CN104131530B - Levee revetment structure under rapid and soft foundation severe environment - Google Patents
Levee revetment structure under rapid and soft foundation severe environment Download PDFInfo
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- CN104131530B CN104131530B CN201410326506.1A CN201410326506A CN104131530B CN 104131530 B CN104131530 B CN 104131530B CN 201410326506 A CN201410326506 A CN 201410326506A CN 104131530 B CN104131530 B CN 104131530B
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Abstract
The invention relates to a levee revetment structure under the rapid and soft foundation severe environment. The levee revetment structure under the rapid and soft foundation severe environment comprises cyclopean aggregates, reinforced concrete panels laid on the upstream faces of the cyclopean aggregates, prefabricated concrete wave reducing blocks arranged on the reinforced concrete panels, a reinforced concrete anti-settlement plate poured at the tops of the cyclopean aggregates, light soil stones constructed on the reinforced concrete anti-settlement plate in a filling mode, a concrete cushion laid and constructed at the upper portions of the light soil stones, a landscape road laid and constructed on the concrete cushion, and a sand and aggregate cushion serving as a transition layer of the downstream sides of the cyclopean aggregates and weathered materials of a levee body. According to the levee revetment structure under the rapid and soft foundation severe environment, bearing force of a soft foundation is improved by throwing, filling and crushing the cyclopean aggregates, damage to the levee revetment structure caused by non-uniform settlement in the later stage of cyclopean aggregate crushing is effective relieved, and the problems in a traditional method that non-uniform settlement is large, the levee revetment structure is easily damaged, the mechanical degree is low, a construction period is long, and efficiency is low are solved.
Description
Technical field
The present invention relates to a kind of levee revetment structure, be specifically related to levee revetment structure under the soft base adverse circumstances of a kind of torrent.
Background technology
During fill, dike line options is subject to river potential condition restriction, generally can only select be close to river and build, and Quito, China flood land is unconsolidated sediment in the Quaternary Period, bearing capacity is poor, some rivers are by landform and runoff influence, between flood period, large, the flow velocity of flow is anxious, causes bank erosion destruction, foundation uneven settlement deformation very general., under this complex working condition environment, often easily there is levee body safeguard structure stress destruction or differential settlement drawing crack damage, finally cause the landslide failure of whole levee body to destroy in conventional method fill.Under above-mentioned adverse circumstances, build dyke, what employing was more at present has flexible levee body, riprap protection and Gravity Retaining Wall shore protection three kinds of methods, but above method all exists larger deficiency and defect:
(1) flexible levee body
Flexible levee body with earth embankment and native stone combination construction comparatively common, multiselect ecology typed bank revetment, generally has grassed slope, three dimension geotechnical gauze pad, precast concrete or plastic grass planting brick, concrete precast block self-embedding barricade and eco-concrete etc.Flexible levee body fills with local material and forms, conduct oneself with dignity little, adaptive deformation ability strong, not high to fundamental importance, has quick construction, easy, economic advantage.But it is more weak that shortcoming is protective capacities, wash away at high-velocity flow and often occur hole concave change shape with shore protection under foundation uneven settlement effect, outward appearance is damaged, in addition because levee body and protection body carry external load jointly, adds the risk of levee body main body landslide failure.
(2) riprap protection
Riprap protection is then many to be thrown rubble at levee toe, rolls egagropilus stone and Ge Bin gabion, for top rigid structures improves bearing capacity.This way has quick construction, easy, economic advantage, but treatment effect is not desirable especially, although levee toe jackstone has delayed washing away of levee toe, enhance levee body stability against sliding, jackstone processing method randomness is larger, easily there is the weak area of throwing, under lasting high-velocity flow dissection, levee slide unstability situation is still general, and levee toe jackstone has also increased the weight of river alluvial in addition, cause river water level to promote, increase river levee and to burst risk.
(3) Gravity Retaining Wall shore protection
Gravity Retaining Wall shore protection usually bottom levee body upstream face build barricade by laying bricks or stones, top counterfort virescence.This structure can effectively resist washing away of river on the one hand, greatly can improve the stability of levee body on the other hand, it is low that shortcoming is that mechanization degree built by laying bricks or stones by barricade, the differential settlement ability adapting to ground is also very weak, easily occur that differential settlement destroys, have method to improve the stability on Gravity Retaining Wall basis by pile formula basis at present, but this way technique process is loaded down with trivial details, cost is also high, is difficult to large-scale employing.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides and a kind ofly coordinate that ground deformability is strong, protection effect good, mechanization degree is high, levee revetment structure that investment is lower.
The present invention adopts following technical scheme:
Levee revetment structure under the soft base adverse circumstances of a kind of torrent of the present invention, comprise levee body safeguard structure and levee body leakage preventing structure, described levee body safeguard structure comprises egagropilus stone throwing after vibration, and to roll layered rolling closely knit, steel concrete panel is laid on egagropilus stone upstream face, precast concrete subtracts unrestrained block and is placed on steel concrete panel, steel concrete anti-settling plate is cast in egagropilus stone top, light soil gravel embankment is on steel concrete anti-settling plate, concrete cushion making is on light soil building stones top, view urban road laying is on concrete cushion, sand hardcore bed is used as the transition zone of egagropilus stone land side and levee body Weathered Material, described levee body leakage preventing structure comprise landscape planting bank protection making in levee body Weathered Material upstream face side, grassed slope making in levee body Weathered Material back side side, levee body Weathered Material backfill between sand hardcore bed and drainage prism, it is closely knit that vibrating roller crushes layered rolling, levee crown road performance is at levee body Weathered Material top, and drainage prism is arranged on levee body Weathered Material toe.
Levee revetment structure under the soft base adverse circumstances of torrent of the present invention, what need soft foundation both sides to excavate into 1:1.5 before described egagropilus stone throwing rolls puts slope, to strengthen loaded area and the stability against sliding of egagropilus stone.
Levee revetment structure under the soft base adverse circumstances of torrent of the present invention, needs to use vibrating roller to crush layered rolling closely knit after egagropilus stone throwing.
Levee revetment structure under the soft base adverse circumstances of torrent of the present invention, must carry out base process clearly to soft foundation before the backfill of levee body Weathered Material, adopt vibrating roller to crush layered rolling closely knit during backfill.
Levee revetment structure under the soft base adverse circumstances of torrent of the present invention, backfill Weathered Material toe arranges drainage prism to reduce levee body phreatic line and the seepage deformation preventing impermeable soil, and increases levee body stability.
Levee revetment structure under the soft base adverse circumstances of torrent of the present invention, steel concrete anti-settling plate be cast in egagropilus stone top and with steel concrete panel-shaped integrally, to improve the differential settlement coordination ability of safeguard structure.
Levee revetment structure under the soft base adverse circumstances of torrent of the present invention, light soil building stones are filled to alleviate the deadweight of levee body safeguard structure in described steel concrete anti-settling plate top, alleviate the differential settlement on basis.
beneficial effect
Levee revetment structure under the soft base adverse circumstances of a kind of torrent of the present invention, throwing is utilized to roll the bearing capacity of egagropilus stone raising soft foundation, steel concrete panel and precast concrete is utilized to subtract the synergy of unrestrained block, slow down current scour and sea slap active force, steel concrete anti-settling plate and steel concrete panel is utilized to improve the globality of safeguard structure, and effectively slow down the destruction of rolling egagropilus stone later stage differential settlement and safeguard structure being caused, solve conventional method levee body structure differential settlement large, safeguard structure cracky, mechanization degree is low, long in time limit, the problems such as efficiency is low, it is strong that this has coordination ground deformability, protection effect is good, mechanization degree is high, invest the advantages such as lower.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is for subtracting unrestrained block plane structure schematic diagram;
Fig. 3 is for subtracting unrestrained block plane structure sectional view.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is further described.
