CN210660094U - Quick positioning device for shield steel sleeve - Google Patents
Quick positioning device for shield steel sleeve Download PDFInfo
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- CN210660094U CN210660094U CN201921429700.7U CN201921429700U CN210660094U CN 210660094 U CN210660094 U CN 210660094U CN 201921429700 U CN201921429700 U CN 201921429700U CN 210660094 U CN210660094 U CN 210660094U
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Abstract
The utility model belongs to the technical field of building construction, and relates to a quick positioning device and a quick positioning method for a shield steel sleeve.A bottom plate pre-embedded base member is provided with four groups, reinforcing steel bars are welded at the positions of four corners at the bottom of a third steel plate of each group of bottom plate pre-embedded base member, which are 5cm away from the edge of the steel plate, four corners of the third steel plate are respectively provided with a bolt hole, a bolt sleeve with a built-in nut is reserved respectively, and the bolt hole is matched with the bolt sleeve and an adjusting; the profile steel of the wedge-shaped positioning component is vertically welded in the middle of the second steel plate, the four corners of the second steel plate are respectively provided with an adjustable bolt hole, and the back of the profile steel is additionally welded with the first steel plate; the second steel plate component and the third steel plate are fixedly connected into an integral structure through bolts penetrating through the adjusting bolt holes and the bolt holes; the pre-positioning device fixed on the bottom plate structure is adopted, manual assistance is not needed, the steel sleeve is quickly positioned and installed, the installation efficiency is high, the cost is reduced, the installation risk is reduced, and the personal safety is guaranteed.
Description
The technical field is as follows:
the utility model belongs to the technical field of the construction, a shield constructs quick positioner of steel sleeve relates to, the shield that adopts steel sleeve to originate or receive is tunnelled the engineering, realizes quick, accurate, the safe installation of steel sleeve.
Background art:
the existing shield sleeve base is integrally installed, the central axis of the sleeve is determined in a foundation pit before installation, the sleeve is hoisted through a crawler crane or a gantry crane, the sleeve direction is gradually adjusted through manually translating a steel sleeve through a guy cable or manually, and the center of the sleeve is fixed after being matched with the set central axis. Because steel sleeve base weight reaches fifty more tons, but the installation accuracy requires highly, adopt the hoist to lift by crane during the conventional installation of sleeve, need artifical horizontal migration cooperation location installation, the resistance is great, need more manual work, positioning accuracy is not high, and receive inertial influence in the adjustment process, the difficult control location, often need adjust the location repeatedly many times just can be identical with set central line, installation time is longer, consuming time and taking a lot of manpower, the adjustment degree of difficulty is big, simultaneously because the sleeve is heavier, and be in the state of lifting by crane all the time, the manual installation risk is high. At present, the public use and related reports of the equipment and the method for quickly positioning the shield steel sleeve are not found.
The invention content is as follows:
the utility model discloses an invention aim at overcomes the shortcoming that prior art exists, and the design provides a shield constructs quick positioner of steel sleeve, adopts the prepositioning device of fixing on the floor structure, realizes need not artifical supplementary, and the installation is fixed a position fast to the steel sleeve.
