Pipe jacking machine auxiliary device and auxiliary jacking method

Abstract

The invention provides a pipe jacking machine auxiliary device and an auxiliary jacking method. The auxiliary device of the tube push bench is arranged on the tube push bench and comprises a plurality of guide sleeves and at least one auxiliary mechanism, a plurality of penetrating holes are formed in a baffle of the pipe jacking machine. The guide sleeves are arranged in the pipe jacking machine and connected with the penetrating holes in a one-to-one correspondence mode. And each auxiliary mechanism can selectively penetrate through any guide sleeve and the corresponding penetrating hole and then is arranged in a soil layer, and each auxiliary mechanism is used for assisting the pipe jacking machine in jacking. According to the pipe jacking machine, the multiple penetrating holes are formed in the baffle of the pipe jacking machine, the guide sleeves are arranged in the pipe jacking machine and correspond to the penetrating holes in a one-to-one mode, each auxiliary mechanism selects any guide sleeve to correspond to the guide sleeve, and each auxiliary mechanism penetrates through the selected guide sleeve and the corresponding penetrating hole and then is arranged in the soil layer. When a soil layer in front of the pipe jacking machine encounters different conditions, the auxiliary mechanisms can assist the pipe jacking machine in jacking, stable work of the pipe jacking machine is guaranteed, and the pipe jacking construction efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of pipe jacking construction, and in particular to a pipe jacking machine auxiliary device and an auxiliary jacking method. Background Art

[0002] In underground tunnel projects where there is no working space on the ground, pipe jacking is usually used for construction. However, underground tunnels are buried deep, and underground obstacles are difficult to detect accurately, which affects the efficiency of pipe jacking construction. In addition, during the pipe jacking process, when the front of the pipe jacking machine suddenly encounters local hard rock, it increases the difficulty of the pipe jacking cutter head to cut, reducing the construction efficiency. Or, when the geology in front of the pipe jacking machine is relatively weak, the jacking process will disturb the surrounding strata, which may cause dangerous accidents, thereby affecting the efficiency of pipe jacking. Summary of the invention

[0003] In view of this, the present invention proposes a pipe jacking machine auxiliary device, aiming to solve the problem in the prior art that the geological conditions in front of the pipe jacking machine easily affect the efficiency of pipe jacking during pipe jacking construction. The present invention also proposes an auxiliary jacking method using the above-mentioned pipe jacking machine auxiliary device.

[0004] In one aspect, the present invention proposes a pipe jacking machine auxiliary device for being arranged on the pipe jacking machine, the device comprising: a plurality of guide sleeves and at least one auxiliary mechanism; wherein a plurality of penetration holes are opened on the baffle of the pipe jacking machine; each guide sleeve is placed inside the pipe jacking machine and is connected with each penetration hole in a one-to-one correspondence; each auxiliary mechanism can be selectively penetrated through any guide sleeve and the corresponding penetration hole and then placed in the soil layer, and each auxiliary mechanism is used to assist the pipe jacking machine in jacking.

[0005] Furthermore, in the above-mentioned pipe jacking machine auxiliary device, each auxiliary mechanism includes: an auxiliary part, a switch part and a sealing part; wherein, the first end of the auxiliary part is placed inside the pipe jacking machine, the auxiliary part is movably inserted into the corresponding guide sleeve and the insertion hole, and the second end of the auxiliary part is placed in the soil layer; the switch part is arranged in the guide sleeve to control the on and off of the guide sleeve, so that the auxiliary part can be inserted into the guide sleeve when opened, and the second end of the auxiliary part is placed between the switch part and the end of the guide sleeve away from the baffle when closed; the sealing part is arranged between the end of the guide sleeve away from the baffle and the auxiliary part to seal the gap between the guide sleeve and the auxiliary part.

[0006] Furthermore, in the above-mentioned pipe jacking machine auxiliary device, the auxiliary part is a core pipe or a drill rod or a grouting pipe.

[0007] Furthermore, in the above-mentioned pipe jacking machine auxiliary device, the switch component is a valve.

[0008] Furthermore, in the above-mentioned pipe jacking machine auxiliary device, the sealing member is a sealing ring.

[0009] In the present invention, a plurality of penetration holes are opened on the baffle plate of the jacking pipe, each guide sleeve is placed in the jacking machine and corresponds to each penetration hole one by one, each auxiliary mechanism selects any one of the guide sleeves to correspond, and each auxiliary mechanism is penetrated through the selected guide sleeve and the corresponding penetration hole and then placed in the soil layer. In this way, when the soil layer in front of the jacking machine encounters different conditions, each auxiliary mechanism can assist the jacking machine in jacking, thereby ensuring the stable operation of the jacking machine, improving the efficiency of the jacking construction, and solving the problem in the prior art that the geological conditions in front of the jacking machine during the jacking construction easily affect the jacking efficiency of the jacking.

[0010] On the other hand, the present invention also proposes a method for auxiliary jacking using any of the above-mentioned pipe jacking machine auxiliary devices, the method comprising the following steps: a jacking situation determination step, determining the jacking situation of the pipe jacking machine; a position determination step, determining the number and position of the auxiliary mechanism according to the jacking situation of the pipe jacking machine; an auxiliary jacking step, according to the position of the auxiliary mechanism, each auxiliary mechanism is inserted into the corresponding guide sleeve and the insertion hole and then placed in the soil layer, and each auxiliary mechanism assists the pipe jacking machine in jacking.

