CN210564571U - Interim inverted arch steelframe installation construction structures of adjustable - Google Patents
Interim inverted arch steelframe installation construction structures of adjustable Download PDFInfo
- Publication number
- CN210564571U CN210564571U CN201921117674.4U CN201921117674U CN210564571U CN 210564571 U CN210564571 U CN 210564571U CN 201921117674 U CN201921117674 U CN 201921117674U CN 210564571 U CN210564571 U CN 210564571U
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- inverted arch
- steel frame
- adjustable
- steel
- temporary inverted
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Abstract
The utility model discloses an interim invert steelframe installation and construction structures of adjustable, including adjustable anchor mechanism and jacking supporting mechanism, adjustable anchor mechanism is including the steel linkage plate, customization extension full screw rod and fixation nut, and jacking supporting mechanism includes hand formula screw jack, purpose-built nipple joint I-steel and support backing plate, and hand formula screw jack is placed between the adjustable anchor mechanism steel linkage plate of invert steelframe, adopts the adjustable anchor mechanism of manual fit jacking operation completion back nut anchor completion and interim invert steelframe other end and tunnel hole body steelframe to be connected and accomplish. Through the utility model discloses realize interim invert steelframe well and tunnel hole body steelframe and be connected the subsides, interim invert steelframe self atress back in advance with the invert subsides, do benefit to the follow-up reuse of interim invert steelframe.
Description
[ technical field ]
The utility model relates to a tunnel construction field, especially need to set up the construction method of interim invert steelframe installation after tunnel cave body excavates.
[ background art ]
At present, in a tunnel body supporting structure system, the problems that an inverted arch temporary supporting steel frame is not tightly attached to a tunnel body steel frame during installation and construction of the temporary inverted arch steel frame, a steel plate connector of the inverted arch temporary supporting steel frame is not tightly attached to the tunnel body steel frame, the inverted arch temporary supporting steel frame is not easy to disassemble, assemble and recycle and the like exist. The quality of interim inverted arch steelframe installation quality directly influences the tunnel body and struts system atress, influences tunnel body construction safety. The temporary inverted arch steel frame needs to be installed by adopting necessary and effective measures to reduce the gap between the inverted arch temporary support steel frame and the tunnel body steel frame and between the inverted arch temporary support steel frame and the self connecting steel plate joint, so that the repeated utilization rate is improved, the stress of the tunnel body construction support system is ensured to meet the design requirements to the maximum extent, and the safety and reliability of the whole tunnel construction process are ensured.
[ summary of the invention ]
The utility model provides an adjustable interim invert steelframe installation construction method.
In order to achieve the above purpose, the technical scheme of the utility model is that:
the utility model provides a interim invert steelframe installation construction structures of adjustable, includes:
a temporary inverted arch steel frame and a tunnel body steel frame;
an adjustable anchoring mechanism: the temporary inverted arch steel frame consists of a connecting steel plate, a screw rod and a fixing nut and is arranged between the adjacent left and right temporary inverted arch steel frames; i-shaped steel is arranged on the connecting surface of each temporary inverted arch steel frame, the connecting steel plate is firmly welded with the I-shaped steel, one side of each of the two temporary inverted arch steel frames is pre-connected with the hole body steel frame, and two sides of each temporary inverted arch steel frame are abutted against the hole body steel frame; four corresponding hole sites are arranged on the connecting steel plate, a screw rod penetrates through every two corresponding hole sites, fixing nuts are respectively arranged at two ends of the screw rod, and the connecting steel plate is in sliding connection along the screw rod when the fixing nuts and the screw rod are in a non-fixed state, so that the left and right adjustability of the anchoring mechanism is realized;
a jacking supporting mechanism: the hand-operated screw jack is placed between adjacent connecting steel plates of the adjustable anchoring mechanism of the temporary inverted arch steel frame.
Preferably, the connecting steel plate is punched to form a hole.
Preferably, the screw is a customized lengthened full screw.
Preferably, the jacking supporting mechanism is further provided with a specially-made short section I-steel support.
Preferably, the jacking support mechanism is further provided with a support backing plate, and when the support length of the special short section I-steel is insufficient, the support backing plate is 140 × 200 mm.
Preferably, the minimum length of the hand-operated screw jack is 168 mm.
