CN214460554U - Cut-off wall construction platform - Google Patents
Cut-off wall construction platform Download PDFInfo
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- CN214460554U CN214460554U CN202021956078.8U CN202021956078U CN214460554U CN 214460554 U CN214460554 U CN 214460554U CN 202021956078 U CN202021956078 U CN 202021956078U CN 214460554 U CN214460554 U CN 214460554U
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Abstract
The utility model provides a cut-off wall construction platform, including leading the wall, it arranges along the outer facade extending direction of cut-off wall to lead the wall, along the direction from bottom to top, basic unit, tamp layer, rubble bed course and supporting strip have been laid in proper order on leading the wall, the supporting strip upper berth is equipped with the track, the track is used for supporting the construction machines and removes. Adopt the technical scheme of the utility model, through laying the rubble bed course on leading the wall, the pressure that makes the construction equipment produce is evenly transmitted for leading the wall, makes the track keep steady state to establish the basis for improving construction quality, in addition, the rubble bed course still has played the cushioning effect to the pressure that the construction equipment produced, thereby guarantees the construction equipment along rail displacement, has guaranteed operation workman's construction safety.
Description
Technical Field
The utility model belongs to the technical field of building engineering, especially, relate to a cut-off wall construction platform.
Background
The impervious wall is a continuous underground wall, which is constructed on the ground, uses a special trenching machine, and is constructed section by forming holes or trenches and then backfilling wall materials under the condition that slurry is called stabilizing liquid, thixotropic slurry and stabilizing liquid to form the continuous wall with certain seepage-proofing capability underground finally.
The concrete impervious wall is an underground continuous wall which is built by continuously forming holes in a loose and permeable foundation or a dam body of an earth-rock dam by using slurry to fix the wall and pouring concrete or backfilling other impervious materials under the slurry and has the function of seepage prevention.
The thickness of the water conservancy and hydropower engineering impervious wall is only 60 cm-100 cm generally, and is quite thin compared with a dam. However, because the wall body is deeply buried in the foundation, the horizontal load is mainly born by the foundation behind the wall, which is equivalent to a thin plate on an elastic foundation, so that the ratio of the elastic modulus to the strength of the wall body material is reduced, and the stress state of the wall body is favorably improved. Although the dam foundation and the dam impervious wall belong to the category of underground continuous walls, the working conditions of the dam foundation and the dam impervious wall are different from those of the underground continuous walls which generally play roles in bearing and retaining soil, so the requirements on wall materials are also different. The bottom of the impervious wall is generally required to be embedded into bedrock or a impervious bed to a certain depth (0.5 m-1.0 m), and the top of the impervious wall is required to be connected with an impervious facility of a dam body.
The types of the concrete impervious walls of the hydraulic and hydroelectric engineering can be classified according to the structural form, the material and the arrangement mode of the wall body and the grooving method:
dividing according to the structural form of the wall body: the method can be divided into three types, namely a pile-column type impervious wall, a slotted hole type impervious wall and a mixed type impervious wall. The groove-hole type impervious wall is more widely used.
According to the wall material: mainly comprises a common concrete impervious wall, a reinforced concrete impervious wall, a clay concrete impervious wall, a plastic concrete impervious wall and a mortar impervious wall.
According to the arrangement mode: can be divided into a built-in type impervious wall, a suspended type impervious wall and a combined type impervious wall.
Dividing the method into the following steps: mainly comprises a drilling and digging trenching impervious wall, a water jetting trenching impervious wall, a chain bucket trenching impervious wall and a sawing trench impervious wall.
The existing methods according to the grooving process comprise drilling and splitting method, reverse circulation and grab bucket method construction, and all have the problems of easy collapse of slotted holes, serious slurry leakage and low work efficiency. The drilling and splitting method as commonly used has the following problems: the guide wall (1) is deformed and damaged, the wall of the groove is easy to collapse, slurry is easy to leak, holes are inclined, a drill is easy to block and the like, so that a special construction platform for the construction of the anti-seepage wall is urgently needed to be developed, and construction operation is convenient for operators.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a cut-off wall construction platform.
The utility model discloses a following technical scheme can realize.
The utility model provides a cut-off wall construction platform, including leading the wall, it arranges along the outer facade extending direction of cut-off wall to lead the wall, along the direction from bottom to top, basic unit, tamp layer, rubble bed course and supporting strip have been laid in proper order on leading the wall, the supporting strip upper berth is equipped with the track, the track is used for supporting the construction machines and removes.
