CN213571956U - Combined construction method pile supporting structure - Google Patents
Combined construction method pile supporting structure Download PDFInfo
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- CN213571956U CN213571956U CN202021678832.6U CN202021678832U CN213571956U CN 213571956 U CN213571956 U CN 213571956U CN 202021678832 U CN202021678832 U CN 202021678832U CN 213571956 U CN213571956 U CN 213571956U
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Abstract
A pile supporting structure of a combined construction method comprises sideline cement mixing piles/walls, vertical cement mixing piles/walls, H-shaped steel and channel steel, wherein the sideline cement mixing piles/walls are parallel to an excavation sideline, the cement mixing piles/walls vertical to the excavation sideline are constructed at certain intervals, the H-shaped steel and the channel steel are assembled and welded to form a Berea frame type combined structure, and the vertical cement mixing piles/walls are inserted. The utility model discloses have good intensity, rigidity and stability, have good shear capacity, can prevent effectively that the foundation ditch soil body is horizontal and vertical displacement too big, the phenomenon that the enclosure topples in to the foundation ditch has guaranteed the whole safety of foundation ditch, and the combined steel construction of above-mentioned interpolation is a recoverable, can have enough to meet the need the material, can effectively reduce construction cost, reduces engineering cost.
Description
Technical Field
The utility model relates to a pile supporting construction especially relates to an adopt pile supporting construction of novel combination worker method.
Background
The foundation pit support is a measure for temporarily supporting, reinforcing, protecting and controlling underground water adopted by the foundation pit in order to protect the construction of the underground structure of a building and ensure the safety of the surrounding environment of the foundation pit. At present, a cement-soil mixing pile/wall internal-inserted H-shaped steel support is a common support structure for deep foundation pit support, but if the conditions of deeper excavation of a foundation pit, higher soil pressure outside the pit, low shear strength, overload outside the pit and the like occur, the transverse or vertical displacement of a retaining wall is overlarge, the strength of a foundation pit support structure cannot meet the requirements of shear resistance and anti-overturning, and therefore the instability of the whole foundation pit and the safety of the foundation pit are critical.
In actual engineering, when the excavation depth of a foundation pit is not large, cast-in-situ bored piles or double rows of cast-in-situ bored piles are generally adopted. The engineering cost is high, and the shear resistance and the anti-overturning safety coefficient of the existing cement mixing pile/wall internal H-shaped steel support are not enough.
In the prior art, CN202010351832 discloses a composite slide-resistant pile and a construction method, including a slide-resistant pile body and a reinforcement body, the slide-resistant pile body is used for being arranged in a pile well, the pile well passes through a hard soil layer, a soft interlayer and a bottom hard soil layer, the slide-resistant pile body is of a rectangular structure, one end of the reinforcement body passes through the pile well and is embedded in the soft interlayer and the bottom hard soil layer, and the other end of the reinforcement body is fixedly connected with the slide-resistant pile body. The anti-slide pile body penetrates through the pile body of the soft interlayer and is externally provided with the reinforcement body, the sectional dimension of the anti-slide pile body in the soft interlayer is locally increased, the anti-slide pile with the rectangular structure has good bending resistance and shear strength, so that the anti-slide pile does not need to be provided with a plurality of anti-slide piles to enhance the bearing capacity in a difficult stratum, the length of the anti-slide pile is reduced, the length of a single pile does not need to be reduced by arranging other types of piles, the problem that the anti-slide pile in the difficult stratum cannot reach the designed pile length is solved, the support stability and the safety of the anti-slide pile in the difficult stratum are ensured, and the engineering investment is saved.
