CN211816193U - Anchor draws formula steel sheet pile supporting construction - Google Patents
Anchor draws formula steel sheet pile supporting construction Download PDFInfo
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- CN211816193U CN211816193U CN202020259270.5U CN202020259270U CN211816193U CN 211816193 U CN211816193 U CN 211816193U CN 202020259270 U CN202020259270 U CN 202020259270U CN 211816193 U CN211816193 U CN 211816193U
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Abstract
The utility model relates to an anchor-pull type steel sheet pile supporting structure; the technical scheme of its solution includes the foundation ditch, the inboard equipartition of foundation ditch has the steel sheet pile of a plurality of vertical cartridges in the foundation ditch bottom, paste tightly each other between the adjacent steel sheet pile, steel sheet pile pastes tightly with the foundation ditch lateral wall, the top of a plurality of steel sheet piles is equipped with one with the fixed hat roof beam of a plurality of steel sheet piles, interval arrangement and connect a plurality of steel sheet piles into a holistic waist rail about a plurality of steel sheet piles's inboard is equipped with the multiunit, the outside interval of foundation ditch is dug and is equipped with the slot parallel with the foundation ditch border, the bottom of slot is as for the below of waist rail, be equipped with a plurality of anchor blocks with the steel sheet pile one-to-one in the slot, be equipped with a plurality of and waist rail one-to-ones and horizontally anchor rope on every steel sheet pile, the anchor rope penetrates through the steel sheet.
Description
Technical Field
The invention relates to the technical field of structural engineering, in particular to an anchor-pull type steel sheet pile supporting structure.
Background
The method has the advantages that the regional distribution is wide in China, the geological structure is complex and changeable, remarkable market demands are brought by the large investment of the transportation industry along with the construction of high-rise buildings, the reconstruction of river basins and the large investment of the transportation industry, and the steel sheet piles have wide development space due to the unique advantages of the engineering of constructing foundation pits, constructing bridge cofferdams, laying large pipelines, protecting banks and the like.
At present, in a foundation pit supporting engineering, common supporting structure types include a retaining structure, a soil nail wall, a gravity cement soil wall, a slope, and the like, a steel sheet pile is used as a common retaining structure, the supporting forms include a cantilever type, a supporting type and an anchoring type, and the anchoring type steel sheet pile supporting and retaining structure comprises a steel sheet pile used as a soil retaining structure and an anchor rope, a waist beam or a crown beam used as an anchoring and pulling structure, and the like.
However, the anchor cable is not suitable for soft soil layers and high-water-level gravel soil and sandy soil layers, and sometimes even a steel strand anchor cable is adopted, because the driving depth of the anchor cable is limited, the bonding strength of an anchoring body and the soil layers is limited, the strength of the steel strand cable cannot be fully exerted, the ultimate uplift bearing capacity of the anchor cable cannot meet the requirement of axial tension of the anchor cable, if an anchor block is arranged at the end of the anchor cable, the uplift bearing capacity is mainly provided by the anchoring force of the anchor block, and the uplift bearing capacity of the anchor structure can be greatly enhanced.
Because the utility model discloses steel sheet pile resistance to plucking bearing capacity's stability and anchoring system's long-life also are suitable for as permanent supporting construction to possess wide prospect, if: wharfs, unloading yards, embankment revetments, retaining walls, breakwaters, jetties, docks, gates, and the like.
SUMMERY OF THE UTILITY MODEL
Aiming at the situation, in order to overcome the defects of the prior art, the invention provides an anchor-pull type steel sheet pile supporting structure, which effectively solves the problems that the pulling resistance of the steel sheet pile anchor-pull structure is insufficient, and simultaneously an anchor rope cannot be anchored in a soft soil layer, high-water-level gravel soil and a sandy soil layer.
Its technical scheme who solves the problem includes the foundation ditch, the inboard equipartition of foundation ditch has the steel sheet pile of a plurality of vertical cartridges in the foundation ditch bottom, paste tightly each other between the adjacent steel sheet pile, steel sheet pile pastes tightly with the foundation ditch lateral wall, the top of a plurality of steel sheet piles is equipped with one and is fixed the hat roof beam with a plurality of steel sheet piles, interval arrangement about a plurality of steel sheet piles's inboard is equipped with the multiunit and connects into a holistic waist rail with a plurality of steel sheet piles, the outside interval of foundation ditch is dug and is equipped with the slot parallel with the foundation ditch border, the bottom of slot is as for the below of waist rail, be equipped with a plurality of anchor blocks with the steel sheet pile one-to-one in the slot, be equipped with a plurality of and waist rail one-to-one and horizontally anchor rope on every steel sheet pile, the anchor rope penetrates through.
The invention has novel conception, ingenious structure and strong practicability, the steel sheet pile supporting technology adopts the anchor rope and the anchor block to jointly form a steel sheet pile supporting system, utilizes the gravity of the anchor block, the friction force of backfill soil and the plasticity characteristic of the backfill soil, effectively solves the problem of insufficient uplift resistance of the Larsen steel sheet pile anchor structure, controls and reduces the deformation of the steel sheet pile, improves the stability of the supporting structure, solves the problem that the anchor rope cannot be anchored in a soft soil layer and a high-water-level gravel soil layer and a sand soil layer, and improves the service life of the supporting and anchoring system.
Drawings
Fig. 1 is a plan view of the present invention when the crown beam is not installed.
Fig. 2 is a front sectional view of the present invention.
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
As shown in fig. 1 to 2, the foundation pit comprises a foundation pit 1, a plurality of steel sheet piles 2 vertically inserted into the bottom of the foundation pit 1 are uniformly distributed on the inner side of the foundation pit 1, adjacent steel sheet piles 2 are tightly attached to each other, the steel sheet piles 2 are tightly attached to the side wall of the foundation pit 1, a crown beam 3 for fixing the steel sheet piles 2 is arranged on the top of the steel sheet piles 2, a plurality of groups of wales 4 which are arranged at intervals up and down are arranged on the inner side of the steel sheet piles 2 and connect the steel sheet piles 2 into a whole, grooves 5 which are parallel to the edge of the foundation pit 1 are dug on the outer side of the foundation pit 1 at intervals, the bottom of each groove 5 is arranged below the wale 4, a plurality of anchor blocks 6 which are in one-to-one correspondence with the steel sheet piles 2 are arranged in the grooves 5, a plurality of anchor cables 7 which are in one-to-one correspondence with the, and a soil layer between the foundation pit 1 and the groove 5 is fixed on the corresponding anchor block 6.
In order to fix the anchor cable 7 on the anchor block 6, the anchor cable 7 is a steel strand anchor cable, two ends of the anchor cable 7 are fixed by anchors respectively, and a plurality of steel strands in the steel strand anchor cable correspond to holes in the anchors one by one.
In order to ensure that the soil layer between the foundation pit 1 and the groove 5 can be prevented from collapsing after being stressed when the anchor cable 6 is tensioned, the groove 5 is arranged on the outer side of a soil body landslide line of the foundation pit 1.
In order to avoid the interval between the adjacent steel sheet piles 2, the sections of the steel sheet piles 2 are U-shaped and are buckled with each other.
The utility model discloses a concrete working process:
the construction method comprises the steps of measuring and setting out according to construction drawings, installing positioning piles and positioning frames, inserting and driving steel sheet piles 2, excavating a groove 5 for placing anchor blocks after the construction is finished, placing anchor blocks 6 according to the quantity and the positions of the steel sheet piles 2, excavating the depth of a foundation pit 1 to the anchor blocks 6, installing steel sheet piles 2, a top beam 3, a waist beam 4 and the like, driving horizontal anchor cables 7 to the position of the groove 5 into the soil wall, installing and anchoring the anchor blocks 6 at the position of the groove 5, carrying out prestress tensioning, controlling the displacement of the steel sheet piles 2, backfilling the soil 5 in the groove 5 after the construction is finished, filling and compacting in layers, and continuously excavating the foundation pit 1.
And carrying out displacement detection on the steel sheet pile 2 in the construction process so as to adjust the displacement of the steel sheet pile 2 at any time, and stretching for many times according to actual conditions.
Compared with the traditional equipment, the device has the following advantages:
the invention has novel conception, ingenious structure and strong practicability, the steel sheet pile supporting technology adopts the anchor rope and the anchor block to jointly form a steel sheet pile supporting system, utilizes the gravity of the anchor block, the friction force of backfill soil and the plasticity characteristic of the backfill soil, effectively solves the problem of insufficient uplift resistance of the Larsen steel sheet pile anchor structure, controls and reduces the deformation of the steel sheet pile, improves the stability of the supporting structure, solves the problem that the anchor rope cannot be anchored in a soft soil layer and a high-water-level gravel soil layer and a sand soil layer, and improves the service life of the supporting and anchoring system.
Claims (4)
1. An anchor-pull type steel sheet pile supporting structure comprises a foundation pit (1), wherein a plurality of steel sheet piles (2) vertically inserted at the bottom of the foundation pit (1) are uniformly distributed on the inner side of the foundation pit (1), and adjacent steel sheet piles (2) are tightly attached to each other, the anchor-pull type steel sheet pile supporting structure is characterized in that the steel sheet piles (2) are tightly attached to the side wall of the foundation pit (1), a crown beam (3) for fixing the steel sheet piles (2) is arranged at the top of the steel sheet piles (2), a plurality of groups of anchor blocks (6) which are vertically arranged at intervals and connect the steel sheet piles (2) into a whole are arranged on the inner side of the steel sheet piles (2), grooves (5) which are parallel to the edge of the foundation pit (1) are dug on the outer side of the foundation pit (1) at intervals, the bottoms of the grooves (5) are arranged below the waist beam (4), a plurality of anchor blocks (6) which correspond to the steel sheet piles (2) one by one, and are arranged in each other, a plurality of anchor cables (, the anchor cable (7) penetrates through the steel sheet pile (2), the soil layer between the foundation pit (1) and the groove (5) from the waist beam (4) and is fixed on the corresponding anchor block (6).
2. The anchor-pull type steel sheet pile supporting structure as claimed in claim 1, wherein the anchor cable (7) is a steel strand anchor cable, two ends of the anchor cable (7) are respectively fixed by anchors, and a plurality of steel strands in the steel strand anchor cable correspond to the holes in the anchors one by one.
3. The anchor-pull type steel sheet pile supporting structure according to claim 1, wherein the groove (5) is arranged outside a soil body slope sliding line of the foundation pit (1).
4. The anchor-pull type steel sheet pile supporting structure according to claim 1, wherein the steel sheet piles (2) have a U-shaped cross section and are fastened to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020259270.5U CN211816193U (en) | 2020-03-05 | 2020-03-05 | Anchor draws formula steel sheet pile supporting construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020259270.5U CN211816193U (en) | 2020-03-05 | 2020-03-05 | Anchor draws formula steel sheet pile supporting construction |
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| Publication Number | Publication Date |
|---|---|
| CN211816193U true CN211816193U (en) | 2020-10-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020259270.5U Active CN211816193U (en) | 2020-03-05 | 2020-03-05 | Anchor draws formula steel sheet pile supporting construction |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112431209A (en) * | 2020-11-27 | 2021-03-02 | 上海金鹿建设(集团)有限公司 | Foundation pit supporting protection structure |
| CN113123346A (en) * | 2021-04-16 | 2021-07-16 | 中国建筑第八工程局有限公司 | Fabricated anchor pulling node between support pile and wall section steel and construction method thereof |
-
2020
- 2020-03-05 CN CN202020259270.5U patent/CN211816193U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112431209A (en) * | 2020-11-27 | 2021-03-02 | 上海金鹿建设(集团)有限公司 | Foundation pit supporting protection structure |
| CN112431209B (en) * | 2020-11-27 | 2021-12-07 | 上海金鹿建设(集团)有限公司 | Foundation pit supporting protection structure |
| CN113123346A (en) * | 2021-04-16 | 2021-07-16 | 中国建筑第八工程局有限公司 | Fabricated anchor pulling node between support pile and wall section steel and construction method thereof |
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