CN-122014973-A - Adaptable carrying device of pipe-piece type shaft wall rear grouting detection equipment

CN122014973ACN 122014973 ACN122014973 ACN 122014973ACN-122014973-A

Abstract

The invention discloses an adaptable carrying device of a duct-type shaft wall back grouting detection device. The utility model relates to tunnel and underground engineering technical field, aim at solving current nondestructive test equipment and segment type shaft scene suitability poor, current mode of carrying safety is low, detection efficiency is low and have the problem of blind area. The invention discloses an adaptable carrying device of a duct type shaft wall back grouting detection device, which comprises a lifting system, a circumferential traveling system and an attachment support system. The lifting system consists of a detachable threaded steel pipe, a driving motor and symmetrical rubber wheels, vertical movement is realized through friction driving, the annular traveling system is provided with traveling wheels and a limiting device, annular movement is realized, and the attachment support system adopts a jack and a steel sleeve ring, so that the detection equipment is tightly attached to a well wall. The device can flexibly lift and move in a circumferential direction, ensures that the detection equipment is stably attached to the well wall, and improves the detection efficiency and the safety.

Inventors

LI DONG
WANG GUODONG
ZHANG CHAO
CHENG XIAOQING
YAO ZHANHU
HUANG YU
HUANG DENGXIA
LI QIANG
CHEN LINCHENG
PENG LONGHUI
ZHANG SHAOFAN

Assignees

中交中南工程局有限公司

Dates

Publication Date: 20260512
Application Date: 20260302

Claims (7)

1. The adaptive carrying device of the pipe-piece type shaft wall back grouting detection equipment is characterized by comprising a lifting system, a circumferential traveling system (7) and an attachment support system; The lifting system is used for driving nondestructive testing equipment (6) to vertically move along a vertical shaft, and comprises a detachable threaded steel pipe (4), a rubber wheel driving motor (13) and at least two groups of symmetrically arranged rubber wheels (2), wherein the lower end of the detachable threaded steel pipe (4) is used for connecting the nondestructive testing equipment (6), the upper end of the detachable threaded steel pipe penetrates through the rubber wheels (2), the rubber wheel driving motor (13) drives the rubber wheels (2) to rotate, and the rubber wheels (2) are in compression contact with the detachable threaded steel pipe (4) and drive the detachable threaded steel pipe (4) to vertically lift through friction force; The annular traveling system (7) is used for driving the lifting system to move along the annular direction of the top of the vertical shaft segment (5), the annular traveling system (7) comprises a traveling device frame, a traveling wheel assembly arranged on the traveling device frame and a limiting device (9) used for limiting the transverse displacement of the traveling device frame, the traveling wheel assembly at least comprises a driving wheel (10) and a driven wheel (15), the driving wheel (10) is driven by a driving wheel driving motor (12), and the traveling device frame is arranged above the lifting system; The attachment support system is used for bearing nondestructive testing equipment (6) and enabling the nondestructive testing equipment to be attached to a shaft wall of a shaft, and comprises a jack (3) and a steel sleeve ring (16), wherein the steel sleeve ring (16) is sleeved on the detachable threaded steel pipe (4), and the jack (3) is arranged on the outer side of the steel sleeve ring (16) and used for applying thrust to the steel sleeve ring (16) to drive the nondestructive testing equipment (6) to be attached to the shaft wall of the shaft.
2. An adaptable mounting for a pipe-segment post-shaft wall grouting inspection device according to claim 1, wherein the lifting system further comprises a locking device and a motor moving rail (18) for preventing the detachable threaded steel pipes (4) from sliding down in a stationary state, wherein the locking device is adapted to provide a clamping force to move at least one rubber wheel (2) on the motor moving rail (18) by the rubber wheel driving motor (13) so that two sets of the rubber wheels (2) clamp the detachable threaded steel pipes (4).
3. An adaptable carrying device for a pipe-segment type post-shaft wall grouting detection device according to claim 1, wherein the lifting system further comprises a fall protection perforated pin (1) arranged on top of the removable threaded steel pipe (4) for secondarily locking the removable threaded steel pipe (4) when the lifting system stops operating.
4. The adaptive carrying device of the pipe-segment type shaft wall post-grouting detection equipment according to claim 1 is characterized in that the limiting device (9) comprises a limiting steel plate, a buffer spring (20), a limiting wheel (21), a screw rod (22) and a limiting nut (23), the screw rod (22) is arranged on the limiting steel plate in a penetrating mode, the limiting wheel (21) is fixed to one end of the screw rod (22) through the limiting nut (23), the buffer spring (20) is sleeved on the screw rod (22) and is located between the limiting nut (23) and the limiting steel plate, and the limiting wheel (21) is tightly attached to the side face of a pipe segment (5) through adjusting a nut (19) on the screw rod (22).
5. The adaptive carrying device of the pipe-segment type shaft wall post-grouting detection equipment according to claim 1, wherein the attachment support system further comprises a detachable screw rod, a fixed counterweight steel plate (8) and a pressure adjusting assembly, the upper end of the detachable screw rod is connected with the walking device frame, the lower end of the detachable screw rod is connected with the nondestructive detection equipment (6), the steel sleeve ring (16) is sleeved in the middle of the detachable screw rod, the fixed counterweight steel plate (8) is fixedly arranged at the bottom of the walking device frame and used for balancing reactive force generated when the jack (3) applies thrust, and the pressure adjusting assembly is used for controlling the lifting force of the jack (3).
6. An adaptable mounting for a pipe-segment post-shaft wall grouting inspection device according to claim 1, wherein the rubber wheel (2) applies positive pressure to the removable threaded steel pipe (4) The formula is satisfied: Wherein, the Is a nondestructive testing device (6) the weight of the self-weight, For detachably connecting the dead weight of each linear meter of the threaded steel pipe (4), For the maximum inspection depth of the shaft, Is the rolling friction coefficient between the rubber wheel (2) and the detachable threaded steel pipe (4).
7. An adaptable mounting for a segment post-shaft wall grouting testing device according to claim 1, wherein the contact pressure of the non-destructive testing device (6) with the shaft wall Lifting force with the jack (3) The formula is satisfied: Wherein, the Is the distance from the supporting point of the jack (3) to the bottom of the walking device frame, Is the distance from the supporting point of the jack (3) to the nondestructive testing equipment (6), Is an included angle between the jack (3) and the detachable threaded steel pipe (4).

Description

Adaptable carrying device of pipe-piece type shaft wall rear grouting detection equipment Technical Field The invention relates to the technical field of tunnels and underground engineering, in particular to an adaptable carrying device of a duct piece type shaft wall back grouting detection device. Background Along with the continuous promotion of the urban process, the development and utilization of the underground space are more and more advanced, and the sinking type vertical tunneling technology is more and more widely applied to projects such as urban subway shafts, comprehensive pipe gallery shafts, underground comprehensive body vertical passages and the like by virtue of the advantages of high construction efficiency, small interference to surrounding environments and the like. The vertical duct piece structure is used as a core stress and waterproof component of the sinking type vertical shaft, the post-wall grouting process is a key link for guaranteeing the structural stability and the seepage resistance of the vertical shaft, namely the post-wall grouting process can effectively fill a construction gap between the duct piece and a stratum, transfer vertical and lateral loads born by the duct piece, block a groundwater permeation channel, and further ensure the long-term safe operation and the functional integrity of the vertical shaft structure. However, the grouting process behind the duct-type shaft wall has extremely strong concealment, the filling state, compactness, cementing quality and the like of the slurry cannot be directly observed, and the grouting quality is influenced by various factors such as stratum conditions, slurry proportion, construction parameters and the like, so that the defects of cavity, incompact, poor cementing and the like are extremely easy to occur. If the defects are not found and treated in time, uneven stress of the duct piece can be caused, structural damage such as duct piece cracking and dislocation is caused, a waterproof barrier of a vertical shaft can be damaged, the problem of water leakage is caused, and safety accidents such as stratum settlement and collapse can be possibly induced when the defects are serious, so that the use function of a later-stage structure is affected, the maintenance and reinforcement cost is increased, and the safety of surrounding buildings and underground pipelines is even threatened. At present, the post-grouting quality detection of a duct-type shaft wall mainly depends on nondestructive detection methods such as an ultrasonic/impact elastic wave method and a geological radar method, and the like, and the nondestructive detection method has the advantages of non-destructiveness and higher detection efficiency, and is a preferred detection mode in the current engineering, but the core pain point is that the adaptive capacity of the conventional nondestructive detection equipment and a duct-type shaft scene is seriously insufficient, so that the advantages of the detection method cannot be exerted, and the requirements of engineering on accurate, efficient and comprehensive grouting quality are difficult to meet. The existing nondestructive testing equipment is of a general structure, special design is not carried out aiming at special scenes of a segment type vertical shaft, the vertical height of the vertical shaft, the segment curved surface structure, the high-altitude operation environment and other core scene characteristics cannot be adapted, so that detection operation can be realized only by matching with a specific carrying device, and the existing supporting carrying mode has obvious defects such as manual holding of a spider person, a conventional curved surface wall climbing robot and the like, and further the detection difficulty is further aggravated. The segment type vertical shaft scene has vivid particularity, namely the vertical shaft is of a vertical extending structure, the height of the vertical shaft can reach tens of meters, the operation space is narrow and is an overhead operation environment, the segment is of an arc-shaped curved surface structure, irregular parts such as joints and bolt bulges exist on the surface of the segment, dust, slurry and other impurities are attached to the surface of part of the segment, meanwhile, the inner wall of the vertical shaft needs to realize full-section dead-angle-free detection, and the requirements on the mobility flexibility and the stability of the carrying device are extremely high. The existing nondestructive testing equipment does not have the capability of adapting to special scenes, can not independently finish the testing operation, and has to rely on a carrying device to realize the fixation, movement and posture adjustment of the equipment, and the adaptation defect of the existing carrying mode is specifically expressed as follows: The manual handheld detection mode of spider men is essentially to complete the operation by manually carrying dete