CN212506296U - Self-sinking type deep foundation pit retaining wall structure - Google Patents
Self-sinking type deep foundation pit retaining wall structure Download PDFInfo
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- CN212506296U CN212506296U CN202021037912.3U CN202021037912U CN212506296U CN 212506296 U CN212506296 U CN 212506296U CN 202021037912 U CN202021037912 U CN 202021037912U CN 212506296 U CN212506296 U CN 212506296U
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Abstract
The utility model provides a from formula of sinking deep basal pit barricade structure, include: the cylindrical retaining wall comprises a cylindrical retaining wall body, wherein a soil breaking structure is formed at the bottom of the cylindrical retaining wall body, and the cylindrical retaining wall body is suitable for realizing downward soil breaking and sinking through the cooperation of the soil breaking structure and the gravity of the cylindrical retaining wall body; a water pipe which is communicated up and down is poured in the cylindrical retaining wall body, and the water pipe is provided with a water outlet which is positioned on the lower end surface of the cylindrical retaining wall body and a water inlet which is positioned on the upper end surface of the cylindrical retaining wall body; still including setting up resistance-increasing device on the lateral wall of barrel-type barricade body, resistance-increasing device is used for cooperating with the ground, adjusts the ground is right the ascending resistance of barrel-type barricade body.
Description
Technical Field
The utility model relates to a from formula of sinking deep basal pit barricade structure.
Background
The construction difficulty of underground buildings is too big, the cost is too high, especially relate to "excavation supporting" engineering volume proportion when soft soil foundation too big, often appear "supporting the cost" and than the condition that main body building cost is high. In addition, underground engineering construction is complicated, so that the process links are multiple, the connection difficulty is high, the required construction period is too long, the influence on the surrounding environment is too large, for example, noise, vibration, waste gas, slurry and the like can be generated, and the influence is larger particularly in dense population areas. In the prior art, when a deep foundation pit is supported, a retaining wall is mainly formed by adopting a piling mode, for example, Chinese patent document CN108708382A discloses a continuous retaining wall for the deep foundation pit, wherein a continuous meshing part is formed by mutually and continuously meshing at least one layer of pile bodies and is annularly arranged around the foundation pit; the waterproof part is longitudinally inserted at the occlusion part of at least two adjacent piles and used for preventing underground water from permeating from the outer side of the foundation pit to the inner side of the foundation pit of the continuous occlusion part; the water blocking component is channel steel or steel plate. Above structure, can pass through the part that blocks water prevents effectively that groundwater from the interlock department infiltration of two adjacent pile bodies is inside the foundation ditch to the stagnant water ability of deep basal pit continuous barricade has been improved. Chinese patent document CN209308039U discloses a deep foundation pit underground space structure, which is characterized by comprising: the foundation pit is cylindrical; the plurality of cement soil pile bodies are annularly arranged along the inner wall of the foundation pit and mutually meshed to form a closed retaining wall; a plurality of interior ring beam of propping follows the annular fixed setting of inner wall of barricade, follow the inside of foundation ditch is right to the soil body the barricade forms the support, wherein, interior ring beam's interval certainly foundation ditch top reduces to the bottom gradually. The two foundation pit retaining walls are two main retaining wall forms in the prior art and are obtained by adopting piling form construction.
Although the two retaining walls can be used for driving the pile body to the designed depth according to the construction requirements, the pile driving construction can cause the defects of more construction processes, higher construction noise, longer construction period, higher pollution to the surrounding environment and the like.
In addition, because the soil body condition of job site is inconsistent, for example, the water content of the soil body of different degree of depth differs, the frictional resistance that leads to deep basal pit retaining wall structure to sink to different degree of depth meets is different to influence the speed of sinking, if sink at a certain degree of depth fast, and then influence the engineering quality.
SUMMERY OF THE UTILITY MODEL
Therefore, the utility model discloses the technical problem who solves lies in how to provide a construction process less, and it is less to produce the construction noise, and the time limit for a project is shorter, and the pollution that brings the all ring edge borders is less, and can be according to the soil body condition carry out the formula deep basal pit barricade structure that sinks certainly that adjusts to the speed of sinking.
