CN211547803U - Prestressing force monitoring adjustable weighing type combination retaining wall - Google Patents
Prestressing force monitoring adjustable weighing type combination retaining wall Download PDFInfo
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- CN211547803U CN211547803U CN201922089221.1U CN201922089221U CN211547803U CN 211547803 U CN211547803 U CN 211547803U CN 201922089221 U CN201922089221 U CN 201922089221U CN 211547803 U CN211547803 U CN 211547803U
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Abstract
The utility model discloses a prestressing force monitoring adjustable weighing apparatus formula combination retaining wall, including weighing apparatus formula combination retaining wall body, prestressed anchorage cable, pressure sensor, the through-hole has been seted up on the balance weight retaining structure bottom plate of weighing apparatus formula combination retaining wall body, the anchor rope head end of prestressed anchorage cable passes the through-hole and fixes in balance weight retaining structure bottom plate top through the ground tackle, the anchor end setting of prestressed anchorage cable is in the ground drilling, pressure sensor sets up between ground tackle and balance weight retaining structure bottom plate. The utility model discloses simple structure, but real-time supervision weighing apparatus formula combination retaining wall body construction and build the anchor rope pulling force change of back operation use stage to judge the steady state of whole weighing apparatus formula combination retaining wall, and make the adjustment according to the condition, improve the stability and the shock resistance of weighing apparatus formula combination retaining wall.
Description
Technical Field
The utility model belongs to the technical field of the retaining wall, concretely relates to prestressing force monitoring adjustable weighing type combination retaining wall.
Background
The retaining wall is widely applied to the projects such as the traffic municipal engineering, the railway engineering, the side slope of the building, the foundation pit and the like, and the single cantilever retaining structure, the buttress retaining wall and the gravity retaining wall are only suitable for the retaining height of 6-10 meters due to the deformation, the safety and the economic reasons, so that the counterweight combined retaining wall (namely the upper and lower combined retaining structures with the top of the cantilever retaining structure connected with the balance counterweight) with the upper part of the buttress retaining wall or the lower part of the gravity retaining wall as the retaining pile wall is generated, and the beneficial gravity effect opposite to the adverse effect of the geotechnical pressure borne by the lower retaining structure is generated by arranging the upper balance counterweight retaining structure, so that the overall stability and the safety of the counterweight combined retaining structure are improved to a certain degree, but the counterweight combined retaining structure is still a cantilever structure substantially and only has one embedded end but lacks redundant constraint, if the free cantilever section of the pile body is too high, the pile body can generate transverse deformation under the pressure of a soil body, the transverse deformation is too large, and even an engineering accident that the pile body is broken can occur.
Therefore, the key for solving the problems is to research and develop the balance weight type combined retaining wall which is simple in structure, multi-point constrained, stable in structure overall and adjustable in prestress monitoring.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a prestressing force monitoring adjustable weighing apparatus formula combination retaining wall.
The utility model aims at realizing like this, including weighing apparatus formula combination retaining wall body, prestressed anchorage cable, pressure sensor, the through-hole has been seted up on the balanced counter weight retaining structure bottom plate of weighing apparatus formula combination retaining wall body, the anchor rope head end of prestressed anchorage cable passes the through-hole and fixes in balanced counter weight retaining structure bottom plate top through the ground tackle, the anchor end setting of prestressed anchorage cable is in the ground drilling, pressure sensor sets up between ground tackle and balanced counter weight retaining structure bottom plate.
The utility model discloses following technological effect has:
by adopting the prestressed anchor cables, acting force in the opposite direction of the transverse pressure of the soil body is added on the balance weight type combined retaining structure, so that the stability and the safety of the balance weight type combined retaining structure are improved, the deformation of the whole retaining structure is controlled to a certain degree, and the integral stability of the retaining wall is ensured; meanwhile, the anchor cable head pressure sensor is adopted, so that the anchor cable tension change of the balance weight type combined retaining wall body in the construction and operation and use stages after construction can be monitored in real time, the stable state of the whole balance weight type combined retaining wall is judged, adjustment is made according to the condition, and the stability and the shock resistance of the balance weight type combined retaining wall are improved.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic top view of FIG. 1;
FIG. 3 is an enlarged view of part A;
fig. 4 is another schematic structural diagram of the present invention;
in the figure: the method comprises the following steps of 1-weighing combined retaining wall body, 101-balancing weight retaining structure bottom plate, 102-through hole, 2-prestressed anchor cable, 201-anchor cable head, 3-pressure sensor, 4-anchor, 5-working well, 6-anchor pier, 7-original foundation, 8-filling, and 9-excavation designed ground elevation.
