CN112031479A - Linear accelerator radiotherapy room structure and construction method thereof - Google Patents
Linear accelerator radiotherapy room structure and construction method thereof Download PDFInfo
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- CN112031479A CN112031479A CN202011006215.6A CN202011006215A CN112031479A CN 112031479 A CN112031479 A CN 112031479A CN 202011006215 A CN202011006215 A CN 202011006215A CN 112031479 A CN112031479 A CN 112031479A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H3/00—Buildings or groups of buildings for public or similar purposes; Institutions, e.g. infirmaries or prisons
- E04H3/08—Hospitals, infirmaries, or the like; Schools; Prisons
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- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0075—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability making use of a decrease in temperature
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- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/16—Structures made from masses, e.g. of concrete, cast or similarly formed in situ with or without making use of additional elements, such as permanent forms, substructures to be coated with load-bearing material
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- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
- E04G11/02—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for rooms as a whole by which walls and floors are cast simultaneously, whole storeys, or whole buildings
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/24—Safety or protective measures preventing damage to building parts or finishing work during construction
- E04G21/246—Safety or protective measures preventing damage to building parts or finishing work during construction specially adapted for curing concrete in situ, e.g. by covering it with protective sheets
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G9/00—Forming or shuttering elements for general use
- E04G9/10—Forming or shuttering elements for general use with additional peculiarities such as surface shaping, insulating or heating, permeability to water or air
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B2001/925—Protection against harmful electro-magnetic or radio-active radiations, e.g. X-rays
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Abstract
The invention provides a linear accelerator radiotherapy room structure and a construction method thereof, wherein the linear accelerator radiotherapy room structure comprises a wall body, a top plate, a bottom plate and an outer wall guide wall, wherein: the bottom plate is positioned on the basement bottom plate, and the bottom plate, the basement bottom plate, the outer wall guide wall and the basement outer wall are connected into a whole; the wall body and the top plate are internally provided with a heat preservation template system and a concrete temperature reduction and measurement system, and the wall body heat preservation template system comprises wall body steel bars, extruded sheets and wood templates arranged on two sides of the extruded sheets; the top plate heat preservation formwork system comprises top plate steel bars, keels and top plate wood formworks arranged on the tops of the keels; the concrete cooling and temperature measuring system comprises a cooling pipe and a temperature measuring system, wherein the cooling pipe is arranged in layers in the wall body and the top plate at equal intervals, the temperature measuring system comprises auxiliary steel bars, the auxiliary steel bars are vertically placed according to the positions of temperature measuring points, and sensors are uniformly distributed. The invention is used for ensuring the construction quality of mass concrete and the radiation protection requirement of the structure.
Description
Technical Field
The invention belongs to the technical field of construction of mass concrete structures, and particularly relates to a linear accelerator radiotherapy room structure and a construction method thereof.
Background
The medical electron accelerator is one of the ultrahigh pressure radiotherapy equipment with better performance, is suitable for treating deep and shallow tumors of a human body, and is applied to more and more hospitals due to the development of economic technology in recent years. Because the treatment room has the requirement of radiation protection, the thickness of the structural wall body and the top plate is large, the concrete is not allowed to have the conditions of bubbles, honeycombs, cracks and the like during construction, otherwise, the concrete is unqualified, the repair is very difficult, and the reconstruction example is exploded. Therefore, in order to eliminate the occurrence of unqualified structure in the engineering construction and reduce unnecessary economic loss, a construction method of a linear accelerator radiotherapy room structure is researched, the conditions of bubbles, honeycombs, pitted surfaces and the like of a concrete structure are avoided, the forming quality of mass concrete is improved, and meanwhile, the radiation protection requirement of the structure is also met.
Disclosure of Invention
The invention aims to solve the problems that in the background technology, the phenomena of bubbles, honeycombs, cracks and the like of radiation-proof concrete with a large structure volume are avoided, the problem that large heat generated by hydration heat reaction in the concrete structure with the large structure volume is not easy to dissipate and the temperature difference between the inner surface and the outer surface is too large is effectively controlled, and provides a radiation treatment room structure of a linear accelerator and a construction method thereof.
In order to solve the technical problems, the invention adopts the technical scheme that: a linear accelerator radiotherapy room structure comprises a wall body, a top plate, a bottom plate and an outer wall guide wall, wherein:
the bottom plate is positioned on the basement bottom plate, and the bottom plate is connected with the basement bottom plate, the outer wall guide wall and the basement outer wall into a whole;
the wall body with all set up heat preservation template system and concrete in the roof and fall, temperature measurement system, wherein: the wall heat-insulation formwork system comprises wall reinforcing steel bars, an extruded sheet and wood formworks arranged on two sides of the extruded sheet;
the top plate heat preservation formwork system comprises top plate steel bars, keels and top plate wood formworks arranged on the tops of the keels;
the concrete cooling and temperature measuring system comprises a cooling pipe and a temperature measuring system, wherein the cooling pipe is arranged in the wall body and the top plate at equal intervals in a layered mode, the temperature measuring system comprises auxiliary steel bars, the auxiliary steel bars are vertically placed according to the positions of temperature measuring points, and the sensors are evenly distributed.
