Advanced geological drilling construction method and system for TBM

Abstract

The invention discloses an advanced geological drilling construction method and system for a TBM. The advanced geological drilling construction method comprises the following steps that S100, a drill rod of a drilling machine is aligned with a hole located in the circle center of a cutterhead of the TBM; s200, a cutterhead of the TBM rotates to conduct tunneling, and a drill rod of the drilling machine synchronously constructs a ground stress release hole; s300, high-pressure water washing is conducted on the crustal stress releasing holes; s400, the geological condition and the crustal stress condition are ascertained through the crustal stress release holes; s500, construction is adjusted according to the geological condition and the ground stress condition obtained in the step S400; s600, the steps S300 to S500 are repeated until tunneling is completed; wherein in the step S300 to the step S500, the TBM can keep tunneling. The advanced geological drilling construction system is used for the advanced geological drilling construction method for the TBM. The stop waiting time of the TBM is greatly shortened, the working efficiency of the TBM is effectively improved, the using effect of the TBM is improved, and the tunnel construction time and cost are greatly reduced. And the starting and stopping times of the TBM are greatly reduced, so that the TBM loss caused by frequent starting and stopping is reduced, and the service life of the TBM is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of TBM construction, and in particular to an advanced geological drilling construction method and system for TBM. Background Art

[0002] TBM (Tunnel Boring Machine) is a tunneling equipment used for hard rock tunnel construction. The compressive strength of hard rock is greater than 60MPa. Common hard rocks include but are not limited to granite, marble and quartzite.

[0003] Due to the characteristics of hard rock, if TBM is directly excavated, not only will the excavation speed be slow, which will slow down the construction progress, but it will also easily wear the cutterhead and reduce the service life of the TBM. In the existing technology, blasting is used to reduce the obstacles of hard rock to excavation, so the relevant section is also called rock burst section. Specifically, in the existing technology, multiple stress release holes are constructed on the face of the rock burst section of the tunnel, and hydraulic fracturing, blasting, and expansion fracturing are used to release the energy accumulated in the surrounding rock, reduce the integrity of the surrounding rock, form a secondary stress field of the surrounding rock, and ensure the safety of the construction of the rock burst section of the tunnel.

[0004] The defects of the existing technology are: during the stress release operation, the TBM is in a shutdown state; after the stress release operation is completed, the TBM starts and excavates; and the distance of the stress release operation is limited. During the excavation process, the above steps need to be repeated several times. Based on this, the TBM downtime is long, which reduces the TBM working time, greatly reduces the TBM working efficiency, greatly reduces the TBM use effect, and increases the tunnel construction time and cost. Summary of the invention

[0005] The technical problem to be solved by the present invention is that the downtime of TBM is relatively long, and the purpose is to provide an advanced geological drilling construction method and system for TBM to solve the above problem.

[0006] The present invention is achieved through the following technical solutions:

[0007] In a first aspect, the present invention provides a method for advanced geological drilling construction for a TBM, comprising the following steps:

[0008] S100: A hole is set at the center of the TBM cutterhead, and the diameter of the hole is slightly larger than the diameter of the drill rod of the drilling rig;

[0009] S200: the drill rod of the drilling rig is aligned with the hole located at the center of the cutter head of the TBM;

[0010] S300: The cutter head of the TBM rotates to excavate, and the drill rod of the drilling rig constructs the ground stress relief hole synchronously;

[0011] S400: High-pressure water washing of ground stress release holes;

[0012] S500: Ascertain the geological conditions and ground stress conditions through ground stress release holes;

[0013] S600: Adjust construction according to the geological conditions and ground stress conditions obtained in S500;

[0014] S700: repeat S400-S600 until excavation is completed;

[0015] Among them, in S400-S600, the TBM can maintain excavation.

