CN112211421A - A kind of artificial digging pile hole inner protection device - Google Patents
A kind of artificial digging pile hole inner protection device Download PDFInfo
- Publication number
- CN112211421A CN112211421A CN202011138673.5A CN202011138673A CN112211421A CN 112211421 A CN112211421 A CN 112211421A CN 202011138673 A CN202011138673 A CN 202011138673A CN 112211421 A CN112211421 A CN 112211421A
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- hole
- steel plate
- grid
- digging pile
- artificial
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/32—Safety or protective measures for persons during the construction of buildings
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C9/00—Special pavings; Pavings for special parts of roads or airfields
- E01C9/08—Temporary pavings
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/32—Safety or protective measures for persons during the construction of buildings
- E04G21/3204—Safety or protective measures for persons during the construction of buildings against falling down
- E04G21/3252—Protections, e.g. cover, caps, against impaling on starter reinforcement bars
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
本发明公开了一种人工挖孔桩孔内防护装置，包括有固定设置在人工挖孔桩孔底上方的盖板，盖板中部设置有1个缺口，缺口处设置有格栅状防护钢板，格栅状防护钢板的背端与盖板转动连接，格栅状防护钢板的底面支撑在盖板上，盖板上方的人工挖孔桩孔壁上固定有滑轮，滑轮上绕制有绳索，绳索一端与格栅状防护钢板的头端连接，另一端穿过盖板上的通孔后伸入至其下方的人工挖孔桩内。该防护装置可以避免物体掉落至孔底后，造成孔底作业人员伤亡，确保人工挖孔桩施工时孔底作业人员安全。
The invention discloses an artificial hole-digging pile hole inner protection device, which comprises a cover plate fixedly arranged above the bottom of the artificial hole-digging pile hole, a gap is arranged in the middle of the cover plate, and a grid-shaped protective steel plate is arranged at the gap. The back end of the grid-shaped protective steel plate is rotatably connected with the cover plate, the bottom surface of the grid-shaped protective steel plate is supported on the cover plate, a pulley is fixed on the wall of the artificial hole-digging pile above the cover plate, and ropes are wound on the pulley. One end is connected with the head end of the grid-shaped protective steel plate, and the other end extends into the artificial hole-digging pile below it after passing through the through hole on the cover plate. The protection device can prevent objects from falling to the bottom of the hole, causing casualties to the bottom operators, and ensure the safety of the bottom operators during the construction of the artificial digging piles.
Description
Technical Field
The invention relates to a safety protection device, in particular to a protection device in a hole of a manual hole digging pile.
Background
The manual hole digging pile is a construction process of a reinforced concrete pile adopting manual soil digging and cast-in-place, and is used for filling, cohesive soil, silt, sandy soil and weathered rock strata with the diameter of more than 800 mm and small water-free or water seepage quantity. The single pile bearing capacity of the manual hole digging pile is high, the pile forming quality is good, and the application is wide. The manual hole digging pile has unique advantages for the construction of the large-diameter pile foundation with narrow construction site and incapability of operating the pile machine.
Because the manual hole digging pile is operated in a limited space, when a hole is dug or a bottom is expanded, the construction is improper, so that the soil layer on the wall of the hole is collapsed, and the casualties of the operators under the hole are caused. In order to avoid the phenomenon, the cast-in-place concrete retaining wall is synchronously constructed in the manual hole digging process, and the cast-in-place concrete retaining wall is of an inverted frustum-shaped structure; or in the process of digging the hole, the reinforced concrete protective wall is sprayed for protection. Hole wall soil layer collapse can be effectively avoided through the two modes.
Although the existing protection measures can effectively avoid the collapse of the soil layer of the hole wall, because the manual hole digging pile is generally deep and has a narrow internal space, the accidents of casualties of hole bottom operation personnel are frequently generated because the ground objects fall into the hole, the soil body in the bucket falls, the bucket snap ring fails or the bucket steel wire rope is broken to cause the bucket to fall to the bottom of the hole, and therefore how to better realize the protection in the hole of the manual hole digging pile is a difficult problem in the industry.
Disclosure of Invention
The invention aims to provide a hole inner protection device for a manual hole digging pile, which can prevent the casualty of hole bottom operation personnel caused by the falling of objects to the bottom of a hole and ensure the safety of the hole bottom operation personnel during the construction of the manual hole digging pile.
