CN112081596A - Reaction frame structure of shield starting well - Google Patents
Reaction frame structure of shield starting well Download PDFInfo
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- CN112081596A CN112081596A CN202010888171.8A CN202010888171A CN112081596A CN 112081596 A CN112081596 A CN 112081596A CN 202010888171 A CN202010888171 A CN 202010888171A CN 112081596 A CN112081596 A CN 112081596A
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 98
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 63
- 238000004873 anchoring Methods 0.000 claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 20
- 239000010959 steel Substances 0.000 claims description 20
- 230000002787 reinforcement Effects 0.000 claims description 14
- 239000007858 starting material Substances 0.000 claims 2
- 238000010276 construction Methods 0.000 abstract description 16
- 238000000034 method Methods 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009415 formwork Methods 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 230000005641 tunneling Effects 0.000 description 2
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000003351 stiffener Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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
- E21D11/15—Plate linings; Laggings, i.e. linings designed for holding back formation material or for transmitting the load to main supporting members
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
- E21D20/02—Setting anchoring-bolts with provisions for grouting
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
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Abstract
The invention provides a shield starting well reaction frame structure, which belongs to the technical field of shield reaction frames and comprises a plurality of anchor rods, two connecting columns and a supporting seat. The anchor rods are used for anchoring into the stratum on one side of the starting well, and the anchoring directions of the anchor rods are the same as the jacking direction of the jacking pipe. The two connecting columns are used for being installed on two sides of the bottom of the starting well, and reinforcing meshes are arranged in the connecting columns. Concrete for fixing the reinforcing mesh and the anchor rods is poured into the connecting column. The supporting seat is located between two spliced poles, and the both sides of reaction frame are connected fixedly with two spliced poles respectively, and the reaction frame is used for providing the counter-force to the top of push pipe with the help of a plurality of stock. The plurality of anchor rods anchored in the shield starting well reaction frame structure provided by the invention can not only reinforce the stratum on one side of the starting well, but also provide the reaction force provided by the reaction frame for the shield machine, reduce the space volume occupied by the reaction frame, ensure the construction safety and reduce the cost investment.
Description
Technical Field
The invention belongs to the technical field of shield reaction frames, and particularly relates to a shield starting well reaction frame structure.
Background
In the shield construction, the reaction frame is an indispensable device for providing reaction force for the tunneling of the shield machine during the shield starting period, and the strength and the rigidity of the reaction frame are directly related to the smooth starting of the shield machine and the like. However, the existing reaction frame structure is generally provided with a plurality of supporting ribs at the rear, so that the excavation amount required by the starting well is large, and meanwhile, the increase of the volume of the starting well needs to reinforce the surrounding geology to avoid the problems of collapse and the like, so that the existing reaction frame construction method is large in engineering amount and high in construction cost.
Disclosure of Invention
The invention aims to provide a reaction frame structure of a shield starting well, and aims to solve the problems that the construction amount of the reaction frame built in the starting well is large and the construction cost is high.
In order to achieve the purpose, the invention adopts the technical scheme that: providing a shield originating well reaction frame structure comprising:
the anchor rods are used for anchoring into the stratum on one side of the starting well, and the anchoring directions of the anchor rods are the same as the jacking direction of the jacking pipe;
the two connecting columns are used for being installed on two sides of the bottom of the starting well, reinforcing meshes are arranged in the connecting columns, and the reinforcing meshes are used for being welded and fixed with the anchor rods on the same side; concrete for fixing the reinforcing mesh and the anchor rods is poured into the connecting column;
the supporting seat is located two between the spliced pole, placed the reaction frame on the supporting seat, the both sides of reaction frame respectively with two the spliced pole is connected fixedly, the reaction frame is used for providing the counter-force to the jacking of push pipe with the help of a plurality of stock.
As another embodiment of the application, a plurality of the anchor rods are parallel to each other and are transversely arranged at intervals from top to bottom.
As another embodiment of the present application, a connection plate is fixed to the bottom of the mesh reinforcement, and the connection plate is used for being installed on an originating well.
As another embodiment of this application, be connected with the strengthening rib between two the top of spliced pole, the strengthening rib is the I-steel, the both ends of I-steel respectively with two reinforcing bar net welded fastening.