[0016] In one possible design, in step S100, the diameter of the hole is 15-20 mm larger than the diameter of the drill rod of the drilling rig;

[0017] Step S200 includes the following steps:

[0018] S210: The drilling rig is fixed on the TBM;

[0019] S220: The drill rod of the drilling rig is aligned with the hole, and the slag discharge port of the drilling rig is connected to the slag discharge module of the TBM.

[0020] In a possible design, the drilling rig is a composite drilling rig with vibration, impact, rotation and static pressure functions.

[0021] In a possible design, in step S300, the depth of the ground stress relief hole is not less than 15-20 meters.

[0022] In one possible design, step S500 includes the following steps:

[0023] S510: placing an in-hole television in the borehole; exploring geological conditions through the in-hole television; and removing the in-hole television;

[0024] S520: Place a geostress testing device in the borehole; determine the geostress conditions using the geostress testing device; and remove the geostress testing device.

[0025] In one possible design, step S600 includes the following steps:

[0026] S610: If the geological conditions are poor, the TBM will continue to advance and provide advance support.

[0027] S620: If the geological conditions are good and the ground stress is low, the TBM continues to advance;

[0028] S630: If the geological conditions are good and the ground stress is moderate, the TBM will continue to advance and release the ground stress through the borehole expansion fracturing method;

[0029] S640: If the geological conditions are good and the ground stress is high or extremely high, the ground stress is released by drilling and blasting, and only during blasting the TBM moves forward towards the tunnel entrance and leaves the face;

[0030] Among them, S610-S640 are independent of each other, and one is selected for construction based on the geological conditions and ground stress conditions obtained by S500.

[0031] In one possible design, the drill and blast method includes the following steps:

[0032] S1: Series explosives are placed in the borehole; each explosive is provided with a millisecond detonator;

[0033] S2: With the tunnel face as the reference plane, detonate in sequence from near to far;

[0034] S3: Pour in high-pressure water and maintain pressure; remove high-pressure water.

[0035] In a possible design, in step S1, the distance between the end of the series explosive close to the tunnel face and the tunnel face is 1-2 meters; step S2 adopts the electric detonation method; and the pressure holding time of step S3 is not less than 30 minutes.

[0036] In a possible design, in step S640, the TBM advances toward the tunnel entrance and moves at least 5 meters away from the tunnel face.

[0037] In a second aspect, the present invention provides an advanced geological drilling construction system for use in the advanced geological drilling construction method for TBM.

[0038] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0039] The downtime of TBM is greatly reduced, which effectively increases the working efficiency of TBM, increases the use effect of TBM, and greatly reduces the time and cost of tunnel construction. The number of TBM starts and stops is greatly reduced, which helps to reduce the damage to TBM caused by frequent starts and stops, and helps to extend the service life of TBM. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and should not be regarded as limiting the scope. For those of ordinary skill in the art, other relevant drawings can be obtained based on these drawings without creative work. In the drawings:

[0041] Figure 1 The figure is a flow chart of an advanced geological drilling construction method for TBM.

[0042] Figure 2 It is a schematic diagram of the longitudinal section structure of an advanced geological drilling construction method for TBM.

[0043] Figure 3 It is a schematic diagram of the cross-sectional structure of an advanced geological drilling construction method for TBM.

[0044] Marks and corresponding parts names in the attached drawings:

[0045] 1. TBM; 101. cutterhead; 102. hole; 2. drilling rig; 201. drill rod; 3. ground stress relief hole; 4. heading face. DETAILED DESCRIPTION

[0046] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with embodiments and drawings. The exemplary embodiments of the present invention and their description are only used to explain the present invention and are not intended to limit the present invention.

[0047] In the following description, a large number of specific details are set forth in order to provide a thorough understanding of the present invention. However, it is apparent to one of ordinary skill in the art that these specific details are not necessarily employed to practice the present invention. In other embodiments, in order to avoid obscuring the present invention, well-known structures, circuits, materials, or methods are not specifically described.