The utility model has the main characteristics that: an adjustable anchoring mechanism and a jacking supporting mechanism are additionally arranged on the temporary inverted arch steel frame, the temporary inverted arch steel frame is connected with the tunnel body steel frame, and the temporary inverted arch steel frame is tightly connected with the temporary inverted arch steel frame, so that the stress requirement of the supporting structure is met; the temporary inverted arch steel frame is tightly attached to the inverted arch surface in the installation process, and the stress of the temporary inverted arch is not influenced by the gravity or vibration of the temporary inverted arch in the use process.
Adopt the utility model has the advantages of it is following:
(1) the connecting gap between the inverted arch temporary support steel frame and the tunnel body steel frame is reduced, so that the inverted arch temporary support steel frame and the tunnel body steel frame are closely attached to meet the stress requirement;
(2) reducing the connecting gap of the inverted arch temporary support steel frame connecting steel plate joint, so that the inverted arch temporary support steel frame connecting steel plate joint is closely attached to meet the stress requirement;
(3) the inverted arch temporary support steel frame is easy to disassemble and assemble in the subsequent construction process and is easy to reuse;
(4) adopt adjustable anchor mechanism and supporting mechanism dual guarantee between the interim invert steelframe, ensured tunnel shaft body construction overall process safe and reliable.
[ description of the drawings ]
FIG. 1 is a cross-sectional view of a temporary inverted arch at a joint steel plate;
FIG. 2 is a side view of a temporary inverted arch steel frame hand-operated screw jack support;
FIG. 3 is a rear side view of a temporary inverted arch steel frame provided with special short section I-steel and a supporting base plate.
The notation in the figure is:
the device comprises a temporary inverted arch steel frame 1, a connecting steel plate 2, a screw rod 3, a fixing nut 4, an I-shaped steel 5, a hole site 6, a hand-operated screw jack 7, a short section I-shaped steel support 8 and a support base plate 9.
[ detailed description of the invention ]
For the purpose of making the present invention more clear, its objects, principles and construction will be further clarified by the embodiments of the present invention, which are believed to be clear to those skilled in the art.
Use the utility model discloses can realize invert temporary support steelframe and hole body steelframe well and be connected the subsides, invert temporary support steelframe connect the steel sheet joint and connect the subsides, adopt adjustable anchor mechanism and the dual guarantee of supporting mechanism between the interim invert steelframe, furthest satisfies the design atress requirement, has ensured tunnel hole body construction overall process safe and reliable. Easy dismouting in the follow-up work progress of inverted arch temporary support steelframe, easy reuse has reduced the potential safety hazard, has guaranteed construction quality, has reduced construction cost.
The utility model provides a interim invert steelframe installation construction structures of adjustable, includes:
a temporary inverted arch steel frame and a tunnel body steel frame;
the adjustable anchoring mechanism comprises a connecting steel plate, a customized lengthened full screw and a fixing nut, four hole sites are arranged on the connecting plate in a stamping hole forming mode, and the connecting plate is firmly welded with the inverted arch steel frame I-steel;
the jacking supporting mechanism comprises a hand-operated screw jack, a specially-made short section I-shaped steel and a supporting base plate, the hand-operated screw jack is placed between the connection steel plates of the adjustable anchoring mechanism of the inverted arch steel frame, the manual cooperation jacking operation is adopted, the nut anchoring in the adjustable anchoring mechanism is completed, the other end of the temporary inverted arch steel frame is connected with the tunnel hole body steel frame, the hand-operated screw jack is taken out, the specially-made short section I-shaped steel is placed on the original hand-operated screw jack, and the supporting base plate is placed according to the size of a gap.
Example one
The installation and use mode of the adjustable temporary inverted arch steel frame is as follows:
welding one side of the processed connecting steel plate and the inverted arch temporary steel frame support I18I-shaped steel firmly; after the tunnel primary support tunnel body steel frame is installed, one side of each of the two parts of inverted arch temporary steel frames is pre-connected with the tunnel body steel frame.