The thickness of the gravel cushion layer is not less than 20 cm.
The construction machine is a drilling machine.
The supporting strips are made of sleepers.
The external dimension of the sleeper is as follows: length × width × height is 450cm × 18cm × 15 cm.
The foundation layer is formed by pouring concrete.
The concrete strength grade is not lower than C25.
The filling layer is formed by filling soil in the area adjacent to the impervious wall onto the foundation layer.
The whole guide wall is in an L shape.
The beneficial effects of the utility model reside in that: adopt the technical scheme of the utility model, through laying the rubble bed course on leading the wall, the pressure that makes the construction equipment produce is evenly transmitted for leading the wall, makes the track keep steady state to establish the basis for improving construction quality, in addition, the rubble bed course still has played the cushioning effect to the pressure that the construction equipment produced, thereby guarantees the construction equipment along rail displacement, has guaranteed operation workman's construction safety.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1-guide wall, 2-foundation layer, 3-filling layer, 4-gravel cushion layer, 5-supporting strip and 6-track.
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.
As shown in fig. 1, the utility model provides a cut-off wall construction platform, including leading wall 1, lead wall 1 and arrange along the outer facade extending direction of cut-off wall, along the direction from bottom to top, having laid base course 2, tamp layer 3, rubble bed course 4 and supporting strip 5 on leading wall 1 in proper order, supporting strip 5 upper berth is equipped with track 6, and track 6 is used for supporting the construction machines and removes.
Further, the thickness of the crushed stone pad 4 is preferably not less than 20 cm. The construction machine is a drilling machine and further comprises a hydraulic grab bucket. The supporting strips 5 are made of sleepers. The external dimension of the sleeper is as follows: length × width × height is 450cm × 18cm × 15 cm. The foundation layer 2 is formed by pouring concrete. The concrete strength grade is not lower than C25. The filling layer 3 is formed by filling soil in the area adjacent to the diaphragm wall onto the foundation layer 2. The thickness of the filling layer 3 is not less than 1500 mm. The guide wall 1 is in an L shape as a whole.
Adopt the technical scheme of the utility model, through laying the rubble bed course on leading the wall, the pressure that makes the construction equipment produce is evenly transmitted for leading the wall, makes the track keep steady state to establish the basis for improving construction quality, in addition, the rubble bed course still has played the cushioning effect to the pressure that the construction equipment produced, thereby guarantees the construction equipment along rail displacement, has guaranteed operation workman's construction safety.
Claims (9)
1. The utility model provides a cut-off wall construction platform which characterized in that: including leading wall (1), lead wall (1) and arrange along impervious wall outer facade extending direction, along direction from bottom to top, it has base course (2), tamp layer (3), rubble bed course (4) and supporting strip (5) to lay in proper order on wall (1) to lead, supporting strip (5) upper berth is equipped with track (6), track (6) are used for supporting the construction machines and move.
2. The diaphragm wall construction platform of claim 1, wherein: the thickness of the gravel cushion layer (4) is not less than 20 cm.
3. The diaphragm wall construction platform of claim 1, wherein: the construction machine is a drilling machine.
4. The diaphragm wall construction platform of claim 1, wherein: the supporting strips (5) are made of sleepers.
5. The diaphragm wall construction platform of claim 4, wherein: the external dimension of the sleeper is as follows: length × width × height is 450cm × 18cm × 15 cm.
6. The diaphragm wall construction platform of claim 1, wherein: the foundation layer (2) is formed by pouring concrete.
7. The diaphragm wall construction platform of claim 6, wherein: the concrete strength grade is not lower than C25.
8. The diaphragm wall construction platform of claim 1, wherein: the filling layer (3) is formed by filling soil in the area adjacent to the impervious wall onto the foundation layer (2).
9. The diaphragm wall construction platform of claim 1, wherein: the whole guide wall (1) is L-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021956078.8U CN214460554U (en) | 2020-09-09 | 2020-09-09 | Cut-off wall construction platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021956078.8U CN214460554U (en) | 2020-09-09 | 2020-09-09 | Cut-off wall construction platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214460554U true CN214460554U (en) | 2021-10-22 |
Family
ID=78106983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021956078.8U Active CN214460554U (en) | 2020-09-09 | 2020-09-09 | Cut-off wall construction platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214460554U (en) |
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2020
- 2020-09-09 CN CN202021956078.8U patent/CN214460554U/en active Active
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