As another embodiment of the application, tension discs are fixed at the end parts of a plurality of anchor rods positioned at one side of the originating well, and the tension discs are vertically arranged inside the connecting column.
As another embodiment of the application, a plurality of avoidance grooves for avoiding a plurality of anchor rods are formed on two side edges of the reaction frame; the top of the reaction frame is provided with a yielding groove for yielding the I-shaped steel.
As another embodiment of the present application, the side of the connection column is provided with a plurality of stiffeners for abutting against the sidewall of the originating well.
As another embodiment of this application, two the boss extends in opposite directions, the spliced pole with the boss cooperation is used for the joint reaction frame.
As another embodiment of this application, the spliced pole with be connected with the anchorage bar between the reaction frame, the anchorage bar runs through in proper order run through the spliced pole with the setting of reaction frame.
As another embodiment of the application, a reinforcing sleeve is sleeved on the outer peripheral surface of the anchor rod located in the starting well, one end of the reinforcing sleeve is used for being fixed on the side wall of the starting well, and the other end of the reinforcing sleeve is used for being welded and fixed with the reinforcing mesh.
The shield starting well reaction frame structure provided by the invention has the beneficial effects that: compared with the prior art, a plurality of anchor rods are anchored into one side of the starting well in the shield starting well reaction frame structure, and the anchor rods are anchored into the stratum. Two connecting columns are arranged on two sides of the bottom of the originating well, a reinforcing mesh in each connecting column is welded and fixed with a plurality of anchor rods, and the reinforcing mesh is reliably connected with the anchor rods through pouring concrete. A supporting seat is arranged between the two connecting columns, a reaction frame is placed on the supporting seat, and the reaction frame is respectively connected and fixed with the two connecting columns.
When the anchoring device is used, the plurality of anchor rods are anchored into the stratum on one side of the starting well, in the process of pipe jacking construction, the shield machine can generate acting force on the reaction frame, the acting force of the reaction frame can act on the two connecting columns, and the anchoring directions of the plurality of anchor rods are the same with the jacking direction of the pipe jacking, so that the connecting columns can be kept stable relative to the starting well under the action of the plurality of anchor rods. The supporting seat is used for supporting the reaction frame, so that the anchor rod is prevented from bearing a deviated acting force, and the anchor rod can be ensured to be stable in the stratum. In this application, the stratum of originating well one side not only can be consolidated to a plurality of stock that the anchor was gone into, can provide the counter-force for the jack-up of push pipe simultaneously, compare in setting up a plurality of support ribs in one side of reaction frame and compare, reduced the required space volume that occupies of reaction frame, not only guaranteed the safety of construction, reduced the input of cost simultaneously.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a shield starting well reaction frame structure according to an embodiment of the present invention;
FIG. 2 is a schematic view of the connection between the reaction frame and the connecting post according to the second embodiment of the present invention;
FIG. 3 is a schematic view of the connection between an I-beam and a connecting column according to a second embodiment of the present invention;
fig. 4 is a schematic connection diagram of a support seat and a reaction frame according to a third embodiment of the present invention;
fig. 5 is a schematic view of the connection between the anchor rod and the reinforcing sleeve according to the fourth embodiment of the present invention.
In the figure: 1. an originating well; 2. connecting columns; 3. an anchor rod; 4. a tension disc; 5. a reaction frame; 6. a reinforcing block; 7. i-shaped steel; 8. a yielding groove; 9. an avoidance groove; 10. a connecting plate; 11. a supporting seat; 12. connecting ribs; 13. a fixing plate; 14. a reinforcing mesh; 15. a connecting seat; 16. and a reinforcing sleeve.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, 3 and 4, the structure of the shield initial well reaction frame provided by the present invention will now be described. The shield starting well reaction frame structure comprises a plurality of anchor rods 3, two connecting columns 2 and a supporting seat 11. The anchor rods 3 are used for anchoring into the ground layer on one side of the starting well 1, and the anchoring directions of the anchor rods 3 are the same as the jacking direction of the jacking pipe. The two connecting columns 2 are used for being installed on two sides of the bottom of the starting well 1, reinforcing meshes 14 are arranged in the connecting columns 2, and the reinforcing meshes 14 are used for being welded and fixed with the anchor rods 3 on the same side; concrete for fixing the mesh reinforcement 14 and the plurality of anchor rods 3 is poured into the connecting column 2. Supporting seat 11 is located between two spliced poles 2, has placed reaction frame 5 on the supporting seat 11, and the both sides of reaction frame 5 are connected fixedly with two spliced poles 2 respectively, and reaction frame 5 is used for providing the counter-force to the jacking of push pipe with the help of a plurality of stock 3.
The shield starting well reaction frame structure provided by the invention has the beneficial effects that: compared with the prior art, the shield starting well reaction frame structure is characterized in that a plurality of anchor rods 3 are anchored into one side of a starting well 1, and the anchor rods 3 are anchored into the stratum. Two connecting columns 2 are arranged on two sides of the bottom of the originating well 1, a reinforcing mesh 14 in each connecting column 2 is welded and fixed with a plurality of anchor rods 3, and the reinforcing mesh 14 is reliably connected with the anchor rods 3 through pouring concrete. A supporting seat 11 is arranged between the two connecting columns 2, a reaction frame 5 is placed on the supporting seat 11, and meanwhile, the reaction frame 5 is respectively connected and fixed with the two connecting columns 2.
When the anchoring device is used, the plurality of anchor rods 3 are anchored into the stratum on one side of the starting well 1, in the process of pipe jacking construction, the shield machine can generate acting force on the reaction frame 5, the acting force of the reaction frame 5 can act on the two connecting columns 2, and the anchoring directions of the anchor rods 3 are the same as the jacking direction of the pipe jacking, so that the connecting columns 2 can be kept stable relative to the starting well 1 under the action of the anchor rods 3. The support seat 11 is used for supporting the reaction frame 5, so that the anchor rod 3 is prevented from bearing a deviating acting force, and the anchor rod can be ensured to be stabilized in the stratum. In this application, the stratum of 1 one side of originating well not only can be consolidated to a plurality of stock 3 that the anchor goes into, can provide the counter-force for the jacking of push pipe simultaneously, compare in setting up a plurality of support ribs in one side of reaction frame 5 and compare, reduced the required space volume that occupies of reaction frame 5, not only guaranteed the safety of construction, reduced the input of cost simultaneously.
As a specific embodiment of the reaction frame structure of the shield starting well provided by the present invention, referring to fig. 2, a plurality of anchor rods 3 are parallel to each other and are transversely arranged at intervals from top to bottom. Firstly, two sides of the starting well 1 are respectively a completed section of the jacked construction and an unfinished section which is not jacked. To facilitate installation of the equipment, the originating well 1 is typically longer and wider than the internal diameter of the completed section of the jacked-in construction. Because the unknown factors of the incomplete section are more, the stratum at the position needs to be reinforced during jacking construction, and particularly for the areas such as gravel and the like which are easy to collapse. In order to prevent collapse due to damage of the side wall of the originating well 1, a plurality of anchor rods 3 are anchored to the non-construction section, and the plurality of anchor rods 3 are arranged laterally and at intervals from top to bottom. A plurality of stock 3 distribute in the both sides of originating well 1 axis to a plurality of stock 3 parallel arrangement each other, thereby improved originating well 1's security, the stock 3 that sets up can reduce the required cost input of consolidating the stratum on every side on original basis, has improved the efficiency of construction.
In order to avoid the anchor rods 3 bearing the acting force deviating from the axis of the anchor rods, the anchor rods 3 are ensured to be arranged in parallel along the axis of the jacking pipe. Simultaneously the stock 3 in this application is flaring stock 3, and the flaring end of stock 3 is located the stratum in, and the top of stock 3 is located well 1 that originates. And the direction of the anchor rods 3 from the flared end to the top end is parallel and opposite to the jacking direction of the jacking pipe, so that the reaction frame 5 can be kept in a relatively stable state under the action of the plurality of anchor rods 3.