As shown in fig. 2, the connecting part of the inverted arch temporary steel frame is pre-assembled with a customized lengthened full screw and a nut in place; placing a 2t hand-operated screw jack between the connecting steel plates of the adjustable anchoring mechanism of the temporary inverted arch steel frame, respectively placing the front end and the rear end of the hand-operated screw jack on the connecting steel plates, and manually matching jacking operation until the joint of the temporary inverted arch steel frame and the hole body steel frame and the temporary inverted arch steel frame are closely attached to the large part of the inverted arch. And (4) fastening the nut of the adjustable anchoring mechanism of the inverted arch temporary steel frame, loosening the hand-operated screw jack and taking out the hand-operated screw jack after checking that no error exists.
Placing a specially-made short section I-steel on the original hand-operated screw jack, and placing a 140 x 200mm supporting base plate and a 10 x 30mm steel plate stop block according to the size of a gap as shown in figure 3; and finishing the installation construction operation after checking that each component meets the requirement.
When the temporary inverted arch steel frame is dismantled, the supporting base plate and the short section I-shaped steel are dismantled, the nuts on the lengthened full-screw rods are loosened, and then the bolts at the joints of the holes and the hole body steel frame are taken down to complete the dismantling work.
Claims (6)
1. Adjustable temporary inverted arch steel frame installation and construction structure is characterized by comprising
A temporary inverted arch steel frame and a tunnel body steel frame;
an adjustable anchoring mechanism: the temporary inverted arch steel frame consists of a connecting steel plate, a screw rod and a fixing nut and is arranged between the adjacent left and right temporary inverted arch steel frames; i-shaped steel is arranged on the connecting surface of each temporary inverted arch steel frame, the connecting steel plate is firmly welded with the I-shaped steel, one side of each of the two temporary inverted arch steel frames is pre-connected with the hole body steel frame, and two sides of each temporary inverted arch steel frame are abutted against the hole body steel frame; four corresponding hole sites are arranged on the connecting steel plate, a screw rod penetrates through every two corresponding hole sites, fixing nuts are respectively arranged at two ends of the screw rod, and the connecting steel plate is in sliding connection along the screw rod when the fixing nuts and the screw rod are in a non-fixed state, so that the left and right adjustability of the anchoring mechanism is realized;
a jacking supporting mechanism: the hand-operated screw jack is placed between adjacent connecting steel plates of the adjustable anchoring mechanism of the temporary inverted arch steel frame.
2. The adjustable temporary inverted arch steel frame installation and construction structure as set forth in claim 1, wherein the connection steel plate is punched to form a hole.
3. The adjustable temporary inverted arch steel frame installation and construction structure as set forth in claim 1, wherein the screw rod is a customized lengthened full screw rod.
4. The adjustable temporary inverted arch steel frame installation and construction structure as claimed in claim 1, wherein the jacking support mechanism is further provided with a special short section I-steel support.
5. The adjustable temporary inverted arch steel frame installation and construction structure as claimed in claim 1, wherein the jacking support mechanism is further provided with a support backing plate, and when the support length of the special short section I-steel is insufficient, the support backing plate is 140 x 200 mm.
6. The adjustable temporary inverted arch steel frame installation and construction structure as set forth in claim 1, wherein the minimum length of the hand-operated screw jack is 168 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921117674.4U CN210564571U (en) | 2019-07-17 | 2019-07-17 | Interim inverted arch steelframe installation construction structures of adjustable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921117674.4U CN210564571U (en) | 2019-07-17 | 2019-07-17 | Interim inverted arch steelframe installation construction structures of adjustable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210564571U true CN210564571U (en) | 2020-05-19 |
Family
ID=70626879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921117674.4U Expired - Fee Related CN210564571U (en) | 2019-07-17 | 2019-07-17 | Interim inverted arch steelframe installation construction structures of adjustable |
Country Status (1)
| Country | Link |
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| CN (1) | CN210564571U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110259483A (en) * | 2019-07-17 | 2019-09-20 | 中铁上海工程局集团华海工程有限公司 | The adjustable interim inverted arch steelframe installation structure of one kind and construction method |
-
2019
- 2019-07-17 CN CN201921117674.4U patent/CN210564571U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110259483A (en) * | 2019-07-17 | 2019-09-20 | 中铁上海工程局集团华海工程有限公司 | The adjustable interim inverted arch steelframe installation structure of one kind and construction method |
| CN110259483B (en) * | 2019-07-17 | 2024-08-02 | 中铁上海工程局集团华海工程有限公司 | Adjustable temporary inverted arch steel frame installation construction structure and construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200519 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |