CN112240031B - Retaining wall system capable of reducing construction influence and construction method thereof - Google Patents
Retaining wall system capable of reducing construction influence and construction method thereof Download PDFInfo
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- CN112240031B CN112240031B CN202011103042.XA CN202011103042A CN112240031B CN 112240031 B CN112240031 B CN 112240031B CN 202011103042 A CN202011103042 A CN 202011103042A CN 112240031 B CN112240031 B CN 112240031B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/02—Retaining or protecting walls
- E02D29/0258—Retaining or protecting walls characterised by constructional features
- E02D29/0275—Retaining or protecting walls characterised by constructional features cast in situ
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C3/00—Foundations for pavings
- E01C3/04—Foundations produced by soil stabilisation
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/02—Improving by compacting
- E02D3/046—Improving by compacting by tamping or vibrating, e.g. with auxiliary watering of the soil
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- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
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- Agronomy & Crop Science (AREA)
- Soil Sciences (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
The invention discloses a retaining wall system for reducing construction influence and a construction method thereof, and relates to the field of engineering construction. This barricade system that reduces construction influence passes through the cooperation of atmospheric pressure energy dissipation layer and energy dissipater for the effectual absorption that goes on of ramming force that produces when carrying out the embankment filling construction has avoided damaging the barricade because the vibration that ramming force produced when the construction.
Description
The technical field is as follows:
the invention relates to the field of engineering construction, in particular to a retaining wall system for reducing construction influence and a construction method thereof.
Background art:
the retaining wall is a structure for preventing soil filling or soil deformation and instability, and is widely applied to the fields of land limitation, embankment stability improvement, highways, municipal administration, navigation channels and the like. On the premise that the construction does not affect the safety of retaining wall structures, in order to ensure the compactness of the back filling of the platform, the 'highway subgrade construction technical specification' requires that the filling adopts water-permeable materials, light materials, inorganic binder stabilizing materials and the like, the platform back and the wall back are compacted by a small-sized compactor within the range of 1.0m, and the layered compaction thickness is not more than 150 cm. Obviously, the construction of filling the table back and the roadbed has the problems of inconsistent filling, layered compaction thickness and compactor, and the construction process is various and is not beneficial to mechanized construction. In order to improve the construction efficiency, the platform back and the embankment are usually rolled and filled by the same filler on site, the embankment is excavated reversely to carry out retaining wall construction, and a V-shaped groove is formed between the retaining wall and the embankment. In order to avoid the influence of construction equipment on the retaining wall, the region can only adopt a construction method combining a small-sized tamping tool and a manual tamping tool to carry out secondary backfilling to the top of the retaining wall. The construction method is limited by narrow construction space, the compaction degree, the step excavation and the retaining wall drainage inverted filter layer quality cannot be guaranteed, under the background that the material price is increased day by day, a common filler is often adopted to backfill the V-shaped groove in the construction, and the V-shaped groove is often a water storage and rainwater runoff area, so that the quality of the V-shaped backfilling area is further reduced, longitudinal cracks of the roadbed often appear under adverse working conditions, and the driving safety of the roadbed and vehicles is influenced.
The invention content is as follows:
in order to solve the problems proposed in the background art, the invention provides a retaining wall system for reducing construction influence and a construction method thereof.
The technical problem to be solved by the invention is realized by adopting the following technical scheme: a retaining wall system capable of reducing construction influence comprises an air pressure energy dissipation layer, an air pressure partition plate and a ground line, wherein a retaining wall is arranged above the left side of the ground line, the air pressure energy dissipation layer is arranged on the right side of the retaining wall, a sand bag layer is arranged on the right side of the air pressure energy dissipation layer, reverse filter geotextile is arranged on the right side of the sand bag layer, and embankment filling is arranged on the right side of the reverse filter geotextile;
the air pressure energy dissipation layer comprises a filler channel, a metal frame, a rubber surface, a communication clamping groove, an air pressure partition plate and a communication groove hole;
the outer wall of the air pressure partition plate is respectively wrapped with a metal frame and a rubber surface, the metal frame is wrapped on the upper, lower, front and rear outer walls of the air pressure partition plate, the rubber surface is in close contact with the outer wall on the right side of the air pressure partition plate, and a filler channel is arranged on the left side of the air pressure partition plate;
the front end of the air pressure partition plate is provided with a communicating clamping groove, the top of the air pressure partition plate is provided with a communicating groove hole, and sealing rings are arranged inside the communicating clamping groove and the communicating groove hole;
an energy dissipation device is arranged above the air pressure partition plate and comprises a hammer type energy dissipation force arm, a spring, a lifting control platform, a lifting switch and an air cabin;
an air cabin is arranged above the air pressure partition plate, lifting control platforms are arranged on the left side and the right side of the top end of the air cabin, a hammer type energy dissipation force arm is arranged in the air cabin, a plurality of springs are fixedly connected below the left end and the right end of the hammer type energy dissipation force arm, and the bottoms of the springs are fixedly connected with the lifting control platforms;
and a lifting switch is arranged outside the lifting control platform.
