CN108643923B - Fabricated supporting structure and construction method using same - Google Patents
Fabricated supporting structure and construction method using same Download PDFInfo
- Publication number
- CN108643923B CN108643923B CN201810366333.4A CN201810366333A CN108643923B CN 108643923 B CN108643923 B CN 108643923B CN 201810366333 A CN201810366333 A CN 201810366333A CN 108643923 B CN108643923 B CN 108643923B
- Authority
- CN
- China
- Prior art keywords
- arch
- temporary support
- excavation
- flange
- excavation part
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/14—Lining predominantly with metal
- E21D11/18—Arch members ; Network made of arch members ; Ring elements; Polygon elements; Polygon elements inside arches
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D19/00—Provisional protective covers for working space
Abstract
The invention discloses a tunnel subsection excavation assembled arch center and a mechanized construction process; taking a tunnel CD method excavation process as an example, folding the arch frame according to sections, and hoisting the arch frame to the front of a tunnel face by an arch frame installing machine; connecting and fixing the arch centering and the temporary support excavated at the first part, grabbing and lifting the arch centering by an arch centering installing machine, completely unfolding the arch centering and the temporary support, and positioning; installing an inverted arch frame and the rest part of temporary support of the second excavation part below the left side, and connecting the inverted arch frame and the rest part of temporary support of the first excavation part above the left side; mounting a supporting arch frame of the third excavation part above the right side, and connecting the supporting arch frame with the arch frame of the first excavation part above the left side; and the inverted arch of the lower excavation part on the right side is installed to be connected with the supporting arch frame of the third excavation part on the upper right side and the inverted arch of the second excavation part on the lower left side. The invention realizes the mechanized installation of the sub-supporting structure, improves the construction efficiency and ensures the construction safety.
Description
Technical Field
The invention is suitable for the process of excavation in underground engineering, and particularly relates to a flange node, an assembled supporting structure comprising the node and a construction process for carrying out mechanized rapid construction by adopting an assembled arch center.
Background
Along with the rapid development of traffic tunnel construction, the construction scale is gradually increased, complex geological conditions such as weak surrounding rocks, fault fracture zones and the like are inevitable in the construction process, the surrounding rocks are loosened and damaged seriously, the vault is often unstable, stress concentration of arch feet and the like are caused, so that safety problems such as large deformation of the surrounding rocks, breakage of supporting members, vault chipping and even collapse are caused, and casualties and great economic loss are easily caused.
At present, the support construction device and the construction method of underground engineering in China have the following problems:
1. the joint of the temporary supporting and supporting structure adopts the existing common flange joint, and the single arch is spliced manually, so that the joint structure has the problems of low construction speed, low construction efficiency and the like;
2. at present, an assembled arch center is not arranged in underground engineering, and after tunnel excavation is finished, the arch center is installed manually under the condition that no support measures are provided, so that the construction link which is most dangerous to workers in the tunnel construction process is realized; in the period, the construction is carried out with high strength and high load, workers are easy to be exhausted, and the stability of surrounding rocks is poor, so that the construction safety of the construction needs to be strictly guaranteed in the tunnel construction. In addition, as the population dividend disappears, the contradiction between the human resource cost and the engineering economy becomes increasingly prominent.
3. In the process of excavation and support by a tunnel division method, the arch frame support structure needs to be erected in a division manner, construction is difficult, and all arch frames are connected through manual installation of flange nodes; the bow member is heavy, and manpower construction intensity is big, and the efficiency of construction is low, and traditional construction method progress is slow.
Based on the above problems, a safe and efficient mechanized construction technology is urgently needed in tunnel construction to improve construction efficiency and ensure construction safety.
Disclosure of Invention
In order to solve the problems, the invention provides a flange node suitable for distributed excavation construction of underground engineering by taking the CD method excavation of four parts of a tunnel as an example.
The invention also provides an excavation assembly type supporting structure which can be used for one-time erection of the subsection arch centering.
The invention also provides a method for mechanical construction by adopting the assembled arch center, which can ensure the construction safety and improve the construction efficiency.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a flange node which comprises a flange plate I, a flange plate II and a guide plate, wherein an inserting clamping device is arranged on the flange plate I, a guide receiving device is arranged on the flange plate II, the inserting clamping device is inserted into the guide receiving device, and the guide plate is matched with the flange plate I and the flange plate II to realize guide.