The technical scheme of the invention is as follows: the utility model provides an downthehole protector of artifical hole digging pile, including the fixed apron that sets up in artifical hole digging pile hole bottom top, the apron middle part is provided with 1 breach, breach department is provided with grid form protection steel sheet, the back end and the apron of grid form protection steel sheet rotate to be connected, the bottom surface of grid form protection steel sheet supports on the apron, be fixed with the pulley on the artifical hole digging pile pore wall directly over grid form protection steel sheet back end rear portion, the system of coiling has the rope on the pulley, rope one end is connected with the head end of grid form protection steel sheet, the other end stretches into in the artifical hole digging pile of its below after passing the through-hole on the apron.
Among the downthehole protector of artificial hole digging pile, the apron is provided with the connection protection steel sheet that 2 symmetries and adjacent artificial hole digging pile pore wall set up between 2 crescent protection steel sheets including the crescent protection steel sheet that 2 symmetries and adjacent artificial hole digging pile pore wall set up, 2 crescent protection steel sheets and 2 connect and form 1 square frame shape breach between the protection steel sheet.
In the above-mentioned downthehole protector of manual hole digging pile, the back end and one of them crescent protection steel sheet of grid form protection steel sheet rotate to be connected, and 2 the square frame shape breach department of connecting the protection steel sheet is the step structure, and grid form protection steel sheet left and right both ends bottom surface supports on the step face of connecting protection steel sheet step structure.
In the manual hole digging pile hole inner protection device, a buffer rubber layer is arranged on the step surface of the connecting protection steel plate.
In the above-mentioned downthehole protector of manual hole digging pile, the grid form protection steel sheet sets up quantity and is 2, and the symmetry sets up, and every grid form protection steel sheet head end is equipped with the hoist cable and passes the breach.
In the above-mentioned manual hole digging pile hole internal protection device, a limiting rod extending into the hole is fixed on the manual hole digging pile hole wall above the back end of the grid-shaped protection steel plate, and the length of the limiting rod extending into the hole is greater than the distance from the manual hole digging pile hole wall to the grid-shaped protection steel plate rotation connecting end.
In the manual hole digging pile hole protecting device, the limiting rods are arranged in multiple numbers, and a pulley is arranged on the side surface of one limiting rod.
In the above in-hole protection device for the manual hole digging pile, when the manual hole digging pile adopts a cast-in-place concrete retaining wall, the crescent protection steel plate and the connecting protection steel plate are fixed on the top surface of the cast-in-place concrete retaining wall above the hole bottom through bolts; when the manual hole digging pile adopts the sprayed concrete dado, the crescent protection steel plate and the connection protection steel plate are fixed on the pre-buried fixed steel plate through bolts, the sprayed concrete dado is provided with a plurality of layers of pre-buried fixed steel plates, and each layer of pre-buried fixed steel plate is composed of a plurality of pre-buried fixed steel plates distributed in an annular array.
The invention has the beneficial effects that: compared with the prior art, the cover plate is arranged above the hole bottom, the grid-shaped protection steel plate is arranged in the middle of the cover plate, the grid-shaped protection steel plate is connected with the cover plate in a rotating mode and is connected with the pulley through the rope, when workers carry out hole digging operation at the hole bottom, the cover plate and the grid-shaped protection steel plate shield the manual hole digging pile, ground objects can be prevented from falling into the hole bottom, and meanwhile casualties of hole bottom operation personnel caused by falling of the bucket to the hole bottom due to failure of a bucket clamping ring or breakage of a bucket steel wire rope can be avoided. After the bucket is filled with materials, the ropes are pulled to drive the grid-shaped protective steel plates to be opened, the bucket can conveniently pass through, and after the ropes are loosened, the grid-shaped protective steel plates are automatically covered on the cover plate under the action of gravity, so that the protective effect is achieved. Along with the continuous downwardly extending of hole bottom, can dismantle the back with this protector and install at certain high department apart from the hole bottom, improve the guard effect of device. In the whole structure, the cover plate is fixed on the cast-in-place concrete retaining wall or the embedded fixed steel plate through the bolts, and the installation is more convenient. The whole protection device is simple in structure, quick to install, convenient to use and high in practicability.
