A method for erecting the main cable of a horizontal tunnel anchor

Abstract

The present application relates to a method for erecting the main cable of a horizontal tunnel anchor, which includes: installing a temporary anchoring system on a temporary anchoring surface, setting a temporary cable spreading point, and arranging a temporary cable spreading saddle at the temporary cable spreading point, so that the orientation of the temporary cable spreading saddle is opposite to that of the reverse cable spreading saddle, and the temporary cable spreading point and the final cable spreading point are on the same main cable alignment; in the first erection sequence with the first reference cable strand first and the general cable strands following, passing the main cable strands through the temporary cable spreading point and anchoring them on the temporary anchoring system, and threading them into the temporary cable spreading saddle, the main cable strands including the reference cable strand and the general cable strands; then, in the second erection sequence with the general cable strands first and the first reference cable strand following, threading the main cable strands into the reverse cable spreading saddle and anchoring them on the front anchoring surface of the horizontal tunnel anchor. In the present invention, the orientation of the temporary cable spreading saddle is opposite to that of the reverse cable spreading saddle, and the temporary cable spreading saddle positions the main cable strands, so that the alignment of the main cable strands before and after entering the reverse cable spreading saddle meets the design requirements.

Description

Technical Field

[0001] This application relates to the field of bridge engineering, and particularly to a method for erecting the main cable of a horizontal tunnel anchor Background Art

[0002] A single main cable is composed of dozens or hundreds of wire strands, and each wire strand is composed of dozens or hundreds of high-strength steel wires; the alignment of the main cable is ensured by the alignment of each wire strand, and the alignment of the wire strand is guaranteed by the alignment of each steel wire. When erecting the wire strands, it is necessary to ensure that the steel wires in a single wire strand are arranged correctly and do not cross each other; and it is also necessary to ensure that the position of a single wire strand in the main cable arrangement is correct and the wire strands do not cross each other

[0003] In the existing horizontal tunnel anchor structure, the following problems exist when the main cable of the tunnel anchor enters the saddle at the dispersion saddle: the saddle groove at the dispersion saddle faces downward, opposite to the direction of the main saddle. During the erection of the first reference wire strand, the first reference wire strand is at the bottom of the saddle groove at the main saddle and also at the bottom of the wire strands at the dispersion saddle. However, at this time, there is no saddle groove to support the lower part of the first reference wire strand, and the other wire strands above have not been erected, so it is impossible to accurately position it Summary of the Invention

[0004] The embodiments of this application provide a method for erecting the main cable of a horizontal tunnel anchor to solve the problem in the related art that the dispersion saddle needs to be incorporated into the first reference wire strand first and the first reference wire strand cannot be positioned

[0005] To achieve the above object, the present invention provides the following technical solution: A method for erecting the main cable of a horizontal tunnel anchor, which includes:

[0006] Install a temporary anchoring system on the temporary anchoring surface, set a temporary dispersion point, and set a temporary dispersion saddle at the temporary dispersion point so that the orientation of the temporary dispersion saddle is opposite to that of the reverse dispersion saddle, and the temporary dispersion point and the final dispersion point are on the same main cable wire strand alignment

[0007] With the first erection sequence of the first reference wire strand first and the general wire strands later, anchor the main cable wire strands on the temporary anchoring system, pass through the temporary dispersion point and incorporate them into the temporary dispersion saddle. The main cable wire strands include reference wire strands and general wire strands

[0008] Then, in the second erection sequence of the general wire strands first and the first reference wire strand later, incorporate the main cable wire strands into the reverse dispersion saddle and anchor them on the front anchor surface of the horizontal tunnel anchor

[0009] In some embodiments, set the erection number of the first reference wire strand as 1, and the erection numbers of the remaining general wire strands are 2, 3, 4......n in sequence. The first erection sequence is: 1, 2, 3, 4.....n

[0010] In some embodiments, the first reference cable strand is set as the first row, and the remaining ordinary cable strands are divided into the second row, the third row....., the nth row. Each row of ordinary cable strands includes at least one ordinary cable strand. The first erection sequence is: the first row, the second row, the third row....., the nth row.

