CN212250037U

CN212250037U - Counterforce device for shield starting

Info

Publication number: CN212250037U
Application number: CN202020620534.5U
Authority: CN
Inventors: 刘中欣; 张永; 刘钢立; 孟锁锁; 吕和祥; 狄楠; 白夜飞; 张宏宇; 李森; 潘恒宇
Original assignee: Hebei Yaheng Engineering Technology Co ltd; Urban Rail Transit Engineering Co Ltd of China Railway 15th Bureau Group Co Ltd
Current assignee: Hebei Yaheng Engineering Technology Co ltd; Urban Rail Transit Engineering Co Ltd of China Railway 15th Bureau Group Co Ltd
Priority date: 2020-04-25
Filing date: 2020-04-25
Publication date: 2020-12-29
Anticipated expiration: 2030-04-25

Abstract

The utility model discloses a counterforce device for shield constructs and originates, including two stands (1) and two crossbeam (2), stand (1) includes end connection head (3), it is equipped with a plurality of concatenation stands (4) to connect between end connection head (3), crossbeam (2) comprise a plurality of concatenation crossbeams (7), the connection is equipped with oblique connecting rod (8) on stand (1), the other end and crossbeam (2) of oblique connecting rod (8) are connected, all connect on end connection head (3) and crossbeam (2) that are located stand (1) upper portion and be equipped with support (9), all connect on end connection head (3) and crossbeam (2) that are located stand (1) lower part and be equipped with under bracing (10), connect on concatenation stand (4) and be equipped with bearing diagonal (11) and bearing diagonal (12). Compared with the prior art, the utility model the advantage lies in: simple structure, reasonable in design, the dismouting of being convenient for, extensive applicability.

Description

Counterforce device for shield starting

Technical Field

The utility model relates to a shield constructs construction technical field, specifically indicates a counterforce device that is used for the shield to construct to initiate.

Background

With the development of economy, the development of domestic subway construction is rapid, a subway interval tunnel is constructed by adopting a shield method which is a fully mechanical construction method in underground excavation construction.

The first work to be carried out for constructing the tunnel by adopting the shield method is shield starting construction, at present, a shield starting shaft is usually constructed firstly for the shield starting construction, then a shield machine is hoisted into the starting shaft for the shield starting construction, the shield starting procedure is a key procedure for constructing the tunnel by adopting the shield method, and the quality of the construction technology of the procedure directly influences the axial quality of the built tunnel or pipeline, the environmental protection effect at the opening of a starting section and the success or failure of the engineering construction. The existing shield starting reaction frame is generally designed by adopting a reinforced concrete structure or profile steel welding according to the working well condition, the reaction device is generally large in size and difficult to transport, the shield starting reaction device can only aim at specific engineering, the applicability is poor, and the shield starting reaction device is complex to chisel or dismantle after the shield starting is finished and cannot be reused.

Disclosure of Invention

The to-be-solved technical problem of the utility model is to overcome above technical problem, provide a simple structure, reasonable in design, be convenient for dismouting, extensive applicability's a counter-force device for shield structure is originated.

In order to solve the technical problem, the utility model provides a technical scheme does: a counter-force device for shield starting comprises two stand columns and two cross beams, wherein the stand columns comprise end connection heads, a plurality of splicing stand columns are connected and arranged between the end connection heads, the end connection heads and the splicing stand columns are connected with locking nuts through fastening bolts, the cross beams are composed of a plurality of splicing cross beams, two adjacent splicing cross beams are connected with the locking nuts through fastening bolts, inclined connecting rods are connected and arranged on the stand columns, the other ends of the inclined connecting rods are connected with the cross beams, upper supports are connected and arranged on the end connection heads and the cross beams positioned on the upper portions of the stand columns, the other ends of the upper supports are installed in a preset installation well, lower supports are connected and arranged on the end connection heads and the cross beams positioned on the lower portions of the stand columns, the other ends of the lower supports are installed in the preset installation well, a first inclined support and, the other ends of the first inclined supports and the second inclined supports are installed in a preset installation well.

As the improvement, end connection head one end is connected and is equipped with connection flange dish one, concatenation stand both ends are all connected and are equipped with connection flange dish two, connection flange dish one uses with the cooperation of connection flange dish two.

As an improvement, a plurality of through holes are formed in the first connecting flange plate and the second connecting flange plate.

As an improvement, one side of the end connector is provided with a plurality of threaded holes.

