CN214245753U

CN214245753U - Whole bearing structure of circular big deep foundation ditch

Info

Publication number: CN214245753U
Application number: CN202023169899.XU
Authority: CN
Inventors: 刘锐; 方成成; 赵星; 李天成; 姚李; 董永
Original assignee: China Tiesiju Civil Engineering Group Co Ltd CTCE Group
Current assignee: China Tiesiju Civil Engineering Group Co Ltd CTCE Group
Priority date: 2020-12-24
Filing date: 2020-12-24
Publication date: 2021-09-21
Anticipated expiration: 2030-12-24
Also published as: DE202021103435U1

Abstract

The utility model discloses a whole bearing structure of circular dark big foundation ditch, including first supporting component and more than one second supporting component and reinforcement stand component, in the first supporting component first annular supports and has through peripheral annular distribution first reinforced concrete support with the interior fixed connection that encloses of annular hat roof beam, in the second supporting component second annular supports and has through peripheral annular distribution second reinforced concrete support with the interior fixed connection that encloses of annular waist roof beam, in the reinforcement stand component the stand body passes through ground in damping hydraulic pressure section of thick bamboo subassembly and shock mount subassembly and the dark big foundation ditch is fixed. The utility model discloses in, through adopting multi-level annular bearing structure, not only can improve the atress condition of support system in the work progress, improve the construction security of big deep foundation ditch, still help shortening construction period and cost, gain good economic benefits.

Description

Whole bearing structure of circular big deep foundation ditch

Technical Field

The utility model relates to a bearing structure field, specifically speaking relate to a circular big deep foundation ditch overall support structure.

Background

In recent years, with the rapid development of social economy, the scale of urban construction is continuously enlarged, the number of the ordinary population in urban areas is continuously increased, cities are more and more crowded, and great pressure is caused on traffic networks on the ground, so that the urban syndrome can be greatly relieved by constructing underground rapid traffic engineering such as subways, expressways and the like. Subway engineering and high-speed rail engineering as a convenient vehicle not only greatly alleviate the congestion problem of large and medium-sized cities, but also draw the distance between the cities, draw the rapid development of regional economy, and gradually focus on expanding the underground available depth and breadth in most of national construction targets in the world.

Along with the gradual increase of underground engineering scale, the foundation ditch depth also deepens thereupon, and also develops out special-shaped foundation ditch. Because the depth of foundation ditch increases and the structure dysmorphism leads to the construction risk to improve, so in order to guarantee that foundation ditch construction can go on safely, need adopt brand-new bearing structure.

The existing supporting system in the special-shaped foundation pit, particularly in the circular deep and large foundation pit generally adopts a horizontal supporting mode to support. However, the traditional horizontal opposite-bracing supporting method is not only easy to bend and damage under stress, but also not beneficial to mechanical construction in a round deep and large foundation pit, has a large influence on site construction, and increases the actual cost and the construction period.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a atress situation that not only effectively improves the support system is provided, makes things convenient for mechanical construction moreover, raises the efficiency, reduction of erection time's whole bearing structure of circular deep and big foundation ditch and supporting method thereof.

In order to solve the technical problem, the utility model discloses a following technical scheme: a circular deep and large foundation pit integral supporting structure comprises a first supporting member, more than one second supporting members and reinforcing upright post members, wherein each second supporting member is fixedly connected to the bottom of the first supporting member through each reinforcing upright post member;

the first support component comprises an annular crown beam, a first annular support and a first reinforced concrete support, the annular crown beam and the first annular support are distributed in a concentric circle mode, and the first annular support is fixedly connected with the inner periphery of the annular crown beam through the first reinforced concrete support distributed on the periphery in an annular mode;

the second support member comprises an annular waist beam, a second annular support and a second reinforced concrete support, the annular waist beam and the second annular support are distributed in concentric circles, and the second annular support is fixedly connected with the inner periphery of the annular waist beam through the second reinforced concrete support distributed annularly on the periphery;

the reinforced upright column component comprises an upright column body, a damping hydraulic cylinder assembly and a damping base assembly, wherein the damping base assembly is movably connected with the bottom end of the upright column body, the damping hydraulic cylinder assembly is provided with two parts which are symmetrically hinged to two sides of the lower end of the upright column body, and the upright column body is fixed with the ground in a deep foundation pit through the damping hydraulic cylinder assembly and the damping base assembly.

Further, the first supporting member is fixed on the shallower inner side of the deep and large foundation pit continuous wall through the annular crown beam, the first reinforced concrete support is fixedly connected inside the annular crown beam in a steel bar planting connection mode, the inner diameter and the outer diameter of the first reinforced concrete support are distributed in a triangular structure, the size of the annular crown beam is 1000X1200mm, the size of the first annular support is 1000X 2000mm, and the size of the first reinforced concrete support is 800X 1000 mm.

Furthermore, the number of the second supporting members is determined according to the specific depth of the deep and large foundation pit, the second supporting members are fixed on the deeper inner side of the continuous wall of the deep and large foundation pit through the annular waist beam, the second reinforced concrete supports are fixedly connected inside the annular waist beam in a rebar planting connection mode, the inner diameter and the outer diameter of the second reinforced concrete supports are distributed in a triangular structure, the size of the annular waist beam is 1200 x 1400mm, the size of the second annular support is 1200 x 2500mm, and the size of the second reinforced concrete supports is 1000x1200 mm.

Further, first supporting component still includes the pavement beam, pavement beam transverse connection in the inside axle center department of first annular support, just the apron is installed to the top surface of pavement beam, the size of pavement beam is 1000x 1000mm, the apron adopts 350mm thick concrete casting to make.

Further, the second support member further comprises a tie beam connected transversely at the inner axial center of the second ring support, and the tie beam has a dimension of 800 x 900 mm.

Furthermore, a first mounting hole is annularly distributed on the first annular support, a second mounting hole is annularly distributed on the second annular support, and elastic rubber pads are attached to the inner walls of the first mounting hole and the second mounting hole.

Further, the reinforcing upright post component further comprises a plurality of sleeves, the sleeves are respectively sleeved on the upright post body at intervals, and the upright post body penetrates through the second mounting hole and the first mounting hole from bottom to top in sequence and is fixedly connected with the second supporting component and the first supporting component.

Further, the damping hydraulic cylinder assembly comprises a piston rod and a cylinder body, the piston rod penetrates through the cylinder body, and the two ends of the piston rod are respectively fixed with the vertical column body and the ground in the deep foundation pit at an inclined angle through the hinged parts.

Further, the vibration damping mount subassembly includes base shell and damping spring, base shell fixes subaerial in the deep big foundation ditch, damping spring's bottom with base shell's inner wall fixed connection, damping spring's top is equipped with the limiting plate, the bottom of stand body passes from top to bottom base shell and limiting plate in proper order, and with the damping spring activity cup joints.

The beneficial effects of the utility model are embodied in:

the utility model discloses in, first supporting member fixed mounting is inboard in the deep big foundation ditch diaphragm wall is more shallow, second supporting member fixed mounting is inboard in the deep big foundation ditch diaphragm wall is more dark, thereby and the second supporting member constantly increases the number of piles according to the actual degree of depth of the deep big foundation ditch in the actual work progress confirm the number, it also accumulates the height of stand body according to the actual degree of depth stack of the deep big foundation ditch in the actual work progress to consolidate the stand component, thereby reach required high standard and the factor of safety of construction, through adopting multi-level annular bearing structure, not only can improve the atress condition of support system in the work progress, improve the construction safety of deep big foundation ditch, still help shortening construction period and cost, gain good economic benefits.

The utility model discloses in, in first supporting component, first annular supports the mode that adopts the bar planting to connect and the interior fixed connection that encircles of annular crown beam through some first reinforced concrete supports of peripheral annular distribution, in the second supporting component, the second annular supports the interior fixed connection that adopts the mode that the bar planting is connected and annular waist rail through some second reinforced concrete supports of peripheral annular distribution, and first reinforced concrete supports and second reinforced concrete supports and all adopts and be triangle-shaped structure annular distribution between the internal and external diameters, the device overall structure's steadiness and security have been improved greatly, the damping hydraulic cylinder subassembly and the vibration damping base subassembly that the cooperation was consolidated stand component lower extreme was equipped with simultaneously use, effectively offset the tremor shake of alleviating production in actual work progress, help providing steady construction environment.

Drawings

Fig. 1 is an overall side view of an embodiment of the present invention.

Fig. 2 is a top view of a first support member of an embodiment of the present invention, with the cover plate in front of the first support member.

Fig. 3 is a top view of the first support member with a cover plate attached according to an embodiment of the present invention.

Fig. 4 is a top view of a second support member according to an embodiment of the present invention.

Fig. 5 is a partial cross-sectional view of a reinforcing stud member according to an embodiment of the invention.

The components in the drawings are labeled as follows: 1. a first support member; 101. an annular crown beam; 102. a first annular support; 103. a walkway beam; 104. a cover plate; 105. a first reinforced concrete support; 106. a first mounting hole; 2. a second support member; 201. an annular waist rail; 202. a second annular support; 203. a tie-beam; 204. a second reinforced concrete support; 205. a second mounting hole; 3. reinforcing the column member; 301. a column body; 302. a sleeve; 303. a damping hydraulic cylinder assembly; 3031. an articulation member; 3032. a piston rod; 3033. a barrel body; 304. a shock mount assembly; 3041. a base housing; 3042. a limiting plate; 3043. a shock absorbing spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The embodiments and features of the embodiments in the present application may be combined with each other without conflict. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, "a plurality" means two or more. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

See fig. 1-5.

The utility model relates to an integral supporting structure of a circular deep and large foundation pit, which comprises a first supporting member 1, more than one second supporting members 2 and reinforcing upright post members 3, wherein each second supporting member 2 is fixedly connected with the bottom of the first supporting member 1 through each reinforcing upright post member 3;

the first supporting member 1 comprises an annular crown beam 101, a first annular support 102 and a first reinforced concrete support 105, the annular crown beam 101 and the first annular support 102 are distributed in concentric circles, and the first annular support 102 is fixedly connected with the inner periphery of the annular crown beam 101 through the first reinforced concrete support 105 distributed annularly on the periphery;

the second support member 2 comprises an annular wale 201, a second annular support 202 and a second reinforced concrete support 204, the annular wale 201 and the second annular support 202 are concentrically distributed, and the second annular support 202 is fixedly connected with the inner periphery of the annular wale 201 through the second reinforced concrete support 204 distributed annularly on the periphery;

the reinforced upright post member 3 comprises an upright post body 301, two damping hydraulic cylinder assemblies 303 and a shock absorption base assembly 304, wherein the shock absorption base assembly 304 is movably connected with the bottom end of the upright post body 301, the two damping hydraulic cylinder assemblies 303 are symmetrically hinged to two sides of the lower end of the upright post body 301, and the upright post body 301 is fixed with the ground in a deep foundation pit through the damping hydraulic cylinder assemblies 303 and the shock absorption base assembly 304.

In an embodiment, the first supporting member 1 is fixed on the shallower inner side of the deep and large foundation pit continuous wall through the annular crown beam 101, the first annular brace 102 is fixedly connected inside the annular crown beam 101 by the first reinforced concrete brace 105 through a bar planting connection mode, the inner diameter and the outer diameter of the first reinforced concrete brace 105 are distributed in a triangular structure, the size of the annular crown beam 101 is 1000X1200mm, the size of the first annular brace 102 is 1000X 2000mm, and the size of the first reinforced concrete brace 105 is 800X 1000 mm. By adopting the design, the stability of the first supporting member 1 is improved, and smooth construction conditions are provided for constructors and construction vehicles.

In an embodiment, the number of the second support members 2 is determined according to the specific depth of the deep and large foundation pit, the second support members 2 are fixed on the deeper inner side of the deep and large foundation pit continuous wall through the annular wale 201, the second reinforced concrete supports 204 are fixedly connected inside the annular wale 201 through the bar planting connection mode, the inner diameter and the outer diameter of the second reinforced concrete supports 204 are distributed in a triangular structure, the size of the annular wale 201 is 1200 × 1400mm, the size of the second annular supports 202 is 1200 × 2500mm, and the size of the second reinforced concrete supports 204 is 1000 × 1200 mm. The design is beneficial to improving the stability of the second supporting component 2, and the stress condition of a supporting system in the construction process is greatly improved through a multi-layer annular supporting structure.

In an embodiment, the first support member 1 further includes a temporary support 103, the temporary support 103 is transversely connected to the inner axis of the first ring support 102, a cover plate 104 is installed on the top surface of the temporary support 103, the size of the temporary support 103 is 1000 × 1000mm, and the cover plate 104 is cast by 350mm thick concrete. Design like this, effectively guarantee first supporting member 1 overall structure's integrality and fastness to be convenient for staff and construction vehicle follow walk on the apron 104, improve construction operation convenience.

In one embodiment, the second support member 2 further comprises a tie beam 203, the tie beam 203 is connected transversely to the inner axis of the second ring support 202, and the tie beam 203 has a dimension of 800 × 900 mm. By the design, the integrity and firmness of the whole structure of the second supporting member 2 are effectively ensured.

In an embodiment, a first mounting hole 106 is annularly distributed on the first annular support 102, a second mounting hole 205 is annularly distributed on the second annular support 202, and elastic rubber pads are attached to inner walls of the first mounting hole 106 and the second mounting hole 205. By the design, the elastic rubber pad is required to have 20% -35% compressibility to meet the requirement of transverse temperature deformation, and firm installation and tight seams are guaranteed.

In an embodiment, the reinforcing pillar member 3 further includes a plurality of sleeves 302, the plurality of sleeves 302 are respectively sleeved on the pillar body 301 at intervals, and the pillar body 301 vertically penetrates through the second mounting hole 205 and the first mounting hole 106 from bottom to top through the sleeves 302, and is fixedly connected to the second support member 2 and the first support member 1. Due to the design, the first supporting member 1 and the second supporting member 2 are vertically connected through the reinforcing upright post member 3, a complete circular integral supporting structure is formed, and therefore deep and large foundation pits are supported.

In an embodiment, the damping hydraulic cylinder assembly 303 includes a piston rod 3032 and a cylinder 3033, the piston rod 3032 penetrates through the cylinder 3033, and two ends of the piston rod 3032 fix the column body 301 and the ground in the deep and large foundation pit at an inclined angle through a hinge 3031 provided therein. By the design, when the device generates vibration, the upright post body 301 shakes, and the piston rod 3032 is compressed obliquely in the cylinder body 3033 to generate damping force, so that the offset impact force is relieved, and the overall stability of the device is improved.

In an embodiment, the damping base assembly 304 includes a base housing 3041 and a damping spring 3043, the base housing 3041 is fixed on the ground in a deep and large foundation pit, the bottom of the damping spring 3043 is fixedly connected to the inner wall of the base housing 3041, a limiting plate 3042 is disposed on the top of the damping spring 3043, and the bottom end of the column body 301 sequentially passes through the base housing 3041 and the limiting plate 3042 from top to bottom and is movably sleeved with the damping spring 3043. The design is beneficial to further offsetting the vibration generated by the device during construction, and the construction safety is improved.

It should be understood that the examples and embodiments described herein are for illustrative purposes only and are not intended to limit the present invention, and that various modifications or changes in light thereof will be suggested to persons skilled in the art and are to be included within the spirit and purview of this application.

Claims

1. The utility model provides a whole bearing structure of circular big deep foundation ditch which characterized in that: the support comprises a first support member (1), more than one second support members (2) and reinforcing upright post members (3), wherein each second support member (2) is fixedly connected to the bottom of the first support member (1) through each reinforcing upright post member (3);

the first supporting member (1) comprises an annular crown beam (101), a first annular support (102) and a first reinforced concrete support (105), the annular crown beam (101) and the first annular support (102) are distributed in a concentric circle mode, and the first annular support (102) is fixedly connected with the inner periphery of the annular crown beam (101) through the first reinforced concrete support (105) distributed on the periphery in an annular mode;

the second support member (2) comprises an annular wale (201), a second annular support (202) and a second reinforced concrete support (204), the annular wale (201) and the second annular support (202) are distributed in a concentric circle mode, and the second annular support (202) is fixedly connected with the inner periphery of the annular wale (201) through the second reinforced concrete support (204) distributed in a peripheral annular mode;

the reinforced upright post member (3) comprises an upright post body (301), two damping hydraulic cylinder assemblies (303) and two shock absorption base assemblies (304), wherein the shock absorption base assemblies (304) are movably connected with the bottom end of the upright post body (301), the two damping hydraulic cylinder assemblies (303) are symmetrically hinged to two sides of the lower end of the upright post body (301), and the upright post body (301) is fixed with the ground in a deep and large foundation pit through the damping hydraulic cylinder assemblies (303) and the shock absorption base assemblies (304).

2. The integral supporting structure of the round deep and large foundation pit according to claim 1, wherein: the first supporting member (1) is fixed on the shallower inner side of a continuous wall of a deep and large foundation pit through the annular crown beam (101), the first annular support (102) is fixedly connected inside the annular crown beam (101) through the first reinforced concrete support (105) in a rebar planting connection mode, the inner diameter and the outer diameter of the first reinforced concrete support (105) are distributed in a triangular structure, the size of the annular crown beam (101) is 1000X1200mm, the size of the first annular support (102) is 1000X 2000mm, and the size of the first reinforced concrete support (105) is 800X 1000 mm.

3. The integral supporting structure of the round deep and large foundation pit according to claim 1, wherein: the number of the second supporting members (2) is determined according to the specific depth of a deep and large foundation pit, the second supporting members (2) are fixed on the deeper inner side of a continuous wall of the deep and large foundation pit through the annular waist beam (201), the second annular supports (202) are fixedly connected inside the annular waist beam (201) through the second reinforced concrete supports (204) in a rib planting connection mode, the inner diameter and the outer diameter of the second reinforced concrete supports (204) are distributed in a triangular structure, the size of the annular waist beam (201) is 1200 x 1400mm, the size of the second annular supports (202) is 1200 x 2500mm, and the size of the second reinforced concrete supports (204) is 1000x1200 mm.

4. The integral supporting structure of the round deep and large foundation pit as claimed in claim 1 or 2, wherein: the first supporting member (1) further comprises a temporary road beam (103), the temporary road beam (103) is transversely connected to the inner axis of the first annular support (102), a cover plate (104) is mounted on the top surface of the temporary road beam (103), the size of the temporary road beam (103) is 1000x 1000mm, and the cover plate (104) is formed by pouring 350mm thick concrete.

5. The integral supporting structure of the round deep and large foundation pit as claimed in claim 1 or 3, wherein: the second support member (2) further comprises a tie beam (203), the tie beam (203) being connected transversely at the inner axial center of the second ring support (202), and the tie beam (203) having dimensions of 800 x 900 mm.

6. The integral supporting structure of the round deep and large foundation pit according to claim 1, wherein: first mounting holes (106) are annularly distributed on the first annular support (102), second mounting holes (205) are annularly distributed on the second annular support (202), and elastic rubber pads are attached to the inner walls of the first mounting holes (106) and the second mounting holes (205).

7. The integral supporting structure of the round deep and large foundation pit as claimed in claim 6, wherein: the reinforcing upright post member (3) further comprises a plurality of sleeves (302), the sleeves (302) are respectively sleeved on the upright post body (301) at intervals, and the upright post body (301) vertically penetrates through the second mounting hole (205) and the first mounting hole (106) from bottom to top through the sleeves (302) and is fixedly connected with the second supporting member (2) and the first supporting member (1).

8. The integral supporting structure of the round deep and large foundation pit according to claim 1, wherein: the damping hydraulic cylinder assembly (303) comprises a piston rod (3032) and a cylinder body (3033), wherein the piston rod (3032) penetrates through the cylinder body (3033), and two ends of the piston rod (3032) fix the column body (301) and the ground in the deep foundation pit at an inclined angle through hinged parts (3031) arranged at two ends of the piston rod (3032).

9. The integral supporting structure of the round deep and large foundation pit according to claim 1, wherein: the damping base assembly (304) comprises a base shell (3041) and a damping spring (3043), the base shell (3041) is fixed on the ground in a deep foundation pit, the bottom of the damping spring (3043) is fixedly connected with the inner wall of the base shell (3041), a limiting plate (3042) is arranged at the top of the damping spring (3043), and the bottom end of the upright column body (301) sequentially penetrates through the base shell (3041) and the limiting plate (3042) from top to bottom and is movably sleeved with the damping spring (3043).