[0011] Furthermore, in the above-mentioned auxiliary jacking method, each auxiliary mechanism includes: an auxiliary part, a switch part and a sealing part; wherein, the first end of the auxiliary part is placed inside the jacking machine, the auxiliary part is movably inserted into the corresponding guide sleeve and the insertion hole, and the second end of the auxiliary part is placed in the soil layer; the switch part is arranged in the guide sleeve to control the on and off of the guide sleeve; the sealing part is arranged between the end of the guide sleeve away from the baffle and the auxiliary part to seal the gap between the guide sleeve and the auxiliary part.

[0012] Furthermore, in the above-mentioned auxiliary jacking method, when the jacking situation of the pipe jacking machine is that the geology cannot be surveyed at the jacking location of the pipe jacking machine, each auxiliary component is a coring tube; in the position determination step, the number of coring tubes is the same as the number of guide casings and corresponds one to one; the auxiliary jacking step further includes: inserting the coring tube from the end of the guide casing away from the baffle, opening the switch piece, driving the coring tube to penetrate the guide casing and the hole and then drill into the soil layer to a preset depth, and taking soil layer samples; after sampling, withdrawing the coring tube to between the switch piece and the end of the guide casing away from the baffle, closing the switch piece; pulling the coring tube out of the guide casing, taking out the soil layer sample, and analyzing the soil layer sample.

[0013] Furthermore, in the above-mentioned auxiliary jacking method, when the jacking situation of the pipe jacking machine is that the pipe jacking machine encounters rocks at the jacking point, each auxiliary component is a drill rod; in the position determination step, the number and position of the drill rods correspond to the position of the rocks; the auxiliary jacking step further includes: inserting the drill rod from the end of the guide casing away from the baffle, opening the switch part, driving the drill rod to penetrate the guide casing and the hole, and then drilling through the rock; after drilling through, withdrawing the drill rod to between the switch part and the end of the guide casing away from the baffle, closing the switch part; pulling the drill rod out of the guide casing.

[0014] Furthermore, in the above-mentioned auxiliary jacking method, when the jacking situation of the pipe jacking machine is that the geology at the jacking location of the pipe jacking machine is weak, each auxiliary component is a grouting pipe; in the position determination step, the number and position of the grouting pipes correspond to the position of the geologically weak location; the auxiliary jacking step further includes: inserting the grouting pipe from the end of the guide casing away from the baffle, opening the switch piece, driving the drill rod to penetrate the guide casing and the hole and place it at the geologically weak location, and grouting the geologically weak location; after grouting, withdrawing the grouting pipe to between the switch piece and the end of the guide casing away from the baffle, closing the switch piece; pulling the grouting pipe out of the guide casing.

[0015] In the present invention, the number and position of the auxiliary mechanisms are determined according to the jacking situation of the pipe jacking machine. According to the position of the auxiliary mechanisms, each auxiliary mechanism is inserted into the corresponding guide sleeve and the insertion hole and then placed in the soil layer. In this way, when the soil layer in front of the pipe jacking machine encounters different situations, each auxiliary mechanism can assist the pipe jacking machine in jacking, thereby ensuring the stable operation of the pipe jacking machine and improving the efficiency of the pipe jacking construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present invention. Moreover, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0017] Figure 1 A schematic diagram of the structure of a pipe jacking machine auxiliary device provided in an embodiment of the present invention;

[0018] Figure 2 A schematic structural diagram of a baffle in the pipe jacking machine auxiliary device provided in an embodiment of the present invention;

[0019] Figure 3 A schematic structural diagram of an auxiliary mechanism in the pipe jacking machine auxiliary device provided by an embodiment of the present invention;

[0020] Figure 4 A flow chart of an auxiliary jacking method provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0021] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present disclosure and to be able to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that, in the absence of conflict, the embodiments of the present invention and the features described in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0022] Device Example:

[0023] See also Figures 1 to 3 , the figure shows the preferred structure of the auxiliary device of the pipe jacking machine in this embodiment. As shown in the figure, the auxiliary device of the pipe jacking machine is used to be arranged on the pipe jacking machine, and the auxiliary device of the pipe jacking machine includes: a plurality of guide sleeves 1 and at least one auxiliary mechanism 2. Among them, the pipe jacking machine 3 is provided with a baffle 4, and a plurality of cutter discs 5 are arranged at the front of the baffle 4. A plurality of through holes 41 are opened on the baffle 4 of the pipe jacking machine 3, and the position of each through hole 41 avoids the position of each cutter disc 5. Preferably, each through hole 41 is evenly distributed on the baffle 4. The aperture of each through hole 41 can be determined according to actual conditions, and this embodiment does not impose any restrictions on this. In this embodiment, the aperture of each through hole 41 is 80 to 120 mm.

[0024] It should be noted that the structures of the baffle 4 and the cutter disc 5 in the pipe jacking machine 3 can refer to the prior art, and will not be described in detail in this embodiment.

[0025] Each guide sleeve 1 is placed inside the pipe jacking machine 3, and the number of the guide sleeves 1 is the same as the number of the through holes 41. Each guide sleeve 1 corresponds to each through hole 41 one by one, and each guide sleeve 1 is connected to the corresponding through hole 41. Specifically, the interior of each guide sleeve 1 is hollow and both ends are open. The first end ( Figure 2 The left end shown in the figure is connected to the side of the baffle plate 4 facing the inside of the pipe jacking machine 3 and is placed at the corresponding penetration hole 41, that is, each guide sleeve 1 is connected to the corresponding penetration hole 41, and the second end ( Figure 2 The right end shown in the figure extends into the bin of the pipe jacking machine 3. Preferably, the first end of each guide sleeve 1 is welded to the corresponding through hole 41. Each guide sleeve 1 can be made of a stainless steel pipe, and each guide sleeve 1 has a preset length, which can be determined according to actual conditions, and this embodiment does not impose any restrictions on this. In this embodiment, the length of each guide sleeve 1 is 200 to 500 mm.

[0026] Each auxiliary mechanism 2 can be selectively inserted into any guide sleeve 1 and the corresponding insertion hole 41 and then placed in the soil layer. Specifically, the number of guide sleeves 1 is greater than or equal to the number of auxiliary mechanisms 2. Each auxiliary mechanism 2 can select a corresponding guide sleeve 1 according to actual needs. Each auxiliary mechanism 2 is sequentially inserted into the selected guide sleeve 1 and the insertion hole 41 corresponding to the guide sleeve 1. Then, part of each auxiliary mechanism 2 is placed in the soil layer. Each auxiliary mechanism 2 is used to assist the pipe jacking machine 3 in jacking.

[0027] It can be seen that in the present embodiment, a plurality of penetration holes 41 are provided on the baffle plate 4 of the jacking pipe, each guide sleeve 1 is placed in the jacking machine 3 and corresponds to each penetration hole 41 one by one, each auxiliary mechanism 2 selects any one guide sleeve 1 to correspond to, and each auxiliary mechanism 2 is penetrated through the selected guide sleeve 1 and the corresponding penetration hole 41 and then placed in the soil layer. In this way, when the soil layer in front of the jacking machine 3 encounters different conditions, each auxiliary mechanism 2 can assist the jacking machine 3 in jacking, thereby ensuring the stable operation of the jacking machine 3, improving the efficiency of the jacking construction, and solving the problem in the prior art that the geological conditions in front of the jacking machine during the jacking construction easily affect the jacking efficiency of the jacking.

[0028] See also Figures 1 to 3 Each auxiliary mechanism 2 includes: an auxiliary part 21, a switch part 22 and a blocking part 23. The first end of the auxiliary part 21 is placed inside the pipe jacking machine 3, the auxiliary part 21 is movably inserted into the selected guide sleeve 1 and the corresponding penetration hole 41, and the second end of the auxiliary part 21 is placed in the soil layer. The outer diameter of the auxiliary part 21 is smaller than the aperture of the penetration hole 41. Preferably, the aperture of the penetration hole 41 is larger than the outer diameter of the auxiliary part 21 by 5 to 10 mm.

[0029] Preferably, the auxiliary component 21 is a core pipe or a drill rod or a grouting pipe.

[0030] The switch member 22 is arranged in the guide sleeve 1, and the switch member 22 is used to control the on and off of the guide sleeve 1, that is, to control the inside of the guide sleeve 1 to be unobstructed or to block the inside of the guide sleeve 1, thereby forming the first guide sleeve gate valve switch. The switch member 22 can be arranged in the middle position of the guide sleeve 1, and of course, it can also be arranged in other positions of the guide sleeve 1, and this embodiment does not impose any restrictions on this. Preferably, the switch member 22 is a valve. In this embodiment, the switch member 22 is a manually adjustable valve.

[0031] When the switch 22 is opened, the interior of the guide sleeve 1 is unobstructed, and the auxiliary member 21 is movably inserted into the guide sleeve 1 and the corresponding insertion hole 41, and its second end is placed in the soil layer, so that the auxiliary member 21 can assist the jacking machine 3 in jacking. When the switch 22 is closed, the switch 22 blocks the interior of the guide sleeve 1, and the second end of the auxiliary member 21 is placed between the switch 22 and the end of the guide sleeve 1 away from the baffle 4, that is, the second end of the auxiliary member 21 is placed between the switch 22 and the second end of the guide sleeve 1.

[0032] The plugging member 23 is arranged between the end of the guide sleeve 1 away from the baffle 4 and the auxiliary member 21, that is, the plugging member 23 is arranged inside the guide sleeve 1, and the plugging member 23 is placed between the inner wall of the second end of the guide sleeve 1 and the outer wall of the auxiliary member 21, and the plugging member 23 is used to plug the gap between the guide sleeve 1 and the auxiliary member 21. Preferably, the plugging member 23 is a sealing ring. Specifically, the outer wall of the sealing ring is connected to the inner wall of the second end of the guide sleeve 1, the inner wall of the sealing ring is in contact with the outer wall of the auxiliary member 21, and the inner diameter of the sealing ring matches the outer diameter of the auxiliary member 21, then the inner wall of the sealing ring is tightly attached to the auxiliary member 21, so that the port of the second end of the guide sleeve 1 + the sealing ring + the auxiliary member 21 form a sealed whole, forming a second active guide sleeve gate valve switch.