As shown in Figure 1-Figure 3, comprise levee body safeguard structure and levee body agent structure, described levee body safeguard structure comprises egagropilus stone 1 vibrating roller, and to crush layered rolling closely knit, steel concrete panel 2 is laid in and rolls on egagropilus stone 1 upstream face, precast concrete subtracts unrestrained block 3 and is placed on steel concrete panel 2, steel concrete anti-settling plate 4 is cast in egagropilus stone 1 top, light soil building stones 5 fill on steel concrete anti-settling plate 4, concrete cushion 6 making is on light soil building stones 5 top, view road 7 making is on concrete cushion 6, sand hardcore bed 8 backfills the transition zone of 11 as egagropilus stone 1 land side and levee body Weathered Material, described levee body leakage preventing structure comprise landscape planting bank protection 9 making in levee body Weathered Material 11 upstream face side, grassed slope 10 making in levee body Weathered Material 11 back side side, levee body Weathered Material 11 backfills between sand hardcore bed 8 and drainage prism 13, it is closely knit that vibrating roller crushes layered rolling, levee crown road 12 is built at levee body Weathered Material 11 top, and drainage prism 13 is arranged on levee body Weathered Material 11 levee toe.
In the present embodiment, what egagropilus stone 1 two bottom sides need excavate 1:1.5 puts slope, can increase loaded area and stability against sliding; It is closely knit that egagropilus stone 1 and levee body Weathered Material 11 all need to crush layered rolling with vibrating roller; Subtracting unrestrained block 3 is placed on steel concrete panel 2, can slow down current scour and sea slap active force; Steel concrete anti-settling plate 4 and steel concrete panel 2 water and build up an entirety, the globality of egagropilus stone can be promoted, and effectively slow down and roll egagropilus stone later stage differential settlement to the destruction of safeguard structure, steel concrete panel 2 longitudinally arranges the shrinkage joint of disconnection every 20 meters of need, steel concrete panel 2 drawing crack is caused to prevent thermal stresses, drainage prism 13 reduces levee body phreatic line and prevents the seepage deformation of earth material, and supports levee body increase stability.
When practice of construction, first with construction machinery, base process is clearly carried out to fill section, what 1:1.5 was excavated in egagropilus stone 1 spats both sides puts slope, after mechanical loading throwing egagropilus stone 1, layered rolling is closely knit, until design altitude, after egagropilus stone 1 rolls, top paving back-up sand hardcore bed 8, then pouring reinforcement concrete anti-settling plate 4, after the maintenance of steel concrete anti-settling plate 4, carry out light soil building stones 5 to backfill, finally carry out steel concrete panel 2 to lay and subtract unrestrained block 3 with precast concrete and place work, above-mentioned work can carry out drainage prism 13 construction while carrying out and levee body Weathered Material 11 backfills layered rolling, to reach the object of construction machinery optimization use and accelerating construction progress, after levee body Weathered Material 11 backfills layered rolling, carry out upstream batter landscape planting 9 and downstream slope grassed slope 10 works, finally complete levee crown road 12 and build work.
Egagropilus stone 1 filled height can be passed through calculating and meets whole levee body safeguard structure stability and river degradation depth requirements and obtain, and does not need to fill too high, thus reaches the effect reducing investment outlay and reduce soft base load; The elevation of view road 11 and levee crown road 12 is calculated by the hydrology and river flood control standard is determined, river course ordinary water level should lower than view road 11.
The above is only the preferred embodiment of the present invention; be noted that for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (7)
1. a levee revetment structure under the soft base adverse circumstances of torrent, is characterized in that: comprise levee body safeguard structure and levee body leakage preventing structure;
Described levee body safeguard structure comprises egagropilus stone (1), steel concrete panel (2) is laid on egagropilus stone (1) upstream face, precast concrete subtracts unrestrained block (3) and is placed on steel concrete panel (2), steel concrete anti-settling plate (4) is cast in egagropilus stone (1) top, light soil building stones (5) fill on steel concrete anti-settling plate (4), concrete cushion (6) making is on light soil building stones (5) top, view road (7) making is on concrete cushion (6), sand hardcore bed (8) is as the transition zone of egagropilus stone (1) land side and levee body Weathered Material (11),
Described levee body leakage preventing structure comprise landscape planting bank protection (9) making in levee body Weathered Material (11) upstream face side, grassed slope (10) making in levee body Weathered Material (11) back side side, levee body Weathered Material (11) backfill between sand hardcore bed (8) and drainage prism (13), it is closely knit that vibrating roller crushes layered rolling, levee crown road (12) is built at levee body Weathered Material (11) top, and drainage prism (13) is arranged on levee body Weathered Material (11) toe.
