CN202787331U - Large-deformation seepage-proofing water stop structure of crown of deep overburden layer foundation cut-off wall at bottom of sluice - Google Patents
Large-deformation seepage-proofing water stop structure of crown of deep overburden layer foundation cut-off wall at bottom of sluice Download PDFInfo
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- CN202787331U CN202787331U CN201220446427.0U CN201220446427U CN202787331U CN 202787331 U CN202787331 U CN 202787331U CN 201220446427 U CN201220446427 U CN 201220446427U CN 202787331 U CN202787331 U CN 202787331U
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- wall
- sluice
- water stop
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- impervious wall
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Abstract
The utility model relates to a large-deformation seepage-proofing water stop structure of the crown for a deep overburden layer foundation cut-off wall at the bottom of a sluice. Inorganic interface adhesive (10) is coated on contact surfaces of a formwork cast-in-place concrete cut-off wall (2) and a slotted hole placing cut-off wall (1); a plastic water stop sheet (6) is arranged on one side of the formwork cast-in-place concrete cut-off wall (2); a copper water stop sheet (7) is arranged on the other side of the formwork cast-in-place concrete cut-off wall (2); the compressive modulus of the elasticity of a polyethylene closed-cell foam board is 2.4 plus/minus 5 MPa; the height of the crown of the wall filled with the polyethylene closed-cell foam board is 30 cm; and the widths of cavities on two sides of the wall are 10 cm. Through the adoption of the water stop structure, the problem of connection safety between a sluice board and the crown of the cut-off wall when concrete on the sluice board on the sluice on the deep overburden layer foundation is deformed to be 6 cm in the vertical direction and 2 cm in the horizontal direction, but the crown of the cut-off wall is deformed slightly is mainly solved.
Description
Technical field
The utility model is the hydro-structure field, relates to the dark covering layer seepage prevention top large deformation impervious watertight structure in a kind of sluice bottom.
Background technology
The sluice of construction on dark covering layer (overburden cover is greater than 30m) basis, when Foundation Anti-seepage adopts concrete cut, because the effect of load in sluice construction and the running, the sluice basis will inevitably produce larger vertical and horizontal distortion, therefore must adopt the water-stopping structure that adapts to large deformation between impervious wall top and the sluice bottom, make the load of sluice not pass or pass to less as far as possible on the concrete cut top, bottom sluice, be connected safety in order to avoid affect impervious wall.This construction large deformation (vertically reach 6cm, level reaches 2cm) impervious watertight structure between the sluice plate on dark covering layer (overburden cover is greater than the 30m) basis and impervious wall push up does not have the experience that can directly adopt.
Summary of the invention
The purpose of this utility model is to overcome the weak point of above-mentioned existing background technology, research and develop out the dark covering layer seepage prevention top large deformation impervious watertight structure in a kind of sluice bottom, it mainly solves, and dark covering layer base water gate floor concrete occurs greatly vertically and horizontal distortion (vertically reaches 6cm, level reaches 2cm) and impervious wall top distortion is hour, gate floor and the safety problem that is connected between impervious wall pushes up.Require the connecting portion potential energy to adapt to large deformation, water-tight, and can not make the sluice Load Transfer to the impervious wall top, prevent the impervious wall failure.
The purpose of this utility model reaches by following measure: the dark covering layer seepage prevention top large deformation impervious watertight structure in sluice bottom, it is characterized in that scribbling inorganic interface glue at the contact surface that formwork erection cast in situ concrete impervious wall and slotted eye are built between the impervious wall, and build at formwork erection cast in situ concrete impervious wall and slotted eye and to have bar planting to be connected between the impervious wall, both sides at the formwork erection cast in situ concrete impervious wall are provided with sealing piece, adopt polyethylene closed-cell foam plate to fill in formwork erection cast in situ concrete impervious wall top and both sides cavity; Side at described formwork erection cast in situ concrete impervious wall is provided with the plastics sealing piece, opposite side at the formwork erection cast in situ concrete impervious wall is provided with copper water stop, the modulus of elasticity in comperssion of described polyethylene closed-cell foam plate is 2.4 ± 5MPa, the wall head space chamber height that described employing polyethylene closed-cell foam plate is filled is 30cm, and the both sides cavity width is 10cm.
In above-mentioned water-stopping structure, the middle part of described plastics sealing piece is positioned at polyethylene closed-cell foam plate, and an end of plastics sealing piece is positioned at the sluice plate concrete, and the other end of plastics sealing piece is positioned at the formwork erection cast in situ concrete impervious wall.
