CN114837137B

CN114837137B - Hydraulic construction method for concrete gate pier sliding mode

Info

Publication number: CN114837137B
Application number: CN202210424182.XA
Authority: CN
Inventors: 杨丹涛; 谢小晨; 李小峰; 吴莉; 李宜田
Original assignee: Sinohydro Corp Engineering Bureau 15 Co Ltd
Current assignee: Sinohydro Corp Engineering Bureau 15 Co Ltd
Priority date: 2022-04-21
Filing date: 2022-04-21
Publication date: 2023-06-20
Anticipated expiration: 2042-04-21
Also published as: CN114837137A

Abstract

A concrete gate pier sliding mode hydraulic construction method comprises the following steps: s1, pouring a part of gate piers, and mounting an assembly platform on the gate piers; s2, installing a ring beam 1; s3, installing a beam support 3, an overhead beam 2 and a lifting frame 6; s4, installing a protection device 9; s5, installing a rain and sun shelter 10; s6, installing an up-down ladder and a horizontal and vertical measuring instrument; s7, installing hydraulic control equipment 5 and a through hydraulic jack 7; s8, installing the climbing poles 12, checking the verticality of the climbing poles, starting to slide, and staggering the joints of each pair of the through hydraulic jacks 7 corresponding to the corresponding climbing poles 12; s9, after the water pipe is slipped to a designated position, installing an auxiliary platform 8 and additionally installing a maintenance water pipe 11; s10, correcting deviation; after the sliding mode is adopted, the bracket is not needed any more, and only the upper and lower climbing ladders are required to be additionally arranged at the door slot part so as to meet the passing of constructors, thereby reducing the occupation and consumption of turnover materials.

Description

Hydraulic construction method for concrete gate pier sliding mode

Technical Field

The invention belongs to the technical field of hydraulic engineering construction equipment or devices, and particularly relates to a hydraulic construction method for a concrete gate pier sliding mode.

Background

The hydraulic engineering is characterized in that a water draining building is a very common hydraulic facility, a gate pier is an important hydraulic structure, hydraulic engineering gate pier concrete pouring is generally constructed by adopting a mode of combining standard templates and special-shaped templates, but for a river bed type dam, a general overflow dam section occupies a wider range of a dam body structure, the number of gate piers is large, the river bed type dam adopts staged diversion, the requirement on diversion and interception construction period is strict, the construction speed is low, and the construction progress is influenced.

Because of adopting the concatenation template, there is the seam between the template, need correct the position of every template when the school mould, the template still needs consolidate firmly, and inside adopts the pull rod to fix, avoids leading to the template to remove because of vibrating, influences concrete appearance quality.

The support structure generally adopts the mode of setting up the support, needs to set up the support all around the gate pier for place construction material, concreting, turnover template, maintenance, constructor upper and lower gate pier etc. the support is risen along with the promotion of gate pier height, occupies a large amount of materials, if a plurality of gate pies are under construction simultaneously, is more huge to the occupation of turnover material, great to construction cost influence.

Disclosure of Invention

The technical problem to be solved by the invention is to overcome the defects, and provide the hydraulic construction method for the concrete gate pier sliding mode, which has the advantages of high mechanization degree, simplicity in operation, cost saving, construction progress acceleration and reasonable resource allocation.

The technical scheme adopted for solving the technical problems is as follows: a concrete gate pier sliding mode hydraulic construction method comprises the following steps:

s1, pouring a part of gate piers, and after the gate pier concrete reaches a preset strength, installing an assembly platform on the gate piers, and checking the horizontality and verticality of the gate piers;

s2, installing a ring beam 1: firstly, sectionally assembling a ring beam, a template and a platform steel plate, then hoisting each section on the platform for combination, marking the positions of each part on the ring beam, fixing a lifting frame with a ring beam upright post at a set position, and adopting a disassembly-free template at a door slot part;

s3, installing a beam support, an overhead beam and a lifting frame;

