CN111519652A - Construction method of equipment foundation bolt preformed hole and application structure thereof - Google Patents
Construction method of equipment foundation bolt preformed hole and application structure thereof Download PDFInfo
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- CN111519652A CN111519652A CN202010516593.2A CN202010516593A CN111519652A CN 111519652 A CN111519652 A CN 111519652A CN 202010516593 A CN202010516593 A CN 202010516593A CN 111519652 A CN111519652 A CN 111519652A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
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- E02D27/44—Foundations for machines, engines or ordnance
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Abstract
The invention discloses a construction method of a device foundation bolt preformed hole and an application structure thereof, relating to the technical field of petrochemical engineering construction; the construction method comprises a preparation process of the threaded rod and the threaded rod fixing frame and a construction process of applying the threaded rod, wherein the construction process of applying the threaded rod comprises the steps of arranging the threaded rod, fixing the threaded rod, adjusting the embedded depth of the threaded rod, checking the threaded rod, carrying out surface wetting treatment on the threaded rod, pouring concrete on an equipment foundation, taking out the threaded rod, and cleaning a reserved hole of an anchor bolt; through implementing this technical scheme, use the screw rod to come construction equipment basis rag bolt preformed hole to overcome traditional construction method and adopt interim plank sheathing supporting method to have the technical defect that the installation is inconvenient, demolish the destructiveness big and the shaping quality is poor, adopt screw rod construction method simple swift, the material selection is extensive, the easy acquisition, safe and reliable in construction is used, the shaping is of high quality, the screw rod after once being under construction the completion can also used repeatedly, practices thrift the cost.
Description
Technical Field
The invention relates to the technical field of petrochemical engineering construction, in particular to a construction method of a foundation bolt preformed hole of an equipment foundation and an application structure thereof.
Background
In the construction of petrochemical engineering projects, a large number of equipment foundations (civil engineering) need to be constructed, and equipment foundation bolt holes need to be reserved generally in the construction of concrete foundations. The traditional construction method comprises the following steps: and (3) making a foundation bolt preformed hole mould by using a wooden template on site, pre-embedding before concrete pouring, and breaking and taking out after the concrete is solidified.
However, in the process of implementing the embodiment of the present invention, the inventor of the present application finds that the conventional construction method has at least the following technical problems: the foundation bolt preformed holes of the equipment are large in number, a wooden preformed hole die needs to be manufactured independently for each preformed hole, and auxiliary workload is large; secondly, the bolt preformed hole mold needs to be destructively disassembled when taken out, the disassembling workload is large, and the mold cannot be reused; due to the fact that the on-site temporary customized molds are uneven, the size and the depth of the foundation bolt hole after construction forming are not standard, the quality is different, and the forming quality is poor.
Disclosure of Invention
In view of the technical problems, the invention aims to provide a construction method for a foundation bolt preformed hole of an equipment foundation, which aims to apply a threaded rod to construct the foundation bolt preformed hole of the equipment foundation so as to overcome the technical defects of inconvenient installation, high demolition destructiveness and poor forming quality of a temporary wood formwork supporting method adopted in the traditional construction method.
The technical scheme adopted by the invention is as follows:
a construction method of a reserved hole of an equipment foundation bolt comprises the following steps:
step one, a preparation process of a threaded rod and a threaded rod fixing frame: selecting parameters of a threaded rod, namely selecting the size parameters of the threaded rod including the hole diameter and the depth according to the type of a reserved hole of a prefabricated bolt; selecting a threaded rod fixing frame matched with the threaded rod according to the size parameter of the threaded rod;
step two, applying a construction process of the threaded rod:
step S1, arranging a threaded rod: arranging threaded rods according to the positions and the number of reserved holes of foundation bolts of the equipment foundation in a foundation diagram of civil engineering equipment, wherein one threaded rod corresponds to one reserved hole of each foundation bolt;
step S2, fixing the screw: fixing the threaded rods by utilizing a threaded rod fixing frame according to the positions of the reserved holes of the foundation bolts so as to fix the threaded rods in rows or fix the threaded rods singly;
step S3, adjusting the pre-buried depth of the threaded rod: adjusting the pre-buried depth of the threaded rod according to the depth of the reserved hole of the foundation bolt;
step S4, checking the threaded rod: after the arrangement of the threaded rods, one-time comprehensive inspection is required: checking whether the position, the number, the verticality and the pre-buried depth of the threaded rods meet the requirements or not;
step S5, surface wetting treatment of the threaded rod: before concrete pouring, wetting the outer surfaces of all the threaded rods by using water so as to take out the threaded rods conveniently;
step S6, pouring concrete on the equipment foundation;
step S7, taking out the screw: when the poured concrete is in initial setting, taking out the threaded rod in a manner of rotating the threaded rod; after the concrete is slowly solidified, the reserved hole of the foundation bolt is solidified to form;
step S8, cleaning a reserved hole of the foundation bolt: and after the threaded rod is taken out, checking and cleaning concrete falling in the reserved hole of the foundation bolt, and then sealing the hole for the next working procedure.