As an improvement, two ends of the splicing cross beam are connected with a third connecting flange, and a plurality of round holes are formed in the third connecting flange.

As an improvement, the number of the inclined connecting rods is four, the inclined connecting rods are respectively arranged between four included angles of a square frame formed by the upright posts and the cross beams, and form four triangular structures with the four included angles.

As an improvement, the inclined connecting rod is connected with the upright post through a bolt, and the inclined connecting rod is connected with the cross beam through a bolt.

After the structure more than adopting, the utility model has the advantages of it is following: the utility model has simple structure and reasonable design, the stand column and the cross beam are spliced, the shield machine starting requirements of different diameters can be met through the free combination of the stand columns and the cross beams with different sizes and lengths, the requirements of the actual size of a station on the installation space of the counterforce frame can also be met, the disassembly and assembly work of the shield counterforce frame can be rapidly completed by adopting the connection mode of the fastening bolt and the locking nut, the working efficiency is improved, the transportation is convenient after the disassembly is completed, the turnover utilization rate of the shield machine starting counterforce device can be improved, the cost is reduced, the contact area between the shield machine and the counterforce device can be increased by the arrangement of the inclined connecting rod, the counterforce device is more uniformly stressed in the working process, the upper support, the lower support, the inclined support I and the inclined support II are matched for use, the integral stability of the counterforce device is increased, thereby the operation risk and the, the construction safety is improved.

Drawings

Fig. 1 is a schematic structural diagram of a reaction device for shield launching according to the present invention.

Fig. 2 is a side view of a reaction device for shield launch of the present invention.

Fig. 3 is a side view of an end connector of a reaction force device for shield launch according to the present invention.

Fig. 4 is a cross-sectional view of a spliced column in a counterforce device for shield launch of the present invention.

Fig. 5 is a cross-sectional view of a spliced cross beam in a reaction force device for shield launch according to the present invention.

As shown in the figure: 1. the device comprises a stand column, 2, a cross beam, 3, an end connector, 4, a splicing stand column, 5, a fastening bolt, 6, a locking nut, 7, a splicing cross beam, 8, an inclined connecting rod, 9, an upper support, 10, a lower support, 11, an inclined support I, 12, an inclined support II, 13, a flange I, 14, a flange II, 15, a through hole, 16, a threaded hole, 17, a flange III, 18, a round hole, 19 and a bolt.

Detailed Description

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "center", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a specific orientation configuration and operation, and therefore, should not be construed as limiting the present invention.

In the description of the present invention, it should be further noted that, unless otherwise explicitly stated or limited, the terms "provided", "mounted", "connected", and the like are to be understood in a broad sense, and for example, they may be fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected through an intermediate medium, or connected to the inside of two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The present invention will be described in further detail with reference to the accompanying drawings.

With reference to the attached figures 1-5, a counterforce device for shield starting comprises two columns 1 and two beams 2, wherein each column 1 comprises an end connector 3, a plurality of splicing columns 4 are connected between the end connectors 3, the end connectors 3 and the splicing columns 4 are connected through fastening bolts 5 and locking nuts 6, each beam 2 comprises a plurality of splicing beams 7, two adjacent splicing beams 7 are connected with the locking nuts 6 through the fastening bolts 5, the columns 1 are connected with inclined connecting rods 8, the other ends of the inclined connecting rods 8 are connected with the beams 2, the end connectors 3 and the beams 2 on the upper parts of the columns 1 are connected with upper supports 9, the other ends of the upper supports 9 are installed in a preset installation well, and the end connectors 3 and the beams 2 on the lower parts of the columns 1 are connected with lower supports 10, the other end of lower support 10 is installed in predetermineeing the installation well, connect on the concatenation stand 4 and be equipped with two 12 of bearing diagonal 11 and bearing diagonal, the other end of two 12 of bearing diagonal 11 and bearing diagonal is all installed in predetermineeing the installation well.

3 one end connections of end connection head are equipped with

flange dish

13, 4 both ends of concatenation stand are all connected and are equipped with flange dish two 14, flange dish 13 uses with the cooperation of flange dish two 14, all be equipped with a plurality of through-holes 15 on flange dish 13 and the flange dish two 14, 3 one side of end connection head is equipped with a plurality of

screw holes

16, 7 both ends connections of concatenation crossbeam are equipped with flange dish three 17, be equipped with a plurality of round holes 18 on the flange dish three 17, the quantity of oblique connecting rod 8 is four, oblique connecting rod 8 is respectively between four contained angles of the square frame that stand 1 and crossbeam 2 formed to form four triangle-shaped structures with four contained angles, be connected through bolt 19 between oblique connecting rod 8 and the stand 1, be connected through bolt 19 between oblique connecting rod 8 and the crossbeam 2.