s4, installing a protection device: the edges of the operating platform and the suspended scaffold are provided with protective railings, the height of the protective railings is not less than 120cm, the distance between the crosspieces is not more than 35cm, the bottom of the protective railings is provided with a baffle with the height of not less than 30cm and is sealed tightly, and the outer sides of the protective railings are sealed by suspending safety nets;

s5, installing a rain and sun shelter: the rain and sun shielding shed is divided into two sets, the upstream side and the downstream side of the gate pier are respectively acted, the shed on one side is divided into two large and small shed, the small shed can be placed on the inner side of the greenhouse, and the measures of limiting, braking, falling prevention and the like are provided;

s6, installing an up-down ladder and a horizontal and vertical measuring instrument;

s7, installing hydraulic control equipment and a penetrating hydraulic jack, and carrying out no-load test and pressure test, wherein the penetrating hydraulic jack and an oil pipe are required to be subjected to test grouping before installation;

s8, mounting climbing rods, checking the verticality of the climbing rods, starting to slide, and staggering the joints of each pair of through hydraulic jacks corresponding to the corresponding climbing rods;

s9, after the water pipe is slipped to a designated position, an auxiliary platform is installed, and a maintenance water pipe is additionally installed;

s10, correcting: and (3) measuring and checking the axis, the size, the shape, the position and the elevation of the building every 1-3 m, recording, and rectifying the deviation of the device according to the measuring and lofting result.

The ring beam is arranged on the outer side surface of a gate pier, the ring beam 1 surrounds the gate pier to form a closed whole, a platform steel plate is arranged at the top of the ring beam, a plurality of groups of beam supports are symmetrically arranged on the upper part of the ring beam in terms of the width direction, elevated beams are arranged on each group of beam supports, templates are arranged on the inner side wall of the ring beam, a plurality of groups of lifting frames are arranged on the upper part of the ring beam at intervals, a penetrating type hydraulic jack is arranged on the lifting frames, one end of a climbing rod is buried in poured concrete, the other end of the climbing rod penetrates through a through hole of the penetrating type hydraulic jack, and a hydraulic control console is arranged on the elevated beams and is communicated with the penetrating type hydraulic jack.

The top of the lifting frame is provided with a sliding rail, and the rain and sun shelter is arranged on the sliding rail.

The auxiliary platform and the maintenance water pipe are arranged at the lower part of the ring beam.

The protection device is arranged on the outer side of the top of the ring beam.

A personal ladder stand is arranged on one side of the gate pier.

The lifting frame is of an inverted L-shaped structure, a reinforcing rib is arranged between a long arm and a short arm of the L-shaped structure, a through hole is formed in the short arm, the through hole corresponds to a through hole of a through type hydraulic jack, and a climbing rod penetrates through the through hole.

According to the invention, the hydraulic device is adopted for lifting, and the concrete mixing proportion is adjusted according to the resource allocation and design requirements, so that the proper concrete setting time is selected, the sliding lifting rate is adjusted, and the construction progress is ensured to be rapid and stable on the premise of ensuring the quality. And after construction is completed, the device is directly transferred to another gate pier, and the whole sliding-mode main body is not required to be disassembled in a turnover way. According to the gate pier body type structure, the die plate is welded into a whole and is rigidly connected with the device ring beam, the reinforcing density of the joint and the thickness of the die plate meet the deformation requirement, the circular curve is smooth, the inner side of the die plate is polished smoothly, and the appearance quality of concrete is ensured. After the device adopts the sliding mode, no support is needed, only the upper and lower climbing ladders are required to be additionally arranged at the door slot positions, so that the passing of constructors is met, and the occupation and consumption of turnover materials are reduced.

Drawings

Fig. 1 is a process flow diagram of the present invention.

Fig. 2 is a schematic structural view of the present invention.

Fig. 3 is a sectional view along the overhead girder 2.

Fig. 4 is a cross-sectional view at the non-overhead girder 2.

Fig. 5 is a schematic view of the structure of the lifting frame 6.

Fig. 6 is a top view of fig. 5.

