Device for side-unfolded weight-increasing type torpedo anchor and working method

Abstract

The invention provides a device and a working method of a side face unfolding weight increasing type torpedo anchor. The device comprises an anchor body, a working anchor chain, an unfolding panel and the like, the middle of the anchor body adopts a side unfolding design, and when the working anchor chain is pulled to a middle area, the unfolding panel and a soil body are pushed by a tension transmission structure to be squeezed into a hollow area and a soil holding frame, and the panel is assisted to be continuously unfolded. The unfolding panel is connected with the anchor body through a hinge, has a corresponding area and a soil holding frame, can be unfolded to a control angle, and can be rotated to the optimal orientation before being thrown. The working anchor chain and the lifting chain are matched to enable the torpedo anchor to be in a two-point tension service state. The working method comprises the steps of putting, pulling, unfolding, forming a service state and the like, through the design, the anti-pulling stress area can be increased, the self weight can be increased, the working state that only the tail end of a traditional torpedo anchor is pulled is changed, the anti-pulling bearing capacity and stability of the torpedo anchor are effectively improved, and the torpedo anchor has important application value in the anchoring field of ocean engineering and the like.

Description

Technical Field

[0001] The invention belongs to the technical field of mooring foundation devices, and in particular relates to a device and a working method of a side-expanded weighted torpedo anchor. Background Art

[0002] With the increasing global demand for energy, the vast "blue land" of the ocean is gradually becoming a new frontier for resource development. As a major maritime country, my country has been forging ahead on the road of marine resource exploration and continuing to advance into the deep sea, which undoubtedly brings unprecedented challenges and opportunities to marine engineering equipment, especially offshore oil platforms and their anchoring foundations. Torpedo anchors have become deep-sea anchoring structures with great application prospects due to their advantages of simple and fast installation and low manufacturing cost, injecting strong impetus into the deep development of marine resources. The current problem is that torpedo anchors penetrate into the soil by their own gravity. However, in terms of the realization mechanism of their pull-out performance, it mainly depends on the friction resistance generated by the interaction between the side walls of the anchor body and the surrounding soil, as well as the overburden pressure borne by the top of the anchor body. There is still great room for improvement and enhancement in pull-out performance.

[0003] The search found that the application number CN202311447990.9 "A deep-sea torpedo anchor with integrated power generation and its construction method" provides a new design device that injects concrete into the inner cavity of the torpedo anchor, uses its gravity to increase the depth of the torpedo anchor, and forms a whole inside and outside the anchor body under the action of concrete to increase the friction resistance. This device mainly uses the gravity of concrete to increase the friction resistance between the anchor body and the soil. The capacity of the inner cavity of the anchor body to accommodate concrete is limited, and the gravity that can be provided is also limited. In addition, it is necessary to consider the erosion of seawater on concrete, so there is still room for improvement in pull-out resistance.

[0004] The search found that the application number is CN202410428304.1 "A torpedo anchor and its installation and recovery method" which improves the pull-out bearing performance of the torpedo anchor by setting multiple nozzles on the anchor head and several ejectors on the end of the anchor body. Compared with ordinary torpedo anchors, this method only adds multiple ejectors, and the penetration depth and pull-out resistance are restricted by the number of ejectors and the ejection capacity.

[0005] At present, most of the existing technical means focus on optimizing and improving the bearing capacity of a certain part of the torpedo anchor, but fail to take a holistic perspective, consider the overall situation and comprehensively strengthen the comprehensive bearing performance of the torpedo anchor. In addition, due to the complex soil environment, the unfolding structure is likely to encounter greater resistance. The resistance of the soil layer should be correctly estimated, and a reasonable and effective device should be designed so that the unfolding structure can be fully unfolded in the soil. Summary of the invention

[0006] The purpose of the present invention is to solve the shortcomings and defects of the prior art, and to provide a device and working method for a side-expandable weight-added torpedo anchor. The unfolding panel is connected to the anchor body through a hinge, has a corresponding area and a soil-pocket frame, can be unfolded to a controlled angle, and can be rotated to the optimal orientation before being deployed. The working anchor chain and the suspension chain cooperate to make the torpedo anchor in a two-point tension service state. The working method covers the steps of deployment, pulling, unfolding and forming a service state. Through this design, the pull-out force-bearing area can be increased, the deadweight can be increased, and the traditional torpedo anchor can be changed. The working state of only the tail end of the torpedo anchor is changed, and the pull-out bearing capacity and stability of the torpedo anchor are effectively improved. It has important application value in anchoring fields such as marine engineering.

