communicated with the side plate 220.

Thus, when facing the softer tunnel wall, the broken stone in the movable cavity 211 extrudes the side plate 220, so that the main boot body 210 can drive the anchor post 221 to penetrate into the tunnel wall when rotating, and at the moment, the conveying pipe 132 is fixedly connected with the connecting pipe 213, so that the broken stone in the conveying pipe 132 can continuously convey the stone into the movable cavity 211 through the connecting pipe 213, and the stone in the movable cavity 211 enters the tunnel wall through the tubular anchor post 221 to provide stable supporting force for the tunnel wall.

To sum up, by continuously connecting the connecting pipe 213 with the conveying pipe 132, crushed stone can be continuously conveyed into the movable cavity 211, when the tunnel wall is softer, the anchor post 221 stretches into the tunnel wall, then under the continuous rotation of the first spiral plate 133, part of the stone in the movable cavity 211 is extruded into the anchor post 221, and then is injected into the tunnel wall through the anchor post 221, so as to provide stability for the tunnel wall.

When the tunnel wall is too soft, a hydraulic rod 108 may be provided on the side wall of the connection block 107, and then the steel pipe sheet 109 may be placed on the top end of the hydraulic rod 108, and the steel pipe sheet 109 may be pushed against the tunnel wall by the hydraulic rod 108, thereby supporting the tunnel wall.

In addition, when adopting steel-pipe piece 109 to strut, with tunnel wall in close contact with be unfavorable for the release of rock energy when meetting the rock burst, buries certain potential safety hazard under to later operation and structure safety, and the problem of inboard scarfing cinder difficulty simultaneously, therefore steel-pipe piece 109 adopts the inboard to be the plain noodles, and the outside (with tunnel wall contact surface) is square grid type's structure, just so can satisfy the closely knit degree of steel-pipe piece 109 and rock wall and reserve the buffer layer in order to guarantee the safety of later stage lining structure for rock burst energy release simultaneously.

The foregoing has shown and described the basic principles, principal features and advantages of the application. It will be understood by those skilled in the art that the present application is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present application, and are not intended to limit the application, and that various changes and modifications may be made therein without departing from the spirit and scope of the application as claimed. The scope of the application is defined by the appended claims and equivalents thereof.

Claims (10)

1. TBM entry driving machine based on fill type props boots and adjusts, including shield body (100) and girder (101) of setting in shield body (100) one side, the bottom of girder (101) one end is provided with back support (106), the both sides of girder (101) all rotate and are provided with propulsion hydro-cylinder (105), the one end of propulsion hydro-cylinder (105) is connected with adjustable prop boots (200), its characterized in that: the adjustable support shoe (200) is internally provided with a movable cavity (211), the bottom of the main beam (101) is provided with a conveying mechanism (130), the conveying mechanism (130) is used for conveying broken stone generated in the tunneling process of the shield body (100) into the adjustable support shoe (200) and filling the movable cavity (211), and under the action of broken stone filling, the adjustable support shoe (200) increases the contact area between the adjustable support shoe (200) and the tunnel wall in an extending mode.

2. A filled shoe adjustment based TBM heading machine as defined in claim 1 wherein: the shield body (100) comprises a shield shell (110), a cutter head (111) is arranged on one side of the shield shell (110), a connecting block (107) fixedly connected with a main beam (101) is arranged on the other side of the shield shell, a slag receiving hopper (112) is rotatably arranged inside the shield shell (110), a first-stage conveying belt (113) is further arranged inside the slag receiving hopper (112), one end of the first-stage conveying belt (113) penetrates into the main beam (101), and a second-stage conveying belt (114) is rotatably arranged inside the main beam (101) and used for receiving crushed stones conveyed by the first-stage conveying belt (113).

3. A filled shoe adjustment based TBM heading machine as defined in claim 2 wherein: the main beam (101) is internally provided with a material guide plate (120), one end of the material guide plate (120) is positioned at a material transmission position between the primary conveyor belt (113) and the secondary conveyor belt (114), and the other end of the material guide plate is positioned above the material conveying mechanism (130).

4. A TBM heading machine for shoe adjustment based on filling as claimed in claim 3 wherein: the conveying mechanism (130) comprises a first receiving hopper (131) fixedly arranged at the bottom of the connecting block (107), one side of the first receiving hopper (131) is communicated with a conveying pipe (132), a first spiral plate (133) is rotationally arranged in the conveying pipe (132), and a driving piece for driving the first spiral plate (133) to rotate is arranged at one end of the first spiral plate (133).

5. A filled shoe adjustment based TBM heading machine as defined in claim 4 wherein: the adjustable support shoe (200) comprises a main shoe body (210) and an auxiliary shoe body (212), wherein the main shoe body (210) is fixedly arranged at one end of a pushing oil cylinder (105), a movable cavity (211) is formed in the main shoe body (210), one end of the auxiliary shoe body (212) penetrates into the movable cavity (211) and is slidably arranged in the main shoe body (210) through the movable cavity (211), one side of the main shoe body (210) is connected with a connecting pipe (213), a discharge opening (214) is formed in the bottom of the movable cavity (211), a partition plate (215) is arranged in the movable cavity (211), a return spring (216) is arranged above the partition plate (215), one end of the return spring (216) is connected with the inner wall of the main shoe body (210), and the other end of the return spring is connected with the side wall of the auxiliary shoe body (212).

6. A filled shoe adjustment based TBM heading machine as defined in claim 5 wherein: the connecting pipe (213) is made of hard materials, and after the main boot body (210) is driven by the propulsion oil cylinder (105) to rotate and reset, the connecting pipe (213) is communicated with one end of the conveying pipe (132).

7. A filled shoe adjustment based TBM heading machine as defined in claim 5 wherein: the bottom of girder (101) is fixed and is provided with second and connects hopper (230), second connects hopper (230) to be located the below of bin outlet (214), be provided with installation tube (231) in second connects hopper (230), the one end of installation tube (231) penetrates inside girder (101) and is located the top of second grade conveyer belt (114), the inside rotation of installation tube (231) is provided with second screw plate (232), the one end of second screw plate (232) is connected with and is used for driving second screw plate (232) pivoted driving piece.

8. A filled shoe adjustment based TBM heading machine as defined in claim 7 wherein: the top of second connects hopper (230) vertically slides and is provided with dredging rod (234), be provided with between the bottom of dredging rod (234) and second connects hopper (230) bottom with two elastic connection's coupling spring (235), the top of dredging rod (234) is fixed and is provided with a plurality of diagonal rods (236).

9. A filled shoe adjustment based TBM heading machine as defined in claim 5 wherein: a side plate (220) is arranged in the movable cavity (211), one side of the side plate (220) is fixedly connected with a plurality of anchor posts (221), and one end of each anchor post (221) penetrates through the anchor post (221) in a sliding mode.

10. A filled shoe adjustment based TBM heading machine as defined in claim 9 wherein: the connecting pipe (213) is made of flexible materials, one end of the connecting pipe (213) is fixedly connected with one end of the conveying pipe (132), the anchor post (221) is of a tubular structure, and the anchor post (221) is communicated with the side plate (220).