A multi-point reaction-force assisted drilling method for long pipe curtains based on software simulation positioning

Abstract

A multi-point reaction force-assisted drilling method for long pipe curtain tunnels based on software simulation and positioning is proposed. Three arch frames are installed on a concrete construction platform, with one drilling rig mounted on each frame. The drilling rig's assigned drilling positions are divided into zones. CAD software is used to simulate the working face, designing the borehole center point, the four quadrant points of the borehole wall circumference, and the drilling rig positioning points. Drilling rig positioning ensures the platform's multi-directional stress stability during drilling, with each rig drilling clockwise from one side of its assigned zone to the other. Pipe section installation: Steps 4-6 are repeated to complete all borehole drilling and pipe installation. This method addresses the problems in tunnel engineering, such as increased borehole deviation due to poor stability of the drilling rig and auxiliary platform, low compatibility of pipe installation equipment between auxiliary drilling rigs, and significant mutual interference when multiple drilling rigs operate simultaneously, hindering the normal operation and efficiency of the project.

Description

Technical Field

[0001] This invention belongs to the field of tunnel construction technology, specifically relating to a method for multi-point reaction force-assisted drilling of long pipe curtain based on software simulation positioning. Background Technology

[0002] Spiral drill pipe jacking, as a horizontal reinforcement measure for the excavated rock and soil mass of tunnels or horizontal tubular structures, is typically used for pre-reinforcement of medium to low-strength strata such as soft soil, clay, sand, and some strongly weathered strata. However, when drilling long sections of medium-strength (10MPa) or higher strata, the construction efficiency drops to 50% or even lower. Furthermore, limitations imposed by the stability of the auxiliary drilling platform and working space, specifically: the stability of the working platform and the drilling rig setup directly affect the borehole angle deviation after drilling begins; poor platform stability makes it difficult to guarantee the stability of the drilling rig during the drilling process, greatly increasing the probability of borehole deviation and affecting the quality of the pipe jacking construction; the space constraints of multiple drilling rigs operating on the auxiliary platform lead to low efficiency of a single pipe jacking operation; and the smooth execution of auxiliary hoisting and installation of the heavy steel pipe sections during construction also contribute to the overall efficiency of completing long sections of large-diameter (Φ600 and above) spiral drill pipe jacking in medium to high-strength strata. Summary of the Invention

[0003] In order to overcome the shortcomings of the prior art, the purpose of this invention is to provide a long pipe curtain multi-support reaction force assisted drilling method based on software simulation positioning, which is used to solve the problems of increased drilling deviation caused by poor stability of drilling rigs and auxiliary platforms during pipe curtain operations in tunnel engineering, low matching degree of auxiliary drilling rig pipe lowering and hoisting equipment, and large mutual interference when multiple drilling rigs are working at the same time, making it difficult to achieve normal construction efficiency and improve efficiency.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0005] A method for multi-point reaction force-assisted drilling of long pipe curtains based on software simulation positioning includes the following steps:

[0006] Step 1: Install the long pipe curtain multi-point reaction auxiliary construction platform. Install three arch frames on the concrete construction platform, and install one drilling rig on each arch frame. The three drilling rigs are numbered Z1, Z2 and Z3 from left to right.

[0007] Step 2: Divide the drilling positions of the drilling rigs into zones. The zone rule is that each drilling rig is responsible for drilling within one-third of the circumference of the working face where the designed hole is located. When the drilling is at the boundary line of the zone, the construction of the hole is assigned to the preceding drilling rig.

[0008] Step 3: Use CAD software to simulate the working face and design the center point of the hole, the four quadrant points of the hole wall circumference, and the drilling rig positioning points for layout.

[0009] Step 31: Draw a face diagram in CAD software based on the actual face data. Combine the face data measured by the measuring instrument with the face diagram, mark 5 control points for each designed hole position on the face diagram. The 5 control points here refer to the center point of each borehole and the 4 quadrant points of the borehole circumference. They are mainly used to judge the intuitive deviation between the drill bit and the borehole position after the drilling rig is positioned. The center point is relatively less important. The main purpose is to draw the other four circumferential quadrant points based on the borehole radius once the center point is in place.