[0048] Throughout the specification, references to "one embodiment," "an embodiment," "an example," or "an example" mean that a particular feature, structure, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment of the present invention. Therefore, the phrases "one embodiment," "an embodiment," "an example," or "an example" appearing in various places throughout the specification do not necessarily all refer to the same embodiment or example. In addition, particular features, structures, or characteristics may be combined in one or more embodiments or examples in any suitable combination and / or sub-combination. In addition, it will be appreciated by those of ordinary skill in the art that the figures provided herein are for illustrative purposes and that the figures are not necessarily drawn to scale. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0049] In the description of the present invention, the directions or positional relationships indicated by terms such as “front”, “rear”, “left”, “right”, “up”, “down”, “vertical”, “horizontal”, “high”, “low”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limiting the scope of protection of the present invention.

[0050] Example:

[0051] like Figure 1-Figure 3 As shown, a method for advanced geological drilling construction for TBM includes the following steps:

[0052] S100: a hole 102 is provided at the center of the cutter head 101 of the TBM 1, and the diameter of the hole 102 is slightly larger than the diameter of the drill rod 201 of the drilling rig 2;

[0053] S200: The drill rod 201 of the drilling rig 2 is aligned with the hole 102 located at the center of the cutter head 101 of the TBM 1;

[0054] S300: The cutter head 101 of TBM1 rotates and excavates, and the drill rod 201 of the drilling rig 2 constructs the ground stress relief hole 3 synchronously;

[0055] S400: High-pressure water washing of ground stress release hole 3;

[0056] S500: Ascertaining geological conditions and ground stress conditions through the ground stress release hole 3;

[0057] S600: Adjust construction according to the geological conditions and ground stress conditions obtained in S500;

[0058] S700: repeat S400-S600 until excavation is completed;

[0059] Among them, in S400-S600, TBM1 can maintain excavation.

[0060] In the advanced geological drilling construction method for TBM, a hole 102 is opened at the center of the cutter head 101 of TBM1, and the diameter of the hole 102 is slightly larger than the diameter of the drill rod 201 of the drill rig 2, and the diameter of the hole 102 is much smaller than the diameter of the cutter head 101, so the setting of the hole 102 will not affect the excavation efficiency of the cutter head 101. Therefore, by aligning the drill rod 201 of the drill rig 2 with the hole 102 through S100, the drill rod 201 of the drill rig 2 can extend outward and extend to the front of the cutter head 101. When TBM1 is excavating, the drill rig 2 moves synchronously with TBM1, and the drill rod 201 of the drill rig 2 extends to the front of the cutter head 101 and drills a borehole, which is the ground stress release hole 3, and the ground stress release hole 3 can be used for geological condition collection and ground stress condition collection of the rock formation in front of the cutter head 101, that is, S500. It is easy to understand that before S500, water washing is performed through S400 to ensure that there are no rock blocks and rock cuttings in the borehole, and to soften the surrounding rock and reduce the strength of the surrounding rock.

[0061] Therefore, during the excavation process of TBM1, advance drilling and advance measurement are achieved for the rock layer at a certain distance in front of the cutter head 101, and the relevant situation is obtained without causing TBM1 to stop.

[0062] In S600, in the rock burst section, according to the known geological conditions and ground stress conditions, timely ground stress release operations are carried out to consume the energy accumulated in the surrounding rock in time, reduce the integrity of the surrounding rock, reduce the surrounding rock grade, adjust the surrounding rock stress field, form the surrounding rock secondary stress field, ensure the smoothness and integrity of the excavation surface wall, reduce the over-excavation, and ensure the safety of the rock burst section of the tunnel. At the same time, preventing rock burst from damaging TBM1 and preventing the surrounding rock from converging and deforming and jamming the cutterhead 101 and the shield shell will help speed up the excavation speed of TBM1, increase the continuous excavation time of TBM1, ensure the safety of TBM1 itself, and have good practicality.

[0063] By extension, during the entire excavation process of TBM1, the geological conditions of the remaining sections except the rockburst section can also be obtained through the above method, so as to adjust the construction in time, conduct pre-operation on the advanced section or adjust the excavation parameters to ensure excavation efficiency and construction safety.