CN202010291503 discloses a foundation pit supporting process for sub-branch pipe network project construction, comprising the following steps: (1) manufacturing a steel sheet pile; (2) preparing a secondary branch pipe network; (3) measuring and paying off; (4) breaking the road surface; (5) constructing steel sheet piles; (6) excavating a foundation trench; (7) constructing a secondary branch pipe; (8) backfilling the foundation trench; (9) and (5) removing the steel sheet pile. The utility model discloses inherit the principle of high efficiency, economy, environmental protection in whole work progress, shortened construction period greatly, improved engineering efficiency, guaranteed the foundation ditch stability of inferior branch pipe network engineering, ensured constructor and equipment safety.
CN202010244512 discloses an impact protection pile slab united structure, include the structure that constitutes by a plurality of impact protection pile slab united units wholly, impact protection pile slab united unit includes upper portion impingement baffle and constitutes with a plurality of fender piles of upper portion impingement baffle sub-unit connection, be equipped with the construction joint between the upper portion impingement baffle of per two impact protection pile slab united units, the upper portion impingement baffle outside of the whole both sides of structure that a plurality of impact protection pile slab united units are constituteed is equipped with the structure seam, each upper portion impingement baffle at a plurality of impact protection pile slab united unit tops is connected through the board top even roof beam and is formed a whole, evenly arrange on the board top even roof beam and have a plurality of prestressed anchorage cable of passing board top even roof beam and anchoring in protection river course side slope mountain body basement rock in advance.
CN202010201812 discloses a foundation pit supporting device and method based on steel sheet pile combined vertical diagonal bracing, which relates to the technical field of building construction, and comprises steel sheet piles, wherein the steel sheet piles are arranged on one side of a basement bottom plate, and the upper parts of the steel sheet piles are provided with crown beams; one side of the crown beam is detachably provided with a vertical inclined strut, and the vertical inclined strut penetrates through the basement bottom plate and is connected with a vertical inclined strut support; the lower part of the vertical inclined strut support is fixedly provided with a support steel sheet pile, and the support steel sheet pile and the steel sheet pile are arranged correspondingly.
However, none of the above-mentioned documents discloses the construction of a substantially vertical cement-soil mixing pile/wall, nor the assembly and welding of H-shaped steel and channel steel to form a "bailey truss" -like composite structure.
SUMMERY OF THE UTILITY MODEL
Therefore, the utility model provides a novel combination worker method stake supporting construction and construction method thereof. The method is particularly suitable for the situation that the shear strength of the soil body at the bottom of a pit is low and the soil pressure outside the pit is high, and can effectively prevent the phenomena that the soil body of a foundation pit is overlarge in transverse and vertical displacement and the enclosure structure topples inwards.
For this, novel combination worker method stake supporting construction, including the support system of cement soil wall, be on a parallel with the sideline cement soil pile/wall construction of excavation sideline and finish, according to the perpendicular cement soil pile/wall of certain interval construction perpendicular to excavation sideline, H shaped steel is assembled with the channel-section steel and is welded and constitute a similar beiLei frame type integrated configuration, inserts a supporting construction that the cement soil wall of the perpendicular to excavation sideline that the construction finishes formed in the time of stipulation forms. The supporting system is a combined steel structure inserted in the cement-soil wall.
The specific implementation mode is as follows:
a pile supporting structure of a combined construction method comprises sideline cement mixing piles/walls, vertical cement mixing piles/walls, H-shaped steel and channel steel, wherein the sideline cement mixing piles/walls are parallel to an excavation sideline, the vertical cement mixing piles/walls perpendicular to the excavation sideline are constructed at certain intervals, the H-shaped steel and the channel steel are assembled and welded to form a Berea frame type combined structure, and the vertical cement mixing piles/walls are inserted.
Preferably, the sideline cement-soil mixing pile/wall and the vertical cement-soil mixing pile/wall are foundation pit supporting piles/walls.
Preferably, the sideline cement mixing pile/wall and the vertical cement mixing pile/wall have the same or different structures.
Preferably, the H-shaped steel is connected with the channel steel in a welding mode.
Preferably, the sideline cement mixing pile/wall and the vertical cement mixing pile/wall are internally inserted with a combined steel structure.
The utility model discloses a novel construction method of combination worker method stake supporting construction, its characteristics are that this supporting construction is under construction according to following step:
firstly, measuring and setting out after leveling the field, and constructing a cement soil pile/wall parallel to the excavation side line of the foundation pit according to design requirements and relevant specifications of foundation pit supporting construction, and if the cement soil pile/wall is a triaxial mixing pile, constructing in a form of sleeving a hole. And then constructing cement-soil piles/walls vertical to the excavation sidelines at certain intervals, and welding a combined steel structure which is formed by welding H-shaped steel and channel steel and is similar to a 'bailey truss' form in a construction site.
Secondly, after the cement soil wall is constructed according to relevant specifications and design rules, the H-shaped steel and the channel steel are welded to form a combined steel structure similar to a Bailey truss within a specified time according to requirements, the combined steel structure is hung and sunk to a certain depth in the cement soil wall perpendicular to the side line of the foundation pit, and the distance between the adjacent combined steel structures is consistent with the distance between the cement soil piles/walls perpendicular to the side line of the excavation.
And thirdly, carrying out subsequent construction of inserting the combined steel structure in the cement-soil wall according to the procedures.
Fourthly, excavating the foundation pit and constructing the underground structure and the force transmission belt.
After the underground structure is constructed, the combined steel structure is pulled out, the hole is timely grouted and backfilled, and gaps between the enclosing structure and the basement outer wall are backfilled by high-quality soil.
The supporting structure has good strength, rigidity and stability, good shear resistance, can effectively prevent overlarge horizontal and vertical displacement of a foundation pit soil body and the phenomenon that the enclosure body overturns towards the inside of the foundation pit, ensures the overall safety of the foundation pit, is a recyclable and turnover material, can effectively reduce the construction cost and the engineering cost
Drawings
Fig. 1 is a front view of a pile support structure according to the composite construction method of the present invention;
fig. 2 is a side view of a pile support structure of the combined construction method of fig. 1;
fig. 3 is a schematic view of the combined steel structure inserted into the pile of the combined construction method of the present invention;
fig. 4 is a schematic diagram of the structure of the present invention.
The reference numbers are as follows:
1-sideline cement soil mixing pile/wall, 2-vertical cement soil mixing pile/wall, 3-H section steel, 4-channel steel, 5-force transmission belt and 6-underground structure
Detailed Description
The present application is described in further detail below with reference to the accompanying drawings by way of specific embodiments.
In the construction of a certain venue, pile supports are needed to protect a building foundation. However, the traditional pile supporting method is not allowed in construction time, actual construction space is small, and quality of traditional pile supporting cannot be guaranteed. Consequently, decide to adopt the utility model discloses novel combination worker method stake supporting construction.
Referring to the attached drawings 1-2, a novel pile supporting structure of a combined construction method comprises cement soil mixing piles/ walls 1 and 2, H-shaped steel 3 and a supporting system of channel steel 4, wherein the H-shaped steel 3 and the channel steel 4 are spliced and welded to form a combined steel structure similar to a Bailey truss type, namely the channel steel 4 is transversely lapped on the H-shaped steel 3, the channel steel 4 forms a plurality of branches of the H-shaped steel 3, the H-shaped steel 3 is provided with a plurality of side-by-side parts, and the channel steel 4 and the H-shaped steel 3 are overlapped with each other to form a net structure used in engineering. The cement soil piles/ walls 1 and 2 are foundation pit supporting piles/walls, and the H-shaped steel 3 is connected with the channel steel 4 in a welding mode. The supporting system also comprises an inserted combined steel structure of the cement mixing piles/ walls 1 and 2, as shown in figure 3.