Furthermore, the inserted clamping device is a bulge arranged at the center of the flange plate I; the guide receiving device is a guide post arranged on the flange plate II, the center of the guide post is provided with an insertion hole, and the bulge is inserted into the insertion hole.
Furthermore, the guide plates comprise two guide plates which are respectively and symmetrically arranged on two sides of the flange plate I and the flange plate II to form a fan-shaped structure.
Furthermore, the flange plate I and the flange plate II are respectively arranged on two adjacent arches, and a stop block is arranged at the top of the flange plate I or the flange plate II.
The invention also provides an assembled supporting structure, and the connection between the arches adopts the novel flange joint.
The invention also provides an underground engineering CD method excavation assembled supporting structure, which comprises a sub-assembled arch frame and a temporary support, wherein the arch frame of the first excavation part, the arch frame of the third excavation part and the temporary support I which are positioned on the upper section respectively comprise a plurality of sections, and adjacent sections are connected through assembled nodes; the arch frame and the temporary support I of the first excavation part are connected through an assembly type node or an assembly type flange; the arch center of the first excavation part is connected with the arch center of the third excavation part through the flange node; the arch centering and the temporary support II of the second and fourth digging parts on the lower section are respectively provided with only one section, and the arch centering and the temporary support II of the second and fourth digging parts are connected with the arch centering and the temporary support I of the first and third digging parts on the upper section through the assembled flange.
The invention also provides a construction method by utilizing the supporting structure, which comprises the following steps:
step 1: folding the arch frame according to sections, and lifting the arch frame to the front of the tunnel face;
step 2: opening a connecting node of an arch frame of a first excavation part above the left side and a temporary support I, opening an upper side connecting node of the arch frame, grabbing and lifting the arch frame, and opening lower side nodes of the arch frame and the temporary support I;
and step 3: adjusting the arch frame position of the first excavation part above the left side, and connecting the longitudinal positioning connecting device with the previous arch frame to realize accurate positioning of the distributed arch frames;
and 4, step 4: installing an inverted arch of the second excavation part below the left side, connecting the inverted arch with an arch of the first excavation part above the left side, and simultaneously connecting the temporary support II with the temporary support I;
and 5: installing an arch center of the third excavation part above the right side, and connecting the arch center with the arch center of the first excavation part above the left side;
step 6: and installing an inverted arch frame of the fourth excavation part below the right side, and connecting the inverted arch frame with the arch frame of the third excavation part above the right side and the inverted arch frame of the second excavation part.
Furthermore, in the construction method, the arch frame and the temporary support I of the first excavation part mainly comprise two flange plates and a pin shaft for connecting the flange plates, and the arch frame and the temporary support I can be connected and folded through the rotation of the pin shaft; before the arch center is lifted, the flange plates are butted and fixed by using bolts, so that the arch center and the temporary support I are fastened into a whole to finish one-time erection.
In the construction method, after the arch centering and the temporary support I of the first excavation portion are lifted by the arch centering machine, the fabricated node on the lower side thereof is not unfolded, the lower sides of the arch centering and the temporary support I are in a free-falling state, and the auxiliary installing machine extends the fabricated node which is not unfolded, thereby completing the overall erection of the segmental arch centering.
Further, in the step 4 and the step 6, mechanical construction is mainly used, and manual operation is used as assistance; namely: the arch installing machine grabs the arch and places the assigned position, and the installation of the flange node is assisted manually and is connected.
Furthermore, the step 2 of opening the connecting node between the arch frame of the first excavation portion and the temporary support I means that the arch frame and the temporary support I are fastened and fixed through an assembly node or an assembly flange and then mechanically lifted.
Furthermore, the step 2 of opening the upper side nodes of the arch frame of the first excavation portion and the temporary support I means that the assembled nodes at the corresponding positions are clamped and fixed, the nodes at the lower side parts are not clamped and fixed, and the arch frame of the excavation portion is completely erected by using the auxiliary mounting machine after being lifted.
