CN201695398U - Stepped top-down pit excavation trestle - Google Patents
Stepped top-down pit excavation trestle Download PDFInfo
- Publication number
- CN201695398U CN201695398U CN201020167744XU CN201020167744U CN201695398U CN 201695398 U CN201695398 U CN 201695398U CN 201020167744X U CN201020167744X U CN 201020167744XU CN 201020167744 U CN201020167744 U CN 201020167744U CN 201695398 U CN201695398 U CN 201695398U
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- shoveling
- excavation
- pit
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Abstract
The utility model discloses a stepped top-down pit excavation trestle, which is arranged in a top-down foundation pit, surrounding top-down structural beam slabs are enlarged layer by layer from the top down, and are formed into a stepped structure, and each excavation trestle is connected with the end of the upper layer of top-down structural beam slab and the end of the opposite lower layer of top-down structural beam slab. By arranging the pit excavation trestle, a construction passage is built from the ground into the pit, so that earthmoving machines can directly get into the pit to excavate and transport earth, consequently, the efficiency of earth-excavating construction is increased, and the earth excavation speed can be more than two times as high as the earth excavation speed of conventional top-down construction.
Description
Technical field
The utility model relates to building underground engineering construction technical field, particularly a kind of shoveling trestle, the contrary hole shoveling trestle down of doing of specifically a kind of stepping type.
Background technology
Little digging machine level was lightered to soil outlet or foundation ditch limit under the contrary do shoveling of current base pit engineering mostly was and cheats, excavate by ground long-armed digging machine or grab bucket again, it is too much that the problem of this shoveling mode is cubic metre of earth to dig out to the process on ground the transportation by lighter number of times down via the hole, the construction machinery loss is bigger, so that the inefficiency of cutting the earth, performance is particularly evident in ultra-large type base pit engineering adverse construction method.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of can reduce cubic metre of earth a transportation by lighter number of times and a construction machinery loss, improves the contrary hole shoveling trestle down of doing of stepping type of excavation and construction work efficiency, to overcome the above-mentioned defective that prior art exists.
The technical scheme of the utility model technical solution problem is as follows:
The contrary hole shoveling trestle down of doing of a kind of stepping type, it is arranged on contrary the work in the foundation ditch, the contrary structure beam slab of doing of periphery successively strengthens from top to bottom, be the stepping type structure, it is characterized in that described shoveling trestle is connected in contrary contrary the work between the structure beam slab end of lower floor of making the relative side with it in structure beam slab end in upper strata.
By above disclosed technical scheme as can be known, the utility model stepping type is contrary, and to make hole shoveling trestle down be to connect the levels contrary a kind of trestle form of making structure contrary work of periphery under the form that structure successively increases from top to bottom.By shoveling trestle in hole is set down, set up by ground and led to the interior construction passage in hole, earth moving plant can directly be cheated down carry out excavation and construction and hauling operation.Adopt the contrary work of the utility model stepping type to cheat the shoveling trestle down and improve the soil excavation efficiency of construction, unearthed speed can reach conventional adverse construction method more than 2 times.
Description of drawings
Fig. 1 is the contrary hole shoveling trestle structural representation down of doing of the utility model stepping type.
The specific embodiment
Further specify the utility model below in conjunction with accompanying drawing.
As shown in Figure 1, the contrary hole shoveling trestle down of doing of the utility model stepping type, it is arranged on contrary the work in the foundation ditch, the contrary structure beam slab 2 of doing of periphery successively strengthens from top to bottom, be the stepping type structure, described shoveling trestle 1 is connected in contrary contrary the work between the structure beam slab 2 ' end of lower floor of making the relative side with it in structure beam slab 2 ends in upper strata.
Described shoveling trestle 1 is the steel concrete trestle.
Because shoveling trestle in hole mainly is arranged on contrary the work between the structure of upper and lower layer periphery down, satisfies the current requirement of upper and lower layer earth moving plant, the trestle gradient is unsuitable excessive when being provided with.Relatively Shi Yi trestle gradient scope is for being not more than 1: 8.
Claims (3)
1. cheat the shoveling trestle under contrary work of stepping type, it is arranged on contrary the work in the foundation ditch, the contrary structure beam slab (2) of doing of periphery successively strengthens from top to bottom, be the stepping type structure, it is characterized in that described shoveling trestle (1) is connected in contrary contrary the work between structure beam slab (the 2 ') end of lower floor of making the relative side with it in structure beam slab (2) end in upper strata.
2. the contrary hole shoveling trestle down of doing of stepping type according to claim 1 is characterized in that described shoveling trestle (1) is the steel concrete trestle.
3. the contrary hole shoveling trestle down of doing of stepping type according to claim 1 is characterized in that, described shoveling trestle (1) in easy flights in 1: 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020167744XU CN201695398U (en) | 2010-04-22 | 2010-04-22 | Stepped top-down pit excavation trestle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020167744XU CN201695398U (en) | 2010-04-22 | 2010-04-22 | Stepped top-down pit excavation trestle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201695398U true CN201695398U (en) | 2011-01-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020167744XU Expired - Fee Related CN201695398U (en) | 2010-04-22 | 2010-04-22 | Stepped top-down pit excavation trestle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201695398U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104005571A (en) * | 2014-06-17 | 2014-08-27 | 浙江华展工程研究设计院有限公司 | Slanting construction trestle combined with internal supporting system |
| CN104131565A (en) * | 2014-06-18 | 2014-11-05 | 中国建筑第四工程局有限公司 | Construction method of using down-top method for excavating earthworks in top-down construction |
| CN104452575A (en) * | 2014-10-22 | 2015-03-25 | 中国建筑第四工程局有限公司 | Inclined trestle structure for reverse construction method excavation construction and earth excavation method |
| CN110004936A (en) * | 2019-05-20 | 2019-07-12 | 中建四局土木工程有限公司 | A kind of unearthed ramp and construction method based on deep foundation pit supporting structure |
-
2010
- 2010-04-22 CN CN201020167744XU patent/CN201695398U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104005571A (en) * | 2014-06-17 | 2014-08-27 | 浙江华展工程研究设计院有限公司 | Slanting construction trestle combined with internal supporting system |
| CN104131565A (en) * | 2014-06-18 | 2014-11-05 | 中国建筑第四工程局有限公司 | Construction method of using down-top method for excavating earthworks in top-down construction |
| CN104131565B (en) * | 2014-06-18 | 2016-06-22 | 中国建筑第四工程局有限公司 | A kind of against making the construction method that the earthwork is just made to excavate |
| CN104452575A (en) * | 2014-10-22 | 2015-03-25 | 中国建筑第四工程局有限公司 | Inclined trestle structure for reverse construction method excavation construction and earth excavation method |
| CN110004936A (en) * | 2019-05-20 | 2019-07-12 | 中建四局土木工程有限公司 | A kind of unearthed ramp and construction method based on deep foundation pit supporting structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110105 Termination date: 20110422 |