Referring to fig. 2, 3 and 4, as an embodiment of the reaction frame structure of the shield launching well provided by the present invention, a connection plate 10 is fixed to the bottom of a mesh reinforcement 14, and the connection plate 10 is used for being installed on the launching well 1. The number of the connecting columns 2 is two, and the two connecting columns 2 are arranged in parallel. The column 2 is a concrete piece that includes a mesh reinforcement 14 inside. The reinforcing mesh 14 is placed in the formwork, concrete is poured into the formwork, and after the concrete is cured and formed, the connecting column 2 is formed. In order to improve the connection strength between the connection column 2 and the anchor rod 3 and ensure the connection stability between the connection column 2 and the anchor rod 3, the end of the anchor rod 3 and the mesh reinforcement 14 can be welded and fixed before the concrete is poured, and then the concrete and the mesh reinforcement 14 are poured together, so that an integrated structure is formed.
Two connecting columns 2 are arranged at the bottom of the originating well 1, so that the connecting columns 2 are connected with the originating well 1 conveniently and simultaneously. The connection plate 10 may be welded and fixed to the bottom of the mesh reinforcement 14. The connecting plate 10, after being welded and fixed with the mesh reinforcement 14 and cast, can form a uniform whole, and the connection strength of the whole connecting column 2 and the originating well 1 is improved. In the actual installation process, a plurality of bolts can be pre-embedded or a plurality of expansion bolts can be fixed in the originating well 1. The connecting plate 10 is connected and fixed with a plurality of pre-buried bolts or with a plurality of expansion bolts.
In order to improve the joint strength of connecting plate 10 and spliced pole 2, at first the connecting plate 10 is located spliced pole 2's bottom, and be fixed with a plurality of splice bars 12 on connecting plate 10, a plurality of splice bars 12 set up on the length direction of spliced pole 2, be provided with fixed plate 13 at spliced pole 2's top, fixed plate 13 is connected fixedly with a plurality of splice bars 12, through connecting plate 10, a plurality of splice bars 12 and fixed plate 13 form stable connection structure, avoided great and take place skew vertical problem when the effort that spliced pole 2 bore, lead to connecting plate 10 and spliced pole 2 to be connected the problem of inefficacy, and splice bar 12 and welded mesh welded fastening, whole spliced pole 2's intensity has been improved.
As a specific embodiment of the shield starting well reaction frame structure provided by the present invention, please refer to fig. 1 to 5, a reinforcing rib is connected between the tops of the two connecting columns 2, the reinforcing rib is an i-steel 7, and two ends of the i-steel 7 are welded and fixed with two reinforcing mesh 14, respectively. The two connecting columns 2 are parallel to each other and arranged at intervals, in order to improve the connecting strength between the two connecting columns 2 and ensure the stability of the connecting strength relative to the position of the starting well 1, the top ends of the two connecting columns 2 are fixedly connected with the I-shaped steel 7, the connecting strength of the I-shaped steel 7 is high, the I-shaped steel 7 is convenient to obtain and process, and the connecting strength of the I-shaped steel 7 and the two connecting columns 2 is improved. The I-shaped steel 7 and the mesh reinforcement 14 in the connecting column 2 are welded and fixed, and when the mesh reinforcement 14 is poured, the I-shaped steel 7 and the mesh reinforcement are poured together.
Because the effective area for connecting the reinforcing mesh 14 and the I-shaped steel 7 is low, even if the I-shaped steel 7 and the reinforcing mesh are poured together, the problem of unreliable connection still exists because the strength of concrete is low, therefore, a plurality of positioning rods can be fixed on the bottom surface of the I-shaped steel 7 and abut against the outer side of the reinforcing mesh 14, after the pouring molding, the positioning rods and the reinforcing mesh 14 are embedded in the concrete, and the positioning rods are fixed on the I-shaped steel 7, and finally, the overall connection strength is improved.
As a specific embodiment of the shield starting well reaction frame structure provided by the invention, please refer to fig. 1, a tension disc 4 is fixed at the end of a plurality of anchor rods 3 positioned at one side of the starting well 1, and the tension disc 4 is vertically arranged inside a connecting column 2. In order to further improve the connection stability of the plurality of anchor rods 3 and the connecting column 2, the anchor rods 3 and the mesh reinforcement 14 on the connecting column 2 are prevented from slipping off. The end parts of the anchor rods 3 on one side of the starting well 1 are connected with tension discs 4, the tension discs 4 are poured into the connecting column 2 together with the reinforcing mesh 14, and after concrete is cured and molded, the tension discs 4 can be stably fixed in the connecting column 2. Simultaneously owing to set up tension disc 4 for a plurality of stock 3 can act on spliced pole 2 simultaneously, guarantee that a plurality of stock 3 keep equal relatively to spliced pole 2's effort, guaranteed normal operation.
