CN203924005U - The structure of building a dam of banketing in the cumulosol layer of waters - Google Patents
The structure of building a dam of banketing in the cumulosol layer of waters Download PDFInfo
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- CN203924005U CN203924005U CN201420290710.8U CN201420290710U CN203924005U CN 203924005 U CN203924005 U CN 203924005U CN 201420290710 U CN201420290710 U CN 201420290710U CN 203924005 U CN203924005 U CN 203924005U
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Abstract
The utility model relates to the structure of building a dam of banketing in the cumulosol layer of waters, the described structure of building a dam of banketing comprises along tunnel direction and the first fill area being arranged side by side, the second fill area, the 3rd fill area, the 4th fill area and the 5th fill area, any in the first described fill area, the second fill area, the 3rd fill area, the 4th fill area and the 5th fill area advances and fills formation by a plurality of sub-segmentations, and the clay content of described the second fill area and described the 4th fill area is greater than 60%.Adopt subregion to advance to fill to form the structure of building a dam of banketing, can realize and squeeze removal cumulosol, the problem of the excessive and mud off weak effect of fullness coefficient when the existence that solves cumulosol in later stage soldier pile work progress causes soldier pile construction.
Description
Technical field
The utility model relates to constructing tunnel field, the structure of building a dam of banketing of the constructing tunnel in the cumulosol layer of espespecially a kind of waters.
Background technology
Along with the development of national economy, the exploitation underground space is built three dimensional city has become inexorable trend.Because continuous expansion and the urban land of urban construction are in short supply, the construction work under special geological environment condition is also more and more, and a lot of construction of tunnel must be passed through surrounding city waters, can face the submerged tunnel engineering under cumulosol or other Soft Clay environment.Peat and cumulosol contain higher organic content, are different from the weak soil of general significance, as mud, mucky soil etc.At present the research of Soft Soil Engineering character is only limited to mud and mucky soil substantially, actually rare for the research of cumulosol engineering properties.Yet the underground construction under cumulosol geological conditions is substantially all subject to the adverse effect of cumulosol, particularly the submerged tunnel engineering construction in cumulosol layer faces huge challenge.
Build the submerged tunnel engineering under cumulosol geological conditions, adopt while building a dam anti-excavation construction method in waters, what first must solve is exactly the problem of building a dam of banketing.The general damming works that bankets is used for greatly reservoir or dam is built the engineering that intercepts water in earlier stage, conventionally selection is piled and is built on the spot, the dam body packing sedimentation by throwing stones weak effect that heap is built, while building construction of tunnel in the later stage like this, existence due to cumulosol,, there is construction safety hidden danger in the pile quality that has a strong impact on soldier pile in tunnel Support of Foundation Pit Excavation engineering.
Utility model content
The purpose of this utility model is to overcome the defect of prior art, and the structure of building a dam of banketing in the cumulosol layer of a kind of waters is provided, and solves packing sedimentation by throwing stones weak effect and the poor problem of soldier pile pile quality in constructing tunnel.
The technical scheme that realizes above-mentioned purpose is:
The structure of building a dam of banketing in the cumulosol layer of a kind of waters of the utility model, for build construction of tunnel under cumulosol layer within the scope of waters, the described structure of building a dam of banketing comprises along tunnel direction and the first fill area of being arranged side by side, the second fill area, the 3rd fill area, the 4th fill area, and the 5th fill area, the first described fill area, the second fill area, the 3rd fill area, the 4th fill area, and the 5th any in fill area by a plurality of sub-segmentations, advance and fill formation, the clay content of described the second fill area and described the 4th fill area is greater than 60%.
Adopt subregion to advance to fill to form the structure of building a dam of banketing, can realize and squeeze removal cumulosol, the problem of the excessive and mud off weak effect of fullness coefficient when the existence that simultaneously solves cumulosol in later stage soldier pile work progress causes soldier pile construction.By the second fill area and the 4th fill area, adopt clay content to be greater than 60% tonerde and fill, improve the soil layer property of soldier pile construction area, guaranteed the pile quality of soldier pile, reduce potential safety hazard.
The build a dam further improvement of structure of banketing in the cumulosol layer of the utility model waters is, the first described fill area, the second fill area, the 3rd fill area, the 4th fill area, and each sub-segmentation of the 5th fill area between be crisscross arranged.
The build a dam further improvement of structure of banketing in the cumulosol layer of the utility model waters is, in the first described fill area, the 3rd fill area and the 5th fill area, each sub-segmentation is banketed along tunnel direction, and to form the front end of dam body far away 3 meters to 10 meters than the front end of each sub-segmentation corresponding in the second described fill area, the 4th fill area.
The build a dam further improvement of structure of banketing in the cumulosol layer of the utility model waters is, described the second fill area and described the 4th fill area are lower narrow wide inverted trapezoidal structure; The minimum widith of described the second fill area and described the 4th fill area is more than or equal to 3 times of soldier pile diameter of imbedding described the second fill area and described the 4th fill area.
