CN2714630Y - Concrete brick of manhole - Google Patents
Concrete brick of manhole Download PDFInfo
- Publication number
- CN2714630Y CN2714630Y CN 200420066174 CN200420066174U CN2714630Y CN 2714630 Y CN2714630 Y CN 2714630Y CN 200420066174 CN200420066174 CN 200420066174 CN 200420066174 U CN200420066174 U CN 200420066174U CN 2714630 Y CN2714630 Y CN 2714630Y
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- building block
- live part
- face
- protuberance
- height
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Abstract
The utility model relates to a concrete brick of manhole, which comprises a curved brick effective part, a convex part and a concave part which are mutually matched. The brick effective part which is a part of a hollow cylinder comprises a top surface, a bottom surface, two end surfaces, an intrados and an extrados; the convex part and the concave part are respectively formed into shape on the end surfaces; the convex part and the concave part of each brick can be mutually matched and plugged. A plurality of bricks can be mutually plugged to build a well hole wall body with an inner diameter of 600 mm to 2000 mm; the angle of the included angle omega of cambered centers of the brick effective part is from 5 DEG to 90 DEG; the height of the building block effective part is from 120 mm to 350 mm, and the width of the building block effective part is 100 mm to 300 mm. The wall body built by the concrete bricks has the advantages of simple use, high work efficiency and simple mould design, and saves design cost.
Description
Technical field:
The utility model relates to a kind of concrete block of building by laying body of wall, particularly relates to a kind of concrete block of building by laying the manhole body of wall of arc.
Background technology:
Building by laying hollow cylinder shape building at present, the building block of using in the process such as manhole of underground municipal pipeline etc. exists many deficiencies.The application number of notice of authorization on the 25th is 95229523.7 utility model patent as State Intellectual Property Office's in September, 1996, a kind of inserted building block is disclosed, constitute by building face up and down, on build face parallel groove arranged, the face of building down have with on build the projection that the parallel groove of face is complementary, building block is perpendicular grooves on one side, and another side is the tenon that is complementary with perpendicular grooves, and the inside and outside wall angle of arc building block is 45-90 °; The inside and outside wire casing that also is provided with of building block.The building block of this structure has following shortcoming:
1, the workman is difficult to grasp bonding mortar use amount in work progress, thereby causes the face of building excessive with the matching error of building face projection and groove down, and the processing of need often doing over again takes time and effort;
2, four sides of the arc building block of this structure have projection or groove respectively, and interior outside has wire casing, and promptly six three-dimensional faces all have design content, and the mould design is very complicated, the manufacturing cost height.
Summary of the invention:
The technical problems to be solved in the utility model is the deficiency that overcomes above-mentioned prior art, a kind of improved manhole concrete block is provided, especially be fit to be used for building by laying the wellhole body of wall, not only use convenient, can effectively reduce labor strength, increase work efficiency, and the mould of manufacturing building block is fairly simple, saves manufacturing cost.
The manhole concrete block that provides according to the utility model, comprise the building block live part of arc and the protuberance that matches each other and the depressed part that take shape in described building block live part two ends, described building block live part is the part of hollow cylinder, comprise an end face, one bottom surface, biend, one intrados and an extrados, described end face and bottom surface are all perpendicular to this hollow cylinder circle central axis, described biend is respectively the part on two planes of passing this hollow cylinder circle central axis, described protuberance and depressed part take shape in respectively on the biend of described building block live part, the protuberance of each described building block and depressed part can be pegged graft mutually, it is characterized in that: a plurality of described building blocks are pegged graft mutually and can be built by laying the wellhole body of wall that internal diameter is 600mm～2000mm; The angle of the arc centers angle Ω of described building block live part is 5 °～90 °; The height H of described building block live part is 120mm～350mm, and width W is 100mm～300mm.
