CN217859683U - Auxiliary positioning tool for flexible steel dam construction - Google Patents

Abstract

The utility model belongs to the technical field of hydraulic engineering, in particular to an auxiliary positioning tool for flexible steel dam construction, which comprises a main arm, wherein two ends of the main arm are respectively connected with a threaded rod, and the main arm and the threaded rod form a U-shaped structure; the outer wall of the main arm is connected with an extrusion column I; the threaded rods are respectively sleeved with sleeves in a sliding connection mode, and extrusion columns II are connected among the sleeves; a clamping and positioning space is formed between the extrusion column II and the extrusion column I; the threaded rod is in threaded connection with a locking nut; a plurality of anchoring ribs are welded on the outer wall of the extrusion column II. The auxiliary positioning tool is used for realizing the fixed positioning of the dam body layer positioned on the upper layer and the dam body layer positioned on the lower layer so as to avoid the subsequent dislocation problem and influence on welding; the auxiliary positioning tool is provided with two structural forms, one of which can play a role in auxiliary positioning and fixing and can be detached for recycling; secondly, still play the effect of drawknot anchor, under this kind of condition, need not to dismantle, directly pour in the concrete, whatever kind of structure can all improve construction speed.

Description

Auxiliary positioning tool for flexible steel dam construction

Technical Field

The utility model belongs to the technical field of hydraulic engineering, concretely relates to flexible steel dam construction is with assistance-localization real-time frock.

Background

The technical problems in the construction process of the flexible steel dam, such as the problem of welding and fixing steel plates during dam face construction, the problem of effective connection between a dam body and a concrete base and a concrete dam shoulder and the like, need to be researched and solved, the applicant previously applied patent of the invention with the publication number of CN113481945B discloses a construction method of the flexible steel dam, and when the dam body is welded, one steel plate unit is overlapped and welded on site to form the dam body, which is similar to the construction method of building site wall building. Therefore, the inventor intensively studies and proposes another flexible steel dam construction method, mainly aiming at improving the fixation of the steel plates in the dam body and improving the welding speed.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems in the prior art, the auxiliary positioning tool for the flexible steel dam construction is provided, and aims to improve the construction speed of a dam body and reduce the time used in the construction link, so that the whole construction period of the flexible steel dam is finally shortened.

The utility model provides a technical scheme that its technical problem adopted is:

the utility model provides an auxiliary positioning tool for flexible steel dam construction, which comprises a main arm, wherein two ends of the main arm are respectively connected with a threaded rod, and the main arm and the threaded rod form a U-shaped structure; the outer wall of the main arm is connected with an extrusion column I; the threaded rods are respectively sleeved with sleeves in sliding connection, and extrusion columns II are connected between the sleeves; a clamping and positioning space is formed between the extrusion column II and the extrusion column I; the threaded rod is in threaded connection with a locking nut.

Preferably, the outer wall of the main arm is connected with a handrail.

Preferably, the extrusion column I and the extrusion column II are both cylindrical or semi-cylindrical structures.

Preferably, a plurality of anchoring ribs are welded on the outer wall of the extrusion column II.

Preferably, the locking nut is a wing nut or a knurled nut.

Preferably, the main arm is made of twisted steel.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model designs an auxiliary positioning tool which is used for realizing the fixed positioning of the dam body layer positioned on the upper layer and the dam body layer positioned on the lower layer so as to avoid the subsequent dislocation problem and influence on welding; the auxiliary positioning tool is provided with two structural forms and two corresponding using methods, wherein one of the two structural forms only plays a role in auxiliary positioning and fixing and can be detached for recycling; secondly, not only play assistance-localization real-time fixed action, still play the effect of drawknot anchor, under this kind of condition, need not to dismantle, directly pour in the concrete, no matter which kind of structural style, all can bring the optimization construction process, improve construction speed's technological effect.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a structural sectional view of a flexible steel dam in a top view direction.

Fig. 2 isbase:Sub>A sectional view taken alongbase:Sub>A-base:Sub>A in fig. 1.