In the figure, 1, a ring beam, 2, an overhead beam, 3, a beam bracket, 4, a template, 5, a hydraulic control console, 6, a lifting frame, 7, a penetrating hydraulic jack, the building comprises an auxiliary platform, a protecting device, a rain and sun shelter, a maintenance water pipe, a climbing pole and a platform steel plate.

Detailed Description

The present invention will be described in further detail with reference to the drawings and examples, but the present invention is not limited to these examples.

Example 1

In fig. 1, the hydraulic construction method of the concrete gate pier sliding mode comprises the following steps:

s1, pouring a part of gate pier, and after the gate pier concrete reaches a certain strength, installing an assembly platform on the gate pier to check the horizontality and verticality of the gate pier.

S2, installing the ring beam 1, firstly assembling the ring beam 1, the template 4 and the platform steel plate 13 in a segmented mode, then hoisting each segment on the platform for combination, marking the positions of each part on the ring beam 1, fixing the lifting frame 6 and the upright post of the ring beam 1 at the set positions, and adopting the disassembly-free template at the door slot position. The arrangement of the segments upon disassembly should be considered upon assembly.

S3, installing the beam bracket 3 and the overhead beam 2. Meanwhile, the overhead beam 2 divides the device into four parts, so that the device is convenient to detach and hoist.

S4, installing a protection device 9. The edges of the operating platform and the suspended scaffold should be provided with protective rails, the height of the protective rails should not be less than 120cm, the distance between the rails should not be more than 35cm, the bottom should be provided with a baffle with the height not less than 30cm, and the protective rails should be closed and compact. The outer side of the protective railing is sealed by hanging a safety net.

S5, installing the rain and sun shelter 10. The rain-proof and sun-proof shed is divided into two sets, the upstream side and the downstream side of the gate pier are respectively acted, the shed on one side is divided into two large and small, the small shed can be placed on the inner side of the greenhouse, and the measures of limiting, braking, falling prevention and the like are provided.

S6, installing an up-down ladder, a horizontal and vertical measuring instrument and the like.

And S7, installing the hydraulic control equipment 5 and the through hydraulic jack 7, and performing no-load test and pressure test. The pilot hydraulic jack 7 and the tubing must be grouped for testing prior to installation. Distribution devices are arranged on the site and the operation platform of the slip form construction site respectively.

S8, installing the climbing pole 12, checking the verticality of the climbing pole, and starting to slide and lift. The joints of each pair of the through hydraulic jacks 7 corresponding to the corresponding climbing rods 12 are staggered. The first sliding-up process needs to pay attention to the operation of a hydraulic system, concrete solidification and appearance quality.

When in construction, enough personnel are required to be equipped, the personnel in each post are reasonably distributed, the good operation of the mixing system is ensured, and the casting continuous operation is ensured; timely adjusting the initial setting time or the lifting speed of the concrete according to weather conditions to optimize the mixing ratio; the steel bars of the operation platform are placed symmetrically as much as possible, and die body deflection is reduced as much as possible; when spreading, the concrete should be spread from two sides to the middle and should be vibrated in a horizontal bin in time; the cast concrete is smeared in time, the template is cleaned in time, the technical level of constructors is improved, the appearance quality is ensured, and the template is lifted to be cleaned after the sliding can be stopped if necessary.

S9, after the water pipe is lifted to a certain position in a sliding way, the auxiliary platform 8 is installed, and the maintenance water pipe 11 is additionally installed. The auxiliary platform 8 is high to meet the requirement of personnel on vertical construction, is convenient for plastering the concrete surface, repairing local defects of the concrete, installing embedded parts, treating the second-stage concrete surface of the gate slot, and timely sprinkling and curing the concrete surface.

S10, correcting the deviation, namely measuring and checking the axis, the size, the shape, the position and the elevation of the building every 1-3 m of sliding rise, recording, and correcting the deviation of the device according to the measuring and lofting result.