[0010] Step 32: Based on the control points described in Step 31, use CAD software to draw the positions of the control points of the first and second hinged sliders on the first arch frame when the drilling rig is positioned at all holes on the face. The control points are marked as k1z1j1 and k1z1j2 respectively. At the same time, the extension length of the inclined brace screw is recorded as k1z1xc1, and the extension length of the fine-tuning cylinder screw on the platform is recorded as k1z1sg1.

[0011] Step 33: When positioning the second hole, the first and second hinged sliders on the first arch frame are marked with points k2z1j1 and k2z1j2 respectively. At the same time, the extension length of the diagonal brace screw k2z1xc2 and the extension length of the fine-tuning cylinder screw on the platform k2z1sg2 are recorded. Similarly, when positioning the i-th hole, the two sliders are marked with points kiz1j1 and kiz1j2 respectively. At the same time, the extension length of the diagonal brace screw kiz1xci and the extension length of the fine-tuning cylinder screw on the platform z1sgi are recorded.

[0012] Step 34: The first and second hinge slider marking points on each arch frame of drilling rigs z2 and z3 are the same as steps 31, 32 and 33, respectively kiz2j1, kiz2j2 and kiz3j1, kiz3j2, and the extension lengths of the diagonal brace screws are z2xci, z3xci and the extension lengths of the fine adjustment cylinder screws on the platform are z2sgi, z3sgi;

[0013] To further illustrate how software can be used to simulate the positioning parameters of various components of the drilling rig at different hole positions, this paper takes the positioning parameter simulation of the leftmost drilling rig at the first and second holes on the left as an example. When Z1 drills at the first hole position on the far left of the construction face, the positions of the first and second hinged sliders on the first arch frame are k1z1j1 and k1z1j2, respectively. The extension length of the inclined brace screw is k1z1xc1. The extension length of the screw of the fine-tuning cylinder (3) on the platform is recorded as k1z1sg1. The positioning parameters of the second hole position are obtained by using CAD software through the following steps:

[0014] ① Rotate the drilling rig and platform around the tunnel axis so that the drill rod axis and the center point of the second hole are in the same vertical plane, while keeping the drilling rig platform horizontal. At this time, the relative position k2z1j1 of the first hinged slider on the arch frame is obtained. It should be emphasized that the relative positions of the first hinged slider on the arch frame on the front and rear arch frames are the same.

[0015] ② Rotate the second slider around the tunnel axis, and at the same time adjust the extension amount of the extension or shortening screw to make the platform achieve horizontal support. At this time, read the relative position k2z1j2 of the second slider and the extension amount of the diagonal brace screw. It should be emphasized that the relative position of the second slider on the arch frame on the front and rear two ring arch frames and the extension amount of the front and rear diagonal brace screws are the same.

[0016] ③ Raise the drilling rig and base so that the center of the drill rod is at the same height as the center of the borehole. At this time, read the elongation of the hydraulic cylinder screw k2z1sg1. It should be emphasized that the adjustment of the four hydraulic cylinder screws of the drilling rig base is the same.

[0017] After the drilling rig quickly adjusts according to the simulated positioning parameters of each component, it makes fine adjustments based on the site conditions to prevent inaccurate drilling caused by errors. At the same time, it avoids the problems of slow positioning and difficulty caused by excessive error in the combination parameters and lack of guidance when the drilling rig switches hole positions for positioning, especially when the combination parameters of different components are adjusted over a wide range.

