CN212427117U - Foundation ditch stagnant water supporting construction - Google Patents
Foundation ditch stagnant water supporting construction Download PDFInfo
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- CN212427117U CN212427117U CN202020818019.8U CN202020818019U CN212427117U CN 212427117 U CN212427117 U CN 212427117U CN 202020818019 U CN202020818019 U CN 202020818019U CN 212427117 U CN212427117 U CN 212427117U
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Abstract
The utility model relates to the technical field of foundation pit support, and discloses a foundation pit water stop support structure, which comprises a water stop layer, a first steel sheet pile layer and a second steel sheet pile layer which are respectively arranged on two side surfaces of the water stop layer, and tie rods of which two ends are respectively connected on the first steel sheet pile layer and the second steel sheet pile layer; the first steel sheet pile layer is parallel to the second steel sheet pile layer, and the first steel sheet pile layer is attached to the side wall of the foundation pit. The utility model discloses collect stagnant water and strut structure as an organic whole, have that construction cost is low, shorten construction cycle's advantage.
Description
Technical Field
The utility model belongs to the technical field of the technique of excavation supporting and specifically relates to a foundation ditch stagnant water supporting construction is related to.
Background
The foundation pit is a soil pit excavated at the design position of the foundation according to the elevation of the foundation and the plane size of the foundation. The foundation pit supporting engineering needs to ensure the safety of the whole supporting structure in construction and also needs to control the deformation of the supporting structure and the surrounding soil body so as to ensure the safety of the surrounding environment. Before excavation, an excavation scheme is determined according to geological and hydrological data and the conditions of buildings nearby the site, and waterproof drainage work is performed. Engineering geological parameters of a soft soil area are generally low, if the depth of a foundation pit to be dug is not large, an existing mode is that an inner support mode is usually adopted for supporting, and the inner support structure has the advantages of being good in stress performance, large in rigidity and reliable in safety. The middle of the inner support is required to be provided with a stand column, the inner support structure generally adopts a structure of the stand column and a support beam, a plurality of stand columns which are arranged at intervals are erected in a foundation pit, and a horizontal support beam is connected between the stand columns. Various connections are made between the upright posts and the supporting beams to ensure the stability of the support. The supporting mode has high economic cost, complex structure and longer construction period.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims at providing a foundation ditch stagnant water supporting construction collects the stagnant water and struts structure as an organic whole, has that construction cost is low, shortens construction cycle's advantage.
The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:
a foundation pit water-stopping supporting structure comprises a water-stopping layer, a first steel sheet pile layer and a second steel sheet pile layer which are respectively arranged on two side surfaces of the water-stopping layer, and tie rods of which two ends are respectively connected to the first steel sheet pile layer and the second steel sheet pile layer;
the first steel sheet pile layer is parallel to the second steel sheet pile layer, and the first steel sheet pile layer is attached to the side wall of the foundation pit.
By adopting the technical scheme, the water-stopping supporting structure is arranged into three layers, and comprises a first steel sheet pile layer, a middle water-stopping layer and a second steel sheet pile layer, wherein the water-stopping layer is clamped between the first steel sheet pile layer and the second steel sheet pile layer, the first steel sheet pile layer and the second steel sheet pile layer can also play a supporting role at the same time, the water-stopping layer can play a water-stopping role, two ends of a tie rod are respectively arranged on the first steel sheet pile layer and the second steel sheet pile layer, and the three layers are matched and arranged to integrate water stopping and supporting, so that the water-stopping supporting structure has better stability; because first steel sheet pile layer and second steel sheet pile layer can be dismantled and retrieve and recycle, have reduced economic cost. The construction steps and cost are simplified, and the construction period is shortened.
The present invention may be further configured in a preferred embodiment as: and the lower end of the first steel sheet pile layer is inserted into a pit body soil layer of the foundation pit.