[0064] Furthermore, for the adjustment construction, if the related construction work does not affect the excavation of TBM1 or the safety of TBM1 equipment, TBM1 can keep excavating, reduce downtime, and improve construction efficiency. If the related work affects the excavation of TBM1 or the safety of TBM1 equipment, TBM1 will be shut down or moved away from the tunnel face 4 after being shut down, and then started and excavated after the related work is completed.

[0065] The cycle is achieved through S700, and TBM1 also excavates according to the designed direction until the tunnel construction is completed.

[0066] Based on this, the downtime waiting time of TBM1 is greatly reduced, which effectively increases the working efficiency of TBM1, increases the use effect of TBM1, and greatly reduces the tunnel construction time and cost. Furthermore, the number of starts and stops of TBM1 is greatly reduced, which helps to reduce the loss of TBM1 caused by frequent starts and stops, and helps to extend the service life of TBM1.

[0067] Regarding step S100, in step S100, the diameter of the hole 102 is 15-20 mm larger than the diameter of the drill rod 201 of the drilling rig 2. Based on this, it is ensured that the drill rod 201 of the drilling rig 2 can pass through the hole smoothly, so that the drill rod 201 is located in front of the cutter head 101 and the ground stress release hole 3 is constructed to collect the geological conditions and ground stress conditions of the rock formation in front of the cutter head 101 in advance. It is easy to understand that the hole 102 can be processed by any suitable method.

[0068] Regarding step S200, step S200 includes the following steps:

[0069] S210: Drilling rig 2 is fixed on TBM1;

[0070] S220: The drill rod 201 of the drilling rig 2 is aligned with the hole 102, and the slag discharge port of the drilling rig 2 is connected to the slag discharge module of the TBM 1.

[0071] Based on the above design scheme, in S210, the drilling rig 2 is fixedly connected to TBM1, and the drilling rig 2 is synchronously driven to move through the excavation of TBM1. On the one hand, the synchronous movement of the two is achieved, reducing the related driving equipment used to move the drilling rig 2. On the other hand, it ensures that the drilling rig 2 maintains the drilling depth and realizes advance drilling, so that the depth of the ground stress release hole 3 meets the design requirements.

[0072] In S220, after the drilling rig 2 is fixed, its drill rod 201 is aligned with the hole 102, and its slag discharge port is connected to the slag discharge module of TBM1. Based on this, the drill rod 201 passes through the hole 102 and drills into the rock formation to avoid the cutter head 101 blocking the drill rod 201; the rock cuttings and slag generated by drilling are transported to the slag discharge module of TBM1, that is, the belt conveyor or slag discharge pipe of TBM1, so that the slag discharge is achieved while reducing the equipment related to the drilling rig 2, and further reducing the number of components.

[0073] In addition, TBM1 is provided with intermediate components such as a supporting device and a cutterhead bearing to realize the connection between the remaining structures of TBM1 and the cutterhead 101. The connection between the drilling rig 2 and TBM1 can be at the intermediate component to shorten the distance between the drill rod 201 and the hole 101, or the connection can also be located at any suitable position on TBM1.

[0074] Optionally, the drilling rig 2 uses a composite drilling rig with vibration, impact, rotation, and static pressure functions. Based on the above design scheme, the drilling rig 2 has multiple functions, which, on the one hand, helps to speed up its drilling speed and ensure that the depth of the ground stress release hole 3 meets the design requirements. On the other hand, it improves the adaptability of the drilling rig 2 to different address conditions, avoids downtime caused by drilling problems of the drilling rig 2, and ensures construction efficiency.