[0018] Step 4, Drill Rig Positioning: During drilling rig positioning, use a chain electric hoist to pull the first arch frame, traction the first drilling rig platform so that the control point of the first articulated slider coincides with the control point kizij1 marked on the hole position to be constructed in the CAD simulation. At the same time, use a jack or hand hoist to pull the second articulated slider to coincide with the control point kizij2. Then tighten the fastening bolts on both sets of sliders used to lock the sliders and I-beams, and place wedge blocks on the back of the sliders and arch frame to further ensure slider locking. Then, according to the data from the CAD simulation, rotate the lead screw on the upper part of the first articulated slider by the length zixci to keep the platform horizontal. Adjust the extension of the four hydraulic cylinders on the drilling rig by zisgi to align the end of the drill rod axis with the measured hole position. The same applies to drilling rigs z2 and z3.

[0019] Step 5: During the drilling process, keep the hand chain hoist under tension at all times to further ensure the stability of the platform under multi-directional forces. At the same time, the drilling sequence during the drilling process should be carried out by each drilling machine in a clockwise order from one side to the other in its section.

[0020] Step 6, Pipe Section Lifting and Installation: When drilling is completed and pipe sections need to be installed, the drilling rigs on both sides of the arch frame use an excavator to place the pipe section under the hook along the tunnel direction, keeping the pipe axis parallel to the tunnel axis. The crane trolley on the platform is started to lift the steel pipe synchronously, raising it so that the pipe axis is consistent with the height of the hole. Then, it is moved laterally to the corresponding hole position, and the pipe section is lowered for pipe installation, jacking or welding assembly. At the same time, when there is a circumferentially connected hand chain hoist chain blocking the platform plate during pipe section lifting, the chain hoist chain is temporarily removed when the corresponding hinged slider of the drilling rig platform is locked to avoid blocking the lifting of the pipe section. After the pipe section is installed, the chain hoist chain is restored to the tensioned state.

[0021] Step 7: Repeat steps 4 to 6 to complete the drilling and pipe laying construction for all borehole locations.

[0022] The two sets of hinged sliders of the multi-point reaction force assisted construction platform for pipe curtain are divided into a first hinged slider and a second hinged slider. The first hinged slider is connected to the platform plate by a rotating hinge and is fitted onto the back flange plate of the arc-shaped arch frame. The second hinged slider is hinged to the lower part of the platform plate through an adjustable screw. The first hinged slider and the second hinged slider are supported and connected to the platform plate by screw hinge.

[0023] The multi-point reaction force assisted construction platform for pipe curtain includes a fixed pipe lifting frame, a pipe curtain drilling rig, a drilling rig base, and a synchronous electric hydraulic screw. The base of the pipe curtain drilling rig is fixed with vertical hydraulic screw cylinders at the four corners. As the extension and retraction of the hydraulic screw cylinders are adjusted, the base of the drilling rig is raised and lowered, so that the drill rod can reach the required drilling height.

[0024] The aforementioned multi-point reaction force auxiliary construction platform for the pipe curtain is connected to the front and rear arch frames. Five longitudinal steel connecting rods connect the webs of the two arch frames, tie the steel connecting rods, the electric chain hoist of the platform, and the radial reaction steel connecting the webs of the rear arch frame.

[0025] The pipe lifting frame includes a vertical support steel member and a horizontal guide rail steel member fixedly connected to the top of the vertical support steel member. A horizontal sliding lifting device is installed on the horizontal guide rail steel member. The lifting device is installed on a platform on one side of the screw hinge support and is arranged parallel in both large and small mileage directions. End-sealing and limiting steel plates are installed at both ends of the horizontal guide rail. The distance between the horizontal projection point of the lifting hook of the lifting device and the edge of the platform is greater than 10cm or more than the radius of the pipe curtain drilling. The distance between the two horizontal guide rails on the same platform is less than the length of the lifting pipe section.

[0026] The line connecting the arch back points at the same angle in the cross-sectional projection of the aforementioned arc-shaped arch frame is parallel to the center line of the designed borehole axis.

[0027] When the electric chain hoist pulls the platform, the first hinged slider can slide along the flange of the I-beam arch as the platform moves. The plane formed by the electric chain hoist chain, the drill frame and the center of gravity of the platform must be parallel to the cross-section of the arch frame.