Furthermore, in step 2, the arch centering at the arch springing is opened by using the auxiliary installing machine, taking the first excavation part as an example, the arch centering is lifted, the lower side parts of the arch centering and the temporary support are in a free-falling state, the auxiliary installing machine pushes the free ends of the lower sides of the arch centering and the temporary support outwards, the assembled nodes are clamped and fixed, and the complete erection of the segmental arch centering and the temporary support is realized.
Further, the arch frame grabbing and lifting in the step 2 refers to grabbing and lifting the upper part of the arch frame of the first excavation part by using an arch frame installing machine manipulator, lifting the arch frame to a specified position, and accurately controlling the manipulator to connect and fix the longitudinal positioning connecting device and a guiding device welded on the surface of the previous arch frame, so that the accurate positioning of the subsection arch frame is realized.
The longitudinal positioning and connecting device is used for mounting the arch to the surface of the arch to be lifted before the arch is lifted.
The invention has the beneficial effects that:
(1) the invention provides a tunnel segmental excavation assembled arch center and a mechanized construction process, which realize mechanized construction of arch center erection, improve construction efficiency and ensure construction safety.
(2) The tunnel assembled arch centering provided by the invention can realize one-time erection of the whole arch centering, and the assembled arch centering is suitable for a traditional profile steel arch centering and is also suitable for a novel high-strength confined concrete arch centering.
(3) The specially-made flange joint device provided by the invention can realize the quick connection of arches of the upper left and right excavation parts, simplifies the traditional process of manually connecting flange joints and has high construction speed;
drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.
FIG. 1 is a schematic diagram of the four CD excavation steps of the present invention;
FIG. 2 is a first excavation arch and temporary bracing assembly of the present invention;
FIG. 3 is a schematic view of the connection of the arch of the first excavation portion and the temporary support fabricated node of the present invention;
FIG. 4 is a schematic view of a first excavation arch and temporary support fabricated flange joint of the present invention;
FIG. 5 is a special flange joint for connecting arches of left and right excavated portions of an upper section according to the present invention;
FIG. 6 is a schematic view of the internal structure of the tailored flange joint of the present invention.
Wherein: 1. the first excavation portion of left side top, 2, left side below second excavation portion, 3, right side top third excavation portion, 4, right side below fourth excavation portion, 5, the bow member, 6, support temporarily, 7, assembled flange node or assembled node, 8, upside node, 9, activity round pin axle, 10, assembled connecting device, 11, direction pressure-bearing connecting device, 12, the ring flange, 13, the deflector, 14, the top dog, 15, direction receiving arrangement, 16, ring flange II, 17, interpolation block device, 18 ring flange I.
Detailed description of the preferred embodiments
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an", and/or "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof; for convenience of description, the words "up", "down", "left" and "right" in the present invention only indicate the correspondence with the up, down, left and right directions of the drawings, and do not limit the structure.
As described in the background art, the installation of the arch center by manpower without any support measures after the tunnel excavation is completed is the most dangerous construction link for workers in the tunnel construction process. In the period, the construction is carried out with high strength and high load, workers are easy to be exhausted, and the stability of surrounding rocks is poor, so that the construction safety of the construction needs to be strictly guaranteed in the tunnel construction. Secondly, as the population dividend disappears, the contradiction between the human resource cost and the engineering economy becomes increasingly prominent. Meanwhile, in the process of excavation and support by a tunnel CD method, an arch frame support structure needs to be erected in part, the joint connection process of temporary supports and the support structure is complex in splicing, and the construction is difficult; the bow member is heavy, and manpower construction intensity is big, and the efficiency of construction is low, and traditional construction method progress is slow. Based on the above problems, a safe and efficient mechanized construction technology is urgently needed in tunnel construction to improve construction efficiency and ensure construction safety.
In a typical embodiment of the present application, as shown in fig. 1, the present invention proposes to fold two arch frames of a first excavation portion 1 above the left side and a third excavation portion 3 above the right side outside a tunnel according to sections, and to form a folding arch frame, and then to hoist the folding arch frame to the front of the tunnel face by using an arch frame installing machine; the left lower second excavation portion 2 and the right lower fourth excavation portion 4 are of integral structures of one section respectively.
