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CN-121976571-A - Anti-floating reinforcement structure of operation station and construction method

CN121976571ACN 121976571 ACN121976571 ACN 121976571ACN-121976571-A

Abstract

The invention discloses an anti-floating reinforcement structure of an operation station and a construction method, belonging to the technical field of underground engineering; the construction method comprises the steps of setting a construction enclosure, a water retaining wall, a station side wall with a breaking range, a fender post structure, a temporary combination anti-floating member, a rubber water stop bar and an I-steel temporary support, wherein a reinforcement cage of the temporary combination anti-floating member is in anchored connection with a main reinforcement of the fender post and a reinforcement bar of a side wall of a main body structure to form a cooperatively stressed anti-floating system, setting the construction enclosure and the water retaining wall, setting grouting pipes for water stopping, exploring holes for verification, breaking the station side wall by sections, erecting the I-steel, plugging the rubber water stop bar, breaking the fender post structure, binding the reinforcement cage, and pouring concrete to finish the construction. The invention establishes reliable connection between the main body structure of the station and the enclosure structure, reduces the floating risk caused by the rising of underground water, reduces the influence of surface enclosure and traffic untwining during the whole-process construction in the station, and reduces the influence on the top pipeline of the station.

Inventors

  • ZHANG XIXUN
  • ZHANG CHUNLEI
  • ZHANG PENG
  • ZHANG JIAWEI
  • ZHANG CHENMING

Assignees

  • 中国铁路设计集团有限公司

Dates

Publication Date
20260505
Application Date
20260209

Claims (10)

  1. 1. An operation station anti-floating reinforcement structure is characterized by comprising: The station side wall (3) is a part of the existing station main body structure, the vertical range of the station side wall is flexibly adjusted according to the current pipeline arrangement, and a breaking range is formed on the station side wall (3); the fender post structure (4) is arranged at the outer side of the station side wall (3), and the fender post structure (4) comprises fender post main ribs (11) and fender post spiral stirrups (12); the permanent combined anti-floating member (5) is arranged between the breaking range of the station side wall (3) and the fender pile structure (4); the permanent-face combined anti-floating member (5) comprises a permanent-face combined anti-floating member steel bar cage (14), and the permanent-face combined anti-floating member steel bar cage (14) is connected with the main reinforcement (11) of the fender post and the side wall steel bars (9) of the main structure in the side wall (3) of the station in an anchoring manner to form a cooperatively stressed anti-floating system.
  2. 2. The floating reinforcement structure of an operation station according to claim 1, wherein the breaking range comprises a first station side wall breaking range (16), a second station side wall breaking range (17), a third station side wall breaking range (18) and a fourth station side wall breaking range (19).
  3. 3. The anti-floating reinforcement structure of the operation station according to claim 1, wherein a rubber water stop strip (10) is arranged between the breaking range of the station side wall (3) and the fender pile structure (4), and the rubber water stop strip (10) is used for preventing the diving in a soil layer from flowing into the existing station.
  4. 4. The anti-floating reinforcement structure of the operation station according to claim 1, wherein I-steel (15) is erected in a breaking range of the station side wall (3) and poured into the permanent combined anti-floating member (5).
  5. 5. The anti-floating reinforcement structure of an operation station according to claim 1, wherein the permanent-face combined anti-floating member reinforcement cage (14) comprises reinforcement bars anchored into the fender pile structure (4), and stirrups of the reinforcement bars are in an opening form and are used for being inserted into the fender pile main reinforcement (11).
  6. 6. The anti-floating reinforcement structure of an operation station according to claim 1, wherein the permanent combined anti-floating member (5) is in the form of a cast-in-place concrete member or the permanent combined anti-floating member (5) is in the form of a high-performance prefabricated shell (20) combined with cast-in-place concrete.
  7. 7. An operation station anti-floating reinforcement structure according to claim 1, wherein the fender pile spiral stirrup (12) is aligned with the breaking range.
  8. 8. The anti-floating reinforcement structure of the operation station according to claim 1, wherein a rubber water stop strip (10) is arranged in a breaking range, and the rubber water stop strip (10) is used for stopping water between the station side wall (3) and the permanent combined anti-floating member (5).
  9. 9. The construction method of the anti-floating reinforcement structure of the operation station of claim 1, comprising the following steps: A. Preparing construction and protecting the inside and outside of the station side wall (3); B. verifying a local water stopping effect, and breaking an existing structure in the range of the station side wall (3); C. carrying out waterproof treatment on the station side wall (3) and the fender post structure (4) in the breaking range; D. the permanent-facing combination anti-floating member (5) between the side wall (3) of the construction station and the guard pile structure (4) realizes the anti-floating reinforcement of the operation station.
  10. 10. The construction method of the anti-floating reinforcement structure of the operation station according to claim 9, wherein the construction method is characterized in that a permanent combined anti-floating member (5) between the side wall (3) of the operation station and the guard pile structure (4) is constructed in the step D, and the anti-floating reinforcement of the operation station is realized, and the concrete process is as follows: Firstly, breaking a fender post structure (4) with partial depth, and carding fender post main ribs (11); Then binding a permanent combined anti-floating member reinforcement cage (14), and anchoring and connecting the permanent combined anti-floating member reinforcement cage (14) with the fender pile main rib (11); Then, anchoring and connecting the permanent combined anti-floating member reinforcement cage (14) with the side wall reinforcement (9) of the main structure; And finally, pouring concrete of the permanent-temporary-combination anti-floating member (5) to finish construction.

Description

Anti-floating reinforcement structure of operation station and construction method Technical Field The invention belongs to the technical field of underground engineering, and particularly relates to an anti-floating reinforcement structure of an operation station and a construction method. Background With the protection of underground water resource exploitation, part of urban underground water is effectively supplemented, and the underground water level rises year by year, so that the underground water level of part of urban subway stations is higher than the anti-floating waterproof level in the design period, and the subway structure faces the floating risk and is threatened in structural safety. The invention aims to provide an anti-floating reinforcement structure of an operation station and a construction method, wherein an anti-floating member is permanently combined through in-station construction, a member range can be flexibly set in the station according to the anti-floating requirement of the station, a station main body structure without anti-floating measures is connected with an enclosure structure, the anti-floating resistance of the station structure is effectively increased, the floating risk of the operation station caused by rising of underground water is reduced, meanwhile, the problems of construction enclosure and traffic untwining caused by constructing the anti-floating member on the ground surface are effectively avoided, the influence on the top pipeline of the operation station is reduced, and the anti-floating reinforcement structure has wider application prospect and higher popularization value. Disclosure of Invention The invention provides an anti-floating reinforcement structure for an operation station and a construction method thereof, aiming at solving the problems existing in the prior art. The technical scheme of the invention is that the anti-floating reinforcement structure of the operation station comprises the following components: The station side wall is a part of the existing station main body structure, the vertical range of the station side wall can be flexibly adjusted according to the current pipeline arrangement, and a breaking range is formed on the station side wall; the fender post structure is arranged on the outer side of the station side wall and comprises fender post main reinforcements and fender post spiral stirrups; the permanent combined anti-floating member is arranged between the breaking range of the station side wall and the fender pile structure; the permanent-face combined anti-floating member comprises a permanent-face combined anti-floating member steel bar cage, and the permanent-face combined anti-floating member steel bar cage is connected with the main reinforcement of the fender pile and the side wall steel bars of the main structure in the side wall of the station in an anchoring manner to form a cooperatively stressed anti-floating system. Further, the breaking range includes a first station side wall breaking range, a second station side wall breaking range, a third station side wall breaking range and a fourth station side wall breaking range. Furthermore, a rubber water stop strip is arranged between the breaking range of the station side wall and the fender post structure and used for preventing the soil layer from diving into the existing station. Furthermore, I-steel is erected in the station side wall breaking range and poured into the permanent combined anti-floating member. Furthermore, the permanent-face combined anti-floating member reinforcement cage comprises reinforcement bars anchored into the fender pile structure, and stirrups of the reinforcement bars are in an opening form and are used for being inserted into the fender pile main reinforcement. Furthermore, the permanent-face combined anti-floating component is in the form of a cast-in-place concrete component or is in the form of a high-performance prefabricated shell combined with cast-in-place concrete. Further, the fender post spiral stirrup is aligned with the breaking range. Furthermore, a rubber water stop strip is arranged in the breaking range, and is used for stopping water between the station side wall and the permanent combined anti-floating component. The construction method of the anti-floating reinforcement structure of the operation station comprises the following steps: A. preparing construction and protecting the inside and outside of the side wall of the station; B. verifying a local water stopping effect, and breaking an existing structure in the range of the side wall of the driving station; C. Carrying out waterproof treatment on the side wall and fender post structure of the station in the breaking range; D. the permanent-facing combined anti-floating member between the side wall of the construction station and the guard pile structure realizes the anti-floating reinforcement of the operation station. Furthermore, the step D is to construct