CN210011144U - Construction site fence prefabricated foundation - Google Patents

Construction site fence prefabricated foundation Download PDF

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Publication number
CN210011144U
CN210011144U CN201920564433.8U CN201920564433U CN210011144U CN 210011144 U CN210011144 U CN 210011144U CN 201920564433 U CN201920564433 U CN 201920564433U CN 210011144 U CN210011144 U CN 210011144U
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China
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holes
prefabricated
prefabricated section
steel
hoist
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CN201920564433.8U
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张龙洋
田晓航
李斌
李煜麟
陈小飞
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China Construction Second Engineering Bureau Co Ltd
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China Construction Second Engineering Bureau Co Ltd
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Abstract

Building site encloses fender prefabricated basis, prefabricated section including a plurality of blocks connect gradually, two grafting holes have been seted up respectively to the left and right sides face of prefabricated section, the central line of four grafting holes all sets up and on same horizontal plane along controlling the direction level, left two grafting holes correspond about two grafting holes on left and right side respectively, the left side of two left grafting holes is uncovered, the right side of two grafting holes on right side is uncovered, two pairs of mutual symmetry's hoist and mount hole has been seted up respectively to the upper surface of prefabricated section, four hoist and mount holes set up respectively around the upper surface of prefabricated section, the central line of four hoist and mount holes all sets up along vertical direction, the upside of four hoist and mount holes is uncovered, the bottom of four hoist and mount holes communicates with four grafting holes respectively, prefabricated section has a plurality of arrangement of reinforcement in. This building site encloses and keeps off prefabricated basis and need not to abolish after using up, has avoided the production of building solid waste, accords with the requirement of green construction material saving, has practiced thrift construction cost greatly, can have enough to meet the need the utilization.

Description

Construction site fence prefabricated foundation
Technical Field
The utility model relates to a building technical field, specific theory relates to a building site encloses fender prefabricated basis.
Background
The fender basis is enclosed in traditional construction of building site at present adopts cast in situ concrete structure more, waits to enclose to keep off and demolishs the back and encloses the fender basis and also need abolish the processing, can produce building rubbish waste material like this, extravagant material and cost.
In order to solve the above problems, people are always seeking an ideal technical solution.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a building site encloses keeps off prefabricated basis, this building site encloses and need not to break away after keeping off prefabricated basis uses up, has avoided building solid waste's production, accords with the requirement of green construction material-saving, has practiced thrift construction cost greatly, can have enough to meet the need and utilize.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a prefabricated foundation for enclosure in a construction site comprises a plurality of prefabricated blocks which are sequentially connected, each prefabricated block is a cuboid block formed by pouring reinforced concrete and has the same structure, the left side surface and the right side surface of each prefabricated block are respectively provided with two symmetrical splicing holes, the central lines of four splicing holes are horizontally arranged along the left direction and the right direction and are arranged on the same horizontal plane, the two splicing holes on the left side are respectively corresponding to the two splicing holes on the right side in the left-right direction, the left sides of the two splicing holes on the left side are open, the right sides of the two splicing holes on the right side are open, the upper surface of each prefabricated block is respectively provided with two pairs of mutually symmetrical hoisting holes, the four hoisting holes are respectively arranged around the upper surface of each prefabricated block, the central lines of the four hoisting holes are respectively arranged along the vertical direction, the upper sides of the, a plurality of reinforcing bars are prefabricated in the prefabricated blocks.
Each reinforcement is indulged muscle and a plurality of stirrup including five prefabricated in the prefabricated section respectively, the length direction that five indulge the muscle all sets up along controlling the horizontal direction, two are indulged the muscle and are set up anterior and rear portion at the interior upside of prefabricated section respectively, three are indulged the muscle and are set up anterior, middle part and rear portion of downside in the prefabricated section respectively, every stirrup place plane is parallel with the side of prefabricated section, each stirrup is arranged along controlling the direction and is set up in the prefabricated section, every stirrup all overlaps on five are indulged the muscle, the polygon that every stirrup encloses is proportional with the side shape of prefabricated section.
The rear side of the top of the precast block is provided with a slope surface with a high front part and a low rear part.