2. levee revetment structure under the soft base adverse circumstances of torrent according to claim 1, is characterized in that: what 1:1.5 was excavated in the soft foundation both sides before described egagropilus stone (1) throwing rolls puts slope.
3. levee revetment structure under the soft base adverse circumstances of torrent according to claim 1, is characterized in that: crush layered rolling with vibrating roller after egagropilus stone (1) throwing closely knit.
4. levee revetment structure under the soft base adverse circumstances of torrent according to claim 1, is characterized in that: carry out base process clearly to soft foundation before levee body Weathered Material (11) backfill, adopt vibrating roller to crush layered rolling closely knit during backfill.
5. levee revetment structure under the soft base adverse circumstances of torrent according to claim 1, is characterized in that: backfill Weathered Material (11) toe arranges drainage prism (13).
6. levee revetment structure under the soft base adverse circumstances of torrent according to claim 1, is characterized in that: steel concrete anti-settling plate (4) is cast in egagropilus stone (1) top and forms entirety with steel concrete panel (2).
7. levee revetment structure under the soft base adverse circumstances of torrent according to claim 1, is characterized in that: light soil building stones (5) are filled on steel concrete anti-settling plate (4) top.
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| CN201410326506.1A CN104131530B (en) | 2014-07-10 | 2014-07-10 | Levee revetment structure under rapid and soft foundation severe environment |
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| CN201410326506.1A CN104131530B (en) | 2014-07-10 | 2014-07-10 | Levee revetment structure under rapid and soft foundation severe environment |
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| CN104131530B true CN104131530B (en) | 2015-05-20 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105951851A (en) * | 2016-06-05 | 2016-09-21 | 中交路桥建设有限公司 | Disposal method for landslide mass with toe positioned in river channel |
| CN107268534A (en) * | 2017-01-06 | 2017-10-20 | 江苏省科佳工程设计有限公司 | Approach channel shore protection repairs structure and its method |
| CN106930231B (en) * | 2017-02-21 | 2019-01-15 | 浙江水利水电学院 | A kind of construction method applied to engineering flood bank reinforcing of passing the flood period |
| CN108487191B (en) * | 2018-04-27 | 2020-10-20 | 河南创辉水利水电工程有限公司 | Method for carrying out double protection on river slope |
| CN109356091B (en) * | 2018-11-21 | 2024-01-19 | 中国电建集团成都勘测设计研究院有限公司 | Mountain stream river embankment project |
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| JP2003328375A (en) * | 2002-05-16 | 2003-11-19 | San Buresu:Kk | Edge wall of retaining wall |
| CN2900624Y (en) * | 2006-04-13 | 2007-05-16 | 贵阳铝镁设计研究院 | Saving type stone stacking dam structure |
| CN101698990A (en) * | 2009-10-20 | 2010-04-28 | 中国水电顾问集团华东勘测设计研究院 | Assembled protective slope structure and construction method thereof |
| CN204000752U (en) * | 2014-07-10 | 2014-12-10 | 河海大学 | Levee revetment structure under the soft base adverse circumstances of a kind of torrent |
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2014
- 2014-07-10 CN CN201410326506.1A patent/CN104131530B/en active Active
Patent Citations (4)
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|---|---|---|---|---|
| JP2003328375A (en) * | 2002-05-16 | 2003-11-19 | San Buresu:Kk | Edge wall of retaining wall |
| CN2900624Y (en) * | 2006-04-13 | 2007-05-16 | 贵阳铝镁设计研究院 | Saving type stone stacking dam structure |
| CN101698990A (en) * | 2009-10-20 | 2010-04-28 | 中国水电顾问集团华东勘测设计研究院 | Assembled protective slope structure and construction method thereof |
| CN204000752U (en) * | 2014-07-10 | 2014-12-10 | 河海大学 | Levee revetment structure under the soft base adverse circumstances of a kind of torrent |
Non-Patent Citations (1)
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| 关于水利工程中堤防护岸工程施工技术的研究;费明康 等;《中国水运》;20131031;第13卷(第10期);211-212 * |
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