Preferably, the wall heat preservation template system further comprises battens and scaffold tubes, wherein:
the outer side of the wood formwork is provided with wood square vertical back ridges at equal intervals;
the scaffold tube is transversely arranged on the heat-preservation template system, and the two sides of the scaffold tube are reinforced through split bolts.
Preferably, the roof slab insulation formwork body further comprises a full hall scaffold, wherein:
a wood springboard is padded at the bottom of the vertical rod of the full hall scaffold, and a jacking is installed at the top of the vertical rod of the full hall scaffold;
a main keel scaffold tube is placed on the top support, and a secondary keel batten is placed in the direction vertical to the top of the main keel scaffold tube;
the top plate plank sheathing sets up to four layers, lays in the top of secondary joist flitch.
Preferably, the auxiliary steel bar is provided with three wires, wherein:
the three conducting wires are arranged along the length direction of the auxiliary reinforcing steel bar; and is
The sensor is arranged at the bottom of the lead, and the plug is arranged at the top of the lead.
Preferably, two support ribs are arranged at the bottom of each cooling pipe, and the support ribs are bound and fixed with the cooling pipes.
Preferably, the concrete also comprises radiation-proof concrete and mortar, wherein:
the components of the mortar are the same as those of the radiation-proof concrete, and the mortar is laid on the top of the outer wall guide wall;
the radiation-proof concrete is used for pouring the wall body and the top plate.
Preferably, still include plastic film layer and cotton felt layer, plastic film layer lays on the radiation protection concrete layer, the cotton felt layer cover in on the plastic film layer.
Preferably, a groove is reserved at the top of the concrete of the outer wall guide wall, and a water stop steel plate is arranged on one side of the groove.
A construction method of a linear accelerator radiation treatment room structure comprises the following steps:
s1: before the construction of the wall body and the top plate of the linear accelerator radiotherapy room, the construction of the bottom plate and the outer wall guide wall, the construction of the basement bottom plate and the outer wall guide wall are completed simultaneously, a groove is reserved at the top of the concrete of the outer wall guide wall, a water stop steel plate is arranged for a water stop measure of a horizontal construction joint, and the top of the concrete is roughened and cleaned;
s2: after the bottom plate concrete is cured and reaches a certain strength, bouncing the wall position line;
s3: mounting wall body reinforcing steel bars, placing cooling pipes and a temperature measuring system in the wall body, wherein the cooling pipes are arranged in layers at equal intervals along the vertical direction of the wall body, and a support rib is placed at the bottom of each cooling pipe and is firmly bound and fixed with the cooling pipe;
s3: erecting a wall and top plate heat preservation template system, wherein the wall template is a heat preservation template system consisting of wood templates on two sides and an extruded sheet placed in the middle, the outer side of the wood template is stupefied by uniformly spaced battens in a vertical back mode, and finally, the heat preservation template system on the two sides of the wall is reinforced by adopting transverse scaffold pipes and water stop split bolts;
s4: erecting a full scaffold at the bottom of a top plate, padding a wood springboard at the bottom of a vertical rod of the full scaffold, mounting a top support at the top, adjusting the height of the top support to meet the supporting height of a final template, placing a main keel scaffold tube above the top support, placing a secondary keel batten in a direction vertical to the top of the main keel scaffold tube, and finally laying 4 layers of top plate wood templates on the secondary keel batten;
s5: installing top plate steel bars and placing a cooling pipe and a temperature measuring system in the top plate, wherein the upper layer and the lower layer of the top plate steel bars are supported by steel bar supports at equal intervals, the placing mode of the top plate cooling pipe and the temperature measuring system is the same as that of a wall body, and the cooling pipes are arranged in layers at equal intervals along the thickness of the top plate;
s6: after the other basement wall bodies and the top plate templates connected with the linear accelerator radiotherapy chamber are erected, concrete is poured together, before the radiation-proof concrete of the wall bodies and the top plate of the linear accelerator radiotherapy chamber is poured, a layer of mortar with the same components as the radiation-proof concrete is paved on the top of the outer wall guide wall, the radiation-proof concrete is poured in a layered and staggered manner in sequence, the pouring thickness of each layer is strictly controlled in the pouring process, the pouring work of the upper layer concrete is required to be completed before the initial setting of the lower layer concrete, the top plate concrete is poured 3 hours after the wall body concrete is poured, so that the wall body concrete can be primarily settled, a plastic film is immediately paved after the radiation-proof concrete of the top plate is leveled, and a layer of cotton felt is paved for covering;
s7: the concrete pouring temperature measuring method comprises the following steps that temperature measuring work is started after concrete pouring is completed for 10 hours, water is used for cooling after 24 hours, temperature measuring requirements are recorded once every 2 hours in a temperature rising stage, once every 4 hours in a temperature lowering stage, once every 4-8 hours in a week later, the monitoring concrete center temperature and the surface temperature difference are less than 25 ℃, and after the operation of a temperature lowering system, the temperature measuring method is used in a temperature lowering pipe 1: 1, recharging cement paste, curing after the radiation-proof concrete is poured, wherein a specially-assigned person is responsible for curing, the curing time is over 14d, and after the concrete strength reaches 100% and a template can be disassembled after the concrete strength is detected through physical resilience, the construction of the linear accelerator radiotherapy room structure is completed.
