CN111172989A - Foundation pit construction method for communication iron tower installation foundation - Google Patents
Foundation pit construction method for communication iron tower installation foundation Download PDFInfo
- Publication number
- CN111172989A CN111172989A CN202010101887.9A CN202010101887A CN111172989A CN 111172989 A CN111172989 A CN 111172989A CN 202010101887 A CN202010101887 A CN 202010101887A CN 111172989 A CN111172989 A CN 111172989A
- Authority
- CN
- China
- Prior art keywords
- foundation pit
- mounting plate
- foundation
- gear
- side wall
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Images
Classifications
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/42—Foundations for poles, masts or chimneys
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/02—Improving by compacting
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Agronomy & Crop Science (AREA)
- Environmental & Geological Engineering (AREA)
- Soil Sciences (AREA)
- Road Repair (AREA)
Abstract
The invention belongs to the technical field of communication equipment, and particularly relates to a foundation pit construction method for a communication iron tower installation foundation, which comprises the following steps: step one, excavation of a foundation pit: digging a foundation pit with a corresponding depth according to the height of the installation foundation, and tamping the bottom of the foundation pit; step two, manufacturing an intermediate layer: pouring a cushion layer at the bottom of the foundation pit, building a side wall on the side wall, and flattening the cushion layer and the side wall; step three, installing a template: installing a template according to the size of the installation foundation, and arranging lower-layer steel bars for fixing the installation foundation; step four, arranging a water retaining ridge: and arranging a water retaining ridge along the upper edge opening of the foundation pit, building the water retaining ridge by using clay bricks, and plastering cement mortar. And secondly, before the side wall is built on the side wall, leveling the surface of the side wall of the foundation pit by using a foundation pit building construction machine. The invention solves the problems of high labor consumption and low construction efficiency existing in the process of manually tamping and leveling the side wall of the foundation pit at present, and improves the flatness of the surface of the side wall of the foundation pit.
Description
Technical Field
The invention belongs to the technical field of communication equipment, and particularly relates to a foundation pit construction method for a communication iron tower installation foundation.
Background
The communication tower mounting foundation safely and reliably transmits all loads of the upper structure of the communication tower to the foundation, keeps the integral stability of the structure and is an important component of the communication tower. Before the communication tower is installed, a foundation pit for fixing a communication tower installation foundation needs to be built on the ground, an intermediate layer for preventing water needs to be built on the bottom surface and the side wall of the foundation pit after the foundation pit is dug, and the bottom surface and the side wall surface of the foundation pit need to be subjected to leveling treatment before the intermediate layer is built. Currently, the leveling and tamping of the bottom surface of the foundation pit can be completed by adopting a traditional tamper, but the tamping of the side wall of the foundation pit can be only carried out by manually holding a spade, so that the labor consumption is large and the construction efficiency is low; the force cannot be accurately controlled by manually tamping the side wall of the foundation pit by using a shovel, so that the flatness of the side wall of the foundation pit cannot be guaranteed, a gap is generated between the middle layer and the side wall, and the risk of water seepage exists in later use; the soil of the side wall of the foundation pit contains a lot of hard soil blocks and broken stone particles, and the soil blocks and the broken stone particles can reduce the flatness of the surface of the side wall.
Disclosure of Invention
Technical problem to be solved
The invention provides a foundation pit construction method for a communication iron tower installation foundation, aiming at solving the following problems existing in the prior art when the side wall of a foundation pit is manually tamped and leveled: the manual hand-held spade is large in labor consumption and low in construction efficiency when being used for leveling; the force cannot be accurately controlled by manually tamping the side wall of the foundation pit by using a shovel, so that the flatness of the side wall of the foundation pit cannot be guaranteed, a gap is generated between the middle layer and the side wall, and the risk of water seepage exists in later use; the soil of the side wall of the foundation pit contains a lot of hard soil blocks and broken stone particles, and the soil blocks and the broken stone particles can reduce the flatness of the surface of the side wall.
(II) technical scheme
In order to solve the technical problems, the invention adopts the following technical scheme:
a foundation pit construction method for a communication iron tower installation foundation comprises the following steps:
step one, excavation of a foundation pit: digging a foundation pit with corresponding depth according to the height of the installation foundation, and tamping the bottom of the foundation pit.
Step two, manufacturing an intermediate layer: and pouring a cushion layer at the bottom of the foundation pit, building a side wall on the side wall, and flattening the cushion layer and the side wall.
Step three, installing a template: and installing the template according to the size of the installation foundation, and arranging the lower-layer steel bars for fixedly installing the foundation.
Step four, arranging a water retaining ridge: and arranging a water retaining ridge along the upper edge opening of the foundation pit, building the water retaining ridge by using clay bricks, and plastering cement mortar.
And step two, before the side wall is built on the side wall, leveling the surface of the side wall of the foundation pit by adopting a foundation pit building construction machine, wherein the foundation pit building construction machine comprises a base, and rollers are rotatably arranged on two sides of the base. The upper surface of the base is provided with two parallel mounting columns which are fixed through a connecting rod. The mounting post surface has seted up the spout along its length direction, and first mounting panel passes through spout and mounting post sliding fit. The surface of the first mounting plate is provided with a second mounting plate which is parallel to the first mounting plate. The edge of the surface of the second mounting plate is fixedly connected with a limiting sleeve perpendicular to the second mounting plate, a sliding rod is slidably mounted in the limiting sleeve, and the end part of the sliding rod is fixedly connected with a third mounting plate parallel to the second mounting plate. The slide bar overcoat is equipped with first spring, and the both ends of first spring fixed connection respectively are on stop collar terminal surface and third mounting panel surface. The middle position of the surface of the second mounting plate is fixedly provided with a hydraulic cylinder vertical to the second mounting plate, and the end part of a piston rod of the hydraulic cylinder is fixedly provided with a pressing plate parallel to the third mounting plate. When the side wall of the foundation pit is compacted and leveled, the position of the base is adjusted firstly, so that the third mounting plate and the side wall of the foundation pit are in a state of being parallel to each other. The pressing plate is driven by the hydraulic cylinder to move towards the third mounting plate, and the pressing plate pushes the third mounting plate to move towards the side wall of the foundation pit after abutting against the third mounting plate, and simultaneously stretches the first spring.
The surface of the third mounting plate is rotatably provided with a driving gear and a plurality of groups of round grinding discs. The inside hollow structure that is of pressure dish rolls, rolls the outside edge of dish and evenly is provided with the driving gear along its circumference, and the terminal surface of driving gear and pressure dish is located the coplanar. The grinding discs are arranged in a row with a plurality of groups parallel to each other, adjacent grinding discs in each row are matched with each other through transmission teeth, and the grinding discs adjacent to the driving gear are matched with the driving gear through the transmission teeth. The third mounting plate gradually enters the soil in the process of moving towards the side wall of the foundation pit, and the end face of the rolling disc compacts the soil; meanwhile, the driving gear rotates to drive all the rolling discs to rotate, and when adjacent rolling discs rotate, the relative motion of the transmission gear crushes soil blocks in the soil and crushes broken stones in the soil. When the pressing plate pushes the third mounting plate to reach the preset maximum stroke, the rolling disc stops rotating, the hydraulic cylinder drives the pressing plate to retract, and the third mounting plate and the rolling disc retract under the elastic action of the first spring until the third mounting plate and the rolling disc return to the initial position. And after the compaction is finished, adjusting the height of the first mounting plate, and continuously carrying out compaction treatment on the upper area and the lower area of the finished area.
As a preferred embodiment of the present invention, in the foundation pit construction machine, a first rack perpendicular to a third mounting plate is fixedly mounted on a surface of the second mounting plate, and an end of the first rack penetrates the third mounting plate. A first rotating shaft is rotatably installed on the side edge of the pressing plate, a first gear meshed with the first rack is fixedly installed on the first rotating shaft, and a first bevel gear is fixedly installed at the end of the first rotating shaft. The end face of the driving gear is fixedly connected with a second rotating shaft which vertically penetrates through the third mounting plate, and a second bevel gear is fixedly mounted at the end of the second rotating shaft. In the process that the third mounting plate is pushed by the pressing plate to move, the first gear and the first rack are in the meshed state, so that the first gear is in the rotating state, and the first rotating shaft and the first bevel gear are driven to rotate at the same time. When the first bevel gear and the second bevel gear are in a meshed state, the first bevel gear drives the second bevel gear and the second rotating shaft to rotate, so that the driving gear is driven to rotate, and the driving gear sequentially drives all the grinding discs to rotate. When the third mounting plate is pushed by the pressing plate to reach the preset maximum stroke, the pressing plate is in a static state, the first gear does not rotate any more, and the first bevel gear, the second rotating shaft, the driving gear and the rolling disc do not rotate any more.
As a preferred technical scheme of the present invention, in the foundation pit construction machinery, the end face of the grinding disc is provided with a plurality of inlets. The inside bearing piece that has through support fixed mounting of pressure dish, bearing piece pass through the sealed piece of second spring coupling, and sealed piece mutually supports with the entry on rolling the dish terminal surface, sealed piece surface with roll a set terminal surface parallel and level. A plurality of fixed shafts are vertically arranged on the third mounting plate, one ends of the fixed shafts extend to the inside of the rolling disc, and second gears are fixedly arranged on the fixed shafts. And a plurality of third gears which are meshed with the second gears are rotatably arranged in the grinding disc. An outlet is formed in the circumferential surface of the grinding disc and located between two adjacent transmission gears, and the outlet corresponds to the circumferential surface of the third gear. The terminal surface of pressure dish carries out the compaction in-process to soil, and rubble grain in the soil can support and press sealed piece and compression second spring because hardness is great, after the second spring compression reached a certain position, rubble grain got into completely and rolls in the dish to rolling in the dish is inside rolling, no longer play to sealed piece and support the pressure effect, sealed piece resumes to the normal position under second spring elastic force effect. In the rotation process of the rolling disc, the second gear is in a fixed state, and the third gear and the second gear are in a meshed state, so that the third gear can rotate. The relative rotation of third gear and second gear, on the one hand carries out preliminary breakage to the rubble grain that gets into the pressure dish, and on the other hand carries out directional transport to the rubble grain, sends the rubble grain to the exit for the rubble grain gets into and carries out the secondary breakage between two adjacent pressure dishes, ensures that the rubble grain after the breakage can not play the influence to foundation ditch lateral wall surface smoothness.
As a preferred technical solution of the present invention, in the foundation pit construction machine, the inlets on the end surfaces of the rolling discs are circular, and the diameters of the inlets are different, so that crushed stone particles of different diameters can be collected and crushed by the rolling discs.
As a preferred technical solution of the present invention, in the foundation pit construction machinery, the second mounting plate is rotatably fitted to the first mounting plate through a third rotating shaft, and an end of the third rotating shaft penetrates through the first mounting plate and is fixedly mounted with a fourth gear. The surface of first mounting panel has first motor through motor cabinet fixed mounting, and the output shaft tip fixed mounting of first motor has incomplete gear, and incomplete gear and fourth gear mutually support. The incomplete gear is driven to rotate by the first motor, when the pressing plate pushes the third mounting plate and the rolling disc to press the soil on the side wall, the incomplete gear and the fourth gear are in a separated state, and the second mounting plate does not rotate; the third mounting panel with roll the dish and retract the in-process, incomplete gear and fourth gear are in the engaged state, and the rotation takes place for the second mounting panel to adjust the position of rolling the dish, the rolling dish is carried out the compaction to the partial soil that fails to contact in the compaction process last time and is leveled next time, ensures that every soil in the same block region all obtains the compaction and levels, improves the holistic roughness in lateral wall surface.
As a preferred technical solution of the present invention, in the foundation pit construction machinery, a fifth gear is rotatably installed on a side surface of the third installation plate, and a second rack partially engaged with the fifth gear is vertically and fixedly installed on a surface of the second installation plate. The side surface of the third mounting plate is in sliding fit with a third rack which is perpendicular to the second rack and partially meshed with the fifth gear, a strip-shaped scraping blade is fixedly mounted at the end part of the third rack, and the strip-shaped scraping blade and the end surface of the rolling disc are positioned on the same plane. The third mounting panel contracts the in-process under the elasticity effect of first spring, because fifth gear and second rack are in the engaged state, third rack and fifth gear are also in the engaged state, so the fifth gear takes place to rotate and drives the third rack and shift up simultaneously, and the third rack drives the bar doctor-bar and shifts up, and the bar doctor-bar strikes off the soil that is attached to rolling the dish terminal surface, avoids the soil that is attached to rolling the dish terminal surface to cause the influence to the roughness of lateral wall in the next working process.
As a preferred technical scheme of the invention, in the foundation pit construction machinery, a first lead screw is rotatably mounted in a chute, the first lead screw is rotatably matched with a first mounting plate, a second motor is fixedly mounted at the top of a mounting column, and the second motor is fixedly connected with the first lead screw. Drive first lead screw through the second motor and rotate to carry out the accurate adjustment to the height of first mounting panel, and then adjust the height of third mounting panel and grinding disc.
As a preferred technical solution of the present invention, in the foundation pit construction machine, the mounting column is rotatably fitted to the upper surface of the base. The upper surface of the base is provided with a limiting groove, and a sliding block is matched in the limiting groove in a sliding manner. The limiting groove is internally provided with a second lead screw in a rotating mode along the length direction of the limiting groove, the second lead screw penetrates through the sliding block, and the end portion of the second lead screw is fixedly provided with a rotating handle. The slider is rotated and is connected with one end of the adjusting rod, and the other end of the adjusting rod is in running fit with the connecting rod. The second screw rod is driven to rotate by rotating the handle, so that the position of the sliding block is adjusted; the slider is through adjusting the position of pole adjustment connecting rod to adjust the angle between erection column and the base, and then the angle between adjustment pressure dish and the foundation ditch lateral wall ensures to be in the parallel state each other between pressure dish and the foundation ditch lateral wall.
(III) advantageous effects
The invention has at least the following beneficial effects:
(1) the foundation pit construction method for the communication iron tower installation foundation solves the problems of large labor consumption and low construction efficiency existing when the side wall of the foundation pit is manually tamped and leveled at present; the invention can accurately control the tamping force, thereby ensuring the flatness of the side wall of the foundation pit and eliminating the risk of water seepage in later use; the invention can crush the broken stones in the soil in the process of tamping the side wall of the foundation pit, thereby further improving the flatness of the surface of the side wall of the foundation pit.
(2) In the foundation pit construction machinery provided by the invention, soil on the side wall of the foundation pit is compacted through the end faces of the rolling discs, in the compaction process, as the rolling discs are always in a rotating state, relative movement of the transmission teeth between the adjacent rolling discs can crush harder soil blocks, and meanwhile, the rolling discs can collect and crush broken stone particles in the soil, so that the broken stone particles are ensured to be particles with lower hardness and smaller volume, and further, the influence of the soil blocks and the broken stones on the surface flatness of the side wall of the foundation pit is avoided.
(3) In the foundation pit construction machinery provided by the invention, the third mounting plate and the rolling disc are pushed to advance through the hydraulic cylinder, and the third mounting plate and the rolling disc are reset through the first spring, so that the feeding amount of the rolling disc in each compaction process is accurately controlled, the consistency of the compaction force in each time is ensured, and the flatness of the side wall of the foundation pit is further improved.
(4) When the foundation pit with the inclined side wall is compacted, the foundation pit construction machinery provided by the invention can accurately adjust the angle between the mounting column and the base through the matching of the second screw rod, the sliding block and the adjusting rod, so that the end surface of the grinding disc and the side wall of the foundation pit are ensured to be in a parallel state, and the flatness of the compacted side wall of the foundation pit is further improved.
Drawings
The invention is further illustrated with reference to the following figures and examples.
Fig. 1 is a schematic view of a first three-dimensional structure of a pit construction machine according to an embodiment of the present invention;
FIG. 2 is a schematic view of a second three-dimensional structure of a pit construction machine according to an embodiment of the present invention;
FIG. 3 is a schematic view of a third perspective structure of a pit construction machine according to an embodiment of the present invention;
FIG. 4 is a schematic view of the internal structure of a grinding disc of the foundation pit construction machinery in the embodiment of the invention;
FIG. 5 is an enlarged schematic view of a pit construction machine A according to an embodiment of the present invention;
FIG. 6 is a top view of a pit building construction machine according to an embodiment of the present invention;
fig. 7 is a step diagram of a foundation pit construction method according to an embodiment of the present invention.
In the figure: 1-base, 2-roller, 3-mounting column, 4-connecting rod, 5-chute, 6-first mounting plate, 7-second mounting plate, 8-stop collar, 9-sliding rod, 10-third mounting plate, 11-first spring, 12-hydraulic cylinder, 13-pressing plate, 14-driving gear, 15-rolling plate, 16-first rack, 17-first rotating shaft, 18-first gear, 19-first bevel gear, 20-second rotating shaft, 21-second bevel gear, 22-bearing block, 23-second spring, 24-sealing block, 25-fixed shaft, 26-second gear, 27-third gear, 28-outlet, 29-third rotating shaft, 30-fourth gear, 31-first motor, 32-incomplete gear, 33-fifth gear, 34-second rack, 35-third rack, 36-strip scraper, 37-second motor, 38-limiting groove, 39-sliding block and 40-adjusting rod.
Detailed Description
The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.
As shown in fig. 7, the present embodiment provides a foundation pit construction method for a communication tower installation foundation, including the following steps:
step one, excavation of a foundation pit: digging a foundation pit with corresponding depth according to the height of the installation foundation, and tamping the bottom of the foundation pit.
Step two, manufacturing an intermediate layer: and pouring a cushion layer at the bottom of the foundation pit, building a side wall on the side wall, and flattening the cushion layer and the side wall.
Step three, installing a template: and installing the template according to the size of the installation foundation, and arranging the lower-layer steel bars for fixedly installing the foundation.
Step four, arranging a water retaining ridge: and arranging a water retaining ridge along the upper edge opening of the foundation pit, building the water retaining ridge by using clay bricks, and plastering cement mortar.
And step two, before the side wall is built, leveling the surface of the side wall of the foundation pit by adopting a foundation pit building construction machine shown in figures 1 to 6, wherein the foundation pit building construction machine comprises a base 1, and rollers 2 are rotatably arranged on two sides of the base 1. The upper surface of the base 1 is provided with two parallel mounting columns 3, and the two mounting columns 3 are fixed through a connecting rod 4. The surface of the mounting column 3 is provided with a sliding groove 5 along the length direction, and the first mounting plate 6 is in sliding fit with the mounting column 3 through the sliding groove 5. The surface of the first mounting plate 6 is mounted with a second mounting plate 7 parallel to it. The edge of the surface of the second mounting plate 7 is fixedly connected with a limiting sleeve 8 perpendicular to the second mounting plate, a sliding rod 9 is arranged in the limiting sleeve 8 in a sliding mode, and the end portion of the sliding rod 9 is fixedly connected with a third mounting plate 10 parallel to the second mounting plate 7. The sliding rod 9 is sleeved with a first spring 11, and two ends of the first spring 11 are respectively and fixedly connected to the end face of the limiting sleeve 8 and the surface of the third mounting plate 10. And a hydraulic cylinder 12 perpendicular to the second mounting plate 7 is fixedly mounted in the middle of the surface of the second mounting plate 7, and a pressing plate 13 parallel to the third mounting plate 10 is fixedly mounted at the end part of a piston rod of the hydraulic cylinder 12. When the side wall of the foundation pit is compacted and leveled, the position of the base 1 is adjusted firstly, so that the third mounting plate 10 and the side wall of the foundation pit are in a state of being parallel to each other. The hydraulic cylinder 12 drives the pressing plate 13 to move towards the third mounting plate 10, the pressing plate 13 pushes the third mounting plate 10 to move towards the side wall of the foundation pit after abutting against the third mounting plate 10, and meanwhile, the first spring 11 is stretched.
The surface of the third mounting plate 10 is rotatably mounted with a driving gear 14 and a plurality of sets of circular rolling discs 15. The inside hollow structure that is of grinding dish 15, the outside edge of grinding dish 15 evenly is provided with the driving gear along its circumference, and driving gear 14 and the terminal surface that grinds dish 15 are located the coplanar. The rolling discs 15 are arranged in a plurality of groups of parallel rows, adjacent rolling discs 15 in each row are matched with each other through transmission teeth, and the rolling discs 15 adjacent to the driving gear 14 are matched with the driving gear 14 through the transmission teeth. The third mounting plate 10 gradually enters the soil in the process of moving towards the side wall of the foundation pit, and the end face of the rolling disc 15 compacts the soil; meanwhile, the driving gear 14 rotates to drive all the pressure plates 15 to rotate, and when the adjacent pressure plates 15 rotate, the relative motion of the transmission gear crushes soil blocks in the soil and crushes broken stones in the soil. When the pressing plate 13 pushes the third mounting plate 10 to reach a preset maximum stroke, the rolling plate 15 stops rotating, the hydraulic cylinder 12 drives the pressing plate 13 to retract, and the third mounting plate 10 and the rolling plate 15 retract under the elastic force of the first spring 11 until the initial positions are recovered. After the compaction is completed, the height of the first mounting plate 6 is adjusted, and the compaction treatment is continued for the upper and lower regions of the completed region.
In the pit construction machine of the present embodiment, the first rack 16 perpendicular to the third mounting plate 10 is fixedly mounted to the surface of the second mounting plate 7, and the end of the first rack 16 penetrates the third mounting plate 10. A first rotating shaft 17 is rotatably mounted on the side edge of the pressing plate 13, a first gear 18 engaged with the first rack 16 is fixedly mounted on the first rotating shaft 17, and a first bevel gear 19 is fixedly mounted on the end portion of the first rotating shaft 17. The end surface of the driving gear 14 is fixedly connected with a second rotating shaft 20 vertically penetrating through the third mounting plate 10, and a second bevel gear 21 is fixedly mounted at the end part of the second rotating shaft 20. During the movement of pushing the third mounting plate 10 by the pressing plate 13, the first gear 18 is in a rotating state due to the meshing state of the first gear 18 and the first rack 16, and the first rotating shaft 17 and the first bevel gear 19 are driven to rotate. When the first bevel gear 19 and the second bevel gear 21 are engaged, the first bevel gear 19 drives the second bevel gear 21 and the second rotating shaft 20 to rotate, so as to drive the driving gear 14 to rotate, and the driving gear 14 in turn drives all the pressure-rolling discs 15 to rotate. When the pressing plate 13 pushes the third mounting plate 10 to reach the preset maximum stroke, the pressing plate 13 is in a static state, the first gear 18 does not rotate any more, and the first bevel gear 19, the second bevel gear 21, the second rotating shaft 20, the driving gear 14 and the rolling disc 15 do not rotate any more.
In the foundation pit construction machine of the present embodiment, the end surface of the rolling disc 15 is provided with a plurality of inlets. Grinding 15 inside through support fixed mounting have bearing block 22, and bearing block 22 passes through second spring 23 and connects sealed piece 24, and sealed piece 24 mutually supports with the entry that grinds on 15 terminal surfaces of dish, and sealed piece 24 surface with grind 15 terminal surface parallel and level of dish. A plurality of fixed shafts 25 are vertically installed on the third installation plate 10, and one ends of the fixed shafts 25 extend into the interior of the pressure plate 15 and are fixedly installed with second gears 26. A plurality of third gears 27 meshed with the second gears 26 are rotatably installed inside the pressure rolling disc 15. An outlet 28 is formed between two adjacent transmission gears on the circumferential surface of the grinding disc 15, and the outlet 28 corresponds to the circumferential surface of the third gear 27. The terminal surface of the pressure grinding disc 15 carries out the compaction in-process to soil, and the rubble grain in the soil can support and press sealed piece 24 and compress second spring 23 because hardness is great, and after second spring 23 compressed a certain position, the rubble grain got into pressure grinding disc 15 inside completely to rolling taking place inside the pressure grinding disc 15, no longer playing the effect of supporting and pressing sealed piece 24, sealed piece 24 resumes to the normal position under the effect of second spring 23 elasticity. During the rotation of the platen 15, since the second gear 26 is in a fixed state and the third gear 27 and the second gear 26 are in an engaged state, the third gear 27 rotates. Third gear 27 and second gear 26's relative rotation, on the one hand carry out preliminary breakage to the rubble grain that gets into pressure dish 15, and on the other hand carries out directional transport to the rubble grain, sends the rubble grain to export 28 department for the rubble grain gets into and carries out the secondary breakage between two adjacent pressure dishes 15, ensures that the rubble grain after the breakage can not play the influence to foundation ditch lateral wall surface smoothness.
In the construction machine for constructing a foundation pit of the present embodiment, the inlet on the end face of the rolling disc 15 is circular, and the diameter of the inlet is different in size, so that crushed stone particles of different diameters can be collected by the rolling disc 15 and crushed.
In the pit construction machine of the present embodiment, the second mounting plate 7 is rotatably fitted to the first mounting plate 6 by the third rotating shaft 29, and the end of the third rotating shaft 29 penetrates the first mounting plate 6 and is fixedly mounted with the fourth gear 30. The surface of the first mounting plate 6 is fixedly provided with a first motor 31 through a motor base, the end part of an output shaft of the first motor 31 is fixedly provided with an incomplete gear 32, and the incomplete gear 32 is matched with the fourth gear 30. The incomplete gear 32 is driven to rotate by the first motor 31, when the pressing plate 13 pushes the third mounting plate 10 and the rolling disc 15 to press the side wall soil, the incomplete gear 32 and the fourth gear 30 are in a separated state, and the second mounting plate 7 does not rotate; in the retraction process of the third mounting plate 10 and the rolling disc 15, the incomplete gear 32 and the fourth gear 30 are in a meshed state, and the second mounting plate 7 rotates, so that the position of the rolling disc 15 is adjusted, the rolling disc 15 is used for compacting and flattening partial soil which cannot be contacted in the last compacting process, and each soil in the same area is compacted and flattened, so that the integral flatness of the surface of the side wall is improved.
In the pit construction machine of the present embodiment, the fifth gear 33 is rotatably installed at the side of the third installation plate 10, and the second rack 34 partially engaged with the fifth gear 33 is vertically and fixedly installed at the surface of the second installation plate 7. The side surface of the third mounting plate 10 is in sliding fit with a third rack 35 which is perpendicular to the second rack 34 and partially meshed with the fifth gear 33, a strip-shaped scraping blade 36 is fixedly mounted at the end part of the third rack 35, and the strip-shaped scraping blade 36 and the end surface of the rolling disc 15 are positioned on the same plane. The third mounting panel 10 is at the elasticity effect of first spring 11 down the in-process that contracts, because fifth gear 33 and second rack 34 are in the engaged state, third rack 35 and fifth gear 33 are also in the engaged state, so fifth gear 33 takes place to rotate and drives third rack 35 and move up simultaneously, third rack 35 drives bar doctor-bar 36 and moves up, bar doctor-bar 36 strikes off the soil that is attached to rolling dish 15 terminal surface, avoid attaching to the soil that rolls dish 15 terminal surface to cause the influence to the roughness of lateral wall in the course of next work.
In the foundation pit construction machinery of the embodiment, a first lead screw is rotatably mounted in the chute 5, the first lead screw is rotatably matched with the first mounting plate 6, a second motor 37 is fixedly mounted at the top of the mounting column 3, and the second motor 37 is fixedly connected with the first lead screw. The second motor 37 drives the first lead screw to rotate, so that the height of the first mounting plate 6 is accurately adjusted, and the heights of the third mounting plate 10 and the pressure grinding plate 15 are adjusted.
In the pit construction machine of the present embodiment, the mounting column 3 is rotatably fitted to the upper surface of the base 1. The upper surface of the base 1 is provided with a limiting groove 38, and a sliding block 39 is in sliding fit in the limiting groove 38. A second lead screw is rotatably mounted in the limiting groove 38 along the length direction thereof, penetrates through the sliding block 39, and a rotating handle is fixedly mounted at the end part of the second lead screw. One end of an adjusting rod 40 is rotatably connected on the sliding block 39, and the other end of the adjusting rod 40 is rotatably matched with the connecting rod 4. The second lead screw is driven to rotate by rotating the handle, so that the position of the sliding block 39 is adjusted; the slider 39 adjusts the position of connecting rod 4 through adjusting pole 40 to adjust the angle between erection column 3 and base 1, and then adjust the third mounting panel 10 and roll the angle between dish 15 and the foundation ditch lateral wall, ensure to be in the parallel state each other between dish 15 and the foundation ditch lateral wall of rolling.
The working process of the foundation pit construction machine in the embodiment is as follows: the position of the base 1 and the angle between the mounting column 3 and the base 1 are adjusted first, so that the third mounting plate 10 and the side wall of the foundation pit are in a parallel state. And starting the hydraulic cylinder 12 and the first motor 31, driving the pressing plate 13 to move towards the third mounting plate 10 through the hydraulic cylinder 12, pushing the third mounting plate 10 to move towards the side wall of the foundation pit after the pressing plate 13 abuts against the third mounting plate 10, and stretching the first spring 11. The third mounting plate 10 gradually enters the soil in the process of moving towards the side wall of the foundation pit, and the end face of the rolling disc 15 compacts the soil; meanwhile, the driving gear 14 rotates to drive all the pressure plates 15 to rotate, and when the adjacent pressure plates 15 rotate, the relative motion of the transmission gear crushes soil blocks in the soil and crushes broken stones in the soil. The strip-shaped scraper 36 scrapes off soil attached to the end face of the rolling disc 15 during retraction of the third mounting plate 10 by the elastic force of the first spring 11.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A foundation pit construction method for a communication iron tower installation foundation is characterized by comprising the following steps: the method comprises the following steps:
step one, excavation of a foundation pit: digging a foundation pit with a corresponding depth according to the height of the installation foundation, and tamping the bottom of the foundation pit;
step two, manufacturing an intermediate layer: pouring a cushion layer at the bottom of the foundation pit, building a side wall on the side wall, and flattening the cushion layer and the side wall;
step three, installing a template: installing a template according to the size of the installation foundation, and arranging lower-layer steel bars for fixing the installation foundation;
step four, arranging a water retaining ridge: arranging a water retaining ridge along the upper edge opening of the foundation pit, building the water retaining ridge by clay bricks, and plastering cement mortar;
before the side wall is built on the side wall in the second step, a foundation pit construction machine is adopted to level the surface of the side wall of the foundation pit, the foundation pit construction machine comprises a base (1), and rollers (2) are rotatably mounted on two sides of the base (1); the upper surface of the base (1) is provided with two parallel mounting columns (3), and the two mounting columns (3) are fixed through a connecting rod (4); the surface of the mounting column (3) is provided with a sliding groove (5) along the length direction, and the first mounting plate (6) is in sliding fit with the mounting column (3) through the sliding groove (5); the surface of the first mounting plate (6) is provided with a second mounting plate (7) which is parallel to the first mounting plate; a limiting sleeve (8) perpendicular to the second mounting plate (7) is fixedly connected to the surface edge of the second mounting plate (7), a sliding rod (9) is arranged in the limiting sleeve (8) in a sliding mode, and a third mounting plate (10) parallel to the second mounting plate (7) is fixedly connected to the end portion of the sliding rod (9); a first spring (11) is sleeved outside the sliding rod (9), and two ends of the first spring (11) are respectively and fixedly connected to the end surface of the limiting sleeve (8) and the surface of the third mounting plate (10); a hydraulic cylinder (12) vertical to the second mounting plate (7) is fixedly mounted in the middle of the surface of the second mounting plate, and a pressing plate (13) parallel to the third mounting plate (10) is fixedly mounted at the end part of a piston rod of the hydraulic cylinder (12);
a driving gear (14) and a plurality of groups of round grinding discs (15) are rotatably arranged on the surface of the third mounting plate (10); the interior of the grinding disc (15) is of a hollow structure, transmission teeth are uniformly arranged at the outer edge of the grinding disc (15) along the circumferential direction of the grinding disc, and the end faces of the driving gear (14) and the grinding disc (15) are positioned in the same plane; the grinding discs (15) are arranged in a plurality of groups of parallel rows, adjacent grinding discs (15) in each row are mutually matched through transmission teeth, and the grinding discs (15) adjacent to the driving gear (14) are mutually matched with the driving gear (14) through the transmission teeth.
2. The foundation pit construction method for the communication tower installation foundation according to claim 1, wherein: in the foundation pit construction machinery, a first rack (16) vertical to a third mounting plate (10) is fixedly mounted on the surface of a second mounting plate (7), and the end part of the first rack (16) penetrates through the third mounting plate (10); a first rotating shaft (17) is rotatably arranged on the side edge of the pressing plate (13), a first gear (18) meshed with the first rack (16) is fixedly arranged on the first rotating shaft (17), and a first bevel gear (19) is fixedly arranged at the end part of the first rotating shaft (17); the end face of the driving gear (14) is fixedly connected with a second rotating shaft (20) which vertically penetrates through the third mounting plate (10), and a second bevel gear (21) is fixedly mounted at the end part of the second rotating shaft (20).
3. The foundation pit construction method for the communication tower installation foundation according to claim 1, wherein: in the foundation pit construction machinery, the end surface of a grinding disc (15) is provided with a plurality of inlets; a bearing block (22) is fixedly installed in the grinding disc (15) through a support, the bearing block (22) is connected with a sealing block (24) through a second spring (23), the sealing block (24) is matched with an inlet on the end face of the grinding disc (15), and the surface of the sealing block (24) is flush with the end face of the grinding disc (15); a plurality of fixed shafts (25) are vertically arranged on the third mounting plate (10), one ends of the fixed shafts (25) extend into the rolling disc (15), and second gears (26) are fixedly arranged on the fixed shafts; a plurality of third gears (27) meshed with the second gears (26) are rotatably arranged in the grinding disc (15); an outlet (28) is formed between every two adjacent transmission teeth on the circumferential surface of the grinding disc (15), and the outlet (28) corresponds to the circumferential surface of the third gear (27).
4. The foundation pit construction method for the communication tower installation foundation according to claim 3, wherein: in the foundation pit construction machinery, an inlet on the end face of the grinding disc (15) is circular, and the diameter of the inlet is different in size.
5. The foundation pit construction method for the communication tower installation foundation according to claim 1, wherein: in the foundation pit construction machinery, a second mounting plate (7) is in running fit with a first mounting plate (6) through a third rotating shaft (29), and the end part of the third rotating shaft (29) penetrates through the first mounting plate (6) and is fixedly provided with a fourth gear (30); the surface of the first mounting plate (6) is fixedly provided with a first motor (31) through a motor base, the end part of an output shaft of the first motor (31) is fixedly provided with an incomplete gear (32), and the incomplete gear (32) is matched with the fourth gear (30).
6. The foundation pit construction method for the communication tower installation foundation according to claim 1, wherein: in the foundation pit construction machinery, a fifth gear (33) is rotatably arranged on the side surface of a third mounting plate (10), and a second rack (34) partially meshed with the fifth gear (33) is vertically and fixedly arranged on the surface of a second mounting plate (7); the side surface of the third mounting plate (10) is in sliding fit with a third rack (35) which is perpendicular to the second rack (34) and partially meshed with the fifth gear (33), a strip-shaped scraping blade (36) is fixedly mounted at the end part of the third rack (35), and the strip-shaped scraping blade (36) and the end surface of the grinding disc (15) are located on the same plane.
7. The foundation pit construction method for the communication tower installation foundation according to claim 1, wherein: in the foundation pit construction machinery, a first lead screw is rotatably mounted in a sliding groove (5), the first lead screw is rotatably matched with a first mounting plate (6), a second motor (37) is fixedly mounted at the top of a mounting column (3), and the second motor (37) is fixedly connected with the first lead screw.
8. The foundation pit construction method for the communication tower installation foundation according to claim 1, wherein: in the foundation pit construction machinery, the mounting column (3) is in running fit with the upper surface of the base (1); the upper surface of the base (1) is provided with a limiting groove (38), and a sliding block (39) is matched in the limiting groove (38) in a sliding way; a second lead screw is rotatably arranged in the limiting groove (38) along the length direction of the limiting groove, penetrates through the sliding block (39) and is fixedly provided with a rotating handle at the end part; one end of an adjusting rod (40) is rotatably connected on the sliding block (39), and the other end of the adjusting rod (40) is rotatably matched with the connecting rod (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010101887.9A CN111172989A (en) | 2020-02-19 | 2020-02-19 | Foundation pit construction method for communication iron tower installation foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010101887.9A CN111172989A (en) | 2020-02-19 | 2020-02-19 | Foundation pit construction method for communication iron tower installation foundation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111172989A true CN111172989A (en) | 2020-05-19 |
Family
ID=70651269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010101887.9A Withdrawn CN111172989A (en) | 2020-02-19 | 2020-02-19 | Foundation pit construction method for communication iron tower installation foundation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111172989A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112663587A (en) * | 2020-12-22 | 2021-04-16 | 刘慧� | Deep foundation construction is with reinforcing apparatus that roughness was just surveyed |
-
2020
- 2020-02-19 CN CN202010101887.9A patent/CN111172989A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112663587A (en) * | 2020-12-22 | 2021-04-16 | 刘慧� | Deep foundation construction is with reinforcing apparatus that roughness was just surveyed |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112411523B (en) | Tamping method for highway soft base layer structure | |
| CN109811750A (en) | A kind of consolidation machine being conveniently adjusted travelling route | |
| CN210086216U (en) | Composite foundation course pretreatment integration device | |
| CN111172989A (en) | Foundation pit construction method for communication iron tower installation foundation | |
| CN112538840A (en) | Landscape lake bank protection brick construction equipment | |
| CN212867392U (en) | Foundation reinforcing and repairing device | |
| CN112030661A (en) | Construction method for paving grass planting bricks in landscape gardens | |
| CN111622176A (en) | Water conservancy river course revetment intelligent construction equipment and revetment construction method thereof | |
| CN216787086U (en) | Backfill tamping device | |
| CN115450273A (en) | Town road trimming equipment | |
| CN211113589U (en) | Rammer of adjustable rammer soil area | |
| CN114753341A (en) | Wire pole landfill tamping device | |
| CN114438995A (en) | On-spot solidification weak soil construction site levels equipment | |
| CN113174950B (en) | Construction machine and construction method for house foundation engineering | |
| CN113062309A (en) | Building drilling and pile-filling machine and method | |
| CN114382052B (en) | River course management and construction river course slope protection paving construction device and construction method | |
| CN220704491U (en) | Foundation leveling equipment for constructional engineering | |
| CN220014475U (en) | Building site is with template demolishs device | |
| CN113585762B (en) | Fiber mesh cloth laying construction equipment | |
| CN219175283U (en) | Earthwork roadbed slope trimming device | |
| CN221372131U (en) | Land leveling device | |
| CN217460508U (en) | Foundation leveling device for architectural decoration | |
| CN215629238U (en) | Municipal administration is with quick repair equipment in ground | |
| CN216838870U (en) | Line drawing equipment for earthwork | |
| CN220704413U (en) | Ground leveling device suitable for land remediation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200519 |