Described protuberance is positioned at the middle part of an end face of described building block, and the height of described protuberance is identical with the height of described building block; The horizontal section of described protuberance is an approximate trapezoid, the top margin of described approximate trapezoid and the extended line on base all pass the circle central axis of described arc building block, the top margin length of described approximate trapezoid is 30mm～40mm, base length is 45mm～55mm, height is defined by top margin and base extended line angle α, and the scope of α is 3 °～7 °; Described depressed part is positioned at the middle part of the other end of described building block, described depressed part height is identical with the height of described building block, the horizontal section of described depressed part is an approximate trapezoid, the top-direction of described approximate trapezoid is consistent with the top of described protuberance, the top margin of described approximate trapezoid and the extended line on base all pass the circle central axis of described arc building block, the top margin length of described approximate trapezoid is 40mm～50mm, base length is 55mm～65mm, height is defined by top margin and base extended line angle β, and the scope of β is 5 °～10 °.
On at least one end face of described building block live part, the position that is positioned at the both sides of described protuberance or depressed part forms at least one rib-like or convex dot shape waterline.The horizontal section of described rib-like waterline is semicircle, radius R
3Be 3mm～15mm.The base area of described convex dot shape waterline accounts for 5%～50% of the described protuberance at its place or depressed part end faces of both sides area.
The arc edge of the end face of described building block and/or bottom surface has step-like or hypotenuse shape mortar joint along arc direction.The outer arcuate edge of the end face of described building block and/or bottom surface has step-like or hypotenuse shape mortar joint along arc direction.The high F of described step-like or hypotenuse shape mortar joint
1Be 3mm～7mm, bottom side length F
2Be 5mm～15mm.
The inside of described building block forms the lightening hole of hollow cylinder shape, and the volume of described lightening hole accounts for 5%～30% of described building block volume.Described lightening hole is positioned at the end face sealing of the end face of described building block, is positioned at the other end opening of the bottom surface of described building block.Height H 1 between one end face of the sealing of described lightening hole and the end face of described building block is 10mm～50mm.
The relative prior art of manhole concrete block that provides according to the utility model has following advantage:
1, since only both ends of the surface form protuberance and depressed part, the mould design of therefore making this building block is fairly simple, reduces production costs, and is fit to promote the use of; Easy to use in the work progress in addition, can effectively reduce working strength of workers, improve efficiency of construction;
2, owing to have waterline, can adjust construction error easily, applicability is strong;
3, owing to have grey crack structure, thus the plastering material adhesion-tight, can not cause decortication, body of wall is solid, and barrier performance is good;
4, because inside forms lightening hole, thereby can save manufactured materials, and can alleviate the weight of building block, be convenient to fetch and carry, can also strengthen the incubation and thermal insulation function of wellhole body of wall.
Description of drawings:
The overall structure schematic diagram of a kind of embodiment of providing according to the utility model is provided Fig. 1;
Fig. 2, Fig. 3 are the vertical cross-section diagram of two kinds of structures embodiment illustrated in fig. 1;
Fig. 4 is a upward view embodiment illustrated in fig. 1;
The upward view of the another kind of embodiment that provides according to the utility model is provided Fig. 5;
The upward view of another embodiment of providing according to the utility model is provided Fig. 6;
The upward view of another embodiment of providing according to the utility model is provided Fig. 7.
Wherein:
10,50,60,70 are the manhole concrete block among the embodiment,
1-building block live part, the 2-protuberance, the 3-depressed part, the 11-end face, the 12-bottom surface,
The 13-end face, the 15-intrados, the 16-extrados, the 17-waterline, the 18-mortar joint,
The 19-lightening hole, 20-lightening hole end face, 31-building block live part center camber line
The specific embodiment:
Referring to Fig. 1, the manhole concrete block 10 that provides according to the utility model, the protuberance that matches each other 2 and the depressed part 3 that comprise the building block live part 1 of arc and take shape in described building block live part 1 two ends, described building block live part 1 is the part of hollow cylinder, comprise an end face 11, one bottom surface 12, biend 13, one intrados 15 and an extrados 16, described end face 11 and bottom surface 12 are all perpendicular to this hollow cylinder circle central axis, described biend 13 is respectively the part on two planes of passing this hollow cylinder circle central axis, described protuberance 2 and depressed part 3 take shape in respectively on the biend 13 of described building block live part 1, the protuberance 2 and the depressed part 3 of each described building block 10 can be pegged graft mutually, it is characterized in that: a plurality of described building block 10 mutual grafting can be built by laying the wellhole body of wall that internal diameter is 600mm～2000mm; The angle of the arc centers angle Ω of described building block live part 1 more than or equal to 5 °, be less than or equal to 90 °; The height H of described building block live part 1 is 120mm～350mm, and width W is 100mm～300mm.Owing to only on the both ends of the surface 13 of described building block live part 1, form protuberance 2 and depressed part 3,12 of end face 11 and bottom surfaces do not have design content, thereby in work progress no longer often need the do over again use amount of the adhesive mortar of handling end face 11 and bottom surface 12 of workman, thereby it is easy to use, can effectively increase work efficiency, the mould design of making this building block in addition is also fairly simple, can save design cost.
As Fig. 1-shown in Figure 4, the angle of the arc centers angle Ω of described building block live part 1 more than or equal to 5 °, be less than or equal to 90 °, the height H of described building block 10 is 120mm～350mm, width W is 100mm～300mm, and the protuberance 2 of a plurality of described building blocks 10 and depressed part 3 mutual grafting can be built by laying the wellhole body of wall that internal diameter is 600mm～2000mm.Preferred embodiment mean camber line of the present utility model center angle Ω=39 °, the high H=170mm of building block 10 live parts, wide W=140mm, intrados radius R
1=520mm, the extrados radius R
2=660,9 described building blocks 10 can be built by laying the wellhole body of wall that internal diameter is 1040mm.Described building block live part 1 is meant the part of described building block 10 except that protuberance 2 and depressed part 3; The arc centers angle Ω of described building block live part 1 is meant the angle between two planes of the circle central axis that passes described building block 10 at both ends of the surface 13 places of described building block live part 1; The height H of described building block 10 is meant the end face 11 of described building block live part 1 and the vertical distance between the bottom surface 12, and the width W of building block 10 is meant the distance between its intrados 15 and the extrados 16, i.e. extrados radius R
2With the intrados radius R
1Difference.The radius R of described intrados 5
1It promptly is the inside radius of wellhole.
Described protuberance 2 is positioned at the middle part of an end face 13 of described building block live part 1, the height of described protuberance 2 is identical with the height H of described building block 10, the horizontal section of described protuberance 2 is an approximate trapezoid, the top margin of described approximate trapezoid and the extended line on base all pass the circle central axis of described arc building block 10, top margin length is 30mm～40mm, base length is 45mm～55mm, and height is defined by top margin and base extended line angle α, and the scope of α is 3 °～7 °; Described depressed part 3 is positioned at the middle part of the other end 13 of described building block live part 1, the height of described depressed part 3 is identical with the height H of described building block 10, the horizontal section of described depressed part 3 is an approximate trapezoid, the top coupling of the top-direction of described approximate trapezoid and described protuberance 2, the extended line on its top margin and base all passes the circle central axis of described arc building block 10, the top margin length of described approximate trapezoid is 40mm～50mm, base length is 55mm～65mm, height is defined by its top margin and base extended line angle β, and the scope of β is 5 °～10 °.In preferred embodiment of the present utility model, the top margin length of the horizontal section of described lug boss 7 is 34mm, and base length is 50mm, and the angle α of top margin and base extended line is 5 °; The top margin length of the horizontal section of described depressed part 8 is 44mm, and base length is 60mm, and the angle β of top margin and base extended line is 8 °.When described building block is pegged graft mutually, the top margin of the corresponding described depressed part 3 of the top margin of described lug boss 2, the base of the corresponding described depressed part 3 in the base of described lug boss 2, be the top-direction unanimity, the profile of described depressed part 3 is slightly larger than the profile of described protuberance 2, to guarantee when protuberance 2 mates with depressed part 3, certain grafting slit is arranged between the two, can insert jointing materials such as cement mortar, make to engage more firmly between building block and the building block, barrier performance is better.