[0007] A device for a side-expanding weight-added torpedo anchor comprises an anchor body 1, a working anchor chain 2, an expansion panel 3, a soil pocket frame 4, a tension transmission structure 5, a suspension chain 6, a sliding sleeve 7, a temporary buckle 8, a wall groove 9, a hinge 10, and a limit block 11;

[0008] The middle area of ​​the anchor body 1 of the torpedo anchor adopts a side expansion design. After expansion, the hollow area in the middle of the anchor body allows the surrounding soil to squeeze into the hollow area in the middle of the anchor body under the surrounding pressure;

[0009] The side deployment design includes: when the pulling point of the working anchor chain 2 moves to the middle point of the area, the deployment panel 3 is pushed outward through the tension transmission structure 5 inside the anchor body, and at the same time, the soil around the anchor body is squeezed into the hollow area in the middle of the anchor body and the soil pocket frame 4 of the deployment panel 3 under the surrounding pressure, and as the surrounding soil continues to enter the soil pocket frame of the deployment panel in the hollow area of ​​the anchor body, the deployment panel bears a greater soil weight load and the tension load of the working anchor chain, and the soil outside the deployment panel partially enters the hollow area in the middle of the anchor body and the soil pocket frame, thereby being unloaded, which is more conducive to further continuous deployment of the deployment panel;

[0010] The tension transmission structure 5 is composed of a high-pressure spring 5-1, a push rod 5-2, a limit rod 5-3, a limit pin 5-4, a limit hole 5-5, a pull rope 5-6, and a push head 5-7. When the pulling point of the working anchor chain 2 moves to the middle point of the area, the limit pin is pulled out of the limit hole, and the high-pressure spring freely expands and contracts along the limit rod, pushing the push rod to move outward and flipping the unfolding panel outward and unfolding it; the high-pressure spring is installed on the push rod, and is limited to the area below the limit hole by the limit pin, so that it is in a compressed and force-accumulating state; the limit pin is initially installed in the limit hole on the limit rod, and the limit pin is connected to the working anchor chain by a pull rope; the pull rope is initially not subjected to tension. When the working anchor chain is pulled, the pulling point moves to the middle area of ​​the anchor body. During this process, the pull rope is gradually tightened and finally pulls the limit pin out of the limit hole, thereby allowing the high-pressure spring to freely expand and contract along the limit rod;

[0011] The unfolding panel is a part of the middle area of ​​the pile body, divided into two pieces, and connected to the non-expanding area of ​​the anchor body through 2 to 3 hinges (10) distributed longitudinally; the area of ​​the unfolding panel is 1 / 3 to 1 / 2 of the surface area of ​​the cylindrical anchor body at the corresponding height; in the initial penetration stage, the unfolding panel is not unfolded, so that the torpedo anchor can penetrate into the formation in the shape of a cylinder; in the pulling and unfolding stage, the limit pin is pulled out of the limit hole through the working anchor chain, and the high-pressure spring pushes the push rod to unfold it; at the same time, under the pulling force of the working anchor chain, it continues to unfold to a larger angle until the push head is pulled to the highest point of the limit rod and is prevented from continuing to slide by its end; the maximum unfolding angle of the unfolding panel is controlled by the length of the limit rod, and the push head is Under the action of the tension of the working anchor chain, it slides until it reaches the highest point of the limit rod and is stopped by the end of the limit rod; the unfolding panel is provided with a soil pocket frame, so that after it is unfolded, the soil entering the soil pocket frame is provided with constraints, so that the soil around the anchor body can enter the hollow area in the middle of the torpedo anchor and the soil pocket frame of the unfolding panel, and the soil is prevented from freely flowing out from the edge of the unfolding panel, thereby increasing the contribution of soil weight to the pull-out bearing capacity of the torpedo anchor; after the unfolding panel is unfolded laterally, the effective area of ​​the torpedo anchor is increased; before the torpedo anchor is released, the torpedo anchor is rotated to rotate the unfolding panel to face the tension direction of the anchor chain in the service stage, so that the normal direction of the working surface of the unfolded panel after unfolding is consistent with the tension direction of the working anchor chain, so as to maximize the contribution of the unfolding panel to improving the bearing capacity of the torpedo anchor;