In order to realize the purpose, the utility model discloses a major structure includes first steel sheet, the second steel sheet, shaped steel, the bolt sleeve, the reinforcing bar, the third steel sheet, adjusting bolt hole and bolt hole, wherein first steel sheet, the second steel sheet, shaped steel and adjusting bolt hole constitute wedge positioning member, the bolt sleeve, the reinforcing bar, third steel sheet and bolt hole constitute bottom plate pre-buried base member, bottom plate pre-buried base member is equipped with four groups, the reinforcing bar is all welded at four angles in the third steel sheet bottom of every group bottom plate pre-buried base member apart from 5cm department at the steel sheet edge, the reinforcing bar is L type structure, its length is 50cm, straight hook is 15cm, four angles of third steel sheet are opened respectively has a bolt hole, and reserve the bolt sleeve of a built-in nut respectively, the bolt hole cooperatees with; the profile steel of the wedge-shaped positioning component is vertically welded in the middle of the second steel plate, four corners of the second steel plate are respectively provided with an adjustable bolt hole with the length multiplied by the width multiplied by 22mm multiplied by 50mm, and accurate pre-positioning is realized when the wedge-shaped positioning component is connected and fixed with the base plate fixing base piece; the section steel adopts the following components: 3, the triangular bevel structure is convenient for self-sliding positioning of the shield steel sleeve; welding a first steel plate on the back of the section steel for reinforcement; the second steel plate member positioned in the wedge shape and the third steel plate of the base plate embedded base piece are fixedly connected into an integral structure through the bolt penetrating through the adjusting bolt hole and the bolt hole.
The third steel sheet adopts thickness to be 1.2cm, long X wide steel sheet for 450X 450mm, and shaped steel adopts H350 shaped steel, and the thickness of second steel sheet is 1.2cm, long X wide for 450X 450mm, and the thickness of first steel sheet is 1.2cm, and the reinforcing bar adopts the phi 12 reinforcing bar, and the bolt sleeve adopts M20 bolt sleeve.
The utility model discloses realize that the concrete process of shield structure steel sleeve quick location does:
(1) before the shield steel sleeve is installed, the position of the front end of the wedge-shaped positioning component is accurately marked on the bottom plate fixing base piece according to the distance between two sides of the shield steel sleeve and the central line, so that the wedge-shaped positioning component can be conveniently installed, marking is carried out by adopting ink lines or chalk calipers during marking, and the length of the marking line exceeds the length of the second steel plate by not less than 5 cm;
(2) fixing the wedge-shaped positioning member on the base plate fixing piece by using a bolt to serve as a pre-positioning device of the shield steel sleeve;
(3) the hoisting of shield structure steel sleeve adopts and satisfies the crawler crane or other hoist that hoist and mount required, and the hoisting point is located the shield structure steel sleeve stiffening rib board department that designs the affirmation in advance, and concrete hoist and mount process is:
(a) before the shield steel sleeve base is hoisted and lowered into the well, the axis of the shield steel sleeve is preset on the ground by adopting a crawler crane or other cranes and is basically consistent with the designed axis, so that inertial rotation is prevented;
(b) hoisting a shield steel sleeve base, wherein the rotating speed is not more than 2m/min in the process that a crawler crane or other cranes rotate a swing arm until the shield steel sleeve base is hoisted to a position right above an installation position;
(c) after the shield steel sleeve base is basically stable in the air, slowly hoisting the shield steel sleeve base at a speed of not more than 5 m/min;
(d) and when the distance between the shield steel sleeve base and the set position is 50cm, slowly adjusting to place the shield steel sleeve base in the range of the four groups of fixed wedge-shaped positioning members, and gradually hanging down to realize one-time quick positioning.
The utility model discloses it is fixed with wedge positioning element according to sleeve both sides position accurate positioning when structure bottom plate concrete placement to adopt interim shutoff such as sticky tape sponge with the bolt hole, prevent that concrete placement process grout from going on and stopping up, also can avoid simultaneously that the structure construction is accomplished to other crushed aggregates etc. and fall into in the bolt hole between the sleeve installation earlier stage.
Compared with the prior art, the utility model, adopt to fix the prepositioning device on the bottom plate structure, realize need not artifical supplementary, the installation is fixed a position fast to the steel sleeve, and the installation effectiveness is high, reduces artifical installation cost and crane use cost, also very big reduction the installation risk simultaneously, guaranteed personal safety.
Description of the drawings:
fig. 1 is a schematic diagram of the main structure principle of the present invention.
Fig. 2 is a front view of the wedge-shaped positioning member of the present invention.
Fig. 3 is a top view of the wedge-shaped positioning member of the present invention.
Fig. 4 is a front view of the base member for embedding the base plate of the present invention.
Fig. 5 is a bottom view of the base member embedded in the bottom plate of the present invention.
Fig. 6 is a schematic diagram of the use principle of the quick positioning device for the steel sleeve of the shield, wherein 10 is the steel sleeve of the shield, 11 is the quick positioning device, and 12 is a bottom plate of a concrete structure.
The specific implementation mode is as follows:
the present invention will be further explained by the following embodiments with reference to the accompanying drawings.
Example (b):
the main structure of the shield steel sleeve quick positioning device comprises a first steel plate 1, a second steel plate 2, section steel 3, bolts 4, bolt sleeves 5, reinforcing steel bars 6, a third steel plate 7, adjusting bolt holes 8 and bolt holes 9, wherein the first steel plate 1, the second steel plate 2, the section steel 3 and the adjusting bolt holes 8 form a wedge-shaped positioning member, the bolt sleeves 5, the reinforcing steel bars 6, the third steel plate 7 and the bolt holes 9 form a bottom plate pre-embedded base member, the bottom plate pre-embedded base member is provided with 4 groups, four corners at the bottom of the third steel plate 7 of each group of bottom plate pre-embedded base members are respectively reserved with the bolt sleeves 5 with built-in nuts, and the bolt holes 9 are matched with the bolt sleeves 5; the section steel 3 of the wedge-shaped positioning component is vertically welded in the middle of the second steel plate 2, four corners of the second steel plate 2 are respectively provided with an adjustable bolt hole 8 with the length multiplied by the width multiplied by 22mm multiplied by 50mm, and accurate pre-positioning is realized when the wedge-shaped positioning component is connected and fixed with the base plate fixing base piece; the section steel 3 adopts a formula 1: 3, the triangular bevel structure is convenient for self-sliding positioning of the shield steel sleeve; welding a first steel plate 1 on the back of the section steel 3 for reinforcement; the second steel plate 2 member positioned in a wedge shape and the third steel plate 7 of the base plate embedded base piece are fixedly connected into an integral structure through bolts 4 penetrating through adjusting bolt holes 8 and bolt holes 9.
In this embodiment, the third steel plate 7 is made of steel plate with a thickness of 1.2cm and a length × width of 450 × 450mm, the section steel 3 is made of H350 section steel, the second steel plate 2 is made of steel plate with a thickness of 1.2cm and a length × width of 450 × 450mm, the first steel plate 1 is made of steel plate with a thickness of 1.2cm, the steel bar 6 is made of phi 12 steel bar, and the bolt sleeve 5 is made of M20 bolt sleeve.
The concrete process of realizing the quick positioning of the shield steel sleeve of the embodiment comprises the following steps:
(1) before the shield steel sleeve is installed, the position of the front end of the wedge-shaped positioning component is accurately marked on the bottom plate fixing base piece according to the distance between two sides of the shield steel sleeve and the central line, so that the wedge-shaped positioning component can be conveniently installed, marking is carried out by adopting ink lines or chalk calipers during marking, and the length of the marking line exceeds the length of the second steel plate 7 by not less than 5 cm;
(2) fixing the wedge-shaped positioning member on the base plate fixing piece by using a bolt 4 to serve as a pre-positioning device of the shield steel sleeve;
(3) the hoisting of shield structure steel sleeve adopts and satisfies the crawler crane or other hoist that hoist and mount required, and the hoisting point is located the shield structure steel sleeve stiffening rib board department that designs the affirmation in advance, and concrete hoist and mount process is:
(a) before the shield steel sleeve base is hoisted and lowered into the well, the axis of the shield steel sleeve is preset on the ground by adopting a crawler crane or other cranes and is basically consistent with the designed axis, so that inertial rotation is prevented;
(b) hoisting a shield steel sleeve base, wherein the rotating speed is not more than 2m/min in the process that a crawler crane or other cranes rotate a swing arm until the shield steel sleeve base is hoisted to a position right above an installation position;
(c) after the shield steel sleeve base is basically stable in the air, slowly hoisting the shield steel sleeve base at a speed of not more than 5 m/min;
(d) and when the distance between the shield steel sleeve base and the set position is 50cm, slowly adjusting to place the shield steel sleeve base in the range of the four groups of fixed wedge-shaped positioning members, and gradually hanging down to realize one-time quick positioning.