Further, in fig. 2 to 6, the ring beam 1 is disposed outside the gate pier, the ring beam 1 surrounds the gate pier to form a closed whole, the whole device is a main body, the height is determined according to the concrete setting time and the sliding time, the width meets the construction operation space, the position of the overhead beam 2 needs to be widened, and the top of the ring beam 1 is provided with a platform steel plate 13. The upper part of the ring beam 1 is symmetrically provided with a plurality of groups of beam supports 3 in terms of the width direction, the beam supports 3 are structures for connecting the overhead beam 2 and the ring beam 1, and are welded with the overhead beam 2 and the ring beam 1 respectively for improving the height of the overhead beam 2, facilitating construction in a cabin, and the beam supports 3 in the embodiment are positioned at four parts of a gate pier. And each group of beam supports 3 is fixedly welded with an overhead beam 2 for oppositely pulling the ring beams 1 at two sides, so that the stability of the ring beams 1 is improved. The template 4 is arranged on the inner side wall of the ring beam 1, the straight line section of the template 4 is welded with the ring beam 1, the outer side of the steel plate at the arc position is reinforced into a rib by angle steel, and then the rib is connected with the ring beam 1. The thickness of the steel plate is determined according to lateral pressure, vibration, sliding and other factors of concrete, in order to facilitate sliding lifting and demoulding, the template 4 is designed into a cone shape, namely, the upper opening of the template 4 is smaller than the design size in the vertical direction, the lower opening is larger than the design size, the gradient of a cone slope is strictly controlled, and the phenomenon of local unevenness in the horizontal direction after the concrete is ejected from the mould is avoided.

A plurality of groups of lifting frames 6 are arranged at intervals on the upper portion of the ring beam 1, the lifting frames 6 of the embodiment are of an inverted L-shaped structure, reinforcing ribs are arranged between long arms and short arms of the L-shaped structure, through holes are formed in the short arms, the through holes correspond to through center holes of the through center type hydraulic jack 7, and the climbing rods 12 penetrate through the through center type lifting frames. The lifting frame 6 is provided with a through hydraulic jack 7 on a short arm, the lifting frame 6 is used as a base of the through hydraulic jack 7, the load of the whole device is transmitted to the through hydraulic jack 7, the number of the required through hydraulic jacks 7 is calculated according to the total load of the device and the bearing capacity of the climbing rod 12, the required through hydraulic jacks are uniformly and symmetrically distributed around the ring beam 1, the climbing rod 12 and the lifting frame 6 are connected, and the sliding load of the whole device is transmitted to the climbing rod 12. One end of the climbing pole 12 is buried in the poured concrete according to a set position and serves as a slip form supporting pole, the other end of the climbing pole penetrates through a through hole of the penetrating hydraulic jack 7, the hydraulic control console 5 is installed on the middle overhead beam 2 and is communicated with the penetrating hydraulic jack 7, and all the penetrating hydraulic jacks 7 are synchronously and stably controlled to slide along the climbing pole 12, so that the ring beam 1 and a structure arranged on the ring beam are driven to slide upwards.

Further, the sliding rail is installed at the top of the lifting frame 6, the rain-proof sun-proof canopy 10 is arranged on the sliding rail, the auxiliary platform 8 and the maintenance water pipe 11 are installed at the lower part of the ring beam 1, the bottom of the auxiliary platform 8 is reinforced by steel plates, the side face is provided with a protective railing and a protective net, the outer side of the top of the ring beam 1 is provided with a protective device 9, the protective device 9 is a protective railing, a skirting board, a protective net and the like meeting safety requirements, one side of the gate pier is provided with a personal cat ladder, and the design is convenient to fix, adopts assembly type, and is convenient to install and detach. According to the construction condition, the measuring devices are arranged, the measuring instruments are symmetrically arranged, and comparison is convenient. The method mainly comprises the steps of measuring fixed points of a template 4 through a total station, judging the sliding-up state, and then slowly adjusting the position of a device through adjusting the pressure of a penetrating hydraulic jack 7 so as to achieve the design position.