[0012] The working anchor chain is initially embedded in the wall groove 9 at the rear end of the anchor body of the torpedo anchor, and is fixed to the midpoint of the tail end of the torpedo anchor with a temporary buckle 8, so as to ensure that the torpedo anchor is in a vertical state during the hoisting and delivery of the torpedo anchor; the temporary buckle is pulled out from the tail end of the torpedo anchor by tilting the working anchor chain; the working anchor chain is gradually pulled upward to separate from the midpoint of the tail end of the torpedo anchor and the wall groove at the rear end of the anchor body, so that the torpedo anchor is in a re-tensioned state;

[0013] One end of the chain is fixed near the midpoint of the tail end of the torpedo anchor, and the other end is slidably connected to the working anchor chain through a sliding sleeve. During the lifting and dropping process, the chain is initially in a relaxed state without stress. After the working anchor chain is pulled out of the wall groove at the midpoint of the tail end of the torpedo anchor and the rear end of the anchor body, the chain is in a tensioned state, and the sliding sleeve at its end slides along the working anchor chain until it encounters a limit block 8 and stops sliding, so that the torpedo anchor is in a service working state with tension at two points.

[0014] A method for working a side-deployed weighted torpedo anchor is provided, wherein the device of the side-deployed weighted torpedo anchor is connected, and the specific steps are as follows:

[0015] ① At the designated target location, the working anchor chain 2 is hoisted, the torpedo anchor is rotated to rotate the deployment panel to face the tension direction of the working anchor chain in the service stage, and then the torpedo anchor is dropped vertically, and the torpedo anchor is finally sunk to the designated location;

[0016] ② Gradually pull the working anchor chain upwards to separate it from the rear end of the anchor body, move the tension point to the middle of the anchor body, pull the limit pin out of the limit hole, thereby allowing the high-pressure spring to freely expand and contract along the limit rod, and push the push rod to expand the deployment panel to a certain angle;

[0017] ③ With the continuous pulling of the working anchor chain and the weight of the soil entering the hollow area of ​​the anchor body and the soil frame of the unfolding panel, the unfolding panel continues to unfold until the movement of the push head is constrained by the end of the limit rod and stops sliding. The unfolding panel unfolds to the maximum angle. During this process, the lifting chain at the rear end of the anchor body is gradually tightened, and the sliding sleeve 7 at its end slides along the working anchor chain until it encounters the limit block 11 and stops sliding;

[0018] ④ At this time, the anchor body forms a two-point tension service working state under the simultaneous action of the lifting chain and the working anchor chain, which greatly improves the stability of the anchor body posture and the rationality of the force direction, and changes the traditional torpedo anchor tail end tension working state. The two-point tension service working state improves the torpedo anchor's pull-out bearing capacity and pull-out stability.

[0019] Furthermore, the expanded panel after side expansion increases the pull-out bearing area of ​​the torpedo anchor, and the normal direction of its working surface is consistent with the tension direction of the working anchor chain, so that the contribution of the expanded panel to improving the pull-out bearing capacity of the torpedo anchor is maximized; the expanded panel is provided with a soil frame to incorporate the soil around the anchor body and the hollow area in the middle of the anchor body, thereby increasing the deadweight of the anchor body and further improving the pull-out bearing capacity of the torpedo anchor.

[0020] After the torpedo anchor is deployed laterally, the anchor body forms a two-point tension service working state under the simultaneous action of the lifting chain and the working anchor chain, which greatly improves the stability of the anchor body posture and the rationality of the force direction, and changes the traditional torpedo anchor's working state of tension only at the tail end. The two-point tension service working state improves the torpedo anchor's pull-out bearing capacity and pull-out stability.

[0021] Beneficial Effects

[0022] The present invention provides a device and working method for a side-expandable weight-added torpedo anchor. It includes components such as an anchor body, a working anchor chain, and an expansion panel. The middle part of the anchor body adopts a side-expanding design. When the working anchor chain is pulled to the middle area, the expansion panel is pushed by the tension transmission structure, and the soil is squeezed into the hollow area and the soil pocket frame, which helps the panel to continue to expand. The expansion panel is connected to the anchor body through a hinge, has a corresponding area and a soil pocket frame, can be expanded to a controlled angle, and can be rotated to the optimal orientation before being deployed. The working anchor chain and the suspension chain cooperate to make the torpedo anchor in a two-point tension service state. The working method covers the steps of deployment, pulling, expansion, and forming a service state. Through this design, the pull-out force-bearing area can be increased, the deadweight can be increased, and the traditional torpedo anchor can change its working state of only the tail end being pulled, effectively improving the pull-out bearing capacity and stability of the torpedo anchor, which has important application value in anchoring fields such as marine engineering.