[0075] For step S300, TBM1 and drilling rig 2 work simultaneously, the former realizes tunnel excavation, and the latter realizes drilling of ground stress release hole 3. Further, when TBM1 is located at the starting position, the geological conditions in the excavation direction of TBM1 should be detected in advance. Accordingly, the exploration can be carried out after drilling ground stress release hole 3 by drilling rig 2, or by any other suitable existing method. When TBM1 is in the excavation process, TBM1 and drilling rig 2 work simultaneously, and the geological conditions in the excavation direction of TBM1 are explored by drilling ground stress release hole 3 by drilling rig 2.

[0076] Optionally, in step S300, the depth of the ground stress release hole 3 is not less than 15-20 meters. Based on the above design scheme, according to the model of TBM1, the model of drilling rig 2, the rock formation, the excavation requirements and other conditions, the technicians in this field determine the specific depth of the ground stress release hole 3. Similarly, for the parameters such as the diameter of the hole 102 and the diameter of the ground stress release hole 3, according to the model of TBM1, the model of drilling rig 2, the rock formation, the excavation requirements and other conditions, the technicians in this field determine their specific values, and the present invention does not impose any restrictions on this.

[0077] For step S400, after the drilling rig 2 completes drilling, it uses high-pressure water to clean the borehole to ensure that there are no rocks or rock chips in the borehole, and to soften the surrounding rock and reduce its strength; at the same time, it also prepares for the implementation of S500, which helps to improve the accuracy of exploration.

[0078] For step S400, step S500 includes the following steps:

[0079] S510: placing an in-hole television in the borehole; exploring geological conditions through the in-hole television; and removing the in-hole television;

[0080] S520: Place a geostress testing device in the borehole; determine the geostress conditions using the geostress testing device; and remove the geostress testing device.

[0081] Based on the above design scheme, in S510, the geological conditions within a certain distance in front of the tunnel face 4 are explored in advance through the in-hole television, such as lithology, structural surface, rock mass integrity, surrounding rock grade, etc. In S520, the ground stress conditions within a certain distance in front of the tunnel face 4 are explored in advance through the ground stress testing equipment.

[0082] It is easy to understand that, if necessary, S510 and S520 can be performed multiple times respectively, and more detailed and accurate data can be obtained by aggregating data from multiple detections to avoid the randomness of a single detection.

[0083] The staff summarized the data obtained from the two detections to understand the situation of the next excavation section, which also provided data support for the implementation of S600, improving excavation efficiency and ensuring construction safety.

[0084] Regarding step S600, step S600 includes the following steps:

[0085] S610: If the geological conditions are poor, TBM1 will continue to advance and provide advance support.

[0086] S620: If the geological conditions are good and the ground stress is low, TBM1 continues to advance;

[0087] S630: If the geological conditions are good and the ground stress is moderate, TBM1 will continue to advance and release the ground stress by drilling expansion fracturing method;

[0088] S640: If the geological conditions are good and the ground stress is high or extremely high, the ground stress is released by drilling and blasting, and only during blasting, TBM1 steps toward the tunnel entrance and leaves the tunnel face 4;

[0089] Among them, S610-S640 are independent of each other, and one is selected for construction based on the geological conditions and ground stress conditions obtained by S500.

[0090] Based on the above design scheme, in S610, the geological conditions are poor, such as loose layers or approximate structures, with small ground stress and loose structure, and timely advance support is applied to avoid collapse during excavation and ensure construction safety. In S620, the geological conditions are good, there is no need to worry about collapse, the ground stress is low, and there is no need to release the ground stress through operations. TBM1 can just keep excavating.

[0091] In S630, the geological conditions are good and there is no need to worry about collapse, but the ground stress is moderate. The cutterhead 101 has great resistance when TBM1 is excavating, which not only slows down the excavation speed, but also easily increases the wear of the cutterhead 101, so the ground stress needs to be released in advance. Similarly, for S640, its ground stress is high or extremely high, so it is even more necessary to release the ground stress in advance. Due to the different magnitudes of ground stress, the difference between S630 and S640 lies in the different methods of ground stress release. Specifically: in S630, ground stress can be released by drilling expansion and fracturing, while in S640, ground stress needs to be released by drilling and blasting.