The utility model provides a from formula of sinking deep basal pit barricade structure, include: the cylindrical retaining wall comprises a cylindrical retaining wall body, wherein the cylindrical retaining wall body comprises a first cylinder and a second cylinder which are poured and tamped together from top to bottom; a soil breaking structure is formed at the bottom of the first barrel, the soil breaking structure is a blade foot structure with an inclined edge at the inner side and a large-upper-lower-cross section, the soil breaking structure is provided with a protruding structure protruding outwards relative to the outer side wall of the main body of the cylindrical retaining wall body, the circumferential diameter of the protruding structure is larger than that of other parts of the cylindrical retaining wall body, and the outer side surface of the protruding structure is vertically arranged or formed; the cylindrical retaining wall body is suitable for realizing downward soil breaking and sinking through the cooperation of the soil breaking structure and the gravity of the cylindrical retaining wall body; a vertical water pipe which is communicated up and down is poured in the cylindrical retaining wall body, and the vertical water pipe is provided with a water outlet positioned on the bevel edge of the ground breaking structure and a water inlet positioned on the upper end surface of the cylindrical retaining wall body, wherein the water outlet direction of the water outlet is vertically downward or downward along the bevel edge; from formula deep basal pit retaining wall structure that sinks includes again: the resistance increasing devices are arranged on the outer side wall of the cylindrical retaining wall body and are circumferentially and symmetrically distributed, and the resistance increasing devices are suitable for being matched with a foundation to adjust the upward resistance of the foundation to the cylindrical retaining wall body; the resistance increasing device comprises an installation structure which is arranged on the outer side wall of the cylindrical retaining wall body; a resistance increasing member; the adjusting mechanism is respectively connected with the mounting structure and the resistance increasing component and is used for adjusting the relative position of the resistance increasing component and the mounting structure so as to adjust the upward resistance of the foundation to the cylindrical retaining wall body through the resistance increasing component; wherein the position of the resistance-increasing component in the vertical direction is lower than that of the mounting structure, or is arranged in a flush manner; from formula deep basal pit retaining wall structure that sinks still includes: and the lateral water pipe is poured in the cylindrical retaining wall body, the lateral wall of the cylindrical retaining wall body is communicated with the outside, and the lateral water pipe is communicated with the longitudinal water pipe.
The above self-sinking deep foundation pit retaining wall structure further comprises a grouting pipe which is poured in the cylindrical retaining wall body and is located between the upper end surface and the outer end surface of the cylindrical retaining wall body.
Foretell from formula deep basal pit barricade structure that sinks, wherein, the slip casting pipe is the cross slip casting pipe, wherein, the cross slip casting pipe has and transversely pierces through the portion is violently managed to the medial surface of barrel-shaped barricade body and lateral wall, and the inside vertical extension's of barrel-shaped barricade body perpendicular pipe portion.
Foretell from formula of sinking deep basal pit retaining wall structure, wherein, adjustment mechanism is oil cylinder mechanism or screw precession mechanism, oil cylinder mechanism or screw precession mechanism one end can be dismantled and connect and be in mounting structure is last, the other end with increase and hinder the part and connect.
The self-sinking deep foundation pit retaining wall structure is characterized in that a reference marker is arranged on the outer side surface of the cylindrical retaining wall body and used for judging the sinking speed of the cylindrical retaining wall body.
In the above self-sinking deep foundation pit retaining wall structure, the resistance increasing component is a top pressure plate.
The above technical scheme of the utility model has following technological effect:
1. the embodiment of the utility model discloses from formula of sinking deep basal pit retaining wall structure, include: the cylindrical retaining wall comprises a cylindrical retaining wall body, wherein a soil breaking structure is formed at the bottom of the cylindrical retaining wall body, the soil breaking structure is a blade foot structure with an inclined edge at the inner side and a large-upper-small-lower-cross section, so that the cutting of a soil body is facilitated, the rapid sinking is realized, and the construction progress is accelerated;
the soil breaking structure is provided with a protruding structure protruding outwards relative to the outer side wall of the main body of the cylindrical retaining wall body, the circumferential diameter of the protruding structure is larger than that of other parts of the cylindrical retaining wall body, and the design can reduce the contact area of a soil body to the outer side wall of the cylindrical retaining wall body, so that the frictional resistance is reduced, the rapid sinking is facilitated, and the construction progress is accelerated;
the outer side surface of the protruding structure is vertically arranged or formed, so that the end resistance of a soil body to the outer side wall of the cylindrical retaining wall body is reduced, and the vertical arrangement is matched with the blade foot structure, so that the rapid sinking is facilitated, and the construction progress can be accelerated;
a water pipe which is communicated up and down is poured in the cylindrical retaining wall body, and the water pipe is provided with a water outlet which is positioned on the bevel edge of the ground breaking structure and is positioned on the water pipe, and a water inlet which is positioned on the upper end surface of the cylindrical retaining wall body; the water outlet direction of the water outlet is vertically downward or downward along the bevel edge; through the design, on one hand, water can be injected into the soil body positioned on the lower end surface or the blade foot structure position of the cylindrical retaining wall body through the water pipe to soften the soil body, so that the aim of reducing the resistance of the cylindrical retaining wall body end is fulfilled, the cylindrical retaining wall body is favorable for sinking, and in addition, the soil body positioned on the blade foot structure position can be scoured by introducing high-pressure water flow, the soil body is favorable for quickly removing, so that the cylindrical retaining wall body sinks by virtue of gravity, and the construction progress is improved;
the resistance increasing devices are arranged on the outer side wall of the cylindrical retaining wall body and are symmetrically distributed in the circumferential direction, and are used for adjusting the upward resistance of the foundation to the cylindrical retaining wall body, so that the sinking speed and/or the verticality of the cylindrical retaining wall body can be adjusted more conveniently, the engineering quality is ensured, and the sinking speed of the self-sinking type deep foundation pit retaining wall structure can be controlled according to different soil body conditions, so that the self-sinking type deep foundation pit retaining wall structure is constructed under various comprehensive soil body conditions, and further the construction environment applicability of the utility model is stronger;
the barrel-shaped retaining wall body comprises: the first cylinder and the second cylinder are poured and tamped together from top to bottom; by adopting the design, construction can be carried out according to the design depth, so that materials are saved, and the construction cost is reduced;
from formula deep basal pit retaining wall structure that sinks still includes: and the lateral water pipe is poured in the cylindrical retaining wall body, the lateral wall of the cylindrical retaining wall body is communicated with the outside, and the lateral water pipe is communicated with the longitudinal water pipe. The lateral water pipes are injected with water, so that water flows to soil on the outer side wall of the cylindrical retaining wall body to soften the soil, the abrasion resistance of the soil to the cylindrical retaining wall body can be reduced, the cylindrical retaining wall body can sink, and the construction progress is accelerated;
in addition, the utility model does not adopt high-power piling equipment to carry out foundation pit piling construction, thereby reducing the generated noise and reducing the pollution to the surrounding environment;
to sum up, the utility model discloses it is few from formula of sinking deep basal pit barricade structure construction process, be favorable to improving the construction progress, practice thrift construction cost, reduced the construction noise and to peripheral environmental pollution.
2. The cylindrical retaining wall body also comprises a through grouting pipe which is poured in the cylindrical retaining wall body and is positioned between the upper end surface and the outer end surface of the cylindrical retaining wall body; the added grouting pipe can be used for introducing concrete slurry into soil bodies of the basement and the outer side wall after the cylindrical retaining wall body sinks to the final preset depth, so that the water stopping and reinforcing effects are achieved.
3. The utility model discloses an in the embodiment, adjustment mechanism is hydro-cylinder mechanism or screw thread precession mechanism, hydro-cylinder mechanism or screw thread precession mechanism one end can be dismantled and connect and be in mounting structure is last, the other end with the resistance-increasing part is connected. The detachable connection mode can be detached after the cylindrical retaining wall body sinks to a certain position and when the resistance increasing device is not needed any more, so that subsequent repeated use is facilitated, and the construction cost is reduced.
4. The position of the resistance increasing component in the vertical direction is lower than that of the mounting structure, so that the mounting structure can support the resistance increasing component downwards and lift the cylindrical retaining wall body.
5. The outer side surface of the cylindrical retaining wall body is provided with a reference marker, and constructors or related detection devices can use the reference marker as a reference object, so that the sinking speed can be judged or detected more easily.
6. The resistance increasing component is a top pressure plate, and can form a larger soil body contact area on a foundation with larger water content, so that enough resistance can be guaranteed.
7. The cylindrical retaining wall body also comprises a through grouting pipe which is poured in the cylindrical retaining wall body and is positioned between the upper end surface and the outer end surface of the cylindrical retaining wall body; the added grouting pipe can be used for introducing concrete slurry into soil bodies of the basement and the outer side wall after the cylindrical retaining wall body sinks to the final preset depth, so that the water stopping and reinforcing effects are achieved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of an embodiment of the self-sinking deep foundation pit retaining wall structure of the present invention;
FIG. 2 is an enlarged view taken at A of FIG. 1;
FIG. 3 is an enlarged view at B of FIG. 1;
fig. 4 is a top view of the self-sinking deep foundation pit retaining wall structure of fig. 1;
reference numerals:
1-a cylindrical retaining wall body; 2-breaking the soil; 3-an outer side wall; 4-resistance increasing device; 5-foundation base;
6-mounting a structure; 7-resistance increasing component; 8-an adjusting mechanism; 11-a first cylinder; 12-a second cylinder;
20-longitudinal water pipes; 30-lateral water pipe, 80-water outlet; 81-water inlet; 30-a lateral water pipe, wherein,
101-protruding structure.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.
As shown in fig. 1 to 4, the embodiment provides a self-sinking deep foundation pit retaining wall structure, which comprises a cylinder-shaped retaining wall body 1, wherein the cylinder-shaped retaining wall body comprises a first cylinder 11 and a second cylinder 12 which are poured and tamped together from top to bottom; a soil breaking structure 2 is formed at the bottom of the cylindrical retaining wall body 1, the soil breaking structure 2 is a blade structure with an inclined edge on the inner side and a large-upper-small-lower-cross section, wherein the soil breaking structure 2 is provided with a protruding structure 101 protruding outwards relative to the outer side wall of the main body of the cylindrical retaining wall body, the circumferential diameter of the protruding structure is larger than that of other parts of the cylindrical retaining wall body, and the outer side surface of the protruding structure 2 is vertically arranged or formed; the cylindrical retaining wall body 1 is suitable for realizing downward soil breaking and sinking through the gravity cooperation of the soil breaking structure 2 and the cylindrical retaining wall body; a vertical water pipe 20 which is communicated up and down is poured in the cylindrical retaining wall body 1, the vertical water pipe 20 is provided with a water outlet 80 which is positioned on the inclined edge of the ground breaking structure, and a water inlet 81 which is positioned on the upper end surface of the cylindrical retaining wall body 1, wherein the water outlet direction of the water outlet 80 is vertical downward, and as an alternative embodiment, the water outlet 80 can also be downward along the inclined edge (not shown); this embodiment from formula of sinking deep basal pit retaining wall structure includes again: the resistance-increasing devices 4 are circumferentially and symmetrically distributed on the outer side wall 3 of the cylindrical retaining wall body 1, and the resistance-increasing devices 4 are suitable for being matched with a foundation 5 to adjust the upward resistance of the foundation 5 to the cylindrical retaining wall body 1; the resistance increasing device 4 comprises a mounting structure 6 which is arranged on the outer side wall 3 of the cylindrical retaining wall body 1; a resistance increasing member 7; the adjusting mechanism 8 is respectively connected with the mounting structure 6 and the resistance increasing component 7 and is used for adjusting the relative position of the resistance increasing component 7 and the mounting structure 6 so as to adjust the upward resistance of the foundation 5 to the cylindrical retaining wall body 1 through the resistance increasing component 7; wherein the position of the resistance-increasing component 7 in the vertical direction is lower than the position of the mounting structure 6, however, as another alternative embodiment, both may be arranged flush; from formula deep basal pit retaining wall structure that sinks still includes: and the lateral water pipe 30 is poured in the cylindrical retaining wall body 1, the lateral wall 3 of the cylindrical retaining wall body 1 is communicated with the outside, and the lateral water pipe 30 is communicated with the longitudinal water pipe 20.
As a preferred embodiment, the retaining wall further comprises a through grouting pipe which is poured in the cylindrical retaining wall body and is positioned between the upper end surface and the outer end surface of the cylindrical retaining wall body.
Wherein, the slip casting pipe is preferably the cross slip casting pipe, wherein, the cross slip casting pipe has transversely pierces through the horizontal pipe portion of the medial surface and the lateral wall of barrel-type barricade body, and the inside vertical extension's of barrel-type barricade body perpendicular pipe portion.
The adjusting mechanism can be an oil cylinder mechanism or a thread screwing mechanism, one end of the oil cylinder mechanism or the thread screwing mechanism is detachably connected to the mounting structure, and the other end of the oil cylinder mechanism or the thread screwing mechanism is connected with the resistance increasing component.
And a reference marker (not shown here) is arranged on the outer side surface of the cylindrical retaining wall body and is used for judging the sinking speed of the cylindrical retaining wall body.
The resistance increasing component is preferably a top pressure plate.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.
Claims (6)
1. The utility model provides a deep basal pit retaining wall structure of formula of sinking certainly, includes:
a cylindrical retaining wall body is arranged on the retaining wall,
the cylindrical retaining wall is characterized in that the cylindrical retaining wall body comprises a first cylinder and a second cylinder which are poured and tamped together from top to bottom; a soil breaking structure is formed at the bottom of the first barrel, the soil breaking structure is a blade foot structure with an inclined edge at the inner side and a large-upper-lower-cross section, the soil breaking structure is provided with a protruding structure protruding outwards relative to the outer side wall of the main body of the cylindrical retaining wall body, the circumferential diameter of the protruding structure is larger than that of other parts of the cylindrical retaining wall body, and the outer side surface of the protruding structure is vertically arranged or formed; the cylindrical retaining wall body is suitable for realizing downward soil breaking and sinking through the cooperation of the soil breaking structure and the gravity of the cylindrical retaining wall body; a vertical water pipe which is communicated up and down is poured in the cylindrical retaining wall body, and the vertical water pipe is provided with a water outlet positioned on the bevel edge of the ground breaking structure and a water inlet positioned on the upper end surface of the cylindrical retaining wall body, wherein the water outlet direction of the water outlet is vertically downward or downward along the bevel edge;
from formula deep basal pit retaining wall structure that sinks includes again: the resistance increasing devices are arranged on the outer side wall of the cylindrical retaining wall body and are circumferentially and symmetrically distributed, and the resistance increasing devices are suitable for being matched with a foundation to adjust the upward resistance of the foundation to the cylindrical retaining wall body; the resistance increasing device comprises an installation structure which is arranged on the outer side wall of the cylindrical retaining wall body; a resistance increasing member; the adjusting mechanism is respectively connected with the mounting structure and the resistance increasing component and is used for adjusting the relative position of the resistance increasing component and the mounting structure so as to adjust the upward resistance of the foundation to the cylindrical retaining wall body through the resistance increasing component; wherein the position of the resistance-increasing component in the vertical direction is lower than that of the mounting structure, or is flush with the mounting structure;
from formula deep basal pit retaining wall structure that sinks still includes: and the lateral water pipe is poured in the cylindrical retaining wall body, the lateral wall of the cylindrical retaining wall body is communicated with the outside, and the lateral water pipe is communicated with the longitudinal water pipe.
2. The self-sinking deep foundation pit retaining wall structure according to claim 1, further comprising a through grouting pipe which is poured into the cylindrical retaining wall body and is located between the upper end surface and the outer end surface of the cylindrical retaining wall body.
3. The self-sinking deep foundation pit retaining wall structure according to claim 2, wherein the grouting pipe is a cross grouting pipe, wherein the cross grouting pipe has a horizontal pipe portion laterally penetrating the inner side surface and the outer side wall of the cylindrical retaining wall body, and a vertical pipe portion vertically extending inside the cylindrical retaining wall body.
4. The self-sinking deep foundation pit retaining wall structure according to claim 3, wherein:
the adjusting mechanism is an oil cylinder mechanism or a thread screwing mechanism, one end of the oil cylinder mechanism or the thread screwing mechanism is detachably connected to the mounting structure, and the other end of the oil cylinder mechanism or the thread screwing mechanism is connected with the resistance increasing component.
5. The self-sinking deep foundation pit retaining wall structure according to claim 4,
and a reference marker is arranged on the outer side surface of the cylindrical retaining wall body and used for judging the sinking speed of the cylindrical retaining wall body.
6. The self-sinking deep foundation pit retaining wall structure according to claim 5, wherein the resistance increasing member is a top press plate.
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| CN202021037912.3U CN212506296U (en) | 2020-06-02 | 2020-06-02 | Self-sinking type deep foundation pit retaining wall structure |
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| CN202021037912.3U CN212506296U (en) | 2020-06-02 | 2020-06-02 | Self-sinking type deep foundation pit retaining wall structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021243995A1 (en) * | 2020-06-02 | 2021-12-09 | 江西基业科技集团有限公司 | Deep foundation pit retaining wall structure and construction method for underground space structure |
| WO2021243997A1 (en) * | 2020-06-02 | 2021-12-09 | 江西基业科技集团有限公司 | Self-sinking-type deep foundation pit retaining wall structure and construction method for underground space structure |
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2020
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021243995A1 (en) * | 2020-06-02 | 2021-12-09 | 江西基业科技集团有限公司 | Deep foundation pit retaining wall structure and construction method for underground space structure |
| WO2021243997A1 (en) * | 2020-06-02 | 2021-12-09 | 江西基业科技集团有限公司 | Self-sinking-type deep foundation pit retaining wall structure and construction method for underground space structure |
| US11965304B2 (en) | 2020-06-02 | 2024-04-23 | Jiangxi Jiye Science And Technology Group Co, Ltd. | Self-sinking-type deep foundation pit retaining wall structure and construction method for underground space structure |
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