[0023] The advantages of the present invention are as follows:

[0024] ① The unfolded panel is a key component for improving the pull-out performance. It not only effectively increases the pull-out force-bearing area, but also takes into account the convenience of initial penetration. At the same time, a soil pocket frame is set to further improve the pull-out bearing capacity of the torpedo anchor and enhance the overall performance;

[0025] ②The tension transmission structure is composed of multiple components such as high-pressure springs, push rods, and limit rods. The entire process is exquisitely designed, and the various components work closely together to reliably and efficiently achieve full deployment of the deployment panel, ensuring stable operation even in complex marine conditions;

[0026] ③ In terms of working methods, after being deployed, the unfolding panel is gradually triggered to unfold by pulling the working anchor chain until the maximum angle is reached. During the process, the suspension chain is tightened in time, and the working anchor chain is coordinated to make the torpedo anchor in a two-point tension service state. Ensure that each component plays a role accurately at different stages, effectively change the limitation of traditional torpedo anchors that only the tail end is tensile, and greatly improve the pull-out bearing capacity and stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A side view of the unfolded panel of the present invention in a fully unfolded state in service and under tension at two points;

[0028] Figure 2 It is a schematic diagram of the anchor body structure of the unfolded panel in the initial closed state according to the present invention;

[0029] Figure 3 It is a side view of the tension transmission structure of the present invention in a compressed state;

[0030] Figure 4 It is a schematic diagram of the anchor body structure in which the unfolded panel of the present invention is in a fully unfolded state;

[0031] Figure 5 It is a schematic diagram of the tension transmission structure of the present invention in a compressed state;

[0032] Figure 6 It is a schematic diagram of the tension transmission structure of the present invention in a pushed-open state.

[0033] Description of reference numerals: anchor body 1, working anchor chain 2, unfolding panel 3, soil pocket frame 4, tension transmission structure 5, lifting chain 6, sliding sleeve 7, temporary buckle 8, wall groove 9, hinge 10, limit block 11. The tension transmission structure 5 includes: high-pressure spring 5-1, push rod 5-2, limit rod 5-3, limit pin 5-4, limit hole 5-5, pull rope 5-6, and push head 5-7. DETAILED DESCRIPTION

[0034] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0035] like Figure 1 As shown, a device for a side-expanding weight-added torpedo anchor comprises an anchor body 1, a working anchor chain 2, an expansion panel 3, a soil pocket frame 4, a tension transmission structure 5, a suspension chain 6, a sliding sleeve 7, a temporary buckle 8, a wall groove 9, a hinge 10, and a limit block 11;

[0036] One end of the chain is fixed near the midpoint of the tail end of the torpedo anchor, and the other end is slidably connected to the working anchor chain through a sliding sleeve. During the lifting and dropping process, the chain is initially in a relaxed state without stress. After the working anchor chain is pulled out of the wall groove at the midpoint of the tail end of the torpedo anchor and the rear end of the anchor body, the chain is in a tensioned state, and the sliding sleeve at its end slides along the working anchor chain until it encounters a limit block 8 and stops sliding, so that the torpedo anchor is in a service working state with tension at two points.

[0037] A method for working a side-deployed weighted torpedo anchor is provided, wherein the device of the side-deployed weighted torpedo anchor is connected, and the specific steps are as follows:

[0038] ① At the designated target location, the working anchor chain 2 is hoisted, the torpedo anchor is rotated to rotate the deployment panel to face the tension direction of the working anchor chain in the service stage, and then the torpedo anchor is dropped vertically, and the torpedo anchor is finally sunk to the designated location;

[0039] ② Gradually pull the working anchor chain upwards to separate it from the rear end of the anchor body, move the tension point to the middle of the anchor body, pull the limit pin out of the limit hole, thereby allowing the high-pressure spring to freely expand and contract along the limit rod, and push the push rod to expand the deployment panel to a certain angle;