Preferably, the temperature measurement system is provided with auxiliary steel bars which are longer than the height of the wall body, three wires with sensors at the bottom and plugs at the top are arranged along the length direction of the auxiliary steel bars, and the auxiliary steel bars are vertically placed according to the positions of temperature measurement points, so that the positions of the three sensors are respectively positioned at the top, the middle and the bottom of the wall body;
the temperature measurement system vertically places auxiliary steel bars according to the position of a temperature measurement point, so that the positions of the three sensors are respectively positioned at the top, the middle and the bottom of the top plate.
The invention has the advantages and positive effects that:
1. the cooling pipes and the temperature measuring system are arranged in the wall body and the top plate, and the cooling pipes are vertically arranged in layers at equal intervals along the wall body and the top plate, so that a water cooling mode is effectively utilized, the problem of concrete cracks caused by large temperature difference inside and outside the structure due to the fact that the temperature inside the structure is not easy to distribute is controlled; the temperature measurement system is vertically placed according to the position of a temperature measurement point, so that the positions of three sensors of each temperature measurement system are respectively positioned at the top, the middle part and the bottom of the wall body and the top plate, and the electronic temperature measurement system is utilized to accurately and quickly monitor the temperature inside the concrete.
2. By adopting the wall body templates as the wood templates at two sides, placing the extruded sheets in the middle, laying a heat preservation template system consisting of 4 layers of top plate wood templates on the top plate templates, immediately laying a plastic film after concrete pouring is finished and leveling, and then laying a layer of cotton felt for covering, the problem of concrete cracks caused by large temperature difference inside and outside the structure due to the fact that the heat dissipation of the outer surface of the structure is too fast is effectively controlled.
3. Through according to the layering of order when pouring the radiation protection concrete and closing a circle and pouring, the thickness is pour in every layer of strict control, and must accomplish the pouring work of upper concrete before the initial set of lower floor's concrete, and the roof concrete is poured to 3 hours after the wall body concrete pouring, makes the wall body concrete can preliminary heavy and solid, avoids the concrete bubble, pitted skin to appear, can also the control bulky concrete temperature of certain degree, guarantees the radiation protection requirement of bulky concrete construction quality and structure.
Drawings
FIG. 1 is a sectional view of a linear accelerator radiation treatment room according to the present invention;
FIG. 2 is a plan view of a wall of a linear accelerator radiation treatment room configuration of the present invention;
FIG. 3 is a sectional view of a temperature measuring system and a cooling tube of a linear accelerator radiotherapy room structure according to the present invention;
FIG. 4 is a plan view of the temperature measuring point and the wall cooling pipe of the linear accelerator radiotherapy chamber structure of the present invention;
FIG. 5 is a detailed view of a cooling tube of a linear accelerator radiation treatment chamber structure of the present invention;
FIG. 6 is a detailed view of a temperature measurement system for a linear accelerator radiation treatment room configuration of the present invention;
FIG. 7 is an enlarged view of a second construction node of the linear accelerator radiotherapy room structure of the present invention;
FIG. 8 is an enlarged view of a first construction node of a linear accelerator radiotherapy room structure according to the present invention;
FIG. 9 is a plan view of the temperature measuring point and the top plate cooling tube of the linear accelerator radiotherapy chamber structure of the present invention.
In the figure:
1. a wall body; 2. a top plate; 3. a base plate; 4. a guide wall; 5. a groove; 6. wall body reinforcing steel bars; 7. a cooling pipe; 8. a temperature measuring system; 9. supporting ribs; 10. auxiliary reinforcing steel bars; 11. a sensor; 12. a plug; 13. a wire; 14. measuring temperature points; 15. a wood template; 16. extruding a plastic plate; 17. wood block; 18. a scaffold tube; 19. oppositely pulling the bolts; 20. a full hall scaffold; 21. a wood springboard; 22. jacking; 23. a main keel scaffold tube; 24. secondary keel beam wood blocks; 25. a top plate wood formwork; 26. roof reinforcing steel bars; 27. a steel bar support; 28. concrete; 29. mortar; 30. a plastic film; 31. a cotton felt; 32. a water stop steel plate; 100. a first node; 200. and a second node.
Detailed Description
A linear accelerator radiotherapy room structure, fig. 1 is a construction cross-sectional view of the present embodiment, as shown in fig. 1, comprising a wall 1, a top plate 2, a bottom plate 3 and an outer wall guide wall 4, wherein:
the bottom plate 3 is positioned on the basement bottom plate, and the bottom plate 3, the basement bottom plate, the outer wall guide wall 4 and the basement outer wall are connected into a whole;
fig. 2 is a plan view of the wall body of the present embodiment, and as shown in fig. 2, a heat preservation formwork system and a concrete temperature lowering and measuring system are respectively arranged in the wall body 1 and the top plate 2, wherein: the wall heat-preservation formwork system comprises wall reinforcing steel bars 6, an extruded sheet 16 and wood formworks 15 arranged on two sides of the extruded sheet 16;
the top plate heat preservation formwork system comprises top plate steel bars 26, keels and top plate wooden formworks 25 arranged on the tops of the keels;
concrete falls, temperature measurement system includes cooling tube and temperature measurement system, and cooling tube 7 is equidistant layering setting in wall body 1 and roof 2, and temperature measurement system 8 includes auxiliary reinforcement 10, and auxiliary reinforcement 10 is vertical according to the position of temperature measurement point 14 to 11 evenly distributed of sensor.