When the utility model is implemented specifically, the ground for installing the counterforce device is made into a ladder shape, one end of the end connecting piece 3 far away from the connecting flange plate one 13 is installed in the reserved working well, then the connecting flange plate two 14 at one end of the splicing upright post 4 is aligned with the connecting flange plate one 13, the fastening bolt 5 passes through the threaded hole 16 and the through hole 15, a gasket can be arranged between the fastening bolt 5 and the end connecting part 3 or the splicing upright post 4 to ensure that the connection is more compact, then the end connecting head 3 and the splicing upright post 4 are fixed together by the locking nut 6, then the splicing upright post 4 is sequentially connected by the method until the working height of the shield machine is reached, the end connecting head 3 is connected with the same method at the top of the upright post 1, the connecting flange plate three 17 is connected with the end connecting head 3 by the fastening bolt 5 at the position of the threaded hole 16, different splicing cross beams 7 are connected together by fastening bolts 5 and locking nuts 6, and are connected with the upright post 1 at the other end after reaching the using width of the shield machine, so that the two upright posts and the two cross beams 2 form a square frame, the four corners of the upright post 1 and the cross beams 2 are connected with inclined connecting rods 8 by bolts, so that the inclined connecting rods 8 and the four corners of the square frame form a triangular structure, then the square frame is erected in an installation well by using an upper support 9, a lower support 10, an inclined support I11 and an inclined support II 12, shield starting counter force is provided for the shield machine to work, and after shield starting is completed, all parts can be disassembled, so that the shield machine is convenient to reuse and transport, and the cost is saved.

The present invention and the embodiments thereof have been described above, but the description is not limited thereto, and the embodiment shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should understand that they should not be limited to the embodiments described above, and that they can design the similar structure and embodiments without departing from the spirit of the invention.

Claims

1. A counterforce device for shield launching, comprising two columns (1) and two beams (2), characterized in that: the upright post (1) comprises end connectors (3), a plurality of splicing upright posts (4) are connected and arranged between the end connectors (3), the end connectors (3) and the splicing upright posts (4) are connected with locking nuts (6) through fastening bolts (5), the cross beam (2) is composed of a plurality of splicing cross beams (7), two adjacent splicing cross beams (7) are connected with the locking nuts (6) through the fastening bolts (5), the upright post (1) is connected with an inclined connecting rod (8), the other end of the inclined connecting rod (8) is connected with the cross beam (2), the end connectors (3) and the cross beam (2) on the upper part of the upright post (1) are connected with upper supports (9), the other end of each upper support (9) is installed in a preset installation well, and the end connectors (3) and the cross beam (2) on the lower part of the upright post (1) are connected with lower supports (10), the other end of under bracing (10) is installed in predetermineeing the installation well, the connection is equipped with diagonal brace one (11) and diagonal brace two (12) on concatenation stand (4), the other end of diagonal brace one (11) and diagonal brace two (12) is all installed in predetermineeing the installation well.

2. The counterforce apparatus for shield launch according to claim 1, wherein: end connection head (3) one end is connected and is equipped with flange dish one (13), concatenation stand (4) both ends are all connected and are equipped with flange dish two (14), flange dish one (13) and flange dish two (14) cooperation use are connected.

3. A counterforce apparatus for shield launch according to claim 2, characterized in that: and the first connecting flange plate (13) and the second connecting flange plate (14) are provided with a plurality of through holes (15).

4. The counterforce apparatus for shield launch according to claim 1, wherein: and one side of the end connector (3) is provided with a plurality of threaded holes (16).

5. The counterforce apparatus for shield launch according to claim 1, wherein: the splicing cross beam (7) is provided with a third connecting flange (17) at two ends, and the third connecting flange (17) is provided with a plurality of round holes (18).

6. The counterforce apparatus for shield launch according to claim 1, wherein: the number of the inclined connecting rods (8) is four, and the inclined connecting rods (8) are respectively arranged between four included angles of a square frame formed by the upright posts (1) and the cross beams (2) and form four triangular structures with the four included angles.

7. The counterforce apparatus for shield launch according to claim 1, wherein: the inclined connecting rod (8) is connected with the upright post (1) through a bolt (19), and the inclined connecting rod (8) is connected with the cross beam (2) through the bolt (19).