Drawings
FIG. 1 is a schematic top view of the present invention;
FIG. 2 is a schematic view of the vertical structure of the present invention installed on a cast-in-place concrete retaining wall;
FIG. 3 is a schematic structural view of the latticed armor panel of FIG. 2 when opened;
FIG. 4 is a schematic view of the vertical structure of the present invention when mounted on a hole wall;
FIG. 5 is a schematic structural view of the latticed armor panel of FIG. 4 shown in an open position;
FIG. 6 is a schematic view of the structure of FIG. 1 with only the cover plate installed;
FIG. 7 is a schematic view of an installation structure of a pre-buried fixed steel plate;
fig. 8 is a schematic view of a top view of the structure of the pulley mounted on the stop lever.
Reference numerals: 1-manual hole digging pile, 2-grid-shaped protective steel plate, 3-pulley, 4-rope, 5-crescent-shaped protective steel plate, 6-connecting protective steel plate, 7-buffer rubber layer, 8-sling passing notch, 9-limiting rod, 10-cast-in-place concrete retaining wall, 11-bolt and 12-embedded fixed steel plate.
Detailed Description
The invention is further illustrated by the following figures and examples, which are not to be construed as limiting the invention.
The embodiment of the invention comprises the following steps: the utility model provides an downthehole protector of manual hole digging pile, as shown in the attached figure 1-8, including the fixed apron that sets up in 1 hole bottom top in manual hole digging pile, this apron can set up with the pore wall of manual hole digging pile 1 is perpendicular, the apron middle part is provided with 1 breach, breach department is provided with grid form protection steel sheet 2, the back end of grid form protection steel sheet 2 passes through hinge and apron activity hinge joint, the bottom surface of grid form protection steel sheet 2 supports on the apron surface, be fixed with pulley 3 on 1 pore wall of manual hole digging pile above the apron, this pulley 3 is located the pore wall directly behind the back end rear portion of grid form protection steel sheet 2, 1 rope 4 has been twined on the pulley 3, the one end of rope 4 is connected with the head end of grid form protection steel sheet 2, the other end passes the through-hole on the apron and then stretches into in 1 manual hole digging pile below it.
The guard is installed inside the manual bored pile 1 as the manual bored pile 1 is dug down. In the use process, a worker stands at the bottom of a hole to perform excavation operation, the grid-shaped protective steel plate 2 covers the cover plate, and a steel wire rope connected with the bucket penetrates through a gap between the grid-shaped protective steel plate 2 and the cover plate, so that the bucket is placed to the bottom of the hole. When an object falls off from the ground, the object can fall on the cover plate or the grid-shaped protective steel plate 2, so that the object is prevented from falling to the bottom of the hole to injure workers at the bottom of the hole. The material that the workman excavated is piled up in the bucket, and the hoisting device who lies in ground after piling up drives the bucket through wire rope and shifts up, and the bucket shifts up in-process and contacts with grid form protection steel sheet 2, upwards promotes grid form protection steel sheet 2 and makes it rotate around the apron, and grid form protection steel sheet 2 opens, and the bucket goes upward from the breach. Or the worker at the bottom of the hole pulls the rope 4 during the upward movement of the bucket, so that the latticed armor plate 2 is opened. The ropes 4 are loosened after the bucket passes through the grid-shaped protective steel plate 2, so that the grid-shaped protective steel plate 2 is automatically covered on the cover plate under the action of gravity. In the ascending process of the bucket, if the bucket snap ring fails or the bucket steel wire rope is broken to cause the dropping of the bucket, the bucket only drops to the cover plate or the grid-shaped protective steel plate 2, so that the protection effect is realized on workers at the bottom of the hole. Because the bottom surface of the grid-shaped protection steel plate 2 is supported on the surface of the cover plate, even if an object falls to the grid-shaped protection steel plate 2, the grid-shaped protection steel plate 2 cannot rotate downwards due to the supporting effect of the cover plate, and therefore the safety of people at the bottom of the hole is ensured. When the bucket is transferred from the ground, the grid-shaped protective steel plate 2 can be opened by manually pulling the rope 4, so that the bucket can conveniently go down to the bottom of the hole after passing through the notch. The advantage of arranging the grid-shaped protective steel plate 2 is that the hole bottom and the ground can be observed by people, and the operation position of the bucket can be observed, so that the grid-shaped protective steel plate 2 can be opened in time.