Specifically, fig. 3 is a sectional view of a temperature measuring system and a cooling pipe of a linear accelerator radiotherapy room structure of the embodiment, as shown in fig. 3, the linear accelerator radiotherapy room structure comprises a concrete structure heat insulation formwork support system and a concrete cooling and temperature measuring system, the linear accelerator radiotherapy room is positioned on a basement bottom plate and is connected with a basement outer wall into a whole, before the construction of a wall body 1 and a top plate 2 of the linear accelerator radiotherapy room, the bottom plate 3 and an outer wall guide wall 4 are constructed simultaneously with the basement bottom plate and the outer wall guide wall, a groove 5 at the concrete top of the outer wall guide wall 4 is provided with a water stop steel plate 32 for a water stop measure of a horizontal construction joint, and the top of the concrete is roughened and cleaned;
as an alternative embodiment, the auxiliary steel bar 10 is provided with three wires, wherein: the three conducting wires 13 are all arranged along the length direction of the auxiliary steel bar 10; and the bottom of wire 13 sets up sensor 11, and the top of wire 13 sets up plug 12, specifically, the bottom of every cooling tube 7 sets up two brace rods 9 to brace rod 9 and cooling tube 7 ligature are fixed.
After the bottom plate concrete is cured and reaches a certain strength, the wall body position line is bounced, the wall body reinforcing steel bars 6 are installed, the cooling pipes 7 and the temperature measuring system 8 are placed in the wall body 1, fig. 4 is a temperature measuring point and wall body cooling pipe plane arrangement diagram in the embodiment, as shown in fig. 4, the cooling pipes 7 are vertically arranged in layers at equal intervals along the wall body 1, and 2 supporting ribs 9 are placed at the bottoms of each cooling pipe 7 and are fixedly bound with the cooling pipes 7, as shown in fig. 5. Fig. 6 is a detailed diagram of the temperature measurement system in this embodiment, as shown in fig. 6, the temperature measurement system 8 has an auxiliary steel bar 10 longer than the height of the wall, three wires 13 with sensors 11 at the bottom and plugs 12 at the top are arranged along the length direction of the auxiliary steel bar 10, and the auxiliary steel bar 10 is vertically placed according to the position of a temperature measurement point 14, so that the positions of the three sensors 11 are respectively located at the top, the middle and the bottom of the wall 1;
as an optional implementation manner, fig. 7 is an enlarged schematic view of a structure of the second node in this embodiment, and as shown in fig. 7, the wall insulation formwork system further includes a batten 17 and a scaffold tube 18, where:
the outer side of the wood template 15 is provided with battens 17 with equal intervals and vertical back ridges; the scaffold tube 18 is transversely arranged on the heat preservation template system, and two sides of the scaffold tube 18 are reinforced by split bolts 19.
Specifically, a wall body 1 and a top plate 2 heat preservation formwork system are erected, the wall body 1 formwork is a heat preservation formwork system formed by wood formworks 15 on two sides and an extruded sheet 16 placed in the middle, the outer side of each wood formwork 15 is stupefied by battens 17 at equal intervals in a vertical back mode, and finally the heat preservation formwork system on the two sides of the wall body 1 is reinforced by transverse scaffold pipes 18 and water stop counter-pull bolts 19.
As an alternative implementation manner, fig. 8 is an enlarged schematic structural view of the first node in this embodiment, and as shown in fig. 8, the roof thermal insulation formwork body further includes a full framing scaffold 20, where: the bottom of the vertical rod of the full hall scaffold 20 is padded with a wood gangboard 21, and the top is provided with a top support 22; a main keel scaffold tube 23 is arranged on the top support 22, and a secondary keel batten 24 is arranged in the direction vertical to the top of the main keel scaffold tube 23; roof plank sheathing 25 sets up to four layers, lays in the top of secondary joist flitch 24.
Specifically, a full scaffold 20 at the bottom of a top plate 2 is erected, a wood gangboard 21 is arranged at the bottom of a vertical rod of the full scaffold 20 in a cushioning mode, a top support 22 is arranged at the top, the height of the top support 22 is adjusted to meet the supporting height of a final template, a main keel scaffold tube 23 is arranged above the top support 22, a secondary keel wood beam 24 is arranged in a direction perpendicular to the top of the main keel scaffold tube 23, finally 4 layers of top plate wood templates 25 are laid on the secondary keel wood beam 24, top plate steel bars 26 are arranged, a cooling tube 7 and a temperature measuring system 8 are arranged in the top plate 2, the upper layer and the lower layer of the top plate steel bars 26 are supported at equal intervals by steel bar supports 27, a temperature measuring point and top plate cooling tube plane layout is shown in figure 9, the top plate cooling tube 7 and the temperature measuring system 8 are arranged in the same mode as a wall body, the temperature measuring tube 7 is arranged at equal intervals in layers along the thickness of the top plate, three sensors 11 are positioned at the top, middle and bottom of the top plate 2, respectively.