[0033] When the geological conditions in front of the pipe jacking machine 3 cannot be surveyed, the number of auxiliary parts 21 is the same as the number of guide sleeves 1, and each auxiliary part 21 corresponds to each guide sleeve 1 one by one, and each auxiliary part 21 is a core tube. The sampling process of each core tube is the same, and the sampling process of a core tube is introduced as an example below: the end of the core tube placed in the pipe jacking machine is connected to the power system, and the core tube is inserted from the inside of the pipe jacking machine 3 into the second end of the guide sleeve 1, and the switch 22 is turned on. After the power system drives the core tube to movably penetrate the corresponding guide sleeve 1 and the penetration hole 41, the core tube drills into the soil layer to a certain depth, thereby taking soil layer samples. After sampling, the core tube is withdrawn to between the switch member 22 and the second end of the guide sleeve 1, and then the switch member 22 is closed, the core tube is pulled out of the guide sleeve 1, and passes through the plugging member 23, and the soil layer sample is taken out from the core tube and analyzed, so as to provide the jacking force parameters for the subsequent jacking of the pipe jacking machine 3 and provide the parameter basis for the mud preparation before the pipe jacking machine 3, so as to ensure the safe and smooth progress of the pipe jacking.

[0034] When a large hard rock 6 is encountered in front of the pipe jacking machine 3, and the rock 6 is too hard and cannot be cut by the cutter head 5, the number of auxiliary parts 21 matches the specification of the rock 6, and the position of the auxiliary parts 21 corresponds to the position of the rock 6. According to the position of the rock 6, multiple guide sleeves 1 at corresponding positions are selected, and an auxiliary part 21 is set at each selected guide sleeve 1. Each auxiliary part 21 is a drill rod. The process of drilling through the large rock 6 by each drill rod is the same. The following is an example of the process of drilling through the large rock 6 by a drill rod: the end of the drill rod placed in the pipe jacking machine is connected to the power system, the drill rod is inserted into the second end of the guide sleeve 1 from the inside of the pipe jacking machine 3, the switch 22 is turned on, and the power system drives the drill rod to movably penetrate the corresponding guide sleeve 1 and the hole 41 corresponding to the large hard rock 6, and the power system drives the drill rod to drill through the large hard rock 6, and drill the large rock 6 into a honeycomb rock block with multiple holes. After drilling, the drill rod is withdrawn to between the switch member 22 and the second end of the guide sleeve 1, and then the switch member 22 is closed, and the drill rod is pulled out of the guide sleeve 1 and passed through the plugging member 23 to take out the drill rod. In this way, multiple drill rods can drill the large rock 6 into a honeycomb rock block with multiple holes, which improves the success rate of rock breaking by the jacking cutter head 5, facilitates the subsequent jacking of the jacking pipe, and ensures the safety and smooth progress of the jacking pipe.

[0035] When the geology in front of the pipe jacking machine 3 is weak, the number of auxiliary parts 21 matches the specifications of the weak geological part, and the position of the auxiliary parts 21 corresponds to the position of the weak geological part. According to the position of the weak geological part, multiple guide sleeves 1 at the corresponding position are selected, and an auxiliary part 21 is set at each selected guide sleeve 1. Each auxiliary part 21 is a grouting pipe. The process of reinforcing the weak geological part with each grouting pipe is the same. The following is an introduction to the process of reinforcing the weak geological part with a grouting pipe as an example: the grouting pipe is inserted into the second end of the guide sleeve 1 from the inside of the pipe jacking machine 3, the switch 22 is turned on, and the grouting pipe is driven to movably penetrate the corresponding guide sleeve 1 and the penetration hole 41, and then extends into the weak geological part. The grouting system is connected to the end of the grouting pipe placed in the pipe jacking machine. The grouting system is turned on to reinforce the geologically weak parts. After the grouting is completed, the grouting pipe is withdrawn to between the switch 22 and the second end of the guide sleeve 1, and then the switch 22 is closed, the grouting pipe is pulled out of the guide sleeve 1, and passed through the blocking piece 23 to take out the grouting pipe. In this way, multiple grouting pipes can reinforce the geologically weak parts in front of the pipe jacking machine 3, improve the strength of the soil layer to be pushed, ensure the safety, stability and smoothness of the jacking, and reduce the interference of the jacking pipe on the surrounding strata.

[0036] It can be seen that in this embodiment, the structure of each auxiliary mechanism 2 is simple and easy to implement, and the auxiliary mechanism 2 can effectively assist the jacking of the pipe jacking machine 3, thereby improving the jacking efficiency of the pipe jacking machine 3. When the geological conditions in front of the pipe jacking machine 3 cannot be surveyed, a core pipe is extended from the chamber of the pipe jacking machine 3 through the guide sleeve 1 and the corresponding penetration hole 41 to the front of the cutter head 5. The core pipe is placed in the soil layer to collect soil layer samples, which can detect the specific geological conditions in front of the pipe jacking machine 3 in advance, and provide a basis for the control of various parameters and mud preparation for the jacking of the pipe. When a large piece of hard rock 6 is encountered in front of the pipe jacking machine 3, a drill rod is extended from the chamber of the pipe jacking machine 3 through the guide sleeve 1 and the corresponding penetration hole 41 to the front of the cutter head 5, and the large piece of rock 6 is drilled through by the drill rod, so that the large piece of hard rock in front of the pipe jacking can be broken into small gravel, which is convenient for the subsequent smooth drilling of the pipe jacking. When the geology in front of the pipe jacking machine 3 is weak, a grouting pipe is extended from the chamber of the pipe jacking machine 3 through the guide sleeve 1 and the corresponding penetration hole 41 to the front of the cutter head 5, and grouting is injected into the weak geological position through the grouting pipe, which can reinforce the weak soil layer in front of the pipe jacking in advance, thereby reducing the disturbance of the surrounding strata by the subsequent pipe jacking and ensuring the safe advancement of the pipe jacking.

[0037] In summary, in this embodiment, a plurality of penetration holes 41 are opened on the baffle plate 4 of the jacking pipe, each guide sleeve 1 is placed in the jacking machine 3 and corresponds to each penetration hole 41 one by one, each auxiliary mechanism 2 selects any one of the guide sleeves 1 to correspond, and each auxiliary mechanism 2 is penetrated through the selected guide sleeve 1 and the corresponding penetration hole 41 and then placed in the soil layer. In this way, when the soil layer in front of the jacking machine 3 encounters different situations, each auxiliary mechanism 2 can assist the jacking machine 3 in jacking, thereby ensuring the stable operation of the jacking machine 3 and improving the efficiency of the jacking construction.

[0038] Method Example:

[0039] This embodiment also proposes a method for assisting jacking using the above-mentioned pipe jacking machine auxiliary device, see Figure 4 The auxiliary jacking method comprises the following steps:

[0040] The jacking condition determination step S1 determines the jacking condition of the pipe jacking machine.

[0041] Specifically, the jacking conditions of the pipe jacking machine may include: the geological conditions at the jacking location where the pipe jacking machine is advancing cannot be surveyed, rocks are encountered at the jacking location where the pipe jacking machine is advancing, and the geology at the jacking location where the pipe jacking machine is advancing is weak.

[0042] Position determination step S2, determining the number and position of the auxiliary mechanism according to the jacking situation of the pipe jacking machine.

[0043] In the auxiliary jacking step S3, according to the position of the auxiliary mechanism, each auxiliary mechanism is inserted into the corresponding guide sleeve and the insertion hole and then placed in the soil layer, and each auxiliary mechanism assists the pipe jacking machine in jacking.

[0044] Specifically, see Figures 1 to 3After each auxiliary mechanism 2 is movably penetrated with the corresponding guide sleeve 1 and the penetration hole 41, each auxiliary mechanism 2 is placed in the soil layer, and each auxiliary mechanism 2 assists the pipe jacking machine 3 in jacking.

[0045] It should be noted that the specific structure and specific implementation process of the pipe jacking machine auxiliary device can be found in the above description, and this embodiment will not be repeated here.

[0046] It can be seen that in this embodiment, the number and position of the auxiliary mechanisms are determined according to the jacking situation of the pipe jacking machine. According to the position of the auxiliary mechanisms, each auxiliary mechanism is inserted through the corresponding guide sleeve and the insertion hole and then placed in the soil layer. In this way, when the soil layer in front of the pipe jacking machine encounters different conditions, each auxiliary mechanism can assist the pipe jacking machine in jacking, thereby ensuring the stable operation of the pipe jacking machine and improving the efficiency of the pipe jacking construction.

[0047] See also Figures 1 to 3 Each auxiliary mechanism 2 includes: an auxiliary component 21, a switch component 22 and a blocking component 23. The first end of the auxiliary component 21 is placed inside the pipe jacking machine 3, the auxiliary component 21 is movably inserted into the corresponding guide sleeve 1 and the insertion hole 41, and the second end of the auxiliary component 21 is placed in the soil layer.

[0048] The switch member 22 is arranged in the guide sleeve 1, and the switch member 22 is used to control the on and off of the guide sleeve 1, that is, to control the inside of the guide sleeve 1 to be unobstructed or to block the inside of the guide sleeve 1, thereby forming the first guide sleeve gate valve switch. When the switch member 22 is opened, the inside of the guide sleeve 1 is unobstructed, and the auxiliary member 21 is movably penetrated through the guide sleeve 1 and the corresponding penetration hole 41, and its second end is placed in the soil layer, so that the auxiliary member 21 can assist the jacking machine 3 in jacking. When the switch member 22 is closed, the switch member 22 blocks the inside of the guide sleeve 1, and the second end of the auxiliary member 21 is placed between the switch member 22 and the end of the guide sleeve 1 away from the baffle 4, that is, the second end of the auxiliary member 21 is placed between the switch member 22 and the second end of the guide sleeve 1.