[0011] In some embodiments, in the first erection sequence with the first reference cable strand first and the ordinary cable strands following, the main cable strands are anchored on the temporary anchoring system, passed through the temporary strand dispersing point and incorporated into the temporary strand dispersing saddle. The specific steps include:

[0012] Pull the first reference cable strand to the anchor chamber;

[0013] Temporarily anchor the anchor heads at both ends of the first reference cable strand on the temporary anchoring system;

[0014] Pass the first reference cable strand through the temporary strand dispersing point and incorporate it into the temporary strand dispersing saddle to complete the preliminary erection of the first reference cable strand;

[0015] Based on the preliminary erection steps of the first reference cable strand and the first erection sequence, incorporate the remaining ordinary cable strands into the temporary strand dispersing saddle to complete the preliminary erection of the main cable strands.

[0016] In some embodiments, after passing the first reference cable strand through the temporary strand dispersing point and incorporating it into the temporary strand dispersing saddle, and before incorporating the remaining ordinary cable strands into the temporary strand dispersing saddle based on the preliminary erection steps of the first reference cable strand and the first erection sequence, the steps further include: adjusting the sag of the first reference cable strand;

[0017] After incorporating the remaining ordinary cable strands into the temporary strand dispersing saddle based on the preliminary erection steps of the first reference cable strand and the first erection sequence, the steps further include: positioning and adjusting the ordinary cable strands according to the alignment of the first reference cable strand so that the alignment of the main cable strands meets the requirements of the as-built alignment.

[0018] In some embodiments, after temporarily anchoring the anchor heads at both ends of the first reference cable strand on the temporary anchoring system and before passing the first reference cable strand through the temporary strand dispersing point and incorporating it into the temporary strand dispersing saddle, the steps further include:

[0019] Perform lifting, lateral translation, and shaping into the saddle operations on the first reference cable strand.

[0020] In some embodiments, in the lifting, lateral translation, and shaping into the saddle operations on the first reference cable strand, the specific steps include:

[0021] Perform lifting and lateral translation on the first reference cable strand to laterally translate the first reference cable strand above the temporary strand dispersing saddle;

[0022] Perform shaping on the first reference cable strand to shape the cross-section of the first reference cable strand to fit the shape of the saddle groove of the temporary strand dispersing saddle.

[0023] In some embodiments, according to the second erection sequence with general cable strands first and the first reference cable strand last, the main cable strands are incorporated into the reverse spreader saddle and anchored on the front anchor face of the horizontal tunnel anchor. The specific steps include:

[0024] Remove the last incorporated general cable strand from the temporary anchoring system;

[0025] Lengthen the general cable strand through a cable strand connector;

[0026] Incorporate the general cable strand into the reverse spreader saddle;

[0027] Turn the general cable strand through the turning point at the final spreader point;

[0028] Anchore the general cable strand on the front anchor face of the horizontal tunnel anchor to complete the final erection of the general cable strand;

[0029] Based on the final erection steps of the general cable strand and the second erection sequence, anchor the main cable strands in the remaining temporary spreader saddles on the front anchor face of the horizontal tunnel anchor to complete the final erection of the main cable strands.

[0030] In some embodiments, according to the second erection sequence with general cable strands first and the first reference cable strand last, the main cable strands are incorporated into the reverse spreader saddle and anchored on the front anchor face of the horizontal tunnel anchor, so that the erection state of the main cable strands outside the temporary spreader point remains unchanged.

[0031] In some embodiments, the erection state includes the verticality of the main cable strands and the alignment of the main cable strands.

[0032] The beneficial effects brought by the technical solution provided in this application include:

[0033] The embodiment of this application provides a method for erecting the main cable of a horizontal tunnel anchor. When setting the temporary spreader saddle, the orientation of the temporary spreader saddle is opposite to that of the reverse spreader saddle, that is, the orientation of the temporary spreader saddle is upward, so that the relative positions of the main cable strands in the main saddle groove and the temporary spreader saddle groove are the same. Incorporate the first reference cable strand into the temporary spreader saddle in the first erection sequence with the first reference cable strand first, so that the first reference cable strand is at the bottom of the saddle groove at the temporary spreader saddle. It can not only accurately position the first reference cable strand through the temporary spreader saddle, but also position the general cable strands through the first reference cable strand. Position the main cable strands through the temporary spreader saddle, so that the alignment of the main cable strands before and after entering the reverse spreader saddle meets the design requirements. Brief Description of the Drawings

[0034] To more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the accompanying drawings required for the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0035] Figure 1 Schematic diagram of the main cable erection of the horizontal tunnel anchor provided by the embodiment of the present application;

[0036] Figure 2 Cross-sectional view of the temporary cable saddle provided by the embodiment of the present application;

[0037] Figure 3 Cross-sectional view of the reverse cable saddle provided by the embodiment of the present application;

[0038] Figure 4 Schematic diagram of the erection sequence of the main cable strands of the temporary cable saddle provided by the embodiment of the present application;

[0039] Figure 5 Schematic diagram of the erection sequence of the main cable strands of the reverse cable saddle provided by the embodiment of the present application;

[0040] Figure 6 Flowchart of the method for erecting the main cable of the horizontal tunnel anchor provided by the embodiment of the present application.

[0041] In the figure: 1. Temporary cable point; 2. Temporary cable saddle; 3. Temporary anchoring system; 4. Final cable point; 5. Reverse cable saddle; 6. Strand connector; 7. Front anchor face of the horizontal tunnel anchor; 8. Main cable strand; 9. Zinc filling block; 10. Compression device. Detailed implementation manners

[0042] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts fall within the scope of protection of the present application.

[0043] See Figures 1 to 6 , the embodiment of the present application provides a method for erecting the main cable of a horizontal tunnel anchor, which can solve the problem in the related technology that the cable saddle needs to first incorporate the first reference strand, and the first reference strand cannot be positioned.

[0044] The embodiment of the present application provides a method for erecting the main cable of a horizontal tunnel anchor, which includes:

[0045] 101: Install the temporary anchoring system 3 on the temporary anchoring surface, set the temporary cable - spreading point 1, and set the temporary cable - spreading saddle 2 at the temporary cable - spreading point 1, so that the orientation of the temporary cable - spreading saddle 2 is opposite to that of the reverse cable - spreading saddle 5, and the temporary cable - spreading point 1 and the final cable - spreading point 4 are on the same main cable alignment.

[0046] 102: With the first erection sequence that the first reference strand is first and the general strands are behind, anchor the main cable strands 8 on the temporary anchoring system 3, pass through the temporary cable - spreading point 1 and incorporate them into the temporary cable - spreading saddle 2. The main cable strands 8 include reference strands and general strands.

[0047] 103: Then, according to the second erection sequence that the general strands are first and the first reference strand is behind, incorporate the main cable strands 8 into the reverse cable - spreading saddle 5 and anchor them on the front anchoring surface 7 of the horizontal tunnel anchor.

[0048] For the existing horizontal tunnel anchor structure, there are the following problems when the main cable of the tunnel anchor enters the reverse cable - spreading saddle 5: The saddle groove of the reverse cable - spreading saddle 5 faces downward, opposite to the direction of the main saddle. The first reference strand is at the bottom of the saddle groove at the main saddle. When the main cable strands 8 are incorporated into the reverse cable - spreading saddle 5, they enter the saddle from bottom to top. During the erection process of the first reference strand, the first reference strand enters the saddle first and is also at the bottom of the strands at the reverse cable - spreading saddle 5. However, at this time, there is no saddle groove to support the lower part of the first reference strand. At the same time, during the process of entering the saddle from bottom to top, the first reference strand and some general strands will block the notch of the reverse cable - spreading saddle 5, resulting in the problem that the main cable strands 8 installed above the saddle groove cannot enter the saddle.

[0049] Therefore, to solve the above problems, when setting the temporary cable - spreading saddle 2 in this application, the orientation of the temporary cable - spreading saddle 2 is opposite to that of the reverse cable - spreading saddle 5, that is, the temporary cable - spreading saddle 2 faces upward, so that the relative positions of the main cable strands 8 in the saddle grooves of the main saddle and the temporary cable - spreading saddle 2 are the same. Incorporate the reference strands into the temporary cable - spreading saddle 2 in the first erection sequence with the first reference strand first, so that the first reference strand is at the bottom of the saddle groove at the temporary cable - spreading saddle 2. This can not only accurately position the first reference strand through the temporary cable - spreading saddle 2, but also position the general strands through the first reference strand. Position the main cable strands 8 through the temporary cable - spreading saddle 2, so that the alignment of the main cable strands 8 before and after entering the reverse cable - spreading saddle 5 meets the design requirements.

[0050] It should be noted that the main cable strands 8 are composed of dozens or hundreds of strands, and each single strand is composed of dozens or hundreds of high - strength steel wires; the alignment of the main cable strands 8 is ensured by the alignment of each strand, and the alignment of the strand is guaranteed by the alignment of each steel wire. The erection of the main cable strands 8 should not only ensure that the steel wires in each single strand are arranged correctly and do not cross each other; but also ensure that the position of each single strand in the main cable arrangement is correct and the strands do not cross each other.

[0051] In this application, in the main cable wire strands 8: there can be one or multiple reference wire strands, and there are multiple general wire strands.

[0052] 101: "Install the temporary anchorage system 3 on the temporary anchorage surface, set the temporary cable dispersion point 1, and set the temporary cable saddle 2 at the temporary cable dispersion point 1, so that the orientation of the temporary cable saddle 2 is opposite to that of the reverse cable saddle 5, and the temporary cable dispersion point 1 and the final cable dispersion point 4 are on the same main cable alignment":

[0053] Specifically, the setting of the temporary cable dispersion point 1 first needs to ensure that it is on the same main cable alignment as the final cable dispersion point 4: the temporary cable dispersion point 1 and the final cable dispersion point 4 are on the same main cable alignment, so that after the main cable wire strands 8 are reverse-rotated by the reverse cable saddle 5, the alignment of the middle span of the main cable wire strands 8 and the side span outside the temporary cable dispersion point 1 remains unchanged. Based on this standard, the distance range between the temporary anchorage system 3 and the temporary cable dispersion point 1 is set to 12m to 20m to ensure an appropriate distance between the two, so that the excavation range of the temporary anchorage surface is small, the excavation of the chamber can be reduced, the stability of the surrounding rock can be improved, and the project cost can be reduced. Setting the temporary anchorage system 3 and the temporary cable saddle 2 can also make the alignment of the middle span of the main cable and the side span outside the temporary cable dispersion point 1 of the main cable wire strands 8 meet the design requirements before entering the reverse cable saddle 5.

[0054] After determining the position of the temporary cable dispersion point 1, set the temporary cable saddle 2 at the temporary cable dispersion point 1, and then determine the position of the temporary anchorage surface according to the distance range between the temporary anchorage system 3 and the temporary cable dispersion point 1; or, after determining the position of the temporary anchorage surface, based on the distance range between the temporary anchorage system 3 and the temporary cable dispersion point 1 and the standard that the temporary cable dispersion point 1 and the final cable dispersion point 4 are on the same main cable alignment, determine the setting of the temporary cable dispersion point 1, and then set the temporary cable saddle 2 at the temporary cable dispersion point 1;

[0055] After determining the position of the temporary anchorage surface, the predetermined size of the temporary anchorage surface needs to be set, and then the temporary anchorage surface is excavated at the construction site according to the predetermined size, and the temporary anchorage system 3 is constructed on the temporary anchorage surface. The temporary anchorage system 3 bears the tension generated by the self-weight of the main cable wire strands 8 during the erection process of the main cable wire strands 8, so a rock bolt anchorage system is adopted to ensure its pull-out bearing capacity.

[0056] 102: Anchor the main cable wire strands 8 on the temporary anchorage system 3 in the first erection order with the first reference wire strand first and the general wire strands later, pass through the temporary cable dispersion point 1 and incorporate them into the temporary cable saddle 2. The main cable wire strands 8 include reference wire strands and general wire strands:

[0057] Among them, before the erection of the main cable wire strands 8, the erection order of the main cable wire strands 8 is set first:

[0058] In some possible embodiments: such as Figure 4As shown, the erection number of the first reference cable strand is set as 1, and the erection numbers of the remaining general cable strands are successively 2, 3, 4......n. The first erection sequence is: 1, 2, 3, 4.....n. When there is one reference cable strand, this reference cable strand is the first reference cable strand. At this time, the general cable strands include the other cable strands except the first reference cable strand; when there are multiple reference cable strands, the first erected reference cable strand is the first reference cable strand. At this time, the general cable strands include the reference cable strands and the other cable strands except the first reference cable strand.

[0059] In some other possible embodiments, the first reference cable strand is set as the first row, and the remaining general cable strands are divided into the second row, the third row.....the nth row. Each row of general cable strands includes at least one general cable strand. The first erection sequence is: the first row, the second row, the third row.....the nth row. When there is one reference cable strand, this reference cable strand is the first reference cable strand. At this time, the general cable strands include the other cable strands except the first reference cable strand; when there are multiple reference cable strands, the first erected reference cable strand is the first reference cable strand. At this time, the general cable strands include the reference cable strands and the other cable strands except the first reference cable strand.

[0060] In this embodiment, except for the first row, each row of general cable strands includes at least one general cable strand, and the central axes of the multiple general cable strands in each row of general cable strands are located on the same horizontal plane. If a row of general cable strands includes multiple general cable strands, there are multiple erection sequences for the general cable strands in this row. For example, the third row includes three general cable strands. For the sake of understanding, the three general cable strands are respectively named No. 1, No. 2, and No. 3. Therefore, the saddle-entry sequence of these three general cable strands from the front to the back can be No. 1, No. 2, and No. 3, or it can also be No. 2, No. 1, and No. 3, etc. In this embodiment, the saddle-entry sequence of the multiple general cable strands in each row of general cable strands is not limited and can be set according to requirements. However, when a row of general cable strands includes a reference cable strand, the reference cable strand needs to be erected first.

[0061] The above embodiments are only multiple possible implementation manners of the embodiments of the present application, and the embodiments of the present application are not limited thereto.

[0062] Preferably, in the embodiments of the present application, the following: "Anchoring the main cable strands 8 on the temporary anchoring system 3 in the first erection sequence with the first reference cable strand first and the general cable strands later, passing through the temporary cable dispersion point 1 and incorporating them into the temporary cable dispersion saddle 2" specifically includes the following steps:

[0063] 201: Traction the first reference cable strand to the anchor chamber;

[0064] 202: Temporarily anchor the two ends of the first reference cable strand on the temporary anchoring system 3;

[0065] 203: Pass the first reference cable strand through the temporary cable spreading point 1 and then incorporate it into the temporary cable spreading saddle 2 to complete the preliminary erection of the first reference cable strand.

[0066] 204: Based on the preliminary erection steps of the first reference cable strand and the first erection sequence, incorporate the remaining general cable strands into the temporary cable spreading saddle 2 to complete the preliminary erection of the main cable strands 8.

[0067] Specifically, first carry out the erection of the first reference cable strand: After towing the first reference cable strand to the anchor chamber, temporarily anchor the anchor heads at both ends of the first reference cable strand on the temporary anchoring system 3. Use the winch on the gantry of the temporary cable spreading saddle 2 and the winch on the tower top gantry to lift, horizontally move, and shape the first reference cable strand into the saddle. Then pass the first reference cable strand through the temporary cable spreading point 1. After the first reference cable strand passes through the temporary cable spreading point 1, it slopes downward. Then incorporate the first reference cable strand into the temporary cable spreading saddle 2 to complete the preliminary erection of the first reference cable strand.

[0068] Since the orientation of the temporary cable spreading saddle 2 is upward, the first reference cable strand is located at the bottom of the saddle groove of the temporary cable spreading saddle 2 at this time. Accurately position the first reference cable strand through the temporary cable spreading saddle 2. At the same time, incorporate the main cable strands 8 into the temporary cable spreading saddle 2 from bottom to top. The cable strands below the saddle groove will not interfere with the cable strands above the saddle groove entering the saddle. Then carry out the erection of the general cable strands according to the erection sequence and based on the preliminary erection steps of the first reference cable strand to complete the preliminary erection of the main cable strands 8. Zinc filling blocks 9 and pressing devices 10 are provided on the temporary cable spreading saddle 2. The inside of the saddle groove of the temporary cable spreading saddle 2 can be filled with the zinc filling blocks 9 to prevent the displacement of the main cable strands 8. Then use the pressing devices 10 to press and fix the main cable strands 8 and the zinc filling blocks 9 to further position the main cable strands 8.