In the embodiment, a shield region of a subway is taken as an example, a left line and a right line are both initiated by adopting a steel sleeve, wherein a left line does not adopt a pre-positioning device in the prior art, the sleeve base is subjected to aerial inertial rotation in the hoisting and placing process, a plurality of people need to control the swinging and rotation of the sleeve through a cable rope or direct push-pull, when the sleeve base is installed at the bottom, a total station is adopted for whole-course tracking measurement and positioning, and the steel sleeve base is installed and positioned only by repeatedly hoisting and installing due to the fact that the base is heavy, the time for use reaches 24 hours, and 8 workers are used for assistance; after the quick positioning device is adopted on the right wire steel sleeve base, the total time is 1 hour, the accurate positioning of the sleeve is completed, only 2 workers are used for assisting, and the positioning is accurate, so that the technical scheme of the embodiment has obvious economic benefit, the service time of the crawler crane is reduced to 1 hour from 24 hours, the service time of the crawler crane is reduced to 1 day from 8 total 24 working days, and the whole hoisting and mounting process is safe and stable.
Claims (2)
1. A quick positioning device for a shield steel sleeve is characterized in that a main body structure comprises a first steel plate, a second steel plate, section steel, bolts, bolt sleeves, reinforcing steel bars, a third steel plate, adjusting bolt holes and bolt holes, wherein the first steel plate, the second steel plate, the section steel and the adjusting bolt holes form a wedge-shaped positioning component, the bolt sleeves, the reinforcing steel bars, the third steel plate and the bolt holes form a base plate pre-embedding piece, the base plate pre-embedding piece is provided with four groups, the reinforcing steel bars are welded at the positions, 5cm away from the edge of the steel plate, of four corners of the bottom of the third steel plate of each group of base plate pre-embedding piece, the reinforcing steel bars are of an L-shaped structure, the length of the reinforcing steel bars is 50cm, straight hooks are 15cm, the four corners of the third steel plate are respectively; the section steel of the wedge-shaped positioning component is vertically welded in the middle of the second steel plate, and four corners of the second steel plate are respectively provided with an adjustable bolt hole with the length multiplied by the width multiplied by 22mm multiplied by 50 mm; the section steel adopts the following components: 3, a triangular inclined plane structure, wherein a first steel plate is additionally welded on the back surface of the section steel; the second steel plate member positioned in the wedge shape and the third steel plate of the base plate embedded base piece are fixedly connected into an integral structure through the bolt penetrating through the adjusting bolt hole and the bolt hole.
2. The rapid positioning device for the shield steel sleeve according to claim 1, wherein the third steel plate is a steel plate with a thickness of 1.2cm and a length x width of 450 x 450mm, the section steel is H350 section steel, the second steel plate is a steel plate with a thickness of 1.2cm and a length x width of 450 x 450mm, the first steel plate is 1.2cm thick, the steel bar is a phi 12 steel bar, and the bolt sleeve is an M20 bolt sleeve.
Applications Claiming Priority (2)
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CN201821416635 | 2018-08-31 | ||
CN201821416635X | 2018-08-31 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108868791A (en) * | 2018-08-31 | 2018-11-23 | 任晓敏 | A kind of shield steel bushing fast-positioning device and method |
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2019
- 2019-08-30 CN CN201921429700.7U patent/CN210660094U/en active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108868791A (en) * | 2018-08-31 | 2018-11-23 | 任晓敏 | A kind of shield steel bushing fast-positioning device and method |
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