CN210561967U - Channel structure for improving flood control standard of existing river levee - Google Patents

Channel structure for improving flood control standard of existing river levee Download PDF

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Publication number
CN210561967U
CN210561967U CN201920898255.2U CN201920898255U CN210561967U CN 210561967 U CN210561967 U CN 210561967U CN 201920898255 U CN201920898255 U CN 201920898255U CN 210561967 U CN210561967 U CN 210561967U
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China
Prior art keywords
channel structure
structure body
bottom plate
flood control
control standard
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Withdrawn - After Issue
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CN201920898255.2U
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Chinese (zh)
Inventor
汪子豪
周丹
尤岭
高朝阳
欧阳院平
刘峰
谢桥军
苏晓文
章微
尹祖超
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Changjiang Institute of Survey Planning Design and Research Co Ltd
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Changjiang Institute of Survey Planning Design and Research Co Ltd
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Priority to CN201920898255.2U priority Critical patent/CN210561967U/en
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A10/00TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
    • Y02A10/30Flood prevention; Flood or storm water management, e.g. using flood barriers

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Abstract

The utility model relates to a river levee bank engineering field and road engineering technical field disclose an improve access structure of existing river levee flood control standard, include the access structure body of laying on it along the levee face line direction of flood control, the cross section of access structure body is the box, the access structure body includes the bottom plate, the side wall of roof and both sides, the bottom plate is laid on the levee face of flood control, access structure body both ends are uncovered section, the side wall homogeneous phase that is located the uncovered section in access structure body both ends is to roof longitudinal extension, the bottom plate that is located the uncovered section in access structure body both ends all outwards climbs through the longitudinal gradient, height such as the bottom plate top surface line to the vertical tip of bottom plate and the side wall top surface line of side wall. The utility model provides the high access structure of existing river levee flood control standard has effectively reduced the vertical load of newly-increased and the horizontal load effect of original barricade, and the construction risk is little, and overall stability is good.