[0028] The first hinged slider and the arch back flange are locked and loosened with the arch frame by tightening and loosening the screws on the lower side of the web plate. When locked, the gap between the arch back and the slider can be further wedged with a wedge block to fix the slider.

[0029] The arch frame is designed with vertical sections of arch frame connected to the ground at the outermost hole position of the arch waist.

[0030] The four landing parts of the two arch frames are all connected by steel plates. The connecting steel plates are bolted together by anchor rods that are vertically driven and anchored in the concrete leveling layer and the surrounding rock below. The tail ends of the five steel frames of the radial reaction support are all anchored in the reinforced concrete pier. The reinforced concrete pier is anchored on the concrete ground and the surrounding rock below the horizontal projection plane, with the tail ends of the anchor rods exposed and anchored in the reinforced concrete pier.

[0031] The beneficial effects of this invention are as follows:

[0032] 1. Both sets of hinged sliders of multiple drilling platforms can be directly placed on the arch frame. The bottom and tail of the arch frame are equipped with reaction and anchoring systems for the lower concrete and surrounding rock, making the load-bearing system more stable. This avoids the need to construct larger-sized and larger-volume steel reaction frames or reinforced concrete reaction walls, thus saving project costs.

[0033] 2. The measurement and positioning method described in this invention uses CAD to simulate the location and elongation parameters of each component during drilling at each hole position in advance, and marks and records them. This allows for the rapid target positioning of each component of the frame, avoiding the problems of inaccurate positioning and low positioning efficiency caused by the uncertainty of adjusting the slider position and parameters of each telescopic component in the construction site when only the height of the measured hole position and the axis are used as reference lines.

[0034] 3. A set of parallel pipe fitting synchronous lifting frames set up on each platform enables independent hoisting and installation of pipe fittings on each drilling rig without interfering with other boreholes, further reducing the workload of personnel and improving construction efficiency.

[0035] 4. This invention provides a method for simultaneous construction of three drilling rigs in different areas, which improves the construction efficiency of a single pipe curtain working face per unit time and saves construction time. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the structure of the present invention.

[0037] Wherein: 1—Drilling rig; 2—Electric hydraulic screw; 3—Oil cylinder; 4—Drilling rig base; 4-1—Platform; 5-1—Vertical support steel component; 5-2—Horizontal guide rail steel component; 5-3—Lifting equipment; 5-4—End sealing and limiting steel plate; 5-5—Hook; 6-1—First hinged slider; 6-2—Second hinged slider; 7—Arch frame; 8—Steel connecting rod; 9—Electric chain hoist; 10—Reaction steel; 11—Reinforced concrete pier; 12—Concrete construction platform; 13—Drilling hole; 14—Screw. Detailed Implementation

[0038] The invention will be further described below with reference to the accompanying drawings.

[0039] like Figure 1 As shown, a multi-point reaction force assisted construction platform for pipe jacking includes a pipe jacking drill 1, a synchronous electric hydraulic screw 2, a hydraulic screw cylinder 33 fixedly connected to a pipe jacking drill 4 base, a platform 4-1 mounted and fixed to the pipe jacking drill 4, a pipe lifting frame fixed on the platform 4-1, two sets of hinged sliders supporting and adjusting the platform, two front and rear arc-shaped arch frames 7 supporting the two sets of hinged sliders, the hinged sliders being directly fitted onto the back flange plate 7-1 of the arc-shaped arch frame 7, five longitudinal steel connecting rods 8 longitudinally fixedly connecting the web plates of the two arch frames, a chain electric hoist 9 connecting the steel connecting rods 8 and the platform 4-1, radial reaction steel 10 connecting the web plate of the rear arc-shaped arch frame, a reinforced concrete pier 11 at the tail of the reaction steel 10, and a concrete construction platform 12 supporting the bottom of the arc-shaped arch frame 7.

[0040] The line connecting the front and rear arch back points corresponding to the angle around the center of the arch frame 7 in the cross-sectional projection is parallel to the axis of the designed borehole 13.