[0092] Further, for S640, when blasting to release ground stress, if TBM1 keeps advancing, the vibration generated during the blasting process will act on the cutterhead 101 of TBM1 through the rock layer, which is easy to damage the cutterhead 101. Therefore, during the blasting, TBM1 steps toward the tunnel entrance and leaves the face 4. At this time, TBM1 does not perform excavation operations. On the contrary, in S630, the expansion fracturing method puts an expansion agent in the ground stress release hole 3, and the rock is cracked by the expansion agent, which has little effect on the cutterhead 101 of TBM1, so TBM1 can keep excavating.

[0093] Then, during the tunneling process of TBM1, only when the ground stress is released by blasting in the rock burst section, TBM1 must stop tunneling and leave the tunnel face 4, and can keep tunneling at other times. In the prior art, after tunneling a certain distance, TBM1 needs to stop and leave the tunnel face 4 to reserve space for geological exploration. Therefore, the advanced geological drilling construction method for TBM greatly shortens the downtime and waiting time of TBM1 when it is implemented.

[0094] Optionally, the drilling and blasting method comprises the following steps:

[0095] S1: Series explosives are placed in the borehole; each explosive is provided with a millisecond detonator;

[0096] S2: With the tunnel face 4 as the reference plane, detonate in sequence from near to far;

[0097] S3: Pour in high-pressure water and maintain pressure; remove high-pressure water.

[0098] Based on the above design scheme, in S1, the amount and spacing of explosives are dynamically adjusted by technicians in this field according to the surrounding rock ground stress and surrounding rock integrity, and the present invention does not impose any restrictions on this. Through millisecond detonators, ensure that the detonation sequence meets the requirements so that the blasting achieves the expected effect. In S3, since there is only one ground stress release hole 3 and it is located at the center of the cutter head 101, the range of action after blasting is limited. In order to provide the effect of ground stress release, after blasting, hydraulic fracturing is achieved by maintaining pressure with high-pressure water to expand the volume of the fragmented area in the rock formation, further consume the energy accumulated in the surrounding rock, reduce the integrity of the surrounding rock, and reduce the grade of the surrounding rock, making TBM1 excavation more convenient.

[0099] In a possible implementation, in step S1, the distance between the end of the series explosive close to the tunnel face 4 and the tunnel face 4 is 1-2 meters. Based on this, the tunnel face 4 is protected, the tunnel face 4 is prevented from being broken, the excavation face wall is ensured to be smooth and complete, and the wear of the cutter head 101 of the TBM1 is reduced.

[0100] In a possible implementation, step S2 adopts electric initiation method. Based on this, the electric initiation method is safe and reliable, ensures construction safety, and cooperates with millisecond detonators to achieve sequential initiation, ensuring that the blasting achieves the expected effect.

[0101] In a possible implementation, the pressure holding time of step S3 is not less than 30 minutes. Based on this, the effect of hydraulic fracturing is ensured, and the specific pressure holding time is selected by those skilled in the art according to actual conditions.

[0102] Optionally, in step S640, the TBM 1 steps toward the tunnel opening and moves at least 5 meters away from the tunnel face 4. It is easy to understand that the specific stepping distance is selected by those skilled in the art according to actual conditions.

[0103] This embodiment introduces an advanced geological drilling construction system based on the advanced geological drilling construction method for TBM. The advanced geological drilling construction system is used for the advanced geological drilling construction method for TBM.

[0104] It is easy to understand that the advanced geological drilling construction system includes TBM1, drilling rig 2, explosives and millisecond detonators, expansion agents, high-pressure water, in-hole televisions and ground stress testing equipment, wherein explosives and millisecond detonators, expansion agents, high-pressure water, in-hole televisions or ground stress testing equipment are selected according to the specific implementation steps of the advanced geological drilling construction method for TBM.