Description

Channel structure for improving flood control standard of existing river levee
Technical Field
The utility model relates to a river bank engineering field and road engineering technical field, concretely relates to improve access structure of existing river bank flood control standard.
Background
With the gradual increase of economy in China, the flood control standard of urban areas is increased day by day, and many existing river bank protection projects cannot meet the current flood control standard and need to be processed by combining actual conditions.
In contrast, the flood control safety of the existing river bank is generally realized by combining engineering measures, non-engineering measures, flood control scheduling and the like, but in the prior art, the improvement of the existing river bank from the perspective of the engineering measures may have some technical problems.
The existing protection embankment outside generally is equipped with upright concrete retaining wall, if adopt newly-built reinforced earth retaining wall on former retaining wall to raise the embankment to required elevation, can cause the not enough scheduling problem of original retaining wall bearing capacity. Even if the pile foundation joist type foundation is adopted for retreating platform conversion, the problems of difficult construction and the like are caused, and the pile foundation outside the joist can influence the attractiveness and coordination of the embankment, so that the landscape construction cost needs to be increased.
Therefore, in order to reasonably utilize the existing roadbed structure and save the engineering investment, the research of the feasible engineering structure for lifting the embankment and the construction method thereof has important significance.
Disclosure of Invention
The utility model aims at exactly being not enough to above-mentioned technique, provide an improve the access structure of existing river levee flood control standard, effectively reduced the vertical load of newly-increased and the horizontal load effect of original barricade, and the construction risk is little, and overall stability is good.
For realizing above-mentioned mesh, the utility model discloses an improve existing river levee flood control standard's access structure, include the access structure body of laying on it along the levee face line direction of flood control, the cross section of access structure body is the box, the access structure body includes the side wall of bottom plate, roof and both sides, the bottom plate is laid on the levee face of flood control, access structure body both ends are uncovered section, are located the side wall homogeneous phase of the uncovered section in access structure body both ends is right roof longitudinal extension is located the bottom plate of the uncovered section in access structure body both ends all outwards climbs through the longitudinal slope side wall, extremely the bottom plate top surface line of the vertical tip of bottom plate with side wall top surface line height.
Preferably, the bottom plate below is equipped with a plurality of pile foundations, the pile foundation is located bottom plate central line below or river course one side below is kept away from to the bottom plate, has effectively reduced the newly-increased vertical load effect of original flood control dam barricade.
Preferably, the pile foundation is the bored concrete pile, the pile diameter of pile foundation is 1 ~ 2m, the concrete intensity grade of pile foundation is C30 under water, the pile foundation imbeds the depth of apoplexy basement rock and is not less than 3 times the pile diameter, improves the load bearing capacity of pile foundation.
Preferably, a landscape greening project is arranged above the top plate.
Preferably, a concrete cushion is paved between the flood bank face and the bottom plate.
Preferably, the access structure body adopts the C35 concrete that waterproof grade is P6, be equipped with a plurality of movement joints on the access structure body, the width of movement joint is 15 ~ 25mm, the movement joint is 15 ~ 25m along fore-and-aft interval, the movement joint is done the construction joint concurrently.
Preferably, a stone retaining wall is arranged on one side, far away from the river channel, of the channel structure body.
Preferably, the channel structure body is filled with gravel concrete on the side away from the river channel.
Compared with the prior art, the utility model, have following advantage:
1. the channel structure body is a cast-in-place box-shaped section, so that the construction risk is small, the overall stability is good, the interior is hollow, the underground space utilization is increased, the man-vehicle separation is realized, and the landscape construction is facilitated;
2. the channel structure body has small dead weight, and the newly increased vertical load effect of the original flood bank retaining wall is effectively reduced by combining the pile foundation;
3. the soil pressure generated by filling soil on one side of the channel structure body, which is far away from the river, can act on the pile foundation and the original flood bank retaining wall together, so that the horizontal load effect borne by the original flood bank retaining wall is effectively reduced;
4. this access structure does not produce lateral pressure to original breakwater barricade, only transmits vertical pressure, is favorable to the stability of original breakwater barricade.
Drawings
Fig. 1 is a typical cross-sectional view of a channel structure of the present invention for improving the flood protection standard of an existing river bank;
fig. 2 is a schematic cross-sectional view of an open section in a channel structure for improving the flood control standard of the river bank according to the present invention;
FIG. 3 is a schematic longitudinal section of an open section of a channel structure of the present invention for improving the flood protection standards of an existing river bank;
fig. 4 is a schematic cross-sectional view of another embodiment of the channel structure of the present invention for improving the flood protection standard of the existing river bank.
The components in the figures are numbered as follows:
the flood bank comprises a flood bank embankment face 1, a bottom plate 2, side walls 3, a top plate 4, an open section 5, a channel structure body 6, a bottom plate top surface line 7, a side wall top surface line 8, a pile foundation 9, a river channel 10, a landscape greening project 11, a concrete cushion 12, broken stone concrete 13, a stone retaining wall 14, a flood bank embankment retaining wall 15, a top plate bottom surface line 16, a submerging treatment line 17, an existing embankment project contour line 18, a normal water storage position 19, a top plate top surface line 20, a pavement paving line 21 and a bottom plate bottom surface line 22.