[0041] The two sets of hinged sliders of the support platform 4-1 are divided into a first hinged slider 6-1 and a second hinged slider 6-2. The first hinged slider 6-1 is directly connected to the platform 4-1 by a rotating hinge and is fitted onto the web of the arc-shaped arch frame. The second hinged slider 6-2 is hinged to the lower part of the platform 4-1 through an adjustable screw 14. When the platform 4-1 is pulled by the electric chain hoist 9, the first hinged slider 6-1 can slide along the back flange of the arch frame with the platform 4-1. The plane formed by the chain of the electric chain hoist 9, the center of gravity of the drill frame and the platform 4-1 should be parallel to the plane of the arc-shaped arch frame.

[0042] The two sets of hinged sliders and the arch back flange plate are locked and loosened by the screws 16 on the underside of the flange plate. When locked, the gap between the arch back and the two sets of hinged sliders can be further wedged with wedge blocks to fix the two sets of hinged sliders.

[0043] The pipe lifting frame includes a vertical support steel member 5-1 and a horizontal guide rail steel member 5-2 fixedly connected to the top of the vertical support steel member 5-1. A horizontal sliding lifting device 5-3 is installed on the horizontal guide rail steel member 5-2. The lifting device 5-3 is installed on a platform 4-1 on one side of the screw hinge support and is arranged parallel to each other in both large and small mileage directions. End-sealing and limiting steel plates 5-4 are installed at both ends of the horizontal guide rail steel member 5-2. The distance between the horizontal projection point of the lifting hook 5-5 of the lifting device and the edge of the platform 4-1 is greater than the radius of the pipe curtain borehole 13 by 10 cm or more. The distance between two horizontal guide rail steel members 5-2 on the same platform 4-1 is less than the length of the pipe section being lifted.

[0044] The arch frame 7 has a vertical section of arch frame connected to the ground at the outermost hole of the arch waist, so as to free up more space for personnel to carry out construction.

[0045] The four landing parts of the two arch frames 7 are all connected by steel plates 7-3. The connecting steel plates 7-3 are bolted together by anchor rods that are vertically driven and anchored in the concrete construction platform 12 and the surrounding rock below. The tail ends of the five steel frames of the radial reaction steel 10 are all anchored in the reinforced concrete pier 11. The reinforced concrete pier is anchored on the concrete construction platform 12 and the surrounding rock below, and the tail ends of the anchor rods are exposed and anchored in the reinforced concrete pier 11.

[0046] A method for multi-point reaction force-assisted drilling of long pipe curtains based on software simulation positioning includes the following steps:

[0047] Step 1: Install the long pipe curtain multi-support reaction force auxiliary construction platform and three drilling rigs 1, which are numbered Z1, Z2 and Z3 from left to right respectively;

[0048] Step 2: Drilling zoning. The drilling positions of the drilling rigs are divided into zones. The zoning rule is that each drilling rig 1 is responsible for drilling 13 within one-third of the circumference of the working face. When the drilling 13 is at the boundary line of the zone, the construction of the drilling 13 is assigned to the preceding drilling rig.

[0049] Step 3: Measurement and layout, including the layout of the center point of borehole 13 designed on the working face, the four quadrant points of the borehole wall circumference, and the drilling rig positioning points. Before drilling, five control points for each designed borehole position are marked on the working face using measuring instruments. Simultaneously, CAD software is used to simulate the drilling rig positioning points for all borehole positions on the working face, including the positions of the first and second hinged slider control points on the arch frame. For each drilling rig on the same ring steel frame, from borehole 1 to borehole i, the two sliders are marked at k1z1j1 and k1z1j2 respectively. The extension length of the inclined brace screw k1z1xc1 and the extension length of the electric hydraulic screw 2 caused by the fine-tuning cylinder 3 on platform 4 k1z1sg1 are also recorded. The positioning point of platform 4 for the second borehole position is also recorded. Set the corresponding marked points k2z1j1 and k2z1j2 for the two sliders, and record the extension length k2z1xc2 of the diagonal brace screw 14, and the extension length k2z1sg2 of the electric hydraulic screw 2 caused by the fine-tuning cylinder 3 on the platform 4; continue in this manner until the last hole is positioned on the platform 4, set the corresponding marked points kiz1j1 and kiz1j2 for the two sliders, and record the extension length kiz1xci of the diagonal brace screw 14, and the extension length z1sgi of the electric hydraulic screw 2 caused by the fine-tuning cylinder 3 on the platform 4.

