CN-121976545-A - Bridge bearing platform construction supporting device and method

CN121976545ACN 121976545 ACN121976545 ACN 121976545ACN-121976545-A

Abstract

The invention relates to the technical field of bridge bearing platform construction, and particularly discloses a bridge bearing platform construction supporting device and method, wherein the bridge bearing platform construction supporting device comprises a guide bracket, a bearing frame is slidably arranged on the guide bracket, a bearing rod is rotatably arranged on the bearing frame, and a bearing sleeve is rotatably arranged outside the bearing rod in a sliding manner; the bearing sleeve and the bearing rod are respectively provided with a first auxiliary piece and a second auxiliary piece; the first auxiliary piece is used for positioning when being matched with the inserted steel sheet pile, and the second auxiliary piece guides the steel sheet pile to be inserted; after the insertion is completed, the bearing sleeve is rotated to enable the first auxiliary piece to be separated from the inserted steel sheet pile and then slide, so that the first auxiliary piece is moved to a next position to be inserted and driven through the second auxiliary piece, the first auxiliary piece is switched to be a guiding function, and the second auxiliary piece is a positioning function.

Inventors

HE LIANG
YANG QIANCHENG
ZHANG YI
HUANG SHUIHUA
LIU KAIHUANG
Zhu Yizhang
Mo Xiuquan
CHEN ZHIPENG
YANG XINYU
Chen Panyang

Assignees

保利长大工程有限公司

Dates

Publication Date: 20260505
Application Date: 20260407

Claims (10)

1. A bridge bearing platform construction support device comprises a guide support fixed on the ground and is characterized in that a bearing frame is slidably assembled on the guide support along the length direction of the guide support, a bearing rod is rotatably assembled on the bearing frame, a bearing sleeve is rotatably arranged outside the bearing rod and slidably arranged on the bearing frame, two groups of connecting frames for connecting the bearing rod and the bearing sleeve are arranged between the bearing rod and the bearing sleeve, a first auxiliary piece and a second auxiliary piece are respectively arranged on the bearing sleeve and the bearing rod, the first auxiliary piece is used for positioning when being matched with an inserted steel sheet pile, the second auxiliary piece is used for guiding the inserted steel sheet pile, after the insertion is completed, the bearing sleeve is rotated to enable the first auxiliary piece to be separated from the inserted steel sheet pile, then the bearing sleeve is slid, the first auxiliary piece is moved to a next position to be inserted through the second auxiliary piece, the first auxiliary piece is switched to be a guiding function, and the second auxiliary piece is a positioning function.
2. The bridge deck construction support apparatus according to claim 1, wherein the length of the receiving bar is three times that of the receiving sleeve, and is divided into three sections including a front section, a middle section and a rear section in the axial direction, the second auxiliary member is disposed at the middle section of the receiving bar, the receiving sleeve is moved from the front section to the rear section through the middle section when the first auxiliary member is separated from the steel sheet pile and is required to be moved to the next steel sheet pile to be inserted, and the receiving bar is driven to be displaced by moving the receiving frame when the second auxiliary member is separated from the steel sheet pile and is required to be moved to the next steel sheet pile to be inserted, so that the receiving sleeve is positioned at the front section of the receiving bar again.
3. The bridge deck construction support device according to claim 2, wherein the first auxiliary member and the second auxiliary member have the same structure, the first auxiliary member comprises a connecting plate connected with the receiving sleeve and an auxiliary plate connected with the connecting plate, the auxiliary plate is positioned at one end of the connecting plate, which is far away from the receiving sleeve, the connecting plate and the auxiliary plate are respectively provided with two groups, the connecting plates are respectively in one-to-one correspondence with the two groups of receiving sleeves, the two groups of connecting plates are arranged to be different in length, so that when the connecting plate rotates to a horizontal position, the two auxiliary plates are respectively matched with the inner side and the outer side of the steel sheet pile, and the connecting plate in the second auxiliary member is connected with the receiving rod.
4. A bridge deck construction support according to claim 3 wherein the auxiliary plates are rotatably connected to the connection plates, torsion springs are provided between the auxiliary plates and the connection plates to connect the two plates, the torsion springs urge the upper ends of the auxiliary plates to deflect away from the other auxiliary plate, and the upper ends of the two auxiliary plates are maintained in an open state.
5. The bridge cap construction supporting device according to claim 3, wherein the first auxiliary members are arranged in two groups along the length direction of the receiving sleeve at intervals, the two groups of first auxiliary members are respectively in one-to-one correspondence with two adjacent steel sheet piles, and the same receiving sleeve is provided with a long connecting plate of one group of first auxiliary members and a short connecting plate of the other group of first auxiliary members.
6. The bridge cap construction support device according to claim 3, wherein the receiving sleeve is provided with a through groove penetrating along the sliding direction of the receiving sleeve, the through groove and the connecting plate on the receiving sleeve are located in the same plane, and when the receiving sleeve is moved, the receiving sleeve is rotated so that the through groove is axially aligned with the connecting plate on the receiving rod, and the receiving sleeve can avoid and cross the connecting plate on the receiving rod through the through groove when moving.
7. The bridge cap construction support device according to claim 6, wherein the front part and the rear part of the receiving rod are respectively provided with a clamping block, the inner wall of the receiving sleeve is provided with an annular clamping groove along the circumferential direction, the inner wall of the receiving sleeve is provided with a yielding groove in a penetrating way along the sliding direction, the yielding groove is communicated with the clamping groove, when the through groove rotates to be axially aligned with the connecting plate on the receiving rod, the yielding groove is synchronously axially aligned with the clamping block, so that the receiving sleeve can slide outside the clamping block under the yielding action of the yielding groove, when the receiving sleeve moves to the front part or the rear part of the receiving rod, the clamping block correspondingly enters the communicating part of the clamping groove and the yielding groove, and then the clamping block and the clamping groove can be buckled by rotating the receiving sleeve so as to fix the axial position of the receiving sleeve relative to the receiving rod.
8. The bridge bearing platform construction support device according to claim 7, wherein the outer side of the bearing sleeve is circumferentially provided with an annular groove, the connecting frame comprises a connecting part and two matching parts connected with the connecting part, the two matching parts are correspondingly arranged with the two groups of bearing sleeves, the matching parts are provided with arc grooves matched with the bearing sleeves, the inner wall of each arc groove is provided with a clamping strip, and the clamping strips are in running fit with the annular groove.
9. The bridge cap construction supporting device according to claim 7, wherein the supporting plates are arranged on two sides of the supporting frame, the supporting sleeve and the supporting rod are located between the two supporting plates, and the connecting plate is abutted with the supporting plates when rotating to the horizontal position.
10. A bridge cap construction method, using the bridge cap construction support device according to claim 8, comprising the steps of: S1, inserting steel sheet piles at appointed positions between guide brackets; S2, matching the auxiliary plate in the first auxiliary piece with the steel sheet pile, wherein the auxiliary plate in the second auxiliary piece is positioned at a position to be inserted and beaten; s3, inserting the steel sheet pile into the ground through the auxiliary plate in the second auxiliary piece; S4, rotating the bearing sleeve to enable the auxiliary plate in the first auxiliary piece to be separated from the steel sheet pile, then sliding the bearing sleeve, enabling the bearing rod to be static at the moment, and enabling the auxiliary plate in the first auxiliary piece to move to a next to-be-inserted position; S5, inserting the steel sheet pile into the ground through the auxiliary plate in the first auxiliary piece; s6, rotating the receiving rod to enable the auxiliary plate in the second auxiliary piece to be separated from the steel sheet pile, then sliding the receiving rod, enabling the receiving sleeve to be static at the moment, and enabling the auxiliary plate in the second auxiliary piece to move to a next to-be-inserted position; and S7, repeating the steps S3 to S6, and sequentially inserting a plurality of steel sheet piles into the ground.

Description

Bridge bearing platform construction supporting device and method Technical Field The invention relates to the technical field of bridge bearing platform construction, in particular to a bridge bearing platform construction supporting device and method. Background In order to ensure the construction safety of the bridge bearing platform, the foundation pit needs to be supported before construction. The core aims at preventing the instability and collapse of the side slope of the foundation pit, blocking water and soil from flowing into the foundation pit, realizing the dry land operation condition and ensuring the safety of the foundation pit and surrounding buildings. The concrete construction method comprises the following steps of inserting steel sheet piles along the periphery of a foundation pit of a bearing platform, mutually engaging and sequentially connecting pile bodies to finally form a closed and continuous steel sheet pile enclosure structure so as to meet foundation pit support and water stop requirements. The patent document with the bulletin number of CN113737790B discloses a synchronous construction method of bridge piles and steel sheet piles, which comprises the following steps of dividing the bridge piles into a plurality of bridge piles to be constructed and a plurality of constructed bridge piles, wherein the bridge piles to be constructed and the bridge piles to be constructed are distributed at intervals, shifting a drilling machine to one of the bridge piles to be constructed to construct the bridge piles, simultaneously, selecting one end with a preset distance from the bridge piles to be constructed as a steel sheet pile construction starting point, starting from the steel sheet pile construction starting point, and carrying out steel sheet pile construction within a preset range, and stopping construction when the steel sheet piles are not sunken due to boulders in the construction process, leaving the steel sheet piles at original positions, and continuing construction of the next steel sheet piles until the steel sheet piles within the preset distance from the steel sheet pile construction starting point are constructed. But the scheme also has the following problems that in the steel sheet pile inserting and driving construction process, uneven hardness of stratum geological conditions can directly lead to pile body soil penetration resistance distribution difference, and in addition, the inserting and driving guiding device is insufficient in positioning precision, uneven in impact force transmission, eccentric stress of the pile body and other multiple factors are superposed, so that the steel sheet pile perpendicularity exceeding standard and pile body deflection are extremely easy to be caused. The deviation can be accumulated and amplified gradually, so that the following sheet pile splicing alignment inaccuracy, the corner and the closure section are difficult to close smoothly, the locking port meshing compactness between the steel sheet piles can be damaged, the water-stopping and seepage-proofing effects of the foundation pit are obviously reduced, meanwhile, the whole stress performance and the whole rigidity of the enclosure structure can be weakened due to the fact that the pile body is inclined and the pile body is not smooth, the problems of uneven stress, overlarge deformation and the like are caused, and finally, the engineering construction quality and the construction efficiency are adversely affected. Disclosure of Invention The invention provides a bridge bearing platform construction supporting device and method, and aims to solve the problems that steel sheet piles are easy to deflect during insertion and driving in the related art, and further construction quality and construction efficiency are reduced. The invention provides a bridge bearing platform construction supporting device which comprises a guide support fixed on the ground, wherein a bearing frame is slidably assembled on the guide support along the length direction of the guide support, a bearing rod is rotatably assembled on the bearing frame, a bearing sleeve is rotatably arranged outside the bearing rod and slidably arranged on the bearing frame, two groups of connecting frames for connecting the bearing rod and the bearing sleeve are arranged between the bearing rod and the bearing sleeve, a first auxiliary piece and a second auxiliary piece are respectively arranged on the bearing sleeve and the bearing rod, the first auxiliary piece is used for positioning when being matched with a steel sheet pile to be inserted, the second auxiliary piece is used for guiding the steel sheet pile to be inserted, after the insertion is completed, the bearing sleeve is rotated to enable the first auxiliary piece to be separated from the steel sheet pile to be inserted, the bearing sleeve is slid, the first auxiliary piece is moved to a next position to be inserted through the second auxiliary piece, the