Claims

1. The hydraulic construction method of the concrete gate pier sliding mode is characterized by comprising the following steps of:

s2, installing a ring beam (1): firstly, sectionally assembling a ring beam (1), a template (4) and a platform steel plate (13), then hoisting each section on the platform for combination, marking the positions of each part on the ring beam (1), fixing a lifting frame (6) with an upright post of the ring beam (1) at a set position, and adopting a dismantling-free template at the door slot position;

s3, installing a beam support (3), an overhead beam (2) and a lifting frame (6);

s4, installing a protection device (9): the edges of the operating platform and the suspended scaffold are provided with protective railings, the height of the protective railings is not less than 120cm, the distance between the crosspieces is not more than 35cm, the bottom of the protective railings is provided with a baffle with the height of not less than 30cm and is sealed tightly, and the outer sides of the protective railings are sealed by suspending safety nets;

s5, installing a rain and sun shelter (10): the rain and sun shielding shed (10) is divided into two sets, the two sets respectively act on the upstream side and the downstream side of the gate pier, the shed on one side is divided into one large shed and two small sheds, the small sheds are arranged on the inner side of the greenhouse, and limiting, braking and anti-falling measures are arranged;

s7, installing a hydraulic control console (5) and a penetrating hydraulic jack (7), and carrying out no-load test and pressure test, wherein before installation, the penetrating hydraulic jack (7) and an oil pipe are required to be subjected to test grouping;

s8, installing climbing rods (12) and checking the verticality of the climbing rods, starting to slide, wherein joints of each pair of through hydraulic jacks (7) corresponding to the corresponding climbing rods (12) are staggered;

s9, after the water pipe is slipped to a designated position, an auxiliary platform (8) is installed, and a maintenance water pipe (11) is additionally installed;

2. The hydraulic construction method of the concrete gate pier sliding mode according to claim 1, wherein the hydraulic construction method comprises the following steps: the ring beam (1) set up in the gate pier lateral surface, ring beam (1) encircles the gate pier and forms confined whole, ring beam (1) top is provided with platform steel sheet (13), ring beam (1) upper portion is provided with a plurality of group's roof beam supports (3) about width direction symmetry, be provided with overhead girder (2) on every group roof beam support (3), be provided with template (4) on ring beam (1) inside wall, ring beam (1) upper portion interval sets up a plurality of groups hoisting frame (6), wear type hydraulic jack (7) and install on hoisting frame (6), the one end of pole climbing (12) buries in the concreting, the other end passes the through-center hole of wear type hydraulic jack (7), hydraulic control platform (5) set up on overhead girder (2) and are linked together with wear type hydraulic jack (7).

3. The hydraulic construction method of the concrete gate pier sliding mode according to claim 2, wherein the hydraulic construction method comprises the following steps: the top of the lifting frame (6) is provided with a sliding rail, and the rain and sun shelter (10) is arranged on the sliding rail.

4. The hydraulic construction method of the concrete gate pier sliding mode according to claim 2, wherein the hydraulic construction method comprises the following steps: the auxiliary platform (8) and the maintenance water pipe (11) are arranged at the lower part of the ring beam (1).

5. The hydraulic construction method of the concrete gate pier sliding mode according to claim 2, wherein the hydraulic construction method comprises the following steps: the protection device (9) is arranged on the outer side of the top of the ring beam (1).

6. The hydraulic construction method of the concrete gate pier sliding mode according to claim 1, wherein the hydraulic construction method comprises the following steps: one side of the gate pier is provided with a personal ladder stand.

7. The hydraulic construction method of the concrete gate pier sliding mode according to claim 2, wherein the hydraulic construction method comprises the following steps: the lifting frame (6) is of an inverted L-shaped structure, a reinforcing rib is arranged between a long arm and a short arm of the L-shaped structure, a through hole is formed in the short arm, the through hole corresponds to a through hole of the through hydraulic jack (7), and the climbing rod (12) penetrates through the through hole.