[0069] Among them, in the "lifting, horizontal moving, and shaping into the saddle operation for the first reference cable strand", the specific steps include:

[0070] 301: Lift and horizontally move the first reference cable strand to move the first reference cable strand horizontally above the temporary cable spreading saddle 2.

[0071] 302: Shape the first reference cable strand to shape the cross-section of the first reference cable strand to fit the shape of the saddle groove of the temporary cable spreading saddle 2.

[0072] Specifically, the wire gripper is installed on the first reference cable strand at about 20 meters in front of and behind the main saddle and about 20 meters in front of the temporary spreader saddle 2. The hoists on the tower top gantry and the temporary spreader saddle 2 gantry are connected to the wire gripper to form a lifting system. Then, the hoist is started to lift the entire first reference cable strand off the catwalk. During the lifting process, the first reference cable strand automatically transversely moves above the main temporary spreader saddle 2. After the first reference cable strand is lifted and transversely moved, hexagonal clamps are installed on the reference cable strand at about 3 meters in front of and behind the main saddle and the temporary spreader saddle 2 respectively. The wrapping of the first reference cable strand between the clamps is removed, and then the first reference cable strand is shaped, and the hexagonal cross-section of the first reference cable strand is shaped into a rectangular cross-section.

[0073] To further ensure the alignment of the main cable, after the first reference cable strand passes through the temporary spreader point 1 and is incorporated into the temporary spreader saddle 2, before incorporating the remaining general cable strands into the temporary spreader saddle 2 based on the preliminary erection steps and the first erection sequence of the first reference cable strand, the steps further include: adjusting the sag of the first reference cable strand. After incorporating the remaining general cable strands into the temporary spreader saddle 2 based on the preliminary erection steps and the first erection sequence of the first reference cable strand, the steps further include: positioning and adjusting the general cable strands according to the alignment of the first reference cable strand so that the alignment of the main cable strands 8 meets the requirements of the as-built alignment. The purpose of this step is to make the first reference cable strand reach the set alignment state, and the remaining general cable strands should be erected according to this alignment state. After each general cable strand is preliminarily erected, its sag also needs to be adjusted.

[0074] Preferably, in the embodiment of the present application, the step of: "Then, according to the second erection sequence with the general cable strands first and the first reference cable strand last, incorporate the main cable strands 8 into the reverse spreader saddle 5 and anchor them on the front anchor face 7 of the horizontal tunnel anchor" specifically includes:

[0075] 401: Remove the last anchored general cable strand from the temporary anchoring system 3;

[0076] 402: Extend the general cable strand through the strand connector 6;

[0077] 403: Incorporate the general cable strand into the reverse spreader saddle 5;

[0078] 404: Turn the general cable strand through the final spreader point 4;

[0079] 405: Anchor the general cable strand on the front anchor face 7 of the horizontal tunnel anchor to complete the final erection of the general cable strand;

[0080] 406: Based on the final erection steps of the general cable strand and the second erection sequence, anchor the remaining main cable strands 8 in the temporary spreader saddle 2 on the front anchor face 7 of the horizontal tunnel anchor to complete the final erection of the main cable strands 8.

[0081] If the erection number of the first reference cable strand is set to 1, and the erection numbers of the remaining general cable strands are successively 2, 3, 4......n. The first erection sequence is: 1, 2, 3, 4.....n; then the second erection sequence is: n......4, 3, 2, 1;

[0082] If the first reference cable strand is set as the first row, and the remaining general cable strands are divided into the second row, the third row.....the nth row, and each row of general cable strands includes at least one general cable strand; the first erection sequence is: the first row, the second row, the third row.....the nth row; the second erection sequence is: the nth row.....the third row, the second row, the first row.

