CN220336890U - Vertical shaft transverse passage combined structure for deep-buried risk source reinforcement and shield overhaul - Google Patents
Vertical shaft transverse passage combined structure for deep-buried risk source reinforcement and shield overhaul Download PDFInfo
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- CN220336890U CN220336890U CN202320843169.8U CN202320843169U CN220336890U CN 220336890 U CN220336890 U CN 220336890U CN 202320843169 U CN202320843169 U CN 202320843169U CN 220336890 U CN220336890 U CN 220336890U
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- 238000010276 construction Methods 0.000 claims abstract description 94
- 238000012423 maintenance Methods 0.000 claims description 24
- 230000008439 repair process Effects 0.000 claims description 16
- 230000003014 reinforcing effect Effects 0.000 claims description 15
- 238000000034 method Methods 0.000 description 22
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- 230000009286 beneficial effect Effects 0.000 description 2
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- 238000011084 recovery Methods 0.000 description 2
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- 238000009423 ventilation Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
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Abstract
The utility model provides a vertical shaft transverse passage combined structure for deep-buried risk source reinforcement and shield overhaul, which comprises the following components: a vertical shaft is longitudinally positioned between the risk source and the shield overhaul area and transversely deviates to one side of the shield tunnel; one end of the transverse channel is communicated with the vertical shaft; the system comprises a longitudinal risk source reinforcement transverse channel, wherein one end of the longitudinal risk source reinforcement transverse channel is communicated with the transverse channel, and the other end of the longitudinal risk source reinforcement transverse channel extends towards the risk source; and one end of the longitudinal shield overhaul transverse passage is communicated with the transverse passage, and the other end extends to the shield overhaul area. According to the vertical shaft transverse channel combined structure, construction requirements of two aspects of risk source reinforcement and shield overhaul are comprehensively considered, so that grouting reinforcement and shield cutter overhaul operation of the existing risk source can be simultaneously carried out, the construction period can be saved, the construction efficiency can be improved, the construction potential safety hazard can be reduced, and the smooth operation of engineering can be ensured.
Description
Technical Field
The utility model relates to the technical field of shield construction, in particular to a vertical shaft transverse passage combined structure for reinforcing a deep buried risk source and overhauling a shield.
Background
In shield construction for performing underground engineering operations in soft soil and soft rock formations (silt, earth, pebbles, etc.), there are many construction risks. The current classification modes of shield construction risk are as follows: classification according to the reasons of accidents, classification according to the results caused by the accidents, classification according to the prediction capability of people and classification according to the working procedures of shield construction. Among the second category, damage to existing tunnels, existing underground pipelines, existing building structure foundations, and the like is included. If related measures are not taken for the risk sources, the risk sources may cause serious casualties and property loss. To reduce the extent to which these existing structures are affected, construction personnel typically employ reinforcement. The most common mode of reinforcement is grouting, when the depth of burial of a risk source structure is shallow, grouting can be carried out from the ground to an underground structure, when the depth of burial of the risk source structure is deep, the mode of ground grouting cannot be adopted, and only a vertical shaft can be excavated to a designated position, and then grouting reinforcement in a hole is carried out.
The shield tunneling machine drives the cutterhead to rotationally cut and excavate the surface soil layer by means of a motor. In the shield construction, the cutter is reasonably selected and maintained to determine the quality and progress of the shield tunneling project, if the cutter cannot be found and replaced in time, other cutter abrasion can be accelerated, and the cutter abrasion of the shield machine becomes a key problem affecting the project quality. Therefore, the shield construction process needs to pay attention to the abrasion condition of the cutterhead and timely overhaul and tool changing.
Therefore, in the shield construction, the possible risk source needs to be reinforced in time, and shield maintenance is also needed at the same time, namely, the situation that the risk source overlaps with the position of a tool changing (maintenance) well sometimes occurs, namely, the risk source is reinforced at the target position, the maintenance well is excavated, if the risk source and the tool changing (maintenance) well share the same shaft, construction conflict is caused (as shown in fig. 3, according to the prior engineering case, the construction operation (1) and the construction operation (2) are in conflict with each other); if the construction is carried out separately, two shafts are excavated, so that the problems of cost waste, construction period delay, instability and the like caused by interaction of shaft structures are easily caused.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the utility model provides the vertical shaft transverse channel combined structure for the deep-buried risk source reinforcement and the shield maintenance, which comprehensively considers the construction requirements of the risk source reinforcement and the shield maintenance, can reduce the engineering quantity, save the construction period, improve the construction efficiency and reduce the construction potential safety hazard.
(II) technical scheme
In order to achieve the above purpose, the utility model is realized by the following technical scheme:
a vertical shaft horizontal channel integrated configuration that is used for buried risk source reinforcement and shield to overhaul simultaneously, risk source and shield overhaul district all are located the shield tunnel, include:
a vertical shaft is longitudinally positioned between the risk source and the shield overhaul area and transversely deviates to one side of the shield tunnel;
one end of the transverse cross passage is communicated with the vertical shaft, and transversely extends from the vertical shaft to a position between the risk source and the shield overhaul area, and the other end of the transverse cross passage at least extends to the position of the shield tunnel;
the shield tunnel is positioned at one side of the transverse channel, one end of the longitudinal risk source reinforcing transverse channel is communicated with the transverse channel, and the other end extends towards the risk source;
and one end of the longitudinal shield overhaul transverse channel is communicated with the transverse channel, and the other end extends to the shield overhaul area.
In some embodiments, the risk source includes an existing tunnel, an existing underground conduit, and/or an existing building structure foundation.
In some embodiments, the shaft is remote from the risk source in both the longitudinal and transverse directions and is located outside the coverage area of the risk source and shield repair area in the transverse direction.
In some embodiments, the shield repair area is excavated at the other end of the longitudinal shield repair transverse channel for constructors to perform shield cutter head cutter repair and maintenance.
In some embodiments, further comprising: and excavating the other end of the longitudinal risk source reinforcement transverse channel in the risk source reinforcement construction operation area for construction personnel to perform risk source reinforcement construction operation.
In some embodiments, the risk source reinforcement construction work zone is proximate to or below the risk source.
In some embodiments, the cross-sectional dimension of the longitudinal source of risk reinforcement cross-channel and/or the longitudinal shield repair cross-channel is smaller than the cross-sectional dimension of the cross-sectional channel.
(III) beneficial effects
The utility model discloses a vertical shaft transverse channel combined structure for deep-buried risk source reinforcement and shield overhaul, which can reduce the engineering quantity, save the construction period, improve the construction efficiency and reduce the construction potential safety hazard. Specifically, it has at least the following beneficial effects:
according to the vertical shaft transverse passage combined structure for reinforcing the deep-buried risk source and overhauling the shield, the vertical shaft is excavated between the risk source and the overhauling area of the shield in the longitudinal direction, and the vertical shaft is far away from the shield tunnel, so that the safety of excavation construction of the vertical shaft is ensured, and meanwhile, disturbance to the risk source is avoided.
According to the vertical shaft transverse channel combined structure for deep-buried risk source reinforcement and shield overhaul, provided by the utility model, under the condition that only one vertical shaft is excavated, the existing risk source reinforcement and shield overhaul operation can be simultaneously carried out, the construction time is saved, and the smooth operation of engineering is ensured.
According to the vertical shaft transverse passage combined structure for reinforcing the deep-buried risk source and overhauling the shield, the vertical shaft is not constructed on the shield tunnel between the risk source and the overhauling area of the shield, but is deflected to one side of the shield tunnel in the transverse direction, compared with the traditional vertical shaft which is excavated on the shield tunnel, the vertical shaft is far away from the risk source and the position of the overhauling area of the shield, the influence on the risk source and the overhauling area of the shield is small, the vertical shaft is safer, and the safety of construction operation is guaranteed.
According to the vertical shaft transverse channel combined structure for reinforcing the deep-buried risk source and overhauling the shield, the vertical shaft is not constructed on the shield tunnel between the risk source and the shield overhauling area, but is deflected to one side of the shield tunnel in the transverse direction, the shield can pass through the transverse channel only by partially backfilling after the shield gap is finished, normal crossing of the shield is ensured, vertical shaft backfilling is avoided, and the normal crossing of the shield is not influenced.
In view of the fact that the vertical shaft is not constructed on the shield tunnel any more, the selection of the position of the vertical shaft is more random and is not strictly restricted any more. For example, when the maintenance area is in a busy urban area, a suitable position can be found to serve as a vertical shaft, and the floor area is occupied as little as possible.
It should be understood that the implementation of any of the embodiments of the utility model is not intended to simultaneously possess or achieve some or all of the above-described benefits.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It will be apparent to those of ordinary skill in the art that the drawings in the following description are exemplary only and that other implementations can be obtained from the extensions of the drawings provided without inventive effort.
The structures, proportions, sizes, etc. shown in the present specification are shown only for the purposes of illustration and description, and are not intended to limit the scope of the utility model, which is defined by the claims, but rather by the claims.
Fig. 1 is a schematic plan view of a shaft transverse channel combined structure according to an embodiment of the present utility model;
FIG. 2 is a schematic overall flow chart of a construction method according to an embodiment of the present utility model;
fig. 3 is a schematic plan view of a risk source and shield repair area construction conflict.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the embodiments of the present utility model will be described in further detail with reference to the embodiments and the accompanying drawings. The exemplary embodiments of the present utility model and their descriptions herein are for the purpose of explaining the present utility model, but are not to be construed as limiting the utility model.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
It should be understood that the terms "comprises/comprising," "consists of … …," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a product, apparatus, process, or method that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such product, apparatus, process, or method as desired. Without further limitation, an element defined by the phrases "comprising/including … …," "consisting of … …," and the like, does not exclude the presence of other like elements in a product, apparatus, process, or method that includes the element.
It is further understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship based on that shown in the drawings, merely to facilitate describing the present utility model and to simplify the description, and do not indicate or imply that the devices, components, or structures referred to must have a particular orientation, be configured or operated in a particular orientation, and are not to be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In actual shield construction, sometimes an underground risk source is encountered, and the risk source comprises an existing tunnel, an existing underground pipeline, an existing building structure foundation and the like. When the risk sources are positioned on the shield tunnel, if related measures are not taken for the risk sources, the risk sources can cause serious casualties and property loss. In the existing construction process, in order to reduce the influence degree of shield construction on the existing structures, constructors usually adopt a reinforcing mode. The most common reinforcement mode is grouting, and when the depth of a risk source structure is shallow, grouting can be performed from the ground to the underground. When the risk source structure is buried deeply, for example, the depth is consistent with or close to that of the shield tunnel, the ground grouting mode cannot be adopted, and only a vertical shaft can be excavated to a designated position, and then grouting reinforcement in the tunnel is carried out. At this time, the risk source reinforcement is required to be carried out at the target position, and the inspection well is required to be excavated, if the risk source reinforcement and the inspection well share the same vertical shaft, construction conflict can be caused (as shown in fig. 3, according to the prior engineering case, the construction operation (1) and the construction operation (2) are carried out to conflict with each other); if the construction is carried out separately, two shafts are excavated, so that the problems of cost waste, construction period delay, instability and the like caused by interaction of shaft structures are easily caused.
Therefore, the utility model provides the vertical shaft transverse channel combined structure for the deep-buried risk source reinforcement and the shield overhaul, which can finish the deep-buried risk source reinforcement and the shield overhaul operation at the same time, shorten the construction period, save the cost and ensure the smooth progress of the engineering.
In order to better understand the above technical solution, the following detailed description will refer to the accompanying drawings and specific embodiments.
With continued reference to fig. 1, the vertical shaft transverse passage combined structure provided by the utility model is simultaneously used for reinforcing a deep buried risk source and overhauling a shield, and comprises the following components: a vertical shaft is longitudinally positioned between the risk source and the shield overhaul area and transversely deviates to one side of the shield tunnel; one end of the transverse cross passage is communicated with the vertical shaft, and extends transversely from the vertical shaft to the space between the risk source and the shield overhaul area, and the other end of the transverse cross passage at least extends to the position of the shield tunnel; the system comprises a longitudinal risk source reinforcement transverse channel and a risk source reinforcement construction operation area, wherein the longitudinal risk source reinforcement transverse channel is positioned on one side of the transverse channel on a shield tunnel, one end of the longitudinal risk source reinforcement transverse channel is communicated with the transverse channel, the other end of the longitudinal risk source reinforcement transverse channel is communicated with the risk source reinforcement construction operation area, and the risk source reinforcement construction operation area is used for a constructor to perform risk source reinforcement construction operation; the device comprises a longitudinal shield overhaul transverse channel and a shield overhaul region, wherein the other side of the transverse channel is positioned on a shield tunnel, one end of the longitudinal shield overhaul transverse channel is communicated with the transverse channel, the other end of the longitudinal shield overhaul transverse channel is communicated with the shield overhaul region, and the shield overhaul region is used for carrying out maintenance on a cutter of a shield cutter head by constructors.
Because the risk source and the shield overhaul area are both positioned on the shield tunnel, if the shield tunnel between the risk source and the shield overhaul area is constructed by the vertical shaft, the excavation engineering quantity of the transverse passage is minimum, but the requirement of shield construction can be met by backfilling or fully reinforcing the vertical shaft in the later period when the subsequent shield construction is carried out, thus wasting funds and construction period, and if the transverse passage is constructed by beating the vertical shaft aside, the shield can be ensured to normally traverse by only partially backfilling the transverse passage. The present utility model therefore selects the construction zone to be longitudinally between the source of risk and the shield repair zone, laterally offset to one of the sides of the shield tunnel, as to the right in fig. 1.
By means of the arrangement of the transverse cross channel, as the vertical shaft is deflected to one side of the shield tunnel in the transverse direction, the vertical shaft cannot affect the risk source and the shield maintenance area, so that the shield maintenance area can be arranged closer to the position of the risk source as much as possible, and the shortest shield maintenance cross channel can be excavated to complete the reinforcement of the risk source and the shield maintenance simultaneously. The transverse channel plays a role in communicating a risk source to strengthen a construction operation area and a shield overhaul area.
Referring to fig. 1, the construction area is far away from the risk source in the longitudinal direction and the transverse direction, and is located outside the coverage areas of the risk source and the shield overhaul area in the transverse direction, so as to avoid or reduce the disturbance influence on the risk source structure caused by subsequent excavation shafts as much as possible. Specifically, how far away from the ground, the construction unit is combined with factors such as shield excavation diameter, shaft excavation diameter, surrounding environment of the ground surface, underground pipelines and the like. The construction area is located laterally outside the coverage area of the risk source and the shield repair area, i.e. the shaft is located outside the coverage area of the risk source and the shield repair area.
At the position far away from the existing structure, the vertical shaft is excavated in a construction area to clean underground sediment or silt, and a platform is built for the subsequent construction operation and is also an air supply vent.
The shield repair area is also positioned on the shield tunnel, is a working area for a constructor to repair and maintain the shield cutterhead cutter, and is used for repairing and replacing the shield cutterhead cutter when the subsequent shield construction reaches the position.
The longitudinal risk source reinforcing transverse channel provides a channel for conveying equipment and materials for grouting reinforcing operation of the existing risk source.
The longitudinal shield overhauling transverse channel provides a channel for conveying equipment and materials for cutter changing (overhauling) operation of a shield cutter head cutter.
The utility model further comprises a risk source reinforcement construction operation area which is excavated at the other end of the longitudinal risk source reinforcement transverse channel and is close to the risk source for constructors to carry out risk source reinforcement construction operation. The risk source reinforcement construction operation area (grouting area) is located at a corresponding position where the risk source is located, for example, below an existing tunnel, an existing underground pipeline, an existing building structure foundation and the like, and is an operation area for grouting reinforcement for constructors.
According to the utility model, the cross section size of the longitudinal risk source reinforcement transverse channel and/or the longitudinal shield overhaul transverse channel is smaller than that of the transverse channel, so that the excavation engineering quantity of the longitudinal risk source reinforcement transverse channel and/or the longitudinal shield overhaul transverse channel is reduced, the requirement of passing personnel and construction equipment is met, and the backfilling is still needed in the follow-up process.
Referring to fig. 2, the construction process of the shaft transverse passage combined structure adopting the utility model is as follows:
ascertaining the position of a risk source, designing a shield overhaul region, wherein the risk source and the shield overhaul region are both positioned on a shield tunnel;
selecting a construction area on the ground based on construction site conditions, wherein the construction area is longitudinally positioned between a risk source and a shield overhaul area and transversely deviates to one side of a shield tunnel;
excavating a vertical shaft in a construction area;
constructing a transverse channel from the vertical shaft to a position between the risk source and the shield overhaul area in the transverse direction, and constructing the transverse channel at least to the position of the shield tunnel;
constructing a longitudinal risk source reinforcing transverse channel and a longitudinal shield maintenance transverse channel to the risk source and the shield maintenance area respectively by the transverse channel;
and carrying out risk source reinforcement construction operation by the longitudinal risk source reinforcement transverse channel, and carrying out shield maintenance by the longitudinal shield maintenance transverse channel.
According to the utility model, the construction transverse cross channel, the construction longitudinal risk source reinforcement cross channel and the longitudinal shield overhaul cross channel are constructed by adopting a step method, and core soil is reserved in the construction process of the step method, so that the influence on the structure and the ground surface caused by overlarge stratum settlement in the excavation process is prevented. During the construction of the transverse channel, good ventilation in the hole is ensured, and fresh air is conveyed by the ventilator and the ventilation pipeline in the vertical shaft field region.
In the utility model, the risk source reinforcement is reinforcement by grouting, in particular to formation reinforcement by deep hole grouting.
In the utility model, after the reinforcement of the risk source and the maintenance of the shield are completed, backfilling construction is further carried out, and earth backfilling is carried out in the longitudinal risk source reinforcement transverse channel. And after the longitudinal risk source reinforcement transverse channel is backfilled, reserving the longitudinal shield overhaul transverse channel for continuous propelling of a subsequent shield machine. Therefore, the shield can be ensured to normally pass through only by backfilling the longitudinal risk source reinforcing transverse channel, the longitudinal shield maintenance transverse channel is not required to be backfilled, the backfilling of a vertical shaft is not required, the engineering quantity is reduced, the normal pass through of the shield is ensured, and the construction efficiency is improved.
Of course, the backfilling needs to be carried out on the risk source reinforcement construction operation area at the end of the longitudinal risk source reinforcement transverse channel.
Engineering application:
bovine street station to financial street station section, the right line section has a starting and stopping mileage of K41+720.402 to K43+604.139, the right line total length 1883.737m, the left line section has a starting and stopping mileage of K41+720.402 to K43+604.139, and the left line section has a total length 1883.854m (including long chain 0.117 m). And (3) penetrating through a section from the line 1 re-emerging gate station to the western single station underground excavation section of the subway, carrying out shield overhaul before crossing, and grouting and reinforcing soil under the section of the existing line 1.
And combining the surrounding environment of the lower penetrating segment, selecting a construction area in the southeast quadrant greenbelt of the intersection of the main street in the recovery gate and the main street in the downtown city, setting a vertical shaft, constructing a transverse passage and a shield maintenance area, and overhauling a cutter disc of the shield machine before the lower penetrating No. 1 line recovery gate station-western single station interval. The construction is carried out by adopting a deep hole grouting reinforcement mine method, the size of a vertical shaft is 6.2m multiplied by 4.4m (length multiplied by width), the depth is 21.24m, and the construction is carried out by adopting a reverse hanging well wall method; the external dimensions of the grouting reinforcement transverse channel are 4.1m multiplied by 3.6m (width multiplied by height), 4.1m multiplied by 4.6m (width multiplied by height) and 5.6m multiplied by 4.1m (width multiplied by height), and the construction is performed by adopting a step method. The outer contour dimensions of the shield overhaul transverse channel are 3.1m multiplied by 3.1m (width multiplied by height), 3.1m multiplied by 4.3m (width multiplied by height) and 3.6m multiplied by 3.1m (width multiplied by height), and the shield overhaul transverse channel is constructed by adopting a step method.
1. Construction of vertical shaft
The shaft construction comprises shaft locking collar beam excavation, shotcrete support, locking collar beam steel bar binding, concrete pouring and the like.
2. Risk source grouting reinforcement
In order to control the sedimentation of the underground pipeline, the surface sedimentation value, the pipeline sedimentation value, the in-hole arch top sedimentation and the structure convergence value are controlled within the allowable range, the safety of the pipeline and the structure is ensured, and deep hole grouting is adopted for stratum reinforcement. And (3) performing pre-grouting reinforcement on the stratum around the primary support structure to form partial reinforcement rings, so that disturbance of the primary support structure construction on the peripheral pipeline is reduced, and the effect of controlling sedimentation and deformation of the peripheral pipeline is achieved.
The longitudinal length of deep hole grouting is 12m, a double-pipe back-type grouting process is adopted, 4 angles are adopted for continuous grouting in each hole, the circumferential spacing of grouting holes is 900mm, and the planned grouting diffusion radius is 600mm. Grouting parameters are determined according to the field test conditions, monitoring and measurement are enhanced, and damage to the existing building (construction) is avoided.
In order to prevent the occurrence of slurry mixing, grouting is performed by adopting measures such as hole separation grouting or hole jump distance increase. Before the formal grouting construction, 1-2 holes are adopted for grouting experiments, grouting parameters are checked and adjusted, and the mixing ratio and pressure of the slurry are adjusted in time to ensure that a good grouting effect is achieved.
3. Earthwork backfill
And after the maintenance of the shield cutterhead is completed, performing an earthwork backfilling procedure, and backfilling the well-graded broken stone fine sand. After the grouting reinforcement transverse channel is backfilled, the shield maintenance transverse channel is reserved and used for continuous propelling of a subsequent shield machine.
4. Application benefit
By adopting the construction process between the cattle street station and the financial street station, the shield cutter head tool maintenance work is smoothly carried out while the risk source is reinforced, so that the cost waste is avoided, the construction efficiency is improved, the construction period is saved, the construction safety is ensured, and the construction method has good social benefit.
The foregoing description of embodiments of the utility model has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the various embodiments described. The terminology used herein was chosen in order to best explain the principles of the embodiments, the practical application, or the technical improvements in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.
While several specific implementation details are included in the above discussion, these should not be construed as limiting the scope of the utility model. Certain features that are described in the context of separate embodiments can also be implemented in combination in a single implementation. Conversely, various features that are described in the context of a single implementation can also be implemented in multiple implementations separately or in any suitable subcombination.
Claims (6)
1. A horizontal passageway integrated configuration of shaft that is used for buried risk source reinforcement and shield to overhaul simultaneously, risk source and shield examine and repair the district and all be located the shield tunnel, its characterized in that includes:
a vertical shaft is longitudinally positioned between the risk source and the shield overhaul area and transversely deviates to one side of the shield tunnel; the vertical shaft is far away from the risk source in the longitudinal direction and the transverse direction, and is located outside the coverage areas of the risk source and the shield overhaul area in the transverse direction;
one end of the transverse cross passage is communicated with the vertical shaft, and transversely extends from the vertical shaft to a position between the risk source and the shield overhaul area, and the other end of the transverse cross passage at least extends to the position of the shield tunnel;
the shield tunnel is positioned at one side of the transverse channel, one end of the longitudinal risk source reinforcing transverse channel is communicated with the transverse channel, and the other end extends towards the risk source;
and one end of the longitudinal shield overhaul transverse channel is communicated with the transverse channel, and the other end extends to the shield overhaul area.
2. The hoistway cross-aisle assembly structure of claim 1, wherein the risk source includes an existing tunnel, an existing underground duct, and/or an existing building structure foundation.
3. The shaft cross passage combination structure according to claim 1, wherein the shield repair area is excavated at the other end of the longitudinal shield repair cross passage for construction personnel to perform shield cutter head cutter repair and maintenance.
4. The hoistway cross passage assembly structure of claim 1, further comprising: and excavating the other end of the longitudinal risk source reinforcement transverse channel in the risk source reinforcement construction operation area for construction personnel to perform risk source reinforcement construction operation.
5. The hoistway cross-aisle assembly structure of claim 4, wherein the risk source reinforcement construction work zone is adjacent to or below the risk source.
6. The shaft cross passage assembly structure according to claim 1, wherein the cross-sectional dimension of the longitudinal risk source reinforcing cross passage and/or the longitudinal shield repair cross passage is smaller than the cross-sectional dimension of the cross-sectional passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320843169.8U CN220336890U (en) | 2023-04-17 | 2023-04-17 | Vertical shaft transverse passage combined structure for deep-buried risk source reinforcement and shield overhaul |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320843169.8U CN220336890U (en) | 2023-04-17 | 2023-04-17 | Vertical shaft transverse passage combined structure for deep-buried risk source reinforcement and shield overhaul |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220336890U true CN220336890U (en) | 2024-01-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320843169.8U Active CN220336890U (en) | 2023-04-17 | 2023-04-17 | Vertical shaft transverse passage combined structure for deep-buried risk source reinforcement and shield overhaul |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220336890U (en) |
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2023
- 2023-04-17 CN CN202320843169.8U patent/CN220336890U/en active Active
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