[0050] Similarly, z2 and z3 correspond to the first and second slider marking points of each drill hole 13, namely kiz2j1, kiz2j2 and kiz3j1, kiz3j2, respectively. At the same time, the extension lengths of the inclined support screw 14 are recorded as z2xci, z3xci, and the extension lengths of the electric hydraulic screw 2 caused by the fine-tuning cylinder 3 on the platform 4 are z2sgi, z3sgi.

[0051] Step 4: Drill Rig Positioning and Reinforcement. During positioning, the electric chain hoist 9 pulls the ring on the platform 4, traction is used to pull the first articulated slider 6-1, aligning its control point with the control point kizij1 of the hole to be drilled. Simultaneously, a hand-operated hoist pulls the second articulated slider 6-2 on the front and rear arch frames 7 to align with the control point kizij2. Then, the fastening screws 16 on the four sliders used to lock the sliders to the back flange of the arch frame 7 are tightened, and wedge blocks are placed in the gap between the sliders and the back of the arch frame 7 to further ensure slider locking. Subsequently, the lead screw 14 on the upper part of the second articulated slider 6-2 is rotated to extend by a length of zixci to keep the platform 4 horizontal. The extension of the four lead screw cylinders 3 on the drill rig is adjusted by a length of zisgi to align the end of the drill rod axis of the drill rig 1 with the measured hole position.

[0052] Step 5: Start the drilling machine to drill. During the drilling process, keep the electric chain hoist 9 under tension to further ensure the stability of the platform 4 under multi-directional forces. At the same time, the drilling sequence is as follows: each drilling machine 1 operates in a clockwise order from one side of its section to the other.

[0053] Step 6: Pipe Section Lifting and Installation; When drilling hole 13 is completed and pipe sections need to be installed, the drilling rigs 1 on both sides of the arch frame use an excavator to place the pipe section below the hook 5-5 along the tunnel direction, keeping the pipe axis parallel to the tunnel axis. The lifting trolley 5-3 on the platform 4 is started to lift the steel pipe simultaneously, raising it so that the pipe axis is aligned with the hole height. Then, it is moved laterally to the corresponding hole position, and the pipe section is lowered for pipe installation, jacking, or welding assembly. At the same time, when the pipe section is being lifted, if there is a circumferentially connected electric chain hoist 9 blocking the chain below the platform 4, the electric chain hoist 9 can be temporarily removed when the hinged slider of the drilling rig platform 4 connected by the chain is in the locked state to avoid obstructing the lifting of the pipe section. After the pipe section is installed, the electric chain hoist 9 can be restored to the taut state.

[0054] Step 7: Repeat steps 4 to 6 to complete the drilling and pipe laying of all borehole locations.

Claims

1. A method for multi-point reaction force-assisted drilling of long pipe curtains based on software simulation positioning, characterized in that, Includes the following steps: Step 1: Install the long pipe curtain multi-point reaction auxiliary construction platform. Install three arch frames on the concrete construction platform, and install one drilling rig on each arch frame. The three drilling rigs are numbered Z1, Z2 and Z3 from left to right. Step 2, Drilling Zones: The drilling rigs are divided into zones based on the area they are responsible for drilling. The zone rule is that each drilling rig is responsible for drilling within one-third of the circumference of the working face where the designed hole is located. When a hole is located at the boundary line of a zone, the construction of that hole is assigned to the preceding drilling rig. Step 3: Use CAD software to simulate the working face and design the center point of the hole, the four quadrant points of the hole wall circumference, and the drilling rig positioning points for layout. Step 31: Draw a face diagram in CAD software based on the actual face data, and mark 5 control points for each designed hole position on the face diagram in combination with the face data measured by the measuring instrument. The 5 control points refer to the center point of each borehole and the 4 quadrant points of the borehole circumference. Step 32: Based on the control points described in Step 31, use CAD software to draw the positions of the control points of the first and second hinged sliders on the first arch frame when the drilling rig is positioned at all holes on the face. The control points are marked as k1z1j1 and k1z1j2 respectively. At the same time, the extension length of the inclined brace screw is recorded as k1z1xc1, and the extension length of the fine-tuning cylinder screw on the platform is recorded as k1z1sg1. Step 33: When positioning the second hole, the first and second hinged sliders on the first arch frame are marked with points k2z1j1 and k2z1j2 respectively. At the same time, the extension length of the diagonal brace screw k2z1xc2 and the extension length of the fine-tuning cylinder screw on the platform k2z1sg2 are recorded. Similarly, when positioning the i-th hole, the two sets of hinged sliders are marked with points kiz1j1 and kiz1j2 respectively. At the same time, the extension length of the diagonal brace screw kiz1xci and the extension length of the fine-tuning cylinder screw on the platform z1sgi are recorded. Step 34: The first and second hinge slider marking points on each arch frame of drilling rigs z2 and z3 are the same as steps 31, 32 and 33, respectively kiz2j1, kiz2j2 and kiz3j1, kiz3j2, and the extension lengths of the diagonal brace screws are z2xci, z3xci and the extension lengths of the fine adjustment cylinder screws on the platform are z2sgi, z3sgi; Step 4, Drill Rig Positioning and Reinforcement: During drilling rig positioning, use a chain electric hoist to pull the first arch frame, traction of the first drilling rig platform to make the control point of the first articulated slider coincide with the control point kizij1 of the hole position marked in the CAD simulation. Simultaneously, use a jack or hand-operated hoist to pull the second articulated slider to coincide with the control point kizij2. Then tighten the fastening bolts on both sets of sliders used to lock the sliders and I-beams, and place wedge blocks on the back of the sliders and arch frame to further ensure slider locking. Then, according to the data from the CAD simulation, rotate the lead screw on the upper part of the first articulated slider by the length zixci to keep the platform horizontal. Adjust the extension of the four hydraulic cylinders on the drilling rig by zisgi to align the end of the drill rod axis with the measured hole position; the same applies to drilling rigs z2 and z3. Step 5: During the drilling process, keep the hand chain hoist under tension at all times to further ensure the stability of the platform under multi-directional forces. At the same time, the drilling sequence during the drilling process should be carried out by each drilling machine in a clockwise order from one side to the other in its section. Step 6, Pipe Section Lifting and Installation: When drilling is completed and pipe sections need to be installed, the drilling rigs on both sides of the arch frame use an excavator to place the pipe section under the hook along the tunnel direction, keeping the pipe axis parallel to the tunnel axis. The crane trolley on the platform is started to lift the steel pipe synchronously, raising it so that the pipe axis is consistent with the height of the hole. Then, it is moved laterally to the corresponding hole position, and the pipe section is lowered for pipe installation, jacking or welding assembly. At the same time, when there is a circumferentially connected hand chain hoist chain blocking the platform plate under the pipe section during pipe section lifting, the electric chain hoist is temporarily removed when the two sets of hinged sliders of the drilling rig platform connected by the chain are locked to avoid blocking the lifting of the pipe section. After the pipe section is installed, the electric chain hoist is restored to the tensioned state. Step 7: Repeat steps 4 to 6 to complete the drilling and pipe laying construction for all borehole locations.