As a specific embodiment of the shield starting well reaction frame structure provided by the invention, please refer to fig. 2 and 4, two side edges of the reaction frame 5 are provided with a plurality of avoidance grooves 9 for avoiding a plurality of anchor rods 3; the top of the reaction frame 5 is provided with a yielding groove 8 for yielding the I-shaped steel 7. Dodge groove 9 and set up in the both sides of reaction frame 5 for install reaction frame 5 after connecting stock 3, the groove of stepping down 8 is set up at reaction frame 5 top, is used for improving the level of integrating of device.
As a specific embodiment of the shield launching well counterforce frame structure provided by the invention, referring to fig. 1 and 5, a plurality of reinforcing blocks 6 are arranged on the side surface of the connecting column 2, and the plurality of reinforcing blocks 6 are used for abutting against the side wall of the launching well 1. In order to avoid the problem that the connecting column 2 cannot be stably supported only by the plurality of anchor rods 3, a plurality of reinforcing blocks 6 are arranged on one side surface, away from the plurality of anchor rods 3, of the connecting column 2, and the reinforcing blocks 6 can be prefabricated components, rigid metal blocks or prefabricated concrete blocks. The reinforcing block 6 can be cast together with the connecting column 2. One side of each reinforcing block 6 is abutted against the inner wall of the starting well 1, the other side of each reinforcing block is fixed on the side of the connecting column 2, and the plurality of reinforcing blocks 6 are arranged, so that the acting force of the connecting column 2 in the jacking direction of the jacking pipe is improved, and the service life of the connecting column 2 is guaranteed.
Referring to fig. 1 and 5, as a specific embodiment of the reaction frame structure of the shield starting well provided by the invention, two reinforcing blocks 6 extend towards each other, and a connecting column 2 and the reinforcing blocks 6 are matched to clamp the reaction frame 5. In order to stably clamp the reaction frame 5 and enable the reaction frame 5 to stably bear the acting force of the shield tunneling machine during operation, firstly, the reinforcing blocks 6 are arranged between the connecting column 2 and the side wall of the originating well 1, and two opposite reinforcing blocks 6 extend towards each other. The boss 6 extends to the outside of spliced pole 2 to make boss 6 be close to the side of stock 3 and spliced pole 2 and be close to boss 6 and form the joint groove, reaction frame 5 and the cooperation of joint groove joint. Through setting up boss 6 for reaction frame 5 not only bears the effort of spliced pole 2, can bear the effort of boss 6 simultaneously, also be used for supporting stable reaction frame 5 with spliced pole 2 jointly for boss 6, guaranteed the reliability of connecting, avoided stock 3 to be destroyed.
As a specific embodiment of the reaction frame structure of the shield starting well provided by the present invention, please refer to fig. 4, a fastening rod is connected between the connecting column 2 and the reaction frame 5, and the fastening rod penetrates through the connecting column 2 and the reaction frame 5 in sequence. In this application, in order to avoid the inefficacy that reaction frame 5 and spliced pole 2 and boss 6 are connected, all link up on reaction frame 5 and spliced pole 2 and seted up the through-hole, wear to establish the anchorage bar through in two through-holes to avoid the separation from of reaction frame 5 and spliced pole 2, guaranteed the security.