Fig. 3 isbase:Sub>A cross-sectional view of another embodiment taken along the linebase:Sub>A-base:Sub>A.

Fig. 4 is a front view of the flexible steel dam.

FIG. 5 is a schematic structural diagram of a dam body in the flexible steel dam.

Fig. 6 is a schematic structural diagram of the connection of the upper dam body layer and the lower dam body layer.

Fig. 7 is a plan view of the welding auxiliary tool.

Fig. 8 is a partial sectional view of a holder in the welding auxiliary tool.

Fig. 9 is a perspective view of the connection structure of the bottom plate and the positioning plate.

Fig. 10 is a schematic view of an embodiment of an auxiliary positioning tool structure.

Fig. 11 is a schematic structural view of the auxiliary positioning tool in a use state.

Fig. 12 is a schematic view of a second embodiment of an auxiliary positioning tool structure.

FIG. 13 is a flow chart of a flexible steel dam construction method.

Description of reference numerals:

1, river course; 2, a concrete base; 3, channel steel; 31 a barrier layer; 4, a dam body; 41 a dam body layer; 411 hoisting holes; 412 positioning holes; 5, a dam abutment; 6, anchoring ribs; 7, stretching a rib; 8, a bottom plate; 9, positioning a plate; 10, a support saddle; 11 oscillating bar; 12, telescoping a rod; 13, steel balls; 14 end caps; 15 sliding blocks; 16 springs; 17 a spring seat; 18 a main arm; 19 a threaded rod; 20 a handrail; 21 extruding the column I;22 a sleeve; 23 extruding the column II;24 lock the nut.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

Example one

Referring to fig. 10-11, the embodiment provides an auxiliary positioning tool for flexible steel dam construction, the auxiliary positioning tool includes a main arm 18, two ends of the main arm 18 are respectively connected with a threaded rod 19 that can penetrate through a hoisting hole 411 and a positioning hole 412, and the main arm 18 and the threaded rod 19 form a "U" shaped structure; the outer wall of the main arm 18 is connected with an extrusion column I21; the threaded rods 19 are respectively sleeved with sleeves 22 in a sliding connection mode, the sleeves 22 can be detached from the threaded rods 19, and the sleeves 22 can freely move along the threaded rods 19; an extrusion column II23 is connected between the sleeves 22; a clamping and positioning space is formed between the extrusion column II23 and the extrusion column I21 and is used for positioning and fixing the upper dam body layer 41; the threaded rod 19 is connected with a locking nut 24 in a threaded mode, the extrusion column II23 and the extrusion column I21 can be close to each other by screwing the locking nut 24, and therefore the extrusion column II23 is located on one side of the dam body layer 41, and the extrusion column I21 is located on the other side of the dam body layer 41.

For the convenience of holding, the outer wall of the main arm 18 is connected with a handrail 20.

Extrusion post I21 and extrusion post II23 are cylindric or semicylindrical structure, because the dam body 4 is the arc structure, adopt cylindric or semicylindrical structure to do benefit to more and the interior both sides laminating of dam body layer 41, are convenient for align the dam body layer 41 of upper and lower floor fixedly.

In the embodiment, the locking nut can be a butterfly nut or a knurled nut; the main arm can be processed and manufactured by a twisted steel bar.

As shown in fig. 1-6, the present embodiment provides a method for constructing a flexible steel dam, wherein the flexible steel dam includes a dam body 4, a concrete base 2, a concrete dam shoulder 5, and a channel steel 3, wherein the concrete base 2 is constructed along a width direction of a river 1; channel steel 3 is arranged in the concrete base 2, the channel steel 3 can be straight channel steel 3 or arc channel steel 3, when the straight channel steel 3 is selected, correspondingly, the dam body 4 is also of a flat plate structure, when the arc channel steel 3 is selected, the dam body 4 is also of an arc structure, and thus the concrete base 22 is also constructed into an arc shape; in this embodiment, an arc-shaped dam 4 is constructed as an example for explanation. The bottom of the dam body 4 is connected in a notch of the channel steel 3, and a welding fixing mode is adopted; the dam body 4 comprises a plurality of dam body layers 41 which are mutually stacked and connected from bottom to top, each dam body layer 41 comprises a plurality of steel plate units which are mutually welded, the dam body layers 41 are connected into a whole in a welding mode, and the steel plate units in the dam body 4 can be in a staggered seam welding mode; two sides of the dam body 4 are connected with the concrete dam abutment 5, the concrete dam abutment 5 is constructed at the bank edge, the bottom of the concrete dam abutment 5 is connected with the concrete base 2, and the dam body 4, the concrete base 2 and the concrete dam abutment 5 are connected together to form the flexible steel dam.