As an optional embodiment, the concrete also includes radiation-proof concrete 28 and mortar 29, wherein: the components of the mortar 29 are the same as those of the radiation-proof concrete 28, and the mortar 29 is laid on the top of the outer wall guide wall 4; the radiation-proof concrete 28 is used for pouring the wall body 1 and the top plate 2.
Specifically, the radiation-proof concrete composite material further comprises a plastic film layer and a cotton felt layer, wherein the plastic film layer is laid on the radiation-proof concrete 28 layer, and the cotton felt layer covers the plastic film layer.
After the other basement wall bodies and the top plate templates connected with the linear accelerator radiotherapy room are erected, concrete is poured together, before the radiation-proof concrete 28 of the linear accelerator radiotherapy room wall body 1 and the top plate 2 are poured, a layer of mortar 29 with the same components as the radiation-proof concrete 28 is paved on the top of the outer wall guide wall 4, the radiation-proof concrete 28 is poured in a layered and staggered mode in sequence, the pouring thickness of each layer needs to be strictly controlled in the pouring process, the pouring work of the upper layer concrete needs to be completed before the initial setting of the lower layer concrete, the top plate concrete is poured 3 hours after the wall body concrete is poured, the wall body concrete can be preliminarily settled, the plastic film 30 is immediately paved after the top plate radiation-proof concrete 28 is leveled, and then a layer of cotton felt 31 is paved for covering; and (3) beginning temperature measurement after concrete pouring is completed for 10 hours, cooling through water after 24 hours, wherein the temperature measurement is required to be recorded every 2 hours in the temperature rise stage, every 4 hours in the temperature reduction stage, and every 4-8 hours after one week, and the temperature difference between the center temperature and the surface of the concrete is monitored to be less than 25 ℃. After the cooling system operation, use 1 in the cooling pipe: 1, recharging cement paste. After the radiation-proof concrete 28 is poured, a specially-assigned person is responsible for maintenance, the maintenance time is over 14d, and after the concrete strength reaches 100% and the concrete passes the physical resilience inspection, a template can be disassembled, so that the structural construction of the linear accelerator radiotherapy room is completed.
As an alternative embodiment, the groove 5 is reserved on the top of the concrete of the outer wall guide wall 4, and a water stop steel plate 32 is arranged on one side of the groove 5 and used for a water stop measure of a horizontal construction joint, and the top of the concrete is subjected to roughening and cleaning treatment.
A construction method of a linear accelerator radiotherapy room structure comprises a concrete structure heat insulation template supporting system and a concrete temperature lowering and measuring system, wherein the linear accelerator radiotherapy room is positioned on a basement bottom plate and is connected with a basement outer wall into a whole, and the construction method comprises the following steps:
s1: before the construction of the wall body 1 and the top plate 2 of the linear accelerator radiotherapy room, the bottom plate 3 and the outer wall guide wall 4 are constructed simultaneously with the bottom plate and the outer wall guide wall of the basement, a groove 5 is reserved at the concrete top of the outer wall guide wall 4, a water stop steel plate 32 is arranged for water stop measures of a horizontal construction joint, and the top of the concrete is roughened and cleaned;
s2: after the bottom plate concrete is cured and reaches a certain strength, bouncing the wall position line;
s3: installation wall body reinforcing bar 6 and place cooling tube 7 and temperature measurement system 8 in wall body 1, cooling tube 7 sets up along 1 vertical equidistant layering of wall body, and 2 brace rods 9 are placed to 7 bottoms of per road cooling tube and 7 ligatures of cooling tube are fixed firm, wherein: the temperature measuring system 8 is provided with auxiliary steel bars 10 which are longer than the height of the wall body, three conducting wires 13 with sensors 11 at the bottom and plugs 12 at the top are arranged along the length direction of the auxiliary steel bars 10, and the auxiliary steel bars 10 are vertically placed according to the positions of temperature measuring points 14, so that the positions of the three sensors 11 are respectively positioned at the top, the middle and the bottom of the wall body 1;
s3: erecting a wall body 1 and a top plate 2 heat preservation template system, wherein the wall body 1 template is a heat preservation template system consisting of wood templates 15 at two sides and an extruded sheet 16 placed in the middle, the outer side of each wood template 15 is stupefied by battens 17 at equal intervals in a vertical back mode, and finally, the heat preservation template system at two sides of the wall body 1 is reinforced by adopting transverse scaffold pipes 18 and water stop split bolts 19;
s4: erecting a full framing scaffold 20 at the bottom of a top plate 2, padding a wood springboard 21 at the bottom of a vertical rod of the full framing scaffold 20, installing a jacking 22 at the top, adjusting the height of the jacking 22 to meet the supporting height of a final template, placing a main keel scaffold tube 23 above the jacking 22, placing a secondary keel batten 24 in a direction vertical to the top of the main keel scaffold tube 23, and finally laying 4 layers of top plate wood templates 25 on the secondary keel batten 24;
s5: installing a top plate steel bar 26 and placing a cooling pipe 7 and a temperature measuring system 8 in a top plate 2, wherein the upper layer and the lower layer of the top plate steel bar 26 are supported at equal intervals by steel bar supports 27, the placing mode of the top plate cooling pipe 7 and the temperature measuring system 8 is the same as that of a wall body, the cooling pipe 7 is arranged at equal intervals in layers along the thickness of the top plate 2, and the temperature measuring system 8 vertically places auxiliary steel bars 10 according to the position of a temperature measuring point 14, so that the positions of three sensors 11 are respectively positioned at the top, the middle;