Detailed Description
The present invention will be described in further detail with reference to the following drawings and specific embodiments.
In this embodiment, the existing embankment project includes a built road project and a protection project, the embankment has different forms such as a high-barrier type and a two-step slope protection type, and the ground line of the existing flood control embankment does not meet the flood control standard of the urban area.
As shown in fig. 1 and 2, the conventional bank construction is illustrated by an existing bank construction outline 18, the horizontal section of which is the bank face 1, and the top surface of the bank wall 15 is located at a level above the normal water level 19 but below the submerged disposal line 17. The utility model provides an improve existing river levee flood control standard's access structure, include the access structure body 6 of laying on it along flood control levee embankment 1 line direction, the cross section of access structure body 6 is the box, access structure body 6 includes bottom plate 2, roof 4 and both sides side wall 3, bottom plate 2 lays on flood control embankment 1, concrete bed course 12 has been laid between flood control embankment 1 and bottom plate 2, bottom plate 2 upper berth has the road surface, roof 4 is located above flooding treatment line 17, roof 4's top is equipped with view greening engineering 11, access structure body 6 keeps away from river course 10 one side and has arranged strip stone barricade 14 in order to satisfy current planning, access structure body 6 both ends are open section 5, the side wall 3 that is located open section 5 in access structure body 6 both ends all extends longitudinally relative to roof 4, bottom plate 2 that is located open section 5 in access structure body 6 both ends all climbs through the longitudinal slope outwards, the bottom plate top surface line 7 to the longitudinal end part of the bottom plate 2 is as high as the side wall top surface line 8 of the side wall 3 and is positioned above the submerging treatment line 17.
In addition, 2 below the bottom plate is equipped with a plurality of pile foundations 9, and pile foundations 9 are two rows altogether, and one row of pile foundations 9 is located 2 central lines below of bottom plate, and another row of pile foundations 9 is located bottom plate 2 and keeps away from river course 10 one side below, and in this embodiment, pile foundations 9 is the bored concrete pile, and pile foundations 9's pile diameter is 1.5m, and pile foundations 9's concrete intensity grade is C30 under water, and the degree of depth of digestion bedrock is 3 times's pile diameter in the pile foundations 9 embedding.
In this embodiment, the channel structure body 6 is made of C35 concrete with a waterproof grade of P6, the channel structure body 6 is provided with a plurality of deformation joints, the width of each deformation joint is 20mm, the longitudinal distance between the deformation joints is 20m, and the deformation joints are also used as construction joints.
As shown in fig. 3, the relative elevation changes of the open sections 5 of the channel structure body 6 are illustrated by the top deck surface lines 20, the top deck bottom surface lines 16, the pavement laying lines 21, the bottom deck top surface lines 7, the bottom deck bottom surface lines 22 and the side wall top surface lines 8.
In addition, as shown in fig. 4, in another embodiment, the channel structure body 6 is filled with gravel concrete 13 on the side away from the river 10.
In other embodiments, the pile foundation 9 may not be provided when the channel structure body 6 is far enough away from the original breakwater retaining wall 15 by calculation, and the lateral pressure on the original breakwater retaining wall 15 can be ignored.
The construction method for improving the channel structure of the existing river bank flood control standard in the embodiment comprises the following steps: the method comprises the following steps:
A) carrying out geological exploration work on the conventional bank protection project, additionally drilling the outer side of the flood bank retaining wall 15, detecting the geological condition of the wall bottom of the flood bank retaining wall 15, calculating the standard section size and reinforcing bars of the channel structure body 6, and calculating the diameter, length and number of required pile foundations 9;
B) chiseling off the flood bank face 1 partially, placing the channel structure body 6 on the flood bank face 1, paving a concrete cushion layer 12 between the flood bank face 1 and the concrete bottom plate 2, positioning a top plate bottom surface line 16 of the concrete top plate 4 above a submerged treatment line 17, and embedding the pile foundation 9 into the stroke basement rock;
C) arranging a plurality of deformation joints on the channel structure body 6, wherein the width of each deformation joint is 20mm, and the longitudinal distance between the deformation joints is 20 m;
D) arranging a landscape greening project 11 above the concrete top plate 4;
E) and a stone retaining wall 14 is arranged on the outer side of the concrete side wall 3 far away from the river channel 10.
Likewise, in a second embodiment, in step E), the concrete sidewalls 3 remote from the river 10 are filled with gravel concrete 13 on the outside.
The utility model improves the channel structure of the existing river bank flood control standard, the channel structure body 6 is a cast-in-place box-shaped section, the construction risk is small, the integral stability is better, the interior is hollow, the underground space utilization is increased, the man-vehicle separation is realized, and the landscape construction is facilitated; the channel structure body 6 has small self weight and effectively reduces the newly-increased vertical load effect of the original flood bank retaining wall 15 by combining the pile foundation 9; the soil pressure generated by filling soil outside the concrete side wall 3 far away from the river channel 10 can act on the pile foundation 9 and the original flood bank retaining wall 15 together, so that the horizontal load effect borne by the original flood bank retaining wall 15 is effectively reduced; this access structure does not produce lateral pressure to original breakwater barricade 15, only transmits vertical pressure, is favorable to original breakwater barricade 15's stability.