The invention adopts an underground engineering CD method excavation assembled supporting structure, which comprises a sub-assembled arch center and a temporary support, and is characterized in that the arch center of a first excavation part, the arch center of a third excavation part and the temporary support I which are positioned on the upper section respectively comprise a plurality of sections, and adjacent sections are connected through an assembled node; the arch frame and the temporary support I of the first excavation part are connected through an assembly type node or an assembly type flange; connecting the arch frame of the first excavation part with the new flange node of the arch of the third excavation part;
the arch centering and the temporary support II of the second and fourth digging parts on the lower section are respectively provided with only one section, and the arch centering and the temporary support II of the second and fourth digging parts are connected with the arch centering and the temporary support I of the first and third digging parts on the upper section through the assembled flange. The structure of the temporary support I and the temporary support II in the present invention is different from that of the temporary support 6 shown in FIG. 2.
The overall excavation method comprises the following steps:
opening and fixing an assembly flange node or an assembly node 7 between an assembly arch center 5 and a temporary support I6 of a first excavation part, opening an upper side node 8 of the arch center, grabbing and lifting the arch center 5 by using an arch center mounting machine, and after the arch center is lifted to a specified position, opening lower side nodes of the arch center 5 and a temporary support I6 by using an auxiliary mounting machine; the arch installing machine accurately adjusts the position of the arch, and connects the longitudinal positioning connecting device with the previous arch to realize the accurate positioning of the distributed arches; installing an inverted arch frame and the rest part of temporary support of the second excavation part 2 below the left side, and connecting the inverted arch frame and the rest part of temporary support with a supporting arch frame 5 and a temporary support I6 of the first excavation part above; mounting a supporting arch frame 5 of the third excavation part 3 above the right side, connecting the supporting arch frame 5 of the first excavation part 1 above the left side, and accurately positioning the segmental arch frame; the inverted arch of the fourth excavated part 4 below the right side is installed and connected to the supporting arch 5 of the third excavated part 3 above the right side and the inverted arch of the second excavated part 2 below the left side.
The specific excavation method is as follows:
(1) and assembling and folding the single arch outside the tunnel, and hoisting the folding arch to the front of the tunnel face by using an arch installing machine.
Specifically, when the arches are spliced, the arches 5 of the first excavation portion 1 and the third excavation portion 3 on the right side of the section of the first excavation portion are mainly pre-spliced, and the inverted arches of the second excavation portion 2 and the fourth excavation portion 4 below the section can be directly installed.
As shown in figure 1, the CD construction is that excavation and supporting are carried out in sequence according to the sequence of 1-4, and the temporary support 6 is completely installed through two excavation.
Specifically, the temporary supports 6 above the horizontal boundary of the excavated part are connected with the supporting arch of the first excavated part 1, and are mechanically installed by an arch installing machine; the temporary supports below the horizontal boundary of the excavated portion are directly connected to the upper temporary supports and the inverted arch of the second excavated portion 2 when the second excavated portion 2 is erected as a supporting structure.
(2) And (3) opening and fixing a connecting node between the fabricated arch 5 of the first excavation part 1 and the temporary support I6, opening a fabricated node 8 on the upper side of the arch, and grabbing and lifting the arch 5 by using an arch mounting machine.
Specifically, the connecting node between the fabricated arch 5 and the temporary support I6 can be divided into two forms, namely a fabricated node and a fabricated flange node.
As shown in fig. 3, the automatic assembly type node adopts the prior art, and includes an assembly type connecting device 10 and a guiding pressure-bearing connecting device 11, and a movable pin 9 of the assembly type connecting device 10 and the guiding pressure-bearing connecting device 11. The assembly type connecting device 10 and the guide pressure-bearing connecting device 11 are respectively welded to the end parts of adjacent arches and are connected through a movable pin shaft 9. The assembled connecting device 10 is provided with a spring pin, the bearing connecting device 11 is provided with a shaft hole, and the joints are completely clamped to enable the spring pin to be embedded into the shaft hole, so that the arch frame is folded and extended.
As shown in fig. 4, the assembled flange joint 7 includes a pair of flanges 12 and a movable pin 9, and before the arch frame is lifted, the two assembled flange joints 7 are completely closed and fixed with fixing bolts.