The build a dam further improvement of structure of banketing in the cumulosol layer of the utility model waters is, described the first fill area, the 3rd fill area and the 5th fill area are formed by building debris and clay filling compacting.
The build a dam further improvement of structure of banketing in the cumulosol layer of the utility model waters is, described in banket the build a dam width of structure be greater than the width sum of width and both sides, the tunnel pioneer road in built tunnel.
Accompanying drawing explanation
Fig. 1 is the build a dam floor map of structure of banketing in the cumulosol layer of the utility model waters;
Fig. 2 is that the structure of building a dam of banketing in the cumulosol layer of the utility model waters advances floor map;
Fig. 3 is the build a dam generalized section of structure of banketing in the cumulosol layer of the utility model waters.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Consult Fig. 1, shown the build a dam floor map of structure of banketing in the cumulosol layer of the utility model waters.The utility model discloses a kind of within the scope of waters structure and the method for building a dam of banketing of the constructing tunnel in cumulosol layer, by the first to the 5th earthen fill zone along tunnel direction, formed, while building construction of tunnel in waters, first by filling earth and rockfill dam, carry out cofferdam, after earth and rockfill dam consolidation settlement is stable, then carry out tunnel foundation pit system construction and soil excavation construction.In filling earth and rockfill dam process, along constructing tunnel design route, progressively advance and fill in a big way surpassing Tunnel Design width.Selection for filling material, at later stage tunnel foundation pit supporting pile construction area, the second earthen fill zone and the 4th earthen fill zone adopt tonerde to carry out placement in layers compacting, guarantee later stage pile quality, for the first earthen fill zone, the 3rd earthen fill zone and the 5th earthen fill zone, adopt building waste or building debris and general clay to carry out placement in layers compacting, reach the object that the row of banketing becomes silted up.Below in conjunction with accompanying drawing, build a dam structure and method of banketing in the cumulosol layer of the utility model waters described.
Consult Fig. 1, shown the build a dam floor map of structure of banketing in the cumulosol layer of the utility model waters.Below in conjunction with Fig. 1, the structure of building a dam of banketing in the cumulosol layer of the utility model waters is described.
As shown in Figure 1, banketing in the cumulosol layer of the utility model waters built a dam structure for cumulosol is squeezed to removal, facilitates the follow-up construction of tunnel of building.This structure of building a dam of banketing comprises the first fill area 10, the second fill area 20, the 3rd fill area 30, the 4th fill area 40, and the 5th fill area 50, the first fill area 10, the second fill area 20, the 3rd fill area 30, the 4th fill area 40, and the 5th 50Yan tunnel, fill area direction advance and fill and form by a plurality of sub-sectionally smooth joins, wherein, the second fill area 20 and the 4th fill area 40 adopt tonerde, the content of its clay is greater than 60%, this second fill area 20 and the 4th fill area 40 are tunnel foundation pit supporting pile construction area of follow-up later stage, adopt tonerde, improve the soil layer property of foundation pit supporting pile construction area, avoid the adverse effect of cumulosol layer, guarantee the pile quality of soldier pile, increased the range of choice of soldier pile type, saved construction costs.The first fill area 10, the 3rd fill area 30 and the 5th fill area 50 adopt building debris or building waste and general clay filling compacting to form, above-mentioned three regions are according to the principle of drawing materials nearby, utilize building waste and the general clay compaction in layers of job site, reach the object that the row of banketing becomes silted up.
Consult Fig. 2, shown that the structure of building a dam of banketing in the cumulosol layer of the utility model waters advances floor map.As shown in Figure 2, banket the first fill area 10, the 3rd fill area 30 and the 5th fill area 50 of building a dam in structure forms prior to the second fill area 20 and the 4th fill area 40, the first fill area 10, the second fill area 20, the 3rd fill area 30, the 4th fill area 40, and each sub-segmentation of the 5th fill area 50 between be crisscross arranged.In the first fill area 10, the 3rd fill area 30 and the 5th fill area 50, each sub-segmentation is banketed along tunnel direction, and to form the front end of dam body far away 3 meters to 10 meters than the front end of each sub-segmentation of correspondence in the second fill area 20, the 4th fill area 40.The front end of this dam body is that segmentation is filled the sub-segmental structure of formation along one end of tunnel direction.
Consult Fig. 3, shown the build a dam generalized section of structure of banketing in the cumulosol layer of the utility model waters.As shown in Figure 3, the second fill area 20 and the 4th fill area 40 are lower narrow wide inverted trapezoidal structure, the first fill area 10, the 3rd fill area 30 and the 5th fill area 50 are trapezium structure, banket build a dam structure sediment stable after, carry out again tunnel foundation pit system construction and soil excavation construction, soldier pile 60 in foundation pit system is embedded in the second fill area 20 and the 4th fill area 40, excavation of earthwork is in the below of the second fill area 20, the 3rd fill area 30 and the 4th fill area 40, between the soldier pile 60 of both sides, form tunnel box 70.The build a dam minimum widith of the second fill area 20 in structure and the 4th fill area 40 of banketing is greater than 3 times of soldier pile 60 diameters imbedded in the second fill area 20 and the 4th fill area 40.The build a dam width of structure of banketing is greater than the width sum of width and both sides, the tunnel pioneer road in built tunnel, bankets and builds a dam the height of structure at least higher than 1 meter of the present situation water level in waters.