s6: after the other basement wall bodies and the top plate templates connected with the linear accelerator radiotherapy room are erected, concrete is poured together, before the radiation-proof concrete 28 of the linear accelerator radiotherapy room wall body 1 and the top plate 2 are poured, a layer of mortar 29 with the same components as the radiation-proof concrete 28 is paved on the top of the outer wall guide wall 4, the radiation-proof concrete 28 is poured in a layered and staggered mode in sequence, the pouring thickness of each layer needs to be strictly controlled in the pouring process, the pouring work of the upper layer concrete needs to be completed before the initial setting of the lower layer concrete, the top plate concrete is poured 3 hours after the wall body concrete is poured, the wall body concrete can be preliminarily settled, the plastic film 30 is immediately paved after the top plate radiation-proof concrete 28 is leveled, and then a layer of cotton felt 31 is paved for covering;
s7: the concrete pouring temperature measuring method comprises the following steps that temperature measuring work is started after concrete pouring is completed for 10 hours, water is used for cooling after 24 hours, temperature measuring requirements are recorded once every 2 hours in a temperature rising stage, once every 4 hours in a temperature lowering stage, once every 4-8 hours in a week later, the monitoring concrete center temperature and the surface temperature difference are less than 25 ℃, and after the operation of a temperature lowering system, the temperature measuring method is used in a temperature lowering pipe 1: 1, recharging cement paste, curing after the radiation-proof concrete is poured, wherein a specially-assigned person is responsible for curing, the curing time is over 14d, and after the concrete strength reaches 100% and a template can be disassembled after the concrete strength is detected through physical resilience, the construction of the linear accelerator radiotherapy room structure is completed.
The working principle is as follows: mainly aiming at a construction method of a linear accelerator radiotherapy room structure, a cooling pipe 7 and a temperature measuring system 8 are placed in a wall body 1 and a top plate 2, the cooling pipe 7 is vertically arranged in layers at equal intervals along the wall body 1 and the top plate 2, a water cooling mode is effectively utilized, and the problem of concrete cracks caused by large temperature difference inside and outside the structure due to the fact that the temperature inside the structure is not easy to disperse is controlled; the temperature measurement system 8 is vertically arranged according to the position of a temperature measurement point 14, so that the positions of the three sensors 11 are respectively positioned at the top, the middle part and the bottom of the wall body 1 and the top plate 2, and the temperature inside the concrete is accurately and quickly monitored by utilizing the electronic temperature measurement system. By adopting the wall body 1 as the two side wooden templates 15, placing the extruded sheet in the middle, laying 4 layers of top board wooden templates 25 on the top board 2 template to form a heat preservation template system, immediately laying the plastic film 30 after the concrete 28 is poured and leveled, and then laying a layer of cotton felt 31 for covering, the problem of concrete cracks caused by large temperature difference between the inside and the outside of the structure due to too fast heat dissipation of the outer surface temperature of the structure is effectively controlled; through according to the layering of order when pouring radiation protection concrete 28 and closing a circle and pouring, the thickness of pouring on every layer of strict control, and must accomplish the pouring work of upper concrete before the initial set of lower floor's concrete, pour the roof concrete 3 hours after the wall body concrete pouring again, make the wall body concrete can preliminary heavy and solid, avoid the concrete bubble, pitted skin to appear, can also the control bulky concrete temperature of certain degree, guarantee the radiation protection requirement of bulky concrete construction quality and structure.
The invention has the beneficial effects that:
1. the cooling pipes and the temperature measuring system are arranged in the wall body and the top plate, and the cooling pipes are vertically arranged in layers at equal intervals along the wall body and the top plate, so that a water cooling mode is effectively utilized, the problem of concrete cracks caused by large temperature difference inside and outside the structure due to the fact that the temperature inside the structure is not easy to distribute is controlled; the temperature measurement system is vertically placed according to the position of a temperature measurement point, so that the positions of three sensors of each temperature measurement system are respectively positioned at the top, the middle part and the bottom of the wall body and the top plate, and the electronic temperature measurement system is utilized to accurately and quickly monitor the temperature inside the concrete.
2. By adopting the wall body templates as the wood templates at two sides, placing the extruded sheets in the middle, laying a heat preservation template system consisting of 4 layers of top plate wood templates on the top plate templates, immediately laying a plastic film after concrete pouring is finished and leveling, and then laying a layer of cotton felt for covering, the problem of concrete cracks caused by large temperature difference inside and outside the structure due to the fact that the heat dissipation of the outer surface of the structure is too fast is effectively controlled.