As shown in fig. 5 and 6, the specially-made flange joint designed for the present invention is connected to the arch center of the first excavated part 1 above the left side through the specially-made flange joint. The special flange node comprises three forms of a flange node with a central guide device, a positioning baffle node and a detachable guide node. The guide plate mainly comprises a guide plate 13, a top stop block 14, a guide receiving device 15, an inserted clamping device 17, a flange plate I18 and a flange plate II 16, wherein the inserted clamping device 17 is arranged on the flange plate I, the guide receiving device 15 is arranged on the flange plate II18, the inserted clamping device is inserted into the guide receiving device 15, and the guide plate 14 is matched with the flange plate I and the flange plate II to realize guide.
The inner inserting clamping device is a protrusion arranged at the center of the flange plate I, the guiding receiving device is a guiding column arranged on the flange plate II, an insertion hole is formed in the center of the guiding column, and the protrusion is inserted into the insertion hole.
The guide plates 14 comprise two guide plates which are respectively arranged on two sides of the flange plate I and the flange plate II and are distributed in a sector shape, the flange plate I and the flange plate II are respectively arranged on two adjacent arches, and a stop block is arranged at the top of the flange plate I or the flange plate II; the two guide plates 14 are symmetrically mounted on one of the arches by bolts, as shown in fig. 6.
Specifically, the first excavated portion supporting structure is installed by first opening the connection node between the arch frame 5 and the temporary support 6, and then mechanically lifting the arch frame after opening the upper side node of the excavated portion.
(3) After the mounting machine grabs and lifts the arch center 5 to a designated position, the auxiliary mounting machine opens the lower side nodes of the arch center 5 and the temporary support 6; the arch installing machine accurately adjusts the position of the arch 5, and connects the longitudinal positioning connecting device with the previous arch to realize the accurate positioning of the distributed arches.
Specifically, taking the first excavated part as an example, the lower side portions of the arch 5 and the temporary supports 6 are in a free-sagging state after the arch 5 is lifted, and the auxiliary installing machine pushes the lower free ends of the arch 5 and the temporary supports 6 outward to clamp and fix the fabricated nodes 8, thereby completely installing the arch and the temporary supports of the excavated part.
(4) The inverted arch and the rest of the temporary supports of the second excavation section 2 are connected to the supporting arch 5 and the temporary supports 6 of the first excavation section above.
Specifically, the arch frame 5 and the temporary support 6 of the upper excavation portion are connected through flange joints. In the process, mechanical construction is mainly used, and manual operation is used as assistance. Namely: the arch center installing machine grabs the arch center 5 and puts the arch center to the assigned position, and the flange node is installed in an auxiliary mode in a manual mode to carry out connection.
(5) And mounting a supporting arch frame 5 of the third excavation part 3 above the right side, and connecting the supporting arch frame 5 of the first excavation part 1 above the left side.
(6) And installing an inverted arch frame of the fourth excavation part below the right side, and connecting the inverted arch frame with the arch frame of the third excavation part above the right side and the inverted arch frame of the second excavation part.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (8)
1. An underground engineering CD method excavation assembled supporting structure comprises a sub-assembly type arch frame and a temporary support, and is characterized in that the arch frame of a first excavation part, the arch frame of a third excavation part and the temporary support I which are positioned on the upper section respectively comprise a plurality of sections, and adjacent sections are connected through assembly type nodes; the arch frame and the temporary support I of the first excavation part are connected through an assembly type node or an assembly type flange; the arch center of the first excavation part is connected with the arch center of the third excavation part through flange nodes; the arch centering and the temporary support II of the second and fourth digging parts positioned on the lower section are respectively provided with only one section, and the arch centering and the temporary support II of the second and fourth digging parts are connected with the arch centering and the temporary support I of the first and third digging parts on the upper section through an assembly type flange;
the flange joint comprises a flange plate I, a flange plate II and a guide plate, wherein an inserting clamping device is arranged on the flange plate I, a guide receiving device is arranged on the flange plate II, the inserting clamping device is inserted into the guide receiving device, and the guide plate is matched with the flange plate I and the flange plate II to realize guide.
2. The underground mining CD excavation fabricated supporting structure of claim 1, wherein the internal insertion engaging means is a protrusion provided at a central position of the flange I, the guiding receiving means is a guiding post provided on the flange II, a hole is provided at a center of the guiding post, and the protrusion is inserted into the hole.
3. The underground construction CD excavation fabricated supporting structure of claim 1, wherein the guide plates comprise two guide plates symmetrically disposed on two sides of the flange I and the flange II to form a fan-shaped structure.
4. The underground construction CD excavation assembled supporting structure of claim 1, wherein the flange plate I and the flange plate II are respectively installed on two adjacent arches, and a stop block is arranged on the top of the flange plate I or the flange plate II.
5. A method of constructing using the supporting structure of claim 1, comprising the steps of:
step 1: folding the arch frame according to sections, and lifting the arch frame to the front of the tunnel face;
step 2: opening the assembled node of the arch frame and the temporary support I of the first excavation part above the left side, opening the assembled node on the upper side of the arch frame, grabbing and lifting the arch frame, and opening the assembled node on the lower side of the arch frame and the temporary support I;
and step 3: adjusting the arch frame position of the first excavation part above the left side, and connecting the arch frame position with the previous arch frame through a longitudinal positioning connecting device to realize accurate positioning of the distributed arch frames;
and 4, step 4: installing an arch center of the second excavation part below the left side, connecting the arch center with the arch center of the first excavation part above the left side, and simultaneously connecting the temporary support II with the temporary support I;
and 5: installing an arch center of the third excavation part above the right side, and connecting the arch center with the arch center of the first excavation part above the left side;
step 6: and installing an arch center of the fourth excavation part below the right side, and connecting the arch center with the arch center of the third excavation part above the right side and the arch center of the second excavation part below the left side.
6. The construction method according to claim 5, wherein the fabricated node connecting the arch of the first excavated portion and the temporary support I is composed of two flanges and a pin connecting the flanges, and the arch is connected and folded with the temporary support I by rotation of the pin; before the arch center is lifted, the flange plates are butted and fixed by using bolts, so that the arch center and the temporary support I are fastened into a whole to finish one-time erection.
7. The construction method according to claim 5, wherein the arch of the first excavated portion and the temporary support I are lifted by the arch installing machine, the fabricated node at the lower side thereof is not unfolded, the lower sides of the arch and the temporary support I are in a free-drooping state, and the auxiliary installing machine extends the undeployed fabricated node to complete the integral erection of the segmental arch.
8. The construction method according to claim 5, wherein the arch lifting and hoisting in the step 2 is to lift the upper part of the arch of the first excavation part to a designated position by using an arch mounting machine manipulator, and precisely control the manipulator to connect and fix the longitudinal positioning and connecting device with the guiding device welded on the surface of the previous arch to realize the precise positioning of the segmental arch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810366333.4A CN108643923B (en) | 2018-04-23 | 2018-04-23 | Fabricated supporting structure and construction method using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810366333.4A CN108643923B (en) | 2018-04-23 | 2018-04-23 | Fabricated supporting structure and construction method using same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108643923A CN108643923A (en) | 2018-10-12 |
| CN108643923B true CN108643923B (en) | 2020-08-25 |
Family
ID=63747213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810366333.4A Active CN108643923B (en) | 2018-04-23 | 2018-04-23 | Fabricated supporting structure and construction method using same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108643923B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022254325A3 (en) * | 2021-05-31 | 2023-01-05 | Officine Maccaferri Italia S.R.L. | Centring for supporting and consolidating an excavation, and method for installing such a centring inside an excavation |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109306870A (en) * | 2018-10-26 | 2019-02-05 | 河北创恒智能装备科技有限公司 | Full section of tunnel construction integer support steel arch-shelf and method for protecting support |
| JP7297206B2 (en) | 2019-03-04 | 2023-06-26 | 株式会社安藤・間 | Connection Structure and Connection Method of Tunnel Shoring |
| IT202100014225A1 (en) * | 2021-05-31 | 2022-12-01 | Officine Maccaferri Italia S R L | Rib for supporting and consolidating an excavation, and method for installing such a rib within an excavation |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102268999A (en) * | 2010-06-01 | 2011-12-07 | 颜曙光 | Method for improving support stability of U-shaped steel arch centering and connecting assembly |
| CN106795766A (en) * | 2014-06-04 | 2017-05-31 | 奥菲奇内·马卡费里意大利有限责任公司 | Attachment means for connecting the structural detail of rib-shaped piece and network structure |
| CN206503608U (en) * | 2017-02-22 | 2017-09-19 | 天津大学 | A kind of contractibility assembled steel board mount |
| CN107701207A (en) * | 2017-11-28 | 2018-02-16 | 山东天勤工程科技有限公司 | Subterranean tunnel assembled bow member support system and mechanized construction method |
| CN207673356U (en) * | 2017-12-08 | 2018-07-31 | 山东天勤工程科技有限公司 | Underground engineering assembled arch Automatic Link Establishment |
| JP6374050B1 (en) * | 2017-04-07 | 2018-08-15 | 前田建設工業株式会社 | Steel support construction connection structure, connection method, and erection method |
-
2018
- 2018-04-23 CN CN201810366333.4A patent/CN108643923B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102268999A (en) * | 2010-06-01 | 2011-12-07 | 颜曙光 | Method for improving support stability of U-shaped steel arch centering and connecting assembly |
| CN106795766A (en) * | 2014-06-04 | 2017-05-31 | 奥菲奇内·马卡费里意大利有限责任公司 | Attachment means for connecting the structural detail of rib-shaped piece and network structure |
| CN206503608U (en) * | 2017-02-22 | 2017-09-19 | 天津大学 | A kind of contractibility assembled steel board mount |
| JP6374050B1 (en) * | 2017-04-07 | 2018-08-15 | 前田建設工業株式会社 | Steel support construction connection structure, connection method, and erection method |
| CN107701207A (en) * | 2017-11-28 | 2018-02-16 | 山东天勤工程科技有限公司 | Subterranean tunnel assembled bow member support system and mechanized construction method |
| CN207673356U (en) * | 2017-12-08 | 2018-07-31 | 山东天勤工程科技有限公司 | Underground engineering assembled arch Automatic Link Establishment |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022254325A3 (en) * | 2021-05-31 | 2023-01-05 | Officine Maccaferri Italia S.R.L. | Centring for supporting and consolidating an excavation, and method for installing such a centring inside an excavation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108643923A (en) | 2018-10-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108643923B (en) | Fabricated supporting structure and construction method using same | |
| CN109183629B (en) | Large cantilever bent cap prefabrication and assembly method | |
| KR102038877B1 (en) | Pile frame and its installation method | |
| CN108104832B (en) | underground engineering assembled confined concrete arch center and mechanized construction method | |
| CN103866693B (en) | A kind of mounting method of steel concrete bowstring arch bridge arch rib | |
| CN106640149A (en) | Steel arch frame suitable for semi-automatic installation of large cross-section tunnel and installation method of steel arch frame | |
| KR200417438Y1 (en) | Bracket structure for girder and slab construction | |
| CN111017698B (en) | Hoisting and overturning method for rectangular pipe joint with super-large section and applicable device thereof | |
| CN105822329B (en) | A kind of construction method of support bracket, supporting construction and supporting construction | |
| CN104110002A (en) | Method for replacing bridge deck slabs of steel truss girder bridge | |
| CN110093862A (en) | Vertically and horizontally assembled three working face Bridge Erectors and bent cap can be achieved without sidewalk section assembling engineering method | |
| CN110552722B (en) | Fabricated reinforcement cage construction method for rapid tunnel lining | |
| CN109736179B (en) | Assembled construction method for tied arch bridge | |
| JP2020002778A (en) | Bridge pier construction method | |
| CN218814340U (en) | Large-span truss string high-altitude sliding construction structure | |
| CN111441803A (en) | Pull-buckle type connecting device suitable for steel arch frame segment of tunnel and mounting method thereof | |
| CN209039991U (en) | A kind of great cantilever bent cap precast assembly structure | |
| CN106835984B (en) | The reverse construction method of installation of slug matching bridge Bridge Erector | |
| CN211144522U (en) | Snap-in connection for steel arch segments of tunnels | |
| CN212316935U (en) | Disassembly-free support rod piece and foundation pit supporting system | |
| CN112982169A (en) | Mounting method of through tied arch bridge | |
| KR20190066754A (en) | Formwork structure supported by column unit | |
| CN209443577U (en) | A kind of steel structure member | |
| CN109868749B (en) | Wind-resistant locking device for erecting closure openings one by one through steel trussed beams and using method | |
| CN210946462U (en) | Hollow steel pipe arch rib structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |