CN119102232A - Quick installation device and method for deep foundation pit steel support - Google Patents
Quick installation device and method for deep foundation pit steel support Download PDFInfo
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- CN119102232A CN119102232A CN202411489639.0A CN202411489639A CN119102232A CN 119102232 A CN119102232 A CN 119102232A CN 202411489639 A CN202411489639 A CN 202411489639A CN 119102232 A CN119102232 A CN 119102232A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
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Abstract
The invention relates to the technical field of deep foundation pit construction, in particular to a rapid installation device and an installation method for a steel support of a deep foundation pit. The steel support installing device and the steel support installing method can achieve rapid construction of the steel support, the steel support is supported by the lifting ropes on the two sides and is driven to move on the steel purlin through the traction motor, the steel support can be driven to move to the position corresponding to the installation position in the longitudinal direction, the driving motors on the two sides are controlled to rotate, the lifting ropes on the two sides are controlled to synchronously lift, the lifting ropes drive the steel support to synchronously lift, the steel support is moved to the installation position, after one steel support is installed, the movable support is reset through the traction motor, the next steel support can be moved again until all the steel supports are installed, and through the arrangement of the bridge supports, the movable supports on the two sides and the driving motor are prevented from tilting towards the middle, and particularly when the steel support is conveyed, the movable support is prevented from being driven to tilt towards the middle due to the weight of the steel support.
Description
Technical Field
The invention relates to the technical field of deep foundation pit construction, in particular to a rapid installation device and an installation method for a steel support of a deep foundation pit.
Background
In the construction process of the existing tunnels, pipe galleries, subways and large underground spaces by adopting an open cut method, in order to prevent the slope collapse of the deep foundation pit, a method of applying prestress to the system of crown beams and steel purlins is adopted to support the deep foundation pit. The construction method has the advantages that the positions of the cranes are required to be continuously adjusted according to the installation positions in the process of installing the steel supports, the steel supports are placed at the corresponding positions one by one, the construction efficiency is seriously reduced, the situation that the cranes cannot stand is limited by the space of a site in the process of hoisting the steel supports, the large-scale mechanical danger is extremely high when the steel supports are used at the side of a deep foundation pit, the side slope of the deep foundation pit is easy to collapse, the collision risk exists between the crown beam at the top of the deep foundation pit and the steel supports in the hoisting process, the steel support body structure is extremely easy to damage, and in order to prevent the steel supports from being damaged in the hoisting process, a plurality of people are required to assist in hoisting, and the construction efficiency is further reduced.
Disclosure of Invention
The invention aims to solve the technical problems of low installation efficiency and high risk coefficient of a steel support of a deep foundation pit.
The present invention is to solve the above-described problems, and provides an installation apparatus and an installation method capable of improving installation efficiency and increasing installation safety.
The technical scheme I is that the quick mounting device for the steel support of the deep foundation pit is applied to the uppermost steel enclosing purlin fixed on the guard piles at two sides of the deep foundation pit, the uppermost steel enclosing purlins at two sides are respectively provided with movable brackets, gap bridge supports are arranged between the movable brackets at two sides, two driving motors are respectively arranged on each movable bracket, steel wire ropes are wound on rotating shafts of the driving motors, winding directions of the two steel wire ropes at the same side are opposite, lifting ropes are connected between free ends of the two steel wire ropes at the same side, the lifting ropes at two sides are used for supporting two ends of the same steel support, traction motors are respectively arranged at two ends of the steel enclosing purlins at two sides, traction ropes are wound on rotating shafts of the traction motors, and front ends of the two traction ropes at the same side are respectively connected with two ends of the movable brackets at the same side.
Preferably, the invention further adopts the technical scheme that:
The movable support comprises a fixing frame and rollers which are rotatably arranged at the bottom of the fixing frame, the width of each roller is smaller than that of the upper surface of the steel purlin, and the rollers roll on the upper surface of the steel purlin. Through the structure, the fixing frame can roll on the steel purlin conveniently.