3. Through according to the layering of order when pouring the radiation protection concrete and closing a circle and pouring, the thickness is pour in every layer of strict control, and must accomplish the pouring work of upper concrete before the initial set of lower floor's concrete, and the roof concrete is poured to 3 hours after the wall body concrete pouring, makes the wall body concrete can preliminary heavy and solid, avoids the concrete bubble, pitted skin to appear, can also the control bulky concrete temperature of certain degree, guarantees the radiation protection requirement of bulky concrete construction quality and structure.
While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.
Claims (10)
1. A linear accelerator radiation treatment room structure, characterized in that: lead the wall including wall body, roof, bottom plate and outer wall, wherein:
the bottom plate is positioned on the basement bottom plate, and the bottom plate is connected with the basement bottom plate, the outer wall guide wall and the basement outer wall into a whole;
the wall body with all set up heat preservation template system and concrete in the roof and fall, temperature measurement system, wherein: the wall heat-insulation formwork system comprises wall reinforcing steel bars, an extruded sheet and wood formworks arranged on two sides of the extruded sheet;
the top plate heat preservation formwork system comprises top plate steel bars, keels and top plate wood formworks arranged on the tops of the keels;
the concrete cooling and temperature measuring system comprises a cooling pipe and a temperature measuring system, wherein the cooling pipe is arranged in the wall body and the top plate at equal intervals in a layered mode, the temperature measuring system comprises auxiliary steel bars, the auxiliary steel bars are vertically placed according to the positions of temperature measuring points, and the sensors are evenly distributed.
2. The linac radiation treatment room structure according to claim 1, characterized in that: the wall heat preservation template system further comprises battens and scaffold tubes, wherein:
the outer side of the wood formwork is provided with wood square vertical back ridges at equal intervals;
the scaffold tube is transversely arranged on the heat-preservation template system, and the two sides of the scaffold tube are reinforced through split bolts.
3. The linac radiation treatment room structure according to claim 1, characterized in that: the roof heat preservation template body still includes full hall scaffold frame, wherein:
a wood springboard is padded at the bottom of the vertical rod of the full hall scaffold, and a jacking is installed at the top of the vertical rod of the full hall scaffold;
a main keel scaffold tube is placed on the top support, and a secondary keel batten is placed in the direction vertical to the top of the main keel scaffold tube;
the top plate plank sheathing sets up to four layers, lays in the top of secondary joist flitch.
4. Linac radiation treatment room structure according to any of the claims 1-3, characterized in that: be provided with three wires on the auxiliary reinforcement, wherein:
the three conducting wires are arranged along the length direction of the auxiliary reinforcing steel bar; and is
The sensor is arranged at the bottom of the lead, and the plug is arranged at the top of the lead.
5. The linac radiation treatment room structure according to claim 4, characterized in that: and two supporting ribs are arranged at the bottom of each cooling pipe, and the supporting ribs are bound and fixed with the cooling pipes.
6. The linac radiation treatment room structure according to claim 1, characterized in that: still include radiation protection concrete and mortar, wherein:
the components of the mortar are the same as those of the radiation-proof concrete, and the mortar is laid on the top of the outer wall guide wall;
the radiation-proof concrete is used for pouring the wall body and the top plate.
7. A linac radiation treatment room structure according to claim 6, characterized in that: the radiation-proof concrete layer is paved on the plastic film layer, and the cotton felt layer covers the plastic film layer.
8. A linac radiation treatment room structure according to claim 1, characterized in that: a groove is reserved at the top of the outer wall guide wall concrete, and a water stop steel plate is arranged on one side of the groove.