Through adopting above-mentioned technical scheme, the lower extreme on first steel sheet pile layer inserts in the pit body soil layer of foundation ditch, and first steel sheet pile layer can be stable paste on the lateral wall of foundation ditch, guarantees the stability of strutting.
The present invention may be further configured in a preferred embodiment as: and the lower end of the second steel sheet pile layer is inserted into a pit body soil layer of the foundation pit.
Through adopting above-mentioned technical scheme, the lower extreme on second steel sheet pile layer inserts in the pit body soil layer of foundation ditch, and connection that can be stable is in the foundation ditch, and with the cooperation of first steel sheet pile layer, guarantees foundation ditch support's stability.
The present invention may be further configured in a preferred embodiment as: the water stopping layer is set into a stirring cement soil pile.
Through adopting above-mentioned technical scheme, before first steel sheet pile layer and second steel sheet pile layer are squeezed into the ground, prepare stirring cement soil pile earlier, stirring cement soil pile utilizes cement as the curing agent, through purpose-built stirring machine, in the ground depths with weak soil and curing agent forced stirring, utilize produced a series of physicochemical reaction between curing agent and the weak soil, make the weak soil indulge into the high-quality ground that has wholeness, water stability and certain intensity, the grout of impressing in the weak soil is forced to mix with surrounding weak soil with the stirring vane of gyration and is formed the mud reinforcement body, better stagnant water effect has.
The present invention may be further configured in a preferred embodiment as: and a first waist beam is arranged on the first steel sheet pile layer, is arranged on the upper part close to the first steel sheet pile layer and is parallel to the bottom surface of the foundation pit.
Through adopting above-mentioned technical scheme, send out the slope easily in first steel sheet pile layer near the position of upper end, the first waist rail parallel with the foundation ditch bottom surface that sets up on the position that is close to upper portion on the first steel sheet pile layer can couple together first steel sheet pile layer, and then increases the stability on first steel sheet pile layer, prevents the slope of first steel sheet pile layer.
The present invention may be further configured in a preferred embodiment as: and a second waist beam is arranged on the second steel sheet pile layer, is arranged on the upper part of the second steel sheet pile layer close to the ground and is parallel to the bottom surface of the foundation pit.
Through adopting above-mentioned technical scheme, the position that is close to the upper end in second steel sheet pile layer takes place the slope easily, and the second waist rail that sets up on the position that is close to upper portion on the second steel sheet pile layer and is parallel with the foundation ditch bottom surface can couple up the stability that increases the second steel sheet with second steel sheet pile layer, prevents the slope on second steel sheet pile layer.
The present invention may be further configured in a preferred embodiment as: two ends of the tie rod are respectively connected to the first waist beam and the second waist beam.
Through adopting above-mentioned technical scheme, the both ends of drawknot pole are connected respectively on first waist rail and second waist rail, and the drawknot pole provides the tensile force and has strengthened the stability between first steel sheet pile layer and the second steel sheet pile layer to increase whole supporting device's stability, guaranteed the bulk rigidity of barricade.
The present invention may be further configured in a preferred embodiment as: the number of the tie rods is provided with a plurality of tie rods, and the plurality of tie rods are arranged on the first waist rail and the second waist rail at intervals in parallel.
Through adopting above-mentioned technical scheme, the quantity of drawknot pole is provided with a plurality ofly, and a plurality of drawknot poles support first waist rail and second waist rail jointly, support between first steel sheet pile layer and second steel sheet pile layer, make it have more firm supporting effect.
To sum up, the utility model discloses a following at least one useful technological effect:
1. the water stopping support device is characterized in that a first steel sheet pile layer and a second steel sheet pile layer are formed by a first steel sheet pile layer, a water stopping layer and a second steel sheet pile layer, the water stopping layer is clamped between the first steel sheet pile layer and the second steel sheet pile layer, the middle water stopping layer can play a role in stopping water, a retaining wall structure integrating water stopping support is formed, when the water stopping support device is not used, the steel sheet pile is convenient to recycle and construct, the construction cost is low, and the construction time is short;
2. the arrangement of the first waist beam, the second waist beam and the tie rod can play a role in reinforcement, and the stability of the whole device is improved.