Adopt above-mentioned technical scheme, the utility model discloses a construction method, including following step: (a) paving a layer of plastic film on a flat concrete ground surface → (b) binding steel bars according to the reinforcement requirement of the precast blocks to form a steel bar cage → (c) pouring molds for installing the precast blocks around the steel bar cage on the plastic film → (d) pouring concrete in the pouring molds → (e) dismantling the pouring molds, taking out the precast blocks → (f) repeating the steps (a) - (e) to continuously manufacture the precast blocks → (g) moisture retention maintenance of the precast blocks for 7 days, putting into use → (h) tamping foundation → (i) positioning and paying-off → (j) transporting and hoisting the precast blocks to the specified position → (k) to install and connect the precast blocks, and manufacturing the site enclosure precast foundation.
The pouring mould comprises two groups of long template assemblies and two groups of short template assemblies, the two groups of long template assemblies are identical in structure and are symmetrically arranged front and back, the two groups of short template assemblies are identical in structure and are symmetrically arranged left and right, the two groups of long template assemblies and the two groups of short template assemblies are connected end to form a vertically through rectangular box template body, and a rectangular pouring cavity is formed in the rectangular box template body; the two groups of short module assemblies are respectively provided with two connecting steel pipes, the two connecting steel pipes are positioned at the same height and are arranged at intervals from front to back, the central line of each connecting steel pipe is horizontally arranged along the left-right direction, the two left connecting steel pipes and the two right connecting steel pipes are in left-right one-to-one correspondence, the right ends of the two left connecting steel pipes and the left ends of the two right connecting steel pipes are respectively sleeved with an L-shaped PVC pipe which is embedded in the prefabricated block, and the four L-shaped PVC pipes are vertically bent upwards;
the long template component on the front side comprises a long steel template, two vertical main square steel back ridges and two horizontal long square steel back ridges, the long steel template is vertically arranged along the left and right directions, the length of the vertical main square steel back ridges is smaller than that of the horizontal long square steel back ridges, the two vertical main square steel back ridges and the two horizontal long square steel back ridges are combined to form a rectangular frame, the front side surface of the long steel template is fixedly connected to the rear side of the rectangular frame, the length of the long steel template in the left and right horizontal directions is equal to that of the rectangular frame, the left side surface of the left vertical main square steel back ridge and the right side surface of the right vertical main square steel back ridge are both connected with a first vertical angle steel, one first vertical angle steel side plate is attached to and fixedly connected with the vertical main square steel back ridge, the other first vertical angle steel side plate is flush with the rear side surface of the long steel template, and a plurality of first connecting holes which are through from front to back are formed in the side plate;
the left short template component comprises a short steel template and two horizontal short square steel back ridges, the short steel template is vertically arranged along the front-back direction, the two horizontal short square steel back ridges are horizontally arranged along the front-back direction, the two horizontal short square steel back ridges are arranged side by side up and down, the upper side and the lower side of the left side of the short steel template are respectively fixedly connected with the right side of the two horizontal short square steel back ridges, the length of the short steel template in the front-back horizontal direction is equal to that of the horizontal short square steel back ridges, the upper side of the short steel template is flush with the upper side of the long steel template, the lower side of the short steel template is flush with the lower side of the long steel template, the front side of the short steel template is in contact with the back side of the long steel template at the front side in an attaching manner, the back side of the short steel template is in contact with the front side of the long steel template at the back side in an attaching manner, the left side and the right side of the horizontal short square steel back ridges are respectively flush with the left side and the, the front side part and the rear side part of the left side surface of each horizontal short square steel back edge are symmetrically connected with a second vertical angle steel, one side plate of the second vertical angle steel at the front side is attached to and fixedly connected with the front side part of the left side surface of each horizontal short square steel back edge, the other side plate of the second vertical angle steel at the front side is flush with the rear side surface of the long steel template at the front side, and a plurality of second connecting holes which are through from front to back are formed in the side plate;
the first connecting holes in the two first vertical angle steels on the front side correspond to the second connecting holes in the two second vertical angle steels on the front side one by one in a front-back mode and are in through connection through fastening bolts;
two left connection steel pipe fixed connection are on left short steel template, and two connection steel pipe fixed connection on right side are on the short steel template on right side, and the left end of two left connection steel pipes flushes with the left surface of left short steel template, and the right-hand member of two connection steel pipes on right side flushes with the right flank of the short steel template on right side, and the intracavity is pour to the rectangle that all stretches into to the right-hand member of two left connection steel pipes and the left end of two connection steel pipes on right side.
The upper part of the front side of the long formwork component on the rear side is also connected with a horizontal angle steel, the horizontal angle steel is horizontally arranged along the left-right direction, the horizontal angle steel comprises a horizontal side plate and a vertical side plate, the horizontal side plate is positioned on the front upper side of the vertical side plate, the rear side surface of the vertical side plate is connected with the upper side of the front side surface of the long formwork on the rear side, the left side edge and the right side edge of the horizontal side plate and the vertical side plate are respectively connected onto the two short steel formworks, and an inclined steel plate which is high in front and low in back is connected between the front side;
middle part and two horizontal rectangular steel of rear side between two horizontal rectangular steel back of the body arriss of front side all are connected with a vertical inferior square steel back of the body stupefied, the vertical inferior square steel back of the body stupefied trailing flank of front side is located the front side of the long steel form of front side, the vertical inferior square steel back of the body stupefied leading flank of rear side is located the rear side of the long steel form of rear side, penetrating pair draw screw rod hole around two vertical inferior square steel back of the body stupefied middle parts have all been seted up one, a screw rod perforation has all been seted up at the middle part of two long steel form, two correspond around penetrating with two screw rod perforations.
The step (c) is specifically as follows: two groups of long template components and two groups of short template components are connected end to end around a reinforcement cage on a plastic film to form a vertically through rectangular box plate body, first connecting holes on two first vertical angle steels on the front side and second connecting holes on two second vertical angle steels on the front side correspond to each other in a front-back mode and are in through connection through fastening bolts, first connecting holes on two first vertical angle steels on the rear side and second connecting holes on two second vertical angle steels on the rear side correspond to each other in a front-back mode and are in through connection through fastening bolts, an M14 counter-pull screw rod is connected between two counter-pull screw rod holes in a penetrating mode, an M14 counter-pull screw rod penetrates through the two screw rod holes, two ends of the M14 counter-pull screw rod are connected to front-back two vertical square steel back edges and rear edges, the rigidity of the middle parts of the two long steel templates is ensured, the two long steel templates are prevented from being bent and deformed, and the rectangular box plate body, then sleeving an L-shaped PVC pipe on each connecting steel pipe;
the step (e) is specifically as follows: after the concrete is solidified for a certain time, coating a release agent on the joints of the side surfaces of the concrete block and each long steel template and each short steel template, then removing each fastening bolt, and respectively removing the two groups of long template components and the two groups of short template components, thereby taking out the precast block.
The step (h) is specifically as follows: the foundation soil below the enclosure foundation of the construction site is tamped by using a tamping machine, the filling needs to be changed when the soil quality is poor, a C20 plain concrete cushion layer with the thickness of 100mm is constructed and paved on the foundation soil, and the cushion layer is collected by using a mechanical polishing machine, so that the flatness deviation is ensured to be within +/-5 mm.
The step (i) is specifically: positioning and paying off the C20 plain concrete cushion layer according to the position of the pre-planned enclosure stand column, thereby determining the installation position of each prefabricated block and ensuring that the central line of each prefabricated block is superposed with the central line of each enclosure stand column;
the step (j) is specifically: four steel wire ropes of M12 are used for respectively penetrating through the splicing holes and the hoisting holes formed by the pre-buried 4L-shaped PVC pipes in each prefabricated block, a small hoisting machine is used for towing the four steel wire ropes of M12, so that each prefabricated block is hoisted to the position of each prefabricated block determined by positioning and paying-off, each prefabricated block is moved in a manual matching mode in the hoisting process, and each prefabricated block is correctly placed.
The step (k) is specifically: sequentially installing and placing precast blocks from left to right from the left end of the straight wall enclosure, placing the precast blocks at positions determined by positioning and paying off on a C20 plain concrete cushion layer, respectively inserting an inserting steel pipe into two inserting holes on the left side surface of each precast block when one precast block is installed and placed, then installing the next precast block, respectively inserting the left ends of the two inserting steel pipes on the left side surface of the previous precast block into two inserting holes on the right side surface of the next precast block, and continuously installing and placing each precast block until the right end of the straight wall enclosure; for the enclosure at the corner, the prefabricated block of the corner is also customized according to the technical principle, or two prefabricated blocks at two ends of the corner of the two splicing bent pipes are customized; after the construction site enclosure foundation is installed, the lower end of the enclosure upright post is fixedly installed at the top center of the precast block by using an M12 expansion bolt.
To sum up, the utility model discloses relative prior art has substantive characteristics and progress, specifically speaking, the utility model discloses a building site encloses and keeps off prefabricated basis and connects gradually through the grafting steel pipe by a plurality of prefabricated blocks and forms, and each prefabricated block is the rectangular body block that reinforced concrete poured and form, forms grafting hole and hoist and mount hole through prefabricated L type PVC pipe in the prefabricated block, conveniently hoist and mount and remove and install each prefabricated block of pegging graft, and the prefabricated block can have enough to meet the need the utilization many times, encloses to keep off and demolish the back, directly utilizes the hoist and mount machine to hang away each prefabricated block, need not to break the prefabricated block structure, has avoided the production of building solid waste material, accords with the requirement of green construction festival material, has practiced thrift construction cost greatly.
Slope on the prefabricated section is towards the road surface, and similar road side curb's effect protects the pedestrian current, avoids the oblique angle sharp-pointed and fish tail pedestrian.
This building site encloses fender basis is applicable to and encloses the multiple that keeps off the stand interval and be 1 meter, encloses to keep off the height and is less than or equal to 2.5 meters, encloses to keep off the whole assembled steel construction that is the linear type and encloses fender or various steel sheet and enclose fender and PVC and enclose fender etc..
The utility model discloses a pouring mould assembles and dismantles simply according to the structural design of this prefabricated section, can the mass preparation prefabricated section.
Drawings
Fig. 1 is a schematic structural diagram of the precast block of the present invention.
Fig. 2 is a schematic cross-sectional view of the precast block of the present invention.
Fig. 3 is a schematic structural diagram of the die for manufacturing the precast block of the present invention when the L-shaped PVC pipe is not installed.
Fig. 4 is a top view of the mold of fig. 3.
Fig. 5 is a front view of the mold of fig. 3.
Fig. 6 is a right side view of the mold of fig. 3.
Fig. 7 is a schematic structural diagram of the die for manufacturing the precast block of the present invention when the L-shaped PVC pipe is installed.
Detailed Description
The embodiments of the present invention will be further explained with reference to the drawings.
As shown in fig. 1-7, the construction site enclosure prefabricated foundation comprises a plurality of prefabricated blocks 1 connected in sequence, each prefabricated block 1 is a cuboid block formed by pouring reinforced concrete and has the same structure, the left side surface and the right side surface of the prefabricated block 1 are respectively provided with two symmetrical splicing holes 2, the central lines of the four splicing holes 2 are horizontally arranged along the left-right direction and are positioned on the same horizontal plane, the two splicing holes 2 on the left side are respectively corresponding to the two splicing holes 2 on the right side, the left side of the two splicing holes 2 on the left side is open, the right side of the two splicing holes 2 on the right side is open, the upper surface of the prefabricated block 1 is respectively provided with two pairs of symmetrical hoisting holes 3, the four hoisting holes 3 are respectively arranged around the upper surface of the prefabricated block 1, the central lines of the four hoisting holes 3 are arranged along the vertical direction, and the upper sides of, the lower ports of the four hoisting holes 3 are respectively communicated with the four splicing holes 2, and a plurality of reinforcing bars are prefabricated in the prefabricated block 1.
Each arrangement of reinforcement is respectively including prefabricating five longitudinal bars 4 and a plurality of stirrup 5 in prefabricated section 1, the length direction that five longitudinal bars 4 all sets up along controlling the horizontal direction, two longitudinal bars 4 set up respectively at the anterior portion and the rear portion of prefabricated section 1 interior upside, three longitudinal bars 4 set up respectively at the anterior portion of prefabricated section 1 interior downside, middle part and rear portion, every stirrup 5 is on the plane parallel with the side of prefabricated section 1, each stirrup 5 is arranged along controlling the direction and is set up in prefabricated section 1, every stirrup 5 all overlaps on five longitudinal bars 4, the polygon that every stirrup 5 encloses is proportional to the side shape of prefabricated section 1.
The rear side of the top of the precast block 1 is provided with a slope surface 6 with a high front part and a low rear part. Slope 6 is towards the road surface, and similar road side curb's effect protects the pedestrian current, avoids the oblique angle sharp-pointed and fish tail pedestrian.
Adopt above-mentioned technical scheme, the utility model discloses a construction method, including following step: (a) paving a layer of plastic film on a flat concrete ground surface → (b) binding steel bars according to the reinforcement requirement of the precast block 1 to form a steel bar cage → (c) installing a casting mould of the precast block 1 around the steel bar cage on the plastic film → (d) casting concrete in the casting mould → (e) dismantling the casting mould, taking out the precast block 1 → (f) repeating the steps (a) - (e) to continue manufacturing the precast blocks 1 of a plurality of blocks → (g) continuing to carry out moisture preservation and maintenance of the precast block 1 for 7 days → (h) tamping foundation → (i) positioning and paying-off → (j) transporting and hoisting each precast block 1 to a specified position → (k) and installing and connecting each precast block 1, thus manufacturing the construction site enclosure precast foundation.
The pouring mould comprises two groups of long template assemblies and two groups of short template assemblies, the two groups of long template assemblies are identical in structure and are symmetrically arranged front and back, the two groups of short template assemblies are identical in structure and are symmetrically arranged left and right, the two groups of long template assemblies and the two groups of short template assemblies are connected end to form a vertically through rectangular box template body, and a rectangular pouring cavity is formed in the rectangular box template body; two connecting steel pipes 14 are arranged on the two groups of short formwork assemblies, the two connecting steel pipes 14 are positioned at the same height and are arranged at intervals from front to back, the central line of each connecting steel pipe 14 is horizontally arranged along the left-right direction, the two connecting steel pipes 14 on the left side correspond to the two connecting steel pipes 14 on the right side one by one in the left-right direction, the L-shaped PVC pipes 15 which are embedded in the precast block 1 are sleeved at the right ends of the two connecting steel pipes 14 on the left side and the left ends of the two connecting steel pipes 14 on the right side, and the four L-shaped PVC pipes 15 are bent upwards;
the long template component on the front side comprises a long steel template 7, two vertical main square steel back ridges 8 and two horizontal main square steel back ridges 9, the long steel template 7 is vertically arranged along the left and right direction, the length of the vertical main square steel back ridges 8 is smaller than that of the horizontal main square steel back ridges 9, the two vertical main square steel back ridges 8 and the two horizontal main square steel back ridges 9 are enclosed into a rectangular frame, the front side surface of the long steel template 7 is fixedly connected with the rear side of the rectangular frame, the length of the long steel template 7 in the left-right horizontal direction is equal to that of the rectangular frame, the left side surface of the left vertical main square steel back edge 8 and the right side surface of the right vertical main square steel back edge 8 are both connected with a first vertical angle steel 10, one side plate of the first vertical angle steel 10 is attached to and fixedly connected with the vertical main square steel back edge 8, the other side plate of the first vertical angle steel 10 is flush with the rear side surface of the long steel template 7, and a plurality of front-rear through first connecting holes 16 are formed in the side plate;
the left short formwork component comprises a short steel formwork 11 and two horizontal short square steel back ridges 12, the short steel formwork 11 is vertically arranged along the front-back direction, the two horizontal short square steel back ridges 12 are horizontally arranged along the front-back direction, the two horizontal short square steel back ridges 12 are arranged side by side up and down, the upper side and the lower side of the left side of the short steel formwork 11 are respectively fixedly connected with the right side of the two horizontal short square steel back ridges 12, the length of the short steel formwork 11 in the front-back horizontal direction is equal to that of the horizontal short square steel back ridges 12, the upper side of the short steel formwork 11 is flush with the upper side of the long steel formwork 7, the lower side of the short steel formwork 11 is flush with the lower side of the long steel formwork 7, the front side of the short steel formwork 11 is in contact with the rear side of the long steel formwork 7 in the front side in the laminating manner, the rear side of the short steel formwork 11 is in contact with the front side of the long steel formwork 7 in the rear side in the laminating manner, the left side and the right side of the horizontal short square steel back ridges 12 are respectively flush with the left side and the right, the front side part and the rear side part of the left side surfaces of the two horizontal short square steel back ridges 12 are symmetrically connected with a second vertical angle steel 13, one side plate of the second vertical angle steel 13 at the front side is attached to and fixedly connected with the front side part of the left side surface of the two horizontal short square steel back ridges 12, the other side plate of the second vertical angle steel 13 at the front side is flush with the rear side surface of the long steel template 7 at the front side, and a plurality of second connecting holes 24 which are through from front to back are formed in the side plate;
the first connecting holes 16 on the two first vertical angle steels 10 on the front side correspond to the second connecting holes 24 on the two second vertical angle steels 13 on the front side one by one in the front-back direction and are connected in a penetrating manner through fastening bolts, and the first connecting holes 16 on the two first vertical angle steels 10 on the rear side correspond to the second connecting holes 24 on the two second vertical angle steels 13 on the rear side one by one in the front-back direction and are connected in a penetrating manner through fastening bolts;
the two left connecting steel pipes 14 are fixedly connected to the left short steel formwork 11, the two right connecting steel pipes 14 are fixedly connected to the right short steel formwork 11, the left ends of the two left connecting steel pipes 14 are flush with the left side face of the left short steel formwork 11, the right ends of the two right connecting steel pipes 14 are flush with the right side face of the right short steel formwork 11, and the right ends of the two left connecting steel pipes 14 and the left ends of the two right connecting steel pipes 14 extend into the rectangular pouring cavity.
The upper part of the front side of the long formwork component on the rear side is also connected with a horizontal angle steel 17, the horizontal angle steel 17 is horizontally arranged along the left-right direction, the horizontal angle steel 17 comprises a horizontal side plate 18 and a vertical side plate 19, the horizontal side plate 18 is positioned on the front upper side of the vertical side plate 19, the rear side surface of the vertical side plate 19 is connected with the upper side of the front side surface of the long formwork 7 on the rear side, the left side and the right side edges of the horizontal side plate 18 and the vertical side plate 19 are respectively connected to the two short formwork 11, and an inclined steel plate 20 with a high front part and a low rear part is connected between the front side edge of the horizontal side;
middle part and rear side between two horizontal rectangular steel back of the body stupefied 9 of two horizontal rectangular steel backs of front side middle part and rear side all are connected with a vertical inferior square steel back of the body stupefied 21 between the stupefied 9 of two horizontal rectangular steel backs of front side, the trailing flank of the vertical inferior square steel back of the body stupefied 21 of front side is located the front side of the long steel form 7 of front side, the leading flank of the vertical inferior square steel back of the body stupefied 21 of rear side is located the rear side of the long steel form 7 of rear side, penetrating screw rod hole 22 to drawing around two vertical inferior square steel back of the body stupefied 21's middle part has all been seted up one screw rod perforation 23, two screw rod perforation holes 22 and two screw rod perforation 23 correspond around being equal.
The step (c) is specifically as follows: two groups of long formwork components and two groups of short formwork components are connected end to end around a steel reinforcement cage on a plastic film to form a through rectangular box plate body, first connecting holes 16 on two first vertical angle steels 10 on the front side and second connecting holes 24 on two second vertical angle steels 13 on the front side correspond to each other in a front-back mode and are in through connection through fastening bolts, first connecting holes 16 on two first vertical angle steels 10 on the rear side and second connecting holes 24 on two second vertical angle steels 13 on the rear side correspond to each other in a front-back mode and are in through connection through fastening bolts, an M14 counter-pulling screw rod is in through connection between two counter-pulling screw rod holes 22, the M14 counter-pulling screw rod penetrates through two screw rod through holes 23, two ends of the M14 counter-pulling screw rod are connected to front-back edges 21 and rear-back edges of two vertical square steels, the rigidity of the middle parts of two long steel formworks 7 is ensured, and the two long steel formworks 7 are prevented from, so that the rectangular box plate structure is stable, and then an L-shaped PVC pipe 15 is sleeved on each connecting steel pipe 14;
the step (e) is specifically as follows: after the concrete is solidified for a certain time, coating a release agent on the joints of the side surfaces of the concrete blocks, the long steel templates 7 and the short steel templates 11, then removing the fastening bolts, and respectively removing the two groups of long template assemblies and the two groups of short template assemblies, thereby taking out the precast block 1.
The step (h) is specifically as follows: the foundation soil below the enclosure foundation of the construction site is tamped by using a tamping machine, the filling needs to be changed when the soil quality is poor, a C20 plain concrete cushion layer with the thickness of 100mm is constructed and paved on the foundation soil, and the cushion layer is collected by using a mechanical polishing machine, so that the flatness deviation is ensured to be within +/-5 mm.
The step (i) is specifically: positioning and paying off the C20 plain concrete cushion layer according to the position of the pre-planned enclosure stand column, thereby determining the installation position of each prefabricated block 1 and ensuring that the central line of each prefabricated block 1 is superposed with the central line of each enclosure stand column;
the step (j) is specifically: transport a plurality of prefabricated pieces 1 that make to the building site job site through the vehicle, use four M12's wire rope to pass grafting hole 2 and hoist and mount hole 3 that are formed by 4 pre-buried L type PVC pipes 15 in each prefabricated piece 1 respectively, utilize small-size hoisting machine to pull four M12's wire rope, thereby hoist each prefabricated piece 1 to the position of each prefabricated piece 1 that the location unwrapping wire was confirmed, each prefabricated piece 1 is removed in the manual work cooperation of hoist and mount in-process, make each prefabricated piece 1 place correctly.
The step (k) is specifically: the method comprises the following steps that prefabricated blocks 1 are sequentially installed and placed from left to right from the left end of a straight wall enclosure, the prefabricated blocks 1 are placed at positions determined by positioning and paying off on a C20 plain concrete cushion layer, each prefabricated block 1 is installed and placed, one splicing steel pipe is inserted into each of two splicing holes 2 in the left side face of each prefabricated block 1, then the next prefabricated block 1 is installed, the left ends of the two splicing steel pipes in the left side face of the previous prefabricated block 1 are respectively inserted into the two splicing holes 2 in the right side face of the next prefabricated block 1, and the prefabricated blocks 1 are continuously installed and placed until the right end of the straight wall enclosure; for the enclosure at the corner, the corner-shaped precast block 1 is also customized according to the technical principle, or two precast blocks 1 at two ends of the corner of the two splicing bent pipes are customized; after the foundation of the fence is installed on the construction site, the lower end of the fence upright post is fixedly installed at the top center of the precast block 1 by using an M12 expansion bolt.
The above embodiments are only used for illustrating but not limiting the technical solution of the present invention, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that; the present invention may be modified or substituted with equivalents without departing from the spirit and scope of the invention, which should be construed as being limited only by the claims.

Claims (3)

1. Building site encloses fender prefabricated basis, its characterized in that: including the prefabricated section that a plurality of blocks connect gradually, each prefabricated section is the rectangular block that reinforced concrete poured and form and the structure is the same, two grafting holes of mutual symmetry are seted up respectively to the left and right sides face of prefabricated section, the central line of four grafting holes all sets up and on same horizontal plane along left right direction level, correspond about two grafting holes on left and right sides respectively with two grafting holes on right side, the left side of two left grafting holes is uncovered, the right side of two grafting holes on right side is uncovered, two pairs of hoist and mount holes of mutual symmetry are seted up respectively to the upper surface of prefabricated section, four hoist and mount holes set up respectively around the upper surface of prefabricated section, the central line of four hoist and mount holes all sets up along vertical direction, the upside of four hoist and mount holes is uncovered, the lower port of four hoist and mount holes communicates with four grafting holes respectively, prefabricated section has a plurality of.
2. The site fence prefabricated foundation of claim 1, wherein: each reinforcement is indulged muscle and a plurality of stirrup including five prefabricated in the prefabricated section respectively, the length direction that five indulge the muscle all sets up along controlling the horizontal direction, two are indulged the muscle and are set up anterior and rear portion at the interior upside of prefabricated section respectively, three are indulged the muscle and are set up anterior, middle part and rear portion of downside in the prefabricated section respectively, every stirrup place plane is parallel with the side of prefabricated section, each stirrup is arranged along controlling the direction and is set up in the prefabricated section, every stirrup all overlaps on five are indulged the muscle, the polygon that every stirrup encloses is proportional with the side shape of prefabricated section.
3. The site fence prefabricated foundation of claim 2, wherein: the rear side of the top of the precast block is provided with a slope surface with a high front part and a low rear part.
CN201920564433.8U 2019-04-24 2019-04-24 Construction site fence prefabricated foundation Active CN210011144U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110076877A (en) * 2019-04-24 2019-08-02 中建二局第二建筑工程有限公司 Building site enclosing prefabricated foundation and its construction method
CN110076877B (en) * 2019-04-24 2024-04-09 中建二局第二建筑工程有限公司 Prefabricated foundation for construction site fence and construction method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110076877A (en) * 2019-04-24 2019-08-02 中建二局第二建筑工程有限公司 Building site enclosing prefabricated foundation and its construction method
CN110076877B (en) * 2019-04-24 2024-04-09 中建二局第二建筑工程有限公司 Prefabricated foundation for construction site fence and construction method thereof

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