[0083] Specifically, remove the cable strand at the top of the main cable strand 8 from the temporary anchoring system 3, that is, the last general cable strand incorporated into the temporary saddles 2, and extend this general cable strand using the strand connector 6; then use the winches on the gantry of the reverse saddles 5 to lift, horizontally move, and shape this general cable strand into the saddles: install the grippers on the general cable strand at approximately 20 meters in front and behind the main saddle and approximately 20 meters in front of the reverse saddle 5, and connect the winches on the gantry of the tower top and the reverse saddle 5 to the grippers to form a lifting system; then start the winches to lift the entire general cable strand off the catwalk. During the lifting process, the general cable strand automatically horizontally moves above the main cable strand 8 (the remaining general cable strands and the reference cable strand that have not been incorporated into the saddles); after the general cable strand is lifted and horizontally moved, install hexagonal clamps on this general cable strand at approximately 3 meters in front and behind the main saddle and the reverse saddle 5 respectively, release the wrapping of the general cable strand between the clamps, and then shape this general cable strand, shaping the hexagonal cross-section of this general cable strand into a rectangular cross-section; then incorporate this general cable strand into the reverse saddle 5. After incorporating it into the reverse saddle 5, adjust this general cable strand to keep the erection state of the main cable strand 8 outside the temporary cable release point 1 unchanged, where the erection state includes the verticality and the alignment of the main cable strand 8, that is, adjust the verticality and the alignment of this general cable strand here; finally, turn this general cable strand at the final cable release point 4 and use a puller to tow it to be anchored on the front anchor face 7 of the horizontal tunnel anchor.

[0084] After the erection of this general cable strand is finally completed, based on the final erection steps of this general cable strand and the second erection sequence, anchor the main cable strands 8 in the remaining temporary saddles 2 on the front anchor face 7 of the horizontal tunnel anchor to complete the final erection of the main cable strands 8. Zinc filling blocks 9 and pressing devices 10 are also provided on the reverse saddles 5. The inside of the saddle grooves of the reverse saddles 5 can be filled with the zinc filling blocks 9 to prevent the displacement of the main cable strands 8, and then use the pressing devices 10 to press and fix the main cable strands 8 and the zinc filling blocks 9 to further position the main cable strands 8.

[0085] In summary, in this application, by providing the main cable temporary fixing system including the temporary cable saddles 2, the temporary anchoring system 3, and the temporary cable points 1, the erection of the main cable for the horizontal tunnel anchor is achieved. The alignment of the main cable is locked through the main cable temporary fixing system, and then through the conversion of the cable points, that is, the cable strands 8 in the temporary cable saddle 2 are incorporated into the reverse cable saddle 5 in the second order, solving the problem that the reverse cable saddle 5 needs to incorporate the first reference cable strand at the bottom first.

[0086] In the description of this application, it should be noted that the orientation or positional relationship indicated by terms such as "upper" and "lower" is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to this application. Unless otherwise clearly specified and defined, 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 mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0087] It should be noted that in this application, relative terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0088] The above description is only the specific implementation manners of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application will not be limited to the embodiments shown herein, but rather to the broadest scope consistent with the principles and novel features claimed herein.

Claims

1. A method for erecting the main cable of a horizontal tunnel anchor, characterized in that, It includes: Install a temporary anchoring system (3) on the temporary anchoring surface, set a temporary cable dispersion point (1), and set a temporary cable saddle (2) at the temporary cable dispersion point (1) so that the orientation of the temporary cable saddle (2) is opposite to that of the reverse cable saddle (5), and the temporary cable dispersion point (1) and the final cable dispersion point (4) are on the same alignment of the main cable strand (8); Anchoring the main cable strand (8) on the temporary anchoring system (3) in the first erection order with the first reference strand first and the general strands following, passing through the temporary cable dispersion point (1) and incorporating it into the temporary cable saddle (2). The main cable strand (8) includes a reference strand and general strands; Then, in the second erection order with the general strands first and the first reference strand following, incorporate the main cable strand (8) into the reverse cable saddle (5) and anchor it on the front anchoring surface (7) of the horizontal tunnel anchor.

2. The method for erecting the main cable of a horizontal tunnel anchor as claimed in claim 1, wherein: Set the erection number of the first reference strand as 1, and the erection numbers of the remaining general strands are successively 2, 3, 4......n. The first erection order is: 1, 2, 3, 4.....n.