On at least one end face 13 of described building block live part 1, the position that is positioned at the both sides of described protuberance 2 or depressed part 3 forms at least one rib-like or convex dot shape waterline 17; The horizontal section of described rib-like waterline 17 is semicircle, radius R
3Be 3mm～15mm; The base area of described convex dot shape waterline accounts for 5%～50% of the described protuberance at its place or depressed part end faces of both sides area.In the utility model preferred embodiment, the both sides of described protuberance 2 form rib-like waterline 17, and its horizontal section is semicircle, radius R
3=10mm.Described waterline 17 is mainly used to adjust the construction error when building by laying the wellhole body of wall.In the present embodiment, the arc centers angle Ω of building block live part 1 is 39 °, if 9 described building blocks 10 are used for forming a circumference that does not have the slit, the borehole circumference cumulative errors reach-9 ° of (360-39 * 9=9).Slit when this error can be pegged graft with depressed part 3 by the protuberance between adjustment building block 10 and the building block 10 2 is regulated: described waterline 17 takes shape on described protuberance 2 or described depressed part 3 end faces of both sides 13, guarantee that the height with the rib of waterline 17 or salient point is the same at least for grafting slit between building block 10 and the building block 10, can further remedy described-9 ° error if artificially increase the grafting slit again, if but the slit is excessive, cumulative errors may be greater than 0, even reach positive error, this moment is general smaller or thin because of waterline 17, can be rooted out very easily, thereby can reach the purpose in compression grafting slit, round-off error makes error near 0.Described waterline 17 can be molded on described protuberance 2 end faces of both sides 13, also can be molded on described depressed part 3 end faces of both sides 13, can be shaped to rib, also can be shaped to salient point, can have one also can have two.That the cross section of rib or salient point can be done is circular, rectangle, multiple shape such as trapezoidal.
As Fig. 1-shown in Figure 4, the end face 11 of described building block live part 1 and/or the arc edge of bottom surface 12 have step-like or hypotenuse shape mortar joint 18 along arc direction, the end face 11 of described building block live part 1 and/or the outer arcuate edge of bottom surface 12 have step-like or hypotenuse shape mortar joint 18 along arc direction, the high F of described step-like or hypotenuse shape mortar joint 18
1Be 3mm～7mm, bottom side length F
2Be 5mm～15mm.In the preferred embodiment of the present utility model as shown in Figure 2, the arc edge of the bottom surface 12 of described building block live part 1 and outer arcuate edge all have step-like mortar joint 18 along arc direction, its high F
1=5mm, bottom side length F
2=10mm.Fig. 3 is another program of preferred embodiment of the present utility model, and the arc edge of the bottom surface 12 of described building block live part 1 and outer arcuate edge all have hypotenuse shape mortar joint 18 along arc direction, mortar joint 18 high F
1=5mm, bottom side length F
2=10mm.Described mortar joint 18 can hold the unnecessary mortar that comes out when building block 10 is pushed up and down, also can insert mortar, floating again, compacting make that the wellhole surface of wall is beautiful and clean on the one hand, can guarantee the bond strength between building block and the building block and the sealing in slit on the other hand, prevent wall leakage; If the wellhole body of wall whitewashes body of wall after building by laying and finishing in addition, mortar joint can play the effect that strengthens adhesive power, make whitewash thing such as firm attachment such as cement mortar at surface of wall, make body of wall firm, barrier performance is better.
As Fig. 2, Fig. 3 and shown in Figure 4, the inside of described building block live part 1 forms the lightening hole 19 of hollow cylinder shape, the volume of described lightening hole 19 account for described building block live part 1 volume 5%～30%, one end face, 20 sealings of the end face that is positioned at described building block live part 1 11 of described lightening hole 19, be positioned at the other end opening of the bottom surface 12 of described building block live part 1, the height H between an end face 20 of the sealing of described lightening hole 19 and the end face 11 of described building block live part 1
1Be 10mm～50mm.In preferred embodiment of the present utility model, the inside of building block live part 1 forms two described lightening holes 19, be positioned at an end face 20 sealings of the end face 11 of described building block live part 1, be positioned at the other end opening of the bottom surface 12 of described building block live part 1, the height H between an end face 20 of described lightening hole 19 and the end face 11 of described building block live part 1
1Be 20mm, the two ends of the horizontal section of described lightening hole 19 are semicircle, its radius R
3=30mm, the center of circle is the arc hollow cylinder between two semicircles on the center of described building block live part 1 camber line 31.Lightening hole 19 can alleviate the weight of building block on the one hand, makes things convenient for the workman to fetch carrying, on the other hand can economical with materials, also strengthened the incubation and thermal insulation function of wellhole body of wall in addition.Lightening hole 19 can be enclosed in the inside (such as the inside of aerated materials being inserted building block live part 1) of building block live part 1, also can make the shape of sealing of an end opening one end or the equal opening in two ends according to actual conditions, if building block 10 volumes own are very little, can there be lightening hole yet.What lightening hole was done can not be too big, can not be too little, and lightening hole is too big, and such as 30% of the volume that surpasses building block live part 1, though saved material, building block 10 is reduced by force intensity, and wall quality is difficult to guarantee; Lightening hole is too little, has increased die manufacturing cost but does not play the purpose of saving material.