2. The method for multi-point reaction force-assisted drilling of long pipe curtains based on software simulation positioning according to claim 1, characterized in that, The two sets of hinged sliders of the multi-point reaction force assisted construction platform for pipe curtain are divided into a first hinged slider and a second hinged slider. The first hinged slider is connected to the platform plate by a rotating hinge and is fitted onto the back flange plate of the arc-shaped arch frame. The second hinged slider is hinged to the lower part of the platform plate through an adjustable screw. The first hinged slider and the second hinged slider are supported and connected to the platform plate by screw hinge.

3. The method for multi-point reaction force-assisted drilling of long pipe curtains based on software simulation positioning according to claim 1, characterized in that, The multi-point reaction force assisted construction platform for pipe curtain includes a fixed pipe lifting frame, a pipe curtain drilling rig, a drilling rig base, and a synchronous electric hydraulic screw. The base of the pipe curtain drilling rig is fixed with vertical hydraulic screw cylinders at the four corners. As the extension and retraction of the hydraulic screw cylinders are adjusted, the base of the drilling rig is raised and lowered, so that the drill rod can reach the required drilling height.

4. The method for multi-point reaction force-assisted drilling of long pipe curtains based on software simulation positioning according to claim 1, characterized in that, The multi-point reaction force auxiliary construction platform for the pipe curtain is connected to the front and rear arch frames. Five longitudinal steel connecting rods connect the web plates of the two arch frames, tie steel connecting rods, the electric chain hoist of the platform, and the radial reaction steel connecting the web plate of the rear arch frame.

5. The method for multi-point reaction force-assisted drilling of long pipe curtains based on software simulation positioning according to claim 3, characterized in that, The pipe lifting frame includes a vertical support steel member and a horizontal guide rail steel member fixedly connected to the top of the vertical support steel member. A horizontal sliding lifting device is installed on the horizontal guide rail steel member. The lifting device is installed on a platform on one side of the screw hinge support and is arranged parallel in both large and small mileage directions. End-sealing and limiting steel plates are installed at both ends of the horizontal guide rail. The distance between the horizontal projection point of the lifting hook of the lifting device and the edge of the platform is greater than 10cm or more than the radius of the pipe curtain drilling. The distance between the two horizontal guide rails on the same platform is less than the length of the lifting pipe section.

6. The method for multi-point reaction force-assisted drilling of long pipe curtains based on software simulation positioning according to claim 2, characterized in that, The line connecting the arch back points at the same angle in the cross-sectional projection of the aforementioned arc-shaped arch frame is parallel to the center line of the designed borehole axis.

7. The method for multi-point reaction force-assisted drilling of long pipe curtains based on software simulation positioning according to claim 1, characterized in that, When the electric chain hoist pulls the platform, the first hinged slider can slide along the flange of the I-beam arch as the platform moves. The plane formed by the electric chain hoist chain, the drill frame and the center of gravity of the platform must be parallel to the cross-section of the arch frame.

8. The method for multi-point reaction force-assisted drilling of long pipe curtains based on software simulation positioning according to claim 1, characterized in that, The first hinged slider and the arch back flange are locked and loosened with the arch frame by tightening and loosening the screws on the lower side of the web plate. When locked, the gap between the arch back and the hinged slider is further wedged with a wedge block to fix the slider.

9. The method for multi-point reaction force-assisted drilling of long pipe curtains based on software simulation positioning according to claim 2, characterized in that, The arch frame is designed with vertical sections of arch frame connected to the ground at the outermost hole position of the arch waist.

10. A method for multi-point reaction force-assisted drilling of long pipe curtains based on software simulation positioning according to claim 4, characterized in that, The four landing parts of the two arch frames are all connected by steel plates. The connecting steel plates are bolted together by anchor rods that are vertically driven and anchored in the concrete leveling layer and the surrounding rock below. The tail ends of the five steel frames of the radial reaction support are all anchored in the reinforced concrete pier. The reinforced concrete pier is anchored on the concrete ground and the surrounding rock below the horizontal projection plane, with the tail ends of the anchor rods exposed and anchored in the reinforced concrete pier.

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