CN109736350B - Pipeline erection and guide system on foundation pit and construction method thereof - Google Patents
Pipeline erection and guide system on foundation pit and construction method thereof Download PDFInfo
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Abstract
The guide and transportation system comprises guide and transportation sliding devices symmetrically arranged at two sides of the pit edge of the foundation pit along the direction of the pipeline erection, two embedded pulleys in the extending direction of two end parts of a connecting line between the guide and transportation sliding devices, and a sealing rope wound with the two guide and transportation sliding devices and the two embedded pulleys; the guide and transport slider comprises a support frame and a supporting pulley block at the top of the support frame, and auxiliary positioning devices are arranged on two outer sides of the embedded pulley perpendicular to the pipeline layout direction. The invention realizes the rapid guiding and transporting of the pipeline by the arrangement of the guiding and transporting sliding tool during construction, the arrangement of the supporting pulley plays the role of supporting point or sliding of the rope in the circulating transportation, and the supporting frame plays the role of ensuring the required height during the guiding and transporting of the pipeline on one hand and providing the required supporting force for the guiding and transporting of the pipeline on the other hand; the embedded pulley not only ensures the wire-wrapping connection of the rope, but also can provide the power for the circulation of the rope during the pipeline transportation; the auxiliary positioning device can lock the rope for fixing when the rope is not circulated.
Description
Technical Field
The invention belongs to the field of pipe gallery pipeline engineering, and particularly relates to a foundation pit upper pipeline erection and transportation system and a construction method thereof.
Background
The utility tunnel is a tunnel space built underground, integrates various engineering pipelines such as electric power, communication, fuel gas, heat supply, water supply and drainage, is provided with a special access hole, a lifting hole and a monitoring system, implements unified planning, unified design, unified construction and management, and is an important infrastructure and a lifeline for guaranteeing urban operation. In the construction of underground pipe gallery
The foundation pit is required to be dug to lay the pipeline, so that the pipeline is required to be guided and tested to be erected and installed in the foundation pit once, but a great deal of labor is required to be consumed for guiding and transporting the pipeline in pipeline construction, if hoisting machinery is adopted, the pipeline cannot be transported in a time-saving and labor-saving manner due to the limitation of fields and cost, and therefore, a simple system for guiding and transporting the pipeline at the foundation pit and a construction method are required to be provided.
Disclosure of Invention
The invention provides a foundation pit upper pipeline erection and transportation system and a construction method thereof, which are used for solving the problem of quick pipeline erection and transportation in a foundation pit during pipe gallery construction, and the specific technical scheme is as follows:
a pipeline erection guide and transport system on a foundation pit comprises guide and transport sliders symmetrically arranged at two sides of the pit edge of the foundation pit along the pipeline erection direction, two embedded pulleys in the extending direction of two end parts of a connecting line between the guide and transport sliders, and a sealing rope wound with the two guide and transport sliders and the two embedded pulleys.
The guide and transport slider comprises a support frame and a supporting pulley block arranged at the top of the support frame; the supporting pulley block comprises two supporting pulleys which are arranged side by side, and the supporting pulleys are connected with the supporting frame through pulley clamps.
The support frame is a tripod, the tripod is composed of three rod pieces, wherein the cross sections of the bottom ends of the three rod pieces are distributed in an isosceles triangle shape, and the top ends of the three rod pieces are intersected at one point.
Auxiliary positioning devices are arranged on two outer sides of the embedded pulley perpendicular to the pipeline layout direction, and each auxiliary positioning device comprises a fixed ring and a fixed rope for connecting the fixed ring and the rope.
The fixed ring and the embedded pulley are connected with the ground through positioning plates, and the positioning plates are connected with a cast-in-situ foundation in the ground through ground anchors.
The fixing rope is connected with the fixing ring in a penetrating mode and is clamped on a rope between the supporting pulley and the embedded pulley through the chicken heart ring.
The rope is in a closed ring shape, sequentially passes through the embedded pulley on the side, one supporting pulley on the side guide and transport slider and one supporting pulley on the opposite side guide and transport slider, bypasses the embedded pulley on the opposite side, then passes through the other supporting pulley on the opposite side guide and transport slider, passes through the other supporting pulley on the side guide and transport slider, and finally is closed with the rope at the embedded pulley on the side.
At least two guide and transport sliding devices are symmetrically arranged on two sides of the foundation pit, and the guide and transport sliding devices on each side are arranged at intervals or side by side; the tops of the two guide and transport sliding devices arranged side by side are connected through a connecting plate, and the bottom ends of the two guide and transport sliding devices are fixed in the connecting frame; the connecting frame is a rectangular frame and is connected with the ground through a cast-in-situ foundation through bolts or is connected with the ground in advance.
The construction method of the pipeline erection and guide system on the foundation pit comprises the following specific steps:
step one, manufacturing a connecting frame, a connecting plate and a supporting frame, and selecting a supporting pulley, an embedded pulley, a fixing ring, a fixing rope and a rope according to the length and the weight of an erected pipeline; wherein, two rows of two supporting frames are connected in the connecting frame, and a connecting plate is connected at the top of the two supporting frames;
step two, digging a foundation pit at the supporting position of the supporting frame, the embedded pulley and the embedded position of the auxiliary positioning device, casting foundation concrete and the embedded ground anchor in situ, and completing maintenance;
step three, after detecting that the concrete foundation platform is completely solidified, paying off and positioning by using a theodolite, sequentially installing a connecting frame, a supporting frame, a connecting plate, pre-buried pulleys and an auxiliary positioning device, and installing supporting pulleys on the connecting plate;
step four, sequentially threading ropes, installing fixing ropes on the fixing rings, and installing the fixing ropes on the ropes through chicken heart rings;
step five, a pipeline is hung on one rope between the opposite guide and transport sliding tools, the heart-shaped ring is opened to loosen the fixed rope, and the embedded pulley is started to drive the other rope which is not hung on the pipeline between the guide and transport sliding tools to rotate, so that the pipeline which is linked to be hung on the rope slides to a designated position;
and step six, stopping the rotation of the embedded pulley when the pipeline reaches the designated position, closing the chicken heart ring, and binding the fixed rope so that the rope is not driven.
The anchoring force of the ground anchor is larger than the pulling force of the rope, and the bearing force of the rope is larger than the gravity of the hanging pipe line; the pipelines are respectively hung and protected when the classification is different; the warning mark is manufactured on the rope during daytime and nighttime installation, wherein five-color flags are uniformly arranged on the rope during daytime, and the color low-voltage LED waterproof lamp strip is installed at night.
The invention has the following beneficial effects:
the invention realizes the rapid guiding and transporting of the pipeline through the arrangement of the guiding and transporting sliding tool, wherein the arrangement of the supporting pulley plays a role of supporting point or sliding of the rope in the circulating transportation, and the supporting frame plays a role of ensuring the required height during the pipeline guiding and transporting and providing the required supporting force for the pipeline guiding and transporting; the arrangement of the connecting frame ensures the connection between the supporting frame and the ground foundation, and the connecting frame has the function of keeping the integrity when a plurality of supporting frames are connected; the embedded pulley not only ensures the wire-wrapping connection of the rope, but also can provide the power for the circulation of the rope during the pipeline transportation; the auxiliary positioning device can lock the rope for fixing when the rope is not circulated. When the invention is used for construction, the pipeline can be guided and transported only by being hung on one limb of rope, so that the labor is saved, the applied components are simple and easy to obtain, the installation is convenient, the repeated use is realized, the construction cost is greatly saved, and the construction working hours are ensured.
Drawings
FIG. 1 is a construction schematic diagram of a pipeline erection and transportation system on a foundation pit;
FIG. 2 is a top view of a pipeline erection and transportation system on a foundation pit;
FIG. 3 is a schematic view of a guide and transport slider;
FIG. 4 is a top view of a connection of a guide and transport slider structure;
FIG. 5 is a top view of a lead sled connection; the method comprises the steps of carrying out a first treatment on the surface of the
FIG. 6 is a diagram of a connection frame structure;
FIG. 7 is a schematic diagram of the connection of the embedded pulley and the auxiliary positioning device;
FIG. 8 is a top view of the connection of the embedded pulley and the auxiliary positioning device.
Reference numerals: 1-a foundation pit; 2-a guiding and transporting slider; 21-supporting pulleys; 22-pulley clamps; 23-supporting frames; 24-connecting plates; 3-embedding pulleys; 4-auxiliary positioning device; 41-a fixing ring; 42-fixing the cable; 5-rope; 6-an earth anchor; 7, positioning a plate; 8-connecting frame.
Detailed Description
Taking civil engineering of an airport as an example, there are a comprehensive pipe gallery No. 1 and a luggage pipe gallery No. 2, and an APM interval section of a station area is abbreviated as APM, and the APM is about 300m long; the lengths of the subway and the crossing tunnel are 982m, about 7.7 ten thousand square meters; the utility tunnel is about 3078m long; the utility tunnel has the forms of a single-bin structure, a two-bin structure, a three-bin structure and the like, and is mainly divided into a utility bin, a cold-hot bin, a fuel gas bin, a sewage bin, a rainwater bin and the like, and the depth of the foundation pit 1 is 8.1 m-13.55 m.
As shown in fig. 1 and 2, the foundation pit 1 of the present embodiment needs to be laid with a power line and a rainwater line, so that an on-foundation pit 1 pipeline erection and transportation system is needed for auxiliary installation, the on-foundation pit pipeline erection and transportation system includes two transportation pulleys 2 symmetrically arranged along the pipeline erection direction at both sides of the pit edge of the foundation pit 1, two embedded pulleys 3 in the extension direction of both ends of a connecting line between the transportation pulleys 2, and a sealing rope 5 wound around the two transportation pulleys 2 and the two embedded pulleys 3; the guide and transport slider 2 comprises a support frame 23 and a pulley block arranged at the top of the support frame 23; the supporting pulley block comprises two supporting pulleys 21 which are arranged side by side, and the supporting pulleys 21 are connected with a supporting frame 23 through pulley clamps 22; the support frame 23 is a steel tripod, the tripod is formed by welding three steel pipes, wherein the cross sections of the bottom ends of the three steel pipes are distributed in an isosceles triangle shape, the top ends of the three steel pipes are intersected at one point, a cableway pulley is welded at the top end of the tripod, and after the corrosion-resistant treatment is carried out on the processing welding part, red and white double-color marking paint is painted.
In this embodiment, two guiding and transporting slides 2 are symmetrically arranged at two sides of the foundation pit 1, and the guiding and transporting slides 2 at each side are arranged side by side, and because the two rows of pipelines of the electric power pipeline and the rainwater pipeline are laid together at this time, two guiding and transporting slides 2 are arranged side by side at each side; as shown in fig. 3 to 5, the tops of two guide and transport sliders 2 arranged side by side are connected by a connecting plate 24, and the bottom ends of the guide and transport sliders are fixed in a connecting frame 8; the connecting plate 24 is a steel strip plate or channel steel, as shown in fig. 6, the connecting frame 8 is a rectangular steel frame, is formed by welding the channel steel end to end, and is connected with the ground by bolts or pre-buried connection through a cast-in-place foundation.
As shown in fig. 7 and 8, auxiliary positioning devices 4 are disposed on two outer sides of the embedded pulley 3 perpendicular to the pipeline layout direction, the auxiliary positioning devices 4 include a fixing ring 41 and a fixing rope 42 connecting the fixing ring 41 and the rope 5, wherein the fixing ring 41 is a steel ring, and the fixing rope 42 is a steel wire rope; the fixed ring 41 and the embedded pulley 3 are connected with the ground through a positioning plate 7, the positioning plate 7 is a steel rectangular plate, and the positioning plate 7 is connected with a cast-in-situ foundation in the ground through a ground anchor 6; the fixing rope 42 is connected with the fixing ring 41 in a penetrating way and is clamped on the rope 5 between the supporting pulley 21 and the embedded pulley 3 through the chicken heart ring.
The ground anchors 6 and the guide and transport sliding tools 2 are formed by pouring concrete, and the concrete foundation platforms are formed by pouring concrete after large-scale machinery excavates foundation pits of 3m multiplied by 2m, wherein embedded parts which are processed in advance are placed in the foundations; the foundation pit is noted to be put on a slope to prevent collapse, maintenance is carried out regularly after concrete pouring, after the concrete foundation platform is detected to be completely solidified, the guide and transport sliding tool 2 and the ground anchor 6 are installed, the guide and transport sliding tool is used for paying off and positioning by using a theodolite, the guide and transport sliding tool is fixed on four sides by using expansion bolts with the length of 16# x 150mm, and the tension embedded parts of the ground anchor 6 on the two sides and a cableway support are in a straight line.
In this embodiment, the rope 5 is a closed loop steel wire rope, sequentially passes through the pre-buried pulley 3 on the side, one supporting pulley 21 on the guiding and transporting slider 2 on the opposite side, and one supporting pulley 21 on the guiding and transporting slider 2 on the opposite side, bypasses the pre-buried pulley 3 on the opposite side, then passes through the other supporting pulley 21 on the guiding and transporting slider 2 on the side, and finally is closed with the rope 5 at the pre-buried pulley 3 on the side.
In the embodiment, when the steel wire rope is fixedly connected by adopting rope clamps, the number of the rope clamps with the diameter of the steel wire rope is in accordance with the specified requirement, wherein the distance between the rope clamps is 6-7 times the diameter of the steel wire rope, and the length of the last rope clamp from the rope head is not smaller than 140mm; the rope clamp saddle clamping plate is arranged on one side of the steel wire rope under stress, and the U-shaped bolts are arranged at the tail end of the steel wire rope and cannot be staggered in the positive and negative directions; tightening again after the steel wire rope is stressed, and tightening to ensure that the diameter of the pressed part of the tail steel wire rope is flattened by 1/3; when the nominal diameter of the steel wire rope is smaller than 18mm, the number of rope clamps is at least 3; when the nominal diameter of the steel wire rope is not more than 18mm and less than 26mm, the number of rope clamps is at least 4; when the nominal diameter of the steel wire rope is not more than 26mm and less than 36mm, the number of rope clamps is at least 5; when the nominal diameter of the steel wire rope is not more than 36mm and less than 44mm, the number of rope clamps is at least 6; when the nominal diameter of the steel wire rope is not more than 44mm and less than 60mm, the number of rope clamps is at least 7.
In this embodiment, the anchoring force of the ground anchor 6 is greater than the tension of the rope 5, and the bearing force of the rope 5 is greater than the gravity of the hanging pipe line; the pipelines are respectively hung and protected when the classification is different; the warning mark is manufactured on the rope 5 during daytime and nighttime installation, wherein five-color flags are uniformly arranged on the rope 5 during daytime, and the color low-voltage strip-shaped LED waterproof lamp strip is installed at night.
Wherein, stride across APM piping lane cableway length to be 90 meters, through the calculation: PE water supply pipeline DN100 is filled with water, the dead weight of the water is 8 kg per meter, and the dead weight of the cable is 5.6 kg per meter; the dead weight of the 18# steel wire rope is 1.2 kg per meter; the load stress of the 18# steel wire rope is 7400 kg, and the tension of the 18 cubic ground anchor 6 is 48.6 tons; the dead weight of the ground anchor 6 is 48.6 tons, the safety load of the steel wire rope is 7400 kilograms, wherein the dead weight of the steel wire rope, the dead weight of the cable and the dead weight of the water pipe and the medium are 1.2×360+5.6× 180+8×90=2160 kilograms, and the dead weight of the steel wire rope, the dead weight of the cable, the dead weight of the water pipe and the dead weight of the medium are 2.16 tons.
Therefore, the dead weight of the ground anchor 6 is more than the dead weight of the steel wire rope, the dead weight of the cable and the dead weight of the water pipe and the medium, and is 22.5 times of the dead weight of the steel wire rope, the dead weight of the cable and the dead weight of the water pipe and the medium; the safety load of the steel wire rope is more than 3.43 times of the dead weight of the steel wire rope, the dead weight of the cable and the dead weight of the water pipe and the medium, and the safety load is calculated by the load: the cableway penetrating through the APM pipe gallery completely meets the laying requirements of water and electric pipelines.
Referring to fig. 1 to 8, a construction method of the pipeline erection and guide system on the foundation pit is further described, and specific steps are as follows:
step one, manufacturing a connecting frame 8, a connecting plate 24 and a supporting frame 23, and selecting a supporting pulley 21, an embedded pulley 3, a fixed ring 41, a fixed rope 42 and a rope 5 according to the length and the weight of an erected pipeline; wherein two rows of two support frames 23 are to be connected within the connecting frame 8 and a connecting plate 24 is to be connected at the top of the two support frames 23.
And secondly, digging a foundation pit at the position where the support frame 23 is erected, the embedded pulley 3 and the auxiliary positioning device 4 are embedded, casting foundation concrete and the embedded ground anchor 6 in situ, and completing maintenance.
And thirdly, after the concrete foundation platform is detected to be completely solidified, paying off and positioning by using a theodolite, sequentially installing the connecting frame 8, the supporting frame 23 and the connecting plate 24, pre-burying the pulley 3 and the auxiliary positioning device 4, and installing the supporting pulley 21 on the connecting plate 24.
Step four, sequentially threading the ropes 5, installing the fixing ropes 42 on the fixing rings 41, and installing the fixing ropes 42 on the ropes 5 through chicken heart rings.
Step five, a pipeline is hung on one rope 5 between the opposite guide and transport sliding tools 2, a heart ring is opened to loosen the fixed rope 42, and the embedded pulley 3 is started to drive the other rope 5 which is not hung on the pipeline between the guide and transport sliding tools 2 to rotate, so that the pipeline which is linked and hung on the rope 5 slides to a designated position;
and step six, stopping the rotation of the embedded pulley 3 when the pipeline reaches the designated position, closing the chicken heart ring, and binding the fixed rope 42 so that the rope 5 is not driven.
It is to be understood that the above examples are presented solely for the purpose of clearly illustrating the salient features of the present invention and are not intended to limit the scope of the present invention; other variations and modifications of the present invention will be apparent to those of skill in the art, and it is intended to cover all such modifications and variations of this invention without departing from the scope of the invention as defined by the appended claims.
Claims (6)
1. The utility model provides a pipeline erects guide fortune system on foundation ditch which characterized in that: the device comprises guide and transport sliding tools (2) symmetrically arranged at two sides of the pit edge of the foundation pit (1) along the erection direction of a pipeline, two embedded pulleys (3) in the extension direction of two end parts of a connecting line between the guide and transport sliding tools (2), and a sealing rope (5) which is wound and connected with the two guide and transport sliding tools (2) and the two embedded pulleys (3);
the guide and transport slider (2) comprises a support frame (23) and a pulley block arranged at the top of the support frame; the supporting pulley block comprises two supporting pulleys (21) which are arranged side by side, and the supporting pulleys (21) are connected with a supporting frame (23) through pulley clamps (22);
auxiliary positioning devices (4) are arranged on two outer sides of the embedded pulley (3) perpendicular to the pipeline arrangement direction, and each auxiliary positioning device (4) comprises a fixed ring (41) and a fixed rope (42) for connecting the fixed ring (41) with the rope (5);
the fixed ring (41) and the embedded pulley (3) are connected with the ground through a positioning plate (7), and the positioning plate (7) is connected with a cast-in-situ foundation in the ground through a ground anchor (6);
the rope (5) is in a closed ring shape, sequentially passes through the embedded pulley (3) on the side, one supporting pulley (21) on the guide and transport slider (2) on the opposite side and one supporting pulley (21) on the guide and transport slider (2) on the opposite side, bypasses the embedded pulley (3) on the opposite side and then passes through the other supporting pulley (21) on the guide and transport slider (2) on the opposite side, and finally is closed with the rope (5) at the embedded pulley (3) on the opposite side.
2. The foundation pit pipeline installation and transportation system according to claim 1, wherein: the support frame (23) is a tripod, and the tripod is composed of three rod pieces, wherein the cross sections of the bottom ends of the three rod pieces are distributed in an isosceles triangle, and the top ends of the three rod pieces are intersected at one point.
3. The foundation pit pipeline installation and transportation system according to claim 1, wherein: the fixing rope (42) is connected with the fixing ring (41) in a penetrating mode and is clamped on the rope (5) between the supporting pulley (21) and the embedded pulley (3) through the chicken heart ring.
4. The foundation pit pipeline installation and transportation system according to claim 1, wherein: at least two guide and transport sliding devices (2) are symmetrically arranged on two sides of the foundation pit (1), and the guide and transport sliding devices (2) on each side are arranged at intervals or side by side; the tops of the two guide and transport sliding devices (2) arranged side by side are connected through a connecting plate (24), and the bottom ends of the two guide and transport sliding devices are fixed in a connecting frame (8); the connecting frame (8) is a rectangular frame and is connected with the ground through a cast-in-situ foundation by bolts or is connected with the ground in advance.
5. A method of constructing a pipeline-on-pit construction and transportation system according to any one of claims 1 to 4, comprising the steps of:
step one, manufacturing a connecting frame (8), a connecting plate (24) and a supporting frame (23), and selecting a supporting pulley (21), an embedded pulley (3), a fixing ring (41), a fixing rope (42) and a rope (5) according to the length and the weight of an erected pipeline; wherein, two double rows of supporting frames (23) are connected in the connecting frame (8), and a connecting plate (24) is connected at the top of the two supporting frames (23);
step two, digging a foundation pit at the position where the support frame (23) is erected, the embedded pulley (3) and the auxiliary positioning device (4) are embedded, casting foundation concrete and the embedded ground anchor (6) in situ, and completing maintenance;
thirdly, after the concrete foundation platform is detected to be completely solidified, paying off and positioning are carried out by using a theodolite, a connecting frame (8), a supporting frame (23) and a connecting plate (24), a pre-buried pulley (3) and an auxiliary positioning device (4) are sequentially installed, and a supporting pulley (21) is installed on the connecting plate (24);
step four, sequentially threading ropes (5), installing fixing ropes (42) on the fixing rings (41), and installing the fixing ropes (42) on the ropes (5) through chicken heart rings;
step five, a pipeline is hung on one rope (5) between the opposite guide and transport sliding tools (2), a heart ring is opened to loosen a fixing rope (42), and a pre-buried pulley (3) is started to drive the other rope (5) which is not hung on the pipeline between the guide and transport sliding tools (2) to rotate, so that the pipeline which is linked and hung on the pipeline slides to a designated position on the rope (5);
and step six, stopping the rotation of the embedded pulley (3) when the pipeline reaches the designated position, closing the chicken heart ring, and binding the fixed rope (42) so that the rope (5) is not driven.
6. The construction method of the foundation pit pipeline erection and guide system, as set forth in claim 5, is characterized in that: the anchoring force of the ground anchor (6) is larger than the tensile force of the rope (5), and the bearing capacity of the rope (5) is larger than the gravity of the hanging pipe line; the pipelines are respectively hung and protected when the classification is different; the warning mark is manufactured on the rope (5) during daytime and nighttime installation, wherein five-color flags are uniformly arranged on the rope (5) during daytime, and the colored low-voltage strip-shaped LED waterproof lamp strip is installed at night.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910133044.4A CN109736350B (en) | 2019-02-22 | 2019-02-22 | Pipeline erection and guide system on foundation pit and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910133044.4A CN109736350B (en) | 2019-02-22 | 2019-02-22 | Pipeline erection and guide system on foundation pit and construction method thereof |
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| CN109736350B true CN109736350B (en) | 2023-09-22 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101025317B1 (en) * | 2010-12-09 | 2011-03-29 | 고엄식 | Apparatus for forming underground dome concrete structure and constructing method using the same |
| CN107792790A (en) * | 2017-10-16 | 2018-03-13 | 中国化学工程第十四建设有限公司 | Installation and application for the aerial cableway of mountain region construction material transport |
| CN208074267U (en) * | 2018-03-23 | 2018-11-09 | 中国十七冶集团有限公司 | A kind of hanging bracing means of Urban Underground pipe gallery excavation pit gut line |
| CN209741909U (en) * | 2019-02-22 | 2019-12-06 | 北京城建集团有限责任公司 | pipeline erects guided transport system on foundation ditch |
-
2019
- 2019-02-22 CN CN201910133044.4A patent/CN109736350B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101025317B1 (en) * | 2010-12-09 | 2011-03-29 | 고엄식 | Apparatus for forming underground dome concrete structure and constructing method using the same |
| CN107792790A (en) * | 2017-10-16 | 2018-03-13 | 中国化学工程第十四建设有限公司 | Installation and application for the aerial cableway of mountain region construction material transport |
| CN208074267U (en) * | 2018-03-23 | 2018-11-09 | 中国十七冶集团有限公司 | A kind of hanging bracing means of Urban Underground pipe gallery excavation pit gut line |
| CN209741909U (en) * | 2019-02-22 | 2019-12-06 | 北京城建集团有限责任公司 | pipeline erects guided transport system on foundation ditch |
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