Detailed Description
The following description of the present invention is provided with reference to the accompanying drawings, which are not intended to limit the present invention in any way, and any alterations or replacements made based on the teachings of the present invention are all within the protection scope of the present invention.
As shown in fig. 1-4 the utility model discloses a balance weight formula combination retaining wall body 1, prestressed anchorage cable 2, pressure sensor 3, through-hole 102 has been seted up on the balance weight retaining structure bottom plate 101 of balance weight formula combination retaining wall body, the anchor rope head end of prestressed anchorage cable 2 passes through-hole 102 and fixes in balance weight retaining structure bottom plate 101 top through ground tackle 4, the anchor end of prestressed anchorage cable 2 sets up in the ground drilling, pressure sensor 3 sets up between ground tackle 4 and balance weight retaining structure bottom plate 101.
A working well 5 is arranged between the balance weight supporting and retaining structure bottom plate 101 and the outside, the pressure sensor 3 and the anchor 4 are located in the working well 5, the pressure sensor 3, the anchor 4 and the anchor rope head cannot be exposed outside, the appearance is attractive, and the prestress can be observed and adjusted by people easily.
5 top openings of working well are provided with the well lid, well lid height and balance weight keep off structure surface parallel and level.
The prestressed anchor cable and the vertical line of the bottom plate of the balance weight retaining structure form an angle theta.
The angle theta is 0-45 degrees.
The angle between the axis of the through hole and the vertical line of the bottom plate of the balance weight retaining structure is theta.
An anchor pier 6 is arranged between the pressure sensor 3 and the balance weight retaining structure bottom plate 101, and the angle formed by the upper surface and the lower surface of the anchor pier 6 is the same as the angle theta between the prestressed anchor cable and the balance weight retaining structure bottom plate.
The anchorage device 4 is a repeatable tensioning anchorage device.
The prestressed anchor cables 2 are multiple, and the prestressed anchor cables 2 are arranged on the balance weight retaining structure bottom plate 101 at intervals.
The utility model discloses theory of operation and working process: the stable state of the whole balance weight type combined retaining wall structure is visually reflected by monitoring the tension change of the anchor cable of the pressure sensor in real time, and the overall stability of the balance weight type combined retaining wall is guaranteed by adjusting the prestress or taking other measures according to the tension change. During construction, a lower supporting pile wall of the balance weight type combined retaining wall body 1 and a balance weight retaining structure bottom plate 101 are firstly constructed (for deeper filling engineering, the lower supporting pile wall is firstly constructed, after the strength requirement is met, filling, compacting and backfilling are carried out to the bottom elevation of the balance weight retaining structure bottom plate 101, then the balance weight retaining structure bottom plate is constructed), after the concrete strength of the lower supporting pile wall and the balance weight retaining structure bottom plate 101 reaches the design requirement, a prestressed anchor cable 2 with an anchor head pressure sensor is constructed, when the mortar strength of a prestressed anchor cable anchoring section reaches the design requirement, the prestressed anchor cable is initially locked (the locking value is equal to the sum of the gravity of the anchor cable and the frictional resistance of the anchor cable and the side wall of an anchor hole), then other upper balance weight retaining structures and a working well 5 are constructed, when the concrete strength of the upper balance weight retaining structure reaches the design requirement, the earth square behind the balance weight type combined retaining wall body 1 is backfilled to the design height, and simultaneously monitoring the change of the tension value of the anchor cable measured by the anchor head pressure sensor 3 of the prestressed anchor cable and adjusting the tension value according to the requirement until the anchor cable is backfilled to the designed elevation. If the rock soil in front of the balance weight type combined retaining wall body needs to be excavated, excavating the rock soil body in front to a designed ground elevation 9, simultaneously monitoring the change of the tension value of the anchor rope measured by the anchor head pressure sensor 3 of the prestressed anchor rope, and determining the final locking value of the prestressed anchor rope according to the change of the tension value of the anchor rope and the stability required to be achieved by design. During the normal use of the balance weight type combined retaining wall, the stable state of the whole balance weight type combined retaining wall is judged through the real-time monitoring of the anchor head pressure sensor 3.