In addition, an overflow plate can be welded on the top of the dam body 4; the overflow plate is turned over along the water flow direction, and the top of the dam body 4 is used for passing water, so that the landscape effect of the artificial waterfall is formed, and the landscape design requirement is met. Moreover, the overflow plate can prevent the erosion and corrosion of water flow to the back surface of the dam body 4, and the service life is prolonged.

Structurally, the dam body 4 is made of steel plates, and the characteristics of high strength and good flexibility of the steel plates are fully utilized, so that the dam body 4 has good stretchability; the flexible steel dam has the advantages of simple construction, short construction period, safe and reliable operation and convenient maintenance and management in the construction process; the flexible steel dam is convenient to dismantle and build, the dam body 4 after being dismantled can be reused, the cost is saved, the dam body 4 can be directly cut off when being dismantled, a large amount of dust can not be generated, and the flexible steel dam is environment-friendly and practical.

The utility model discloses in the patent that the people applied for before, the construction to flexible steel dam has given a construction method, and it is when carrying out dam body 4 welding, what adopt is that the scene overlaps the welding with the steel sheet unit of a piece and forms dam body 4, is similar to the construction way of building site barrier wall, but this kind of method is when practical application, and its construction speed is not very fast, remains to improve. Therefore, the utility model discloses a research of taking the lead to the heart, put forward another kind of flexible steel dam construction method, mainly be to how to the fixed of steel sheet in the dam body 4 and improve the improvement that welding speed made.

Referring to fig. 7 to 11 and 13, the method for constructing a flexible steel dam according to the present embodiment includes the following steps:

s1: processing, making and numbering in order

Cutting, blanking and processing according to design requirements to finish the manufacture of the steel plate unit and the channel steel 3; numbering the steel plate units in each dam body layer 41 in sequence; for example, the dam body layers 41 are numbered from bottom to top in the sequence of 1,2,3,4 \8230; the steel plate units in each layer of the dam body layer 41 are arranged according to the specifications of 1-1,1-2,1-3 \8230; 2-1,2-2,2-3, 823060, 8230; 3-1,3-2,3-3 \8230; the sequence of which is numbered and labeled.

S2: construction of the concrete base 2

Cleaning a river channel 1, erecting a template in the river channel 1, pouring concrete to form a concrete base 2, and embedding channel steel 3 in a pouring process; and (4) after the concrete is solidified, removing the template.

It should be noted that, before pouring, a plurality of tie bars 7 are welded at the bottom of the channel steel 3, and the tie bars 7 are poured in the concrete base 2, so that the connection between the channel steel 3 and the concrete base 2 can be ensured to be more stable.

S3: constructing a dam body 4

S31, welding and assembling the steel plate units in each layer of the dam body layer 41 in sequence respectively to form a plurality of dam body layers 41: because the steel plate units in each dam body layer 41 are marked with numbers, the steel plate units are sequentially spliced and welded through the numbers during assembly, so that the construction speed can be increased; respectively forming hoisting holes 411 and positioning holes 412 on the steel plate units at two ends in each dam body layer 41, wherein the hoisting holes 411 are positioned above the positioning holes 412; the hoisting hole 411 mainly plays a role in facilitating hoisting; the positioning holes 412 mainly serve to facilitate positioning and fixing, and the specific use method thereof is described in the following.

S32, placing the first dam body layer 41 positioned at the bottommost part in the notch of the channel steel 3, and welding and fixing the first dam body layer 41 and the channel steel 3;

it should be noted that, when constructing the first dam layer 41 at the bottommost portion, a manual walking manner may be adopted during welding. The dam body 4 is tightly attached to the inner wall behind the notch and welded together; the bottom of the dam body 4 is also welded with the bottom wall of the notch; adopt the form of two-sided welding seam between dam body 4 and the channel-section steel 3, during the benefit that sets up like this, the inner wall that utilizes to be located 3 backs of channel-section steel can play fine spacing fender and prop the effect, can bear the impact of rivers, and impact resistance is more excellent.

In addition, in this step, as a preferable mode, a seepage-proof layer 31 can be further constructed in the notch of the channel steel 3, so that seepage-proof water can be better realized. The barrier layer 31 can be constructed by various barrier treatment methods in the prior art, such as filling concrete mortar in the groove of the channel 3 and coating waterproof paint to form the barrier layer 31, but other methods can also be adopted, and the method is not explained here.

S33, hoisting the second dam body layer 41 through the hoisting holes 411, enabling the second dam body layer 41 to be stacked above the first dam body layer 41, fixing the second dam body layer 41 in an auxiliary mode, and then welding the second dam body layer 41 and the first dam body layer 41; the process is repeated to complete the auxiliary fixing and stacking welding of the remaining dam body 41, forming the dam 4.

Due to the adoption of the stacking mode, after the second layer of dam body layer 41 is hoisted and placed above the first layer of dam body layer 41, due to the thickness of the steel plate unit, the supporting surface is smaller, and during welding, the second layer of dam body layer 41 is preferably subjected to temporary auxiliary fixing so as to avoid the subsequent dislocation problem and influence on welding; the remaining dam body layers 41 also have the problem in lifting and stacking, so except for the first dam body layer 41, each remaining dam body layer 41 needs to be temporarily fixed.

S4: construction of concrete dam abutment 5

And (3) respectively supporting templates at two ends of the dam body 4, pouring concrete to form the concrete dam abutment 5, and connecting the concrete dam abutment 5 with the dam body 4 and the concrete base 2 to form the flexible steel dam.

The utility model discloses a improve flexible steel dam construction method, dam body 4 is by the welding method of original "build wall formula", the adjustment is range upon range of welded mode behind welding dam body layer 41 earlier, construction speed can be improved greatly on the whole, because the welding of each dam body layer 41 is subaerial going on, compare original online eminence construction, it is more convenient, simple to fall to the ground the construction, can improve dam body 4's welding construction speed, reduce used time in this construction link, thereby finally shorten flexible steel dam's whole construction cycle.

The method in the above steps is further elaborated below:

the concrete method for welding and assembling the steel plate units in each layer of dam body layer 41 in the step S31 in sequence respectively comprises the following steps: in order to improve the assembling and welding speed of each steel plate unit, auxiliary welding is carried out by adopting an auxiliary welding tool, and the specific structural form refers to the attached figures 7-9.

The welding auxiliary tool comprises a bottom plate 8, the bottom plate 8 is of an arc-shaped structure, one side of the bottom plate 8 is connected with a positioning plate 9, the positioning plate 9 is also of an arc-shaped structure, and the positioning plate 9 provides a splicing and shaping die for constructing the arc-shaped dam body layer 41; the bottom plate 8 is also connected with a support 10; at least two sets of fasteners are hinged to the support 10 and can rotate around the hinged point.

The fixer comprises a hollow swing rod 11, one end of the swing rod 11 is rotatably connected to the support 10, the other end of the swing rod 11 is slidably connected with a telescopic rod 12, and the swing rod 11 and the telescopic rod 12 form a telescopic structure; the bottom end of the telescopic rod 12 is inserted into the swing rod 11, the sliding block 15 is connected in the swing rod 11 in a sliding mode, the sliding block 15 can slide along the inner wall of the swing rod 11, and the bottom end of the telescopic rod 12 is connected with the sliding block 15; a spring seat 17 is fixedly connected to the inner wall of the swing rod 11, and a spring 16 is connected between the spring seat 17 and the sliding block 15; the top end of the telescopic rod 12 is connected with a steel ball 13. When the steel plate unit welding fixture is used, the spring 16 plays a role in jacking, and jacking fixation of the steel plate unit can be achieved by utilizing the two groups of fixtures, so that subsequent welding is facilitated.

The end of the swing rod 11 is connected with an end cover 14, the telescopic rod 12 freely penetrates through the end cover 14, a hole is formed in the center of the end cover 14, and the telescopic rod 12 penetrates through the hole.

The end cover 14 and the swing rod 11 are detachably arranged so as to mount components inside the swing rod 11, and the specific method may be as follows: the end cover 14 is connected with the swing rod 11 through a screw or the end cover 14 is in threaded connection with the swing rod 11.

The specific operation method of the welding auxiliary tool comprises the following steps:

(1) according to the serial numbers, a first steel plate unit positioned at the head end in the first dam body layer 41 is placed on the bottom plate, the steel plate unit is made to be tightly attached to the surface of the positioning plate 9, and the first group of fixing devices are rotated, so that the steel balls 13 in the first group of fixing devices are supported on the surface of the steel plate unit; a space for clamping the steel plate unit is formed between the steel ball 13 and the positioning plate 9, so that the steel plate unit can stand above the bottom plate 8.

(2) After the first steel plate unit is fixed, the second steel plate units are sequentially placed according to the serial numbers, the second steel plate units are made to be tightly attached to the surface of the positioning plate 9, and meanwhile the second steel plate units are ensured to be tightly adjacent to the first steel plate units; then, rotating the second group of the fixers to enable the steel balls 13 in the second group of the fixers to prop against the surface of the steel plate unit to complete the fixation of the second steel plate unit; then, welding the second steel plate unit and the first steel plate unit together; according to the principle, a third steel plate unit is orderly placed according to the number, the position of the second group of fixers is adjusted in a rotating mode, so that the steel balls 13 in the second group of fixers are propped against the surface of the third steel plate unit, and then the third steel plate unit and the second steel plate unit are welded together; repeating the process, and welding to obtain a first dam body layer 41;

in this step, each steel plate unit in the first dam body layer 41 may be welded and fixed by using a local spot welding method;

(3) taking down the first dam body layer 41 from the welding auxiliary tool, and performing double-sided full welding on all welding seams to obtain a first dam body layer 41 finished product;

(4) the process is repeated to obtain a finished product of the second dam body layer 41, a finished product of the third dam body layer 41 of 823082308230and a finished product of the Nth dam body layer 41 until all the finished products of the dam body layers 41 are obtained by welding.

The utility model designs the auxiliary welding tool, when welding and assembling the individual dam body layer 41, the construction speed can be greatly improved by using the auxiliary welding tool; when the steel plate unit is used for welding auxiliary tools, the splicing speed is ensured, and the condition of wrong splicing is prevented; the auxiliary welding tool adopts a telescopic structure to match with the spring 16 and the steel ball 13, so that positioning and fixing of each steel plate unit can be effectively realized during welding, manual support is not needed, and construction is facilitated; and the position of a fixer in the welding auxiliary tool can be adjusted through rotation, and the fixer is matched with the circular steel ball 13, so that the steel plate unit can be conveniently fixed at any position, and the limitation is small.

The specific method for auxiliary fixing of the dam body layer 41 in the step S33 comprises the following steps: the auxiliary positioning tool is adopted for auxiliary fixing, and the specific structure refers to the description of the auxiliary positioning tool and the accompanying drawings 10 to 11.

The specific operation method of the auxiliary positioning tool comprises the following steps:

(1) after the dam body layer 41 on the upper layer is hoisted to the position above the dam body layer 41 on the lower layer, the main arm 18 is held by a hand, and one of the threaded rods 19 penetrates through the positioning hole 412 of the dam body layer 41 on the upper layer; another threaded rod 19 penetrates through a hoisting hole 411 of the lower dam body layer 41;

(2) sleeving sleeves 22 at two ends of an extrusion column II23 on the threaded rod 19;

(3) and installing and screwing the locking nut 24, so that the extrusion columns II23 and the extrusion columns I21 clamp the upper dam body layer 41 and the lower dam body layer 41, thereby completing the auxiliary fixation between the upper dam body layer 41 and the lower dam body layer 41.

(4) After the auxiliary fixing between the upper dam body layer 41 and the lower dam body layer 41 is completed, the hoisting device is released, and the upper dam body layer 41 and the lower dam body layer 41 are welded and fixed; after the welding and fixing are completed, the auxiliary positioning tool is detached for next use.

(5) The above process is repeated to complete the upward stacking welding of the remaining dam layer 41.

When all the dam bodies 41 are welded together, the dam 4 described in S33 is formed, and the anchoring ribs 6 may be bolted or welded in the lifting holes 411 and/or the positioning holes 412 of the dam 4, so as to improve the tensile strength.

Example two

Referring to fig. 12, the embodiment provides an auxiliary positioning tool for flexible steel dam construction, and other structures are the same as those of the embodiment, except that a plurality of anchoring ribs 6 are welded on the outer wall of an extrusion column II23, and the threaded rod 19 needs to be longer to form a rib planting structure.

In the specific operation method (4) of the auxiliary positioning tool in the first embodiment, after the welding and fixing are completed, the auxiliary positioning tool is detached for the next use; in the embodiment, the auxiliary positioning tool does not need to be disassembled, and the bonding and anchoring effects between the auxiliary positioning tool and the concrete are improved by directly utilizing the threaded rod 19 and the plurality of anchoring ribs 6 on the outer wall of the extrusion column II23; therefore, although a plurality of sets of auxiliary positioning tools are integrally configured, the additional installation of the anchoring ribs 6 is not needed, the step of disassembling the auxiliary positioning tools is omitted, the link is saved, and the construction speed can be greatly improved.

It can be seen that the utility model designs the auxiliary positioning tool, which is used for realizing the fixed positioning of the dam body layer 41 on the upper layer and the dam body layer 41 on the lower layer, so as to avoid the subsequent dislocation problem and influence on welding; the auxiliary positioning tool is provided with two structural forms and two corresponding using methods, wherein one of the two structural forms only plays a role in auxiliary positioning and fixing and can be detached for recycling; secondly, not only play assistance-localization real-time fixed action, still play the effect of drawknot anchor, under this kind of condition, need not to dismantle, directly pour in the concrete, no matter which kind of structural style, all can bring the optimization construction process, improve construction speed's technological effect.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (6)

1. The auxiliary positioning tool for the construction of the flexible steel dam is characterized by comprising a main arm, wherein two ends of the main arm are respectively connected with a threaded rod, and the main arm and the threaded rod form a U-shaped structure; the outer wall of the main arm is connected with an extrusion column I; the threaded rods are respectively sleeved with sleeves in sliding connection, and extrusion columns II are connected between the sleeves; a clamping and positioning space is formed between the extrusion column II and the extrusion column I; and the threaded rod is in threaded connection with a locking nut.

2. The auxiliary positioning tool for the construction of the flexible steel dam as claimed in claim 1, wherein the outer wall of the main arm is connected with a handrail.

3. The auxiliary positioning tool for the construction of the flexible steel dam as claimed in claim 1, wherein the extrusion column I and the extrusion column II are both cylindrical or semi-cylindrical structures.

4. The auxiliary positioning tool for the construction of the flexible steel dam as claimed in claim 1, wherein a plurality of anchoring ribs are welded on the outer wall of the extrusion column II.

5. The auxiliary positioning tool for the construction of the flexible steel dam as claimed in claim 1, wherein the locking nut is a butterfly nut or a knurled nut.

6. The auxiliary positioning tool for the construction of the flexible steel dam as claimed in claim 1, wherein the main arm is a twisted steel.

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