Drawings
Fig. 1 is a schematic view of the overall structure of the present embodiment.
Fig. 2 is a vertical sectional view of the present embodiment.
In the figure, 11, a first steel sheet pile layer; 12. a first wale; 21. a water stopping layer; 31. a second steel sheet pile layer; 32. a second wale; 41. and (4) pulling the tie rod.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, for the utility model discloses a foundation ditch stagnant water supporting construction mainly comprises first steel sheet pile layer 11, stagnant water layer and third steel sheet pile layer 31 etc..
The water stopping layer 21 is composed of a plurality of cement-soil mixing piles which are arranged in sequence to form a circle. The method is characterized in that a cement-soil stirring pile machine is adopted to forcibly stir soft soil and a curing agent in the deep part of a foundation, the physical and chemical reactions generated between the curing agent and the soft soil are utilized to harden the soft soil into a high-quality foundation with integrity, water stability and certain strength, a rotating stirring blade is used to forcibly stir cement paste pressed into the soft soil and surrounding soft soil to form a mud reinforcing body, and a water stopping layer 21, namely a water stopping curtain, is formed. The lower end of the water stopping layer 21 extends into the pit body soil layer of the foundation pit bottom mark, and the outer sides of two side edges of the water stopping layer 21 are parallel.
Referring to fig. 1 and 2, the first steel sheet pile layer 11 is closely attached to one side of the water stop layer 21, and the first steel sheet pile layer 11 is formed by splicing a plurality of steel sheet piles and surrounds the outer side of the water stop layer 21. The lower end of the first steel sheet layer 11 is inserted into a soil layer of a pit body of a foundation pit bottom mark from the ground, the first steel sheet pile layer 11 plays a supporting role, is stably inserted into the ground, and fixes the first steel sheet pile layer 11 on the ground. First steel sheet pile layer 11 is close to the position of upper end and takes place the slope easily, in order to prevent that first steel sheet pile layer 11 from taking place the slope, is connected with first waist rail 12 on the side that first steel sheet pile layer 11 kept away from stagnant water layer 21, establishes on a side that is close to the foundation pit wall on first steel sheet pile layer 11, through the bolt detachable connection. The first wale 12 is perpendicular to the steel plate, so that the first steel sheet pile layer 11 is stably attached to the side wall of the foundation pit.
The second steel sheet pile layer 31 is closely attached to the other side of the water stop layer 21, and the second steel sheet pile layer 31 is formed by splicing a plurality of steel sheet piles and surrounds the inner side of the water stop layer 21. Second steel sheet pile layer 31 is disposed in parallel with first steel sheet pile layer 11. The lower end of the second steel sheet pile layer 31 is inserted into the pit body soil layer of the foundation pit bottom target and is flush with the lower ends of the first steel sheet pile layer 11 and the water stop layer 2, and one end of the second steel sheet pile layer 31 close to the ground may incline. Therefore, a second wale 32 is connected to the upper end of the second steel sheet pile layer 31, the second wale 32 is arranged on one side of the second steel sheet pile layer 31 far away from the waterproof layer 21, and the steel sheet piles are detachably connected by the second wale 32 through bolts. The second wale 32 is perpendicular to the steel sheet piles, parallel to the first wale 12, and at the same height. The second steel sheet pile layer 31 is reinforced so that the second steel sheet pile layer 31 can be maintained in a vertical state without being inclined.
Referring to fig. 2, the two ends of tie rod 41 are detachably connected to first wale 12 and second wale 32 through bolts respectively, and pass through two parallel arrangement's steel sheet pile, the quantity of tie rod 41 is established to a plurality of, and a plurality of tie rod 41 parallel arrangement connect jointly on first wale 12 and second wale 32, guarantee that the distance between first steel sheet pile layer 11 and the second steel sheet pile layer 31 does not change, and then strengthen whole support device's stability.