As preferred scheme, in step one, select the screw thread stick has dextrorotation trapezoidal thread, the screw thread stick mount have with the internal thread hole of dextrorotation trapezoidal thread looks adaptation to make the screw thread stick follow the internal thread hole clockwise rotation of screw thread stick mount be the screw in, the screw thread stick is rotatory for taking out along the internal thread hole anticlockwise of screw thread stick mount, the installation of the screw thread stick of being convenient for and taking out, and the screw thread stick adopts dextrorotation trapezoidal thread to be connected with the cooperation of screw thread stick mount, better connection stability and reliability have in the work progress, so equipment basis rag bolt preformed hole shaping is effectual.
As a preferred scheme, the selected parameters of the threaded rod are as follows:
the outer diameter of the thread is D1, and D1 is (D +38) mm, wherein D is the diameter of a reserved hole of the prefabricated bolt;
the pitch diameter of the thread is D2, and D2 is (D +8) mm;
the thread height is h1, and h1 is 15 mm;
the lead angle is phi, and phi is 8.15 degrees;
the pitch is P, and P is 40 mm;
the length of the threaded rod is H, and H is (H +220) mm; wherein h is the depth of the reserved hole of the prefabricated bolt.
Preferably, the second step of the construction process of the threaded rod is applied to a formwork supporting link in the construction of an equipment foundation, and the method comprises the steps of S1 to S8, and further comprises the step of S9, cleaning the threaded rod: the threaded rod after taking out is cleaned up, so that the threaded rod can be repeatedly used for construction next time, construction of the reserved hole of the foundation bolt of the equipment foundation can be carried out by repeatedly utilizing the threaded rod, the construction period is shortened, the construction cost is saved, and meanwhile, the forming quality of the reserved hole of the foundation bolt of the equipment foundation can be effectively guaranteed.
Preferably, the threaded rod is fixed in step S2, the threaded rod fixing frame is firstly supported on the temporary steel bar or the batten, the iron wire is used to tie up two ends of the threaded rod fixing frame, and then the threaded rod is screwed into the internal threaded hole reserved on the threaded rod fixing frame.
Preferably, in the step S3, the pre-buried depth of the threaded rod is adjusted, so that the threaded rod is rotated clockwise to adjust the pre-buried depth according to the scale value set on the threaded rod, and the threaded rod is rotated counterclockwise to adjust the pre-buried depth.
On the other hand, the invention also provides an application structure of the foundation bolt preformed hole of the equipment foundation, which is applied to the construction method of the foundation bolt preformed hole of the equipment foundation and comprises a threaded rod and a threaded rod fixing frame; wherein
The outer diameter of the threaded rod is not smaller than the diameter of the bolt preformed hole, and the length of the threaded rod is larger than the depth of the bolt preformed hole;
the threaded rod fixing frame comprises a fixing portion and extending portions, wherein the extending portions are arranged at two ends of the fixing portion and symmetrically arranged about the fixing portion, the thickness of the fixing portion is larger than that of the extending portions, and an internal thread hole matched with the threaded rod is formed in the thickness direction of the fixing portion.
Preferably, the threaded rod is arranged in a hollow mode, and the bottom of the threaded rod is provided with an exhaust hole communicated with the atmosphere. So at the in-process of taking out the screw thread stick, can effectively utilize in the balanced rag bolt of exhaust hole reserved hole with external atmospheric pressure, avoid causing the negative pressure and be difficult to the problem of taking out the screw thread stick, this structural design is ingenious reasonable.
Preferably, the upper end of the threaded rod is provided with a screwing-out insertion hole, so that the threaded rod can be inserted into the screwing-out insertion hole through a steel bar or other structural members, and can be taken out through the screwing-out insertion hole, and the threaded rod can be taken out conveniently.
Preferably, the material of the threaded rod is selected from one of plastic, carbon steel or stainless steel, wherein the threaded rod made of the plastic material is low in cost, but the carbon steel or the stainless steel is more durable in construction and is selected according to a specific construction process.
As described above, the present invention has at least the following advantages over the prior art:
1. the construction method of the foundation bolt preformed hole of the equipment foundation can effectively overcome the technical defects of inconvenient installation, large demolition destructiveness and poor forming quality of a temporary wood formwork supporting method adopted in a traditional construction method, has simple and quick process operation, can effectively improve the construction progress, applies the threaded rod to construct the foundation bolt preformed hole of the equipment foundation, can effectively avoid destructive demolition when the threaded rod is taken out, and has good forming quality of the bolt preformed hole.
2. The threaded rod is provided with the threaded rod fixing frame, the structure is simple, the material selection is wide, the acquisition is easy, the threaded rod and the threaded rod fixing frame are in threaded fit connection, the mounting position is accurate, the verticality of the threaded rod and the threaded rod fixing frame can be effectively guaranteed, the connection stability and the reliability are better in the construction process, and therefore the forming quality of the foundation bolt preformed hole of the equipment foundation is further improved.
3. In the construction process applying the threaded rod, the surface of the threaded rod is subjected to wetting treatment before the threaded rod is taken out, so that the outer surface of the threaded rod and the concrete at the initial setting stage have a lubricating effect, the threaded rod can be conveniently taken out in a manner of rotating the threaded rod, and the forming quality of the foundation bolt preformed hole of the equipment foundation is further ensured.
4. The application structure of the foundation bolt preformed hole of the equipment foundation can be repeatedly used after the construction is finished, the utilization rate is high, the construction cost can be obviously saved, the physical dimensions of all the preformed holes meet the design requirements after rechecking, and the foundation bolt preformed hole of the equipment foundation manufactured by the construction method has high hole forming quality and is clean in the hole.
In conclusion, the method for constructing the foundation bolt of the deep-type rotary trapezoidal-shaped equipment adopts the threaded rod to replace a wood mold, can overcome the defects in the traditional construction method, can greatly save construction materials and labor cost in an engineering field, reduce repetitive labor, improve working efficiency, and can manufacture the foundation bolt preformed hole of the deep-type rotary trapezoidal-shaped equipment as required, and the threaded rod used for construction has the advantages of simple structure, wide material selection, easy obtaining and the like; more importantly, the application structure can not cause destructive demolition in construction application, and has the advantages of safety, reliability, simple and rapid operation method, good molding quality, better effect after secondary grouting and the like; after the construction is finished, the threaded rod can be reused, the engineering market demand is large, the popularization is strong, and a better economic value can be created, so that the construction cost of enterprises is remarkably saved, and the application prospect and the popularization and use value are good.
Drawings
The invention will be described by way of specific embodiments and with reference to the accompanying drawings, in which
FIG. 1 is a schematic illustration of an installation of an application structure of a prepared hole of an foundation bolt of an exemplary apparatus of the present invention;
FIG. 2 is a schematic diagram of an application structure of a prepared hole of an foundation bolt of an exemplary apparatus of the present invention;
FIG. 3 is a schematic view of the threaded rod of FIG. 2 in an exemplary embodiment of the present invention;
fig. 4 is a schematic view of the threaded rod fixture of fig. 2 in an exemplary embodiment of the present invention.
Description of reference numerals: 1-a threaded rod; 11-an exhaust hole; 12-screwing out the jack; 2-a threaded rod fixing frame; 21-a fixed part; 22-an extension; 23-an internally threaded hole; 3-temporary reinforcing steel bars; 4-template; 5-a base surface; 6-concrete.
Detailed Description
All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.
Any feature disclosed in this specification (including any accompanying claims, abstract) may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.