In above-mentioned water-stopping structure, the middle part of described copper water stop is filled with polyvinyl chloride (PVC) cement, and an end of copper water stop is fixed in the sluice plate concrete, and the other end of copper water stop is positioned at the formwork erection cast in situ concrete impervious wall.
In above-mentioned water-stopping structure, described bar planting comprises straight muscle and inverted U-shaped muscle.
In above-mentioned water-stopping structure, open sealing piece centered by the described plastics sealing piece, sealing piece thickness are 6mm, and sealing nose vertical section height is 10cm, and sealing nose width is 5cm,
In above-mentioned water-stopping structure, described copper water stop thickness is 1.2mm, and sealing nose vertical section height is 7.5cm, and sealing nose width is 4cm.
The special impervious watertight structure of the dark covering layer seepage prevention top large deformation in the utility model sluice bottom has designed the sealing piece of twice adaptation moderate finite deformation, and fill the polyethylene closed-cell foam plate deformation layer that adapts to moderate finite deformation on impervious wall top with the both sides design, simple in structure, technology is reliable, economical and practical, dark covering layer base water gate floor and seepage prevention top sealing connectivity problem have effectively been solved, can adapt to the vertically large and horizontal distortion in sluice bottom and (vertically reach 6cm, level reaches 2cm), guarantee the water seepage prevention effect of junction.
Prove that through numerical analysis and model testing the utility model impervious watertight structure technology is reasonable.
Description of drawings
Fig. 1 is the dark covering layer foundation wall top large deformation impervious watertight structure sectional drawing in the utility model sluice bottom.
Fig. 2 is plastics sealing piece schematic diagram.
Fig. 3 is the copper water stop schematic diagram.
Among the figure: 1. slotted eye concreting impervious wall, 2. formwork erection cast in situ concrete impervious wall, 3. sluice concrete floor, 4. concrete prefabricated board, 5. polyethylene closed-cell foam plate, 6. plastics sealing piece, 7. copper water stop, 8. polyvinyl chloride (PVC) cement, 9. sand－stone cushion, 10. interface adhesive glue, 11. bar planting (reinforcing bar), H. thickness, G. sealing nose vertical section height, K. sealing nose width.
The specific embodiment
Describe performance of the present utility model in detail below in conjunction with accompanying drawing, but they do not consist of to restriction of the present utility model, only for example, simultaneously by illustrating that advantage of the present utility model will become more clear and understands easily.
Consult accompanying drawing as can be known: the dark covering layer seepage prevention top large deformation impervious watertight structure in the utility model sluice bottom, it comprises sand－stone cushion 9, at sand－stone cushion 9 grooved hole concreting impervious walls 1, at slotted eye concreting impervious wall 1 top formwork erection cast in situ concrete impervious wall 2 is arranged, the contact surface of building between the impervious wall 1 at formwork erection cast in situ concrete impervious wall 2 and slotted eye has inorganic interface glue 10, having bar planting 12 to lay respectively at formwork erection cast in situ concrete impervious wall 2 builds in the impervious wall 1 with slotted eye, both sides at formwork erection cast in situ concrete impervious wall 2 are provided with sealing piece, adopt polyethylene closed-cell foam plate 5 to fill in formwork erection cast in situ concrete impervious wall 2 tops and both sides cavity; Side at described formwork erection cast in situ concrete impervious wall 2 is provided with plastics sealing piece 6, is provided with copper water stop 7 at the opposite side of formwork erection cast in situ concrete impervious wall 2.
The material of selecting in the utility model and material property thereof:
1) sealing piece is established in both sides, impervious wall top, be respectively plastics sealing piece and copper water stop, two kinds of sealing piece patterns all can adapt to vertically large and horizontal distortion, wherein, plastics sealing piece low price, economical and practical, copper water stop tensile strength is high, durable in use, safe and reliable, adopts the impervious watertight structure of two kinds of sealing piece combinations, taken into account economy and security reliability, the Main physical performance indications of two kinds of sealing pieces see Table respectively 1 with table 2;
Table 1 plastics sealing piece mechanics index of physics table
Table 2 copper water stop mechanics index of physics table
2) cavity is established in impervious wall top and both sides, and adopts polyethylene closed-cell foam plate to fill, and wall head space chamber height is 30cm, and the both sides cavity width is 10cm.