The distance between the two driving motors on the same side is larger than the diameter of the steel support to be supported. Through the structure, when being convenient for drop the steel support, the steel support does not contact with two driving motors, and can fall onto the lifting rope.
The bridge support comprises two transverse support rods and a plurality of longitudinal support rods, two ends of the two transverse support rods are respectively connected with the movable supports on two sides in a pin joint mode, and the longitudinal support rods are fixed between the two transverse support rods at equal intervals.
The free end of wire rope is provided with the lifting hook, and the both ends of lifting rope are provided with rings, and two wire rope lifting hooks of homonymy are connected with two rings hook-hanging of homonymy lifting rope. Through the structure, the steel wire rope and the lifting rope can be conveniently and quickly disassembled and assembled.
The technical scheme II of the invention is that the quick installation method of the steel support of the deep foundation pit comprises the following steps:
Step one, fixing guard piles on two sides of a deep foundation pit, fixing a plurality of layers of steel purlins on the guard piles, wherein the steel purlins on two sides correspond to each other in horizontal position, the two ends of the steel purlins on the uppermost layer are respectively provided with traction motors, traction ropes are wound on rotating shafts of the traction motors, movable brackets are respectively placed on the steel purlins on the uppermost layer on two sides, two driving motors are respectively installed on each movable bracket, steel wire ropes are wound on each driving motor, the two steel wire ropes on the same side are reversely wound, lifting ropes are connected between the free ends of the two steel wire ropes on the same side, and the free ends of the traction ropes on two ends of the steel purlins on the same side are connected to the two ends of the movable brackets on the same side
Step two, controlling two traction motors at one end of the deep foundation pit to be started, driving a traction rope to wind through the traction motors, and drawing the movable support to one end of the deep foundation pit, which is convenient for operators to lower a steel support;
step three, lifting the first steel support to a position between the moving brackets at two sides, and then lowering the first steel support so that two ends of the first steel support are supported by lifting ropes at two sides;
step four, installing a bridge support between the movable brackets at two sides;
step five, starting two traction motors at the far end of the movable support, pulling the movable support to move on the uppermost steel purlin through a traction rope, driving the first steel support to move until the first steel support moves to a longitudinally corresponding position of the mounting position of the first steel support, and controlling the traction motors to stop;
Step six, controlling the four driving motors at the two sides to be simultaneously started, controlling the rotation directions of the driving motors at the two sides to be opposite, controlling the rotation directions of the driving motors at the same side to be consistent, and driving the first steel support to descend synchronously through the lifting ropes at the two sides until the first steel support moves to the installation position;
step seven, prestressing force is applied to the two ends of the first steel support, so that the two ends of the first steel support are fixed on the steel purlin at the installation position, and then a diagonal cable wire is fixed between the two ends of the steel support and the guard piles above the steel support, and the stability of the two ends of the steel support is increased through the diagonal cable wire;
Step eight, the connection between one steel wire rope and the lifting rope is released, and the driving motors on two sides are controlled to rotate in the direction opposite to the rotation direction of the step five, so that the steel wire rope is driven to be gradually wound on the rotating shaft of the driving motor;
and step nine, removing the bridge supports, and repeating the operations of the step three to the step eight to install the rest steel supports until all the steel supports are installed.
Compared with the prior art, the invention adopting the first technical scheme and the second technical scheme has the beneficial effects that:
The steel support installing device and the steel support installing method can achieve rapid construction of the steel support, the steel support is supported by the lifting ropes on the two sides and is driven to move on the steel purlin through the traction motor, the steel support can be driven to move to the position corresponding to the installation position in the longitudinal direction, the driving motors on the two sides are controlled to rotate, the lifting ropes on the two sides are controlled to synchronously lift, the lifting ropes drive the steel support to synchronously lift, the steel support is moved to the installation position, after one steel support is installed, the movable support is reset through the traction motor, the next steel support can be moved again until all the steel supports are installed, and through the arrangement of the bridge supports, the movable supports on the two sides and the driving motor are prevented from tilting towards the middle, and particularly when the steel support is conveyed, the movable support is prevented from being driven to tilt towards the middle due to the weight of the steel support.