The embodiment is basically as shown in figure 1: the embodiment provides a construction method of a reserved hole of an equipment foundation bolt, which is applied to a formwork supporting link in equipment foundation construction; the construction method comprises the following steps:
step one, a preparation process of a threaded rod and a threaded rod fixing frame: selecting parameters of a threaded rod, namely selecting the size parameters of the threaded rod 1 including the hole diameter and the depth according to the type of a reserved hole of a prefabricated bolt; selecting a threaded rod fixing frame 2 matched with the threaded rod 1 according to the size parameters of the threaded rod 1; as the optimization of the embodiment, the threaded rod 1 selected in the embodiment has right-handed trapezoidal threads, the threaded rod fixing frame 2 has an internal thread hole 23 matched with the right-handed trapezoidal threads, so that the threaded rod 1 rotates clockwise along the internal thread hole 23 of the threaded rod fixing frame 2 to be screwed in, the threaded rod 1 rotates anticlockwise along the internal thread hole 23 of the threaded rod fixing frame 2 to be taken out, the threaded rod 1 is convenient to mount and take out, the threaded rod 1 is matched and connected with the threaded rod fixing frame 2 through the right-handed trapezoidal threads, and the connection stability and reliability are better in the construction process, so that the forming effect of the foundation bolt reserved hole of the equipment is good;
further, the selected parameters of the threaded rod 1 are as follows:
the outer diameter of the thread is D1, and D1 is (D +38) mm, wherein D is the diameter of a reserved hole of the prefabricated bolt;
the pitch diameter of the thread is D2, and D2 is (D +8) mm;
the thread height is h1, and h1 is 15 mm;
the lead angle is phi, and phi is 8.15 degrees;
the pitch is P, and P is 40 mm;
the length of the threaded rod 1 is H, and H is (H +220) mm; h is the depth of a reserved hole of the prefabricated bolt;
from the above, the size parameters of the threaded rod 1 are selected according to the size and the depth of the reserved bolt hole, wherein the inner diameter of the threaded rod 1 is not smaller than the diameter of the reserved bolt hole, and the length of the threaded rod 1 is larger than the hole depth of the reserved bolt hole; the prepared equipment foundation bolt preformed hole is a deep rotary trapezoid-shaped preformed hole, and the hole forming effect is good;
the dimensions of the threaded rod 1 provided in this example were selected as follows: selecting the prefabricated equipment foundation bolt according to the diameter of a prepared hole of 100mm and the depth of the hole of 400mm, selecting a threaded rod 1 with the length of 620mm, matching the threaded rod 1 with a threaded rod fixing frame 2, and forming an internal threaded hole 23 matched with a right-handed trapezoidal thread on the threaded rod 1 on the threaded rod fixing frame 2; the structure and parameters of the threaded rod 1 selected in the embodiment are shown in fig. 2:
thread outside diameter: d1 ═ 138 mm;
pitch diameter of the thread: d2 ═ 108 mm;
thread internal diameter: d3 is 100 mm;
height of the thread: h1 ═ 15 mm;
lead angle of thread: phi is 8.15 degrees;
pitch: p is 40 mm;
and (2) selecting and providing a second step by combining the threaded rod 1 and the threaded rod fixing frame, and applying the construction process of the threaded rod 1:
step S1, arranging the threaded rod 1: in the construction process of the equipment foundation, in the supporting link of a template 4, on a template foundation surface 5, arranging threaded rods 1 according to the positions and the number of reserved holes of foundation bolts of the equipment foundation in a foundation diagram of civil engineering equipment, wherein one threaded rod 1 corresponds to one reserved hole of the foundation bolt;
step S2, fixing the screw bar 1: fixing the threaded rods 1 by utilizing the threaded rod fixing frames 2 according to the positions of the reserved holes of the foundation bolts, specifically, firstly supporting the threaded rod fixing frames 2 on temporary reinforcing steel bars 3, binding two ends of the threaded rod fixing frames 2 by using iron wires, and then screwing the threaded rods 1 into the reserved internal threaded holes 23 on the threaded rod fixing frames 2 so as to fix the threaded rods 1 in rows;
step S3, adjusting the pre-buried depth of the threaded rod 1: adjusting the pre-buried depth of the threaded rod 1 according to the depth of the reserved hole of the foundation bolt, so that the threaded rod 1 is rotated clockwise to deepen the pre-buried depth according to the scale value arranged on the threaded rod 1, and the pre-buried depth is adjusted shallowly by rotating counterclockwise, and the pre-buried depth of the threaded rod 1 can refer to the scale value on the threaded rod 1;
step S4, checking the threaded rod 1: after the arrangement of the threaded rod 1, one complete inspection is required: checking whether the positions of the threaded rods 1, the number of the threaded rods 1, the verticality and the pre-buried depth of the threaded rods 1 meet the requirements and whether the bundling is firm or not;
step S5, surface wetting treatment of the threaded rod 1: before the concrete 6 is poured, the outer surfaces of all the threaded rods 1 are wetted by water, and the outer surfaces of the threaded rods 1 and the concrete 6 in the initial setting stage have a lubricating effect so as to be convenient for taking out the threaded rods 1;
step S6, pouring concrete 6 on the equipment foundation;
step S7, taking out the screw bar 1: when the poured concrete 6 is in initial setting, taking out the threaded rod 1 in a mode of anticlockwise rotating the threaded rod 1; the threaded rod 1 is taken out after about 1 hour of casting in summer, the threaded rod 1 is taken out after 2 hours of casting in winter, and after the concrete 6 is slowly solidified, the reserved hole of the foundation bolt is solidified to form;
step S8, cleaning a reserved hole of the foundation bolt: and after the threaded rod 1 is taken out, checking and cleaning concrete 6 falling in the reserved hole of the foundation bolt, and then sealing the hole for the next working procedure.
The construction process of step two in this embodiment is applied to a formwork 4 supporting link in equipment foundation construction, and includes the steps S1 to S8, and preferably, includes the steps S9, cleaning the threaded rod 1: the screw rod 1 after being taken out is cleaned for reuse in the next construction, the utilization rate is high, the screw rod 1 can be repeatedly utilized to carry out construction of the foundation bolt preformed hole of the equipment foundation, the construction period is shortened, the construction cost can be obviously saved, the physical size of all the preformed holes after rechecking meets the design requirement, and the foundation bolt preformed hole of the equipment foundation manufactured by the construction method has high hole forming quality and is clean in the hole.
On the other hand, fig. 2 shows an application structure schematic diagram of the equipment foundation bolt preformed hole according to the exemplary embodiment of the present invention, and according to the present embodiment, there is also provided an application structure of the equipment foundation bolt preformed hole, which is applied to the construction method of the equipment foundation bolt preformed hole, and includes a threaded rod 1 and a threaded rod fixing frame 2; referring to fig. 3 and 4, the present embodiment provides a threaded rod 1 having an outer diameter not smaller than the diameter of the bolt prepared hole, and a length of the threaded rod 1 greater than the depth of the bolt prepared hole; the threaded rod fixing frame 2 comprises a fixing part 21 and extending parts 22 which are arranged at two ends of the fixing part 21 and are symmetrically arranged relative to the fixing part 21, the thickness of the fixing part 21 is greater than that of the extending parts 22, and an internal threaded hole 23 matched with the threaded rod 1 is arranged along the thickness direction of the fixing part 21; from this, this embodiment application screw rod 1 replaces wooden mould to be under construction, to solving traditional construction method and adopting interim plank sheathing to strut the technical defect that the method has the installation inconvenience, demolishs the destructiveness big and shaping quality is poor, adopts screw rod 1 to come construction equipment basis rag bolt preformed hole, can effectively improve the construction progress, can effectively avoid the destructiveness to demolish when taking out screw rod 1, bolt preformed hole shaping is of high quality.
Preferably as this embodiment, the screw thread stick 1 that this embodiment provided has dextrorotation trapezoidal thread, screw thread stick mount 2 has the internal thread hole 23 with dextrorotation trapezoidal thread looks adaptation, so that screw thread stick 1 rotates to the screw in along the internal thread hole 23 clockwise of screw thread stick mount 2, screw thread stick 1 is rotatory for taking out along the internal thread hole 23 anticlockwise of screw thread stick mount 2, be convenient for the installation of screw thread stick 1 with take out, and screw thread stick 1 adopts dextrorotation trapezoidal thread and screw thread stick mount 2 cooperation to be connected, better connection stability and reliability have in the work progress, so equipment basis rag bolt preformed hole shaping is effectual.
As shown in fig. 2, the threaded rod 1 provided in this embodiment is hollow, the bottom of the threaded rod 1 is provided with an exhaust hole 11 communicated with the top of the threaded rod 1, the exhaust hole 11 is used for communicating with the external atmosphere, and the present embodiment takes an exhaust hole with a hole diameter of 6mm as an example, so that in the process of taking out the threaded rod 1, the exhaust hole 11 can be effectively utilized to balance the atmospheric pressure in the reserved hole of the anchor bolt with the outside, the problem that the threaded rod 1 is difficult to take out due to negative pressure is avoided, and the structural design is ingenious and reasonable; meanwhile, the upper end of the mounting threaded rod 1 is provided with a screw-out insertion hole 12, so that the threaded rod 1 can be conveniently taken out by inserting the screw-out insertion hole 12 through a steel bar or other structural members and taking out the threaded rod 1 through the screw-out insertion hole 12.
The material of the threaded rod 1 can be selected from one of plastic, carbon steel or stainless steel, wherein the threaded rod 1 made of the plastic material is low in cost, but as the optimization of the embodiment, the threaded rod 1 provided by the embodiment is made of the carbon steel, and the carbon steel is selected according to the specific construction process and is more durable in use in construction; be provided with scale interval (not shown) along the length direction of screw rod 1 to make can be according to the pre-buried degree of depth of scale interval adjustment screw rod 1, the accurate pre-buried degree of depth of control screw rod 1 of being convenient for.
In the embodiment, the thread height of the threaded rod 1 is h1, and h1 is 15mm, so that a reserved hole of a foundation bolt of deep rotary trapezoid equipment can be manufactured; the lead angle of the selected thread rod 1 is phi, and phi is 8.15 degrees, so that the equipment foundation bolt preformed hole meeting the design requirement can be simply and conveniently obtained.
As shown in fig. 4, the fixing portion 21 and the extending portion 22 of the threaded rod fixing frame 2 provided in this embodiment are integrally connected, and an arc-shaped transition portion is formed at the connection portion, so that the threaded rod fixing frame 2 is stably connected and installed, is convenient to manufacture, and can stably support the threaded rod 1; meanwhile, the extending portions 22 at the two ends of the fixing portion 21 are provided with mounting holes for supporting, so that the threaded rod fixing frame 2 is firstly supported on the temporary reinforcing steel bar 3 or the batten through the mounting holes, the two ends of the threaded rod fixing frame 2 are bound up by iron wires, and then the threaded rod 1 is screwed into the reserved internal thread hole 23 on the threaded rod fixing frame 2.
The following is that the application structure of this embodiment is compared with the traditional construction scheme:
(1) and (3) analyzing the material cost: according to market material price calculation, the number of reserved anchor bolt holes is about 500, if a traditional construction scheme is adopted, the material cost of a single wood mold with reserved anchor bolt holes is about 15 yuan and cannot be reused, and the total 500x15 of the material cost of 500 anchor bolt holes is 7500 yuan; and adopt this embodiment technical scheme, use 50 screw rod turnovers and just can satisfy the construction progress requirement, and repeatedly usable, single screw rod cost about 250 yuan, life calculates according to 500 times, and the single expense of conversion is 0.5 yuan, and 500 rag bolt hole material expenses add up to 500x0.5 be 250 yuan, and it is big to engineering equipment basis rag bolt preformed hole demand from this, can show material cost saving and environmental protection.
(2) And (3) analyzing labor cost:
a. and (3) making time comparison: if the traditional construction scheme is adopted, the foundation bolt hole die needs to be nailed by the template on site, about 40 minutes is needed for manufacturing a single die, and about 330 man-hours are needed for completing 500 reserved foundation bolt hole dies; by adopting the technical scheme of the embodiment, the time of the wood mould processing and manufacturing process can be saved, the manufacturing time cost is zero, the manufacturing time of a single foundation bolt preformed hole can be saved by about 40 minutes, about 330 labor hours can be saved in one project, and the construction progress is improved accordingly; if the labor cost is converted, one carpenter counts every 300 yuan, and the labor cost can be saved by about 25 yuan by constructing a single foundation bolt preformed hole;
b. the installation and disassembly time is compared, the traditional construction method is that the steel nails or binding is used for installation and fixation, and the technical scheme of the embodiment adopts the support for fixation; the traditional demolition is destructive demolition of the mold, while the technical scheme of the embodiment adopts rotary type removal, so that the mold is more convenient and quicker to save compared with the traditional construction method, and the technical scheme of the embodiment is used for saving the installation and demolition time by about more than 30% compared with the traditional method through practical operation statistics.
(3) Evaluating the working efficiency: the technical scheme of the embodiment is simple and convenient to mount and dismount, avoids the wood pattern machining and manufacturing process, and improves the working efficiency compared with the traditional construction method.
(4) And (3) economic benefit analysis: according to the comparative analysis of materials, manpower and working efficiency, the economic benefit is improved by about 80 times by adopting the technical scheme of the embodiment, and meanwhile, the technical scheme of the embodiment is beneficial to shortening the construction time and improving the construction progress.
In conclusion, the application structure of the foundation bolt preformed hole of the equipment foundation comprises the threaded rod 1 and the threaded rod fixing frame 2 matched with the threaded rod 1, the structure is simple, the selected materials are wide, the equipment foundation bolt preformed hole is easy to obtain, the threaded rod 1 and the threaded rod fixing frame 2 are in threaded fit connection, the installation position is accurate, the verticality of the threaded rod can be effectively ensured, and the connection stability and reliability are better in the construction process, so that the forming quality of the foundation bolt preformed hole of the equipment foundation is further improved; the method for constructing the foundation bolt preformed hole of the deep rotary trapezoidal equipment by using the threaded rod 1 to replace a wood mold can manufacture the foundation bolt preformed hole of the deep rotary trapezoidal equipment according to needs, and the application structure can not cause destructive disassembly in construction application, so that the method has the advantages of safety, reliability, simple and rapid operation method, good forming quality, better effect after secondary grouting and the like; the physical size of all prepared holes after rechecking all accords with the design requirement, and the equipment foundation bolt prepared hole pore-forming quality of making is high, and downthehole cleanness, after the construction is accomplished, the screw thread stick 1 can also used repeatedly to show saving enterprise construction cost, have fine application prospect and using value widely from this.
The invention is not limited to the foregoing embodiments. The invention extends to any novel feature or any novel combination of features disclosed in this specification and any novel method or process steps or any novel combination of features disclosed.
Claims (10)
1. A construction method of a reserved hole of an equipment foundation bolt is characterized by comprising the following steps: the construction method comprises the following steps:
step one, a preparation process of a threaded rod and a threaded rod fixing frame: selecting parameters of a threaded rod, namely selecting the size parameters of the threaded rod including the hole diameter and the depth according to the type of a reserved hole of a prefabricated bolt; selecting a threaded rod fixing frame matched with the threaded rod according to the size parameter of the threaded rod;
step two, applying a construction process of the threaded rod:
step S1, arranging a threaded rod: arranging threaded rods according to the positions and the number of reserved holes of foundation bolts of the equipment foundation in a foundation diagram of civil engineering equipment, wherein one threaded rod corresponds to one reserved hole of each foundation bolt;
step S2, fixing the screw: fixing the threaded rods by utilizing a threaded rod fixing frame according to the positions of the reserved holes of the foundation bolts so as to fix the threaded rods in rows or fix the threaded rods singly;
step S3, adjusting the pre-buried depth of the threaded rod: adjusting the pre-buried depth of the threaded rod according to the depth of the reserved hole of the foundation bolt;
step S4, checking the threaded rod: after the arrangement of the threaded rods, one-time comprehensive inspection is required: checking whether the position, the number, the verticality and the pre-buried depth of the threaded rods meet the requirements or not;
step S5, surface wetting treatment of the threaded rod: before concrete pouring, wetting the outer surfaces of all the threaded rods by using water so as to take out the threaded rods conveniently;
step S6, pouring concrete on the equipment foundation;
step S7, taking out the screw: when the poured concrete is in initial setting, taking out the threaded rod in a manner of rotating the threaded rod; after the concrete is slowly solidified, the reserved hole of the foundation bolt is solidified to form;
step S8, cleaning a reserved hole of the foundation bolt: and after the threaded rod is taken out, checking and cleaning concrete falling in the reserved hole of the foundation bolt, and then sealing the hole for the next working procedure.
2. The construction method of the equipment foundation anchor bolt prepared hole according to claim 1, characterized in that: in the first step, the selected threaded rod is provided with right-handed trapezoidal threads, and the threaded rod fixing frame is provided with an internal thread hole matched with the right-handed trapezoidal threads, so that the threaded rod rotates clockwise along the internal thread hole of the threaded rod fixing frame to be screwed in, and the threaded rod rotates anticlockwise along the internal thread hole of the threaded rod fixing frame to be taken out.
3. The construction method of the equipment foundation anchor bolt prepared hole according to claim 2, characterized in that: the selected parameters of the threaded rod are as follows:
the outer diameter of the thread is D1, and D1 is (D +38) mm, wherein D is the diameter of a reserved hole of the prefabricated bolt;
the pitch diameter of the thread is D2, and D2 is (D +8) mm;
id 3, and d3 ═ d (mm);
the thread height is h1, and h1 is 15 mm;
the lead angle is phi, and phi is 8.15 degrees;
the pitch is P, and P is 40 mm;
the length of the threaded rod is H, and H is (H +220) mm; wherein h is the depth of the reserved hole of the prefabricated bolt.
4. The construction method of the equipment foundation anchor bolt prepared hole according to claim 1, characterized in that: the construction process of the threaded rod in the second step is applied to a formwork supporting link in equipment foundation construction, and comprises the steps S1 to S8, and further comprises the step S9 of cleaning the threaded rod: and cleaning the taken out threaded rod for reuse in the next construction.
5. The construction method of the equipment foundation anchor bolt prepared hole according to claim 4, characterized in that: and fixing the threaded rod in the step S2, firstly supporting the threaded rod fixing frame on temporary steel bars or battens, binding two ends of the threaded rod fixing frame by using iron wires, and then screwing the threaded rod into an internal thread hole reserved on the threaded rod fixing frame.
6. The construction method of the equipment foundation anchor bolt prepared hole according to claim 5, wherein: and in the step S3, adjusting the pre-buried depth of the threaded rod so as to rotate the threaded rod clockwise according to the scale value set on the threaded rod to deepen the pre-buried depth and rotate the threaded rod counterclockwise to shalow the pre-buried depth.
7. The utility model provides an application structure in equipment basis rag bolt preformed hole which characterized in that: the construction method applied to the equipment foundation bolt preformed hole of any one of claims 1 to 6, comprising a threaded rod and a threaded rod fixing frame; wherein
The outer diameter of the threaded rod is not smaller than the diameter of the bolt preformed hole, and the length of the threaded rod is larger than the depth of the bolt preformed hole;
the threaded rod fixing frame comprises a fixing portion and extending portions, wherein the extending portions are arranged at two ends of the fixing portion and symmetrically arranged about the fixing portion, the thickness of the fixing portion is larger than that of the extending portions, and an internal thread hole matched with the threaded rod is formed in the thickness direction of the fixing portion.
8. The application structure of the equipment foundation bolt prepared hole according to claim 7, characterized in that: the threaded rod is arranged in a hollow mode, and the bottom of the threaded rod is provided with an exhaust hole communicated with the atmosphere.
9. The application structure of the equipment foundation bolt prepared hole according to claim 7, characterized in that: and a screwing-out jack is arranged at the upper end of the threaded rod so that the threaded rod can be taken out through the screwing-out jack.
10. The application structure of the equipment foundation bolt prepared hole according to claim 7, characterized in that: the material of the threaded rod is selected from one of plastic, carbon steel or stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010516593.2A CN111519652A (en) | 2020-06-09 | 2020-06-09 | Construction method of equipment foundation bolt preformed hole and application structure thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010516593.2A CN111519652A (en) | 2020-06-09 | 2020-06-09 | Construction method of equipment foundation bolt preformed hole and application structure thereof |
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| Publication Number | Publication Date |
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| CN111519652A true CN111519652A (en) | 2020-08-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010516593.2A Pending CN111519652A (en) | 2020-06-09 | 2020-06-09 | Construction method of equipment foundation bolt preformed hole and application structure thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114482691A (en) * | 2022-02-25 | 2022-05-13 | 中铁北京工程局集团有限公司 | Assembled airport enclosure foundation template and using method thereof |
-
2020
- 2020-06-09 CN CN202010516593.2A patent/CN111519652A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114482691A (en) * | 2022-02-25 | 2022-05-13 | 中铁北京工程局集团有限公司 | Assembled airport enclosure foundation template and using method thereof |
| CN114482691B (en) * | 2022-02-25 | 2022-10-21 | 中铁北京工程局集团有限公司 | Assembled airport enclosure foundation template and use method thereof |
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