[0049] The blocking member 23 is arranged between the end of the guide sleeve 1 away from the baffle 4 and the auxiliary member 21, that is, the blocking member 23 is arranged inside the guide sleeve 1, and the blocking member 23 is placed between the inner wall of the second end of the guide sleeve 1 and the outer wall of the auxiliary member 21. The blocking member 23 is used to block the gap between the guide sleeve 1 and the auxiliary member 21.

[0050] When the jacking situation of the pipe jacking machine is that the geology cannot be surveyed at the jacking location of the pipe jacking machine, that is, when the jacking line is buried too deep, there is no geological drilling survey location on the ground, and the geological survey within the jacking line range is unclear, each auxiliary component is a core pipe.

[0051] In the position determination step S2, the number of core tubes is the same as the number of guide sleeves, and each auxiliary component corresponds to each guide sleeve one by one.

[0052] The auxiliary jacking step S3 further includes:

[0053] Sub-step S31, inserting a core pipe from the end of the guide casing away from the baffle, opening the switch, driving the core pipe to penetrate the guide casing and the hole and then drill into the soil layer to a preset depth to take soil layer samples.

[0054] Specifically, see Figures 1 to 3 After the jacking pipe advances a fixed distance, the jacking machine 3 is paused and the cutterhead 5 stops rotating. The core pipe is inserted from the second end of the guide sleeve 1, and the core pipe can be moved through the plugging member 23 to the position of the switch member 22, and the plugging member 23 is fixed to form a second movable guide sleeve gate valve switch. The function of the plugging member 23 is to ensure that after the switch member 22 (i.e., the first guide sleeve gate valve switch) is opened, the mud in front of the jacking pipe will not flow out of the guide sleeve 1.

[0055] The switch 22 is turned on, the coring pipe is started, and the coring pipe is movably passed through the corresponding guide sleeve 1 and the perforated hole 41 in sequence, and then drilled into the soil layer 2 to 5 meters in front of the pipe jacking machine 3 to take soil layer samples. The first end of the coring pipe placed in the pipe jacking machine is connected to the power system, and the second end of the coring pipe is drilled into the soil layer to take soil layer samples. The power system drives the movement and drilling of the coring pipe.

[0056] Sub-step S32, after sampling, withdraw the core tube to between the switch member and the end of the guide sleeve away from the baffle, and close the switch member.

[0057] Specifically, see Figures 1 to 3 After sampling, the core tube is withdrawn between the first guide sleeve gate valve switch and the second active guide sleeve gate valve switch, that is, the second end of the core tube is placed between the switch member 22 and the second end of the guide sleeve 1, and the switch member 22 is closed.

[0058] Sub-step S33, pulling the core tube out of the guide casing, taking out the soil layer sample, and analyzing the soil layer sample.

[0059] Specifically, see Figures 1 to 3 , pull out the core tube from the guide casing 1, and pass the core tube through the plugging piece 23 (i.e., the second active guide casing gate valve switch), take out the soil layer sample in the core tube, and analyze the soil layer sample, so as to detect the geological conditions in front of the pipe jacking machine in advance, provide the jacking force parameters for the subsequent jacking of the pipe jacking and the parameter basis for the mud preparation in front of the pipe jacking machine, so as to ensure the safe and smooth progress of the pipe jacking.

[0060] The auxiliary jacking step S3 is specifically a process of taking soil samples with one core tube, and the process of taking soil samples with other core tubes is the same as the above steps. Soil samples are taken from each core tube, and the soil samples taken from each core tube are analyzed.

[0061] When the jacking situation of the pipe jacking machine is that the pipe jacking machine encounters rock at the jacking point, that is, when there is a large piece of hard rock in front of the pipe jacking machine during the jacking process, but this rock is too hard and the cutter head cannot cut it off, each auxiliary part is a drill rod.

[0062] In the position determination step S2, the number and position of the drill rods correspond to the position of the rock. Specifically, the number of the drill rods matches the specifications of the rock, the position of the drill rods corresponds to the position of the rock, a plurality of guide sleeves at corresponding positions are selected according to the position of the rock, and a drill rod is set at each selected guide sleeve.

[0063] The auxiliary jacking step S3 further includes:

[0064] Sub-step S31, inserting a drill rod from the end of the guide casing away from the baffle, opening the switch, driving the drill rod to penetrate the guide casing and the hole, and then drilling through the rock.

[0065] Specifically, see Figures 1 to 3 When the pipe jacking machine 3 encounters rock 6 at the jacking point, the pipe jacking machine 3 is paused, the cutter head 5 is stopped, and the core pipe is inserted from the second end of the guide sleeve 1. The core pipe can be movably passed through the blocking member 23 to the position of the switch member 22, and the blocking member 23 is fixed to form a second active guide sleeve gate valve switch.

[0066] The switch 22 is turned on, the drill rod is started, and the drill rod is movably passed through the corresponding guide sleeve 1 and the hole 41 in sequence, and then drilled into the large hard rock 6. The drill rod drills through the large hard rock 6 and drills the large rock 6 into a honeycomb rock block with multiple holes. The first end of the drill rod placed in the pipe jacking machine is connected to the power system, and the second end of the drill rod contacts the large hard rock 6 and drills through the large hard rock 6. The power system drives the movement and drilling of the drill rod.

[0067] Sub-step S32, after drilling, withdraw the drill rod to between the switch member and the end of the guide sleeve away from the baffle, and close the switch member.

[0068] Specifically, see Figures 1 to 3 After drilling through, withdraw the drill rod to between the first guide casing gate valve switch and the second active guide casing gate valve switch, that is, the second end of the drill rod is placed between the switch member 22 and the second end of the guide casing 1, and close the switch member 22.

[0069] Sub-step S33, pulling the drill rod out of the guide casing.

[0070] Specifically, the drill rod is pulled out from the guide casing 1, and passed through the blocking member 23 (ie, the second movable guide casing gate valve switch) to take out the drill rod.

[0071] The specific steps of the auxiliary jacking step S3 are a process of one drill rod drilling through the rock, and the process of the remaining drill rods drilling through the rock is the same as the above steps. Repeating the above steps can make each drill rod drill through the rock at the same time, thereby drilling large blocks of rock into honeycomb rock blocks with multiple holes, thereby improving the success rate of rock breaking by the jacking cutter head, facilitating the smooth jacking of subsequent jacking, so as to ensure the safe and smooth progress of the jacking.

[0072] When the geology at the jacking location is weak, that is, the geology at the jacking location is loose or muddy, or the geology is unevenly soft at the top and hard at the bottom of the jacking face, or the surrounding structures are close to the jacking line and are easily disturbed, each auxiliary part is a grouting pipe.

[0073] In the position determination step S2, the number and position of the grouting pipes correspond to the position of the geological weak part. Specifically, the number of the grouting pipes matches the area size of the geological weak part, and the position of the grouting pipes corresponds to the position of the geological weak part. According to the position of the geological weak part, multiple guide sleeves at corresponding positions are selected, and a grouting pipe is set at each selected guide sleeve.

[0074] The auxiliary jacking step S3 further includes:

[0075] Sub-step S31, inserting the grouting pipe from the end of the guide casing away from the baffle, opening the switch, driving the drill rod to penetrate the guide casing and the hole to be placed in the geological weak position, and grouting the geological weak position.

[0076] Specifically, see Figures 1 to 3 When the geology at the jacking location is weak, the jacking machine 3 is stopped and the cutterhead 5 is stopped. The grouting pipe is inserted from the second end of the guide sleeve 1, and the grouting pipe can be movably passed through the plugging member 23 to the position of the switch member 22, and the plugging member 23 is fixed to form a second movable guide sleeve gate valve switch.

[0077] The switch is turned on, and the grouting pipe is started. The grouting pipe is movably passed through the corresponding guide sleeve 1 and the hole 41 in sequence, and then extends into the geologically weak part. The first end of the grouting pipe placed in the pipe jacking machine is connected to the grouting system, and the second end of the grouting pipe is placed at the geologically weak part. The grouting system is started, and the grouting system performs grouting reinforcement on the geologically weak part through the grouting pipe.

[0078] Sub-step S32, after grouting, withdraw the grouting pipe to between the switch member and the end of the guide sleeve away from the baffle, and close the switch member.

[0079] Specifically, see Figures 1 to 3 After grouting, withdraw the grouting pipe to between the first guide sleeve gate valve switch and the second movable guide sleeve gate valve switch, that is, the second end of the grouting pipe is placed between the switch member 22 and the second end of the guide sleeve 1, and close the switch member 22.

[0080] Sub-step S33, pulling the grouting pipe out of the guide sleeve.

[0081] Specifically, see Figures 1 to 3 , pull out the grouting pipe from the guide sleeve 1, and pass through the blocking piece 23 (i.e. the second movable guide sleeve valve switch) to take out the grouting pipe.

[0082] The specific steps of the above-mentioned auxiliary jacking step S3 are the process of grouting one grouting pipe, and the process of grouting other grouting pipes is the same as the above steps. Repeating the above steps can make each grouting pipe grouting to the geological weak parts at the same time, thereby reinforcing the geological weak parts in front of the jacking machine, improving the strength of the soil layer to be jacked, ensuring the safety, stability and smoothness of the jacking, reducing the interference of the jacking pipe on the surrounding strata, and ensuring the safe jacking of the jacking pipe.

[0083] In summary, in this embodiment, the number and position of the auxiliary mechanisms are determined according to the jacking situation of the pipe jacking machine. According to the position of the auxiliary mechanisms, each auxiliary mechanism is inserted into the corresponding guide sleeve and the insertion hole and then placed in the soil layer. In this way, when the soil layer in front of the pipe jacking machine encounters different conditions, each auxiliary mechanism can assist the pipe jacking machine in jacking, thereby ensuring the stable operation of the pipe jacking machine and improving the efficiency of the pipe jacking construction.

[0084] It should be noted that the principles of the pipe jacking machine auxiliary device and the auxiliary jacking method in the present invention are the same, and the relevant parts can be referenced to each other.

[0085] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation on the present invention.