[0105] Furthermore, the advanced geological drilling construction system can also include any other suitable functional modules, with richer functions to meet different work requirements and better practicality. It is easy to understand that the functional modules can be selected from any suitable existing equipment, with a wide range of choices.

[0106] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A method for advanced geological drilling construction for TBM, characterized in that: The following steps are involved: S100: a hole (102) is provided at the center of the cutter head (101) of the TBM (1), and the diameter of the hole (102) is slightly larger than the diameter of the drill rod (201) of the drilling rig (2); S200: The drill rod (201) of the drilling machine (2) is aligned with the hole (102) located at the center of the cutter head (101) of the TBM (1); S300: The cutter head (101) of the TBM (1) rotates to excavate, and the drill rod (201) of the drilling rig (2) synchronously constructs a ground stress relief hole (3); S400: High-pressure water washing of the ground stress release hole (3); S500: Ascertaining geological conditions and ground stress conditions through the ground stress release hole (3); S600: Adjust construction according to the geological conditions and ground stress conditions obtained in S500; S700: repeat S400-S600 until excavation is completed; Among them, in S400-S600, TBM (1) can maintain excavation.

2. The advanced geological drilling construction method for TBM according to claim 1, characterized in that: In step S100, the diameter of the hole is 15-20 mm larger than the diameter of the drill rod of the drilling rig; Step S200 includes the following steps: S210: The drilling rig (2) is fixed on the TBM (1); S220: The drill rod (201) of the drilling rig (2) is aligned with the hole, and the slag discharge port of the drilling rig (2) is connected to the slag discharge module of the TBM (1).

3. The advanced geological drilling construction method for TBM according to claim 1 or 2, characterized in that: The drilling rig (2) is a composite drilling rig with vibration, impact, rotation and static pressure functions.

4. The advanced geological drilling construction method for TBM according to claim 3, characterized in that: In step S300, the depth of the ground stress release hole (3) is not less than 15-20 meters.

5. The advanced geological drilling construction method for TBM according to claim 4, characterized in that: Step S500 includes the following steps: S510: placing an in-hole television in the borehole; exploring geological conditions through the in-hole television; and removing the in-hole television; S520: Place a geostress testing device in the borehole; determine the geostress conditions using the geostress testing device; and remove the geostress testing device.

6. The advanced geological drilling construction method for TBM according to claim 5, characterized in that: Step S600 includes the following steps: S610: If the geological conditions are poor, the TBM (1) continues to advance and implements advance support. S620: If the geological conditions are good and the ground stress is low, the TBM (1) continues to advance; S630: If the geological conditions are good and the ground stress is moderate, the TBM (1) continues to advance and releases the ground stress by drilling expansion fracturing method; S640: If the geological conditions are good and the ground stress is high or extremely high, the ground stress is released by drilling and blasting, and only during blasting the TBM (1) moves forward towards the tunnel entrance and leaves the tunnel face (4); Among them, S610-S640 are independent of each other, and one is selected for construction based on the geological conditions and ground stress conditions obtained by S500.

7. The advanced geological drilling construction method for TBM according to claim 6, characterized in that: The drill and blast method includes the following steps: S1: Series explosives are placed in the borehole; each explosive is provided with a millisecond detonator; S2: Using the tunnel face (4) as the reference plane, detonate in sequence from near to far; S3: Pour in high-pressure water and maintain pressure; remove high-pressure water.

8. The advanced geological drilling construction method for TBM according to claim 7, characterized in that: In step S1, the distance between the end of the series explosive close to the tunnel face (4) and the tunnel face (4) is 1-2 meters; step S2 adopts the electric detonation method; and the pressure holding time in step S3 is not less than 30 minutes.

9. The advanced geological drilling construction method for TBM according to claim 6, characterized in that: In step S640, TBM (1) moves forward towards the tunnel entrance and away from the tunnel face by at least 5 meters.

10. An advanced geological drilling construction system, characterized in that: An advanced geological drilling construction method for TBM used in any one of claims 1-9.

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