[0040] ③ With the continuous pulling of the working anchor chain and the weight of the soil entering the hollow area of ​​the anchor body and the soil frame of the unfolding panel, the unfolding panel continues to unfold until the movement of the push head is constrained by the end of the limit rod and stops sliding. The unfolding panel unfolds to the maximum angle. During this process, the lifting chain at the rear end of the anchor body is gradually tightened, and the sliding sleeve 7 at its end slides along the working anchor chain until it encounters the limit block 11 and stops sliding;

[0041] ④ At this time, the anchor body forms a two-point tension service working state under the simultaneous action of the lifting chain and the working anchor chain, which greatly improves the stability of the anchor body posture and the rationality of the force direction, and changes the traditional torpedo anchor tail end tension working state. The two-point tension service working state improves the torpedo anchor's pull-out bearing capacity and pull-out stability.

[0042] like Figure 2 As shown, the middle area of ​​the anchor body 1 of the torpedo anchor adopts a side expansion design. After expansion, the hollow area in the middle of the anchor body allows the surrounding soil to squeeze into the hollow area in the middle of the anchor body under the surrounding pressure;

[0043] The working anchor chain is initially embedded in the wall groove 9 at the rear end of the anchor body of the torpedo anchor, and is fixed to the midpoint of the tail end of the torpedo anchor with a temporary buckle 8, so as to ensure that the torpedo anchor is in a vertical state during the hoisting and delivery of the torpedo anchor; the temporary buckle is pulled out from the tail end of the torpedo anchor by tilting the working anchor chain; the working anchor chain is gradually pulled upward to separate from the midpoint of the tail end of the torpedo anchor and the wall groove at the rear end of the anchor body, so that the torpedo anchor is in a re-tensioned state;

[0044] The unfolding panel is a part of the middle area of ​​the pile body, divided into two pieces, and connected to the non-expanding area of ​​the anchor body through 2 to 3 hinges (10) distributed longitudinally; the area of ​​the unfolding panel is 1 / 3 to 1 / 2 of the surface area of ​​the cylindrical anchor body at the corresponding height; in the initial penetration stage, the unfolding panel is not unfolded, so that the torpedo anchor can penetrate into the formation in the shape of a cylinder; in the pulling and unfolding stage, the limit pin is pulled out of the limit hole through the working anchor chain, and the high-pressure spring pushes the push rod to unfold it; at the same time, under the pulling force of the working anchor chain, it continues to unfold to a larger angle until the push head is pulled to the highest point of the limit rod and is prevented from continuing to slide by its end; the maximum unfolding angle of the unfolding panel is controlled by the length of the limit rod, and the push head is Under the action of the tension of the working anchor chain, it slides until it reaches the highest point of the limit rod and is stopped by the end of the limit rod; the unfolding panel is provided with a soil pocket frame, so that after it is unfolded, the soil entering the soil pocket frame is provided with constraints, so that the soil around the anchor body can enter the hollow area in the middle of the torpedo anchor and the soil pocket frame of the unfolding panel, and the soil is prevented from freely flowing out from the edge of the unfolding panel, thereby increasing the contribution of soil weight to the pull-out bearing capacity of the torpedo anchor; after the unfolding panel is unfolded laterally, the effective area of ​​the torpedo anchor is increased; before the torpedo anchor is released, the torpedo anchor is rotated to rotate the unfolding panel to face the tension direction of the anchor chain in the service stage, so that the normal direction of the working surface of the unfolded panel after unfolding is consistent with the tension direction of the working anchor chain, so as to maximize the contribution of the unfolding panel to improving the bearing capacity of the torpedo anchor;

[0045] like Figure 3 , 5 As shown in , 6, the tension transmission structure 5 is composed of a high-pressure spring 5-1, a push rod 5-2, a limit rod 5-3, a limit pin 5-4, a limit hole 5-5, a pull rope 5-6, and a push head 5-7. When the pulling point of the working anchor chain 2 moves to the middle point of the area, the limit pin is pulled out of the limit hole, and the high-pressure spring freely expands and contracts along the limit rod, pushing the push rod to move outward and flipping the unfolding panel outward and unfolding; the high-pressure spring is installed on the push rod, and is limited to the area below the limit hole by the limit pin, so that it is in a compressed and force-accumulating state; the limit pin is initially installed in the limit hole on the limit rod, and the limit pin is connected to the working anchor chain by a pull rope; the pull rope is initially not subjected to tension. When the working anchor chain is pulled, the pulling point moves to the middle area of ​​the anchor body. During this process, the pull rope is gradually tightened by force, and finally the limit pin is pulled out of the limit hole, thereby allowing the high-pressure spring to freely expand and contract along the limit rod;