The utility model discloses carry out foundation ditch enclosure combination support construction according to following step:
firstly, measuring and setting out after leveling the field, and constructing a cement soil pile/wall 1 parallel to the excavation side line of the foundation pit according to design requirements and relevant specifications of foundation pit supporting construction, wherein if the cement soil pile/wall 1 is a triaxial mixing pile, construction is carried out in a form of sleeving one hole. And then constructing cement soil piles/walls 2 vertical to the excavation sidelines at certain intervals, and welding a combined steel structure in a similar 'bailey truss' form formed by welding H-shaped steel 3 and channel steel 4 in a construction site.
Secondly, after the cement soil walls 1 and 2 are constructed according to relevant specifications and design rules, the H-shaped steel 3 and the channel steel 4 are welded to form a combined steel structure similar to a 'bailey truss' form, the combined steel structure is hung and lowered to a certain depth in the cement soil walls 2 perpendicular to the side line of the foundation pit within a specified time according to requirements, and the distance between the adjacent combined steel structures is consistent with the distance between the cement soil piles/walls 2 perpendicular to the side line of the excavation.
And thirdly, carrying out subsequent construction of inserting the combined steel structure in the cement-soil wall according to the procedures.
Fourthly, excavating the foundation pit and constructing the underground structure 6 and the force transmission belt 5.
And fifthly, after the underground structure 6 is constructed, pulling out the combined steel structure, grouting and backfilling the hole in time, and backfilling a gap between the enclosure structure and the outer wall of the basement by using high-quality soil. See fig. 4.
The above description is only for the preferred embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered within the protection scope of the present invention.
Claims (6)
1. The utility model provides a combination worker method stake supporting construction, includes sideline soil cement mixing pile/wall (1), perpendicular soil cement mixing pile/wall (2), H shaped steel (3), channel-section steel (4), its characterized in that: the sideline soil cement mixing pile/wall (1) is parallel to the excavation sideline, the vertical soil cement mixing pile/wall (2) perpendicular to the excavation sideline is constructed at certain intervals, the H-shaped steel (3) and the channel steel (4) are assembled and welded to form a Bailey truss type combined structure, and the vertical soil cement mixing pile/wall (2) is inserted.
2. A combined construction method pile support structure as claimed in claim 1, wherein: the sideline cement-soil mixing pile/wall (1) and the vertical cement-soil mixing pile/wall (2) are foundation pit supporting piles/walls.
3. A combined construction method pile support structure as claimed in claim 2, wherein: the sideline cement mixing pile/wall (1) and the vertical cement mixing pile/wall (2) have the same structure.
4. A combined construction method pile support structure as claimed in claim 2, wherein: the sideline cement mixing pile/wall (1) and the vertical cement mixing pile/wall (2) are different in structure.
5. A combined construction method pile support structure as claimed in any one of claims 1 to 4, wherein: the H-shaped steel (3) is connected with the channel steel (4) in a welding mode.
6. A combined construction method pile support structure as set forth in claim 5, wherein: and a combined steel structure is inserted into the sideline cement mixing pile/wall (1) and the vertical cement mixing pile/wall (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021678832.6U CN213571956U (en) | 2020-08-13 | 2020-08-13 | Combined construction method pile supporting structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021678832.6U CN213571956U (en) | 2020-08-13 | 2020-08-13 | Combined construction method pile supporting structure |
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| CN213571956U true CN213571956U (en) | 2021-06-29 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114855818A (en) * | 2022-05-23 | 2022-08-05 | 中铁二十局集团第一工程有限公司 | High-pressure rotary spraying reinforcement method for double-row narrow-distance ground wall |
-
2020
- 2020-08-13 CN CN202021678832.6U patent/CN213571956U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114855818A (en) * | 2022-05-23 | 2022-08-05 | 中铁二十局集团第一工程有限公司 | High-pressure rotary spraying reinforcement method for double-row narrow-distance ground wall |
| CN114855818B (en) * | 2022-05-23 | 2023-09-12 | 中铁二十局集团第一工程有限公司 | Double-row narrow-distance ground wall high-pressure rotary spraying reinforcement method |
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