CN215334882U - Foundation pit construction pipeline group in-situ protection system - Google Patents
Foundation pit construction pipeline group in-situ protection system Download PDFInfo
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- CN215334882U CN215334882U CN202120671625.6U CN202120671625U CN215334882U CN 215334882 U CN215334882 U CN 215334882U CN 202120671625 U CN202120671625 U CN 202120671625U CN 215334882 U CN215334882 U CN 215334882U
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Abstract
The utility model relates to the field of foundation pit construction pipeline protection, in particular to a foundation pit construction pipeline group in-situ protection system which comprises a pipeline support, a supporting platform, a support frame, a platform lifting device and a support column, wherein the pipeline support is arranged on the supporting platform, the pipeline support is provided with a pipeline stopper, the pipeline stopper is used for placing and fixing a pipeline, two ends of the support frame are respectively connected with the supporting platform and the platform lifting device, one end of the platform lifting device, far away from the support frame, is connected with the support column, the platform lifting device can adjust the height up and down, and the other end of the support column is arranged on the ground and is used for supporting the whole system; this implement novel effectively solved in the foundation ditch work progress, avoid the pipeline because of frequently changing the extension period of time, and frequently change and lead to the unstable business, resident's problem around influencing of circuit easily.
Description
Technical Field
The utility model relates to the field of foundation pit construction pipeline protection, in particular to an in-situ protection system for a foundation pit construction pipeline group.
Background
With the development of economy and science and technology, in the field of infrastructure engineering, underground spaces represented by subway construction are developed more and more widely in order to effectively utilize urban spaces and relieve ground traffic travel pressure. The station foundation pit can encounter a plurality of problems in the construction process, wherein the problems include pipeline protection, if the problems cannot be effectively solved, the progress of the project can be seriously slowed down, and the communication, water passing, power on and the like of nearby markets and residents can be possibly influenced.
At present, in the aspect of protecting municipal pipelines in foundation pit construction, the method commonly adopted by construction units is to replace the pipelines outside the excavation range of the foundation pit. The method can bring about multiple times of pipeline relocation, cause frequent pipeline interruption of water-electricity communication and the like, and the pipeline relocation needs to cut off the original pipeline and then connect another section of pipeline as a temporary pipeline, possibly causing the problem of disconnection at the pipeline splicing part due to poor interface quality.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an in-situ protection system for a foundation pit construction pipeline group, which is used for avoiding the problems that the construction period is prolonged due to frequent relocation of pipelines, and surrounding businesses and residents are influenced due to unstable circuits caused by frequent relocation.
In order to achieve the purpose, the utility model adopts the technical scheme that;
the utility model provides a foundation ditch construction pipeline crowd normal position protection system, includes pipeline support, supporting platform, support frame, platform elevating gear and support column, pipeline support locates supporting platform is last, pipeline support is equipped with the pipeline stopper, the pipeline stopper is used for placing and fixed pipeline, the support frame both ends respectively with supporting platform and platform elevating gear are connected, platform elevating gear keeps away from the one end of support frame with the support column is connected, height-adjusting about platform elevating gear can be, the support column other end is located subaerially and is used for playing the supporting role to entire system.
Further, platform elevating gear includes square cushion cap, connecting device, telescoping device and stiff end, the connecting device both ends respectively with square cushion cap and telescoping device one end are connected, the square cushion cap other end with supporting platform connects, the telescoping device is kept away from connecting device one end with the stiff end is connected, the stiff end with the support column is connected.
Further, the telescoping device includes carriage release lever, motor, solid fixed cylinder and unable adjustment base, the carriage release lever with gu fixed cylinder threaded connection and cover are established in the solid fixed cylinder, unable adjustment base with gu fixed cylinder rotates to be connected, unable adjustment base with support column fixed connection, the motor is located unable adjustment base is last, the motor output with gu fixed cylinder gear connection, the motor can drive gu fixed cylinder rotates.
Further, the pipeline bracket is of an upper layer profile steel structure and a lower layer profile steel structure, the pipeline bracket is provided with a plurality of accommodating spaces, a pipeline limiter is arranged in each accommodating space,
further, the pipeline stopper includes bed course and steel sheet metal, bed course and steel sheet metal all are equipped with convex recess and are used for wrapping up the pipeline, and bed course and steel sheet metal pass through the bolt mode to be fixed on the pipeline support.
Furthermore, the support frame includes horizontal short beam and vertical long beam, horizontal short beam is fixed to be located on the vertical long beam, horizontal short beam with bearing platform is connected, to bearing platform plays the supporting role, vertical long beam can with a plurality of platform elevating gear is connected.
Furthermore, the connecting device comprises a spherical part, a cap, a support and a bolt, one end of the spherical part is arranged on the support, the cap is connected with the spherical part through the bolt, and the spherical part can rotate on the support after the cap is connected with the support.
Furthermore, the support columns are cast-in-place concrete piles, two piles are transversely arranged in each group, and the piles are longitudinally and uniformly arranged along the pipeline direction according to a certain span.
Compared with the prior art, the utility model has the beneficial effects that:
the pipeline support is arranged, so that the pipeline can be well fixed relatively, the pipeline displacement is prevented, the platform lifting device is provided with the telescopic device, the lifting can be carried out within a certain range, the sinking of the pipeline part on the temporary supporting platform caused by construction settlement can be effectively counteracted, and the normal work of the gravity flow pipeline is prevented from being influenced. The utility model avoids the pipeline from being cut off through the in-situ protection of the pipeline group, can not influence the normal operation of commercial and residential areas around the construction, and adopts the concrete cast-in-place pile as the support of the whole device, thereby ensuring the stability and the durability of the device.
Drawings
FIG. 1 is a schematic cross-sectional view of an in-situ protection system for a foundation pit construction pipeline group.
FIG. 2 is a schematic longitudinal section view of an in-situ protection system for a foundation pit construction pipeline group.
Fig. 3 is a schematic structural view of the pipeline bracket 1.
Fig. 4 is a schematic view of a structure of the pipeline stopper.
Fig. 5 is a schematic view of the connecting device.
Fig. 6 is a schematic structural view of the lifting device.
The reference numbers illustrate:
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are 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 is to include three juxtapositions, exemplified by "A and/or B" including either scheme A, or scheme B, or a scheme in which both A and B are satisfied. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
Referring to fig. 1-3, a foundation pit construction pipeline group in-situ protection system includes a pipeline support 1, a supporting platform 2, a supporting frame 3, a platform lifting device 4 and a supporting column 5, wherein the pipeline support 1 is arranged on the supporting platform 1, the pipeline support 1 is provided with a plurality of pipeline limiters 13, the pipeline limiters 13 are used for placing and fixing pipelines, the pipeline limiters 13 are mutually independent and can be used for placing pipeline cables for communication, natural gas, electric power, water supply, sewage discharge, petroleum and the like. The supporting platform 2 is spliced by steel plates, is arranged along the whole length of the pipeline, is arranged below the pipeline support 1 and is used for supporting and fixing the pipeline support 1, and is mainly used for supporting gravity flow pipelines and facilitating pipeline maintenance. Two ends of the support frame 3 are respectively connected with the supporting platform 2 and the platform lifting device 4, one end, far away from the support frame 3, of the platform lifting device 4 is connected with the support column 5, the height of the platform lifting device 4 can be adjusted up and down, and the other end of the support column 5 is arranged on the ground and used for supporting the whole system. The support column 5 adopts a concrete filling pile, and each group of two piles transversely arranged support the platform lifting device 4 left and right, and are longitudinally and uniformly arranged along the pipeline direction according to a certain span.
Pipeline support 1 is upper and lower two-layer shaped steel structure, pipeline support is equipped with a plurality of accommodation space to be equipped with the pipeline stopper in every accommodation space, pipeline support 1 is upper and lower two-layer shaped steel structure, be angle steel 11 and T shape steel 12 including the part, use angle steel 11 as horizontal component, T shape steel 12 is as vertical atress component, and upper angle steel 11 adds the composite member of billet as the support of undertaking the second floor pipeline, and the angle steel 11 and the T shape steel 12 of each connection pass through bolted connection. The lower layer of the pipeline bracket 1 uses T-shaped steel 12 as a column, angle steel 11 combination as a beam, a column base is fixed on the supporting platform 2 through bolts by the aid of the angle steel 11, and flat steel bars are arranged at intervals along the pipeline direction to reinforce the pipeline in order to ensure the stability of the pipeline bracket 1. The angle steel 11 and the T-shaped steel 12 are combined to form a plurality of relatively independent accommodating spaces, and the accommodating spaces are provided with pipeline limiters 13.
The support frame 3 comprises a transverse short beam 31 and a longitudinal long beam 32, the transverse short beam 31 is used for supporting the pipeline bearing platform 2, and the function of the transverse short beam is to transmit the pipeline group load to the longitudinal long beam 32. The transverse short beam 31 is fixedly arranged on the longitudinal long beam 32, the transverse short beam 31 is connected with the supporting platform 2 and plays a role in supporting the supported platform, the longitudinal long beam 32 can be connected with the plurality of platform lifting devices 4, and bolt holes are preset in the transverse short beam 31 and the longitudinal long beam 32 for fixing the transverse short beam and the longitudinal long beam and the auxiliary structure of the transverse short beam. Specifically, the transverse short beams 31 are perpendicular to the pipeline and arranged at intervals along the pipeline direction, and mainly have the function of transmitting pipeline load to the longitudinal long beams 32, and the longitudinal long beams 32 bear load more than the transverse short beams 31 and have size more than the transverse short beams 31.
The platform lifting device 4 comprises a square bearing platform 41, a connecting device 42, a telescopic device 43 and a fixed end 44, wherein two ends of the connecting device 42 are respectively connected with one ends of the square bearing platform 41 and the telescopic device 43, the other end of the square bearing platform 41 is connected with the supporting platform 3, one end of the telescopic device 43, which is far away from the connecting device 42, is connected with the fixed end 44, and the fixed end 44 is connected with the supporting column 5. The square bearing platform 41 is a square steel plate with a certain thickness, is provided with a bolt hole for connecting the longitudinal long beam 32, is connected with the longitudinal long beam 32 in a bolt fixing mode, and is fixedly connected with the ball body part 421 in a welding mode. The fixed end 44 is a section of cylindrical steel sleeve and plays a role of the platform lifting device 4 by being sleeved at the top end of the support column 5
The telescopic device 43 comprises a moving rod 431, a motor 432, a fixed barrel 433 and a fixed base 434, wherein the moving rod 431 is in threaded connection with the fixed barrel 433 and is sleeved in the fixed barrel 433, and the moving rod 431 can be adjusted to move up and down by rotating the fixed barrel 433, so that the height of the supporting platform 2 can be adjusted. Unable adjustment base 434 states the solid fixed cylinder 433 and rotates the connection, unable adjustment base 434 and support column 5 fixed connection, and on unable adjustment base 434 was located to motor 432, gu the fixed cylinder 433 periphery was equipped with the gear, motor 432 output and solid fixed cylinder 433 gear drive were connected, and motor 432 can move solid fixed cylinder 433 and rotate. The motor 432 rotates to drive the fixed barrel 433 to rotate, so that the movable rod 431 moves up and down, and the motor 432 can control the working states of opening and closing in a wired or wireless mode.
The connecting device 42 includes a sphere portion 421, a cap 422, a support 423 and a bolt, one end of the sphere portion 421 is disposed on the support 423, the cap 422 is connected with the sphere portion 421 through the bolt, and after the cap 422 is connected with the support 423, the sphere portion 421 can rotate on the support 423. The square bearing platform 41 is connected with the telescopic device 43 through the connecting device 42, so that the influence of support column deflection on the stability of the supporting platform 2 caused by construction settlement can be effectively reduced.
The construction method of the in-situ protection system for the foundation pit construction pipeline group, which is disclosed by the utility model, is briefly described as follows, and specifically comprises the following main steps:
(1) the method comprises the steps of finding out the position of an underground pipeline group according to a city planning drawing, carrying out excavation by downward slope making, replacing manual excavation when the distance from the pipeline is about 50cm to avoid pipeline damage, stopping excavation after the pipeline is excavated to the top of a pipe, reserving an earth covering protection pipeline of 10cm, ensuring the width of a pit bottom to be 3.5m, and reserving enough space for the next work.
(2) Positioning the supporting piles, wherein the distance between every two adjacent piles is kept to be 2m in the transverse direction, the distance is 8m along the pipeline direction, and the pile diameter is 50 cm; drilling downwards by using a rotary machine to a certain distance below the designed elevation of the substrate, ensuring that the supporting pile can provide enough bearing capacity, avoiding overlarge local settlement caused by construction, and paying attention to the protection of pipeline groups in the whole drilling process; and after drilling, placing a reinforcement cage to pour concrete to a corresponding height of 70cm below the bottom of the lowest pipeline.
(3) After the concretion of the cast-in-place pile is finished, excavating soil between the longitudinal supporting piles at two sides of the pipeline, and excavating to a position 1.5m below the bottom of the lowest pipeline; one side close to the pipeline is used for temporary supporting and blocking by a steel plate and steel pipe structure, the bottom end of the steel pipe is inserted into the ground by 1m, the top ends of the steel pipes on two sides of the pipeline group are connected by a steel cable for temporary reinforcement, one side far away from the pipeline is used for slope excavation, and the bottom of a pit is ensured to have enough mounting operation width of the support frame 3.
(4) Cutting off a poor quality section of the pile top by 30cm, processing to ensure that the pile top is flat and smooth, and cleaning soil, water caltrops and the like around the pile body; and installing a lifting device, and sleeving a steel sleeve at the bottom of the device on the pile to ensure that the top of the device is horizontal and stable, wherein the inner diameter of the sleeve is 50cm, the thickness of a square bearing platform 41 is 2cm, and the size of the square bearing platform is 45cm multiplied by 55 cm.
(5) Two sections of longitudinal long beams 32 are sequentially hung to the pre-installation position by using a crane, one ends of the long beams are respectively fixed on the square bearing platform 41 by adopting 6 bolts, in the implementation, the total length of the longitudinal long beams 32 is 8m, the height of the I-shaped section is 30cm, the length of the upper wing plate is 14cm, the length of the lower wing plate is 20cm, and the thickness is 2 cm.
And excavating earth between the two longitudinal beams by adopting a manual excavation mode to the bottom surface of the pipeline at the lowest layer, and taking care of protecting the pipeline in the excavation process to avoid the pipeline from being damaged and finally completely expose the pipeline group.
(6) The pipelines are temporarily bound, then the pipeline group is temporarily hoisted in a mode of steel ropes and I-shaped steel beams every 1.6m, the bottom end of each pipeline is just in a state of leaving the bottom surface, and then 1m is continuously excavated downwards, so that enough short beam installation space is ensured.
(7) A first section of transverse short beam 31 is arranged on a support column 5 at the edge of a foundation pit, each end of the first section of transverse short beam is fixed by 8 bolts, the distance between the next section of short beam and the first section of short beam is 80cm, all the added short beams are arranged according to the distance of 1.6m, the total length of the transverse short beam 31 is 2.5m, the height of an I-shaped section is 15cm, the length of an upper wing plate is 8cm, the length of a lower wing plate is 12cm, the thickness of the transverse short beam is 1.5cm, and the two sides of the upper wing plate of each section of short beam are provided with 18 bolt 424 holes for fixing steel plates.
(8) And (3) finishing the laying of the supporting platform, wherein the length of a first steel plate of the platform is 2.6m, the first steel plate is laid on the two-span short beam close to the edge of the foundation pit, the short beam is fixed by using 18 bolts 424 at each section, and then the length of each steel plate is 3.2m, so that the two-span steel plate is ensured, for example, the thickness of the steel plate is 1cm, and the width of the steel plate is 2.5 m.
(9) The pipeline stopper 13 is installed at one section every 75cm, 3 stoppers are respectively arranged on each layer on the cross section, the length of the first stopper is 1.6m, the lengths of the following stoppers are respectively 4.8m and 3.2m in a staggered arrangement, the pipe is fixed once every 1.5m by using bolts, 3 bolts 424 are fixedly used every time, and the positions of the bolts are respectively located at the lowest point and two ends of the middle part of the groove of the stopper.
(10) The temporarily hoisted pipeline is put down, and the rest pipelines are hoisted after a layer of gravity flow pipeline is dismantled; the gravity flow pipelines are moved into the respective limiting device grooves respectively, and then the pipelines are fixed in the limiting grooves through the steel sheets through bolts, so that the pipelines are prevented from tilting upwards and sliding out of the limiting grooves. And finally, the pipeline is covered by tarpaulin, so that the pipeline is prevented from being aged and damaged due to wind and sunshine, and the normal work is prevented from being influenced by the interruption of the line.
(11) Dismantling the temporary I-shaped steel beam, continuously repeating the steps (3) to (11), when the longitudinal long beam 32 is installed in the step 5, additionally installing an auxiliary steel plate 321 on one finished side, and respectively connecting the web plate and the upper wing plate of the I-shaped long beam through the auxiliary steel plate to ensure the stability between adjacent spans, wherein the sizes of the auxiliary steel plates 321 are respectively 50 multiplied by 5cm and 50 multiplied by 20 cm; and so on, and the last section of short beam needs to be installed on the support column 5 of the last span close to the edge of the foundation pit.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (8)
1. The utility model provides a foundation ditch construction pipeline crowd normal position protection system which characterized in that: including pipeline bracket, supporting platform, support frame, platform elevating gear and support column, pipeline bracket locates supporting platform is last, pipeline bracket is equipped with the pipeline stopper, the pipeline stopper is used for placing and fixed pipeline, the support frame both ends respectively with supporting platform and platform elevating gear are connected, platform elevating gear keeps away from the one end of support frame with the support column is connected, height-adjusting about platform elevating gear can be, the support column other end is located subaerial being used for playing the supporting role to entire system.
2. The in-situ protection system for the foundation pit construction pipeline group according to claim 1, wherein: platform elevating gear includes square cushion cap, connecting device, telescoping device and stiff end, the connecting device both ends respectively with square cushion cap and telescoping device one end are connected, the square cushion cap other end with supporting platform connects, the telescoping device is kept away from connecting device one end with the stiff end is connected, the stiff end with the support column is connected.
3. The in-situ protection system for the foundation pit construction pipeline group according to claim 2, wherein: the telescopic device comprises a moving rod, a motor, a fixed cylinder and a fixed base, wherein the moving rod is in threaded connection with the fixed cylinder, the fixed cylinder is sleeved with the moving rod, the fixed base is in rotary connection with the fixed cylinder, the fixed base is in fixed connection with the support column, the motor is arranged on the fixed base, the motor is in gear connection with the fixed cylinder, and the motor can drive the fixed cylinder to rotate.
4. The in-situ protection system for the foundation pit construction pipeline group according to claim 1, wherein: the pipeline support is of an upper-layer profile steel structure and a lower-layer profile steel structure, the pipeline support is provided with a plurality of accommodating spaces, and a pipeline limiter is arranged in each accommodating space.
5. The in-situ protection system for the foundation pit construction pipeline group according to claim 1, wherein: the pipeline stopper comprises a cushion layer and a steel sheet, wherein the cushion layer and the steel sheet are provided with arc-shaped grooves for wrapping the pipeline, and the cushion layer and the steel sheet are fixed on the pipeline support in a bolt mode.
6. The in-situ protection system for the foundation pit construction pipeline group according to claim 1, wherein: the support frame includes horizontal short beam and vertical long beam, horizontal short beam is fixed to be located on the vertical long beam, horizontal short beam with bearing platform is connected, and is right to bearing platform plays the supporting role, vertical long beam can with a plurality of platform elevating gear is connected.
7. The in-situ protection system for the foundation pit construction pipeline group according to claim 2, wherein: the connecting device comprises a spherical part, a cap, a support and a bolt, one end of the spherical part is arranged on the support, the cap is connected with the spherical part through the bolt, and the spherical part can rotate on the support after the cap is connected with the support.
8. The in-situ protection system for the foundation pit construction pipeline group according to claim 1, wherein: the support column adopts the concrete bored concrete pile, and every group transversely arranges two piles, vertically evenly arranges along the pipeline direction according to certain span.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120671625.6U CN215334882U (en) | 2021-04-01 | 2021-04-01 | Foundation pit construction pipeline group in-situ protection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120671625.6U CN215334882U (en) | 2021-04-01 | 2021-04-01 | Foundation pit construction pipeline group in-situ protection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215334882U true CN215334882U (en) | 2021-12-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120671625.6U Active CN215334882U (en) | 2021-04-01 | 2021-04-01 | Foundation pit construction pipeline group in-situ protection system |
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| CN (1) | CN215334882U (en) |
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2021
- 2021-04-01 CN CN202120671625.6U patent/CN215334882U/en active Active
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