3. The horizontal tunnel anchor main cable erection method according to claim 1, characterized in that: Set the first reference strand as the first row, and the remaining general strands are divided into the second row, the third row....., the nth row. Each row of general strands includes at least one general strand. The first erection order is: the first row, the second row, the third row....., the nth row.

4. The horizontal tunnel anchor main cable erection method according to claim 1, characterized in that: Anchoring the main cable strand (8) on the temporary anchoring system (3) in the first erection order with the first reference strand first and the general strands following, passing through the temporary cable dispersion point (1) and incorporating it into the temporary cable saddle (2). The specific steps include: Pull the first reference strand to the anchor chamber; Temporarily anchor the anchor heads at both ends of the first reference strand on the temporary anchoring system (3); Pass the first reference strand through the temporary cable dispersion point (1) and incorporate it into the temporary cable saddle (2) to complete the preliminary erection of the first reference strand; Based on the preliminary erection steps of the first reference strand and the first erection order, incorporate the remaining general strands into the temporary cable saddle (2) to complete the preliminary erection of the main cable strand (8).

5. The method for erecting the main cable of a horizontal tunnel anchor as claimed in claim 4, wherein: After passing the first reference strand through the temporary cable dispersion point (1) and incorporating it into the temporary cable saddle (2), and before incorporating the remaining general strands into the temporary cable saddle (2) based on the preliminary erection steps of the first reference strand and the first erection order, the steps further include: adjusting the sag of the first reference strand; After incorporating the remaining general strands into the temporary cable saddle (2) based on the preliminary erection steps of the first reference strand and the first erection order, the steps further include: positioning and adjusting the general strands according to the alignment of the first reference strand so that the alignment of the main cable strand (8) meets the requirements of the as-built alignment.

6. The horizontal tunnel anchor main cable erection method according to claim 4, characterized in that: After temporarily anchoring the anchor heads at both ends of the first reference strand on the temporary anchoring system (3) and before passing the first reference strand through the temporary cable dispersion point (1) and incorporating it into the temporary cable saddle (2), the steps further include: Carry out lifting, transverse movement, and shaping and saddling operations on the first reference strand.

7. The horizontal tunnel anchor main cable erection method according to claim 6, characterized in that: In the operation of lifting, horizontally shifting, shaping and saddling the first reference cable strand, the specific steps include: Lift and horizontally shift the first reference cable strand, and horizontally shift the first reference cable strand above the temporary strand splay saddle (2); Shape the first reference cable strand so that the cross-section of the first reference cable strand is shaped to fit the shape of the saddle groove of the temporary strand splay saddle.

8. The horizontal tunnel anchor main cable erection method according to claim 1, characterized in that: Then, in the second erection sequence with the general cable strands first and the first reference cable strand second, incorporate the main cable strands (8) into the reverse strand splay saddle (5) and anchor them on the front anchor face (7) of the horizontal tunnel anchor. The specific steps include: Remove the last incorporated general cable strand from the temporary anchoring system (3); Lengthen the general cable strand through the strand connector (6); Incorporate the general cable strand into the reverse strand splay saddle (5); Turn the general cable strand through the final strand splay point (4); Anchor the general cable strand on the front anchor face (7) of the horizontal tunnel anchor to complete the final erection of the general cable strand; Based on the final erection steps of the general cable strand and the second erection sequence, anchor the main cable strands (8) in the remaining temporary strand splay saddles (2) on the front anchor face (7) of the horizontal tunnel anchor to complete the final erection of the main cable strands (8).

9. The horizontal tunnel anchor main cable erection method according to claim 1, characterized in that: Then, in the second erection sequence with the general cable strands first and the first reference cable strand second, incorporate the main cable strands (8) into the reverse strand splay saddle (5) and anchor them on the front anchor face (7) of the horizontal tunnel anchor, keeping the erection state of the main cable strands (8) outside the temporary strand splay point (1) unchanged.

10. The horizontal tunnel anchor main cable erection method according to claim 9, characterized in that: The erection state includes the verticality of the main cable strands (8) and the alignment of the main cable strands (8).

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