Claims (8)

1. The utility model provides an improve access structure of existing river levee flood control standard, includes and lays access structure body (6) on it along flood control levee embankment face (1) line direction, its characterized in that: the cross section of channel structure body (6) is the box, channel structure body (6) are side wall (3) including bottom plate (2), roof (4) and both sides, bottom plate (2) are spread on flood bank embankment face (1), channel structure body (6) both ends are opening section (5), are located side wall (3) homogeneous phase of channel structure body (6) both ends opening section (5) is relative roof (4) longitudinal extension is located bottom plate (2) of channel structure body (6) both ends opening section (5) all outwards climbs through the longitudinal slope, extremely bottom plate top surface line (7) of the vertical tip of bottom plate (2) with side wall top surface line (8) of side wall (3) are equal height.
2. The channel structure for improving the flood control standard of the existing river bank according to claim 1, wherein: bottom plate (2) below is equipped with a plurality of pile foundations (9), pile foundation (9) are located bottom plate (2) central line below or river course (10) one side below is kept away from in bottom plate (2).
3. The channel structure for improving the flood control standard of the existing river bank according to claim 2, wherein: the pile foundation (9) are the drilling bored concrete pile, the stake footpath of pile foundation (9) is 1 ~ 2m, the concrete intensity grade of pile foundation (9) is C30 under water, the degree of depth of stroke metaplasia basement rock is not less than 3 times's stake footpath in pile foundation (9) embedding.
4. The channel structure for improving the flood control standard of the existing river bank according to claim 3, wherein: and a landscape greening project (11) is arranged above the top plate (4).
5. The channel structure for improving the flood control standard of the existing river bank according to claim 4, wherein: and a concrete cushion layer (12) is paved between the flood bank embankment surface (1) and the bottom plate (2).
6. The channel structure for improving the flood control standard of the existing river bank according to claim 5, wherein: the waterproof channel structure is characterized in that the channel structure body (6) is made of C35 concrete with the waterproof grade of P6, a plurality of deformation joints are arranged on the channel structure body (6), the width of each deformation joint is 15-25 mm, the deformation joints are 15-25 m along the longitudinal interval, and the deformation joints are also used as construction joints.
7. The channel structure for improving the flood control standard of the existing river bank according to claim 6, wherein: a stone retaining wall (14) is arranged on one side, far away from the river channel (10), of the channel structure body (6).
8. The channel structure for improving the flood control standard of the existing river bank according to claim 6, wherein: one side, far away from the river channel (10), of the channel structure body (6) is filled with gravel concrete (13).
CN201920898255.2U 2019-06-14 2019-06-14 Channel structure for improving flood control standard of existing river levee Withdrawn - After Issue CN210561967U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920898255.2U CN210561967U (en) 2019-06-14 2019-06-14 Channel structure for improving flood control standard of existing river levee

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Application Number Priority Date Filing Date Title
CN201920898255.2U CN210561967U (en) 2019-06-14 2019-06-14 Channel structure for improving flood control standard of existing river levee

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110205982A (en) * 2019-06-14 2019-09-06 长江勘测规划设计研究有限责任公司 Improve the channel design and its construction method of existing river levee flood control standard

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110205982A (en) * 2019-06-14 2019-09-06 长江勘测规划设计研究有限责任公司 Improve the channel design and its construction method of existing river levee flood control standard
CN110205982B (en) * 2019-06-14 2024-04-12 长江勘测规划设计研究有限责任公司 Channel structure for improving flood control standard of existing river levee and construction method thereof

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