Drawings
FIG. 1 is a schematic view of a mobile bracket according to a first embodiment of the present invention;
FIG. 2 is a schematic view of a step flow chart of a second embodiment of the present invention;
FIG. 3 is a schematic diagram of a fifth step of the second embodiment of the present invention;
FIG. 4 is a partial side view of a mobile carriage of a second embodiment of the present invention moving over a steel purlin;
fig. 5 is a partial side view of a steel brace of a second embodiment of the invention secured to a steel purlin.
In the figure, 10 parts of crown beam, 11 parts of driving motor, 12 parts of lifting hook, 13 parts of lifting rope, 14 parts of first handle, 15 parts of second handle, 16 parts of bridge buckle, 17 parts of diagonal steel wire rope, 2 parts of fixing frame, 3 parts of roller, 41 parts of transverse supporting rod, 42 parts of longitudinal supporting rod, 5 parts of traction motor, 6 parts of fender post, 7 parts of three corner supports, 8 parts of steel fender purlin and 9 parts of steel support.
Detailed Description
The invention is further described below in connection with the following examples which are provided for the purpose of better understanding of the present invention and are, therefore, not to be construed as limiting the scope of the invention.
Referring to fig. 1-5, an embodiment of the invention discloses a quick installation device for steel supports 9 of a deep foundation pit, which is applied to an uppermost steel enclosing purlin 8 fixed on two sides of the deep foundation pit, wherein movable brackets are respectively arranged on the uppermost steel enclosing purlins 8 on two sides, the movable brackets move on the steel enclosing purlins 8, bridge supports are arranged between the movable brackets on two sides, two driving motors 11 are respectively arranged on each movable bracket, the axial directions of rotating shafts of the two driving motors 11 are perpendicular to the length direction of the steel enclosing purlins 8, steel ropes are wound on the rotating shafts of the driving motors 11, the winding directions of the two steel ropes on the same side are opposite, lifting ropes 13 are connected between free ends of the two steel ropes on the same side, the lifting ropes 13 on two sides are used for supporting two ends of the same steel support 9, traction motors 5 are respectively arranged at two ends of the steel enclosing purlins 8 on two sides, traction ropes are wound on the rotating shafts of each traction motor 5, and the front ends of the two traction ropes on the same side are respectively connected to two ends of the movable brackets on the same side.
In this embodiment, the movable support includes mount 2 and mount 2 bottom rotation gyro wheel 3 that set up, and the both ends of mount 2 all are provided with the first handle 14 and the second handle 15 of U-shaped, are provided with the pull ring that is used for connecting the haulage rope on first handle 14 and the second handle 15, and the width of gyro wheel 3 is less than the width that the purlin 8 upper surface was enclosed to the steel for gyro wheel 3 rolls at the purlin 8 upper surface is enclosed to the steel. Through the structure, the fixing frame 2 can roll on the steel purlin 8 conveniently.
In this embodiment, the distance between the two drive motors 11 on the same side is greater than the diameter of the steel support 9 to be braced. Through the above structure, when the steel support 9 is conveniently lowered, the steel support 9 is not contacted with the two driving motors 11, and can fall onto the lifting rope 13.
In this embodiment, the two ends of the inner side of the fixing frame 2 are both fixed with the bridge-passing buckle 16, the bridge-passing support comprises two transverse support rods 41 and a plurality of longitudinal support rods 42, two ends of the two transverse support rods 41 are respectively pinned on the bridge-passing buckle 16 of the two side moving support, and the plurality of longitudinal support rods 42 are equidistantly fixed between the two transverse support rods 41 so as to increase the bending resistance of the two transverse support rods 41.
In this embodiment, the free end of the steel wire rope is provided with a lifting hook 12, two ends of the lifting rope 13 are provided with lifting rings, and two steel wire rope lifting hooks 12 on the same side are hooked and connected with two lifting rings of the lifting rope 13 on the same side. Through the structure, the steel wire rope and the lifting rope 13 can be conveniently and quickly assembled and disassembled.
Referring to fig. 1-5, the second embodiment of the invention discloses a rapid installation method of a steel support 9 of a deep foundation pit, which comprises the following steps:
Firstly, fixedly inserting two rows of fender posts 6 on two sides of a deep foundation pit, fixing crown beams 10 on the tops of the fender posts 6, fixing multiple layers of steel enclosing purlins 8 on the inner sides of the fender posts 6 on the two sides, fixing a plurality of three-angle supports 7 below the steel enclosing purlins 8, supporting the steel enclosing purlins 8 through the three-angle supports 7, enabling the heights of all layers of steel enclosing purlins 8 on the two sides to correspond to each other, respectively arranging traction motors 5 on two ends of the uppermost steel enclosing purlins 8 on the two sides, winding traction ropes on the rotating shafts of the traction motors 5 in the axial direction of the steel enclosing purlins 8, respectively arranging movable brackets on the uppermost steel enclosing purlins 8 on the two sides, respectively installing two driving motors 11 on each movable bracket, winding steel ropes on each driving motor 11, reversely winding two steel ropes on the same side, connecting lifting ropes 13 between the free ends of the two steel ropes on the same side, and connecting the free ends of the traction ropes on the two ends of the steel enclosing purlins 8 on the same side with first handles 14 and second handles 15 on the two ends of the movable brackets on the same side;
Step two, controlling two traction motors 5 at one end of the deep foundation pit to be started, driving a traction rope to wind through the traction motors 5, and pulling a movable support to one end of the deep foundation pit, which is convenient for operators to lower a steel support 9, by pulling the movable support;
Lifting the first steel support 9, moving the first steel support 9 to the position above the moving brackets on the two sides, slowly lowering the first steel support, and supporting the two ends of the first steel support 9 through the lifting ropes 13 on the two sides;
Step four, installing bridge supports between the movable brackets at two sides, and fixing two ends of the bridge supports with the movable brackets in a pin joint manner;
Step five, starting two traction motors 5 at the distal end of the movable support, and pulling the movable support to move on the uppermost steel purlin 8 through a traction rope, so as to drive the first steel support 9 to move until the first steel support 9 moves to a longitudinally corresponding position of the installation position of the first steel support 9, and controlling the traction motors 5 to stop;
Step six, controlling the four driving motors 11 on the two sides to be simultaneously started, controlling the driving motors 11 on the two sides to reversely rotate, controlling the rotation directions of the two driving motors 11 on the same side to be consistent, driving the lifting ropes 13 on the two sides to synchronously descend, and driving the first steel support 9 to descend until the first steel support 9 moves to the installation position;
Step seven, prestressing force is applied to the two ends of the first steel support 9, so that the two ends of the first steel support 9 are fixed on the steel purlin 8 at the installation position, and then a diagonal cable wire 17 is fixed between the two ends of the steel support 9 and the fender post 6 above the steel support 9, and the stability of the two ends of the steel support 9 is increased through the diagonal cable wire 17;
Step eight, the connection of one steel wire rope and the lifting rope 13 is released, and the driving motors 11 on two sides are controlled to rotate in the direction opposite to the rotation direction of the step five, so that the steel wire rope is driven to be gradually wound on the rotating shaft of the driving motor 11;
and step nine, removing the bridge supports, and repeating the operations from the step three to the step eight to install the rest steel supports 9 until all the steel supports 9 are installed.
The steel support 9 quick construction device and the steel support 9 quick construction method can achieve quick construction of the steel support 9 by means of the hanging ropes 13 on the two sides, the steel support 9 is driven to move on the steel purlin 8 through the traction motor 5, the steel support 9 can be driven to move to the position corresponding to the longitudinal position of the installation position, the hanging ropes 13 on the two sides are controlled to synchronously lift through controlling rotation of the driving motors 11 on the two sides, the hanging ropes 13 on the two sides drive the steel support 9 to synchronously lift, the steel support 9 is moved to the installation position, after one steel support 9 is installed, the traction motor 5 resets the movable support, the next steel support 9 can be moved again until all the steel supports 9 are installed, and through setting of the bridge passing support, the movable support on the two sides and the driving motor 11 are prevented from tilting towards the middle, and particularly when the steel support 9 is conveyed, the movable support is prevented from being driven to tilt towards the middle due to the weight of the steel support 9.
The foregoing description of the preferred embodiments of the invention is not intended to limit the scope of the claims, but rather to cover all equivalent modifications within the scope of the present invention as defined by the appended claims.
Claims (6)
1. The quick mounting device for the steel support of the deep foundation pit is applied to the uppermost layer of steel purlin fixed on fender piles on two sides of the deep foundation pit, and is characterized in that movable brackets are respectively arranged on the steel purlins on the uppermost layer of the two sides, bridge supports are arranged between the movable brackets on the two sides, two driving motors are respectively arranged on each movable bracket, steel ropes are wound on rotating shafts of the driving motors, winding directions of the two steel ropes on the same side are opposite, lifting ropes are connected between free ends of the two steel ropes on the same side, the lifting ropes on the two sides are used for supporting two ends of the same steel support, traction motors are respectively arranged at two ends of the steel purlins on the two sides, and traction ropes are wound on rotating shafts of the traction motors, and front ends of the two traction ropes on the same side are respectively connected to two ends of the movable brackets on the same side.
2. The rapid installation device for the steel support of the deep foundation pit of claim 1, wherein the movable support comprises a fixed frame and rollers rotatably arranged at the bottom of the fixed frame, the width of each roller is smaller than that of the upper surface of the steel purlin, and each roller rolls on the upper surface of the steel purlin.
3. The rapid installation device for steel supports of deep foundation pit according to claim 1, wherein the distance between the two driving motors on the same side is larger than the diameter of the steel support to be supported.
4. The rapid installation device for the steel supports of the deep foundation pit of claim 1, wherein the bridge support comprises two transverse support rods and a plurality of longitudinal support rods, two ends of the two transverse support rods are respectively connected with the movable supports on two sides in a pin joint mode, and the plurality of longitudinal support rods are fixed between the two transverse support rods at equal intervals.
5. The rapid installation device for the deep foundation pit steel support, as set forth in claim 1, wherein the free end of the steel wire rope is provided with a lifting hook, two ends of the lifting rope are provided with lifting rings, and two steel wire rope lifting hooks on the same side are hooked and connected with two lifting rings of the lifting rope on the same side.
6. The quick installation method of the steel support of the deep foundation pit is characterized by comprising the following steps of:
Fixing guard piles on two sides of a deep foundation pit, fixing multiple layers of steel purlins on the guard piles, enabling the horizontal positions of the steel purlins on two sides to correspond, respectively arranging traction motors at two ends of the steel purlins on the uppermost layer, winding traction ropes on rotating shafts of the traction motors, respectively placing movable supports on the steel purlins on the uppermost layer on two sides, respectively installing two driving motors on each movable support, respectively winding steel wire ropes on each driving motor, reversely winding the two steel wire ropes on the same side, connecting lifting ropes between free ends of the two steel wire ropes on the same side, and connecting the free ends of the traction ropes at two ends of the steel purlins on the same side to two ends of the movable supports on the same side;
Step two, controlling two traction motors at one end of the deep foundation pit to be started, driving a traction rope to wind through the traction motors, and drawing the movable support to one end of the deep foundation pit, which is convenient for operators to lower a steel support;
step three, lifting the first steel support to a position between the moving brackets at two sides, and then lowering the first steel support so that two ends of the first steel support are supported by lifting ropes at two sides;
step four, installing a bridge support between the movable brackets at two sides;
step five, starting two traction motors at the far end of the movable support, pulling the movable support to move on the uppermost steel purlin through a traction rope, driving the first steel support to move until the first steel support moves to a longitudinally corresponding position of the mounting position of the first steel support, and controlling the traction motors to stop;
Step six, controlling the four driving motors at the two sides to be simultaneously started, controlling the rotation directions of the driving motors at the two sides to be opposite, controlling the rotation directions of the driving motors at the same side to be consistent, and driving the first steel support to descend synchronously through the lifting ropes at the two sides until the first steel support moves to the installation position;
step seven, applying prestress on two ends of a first steel support, enabling two ends of the first steel support to be fixed on a steel enclosing purlin at an installation position, and then fixing a cable-stayed steel wire rope between the two ends of the steel support and a enclosing pile above the steel support;
Step eight, the connection between one steel wire rope and the lifting rope is released, and the driving motors on two sides are controlled to rotate in the direction opposite to the rotation direction of the step five, so that the steel wire rope is driven to be gradually wound on the rotating shaft of the driving motor;
and step nine, removing the bridge supports, and repeating the operations of the step three to the step eight to install the rest steel supports until all the steel supports are installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411489639.0A CN119102232B (en) | 2024-10-24 | 2024-10-24 | Rapid installation device and installation method for steel supports in deep foundation pits |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411489639.0A CN119102232B (en) | 2024-10-24 | 2024-10-24 | Rapid installation device and installation method for steel supports in deep foundation pits |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN119102232A true CN119102232A (en) | 2024-12-10 |
| CN119102232B CN119102232B (en) | 2026-01-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202411489639.0A Active CN119102232B (en) | 2024-10-24 | 2024-10-24 | Rapid installation device and installation method for steel supports in deep foundation pits |
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| CN (1) | CN119102232B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN206616846U (en) * | 2017-03-30 | 2017-11-07 | 福建省东霖建设工程有限公司 | Exterior wall finishing engineering movable Scaffold |
| CN113526332A (en) * | 2021-08-18 | 2021-10-22 | 裴志健 | Steel pipe hoist device for construction |
| CN216471656U (en) * | 2021-12-28 | 2022-05-10 | 青岛诚建钢结构工程有限公司 | High-stability power transmission line iron tower lifting device |
| JP7126739B1 (en) * | 2021-11-02 | 2022-08-29 | 浙大城市学院 | Sliding lifting device for prefabricated diaphragm walls |
| CN217896511U (en) * | 2022-04-20 | 2022-11-25 | 中铁四局集团第二工程有限公司 | Foundation ditch steel shotcrete cleaning device that falls into earth |
| CN218860185U (en) * | 2022-11-24 | 2023-04-14 | 中国土木工程集团有限公司 | Deep basal pit concrete support overhead hoist |
-
2024
- 2024-10-24 CN CN202411489639.0A patent/CN119102232B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206616846U (en) * | 2017-03-30 | 2017-11-07 | 福建省东霖建设工程有限公司 | Exterior wall finishing engineering movable Scaffold |
| CN113526332A (en) * | 2021-08-18 | 2021-10-22 | 裴志健 | Steel pipe hoist device for construction |
| JP7126739B1 (en) * | 2021-11-02 | 2022-08-29 | 浙大城市学院 | Sliding lifting device for prefabricated diaphragm walls |
| CN216471656U (en) * | 2021-12-28 | 2022-05-10 | 青岛诚建钢结构工程有限公司 | High-stability power transmission line iron tower lifting device |
| CN217896511U (en) * | 2022-04-20 | 2022-11-25 | 中铁四局集团第二工程有限公司 | Foundation ditch steel shotcrete cleaning device that falls into earth |
| CN218860185U (en) * | 2022-11-24 | 2023-04-14 | 中国土木工程集团有限公司 | Deep basal pit concrete support overhead hoist |
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| Publication number | Publication date |
|---|---|
| CN119102232B (en) | 2026-01-13 |
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