[0086] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0087] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A pipe jacking machine auxiliary device, used to be arranged on the pipe jacking machine, characterized in that: include: A plurality of guide sleeves (1) and at least one auxiliary mechanism (2); wherein: The baffle plate (4) of the pipe jacking machine (3) is provided with a plurality of penetration holes (41); Each of the guide sleeves (1) is placed inside the pipe jacking machine (3) and is connected to each of the penetration holes (41) in a one-to-one correspondence; Each of the auxiliary mechanisms (2) can be selectively inserted into any guide sleeve (1) and the corresponding insertion hole (41) and then placed in the soil layer. Each of the auxiliary mechanisms (2) is used to assist the pipe jacking machine (3) in jacking.

2. The pipe jacking machine auxiliary device according to claim 1, characterized in that: Each of the auxiliary mechanisms (2) comprises: an auxiliary component (21), a switch component (22) and a blocking component (23); wherein: The first end of the auxiliary component (21) is placed inside the pipe jacking machine (3), the auxiliary component (21) is movably inserted into the corresponding guide sleeve (1) and the insertion hole (41), and the second end of the auxiliary component (21) is placed in the soil layer; The switch member (22) is arranged in the guide sleeve (1) and is used to control the on and off of the guide sleeve (1), so that when it is opened, the auxiliary member (21) can be inserted into the guide sleeve (1), and when it is closed, the second end of the auxiliary member (21) is placed between the switch member (22) and the end of the guide sleeve (1) away from the baffle (4); The blocking member (23) is arranged between the end of the guide sleeve (1) away from the baffle (4) and the auxiliary member (21) to block the gap between the guide sleeve (1) and the auxiliary member (21).

3. The pipe jacking machine auxiliary device according to claim 2, characterized in that: The auxiliary component (21) is a core pipe or a drill rod or a grouting pipe.

4. The pipe jacking machine auxiliary device according to claim 2, characterized in that: The switch element (22) is a valve.

5. The pipe jacking machine auxiliary device according to claim 2, characterized in that: The blocking member (23) is a sealing ring.

6. A method for assisting jacking using the pipe jacking machine auxiliary device according to any one of claims 1 to 5, characterized in that: The steps include: The steps for determining the jacking situation are to determine the jacking situation of the pipe jacking machine; A position determination step, determining the number and position of the auxiliary mechanism according to the jacking situation of the pipe jacking machine; The auxiliary jacking step is to insert each auxiliary mechanism into the corresponding guide sleeve and the insertion hole according to the position of the auxiliary mechanism and then place it in the soil layer, and each auxiliary mechanism assists the jacking machine in jacking.

7. The auxiliary jacking method according to claim 6, characterized in that: Each of the auxiliary mechanisms comprises: an auxiliary part, a switch part and a blocking part; wherein, The first end of the auxiliary member is placed inside the pipe jacking machine, the auxiliary member is movably inserted into the corresponding guide sleeve and the insertion hole, and the second end of the auxiliary member is placed in the soil layer; The switch is arranged in the guide sleeve and is used to control the on and off of the guide sleeve; The blocking member is arranged between the end of the guide sleeve away from the baffle and the auxiliary member to block the gap between the guide sleeve and the auxiliary member.

8. The auxiliary jacking method according to claim 7, characterized in that: When the jacking situation of the pipe jacking machine is that the geology at the jacking location of the pipe jacking machine cannot be surveyed, each of the auxiliary parts is a core pipe; In the position determination step, the number of the core tubes is the same as the number of the guide sleeves and corresponds one to one; The auxiliary jacking step further comprises: Inserting a coring tube from the end of the guide sleeve away from the baffle, opening the switch, driving the coring tube to penetrate the guide sleeve and the hole, and then drilling into the soil layer to a preset depth to take soil layer samples; After sampling, the core tube is withdrawn to between the switch member and the end of the guide sleeve away from the baffle, and the switch member is closed; The core tube is pulled out from the guide casing, the soil layer sample is taken out, and the soil layer sample is analyzed.

9. The auxiliary jacking method according to claim 7, characterized in that: When the jacking situation of the pipe jacking machine is that the jacking position of the pipe jacking machine encounters rock, each of the auxiliary parts is a drill rod; In the position determination step, the number and position of the drill rods correspond to the position of the rock; The auxiliary jacking step further comprises: Inserting a drill rod from the end of the guide sleeve away from the baffle, opening the switch, driving the drill rod to penetrate the guide sleeve and the hole, and then drilling through the rock; After drilling, the drill rod is withdrawn to between the switch member and the end of the guide sleeve away from the baffle, and the switch member is closed; Pull the drill rod out of the guide sleeve.

10. The auxiliary jacking method according to claim 7, characterized in that: When the jacking condition of the pipe jacking machine is that the geology at the jacking location of the pipe jacking machine is weak, each of the auxiliary parts is a grouting pipe; In the position determination step, the number and position of the grouting pipes correspond to the position of the geological weak points; The auxiliary jacking step further comprises: Inserting a grouting pipe from the end of the guide sleeve away from the baffle, opening the switch, driving the drill rod to penetrate the guide sleeve and the hole and then be placed at the geologically weak location, and grouting the geologically weak location; After grouting, the grouting pipe is withdrawn to between the switch member and the end of the guide sleeve away from the baffle, and the switch member is closed; The grouting pipe is pulled out from the guide sleeve.

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