As a specific embodiment of the shield launching well reaction frame structure provided by the present invention, please refer to fig. 5, a reinforcing sleeve 16 is sleeved on the anchor rod 3 at the outer circumferential surface of the launching well 1, one end of the reinforcing sleeve 16 is used for being fixed on the side wall of the launching well 1, and the other end is used for being welded and fixed with the reinforcing mesh 14. Because 3 diameters of stock are less, although the quantity of the stock 3 that sets up in this application is a plurality of, nevertheless because stock 3 is the standard component, the increase of 3 diameters of stock, the degree of difficulty that 3 anchors of increase stock that can be very big go into has proposed higher requirement to drilling machine etc. simultaneously. For this purpose, the anchor rod 3 at the starting well can be fitted with a reinforcing sleeve 16. One end of the reinforcing sleeve 16 can be fixedly connected with the connecting column 2, and the other end can be fixedly connected with the side wall of the starting well opposite to the connecting column 2. The end part of the reinforcing sleeve 16 far away from the connecting column 2 is connected with a connecting seat 15, and the connecting seat 15 is welded and fixed at the end part of the reinforcing sleeve 16 and is respectively connected on the side wall of the originating well 1 through bolts. Due to the reinforcing sleeve 16, the acting force of the connecting column 2 on the anchor rod 3 can be shared, so that the connecting column 2 is supported and stabilized by the reinforcing sleeve 16 and the anchor rod 3 together. In this application, when being provided with reinforcement sleeve 16, the stability of improvement spliced pole 2 that can be very big has reduced the size of the well 1 required excavation of starting, has reduced engineering cost, has improved the efficiency of construction.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. Shield constructs well reaction frame structure of starting, its characterized in that includes:
the anchor rods are used for anchoring into the stratum on one side of the starting well, and the anchoring directions of the anchor rods are the same as the jacking direction of the jacking pipe;
the two connecting columns are used for being installed on two sides of the bottom of the starting well, reinforcing meshes are arranged in the connecting columns, and the reinforcing meshes are used for being welded and fixed with the anchor rods on the same side; concrete for fixing the reinforcing mesh and the anchor rods is poured into the connecting column;
the supporting seat is located two between the spliced pole, placed the reaction frame on the supporting seat, the both sides of reaction frame respectively with two the spliced pole is connected fixedly, the reaction frame is used for providing the counter-force to the jacking of push pipe with the help of a plurality of stock.
2. The shield originating well reaction frame structure of claim 1, wherein the plurality of anchor rods are parallel to each other and are laterally spaced from top to bottom.
3. The shield launching well reaction frame structure of claim 1, wherein a connection plate is fixed to the bottom of the mesh reinforcement, and the connection plate is used for being installed on the launching well.
4. The shield starting well reaction frame structure as claimed in claim 1, wherein a reinforcing rib is connected between the tops of the two connecting columns, the reinforcing rib is an i-shaped steel, and two ends of the i-shaped steel are respectively welded and fixed with the two reinforcing mesh.
5. The shield starting well reaction frame structure of claim 1, wherein tension discs are fixed to the ends of the plurality of anchor rods positioned at one side of the starting well, and the tension discs are vertically arranged inside the connecting column.
6. The shield starting well reaction frame structure as claimed in claim 4, wherein a plurality of avoiding grooves for avoiding a plurality of anchor rods are formed on two side edges of the reaction frame; the top of the reaction frame is provided with a yielding groove for yielding the I-shaped steel.
7. The shield starter well reaction frame structure of claim 1 wherein the connecting column is provided with a plurality of reinforcing blocks on its side for abutting against the sidewall of the starter well.
8. The shield starting well reaction frame structure of claim 7, wherein two of the reinforcing blocks extend toward each other, and the connecting column and the reinforcing blocks cooperate to clamp the reaction frame.
9. The shield originating well reaction frame structure of claim 1, wherein a fastening rod is connected between the connecting column and the reaction frame, and the fastening rod is sequentially disposed through the connecting column and the reaction frame.
10. The shield launching well reaction frame structure of claim 1, wherein the anchor rod is sleeved with a reinforcing sleeve on the outer circumferential surface of the launching well, one end of the reinforcing sleeve is used for being fixed on the side wall of the launching well, and the other end of the reinforcing sleeve is used for being welded and fixed with the reinforcing mesh.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010888171.8A CN112081596A (en) | 2020-08-28 | 2020-08-28 | Reaction frame structure of shield starting well |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010888171.8A CN112081596A (en) | 2020-08-28 | 2020-08-28 | Reaction frame structure of shield starting well |
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| CN112081596A true CN112081596A (en) | 2020-12-15 |
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| CN202010888171.8A Pending CN112081596A (en) | 2020-08-28 | 2020-08-28 | Reaction frame structure of shield starting well |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114396283A (en) * | 2022-02-15 | 2022-04-26 | 海南大学 | Construction method of assembled pipe-jacking working well |
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2020
- 2020-08-28 CN CN202010888171.8A patent/CN112081596A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114396283A (en) * | 2022-02-15 | 2022-04-26 | 海南大学 | Construction method of assembled pipe-jacking working well |
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