Preferably, the air pressure partition plates are provided with a plurality of groups, and each group of air pressure partition plates are communicated through the communicating clamping grooves;
the communication slot hole is communicated with the bottom of the air cabin.
Preferably, the sand bag layer is formed by stacking a plurality of sand bags.
Preferably, an air pressure monitoring device is arranged inside the air pressure partition plate.
A construction method of a retaining wall system for reducing construction influence specifically comprises the following steps:
s1, according to the retaining wall design drawing, lofting on site, excavating a foundation and testing the bearing capacity of the groove base;
s2, erecting a mould and pouring retaining wall concrete, and maintaining the retaining wall concrete until the strength meets the requirement;
s3, installing the air pressure energy dissipation layer, and connecting the air pressure partition plate according to the length of the filling and paving;
s4, injecting air into the air pressure partition plate by using an air pressure pump, monitoring the internal air pressure by using an air pressure monitoring device, and keeping the internal pressure of the air pressure partition plate;
s5, stacking the sand bag layer on the right side of the air pressure energy dissipation layer, and paving a reverse filtering geotextile on the right side of the sand bag layer;
s6, filling the embankment filling soil layer by layer, wherein in the filling process, the tamping force generated by tamping the embankment filling soil is released through an energy dissipation device by the air pressure partition plate, and specifically, the air pressure partition plate is released by a spring under the action of extrusion force;
the spring is fixedly connected with the lifting control platform, and the lifting control platform is adjusted by controlling a lifting switch, so that the tension of the spring can be adjusted, the tension of the spring is balanced with the internal pressure of the air pressure partition plate, and the rubber surface is always kept on a reference plane;
s7, the air pressure energy dissipation layer is drawn out, roadbed backfill is filled into a filling channel in the drawing process and tamped, and the rebound of the roadbed caused by the drawing of the air pressure energy dissipation layer is reduced;
and S8, repeating the steps S-S to fill the roadbed backfill materials to the top end of the retaining wall.
Compared with the prior art, the invention has the beneficial effects that:
the retaining wall system for reducing construction influence effectively absorbs the tamping force generated during embankment filling construction through the matching of the air pressure energy dissipation layer and the energy dissipation device, and avoids the damage to the retaining wall caused by the vibration generated by the tamping force during construction; the elastic material deformation of the rubber surface and the energy dissipation device at the top can eliminate vibration energy generated by construction, so that the construction machinery and roadbed filling which are the same as the embankment can be adopted at the periphery of the retaining wall, the instability of the roadbed caused by construction nonuniformity is eliminated, the retaining wall structure is protected, the retaining wall structure can better play a role in the service cycle, and the construction progress of roadbed filling is accelerated.
This barricade system that reduces construction influence is through taking out the setting on atmospheric pressure heat dissipation layer, can pack the road bed backfill and tamp to the filler passageway at the in-process of taking out when carrying out the construction, has avoided the condition that forms "V" type groove between current barricade and the embankment to avoided the easy water storage of current "V" type groove to lead to having reduced the quality in "V" type backfill district, the vertical crack of road bed often appears under unfavorable operating mode, influences the problem of the safety that road bed and vehicle travel.
This barricade system that reduces construction influence can not only solve the problem that the platform back of the body and roadbed fill the synchronous construction, does benefit to mechanized flowing water construction, improves the efficiency, can guarantee moreover that wall back of the body packs under the condition of degree of compaction, barricade drainage reversed filter quality, adopts the general filler the same with the roadbed, has practiced thrift the investment.
Description of the drawings:
in order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts;
FIG. 1 is a schematic sectional elevational view of a retaining wall system;
FIG. 2 is a schematic perspective view of the pneumatic energy dissipating layer;
FIG. 3 is a schematic perspective view of the energy dissipater;
FIG. 4 is a schematic sectional view of the energy dissipater in front view;
wherein: 1. an air pressure energy dissipation layer; 101. a filler channel; 102. a metal frame; 103. a rubber surface; 104. the clamping groove is communicated; 105. an air pressure partition plate; 106. a communicating slot hole; 2. retaining walls; 3. a sand bag layer; 4. filling soil into the embankment; 5. a ground line; 6. reversely filtering the geotextile; 7. an energy dissipation device; 701. a hammer type energy dissipation force arm; 702. a spring; 703. a lifting control platform; 704. a lifting switch; 705. an air chamber.
The specific implementation mode is as follows:
in order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained below by combining the specific drawings.
Example 1:
referring to fig. 1-4, a retaining wall system for reducing construction influence comprises an air pressure energy dissipation layer 1, an air pressure partition 105 and a ground line 5, wherein a retaining wall 2 is arranged above the left side of the ground line 5, the air pressure energy dissipation layer 1 is arranged on the right side of the retaining wall 2, a sand bag layer 3 is arranged on the right side of the air pressure energy dissipation layer 1, the sand bag layer 3 is formed by stacking a plurality of sand bags, an anti-filtration geotextile 6 is arranged on the right side of the sand bag layer 3, and an embankment filling 4 is arranged on the right side of the anti-filtration geotextile 6.
The air pressure energy dissipation layer 1 comprises a filler channel 101, a metal frame 102, a rubber surface 103, a communication clamping groove 104, an air pressure clapboard 105 and a communication groove hole 106; the outer wall of the air pressure partition plate 105 is respectively wrapped with a metal frame 102 and a rubber surface 103, the metal frame 102 is wrapped on the upper, lower, front and rear outer walls of the air pressure partition plate 105, the rubber surface 103 is in close contact with the outer wall of the right side of the air pressure partition plate 105, and the left side of the air pressure partition plate 105 is provided with a filler channel 101; a communicating clamping groove 104 is formed in the front end of the air pressure partition plate 105, a communicating groove hole 106 is formed in the top of the air pressure partition plate, and sealing rings are arranged inside the communicating clamping groove 104 and the communicating groove hole 106; the air pressure partition plates 105 are provided with a plurality of groups, and the air pressure partition plates 105 in each group are communicated and connected through a communicating clamping groove 104; an air pressure monitoring device is arranged inside the air pressure partition plate 105.
An energy dissipation device 7 is arranged above the air pressure partition plate 105, and the energy dissipation device 7 comprises a hammer type energy dissipation arm 701, a spring 702, a lifting control platform 703, a lifting switch 704 and an air cabin 705; an air cabin 705 is arranged above the air pressure partition plate 105, the communication slot hole 106 is communicated with the bottom of the air cabin 705, the left side and the right side of the top end of the air cabin 705 are provided with lifting control platforms 703, a hammer type energy dissipation force arm 701 is arranged inside the lifting control platforms 703, a plurality of springs 702 are fixedly connected below the left end and the right end of the hammer type energy dissipation force arm 701, and the bottoms of the springs 702 are fixedly connected with the lifting control platforms 703; a lifting switch 704 is arranged outside the lifting control platform 703.
According to the retaining wall system for reducing construction influence, when embankment filling 4 is filled in layers, in order to avoid the situation that the tamping force generated during tamping directly acts on the retaining wall 2, the air pressure energy dissipation layer 1 and the energy dissipation device 7 are arranged, the tamping force generated during embankment filling 4 is absorbed through the air pressure partition plate 105, the interior of the air pressure partition plate 105 expands outwards under the action of extrusion force, the top of the air pressure partition plate 105 is communicated and connected with an air chamber 705 through a communication slotted hole 106, and the hammer type energy dissipation force arm 701 is fixedly connected with the lifting control platform 703 through a plurality of springs 702, so that the hammer type energy dissipation force arm 701 can be jacked upwards by the internal air pressure of the air pressure partition plate 105, and then the internal air pressure of the air pressure partition plate 105 is indirectly absorbed by the plurality of springs 702, and the purpose of protecting the retaining wall 2 is achieved; it should be noted that the lifting control platform 703 is adjusted by controlling the lifting switch 704, so that the pulling force of the spring 702 can be adjusted, the pulling force of the spring 704 is balanced with the internal pressure of the air pressure partition 105, and the rubber surface 103 can be kept on a reference plane after being deformed; in addition, the sand bag layer 3 is arranged on the inner side of the air pressure partition plate 1, the sand bag layer 3 can further reduce the influence of tamping on a retaining wall and plays a role in draining water in an embankment, in addition, the embankment is filled in layers on the inner side of the sand bag layer 3, and the sand bag layer 3 and an embankment protective layer are protected, so that a uniform compaction mode can be adopted in the width of a road width during filling, the difference of mechanical properties of a roadbed caused by different compaction modes is avoided, and the construction progress is accelerated; the inner side of the sand bag layer 3 is provided with the anti-filtration geotextile 6, which can keep soil particles under the action of osmotic pressure from losing, prevent the collapse of the embankment filled soil 4 and maintain the stability of the embankment filled soil 4.
Example 2:
referring to fig. 1-4, the construction method of the retaining wall system for reducing the construction influence includes the following steps:
s1, according to the design drawing of the retaining wall 2, lofting on site, excavating a foundation and testing the bearing capacity of the groove foundation;
s2, erecting a mould and pouring retaining wall concrete, and maintaining the retaining wall concrete until the strength meets the requirement;
s3, installing an air pressure energy dissipation layer 1, and connecting an air pressure partition plate 105 according to the length of filling and paving;
s4, injecting air into the air pressure partition 105 by using an air pressure pump, monitoring the internal air pressure by using an air pressure monitoring device, and maintaining the internal pressure of the air pressure partition 105;
s5, stacking the sand bag layer 3 on the right side of the air pressure energy dissipation layer 1, and paving a reverse filter geotextile 6 on the right side of the sand bag layer 3;
s6, filling embankment filling soil 4 in layers, wherein in the filling process, the tamping force generated by tamping the embankment filling soil 4 is released by the air pressure partition plate 105 through the energy dissipation device 7, and specifically, the air pressure partition plate 105 is released by the spring 702 under the extrusion force;
the spring 702 is fixedly connected with the lifting control platform 703, and the lifting control platform 703 is adjusted by controlling the lifting switch 704, so that the tension of the spring 702 can be adjusted, the tension of the spring 702 is balanced with the internal pressure of the air pressure partition plate 105, and the rubber surface 103 is always kept on a reference plane;
s7, the air pressure energy dissipation layer 1 is drawn out, roadbed backfill is filled into the filling channel 101 in the drawing process and tamped, and springback of the roadbed caused by the drawing of the air pressure energy dissipation layer 1 is reduced;
and S8, repeating the steps S3-S8 to fill the roadbed backfill into the top end of the retaining wall 2.
The scheme in this embodiment can be selectively combined with the scheme in other embodiments.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. The utility model provides a reduce barricade system that construction was influenced, includes atmospheric pressure heat dissipation layer (1), atmospheric pressure baffle (105) and ground line (5), its characterized in that: a retaining wall (2) is arranged above the left side of the ground line (5), an air pressure energy dissipation layer (1) is arranged on the right side of the retaining wall (2), a sand bag layer (3) is arranged on the right side of the air pressure energy dissipation layer (1), a reverse filter geotextile (6) is arranged on the right side of the sand bag layer (3), and embankment filling soil (4) is arranged on the right side of the reverse filter geotextile (6);
the air pressure energy dissipation layer (1) comprises a filler channel (101), a metal frame (102), a rubber surface (103), a communication clamping groove (104), an air pressure partition plate (105) and a communication groove hole (106);
the outer wall of the air pressure partition plate (105) is respectively wrapped with a metal frame (102) and a rubber surface (103), the metal frame (102) is wrapped on the upper, lower, front and rear outer walls of the air pressure partition plate (105), the rubber surface (103) is tightly contacted with the outer wall of the right side of the air pressure partition plate (105), and a filler channel (101) is arranged on the left side of the air pressure partition plate (105);
a communicating clamping groove (104) is formed in the front end of the air pressure partition plate (105), a communicating groove hole (106) is formed in the top of the air pressure partition plate, and sealing rings are arranged inside the communicating clamping groove (104) and the communicating groove hole (106);
an energy dissipation device (7) is arranged above the pneumatic partition plate (105), and the energy dissipation device (7) comprises a hammer-shaped energy dissipation arm (701), a spring (702), a lifting control platform (703), a lifting switch (704) and an air cabin (705);
an air cabin (705) is arranged above the air pressure partition plate (105), lifting control platforms (703) are arranged on the left side and the right side of the top end of the air cabin (705), a hammer type energy dissipation force arm (701) is arranged inside the air cabin, a plurality of springs (702) are fixedly connected below the left end and the right end of the hammer type energy dissipation force arm (701), and the bottoms of the springs (702) are fixedly connected with the lifting control platforms (703);
and a lifting switch (704) is arranged outside the lifting control platform (703).
2. The retaining wall system for reducing construction impact of claim 1, wherein: the air pressure partition plates (105) are provided with a plurality of groups, and each group of air pressure partition plates (105) are communicated and connected through the communicating clamping grooves (104);
the communication slot hole (106) is communicated with the bottom of the air cabin (705).
3. The retaining wall system for reducing construction impact of claim 1, wherein: the sand bag layer (3) is formed by stacking a plurality of sand bags.
4. The retaining wall system for reducing construction impact of claim 1, wherein: an air pressure monitoring device is arranged in the air pressure partition plate (105).
5. The construction method of the retaining wall system for reducing construction influence according to any one of claims 1 to 4, wherein: the method comprises the following steps:
s1, according to the design drawing of the retaining wall (2), lofting on site, excavating a foundation and testing the bearing capacity of a groove base;
s2, erecting a mould and pouring retaining wall concrete, and maintaining the retaining wall concrete until the strength meets the requirement;
s3, installing the air pressure energy dissipation layer (1), and connecting the air pressure partition plate (105) according to the length of filling and paving;
s4, injecting air into the air pressure partition plate (105) by using an air pressure pump, monitoring the internal air pressure by using an air pressure monitoring device, and keeping the internal pressure of the air pressure partition plate (105);
s5, stacking the sand bag layer (3) on the right side of the air pressure energy dissipation layer (1), and paving a reverse filter geotextile (6) on the right side of the sand bag layer (3);
s6, filling the embankment filling soil (4) layer by layer, wherein in the filling process, the tamping force generated when the embankment filling soil (4) is tamped is released by the air pressure partition plate (105) through the energy dissipater (7), and specifically, the air pressure partition plate (105) is released by the spring (702) under the extrusion force;
the spring (702) is fixedly connected with the lifting control platform (703), and the lifting control platform (703) is adjusted by controlling a lifting switch (704), so that the tension of the spring (702) can be adjusted, the tension of the spring (702) is balanced with the internal pressure of the air pressure partition plate (105), and the rubber surface (103) is always kept on a reference plane;
s7, the air pressure energy dissipation layer (1) is drawn out, roadbed backfill is filled into the filling channel (101) in the drawing process and tamped, and springback of the roadbed caused by the drawing of the air pressure energy dissipation layer (1) is reduced;
and S8, repeating the steps S3-S8 to fill the roadbed backfill into the top end of the retaining wall (2).
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| CN202011103042.XA CN112240031B (en) | 2020-10-15 | 2020-10-15 | Retaining wall system capable of reducing construction influence and construction method thereof |
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| CN108708393A (en) * | 2018-06-04 | 2018-10-26 | 广东工业大学 | A kind of Vibrant buffer layer of retaining wall |
| CN110106913B (en) * | 2019-04-22 | 2020-03-17 | 河海大学 | Damping panel assembled reinforced earth retaining wall and construction method thereof |
| CN110004973B (en) * | 2019-04-28 | 2023-11-03 | 西安航空学院 | Landslide prevention protection retaining wall |
| CN110453724A (en) * | 2019-09-18 | 2019-11-15 | 安徽工程大学 | A kind of novel fabricated antidetonation counterfort retaining wall |
| KR102116112B1 (en) * | 2019-12-04 | 2020-05-27 | 나재술 | Constructron method of earth retaining wall |
| CN111622259B (en) * | 2020-06-05 | 2022-04-19 | 安徽仲泽恒建设工程有限公司 | Rapid-forming highway retaining wall |
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