The first steel sheet pile layer 11 surrounds the outer ring of the water stop layer 21, and the second steel sheet pile layer 31 surrounds the inner ring of the water stop layer 21. And forming a foundation pit by an inner ring surrounded by the second steel sheet pile layer 31, and beginning the pit digging operation. After the foundation pit is used, the steel sheet piles in the first steel sheet pile layer 11 and the second steel sheet pile layer 31 are recovered.
The implementation principle of the embodiment is as follows: firstly, a cement-soil mixing pile machine is used for extending into the ground to carry out construction of the water stop layer 21, and two sides of the water stop layer 21 are parallel to each other. After the construction of the water stop layer 21 is completed, steel sheet piles are inserted into the ground surrounding the two sides of the water stop layer 21, and the first steel sheet pile layer 11 and the second steel sheet pile layer 31 are spliced. And finally, mounting the first wale 12 on the first steel sheet pile layer 11, mounting the second wale 32 on the second steel sheet pile layer 31, and finally mounting the tie rod 41 and fastening the tie rod 41 to realize the water-stopping supporting effect.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (8)
1. The utility model provides a foundation ditch stagnant water supporting construction which characterized in that: the waterproof structure comprises a waterproof layer (21), a first steel sheet pile layer (11) and a second steel sheet pile layer (31) which are respectively arranged on two side surfaces of the waterproof layer (21), and a tie rod (41) of which two ends are respectively connected to the first steel sheet pile layer (11) and the second steel sheet pile layer (31);
the first steel sheet pile layer (11) is parallel to the second steel sheet pile layer (31), and the first steel sheet pile layer (11) is attached to the side wall of the foundation pit.
2. A foundation pit water stop supporting structure according to claim 1, characterized in that: the lower end of the first steel sheet pile layer (11) is inserted into a pit body soil layer of the foundation pit.
3. A foundation pit water stop supporting structure according to claim 1, characterized in that: the lower end of the second steel sheet pile layer (31) is inserted into a pit body soil layer of the foundation pit.
4. A foundation pit water stop supporting structure according to claim 1, characterized in that: the waterproof layer (21) is arranged into a cement-soil stirring pile, and the lower end of the waterproof layer (21) is positioned in a pit body soil layer of the foundation pit.
5. A foundation pit water stop supporting structure according to claim 1, characterized in that: and a first wale (12) is arranged on the first steel sheet pile layer (11), and the first wale (12) is arranged on the upper part of the first steel sheet pile layer (11) and is parallel to the bottom surface of the foundation pit.
6. A foundation pit water stop supporting structure according to claim 5, characterized in that: and a second wale (32) is arranged on the second steel sheet pile layer (31), and the second wale (32) is arranged at the upper part of the second steel sheet pile layer (31) and is parallel to the bottom surface of the foundation pit.
7. A foundation pit water stop supporting structure according to claim 6, characterized in that: two ends of the tie rod (41) are respectively connected to the first waist rail (12) and the second waist rail (32).
8. A foundation pit water stop support structure according to claim 7, characterized in that: the number of the tie rods (41) is multiple, and the tie rods (41) are arranged on the first waist rail (12) and the second waist rail (32) in parallel at intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020818019.8U CN212427117U (en) | 2020-05-16 | 2020-05-16 | Foundation ditch stagnant water supporting construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020818019.8U CN212427117U (en) | 2020-05-16 | 2020-05-16 | Foundation ditch stagnant water supporting construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212427117U true CN212427117U (en) | 2021-01-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020818019.8U Active CN212427117U (en) | 2020-05-16 | 2020-05-16 | Foundation ditch stagnant water supporting construction |
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|---|---|
| CN (1) | CN212427117U (en) |
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2020
- 2020-05-16 CN CN202020818019.8U patent/CN212427117U/en active Active
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