CN2848948Y - Lattice tool head - Google Patents
Lattice tool head Download PDFInfo
- Publication number
- CN2848948Y CN2848948Y CN 200520047440 CN200520047440U CN2848948Y CN 2848948 Y CN2848948 Y CN 2848948Y CN 200520047440 CN200520047440 CN 200520047440 CN 200520047440 U CN200520047440 U CN 200520047440U CN 2848948 Y CN2848948 Y CN 2848948Y
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- CN
- China
- Prior art keywords
- lattice
- support frame
- tool head
- utility
- model
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The utility model relates to a lattice tool head which belongs to the underground construction technical field. The utility model is characterized in that the utility model is composed of a big and a small cutter heads for cutting soil mass, and a support frame of a cutter, wherein the big cutter head is formed by two steel plates which are tightly fixed on the front frame in an acute angle; the small cutter head is a steel plate strip on the support frame; two ends of the support frame are tightly fixed on two edges of the support frame; the periphery of the square support frame is divided into communicated front and back lattices with 20 transversal lattices and 3 vertical lattices by a thin steel plate, and the whole body forms a cancellate lattice tool head, wherein the steel plate strip can be arranged in a vertical direction or in a transverse direction. The utility model does not require extra soil stabilization treatment when used for excavating the soil mass, construction cost is reduced and construction period is also shortened.
Description
Technical field:
Technical field of construction under the possession exactly is the tool heads that is used for a kind of cutting soil of underground construction.
Background technology:
Along with the exploitation of urban underground space, the underground construction no-excavation construction method develops rapidly, mainly contains shield method, pipe jacking method, pipe shed method, box culvert method etc., for big section shallow embedding underground structure, plurality of advantages such as the box culvert method has ambient influnence little, and the duration is short, and construction costs is reasonable.The condition that this worker's method is implemented is the requirement that the excavation face soil body before the box culvert reaches self-support, to guarantee excavation face stability and control surface deformable, to carry out consolidation process to the excavation face soil body in soft clay area, as box culvert the place ahead soil body is carried out horizontal compacting grouting and reinforcing, to improve the purpose that soil strength reaches the engineering safety construction, but this reinforcement measure makes working procedure increase, and construction costs rises.The superiority that these shortcomings just make the box culvert method construct in soft soil layer reduces.
Summary of the invention:
The utility model provides a kind of measure that need not take extra soil mass consolidation, and it is stable to keep the excavation face when the excavation soil body, easy construction, a kind of Grid Tool head that cost reduces.
The technical scheme that the utility model is taked:
Have the cutter head of cutting soil and the bracing frame of cutter to constitute, wherein cutter head is made up of large and small cutter head, and big cutter head is that two acutangulate steel plates are fastened on the front baffle; Small bit tool is the steel plate bar on bracing frame, and bracing frame two is fastened on two legs of frame, is separated into the grid that front and back communicate by steel sheet around the square frame, and the m lattice are laterally arranged, and the n lattice are vertically arranged; The latticed Grid Tool head of whole one-tenth.Its light plate bar can be vertical installation, also can be horizontal installation.Lattice are counted m, and n can determine as required, gets m=20 herein; N=3.
The good effect of implementing behind the utility model is, do not need to carry out extra soil stabilization again and handle when carrying out soil excavation, reduced construction costs, also shortened construction period.
Description of drawings:
Fig. 1. be the whole schematic perspective view of the utility model
Fig. 2. be the schematic perspective view of horizontal two graticule mesh lattice tool heads
The specific embodiment: existing the utility model is described in further detail in conjunction with the accompanying drawings
Grid Tool head comprises the cutter head of cutting soil and the bracing frame of cutter, and cutter head is made up of large and small cutter head, and big cutter head 1 is that two acutangulate steel plates 3,4 are fastened on the front baffle; Small bit tool 2 is the steel plate bars on bracing frame 5, and bracing frame two is fastened on two legs of frame, is separated into the grid that front and back communicate by steel sheet 6 around the square frame, and the m lattice are laterally arranged, and the n lattice are vertically arranged; The latticed Grid Tool head of whole one-tenth.The steel plate bar can be vertical installation 7, also can be laterally to install 8.The m lattice are 10-30; The n lattice are 2-5.
Embodiment:
With grade separation tunnel under certain city road is example, and this project adopts the construction of pipe curtain box culvert jacking worker method, and about 125 meters of pipe curtain segment length is south-north direction, and the box culvert cross dimension is 34.2 meters * 7.85 meters.Engineering is in this city's soft soil layer, adopts the mode of not reinforcing the thin-skinned soil of excavation, keeps the stability of excavation face by the Grid Tool head of particular design.By calculating, this engineering Grid Tool head is 20 * 3 lattice, wherein laterally m is 20 lattice, vertical n is 3 lattice, form the macrolattice form, the space box system that whole Grid Tool head is made up of the grid beams of steel, the Grid Tool head front end is the grid beams cutting edge, inwall is established steel dividing plate 6 around each macrolattice.
Claims (3)
1. Grid Tool head comprises the cutter head of cutting soil and the bracing frame of cutter, it is characterized in that:
Cutter head is made up of large and small cutter head, and big cutter head (1) is two acutangulate steel plates (3), and (4) are fastened on the front baffle; Small bit tool (2) is the steel plate bar on bracing frame (5), and bracing frame two is fastened on two legs of frame, is separated into the grid that front and back communicate by steel sheet (6) around the square frame, and the m lattice are laterally arranged, and the n lattice are vertically arranged; The latticed Grid Tool head of whole one-tenth.
2. Grid Tool head according to claim 1 is characterized in that: described steel plate bar can be vertical installation (7), also can be horizontal installation (8).
3. Grid Tool head according to claim 1 is characterized in that: described m lattice are 10-30; The n lattice are 2-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520047440 CN2848948Y (en) | 2005-12-13 | 2005-12-13 | Lattice tool head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520047440 CN2848948Y (en) | 2005-12-13 | 2005-12-13 | Lattice tool head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2848948Y true CN2848948Y (en) | 2006-12-20 |
Family
ID=37521430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520047440 Expired - Lifetime CN2848948Y (en) | 2005-12-13 | 2005-12-13 | Lattice tool head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2848948Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112796777A (en) * | 2021-01-29 | 2021-05-14 | 福建工程学院 | Excavation tool and method for shallow-buried weak stratum tunnel |
-
2005
- 2005-12-13 CN CN 200520047440 patent/CN2848948Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112796777A (en) * | 2021-01-29 | 2021-05-14 | 福建工程学院 | Excavation tool and method for shallow-buried weak stratum tunnel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shanghai Subway Shield Equipment Engineering Co., Ltd. Assignor: Shanghai No.2 Municipal Engineering Co., Ltd. Contract fulfillment period: 2008.7.30 to 2013.7.30 Contract record no.: 2008310000133 Denomination of utility model: Lattice tool head Granted publication date: 20061220 License type: Exclusive license Record date: 20081007 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.7.30 TO 2013.7.30; CHANGE OF CONTRACT Name of requester: SHANGHAI SUBWAY DUNGOU EQUIPMENT ENGINEERING CO., Effective date: 20081007 |
|
| EC01 | Cancellation of recordation of patent licensing contract |
Assignee: Shanghai Subway Shield Equipment Engineering Co., Ltd. Assignor: Shanghai No.2 Municipal Engineering Co., Ltd. Contract record no.: 2008310000133 Date of cancellation: 20100518 |
|
| CX01 | Expiry of patent term |
Granted publication date: 20061220 |
|
| EXPY | Termination of patent right or utility model |