9. A construction method of a linear accelerator radiotherapy room structure is characterized by comprising the following steps: the method comprises the following steps:
s1: before the construction of the wall body and the top plate of the linear accelerator radiotherapy room, the construction of the bottom plate and the outer wall guide wall, the construction of the basement bottom plate and the outer wall guide wall are completed simultaneously, a groove is reserved at the top of the concrete of the outer wall guide wall, a water stop steel plate is arranged for a water stop measure of a horizontal construction joint, and the top of the concrete is roughened and cleaned;
s2: after the bottom plate concrete is cured and reaches a certain strength, bouncing the wall position line;
s3: mounting wall body reinforcing steel bars, placing cooling pipes and a temperature measuring system in the wall body, wherein the cooling pipes are arranged in layers at equal intervals along the vertical direction of the wall body, and a support rib is placed at the bottom of each cooling pipe and is firmly bound and fixed with the cooling pipe;
s3: erecting a wall and top plate heat preservation template system, wherein the wall template is a heat preservation template system consisting of wood templates on two sides and an extruded sheet placed in the middle, the outer side of the wood template is stupefied by uniformly spaced battens in a vertical back mode, and finally, the heat preservation template system on the two sides of the wall is reinforced by adopting transverse scaffold pipes and water stop split bolts;
s4: erecting a full scaffold at the bottom of a top plate, padding a wood springboard at the bottom of a vertical rod of the full scaffold, mounting a top support at the top, adjusting the height of the top support to meet the supporting height of a final template, placing a main keel scaffold tube above the top support, placing a secondary keel batten in a direction vertical to the top of the main keel scaffold tube, and finally laying 4 layers of top plate wood templates on the secondary keel batten;
s5: installing top plate steel bars and placing a cooling pipe and a temperature measuring system in the top plate, wherein the upper layer and the lower layer of the top plate steel bars are supported by steel bar supports at equal intervals, the placing mode of the top plate cooling pipe and the temperature measuring system is the same as that of a wall body, and the cooling pipes are arranged in layers at equal intervals along the thickness of the top plate;
s6: after the other basement wall bodies and the top plate templates connected with the linear accelerator radiotherapy chamber are erected, concrete is poured together, before the radiation-proof concrete of the wall bodies and the top plate of the linear accelerator radiotherapy chamber is poured, a layer of mortar with the same components as the radiation-proof concrete is paved on the top of the outer wall guide wall, the radiation-proof concrete is poured in a layered and staggered manner in sequence, the pouring thickness of each layer is strictly controlled in the pouring process, the pouring work of the upper layer concrete is required to be completed before the initial setting of the lower layer concrete, the top plate concrete is poured 3 hours after the wall body concrete is poured, so that the wall body concrete can be primarily settled, a plastic film is immediately paved after the radiation-proof concrete of the top plate is leveled, and a layer of cotton felt is paved for covering;
s7: the concrete pouring temperature measuring method comprises the following steps that temperature measuring work is started after concrete pouring is completed for 10 hours, water is used for cooling after 24 hours, temperature measuring requirements are recorded once every 2 hours in a temperature rising stage, once every 4 hours in a temperature lowering stage, once every 4-8 hours in a week later, the monitoring concrete center temperature and the surface temperature difference are less than 25 ℃, and after the operation of a temperature lowering system, the temperature measuring method is used in a temperature lowering pipe 1: 1, recharging cement paste, curing after the radiation-proof concrete is poured, wherein a specially-assigned person is responsible for curing, the curing time is over 14d, and after the concrete strength reaches 100% and a template can be disassembled after the concrete strength is detected through physical resilience, the construction of the linear accelerator radiotherapy room structure is completed.
10. The construction method of the linear accelerator radiation therapy room structure according to claim 9, characterized in that: the temperature measuring system is provided with auxiliary steel bars which are longer than the wall body in height, three wires with sensors at the bottom and plugs at the top are arranged along the length direction of the auxiliary steel bars, and the auxiliary steel bars are vertically placed according to the positions of temperature measuring points, so that the positions of the three sensors are respectively positioned at the top, the middle and the bottom of the wall body;
the temperature measurement system vertically places auxiliary steel bars according to the position of a temperature measurement point, so that the positions of the three sensors are respectively positioned at the top, the middle and the bottom of the top plate.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112227771A (en) * | 2020-09-28 | 2021-01-15 | 中国辐射防护研究院 | Tumor radiotherapy center |
| CN113235650A (en) * | 2021-05-21 | 2021-08-10 | 中建七局安装工程有限公司 | Construction method for building template support system of underground linear accelerator machine room |
| CN113585721A (en) * | 2021-08-03 | 2021-11-02 | 中建五局华东建设有限公司 | Supporting system for supporting inner support and outer support in hospital linear accelerator area |
| CN113622661A (en) * | 2021-07-16 | 2021-11-09 | 中铁三局集团建筑安装工程有限公司 | Construction method of radiation-proof concrete hole reserved split bolt |
| CN115142567A (en) * | 2022-06-24 | 2022-10-04 | 中国建筑第八工程局有限公司 | Unconventional construction joint system special for linear accelerator machine room and construction method thereof |
| CN115370149A (en) * | 2022-09-23 | 2022-11-22 | 歌山建设集团有限公司 | Construction method of linear accelerator machine room |
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2020
- 2020-09-25 CN CN202011006215.6A patent/CN112031479A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112227771A (en) * | 2020-09-28 | 2021-01-15 | 中国辐射防护研究院 | Tumor radiotherapy center |
| CN113235650A (en) * | 2021-05-21 | 2021-08-10 | 中建七局安装工程有限公司 | Construction method for building template support system of underground linear accelerator machine room |
| CN113622661A (en) * | 2021-07-16 | 2021-11-09 | 中铁三局集团建筑安装工程有限公司 | Construction method of radiation-proof concrete hole reserved split bolt |
| CN113622661B (en) * | 2021-07-16 | 2022-08-12 | 中铁三局集团建筑安装工程有限公司 | Construction method of radiation-proof concrete hole reserved split bolt |
| CN113585721A (en) * | 2021-08-03 | 2021-11-02 | 中建五局华东建设有限公司 | Supporting system for supporting inner support and outer support in hospital linear accelerator area |
| CN115142567A (en) * | 2022-06-24 | 2022-10-04 | 中国建筑第八工程局有限公司 | Unconventional construction joint system special for linear accelerator machine room and construction method thereof |
| CN115370149A (en) * | 2022-09-23 | 2022-11-22 | 歌山建设集团有限公司 | Construction method of linear accelerator machine room |
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