The difference of the preferred embodiment of preferred embodiment of the present utility model as shown in Figure 5 and Fig. 1-shown in Figure 4 is: the arc centers angle Ω of the live part of building block 50 is 29 °, also can build by laying the wellhole body of wall that internal diameter is 1040mm after 12 described building blocks 50 combinations; The both sides of the depressed part 3 of building block 50 form rib-like waterline 17, and its cross section is semicircle, and radius is 5mm; The intrados edge of the end face 11 of the live part of building block 50 forms step-like mortar joint 18 along arc direction, its height F
1=5mm, length F
2=10mm; Building block 50 inside form a lightening hole 19, and its two ends, cross section are semicircle, the radius R of semicircle
3=30mm, its center of circle is on the camber line of the center of building block 50; It between two semicircles arc hollow cylinder.The further feature of building block 50 is the same with the feature of Fig. 1-building block 10 embodiment illustrated in fig. 4.
The difference of the preferred embodiment of preferred embodiment of the present utility model as shown in Figure 6 and Fig. 1-shown in Figure 4 is: the arc centers angle Ω of the live part of building block 60 is 19 °, also can build by laying the wellhole body of wall that internal diameter is 1040mm after 18 described building blocks 60 combinations; The extrados edge of the end face 11 of building block 60 forms step-like mortar joint 18 along arc direction, its height F
1=5mm, length F
2=10mm; Building block 60 inside form a lightening hole 19, and its cross section is circular, radius R
3=30mm, its center of circle overlaps with the mid point of the center camber line of building block live part 1.The further feature of building block 60 is the same with the feature of Fig. 1-building block 10 embodiment illustrated in fig. 4.
The difference of the preferred embodiment of preferred embodiment of the present utility model as shown in Figure 7 and Fig. 1-shown in Figure 4 is: the arc centers angle Ω of the live part of building block 70 is 10 °, also can build by laying the wellhole body of wall that internal diameter is 1040mm after 36 described building blocks 70 combinations; Building block 70 does not have mortar joint.The further feature of building block 70 is the same with the feature of Fig. 1-building block 10 embodiment illustrated in fig. 4.
In the practice of construction process, building block 70 among the building block 60 among the building block 50 among building block 10 among the embodiment of Fig. 1-shown in Figure 4 and the embodiment shown in Figure 5, the embodiment shown in Figure 6, the embodiment shown in Figure 7 etc. can be used in combination.
Claims (10)
1, a kind of manhole concrete block, comprise the building block live part (1) of arc and take shape in the protuberance that matches each other (2) and the depressed part (3) at described building block live part (1) two ends, described building block live part (1) is the part of hollow cylinder, comprise an end face (11), one bottom surface (12), biend (13), one intrados (15) and an extrados (16), described end face (11) and described bottom surface (12) are all perpendicular to this hollow cylinder circle central axis, described biend (13) is respectively the part on two planes of passing this hollow cylinder circle central axis, described protuberance (2) and depressed part (3) take shape in respectively on the biend (13) of described building block live part (1), the protuberance (2) and the depressed part (3) of each described building block (10) can be pegged graft mutually, it is characterized in that: a plurality of described building blocks (10) grafting mutually can be built by laying the wellhole body of wall that internal diameter is 600mm～2000mm; The angle of the arc centers angle Ω of described building block live part (1) is 5 °～90 °; The height H of described building block live part (1) is 120mm～350mm, and width W is 100mm～300mm.