The apron is including the crescent protection steel sheet 5 that 2 symmetries and adjacent 1 pore wall of artifical bored pile set up, is provided with the connection protection steel sheet 6 that 2 symmetries and adjacent 1 pore wall of artifical bored pile set up between 2 crescent protection steel sheets 5, crescent protection steel sheet 5 and connection protection steel sheet 6 adjacent pore wall setting can play better protective effect. 2 crescent protection steel sheet 5 and 2 connect and form 1 square frame shape breach between the protection steel sheet 6, and this square frame shape breach department is used for installing grid form protection steel sheet 2. When the bucket goes up and down, the person at the bottom of the hole can stand at the bottom of the crescent protective steel plate 5.
The back end of the grid-shaped protective steel plate 2 is rotatably hinged with one crescent protective steel plate 5 through a hinge, the square frame-shaped gap of the grid-shaped protective steel plate 2 connected with the protective steel plate 6 is of a step-shaped structure, and the bottom surfaces of the left end and the right end of the grid-shaped protective steel plate 2 are supported on the step surface of the step-shaped structure of the protective steel plate 6. The grid-shaped protective steel plate 2 is supported by the step surface of the connecting protective steel plate 6 in the using process.
In order to avoid the hinge from being damaged due to large collision between the grid-shaped protective steel plate 2 and the step surface of the connecting protective steel plate 6 when the grid-shaped protective steel plate 2 is closed under the action of gravity, a buffer rubber layer 7 is arranged on the step surface of the connecting protective steel plate 6.
The grid-shaped protection steel plates 2 are arranged in 2 numbers and symmetrically arranged, the head ends of each grid-shaped protection steel plate 2 are provided with slings to penetrate through the notches 8, 2 slings penetrate through the notches 8 and are adjacently arranged to form 1 round hole, and when the grid-shaped protection steel plates 2 are covered, the steel wire rope of the bucket can conveniently penetrate through the gaps.
Be fixed with the gag lever post 9 that stretches out in the downthehole on the artifical bored pile 1 pore wall of 2 back ends tops of grid form protection steel sheet, the length that gag lever post 9 stretches out in the hole is greater than the distance of artifical bored pile 1 pore wall to grid form protection steel sheet 2 rotation link, gag lever post 9 highly is less than grid form protection steel sheet 2 apart from grid form protection steel sheet 2's width, the aim at that sets up like this guarantees under the drive effect of rope 4, its back of grid form protection steel sheet 2 upwards deflection in-process can contact with gag lever post 9, and during the contact with gag lever post 9, grid form protection steel sheet 2's deflection angle is no longer than 90 degrees, after loosening rope 4, grid form protection steel sheet 2 can realize under the dead weight effect that the lid closes.
The limiting rods 9 are arranged in a plurality of numbers, and the side face of one limiting rod 9 is provided with the pulley 3. Install pulley 3 more convenient than installing on the pore wall on gag lever post 9, dismantle also more swiftly. The limiting rod 9 can limit the grid-shaped protective steel plate 2 and can also be used as an installation component of the pulley 3.
During the installation process of the protective device, the protective device and the bottom of the hole should keep a limit height, for example, the limit height is set to be 3m, the normal installation height is 2m, and as the hole is dug downwards continuously, when the distance between the protective device and the bottom of the hole exceeds 3m, the installation position of the protective device needs to be adjusted downwards. As described in the background art, in the conventional manual hole digging pile 1, in order to prevent the hole wall from collapsing, a concrete retaining wall 10 is cast in place or concrete is sprayed on the hole wall. When the cast-in-place concrete retaining wall 10 is adopted, the crescent-shaped protective steel plate 5 and the connecting protective steel plate 6 are fixed on the top surface of the cast-in-place concrete retaining wall 10 above the hole bottom through the bolts 11, and the bolts 11 are adopted for connection, so that the steel plate can be conveniently removed and then moved to the top surface of the cast-in-place concrete retaining wall 10 of the next section for installation. When the hole wall is used for spraying concrete, the crescent-shaped protective steel plate 5 and the connecting protective steel plate 6 are fixed on the embedded fixed steel plate 12 through the bolts 11, 1 layer of embedded fixed steel plates 12 are arranged on the hole wall of the manual hole digging pile 1 at intervals of 1 section, and each layer of embedded fixed steel plate 12 is formed by a plurality of embedded fixed steel plates 12 distributed in an annular array. Therefore, in the downward excavation process, the fixed steel plates 12 need to be embedded in layers at different heights, so that the distance from the protective device to the bottom of the hole cannot exceed the set limit height.
If the mounting height of the protection device is always kept unchanged, after the hole is dug downwards continuously, the height of the protection device from the bottom of the hole is larger and larger, and after the bucket is broken at the position below the protection device in an ascending or descending mode, the bucket falls to the bottom of the hole to cause great damage, so that casualties are easily caused. The more dangerous the hole is dug down. Therefore, the mounting height of the protective device needs to be continuously adjusted to ensure that the height between the protective device and the bottom of the hole does not exceed the limit height, so that the danger generated after the bucket falls off is reduced.
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011138673.5A CN112211421A (en) | 2020-10-22 | 2020-10-22 | A kind of artificial digging pile hole inner protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011138673.5A CN112211421A (en) | 2020-10-22 | 2020-10-22 | A kind of artificial digging pile hole inner protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112211421A true CN112211421A (en) | 2021-01-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011138673.5A Pending CN112211421A (en) | 2020-10-22 | 2020-10-22 | A kind of artificial digging pile hole inner protection device |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202543947U (en) * | 2012-03-22 | 2012-11-21 | 中建七局第二建筑有限公司 | Safety device for piles with man-excavated shaft |
| CN206571184U (en) * | 2017-03-03 | 2017-10-20 | 周东海 | A kind of high rise elevator well construction safety device |
| JP2017210835A (en) * | 2016-05-27 | 2017-11-30 | 日本車輌製造株式会社 | Fall prevention scaffold |
| CN108756272A (en) * | 2018-07-27 | 2018-11-06 | 广东建星建造集团有限公司 | A kind of floor hole safeguard structure and its installation method |
| CN110424412A (en) * | 2019-07-22 | 2019-11-08 | 东莞市建工集团有限公司 | Manual hole digging pile system |
| CN110439307A (en) * | 2019-07-29 | 2019-11-12 | 中铁二十二局集团有限公司 | Safety protection facility and application method for round manual digging pile construction |
| CN210529689U (en) * | 2019-08-26 | 2020-05-15 | 贵州省交通规划勘察设计研究院股份有限公司 | Manual hole digging pile construction protection device |
| CN210887238U (en) * | 2019-05-23 | 2020-06-30 | 中建五局土木工程有限公司 | Double-sided opening type orifice protective grille |
| CN214034872U (en) * | 2020-10-22 | 2021-08-24 | 贵州桥梁建设集团有限责任公司 | Downthehole protector of manual hole digging pile |
-
2020
- 2020-10-22 CN CN202011138673.5A patent/CN112211421A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202543947U (en) * | 2012-03-22 | 2012-11-21 | 中建七局第二建筑有限公司 | Safety device for piles with man-excavated shaft |
| JP2017210835A (en) * | 2016-05-27 | 2017-11-30 | 日本車輌製造株式会社 | Fall prevention scaffold |
| CN206571184U (en) * | 2017-03-03 | 2017-10-20 | 周东海 | A kind of high rise elevator well construction safety device |
| CN108756272A (en) * | 2018-07-27 | 2018-11-06 | 广东建星建造集团有限公司 | A kind of floor hole safeguard structure and its installation method |
| CN210887238U (en) * | 2019-05-23 | 2020-06-30 | 中建五局土木工程有限公司 | Double-sided opening type orifice protective grille |
| CN110424412A (en) * | 2019-07-22 | 2019-11-08 | 东莞市建工集团有限公司 | Manual hole digging pile system |
| CN110439307A (en) * | 2019-07-29 | 2019-11-12 | 中铁二十二局集团有限公司 | Safety protection facility and application method for round manual digging pile construction |
| CN210529689U (en) * | 2019-08-26 | 2020-05-15 | 贵州省交通规划勘察设计研究院股份有限公司 | Manual hole digging pile construction protection device |
| CN214034872U (en) * | 2020-10-22 | 2021-08-24 | 贵州桥梁建设集团有限责任公司 | Downthehole protector of manual hole digging pile |
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Application publication date: 20210112 |
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