CN1090709C - Jointing method for telescopic U-steel overlap sections of support - Google Patents
Jointing method for telescopic U-steel overlap sections of support Download PDFInfo
- Publication number
- CN1090709C CN1090709C CN98115818A CN98115818A CN1090709C CN 1090709 C CN1090709 C CN 1090709C CN 98115818 A CN98115818 A CN 98115818A CN 98115818 A CN98115818 A CN 98115818A CN 1090709 C CN1090709 C CN 1090709C
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- China
- Prior art keywords
- shaped steel
- deck
- overlap joint
- column leg
- steel column
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- Expired - Fee Related
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- Clamps And Clips (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The present invention discloses a connection method for overlapping sections of a U-shaped steel shrinkable supporting frame, which has the technical scheme that the tilting wedge surface of an upper ear clamp and the tilting wedge surface of a lower ear clamp are engaged for forming a clamp ring which is sheathed on an overlapping section of an arched beam; then, a clamp seat is sheathed on the overlapping section of the arched beam and is butted on the rear surface of the clamp ring; then, post legs from the inner side of the supporting frame are overlapped with the arched beam; the end head of the post leg overlapping section is inserted into the clamp seat, and the connection of the overlapping sections of the supporting frame is realized; when the supporting frame receives large pressure of surrounding rock of a tunnel, the clamp ring slides, the post legs rotate to the inner side of the supporting frame in the radial direction, and damage of the supporting frame is prevented.
Description
The present invention relates to a kind of metallic support overlap joint segment connecting method, especially a kind of U shaped steel compressibile support overlap joint segment connecting method.
Current, the overlap joint segment connecting method that is used for supporting roadway surrounding rock U shaped steel compressibile support mainly is by the bolt card cable support overlap joint section to be snapped together, under shoulder bed effects, when the support axial force overlaps the frictional resistance of section greater than card cable chucking after-poppet, support can contract, but this support method of attachment support often occurs and refuses the phenomenon that contracts after the distortion of support overlap joint section, cause the serious or damage of deformation of timbering, in addition, because card cable bolt rust is dead, when this support of dismounting, increase difficulty.
The object of the present invention is to provide a kind of support of can realizing to contract, the method for attachment of the U shape steel bracket overlap joint section that the stent strut leg can connect to the non-bolt chucking of the inboard radial direction revolution of support certain angle again.
Technical scheme of the present invention is at first with after two last ear cards that have an interlock inclination wedge surface mutually and the mutual interlock of following ear card and be locked on the overlap joint section position of U shaped steel arched girder, thereby constitute a snap ring that is locked on U shaped steel arched girder overlap joint section, to have the deck that stops tongue again is inserted in from U shaped steel arched girder overlap joint section termination, deck stops that with it tongue withstands the following ear card of this snap ring after being enclosed within U shaped steel arched girder overlap joint section, afterwards, U shaped steel arched girder last, U steel column leg is following, the overlap joint section of U shaped steel arched girder and U steel column leg is overlaped up and down according to the same opening direction of U shaped steel, and a U steel column leg overlap joint section upper end both wings ear inserted to withstand in the deck stop on the tongue, make and have the gap below deck and the U steel column leg both wings ear, when roadway surrounding rock compressing support, when making support force, on the deck stop tongue head under the power effect of the top of U steel column leg down the ear card along on, the interlock wedge surface of following ear card moves, because it is last, moving mutually of following ear card interlock wedge surface, thereby will be by last, the snap ring that following ear card constitutes is clamped on the U shaped steel arched girder, reach each linkage section chucking purpose of connecting of support, when deformation of the surrounding rock in tunnel is big, U steel column leg can deck be hinged to the inboard radial direction revolution of support then, during the frictional resistance after if the support axial force tightens greater than this snap ring, snap ring will slide on U shaped steel arched girder, thereby reach the adjustment supporting structure, can contract and allow the purpose of pressure.
For guaranteeing practical function of the present invention, after U steel column leg penetrates in the deck that is enclosed within on the U shaped steel arched girder overlap joint section, gap between below deck and the U steel column leg both wings ear, to directly influence U steel column leg is hinged to the rotating angle of the inboard radial direction of support with deck, and U steel column leg is directly proportional with this gap to the rotating angle of the inboard radial direction of support.
Realized after the invention process that U shaped steel compressibile support overlap joint section non-bolt snap ring connects; snap ring that is made of upper and lower ear card and deck are installed, convenient disassembly; especially effect is more remarkable under the easy-to-rust environment; and U steel column leg can deck be hinged to the inboard radial direction revolution of this support; and when frictional resistance that the support axial force produces greater than the snap ring clamping force; snap ring will slide on U shaped steel arched girder; thereby reaching support allows and press to adjust; avoid occurring the stress concentration phenomenon, protective cradle is not damaged.
Below in conjunction with accompanying drawing the embodiment of the invention is described in further detail.
Accompanying drawing 1 is to realize the ear card front view of going up of the present invention
Accompanying drawing 2 is to realize the ear card lateral view of going up of the present invention
Accompanying drawing 3 is to realize ear card front view down of the present invention
Accompanying drawing 4 is to realize ear card lateral view down of the present invention
Accompanying drawing 5 is to realize deck front view of the present invention
Accompanying drawing 6 is to realize deck lateral view of the present invention
Accompanying drawing 7 is to realize U shaped steel compressibile support overlap joint segment connecting method schematic diagram of the present invention.
By Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7 as can be known, last ear card 1, following ear card 2 utilizes it to constitute snap ring after mutual interlock of inclination wedge surface of interlock mutually and is locked on the overlap joint section position of U shaped steel arched girder 3, to have the deck 4 that stops tongue afterwards is inserted in from the termination of U shaped steel arched girder 3 overlap joint sections, and make it stop that tongue withstands down on the rear end face of ear card 2, again the overlap joint section of U shaped steel arched girder 3 and the overlap joint section of U steel column leg 5 are overlaped up and down by the same opening direction of U shaped steel, then, the both wings ear of U steel column leg 5 overlap joint section upper end is inserted in the deck 4 and withstands on stop on the tongue, make deck 4 below U steel column leg 5 both wings ears, have the gap, thereby finished the method for attachment of this U shaped steel compressibile support overlap joint section, for guaranteeing that U steel column leg 5 is hinged angle of revolution to the inboard radial direction of support with deck 4, can make the gap between following and deck 4 bottoms top of U steel column leg 5 both wings ears, U steel column leg 5 is directly proportional with this gap to the angle of revolution of the inboard radial direction of support.
Claims (2)
1, a kind of U shaped steel compressibile support overlap joint segment connecting method, it is characterized in that: have the last ear card (1) of interlock inclination wedge surface mutually with two earlier, following ear card (2) is mutually after the interlock and be locked on the overlap joint section position of U shaped steel arched girder (3), to have the deck (4) that stops tongue again is inserted in from the termination of U shaped steel arched girder (3) overlap joint section, after deck (4) is enclosed within U shaped steel arched girder (3) overlap joint section, it stops that tongue withstands down ear card (2), afterwards with U shaped steel arched girder (3) last, U steel column leg (5) is following, the overlap joint section of U shaped steel arched girder (3) and U steel column leg (5) is overlaped up and down according to the same opening direction of U shaped steel, and in the upper end insertion deck (4) with U steel column leg (5) overlap joint section, withstand on and stop on the tongue, make deck (4) below U steel column leg (5) both wings ear, have the gap, deck (4) stops that tongue heads on following ear card (2) along last under the power effect of the top of U steel column leg (5), the inclination interlock wedge surface of following ear card moves, will be by last, the snap ring that following ear card constitutes is clamped on the U shaped steel arched girder (3), and U steel column leg (5) can deck (4) be hinged to the inboard radial direction revolution of support.
2, U shaped steel compressibile support overlap joint segment connecting method according to claim 1, it is characterized in that: the gap between below deck (4) and U steel column leg (5) the both wings ear directly influences the anglec of rotation of U steel column leg (5), and U steel column leg (5) is directly proportional with this gap to the rotating angle of the inboard radial direction of support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98115818A CN1090709C (en) | 1998-07-14 | 1998-07-14 | Jointing method for telescopic U-steel overlap sections of support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98115818A CN1090709C (en) | 1998-07-14 | 1998-07-14 | Jointing method for telescopic U-steel overlap sections of support |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1241678A CN1241678A (en) | 2000-01-19 |
| CN1090709C true CN1090709C (en) | 2002-09-11 |
Family
ID=5224773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98115818A Expired - Fee Related CN1090709C (en) | 1998-07-14 | 1998-07-14 | Jointing method for telescopic U-steel overlap sections of support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1090709C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103046936A (en) * | 2012-12-09 | 2013-04-17 | 山西鑫源机械制造有限公司 | 25U-type steel arch hoop |
| CN103277119A (en) * | 2013-05-24 | 2013-09-04 | 山东科技大学 | Double-beam circular-ring-embedded contractible support and method for using same |
| CN103953360B (en) * | 2014-04-18 | 2016-06-29 | 湖南科技大学 | A kind of U-shaped steel for deep roadway with large deformation and the collaborative supporting construction of anchor cable |
| CN105649657B (en) * | 2016-03-09 | 2018-04-03 | 中国矿业大学 | A kind of U-shaped steel support with flexible steady knot support |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85202922U (en) * | 1985-07-18 | 1986-06-04 | 中国矿业学院 | Retractable u-type steel prop with multiple swing joints |
| CN1005719B (en) * | 1984-09-14 | 1989-11-08 | 格利-埃塞克斯公司 | Composition of heat-resistant polymer resin |
| CN2101110U (en) * | 1991-07-24 | 1992-04-08 | 王海亮 | Telescopic support connecting piece made of I-steel |
-
1998
- 1998-07-14 CN CN98115818A patent/CN1090709C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1005719B (en) * | 1984-09-14 | 1989-11-08 | 格利-埃塞克斯公司 | Composition of heat-resistant polymer resin |
| CN85202922U (en) * | 1985-07-18 | 1986-06-04 | 中国矿业学院 | Retractable u-type steel prop with multiple swing joints |
| CN2101110U (en) * | 1991-07-24 | 1992-04-08 | 王海亮 | Telescopic support connecting piece made of I-steel |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1241678A (en) | 2000-01-19 |
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