2, manhole concrete block as claimed in claim 1, it is characterized in that: described protuberance (2) takes shape in the middle part of a described end face (13) of described building block live part (1), the height of described protuberance (2) is identical with the height H of described building block live part (1), the horizontal section of described protuberance (2) is an approximate trapezoid, the top margin of described approximate trapezoid and the extended line on base be the circle central axis by described arc building block live part (1) all, the top margin length of described approximate trapezoid is 30mm～40mm, base length is 45mm～55mm, its height is defined by top margin and base extended line angle α, and the scope of α is 3 °～7 °; Described depressed part (3) takes shape in the centre of another described end face (13) of described building block live part (1), the height of described depressed part (3) is identical with the height H of described building block live part (1), the horizontal section of described depressed part (3) is an approximate trapezoid, the top-direction of described approximate trapezoid is consistent with the top-direction of described protuberance (2), the top margin of described approximate trapezoid and the extended line on base be the circle central axis by described arc building block live part (1) all, the top margin length of described approximate trapezoid is 40mm～50mm, base length is 55mm～65mm, its height is defined by top margin and base extended line angle β, and the scope of β is 5 °～10 °.
3, manhole concrete block as claimed in claim 1 or 2 is characterized in that: the position that the both sides of described protuberance (2) or depressed part (3) were gone up, were positioned at least one end face (13) at described building block live part (1) forms at least one rib or convex dot shape waterline (17).
4, manhole concrete block as claimed in claim 3 is characterized in that: the horizontal section of described rib-like waterline is semicircle, radius R
3Be 3mm～15mm.The base area of described convex dot shape waterline accounts for 5%～50% of the described protuberance (2) at its place or depressed part (3) end faces of both sides area.
5, manhole concrete block as claimed in claim 2 is characterized in that: the end face (11) of described building block live part (1) and/or the arc edge of bottom surface (12) have step-like or hypotenuse shape mortar joint (18) along arc direction.
6, manhole concrete block as claimed in claim 2 is characterized in that: the end face (11) of described building block live part (1) and/or the outer arcuate edge of bottom surface (12) have step-like or hypotenuse shape mortar joint (18) along arc direction.
7, as claim 5 or 6 described manhole concrete blocks, it is characterized in that: the high F of described step-like or hypotenuse shape mortar joint (18)
1Be 3mm～7mm, bottom side length F
2Be 5mm～15mm.
8, manhole concrete block as claimed in claim 1 or 2 is characterized in that: the inside of described building block live part (1) forms lightening hole (19), and the volume of described lightening hole (19) accounts for 5%～30% of described building block (1) volume.
9, manhole concrete block as claimed in claim 8, it is characterized in that: an end face (20) of the end face (11) that is positioned at described building block live part (1) of described lightening hole (19) seals, and is positioned at the other end opening of the bottom surface (12) of described building block live part (1).
10, manhole concrete block as claimed in claim 9 is characterized in that: the height H between the end face (11) of an end face (20) of the sealing of described lightening hole (19) and the described building block live part of distance (1)
1Be 10mm～50mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420066174 CN2714630Y (en) | 2004-06-22 | 2004-06-22 | Concrete brick of manhole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420066174 CN2714630Y (en) | 2004-06-22 | 2004-06-22 | Concrete brick of manhole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2714630Y true CN2714630Y (en) | 2005-08-03 |
Family
ID=34873506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420066174 Expired - Lifetime CN2714630Y (en) | 2004-06-22 | 2004-06-22 | Concrete brick of manhole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2714630Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007031023A1 (en) * | 2005-09-16 | 2007-03-22 | Bin Liang | A shaft-headed masonry module |
| CN106270329A (en) * | 2016-08-24 | 2017-01-04 | 安徽华骅桥梁设备制造有限公司 | A kind of high-speed rail bridge hyperbola pier cap steel form and the equipment of manufacture thereof |
| CN107489423A (en) * | 2017-10-20 | 2017-12-19 | 中冶建工集团有限公司 | A kind of construction method of assembled concrete square frame vertical shaft |
-
2004
- 2004-06-22 CN CN 200420066174 patent/CN2714630Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007031023A1 (en) * | 2005-09-16 | 2007-03-22 | Bin Liang | A shaft-headed masonry module |
| CN106270329A (en) * | 2016-08-24 | 2017-01-04 | 安徽华骅桥梁设备制造有限公司 | A kind of high-speed rail bridge hyperbola pier cap steel form and the equipment of manufacture thereof |
| CN107489423A (en) * | 2017-10-20 | 2017-12-19 | 中冶建工集团有限公司 | A kind of construction method of assembled concrete square frame vertical shaft |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20140622 Granted publication date: 20050803 |