[0046] like Figure 4 As shown, the side deployment design includes: when the pulling point of the working anchor chain 2 moves to the middle point of the area, the deployment panel 3 is pushed outward through the tension transmission structure 5 inside the anchor body, and at the same time, the soil around the anchor body is squeezed into the hollow area in the middle of the anchor body and the soil pocket frame 4 of the deployment panel 3 under the surrounding pressure, and as the surrounding soil continues to enter the soil pocket frame of the panel in the hollow area of ​​the anchor body, the deployment panel is subjected to a greater soil weight load and the tension load of the working anchor chain, and the soil outside the deployment panel partially enters the hollow area and the soil pocket frame in the middle of the anchor body, thereby being unloaded, which is more conducive to further continuous deployment of the deployment panel.

[0047] The above is only a preferred implementation of the technology of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A device for a side-deployed weighted torpedo anchor, characterized in that: It comprises an anchor body (1), a working anchor chain (2), an unfolding panel (3), a pocket frame (4), a tension transmission structure (5), a lifting chain (6), a sliding sleeve (7), a temporary buckle (8), a wall groove (9), a hinge (10), and a limit block (11); The middle area of ​​the anchor body (1) of the torpedo anchor adopts a side expansion design. After expansion, the hollow area in the middle of the anchor body allows the surrounding soil to squeeze into the hollow area in the middle of the anchor body under the surrounding pressure; The side deployment design includes: when the pulling point of the working anchor chain (2) moves to the middle point of the area, the deployment panel (3) is pushed outward through the tension transmission structure (5) inside the anchor body, and at the same time, the soil around the anchor body is squeezed into the hollow area in the middle of the anchor body and the soil pocket frame (4) of the deployment panel (3) under the surrounding pressure, and as the surrounding soil continues to enter the soil pocket frame of the deployment panel in the hollow area of ​​the anchor body, the deployment panel bears a greater soil weight load and the tension load of the working anchor chain, and the soil outside the deployment panel partially enters the hollow area in the middle of the anchor body and the soil pocket frame, thereby being unloaded, which is more conducive to further continuous deployment of the deployment panel; The tension transmission structure (5) is composed of a high-pressure spring (5-1), a push rod (5-2), a limit rod (5-3), a limit pin (5-4), a limit hole (5-5), a pull rope (5-6), and a push head (5-7). When the pulling point of the working anchor chain (2) moves to the middle point of the area, the limit pin is pulled out of the limit hole, and the high-pressure spring freely expands and contracts along the limit rod, pushing the push rod to move outward and flipping the unfolding panel outward and unfolding it; the high-pressure spring is installed on the push rod, and is limited to the area below the limit hole by the limit pin, so that it is in a compressed and force-accumulating state; the limit pin is initially installed in the limit hole on the limit rod, and the limit pin is connected to the working anchor chain by the pull rope; the pull rope is initially not subjected to tension. When the working anchor chain is pulled, the pulling point moves to the middle area of ​​the anchor body. During this process, the pull rope is gradually tightened and finally pulls the limit pin out of the limit hole, thereby allowing the high-pressure spring to freely expand and contract along the limit rod; The unfolding panel is a part of the middle area of ​​the pile body, divided into two pieces, and connected to the non-expanding area of ​​the anchor body through 2 to 3 hinges (10) distributed longitudinally; the area of ​​the unfolding panel is 1 / 3 to 1 / 2 of the surface area of ​​the cylindrical anchor body at the corresponding height; in the initial penetration stage, the unfolding panel is not unfolded, so that the torpedo anchor can penetrate into the formation in the shape of a cylinder; in the pulling and unfolding stage, the limit pin is pulled out of the limit hole through the working anchor chain, and the high-pressure spring pushes the push rod to unfold it; at the same time, under the pulling force of the working anchor chain, it continues to unfold to a larger angle until the push head is pulled to the highest point of the limit rod and is prevented from continuing to slide by its end; the maximum unfolding angle of the unfolding panel is controlled by the length of the limit rod, and the push head is Under the action of the tension of the working anchor chain, it slides until it reaches the highest point of the limit rod and is stopped by the end of the limit rod; the unfolding panel is provided with a soil pocket frame, so that after it is unfolded, the soil entering the soil pocket frame is provided with constraints, so that the soil around the anchor body can enter the hollow area in the middle of the torpedo anchor and the soil pocket frame of the unfolding panel, and the soil is prevented from freely flowing out from the edge of the unfolding panel, thereby increasing the contribution of soil weight to the pull-out bearing capacity of the torpedo anchor; after the unfolding panel is unfolded laterally, the effective area of ​​the torpedo anchor is increased; before the torpedo anchor is released, the torpedo anchor is rotated to rotate the unfolding panel to face the tension direction of the anchor chain in the service stage, so that the normal direction of the working surface of the unfolded panel after unfolding is consistent with the tension direction of the working anchor chain, so as to maximize the contribution of the unfolding panel to improving the bearing capacity of the torpedo anchor; The working anchor chain is initially embedded in the wall groove (9) at the rear end of the anchor body of the torpedo anchor, and is fixed to the midpoint of the tail end of the torpedo anchor by a temporary buckle (8), so as to ensure that the torpedo anchor is in a vertical state during the hoisting and dropping process of the torpedo anchor; the temporary buckle is pulled out from the tail end of the torpedo anchor by tilting the working anchor chain; the working anchor chain is gradually pulled upward to be separated from the midpoint of the tail end of the torpedo anchor and the wall groove at the rear end of the anchor body, so that the working anchor chain is in a re-tensioned state; One end of the chain is fixed near the midpoint of the torpedo anchor tail end, and the other end is slidably connected to the working anchor chain through a sliding sleeve. During the hoisting and dropping process, the chain is initially in a relaxed state without stress. After the working anchor chain is pulled away from the midpoint of the torpedo anchor tail end and the wall groove at the rear end of the anchor body, the chain is in a tensioned state, and the sliding sleeve at its end slides along the working anchor chain until it encounters a limit block (8) and stops sliding, so that the torpedo anchor is in a service working state with tension at two points.

2. A method for operating a side-expanded weighted torpedo anchor, characterized in that: The device for connecting a side-deployed weighted torpedo anchor according to claim 1 is used, and the specific steps are as follows: ①, at the designated target location, hoist the working anchor chain (2), rotate the torpedo anchor so that the deployment panel is rotated to face the tension direction of the working anchor chain in the service stage, and then drop the torpedo anchor vertically, and finally sink the torpedo anchor to the designated location; ②, gradually pull the working anchor chain upwards to separate it from the rear end of the anchor body, move the tension point to the middle of the anchor body, pull the limit pin out of the limit hole, thereby allowing the high-pressure spring to freely expand and contract along the limit rod, and push the push rod to expand the deployment panel to a certain angle; ③, with the continuous pulling of the working anchor chain and the weight of the soil entering the hollow area of ​​the anchor body and the soil frame of the unfolding panel, the unfolding panel continues to unfold until the movement of the push head is constrained by the end of the limit rod and stops sliding. The unfolding panel is unfolded to the maximum angle. During this process, the lifting chain at the rear end of the anchor body is gradually tightened, and the sliding sleeve (7) at its end slides along the working anchor chain until it encounters the limit block (11) and stops sliding; ④ At this time, the anchor body forms a two-point tension service working state under the simultaneous action of the lifting chain and the working anchor chain, which greatly improves the stability of the anchor body posture and the rationality of the force direction, and changes the traditional torpedo anchor tail end tension working state. The two-point tension service working state improves the torpedo anchor's pull-out bearing capacity and pull-out stability.

3. A method for operating a side-deployed weighted torpedo anchor according to claim 2, characterized in that: The expanded panel after side expansion increases the pull-out bearing area of ​​the torpedo anchor, and the normal direction of its working surface is consistent with the tension direction of the working anchor chain, so as to maximize the contribution of the expanded panel to improving the pull-out bearing capacity of the torpedo anchor. The expanded panel is provided with a soil pocket frame to incorporate the soil around the anchor body and the hollow area in the middle of the anchor body, thereby increasing the deadweight of the anchor body and further improving the pull-out bearing capacity of the torpedo anchor. After the torpedo anchor is deployed laterally, the anchor body forms a two-point tension service working state under the simultaneous action of the lifting chain and the working anchor chain, which greatly improves the stability of the anchor body posture and the rationality of the force direction, and changes the traditional torpedo anchor's working state of tension only at the tail end. The two-point tension service working state improves the torpedo anchor's pull-out bearing capacity and pull-out stability.

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