The build a dam beneficial effect of structure of banketing in the cumulosol layer of the utility model waters is:
Adopt subregion to advance to fill to form the structure of building a dam of banketing, can realize and squeeze removal cumulosol, the problem of the excessive and mud off weak effect of fullness coefficient when the existence that solves cumulosol in later stage soldier pile work progress causes soldier pile construction.
The second fill area and the 4th fill area adopt clay content to be greater than 60% tonerde and fill, and improve the soil layer property of soldier pile construction area, have guaranteed the pile quality of soldier pile, reduce potential safety hazard.
Building waste and general clay that the first fill area, the 3rd fill area and the 5th fill area make full use of job site fill, and not only having reached bankets squeezes the object of becoming silted up, and can also save construction costs.
The structure width of building a dam of banketing is greater than the width sum of width and both sides, the tunnel pioneer road in built tunnel, takes into full account later stage constructing tunnel, guarantees construction in later period safety.
Below embodiment has been described in detail the utility model by reference to the accompanying drawings, and those skilled in the art can make many variations example to the utility model according to the above description.Thereby some details in embodiment should not form restriction of the present utility model, the utility model will be usingd scope that appended claims defines as protection domain of the present utility model.
Claims (5)
1. the structure of building a dam of banketing in a waters cumulosol layer, for build construction of tunnel under cumulosol layer within the scope of waters, it is characterized in that, the described structure of building a dam of banketing comprises along tunnel direction and the first fill area of being arranged side by side, the second fill area, the 3rd fill area, the 4th fill area, and the 5th fill area, the first described fill area, the second fill area, the 3rd fill area, the 4th fill area, and the 5th any in fill area by a plurality of sub-segmentations, advance and fill formation, described the second fill area and described the 4th fill area medium clay soil content are greater than 60%.
2. the structure of building a dam of banketing in the cumulosol layer of waters as claimed in claim 1, is characterized in that, the first described fill area, the second fill area, the 3rd fill area, the 4th fill area, and each sub-segmentation of the 5th fill area between be crisscross arranged.
3. the structure of building a dam of banketing in the cumulosol layer of waters as claimed in claim 2, it is characterized in that, in the first described fill area, the 3rd fill area and the 5th fill area, each sub-segmentation is banketed along tunnel direction, and to form the front end of dam body far away 3 meters to 10 meters than the front end of each sub-segmentation corresponding in the second described fill area, the 4th fill area.
4. the structure of building a dam of banketing in the cumulosol layer of waters as claimed in claim 1 or 2, is characterized in that, described the second fill area and described the 4th fill area are lower narrow wide inverted trapezoidal structure; The minimum widith of described the second fill area and described the 4th fill area is more than or equal to 3 times of diameter of the soldier pile of imbedding described the second fill area and described the 4th fill area.
5. the structure of building a dam of banketing in the cumulosol layer of waters as claimed in claim 1, is characterized in that, described in banket the build a dam width of structure be greater than the width sum of built tunnel structure width and both sides pioneer road.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420290710.8U CN203924005U (en) | 2014-06-03 | 2014-06-03 | The structure of building a dam of banketing in the cumulosol layer of waters |
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| CN201420290710.8U CN203924005U (en) | 2014-06-03 | 2014-06-03 | The structure of building a dam of banketing in the cumulosol layer of waters |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103981841A (en) * | 2014-06-03 | 2014-08-13 | 上海隧道工程股份有限公司 | Earth filling damming structure and method in peaty soil layer of water area |
| CN106381880A (en) * | 2016-08-31 | 2017-02-08 | 中国水利水电第五工程局有限公司 | Treatment method of peat soil dam foundation |
-
2014
- 2014-06-03 CN CN201420290710.8U patent/CN203924005U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103981841A (en) * | 2014-06-03 | 2014-08-13 | 上海隧道工程股份有限公司 | Earth filling damming structure and method in peaty soil layer of water area |
| CN103981841B (en) * | 2014-06-03 | 2015-12-02 | 上海隧道工程股份有限公司 | Banket damming structure and method in the peat swamps evolution of waters |
| CN106381880A (en) * | 2016-08-31 | 2017-02-08 | 中国水利水电第五工程局有限公司 | Treatment method of peat soil dam foundation |
| CN106381880B (en) * | 2016-08-31 | 2018-10-19 | 中国水利水电第五工程局有限公司 | The processing method of the peat soil dam foundation |
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Effective date of registration: 20151118 Address after: 200232 Shanghai city Xuhui District Wanping Road No. 1099 5 floor Patentee after: SHANGHAI TUNNEL ENGINEERING CO., LTD. Patentee after: SHANGHAI TUNNEL ENGINEERING CO., LTD. Address before: 200082 No. 118, Dalian Road, Shanghai, Yangpu District Patentee before: Shanghai Tunnel Engineering Co., Ltd. |