Claims (9)
1. The utility model provides a prestressing force monitoring adjustable weighing apparatus formula combination retaining wall, includes weighing apparatus formula combination retaining wall body (1), prestressed anchorage cable (2), pressure sensor (3), characterized by: a through hole (102) is formed in a balance weight supporting and retaining structure bottom plate (101) of the balance weight type combined retaining wall body, the anchor rope head end of the prestressed anchor rope (2) penetrates through the through hole (102) and is fixed above the balance weight supporting and retaining structure bottom plate (101) through an anchor (4), the anchoring end of the prestressed anchor rope (2) is arranged in a foundation drilling hole, and the pressure sensor (3) is arranged between the anchor (4) and the balance weight supporting and retaining structure bottom plate (101).
2. The prestress monitoring adjustable balance weight type combined retaining wall as claimed in claim 1, wherein: a working well (5) is arranged between the balance weight retaining structure bottom plate (101) and the outside, and the pressure sensor (3) and the anchor (4) are located in the working well (5).
3. The prestress monitoring and adjustable balance weight type combined retaining wall as claimed in claim 2, wherein: the opening in the upper part of the working well (5) is provided with a well cover, and the height of the well cover is parallel and level with the outer surface of the balance weight retaining structure.
4. The prestress monitoring adjustable balance weight type combined retaining wall as claimed in claim 1, wherein: the prestressed anchor cable and the vertical line of the bottom plate of the balance weight retaining structure form an angle theta.
5. The prestress monitoring and adjustable balance weight type combined retaining wall as claimed in claim 4, wherein: the angle between the axis of the through hole and the vertical line of the bottom plate of the balance weight retaining structure is theta.
6. The prestress monitoring and adjustable balance weight type combined retaining wall as claimed in claim 4, wherein: an anchor pier (6) is arranged between the pressure sensor (3) and the balance weight retaining structure bottom plate (101), and an angle formed by the upper surface and the lower surface of the anchor pier (6) is the same as an angle theta between the prestressed anchor cable and the balance weight retaining structure bottom plate.
7. The prestress monitoring adjustable balance weight type combined retaining wall as claimed in claim 1, wherein: the anchorage device (4) is a repeatable tensioning anchorage device.
8. The prestress monitoring adjustable balance weight type combined retaining wall as claimed in claim 1, wherein: the prestressed anchor cables (2) are multiple, and the prestressed anchor cables (2) are arranged on the balance weight retaining structure bottom plate (101) at intervals.
9. The balance weight type combined retaining wall with adjustable prestress monitoring as claimed in any one of claims 1 to 8, wherein: the prestressed anchor cable (2) is a tension prestressed anchor cable capable of being compensated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922089221.1U CN211547803U (en) | 2019-11-28 | 2019-11-28 | Prestressing force monitoring adjustable weighing type combination retaining wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922089221.1U CN211547803U (en) | 2019-11-28 | 2019-11-28 | Prestressing force monitoring adjustable weighing type combination retaining wall |
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| Publication Number | Publication Date |
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| CN211547803U true CN211547803U (en) | 2020-09-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922089221.1U Active CN211547803U (en) | 2019-11-28 | 2019-11-28 | Prestressing force monitoring adjustable weighing type combination retaining wall |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110792097A (en) * | 2019-11-28 | 2020-02-14 | 聂磊 | Prestress monitoring adjustable balance weight type combined retaining wall and construction method |
| CN115291240A (en) * | 2022-10-08 | 2022-11-04 | 江苏徐工工程机械研究院有限公司 | Detection method and system for perception and identification of retaining wall behind unloading point in mining area scene |
-
2019
- 2019-11-28 CN CN201922089221.1U patent/CN211547803U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110792097A (en) * | 2019-11-28 | 2020-02-14 | 聂磊 | Prestress monitoring adjustable balance weight type combined retaining wall and construction method |
| CN115291240A (en) * | 2022-10-08 | 2022-11-04 | 江苏徐工工程机械研究院有限公司 | Detection method and system for perception and identification of retaining wall behind unloading point in mining area scene |
| CN115291240B (en) * | 2022-10-08 | 2023-01-17 | 江苏徐工工程机械研究院有限公司 | Detection method and system for perception and identification of retaining wall behind unloading point in mining area scene |
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