Polyethylene closed-cell foam plate is economical and practical, and modulus of elasticity in comperssion is little, is 2.4 ± 5MPa, can adapt to the requirement of impervious wall top and both sides cavity large deformation, and its Main physical performance indications are shown in Table 3.
Table 3 polyethylene closed-cell foam plate requires the physical index table
Open sealing piece centered by the plastics sealing piece, thickness are 6mm, and sealing nose vertical section height is 10cm, and sealing nose width is 5cm, as shown in Figure 2.Described copper water stop thickness is 1.2mm, and sealing nose vertical section height is 7.5cm, and sealing nose width is 4cm, as shown in Figure 3.
Claims (6)
1. the dark covering layer seepage prevention top large deformation impervious watertight structure in sluice bottom, it is characterized in that scribbling inorganic interface glue (10) at the contact surface that formwork erection cast in situ concrete impervious wall (2) and slotted eye are built between the impervious wall (1), and build at formwork erection cast in situ concrete impervious wall and slotted eye and to have bar planting to be connected (12) between the impervious wall, both sides at formwork erection cast in situ concrete impervious wall (2) are provided with sealing piece, adopt polyethylene closed-cell foam plate (5) to fill in formwork erection cast in situ concrete impervious wall (2) top and both sides cavity; Side at described formwork erection cast in situ concrete impervious wall (2) is provided with plastics sealing piece (6), opposite side at formwork erection cast in situ concrete impervious wall (2) is provided with copper water stop (7), the wall head space chamber height that described employing polyethylene closed-cell foam plate is filled is 30cm, and the both sides cavity width is 10cm.
2. the dark covering layer seepage prevention top large deformation impervious watertight structure in sluice according to claim 1 bottom, the middle part that it is characterized in that described plastics sealing piece (6) is positioned at polyethylene closed-cell foam plate (5), one end of plastics sealing piece (6) is positioned at sluice plate concrete (3), and the other end of plastics sealing piece (6) is fixed in the formwork erection cast in situ concrete impervious wall (2).
3. the dark covering layer seepage prevention top large deformation impervious watertight structure in sluice according to claim 1 bottom, the middle part that it is characterized in that described copper water stop (7) is filled with polyvinyl chloride (PVC) cement (8), one end of copper water stop (7) is fixed in the sluice plate concrete (3), and the other end of copper water stop (7) is fixed in the formwork erection cast in situ concrete impervious wall (2).
4. according to claim 2 or the dark covering layer seepage prevention top large deformation impervious watertight structure in 3 described sluice bottom, it is characterized in that described bar planting (12) comprises straight muscle and inverted U-shaped muscle.
5. the dark covering layer seepage prevention top large deformation impervious watertight structure in sluice according to claim 2 bottom, it is characterized in that open sealing piece centered by the described plastics sealing piece (6), sealing piece thickness (H) is 6mm, sealing nose vertical section height (G) is 10cm, and sealing nose width (K) is 5cm.
6. the dark covering layer seepage prevention top large deformation impervious watertight structure in sluice according to claim 3 bottom, it is characterized in that described copper water stop (7) thickness (H) is 1.2mm, sealing nose vertical section height (G) is 7.5cm, and sealing nose width (K) is 4cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220446427.0U CN202787331U (en) | 2012-09-04 | 2012-09-04 | Large-deformation seepage-proofing water stop structure of crown of deep overburden layer foundation cut-off wall at bottom of sluice |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220446427.0U CN202787331U (en) | 2012-09-04 | 2012-09-04 | Large-deformation seepage-proofing water stop structure of crown of deep overburden layer foundation cut-off wall at bottom of sluice |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202787331U true CN202787331U (en) | 2013-03-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201220446427.0U Expired - Lifetime CN202787331U (en) | 2012-09-04 | 2012-09-04 | Large-deformation seepage-proofing water stop structure of crown of deep overburden layer foundation cut-off wall at bottom of sluice |
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| CN (1) | CN202787331U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104805844A (en) * | 2014-01-24 | 2015-07-29 | 中国水电顾问集团北京勘测设计研究院有限公司 | Connection structure between steep slope bituminous concrete core-wall and concrete foundation |
-
2012
- 2012-09-04 CN CN201220446427.0U patent/CN202787331U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104805844A (en) * | 2014-01-24 | 2015-07-29 | 中国水电顾问集团北京勘测设计研究院有限公司 | Connection structure between steep slope bituminous concrete core-wall and concrete foundation |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130313 |