CN-121976530-A - Hydraulic splitting and breaking construction device and technology for built-in composite sleeve of pile head

CN121976530ACN 121976530 ACN121976530 ACN 121976530ACN-121976530-A

Abstract

The invention discloses a hydraulic splitting and breaking construction device and a hydraulic splitting and breaking construction process for a built-in composite sleeve of a pile head, which relate to the technical field of building construction and comprise a cast-in-place pile body and a cast-in-place pile head, wherein the cast-in-place pile head is detachably arranged at the top end of the cast-in-place pile body through a splitting steel wedge, an annular groove is formed at the pile head of the cast-in-place pile body and the cast-in-place pile head at the positions with elevations, a hydraulic breaking mechanism for limiting the movement of the splitting steel wedge is further arranged on the cast-in-place pile head through assembly screws, pile body main ribs are arranged on the cast-in-place pile body and the cast-in-place pile head in an axial direction, PVC sleeves are sleeved at one ends of the pile body main ribs in the cast-in-place pile head, pile body broken pile holes circumferentially distributed around the annular groove are formed on the cast-in-place pile body, and when the pile body is used, the pile body broken pile holes and the pile head broken pile holes and the split steel wedges are blocked and positioned in the pile body are omitted in the prior art.

Inventors

SHI TIWEI
HAN YONGZHAO
MENG LEI
NI ZHIXIAN
WEN ZHIYING
LI ZHANZHAO
MA QIANG
YANG ZHE
WANG FEI

Assignees

新疆北方建设集团有限公司

Dates

Publication Date: 20260505
Application Date: 20260228

Claims (9)

1. The hydraulic splitting and breaking construction device for the composite sleeve arranged in the pile head is characterized by comprising a cast-in-place pile body (1) and a cast-in-place pile head (2), wherein the cast-in-place pile head (2) is detachably arranged at the top end of the cast-in-place pile body (1) through a splitting steel wedge (3), an annular groove (11) is formed in the pile head (1) and the cast-in-place pile head (2) at the elevation, a hydraulic breaking mechanism (4) for limiting the splitting steel wedge (3) to move is further arranged on the cast-in-place pile head (2) through an assembly screw (5), pile body main ribs (6) are arranged in the axial directions of the cast-in-place pile body (1) and the cast-in-place pile head (2), and PVC sleeves (61) are sleeved at one ends of the pile body main ribs (6) in the cast-in-place pile head (2); Pile body breaking pile holes (12) circumferentially distributed around the annular groove (11) are formed in the cast-in-place pile body (1), pile body clamping blocks (121) and butt joint holes (13) corresponding to the pile body breaking pile holes (12) are also circumferentially distributed around the cast-in-place pile body (1), the butt joint holes (13) are located at one end, close to the cast-in-place pile head (2), of the cast-in-place pile body (1), and the pile body breaking pile holes (12) and the butt joint holes (13) are correspondingly arranged; The utility model discloses a pile structure, including pile body, pile head, split end, pile head (2) external fixation has rings (21) that are used for hoisting, the bottom of pile head (2) is equipped with split end (22) with pile body (1) top looks adaptation, one end fixed mounting that split end (22) extends to in pile body (1) has reinforcing ring hoop (221), split end (22) are equipped with pile head broken pile hole (222) and pile head locking piece (223) corresponding with pile body broken pile hole (12) along its circumference respectively, just in one end of pile head locking piece (223) extends to butt joint hole (13), one end that split steel wedge (3) passed pile body broken pile hole (12) is located pile head broken pile hole (222), and links to each other with reinforcing ring hoop (221) butt.
2. The pile head built-in composite sleeve hydraulic fracturing and breaking construction device according to claim 1, wherein a first clamping groove (31) and a second clamping groove (32) which are matched with a pile head locking block (223) and a pile body clamping block (121) are respectively formed in the fracturing steel wedge (3), the pile head locking block (223) is in an inverted U shape and is provided with a through groove for the fracturing steel wedge (3) to pass through, and the fracturing steel wedge (3) is installed in a pile body breaking hole (12) and a pile head breaking hole (222) which are mutually overlapped through the clamping of the first clamping groove (31) and the pile head locking block (223) and the clamping of the second clamping groove (32) and the pile body clamping block (121).
3. The hydraulic splitting and breaking construction device for the built-in composite sleeve of the pile head according to claim 2, wherein a limiting wedge surface (33) is formed at one end of the splitting steel wedge (3) outside the pile body breaking hole (12), an anti-falling protrusion (331) integrally formed with the splitting steel wedge (3) is fixedly arranged on the limiting wedge surface (33), and the anti-falling protrusion (331) is located outside the pile body breaking hole (12) and is connected with the outer wall of the cast-in-place pile body (1) in an abutting mode.
4. The hydraulic splitting and breaking construction device for the pile head built-in composite sleeve according to claim 1, wherein the hydraulic splitting and breaking mechanism (4) comprises an assembly end (23) fixedly installed at one end, far away from the splitting end (22), of the cast-in-place pile head (2), and the assembly end (23) is provided with an assembly screw hole (231) in threaded fit connection with an assembly screw (5) along the circumferential direction of the assembly end.
5. The pile head built-in composite sleeve hydraulic splitting breaking construction device according to claim 1, characterized in that the hydraulic breaking mechanism (4) comprises a hydraulic seat (41) sleeved outside the cast-in-place pile head (2), the hydraulic seat (41) is detachably mounted on the splitting end (22) through an assembly screw (5) penetrating through an assembly screw hole (231), a traction sliding seat (421) driven by a hydraulic breaking push rod (42) is further arranged in the hydraulic seat (41) and above the splitting end (22), and splitting clamping arms (43) corresponding to the splitting wedges (3) are respectively hinged on the traction sliding seat (421).
6. The hydraulic splitting and breaking construction device for the built-in composite sleeve of the pile head according to claim 5, wherein the hydraulic seat (41) is provided with a avoiding groove (411) for traction sliding of the sliding seat (421) in a lifting manner, and the bottom end of the splitting clamping arm (43) is provided with a wedge surface end (431) matched with the limit wedge surface (33).
7. The hydraulic splitting and breaking construction device for the pile head built-in composite sleeve according to claim 5, wherein a clamping arm guide groove (432) corresponding to the splitting clamping arm is further formed in the splitting clamping arm (43), guide pin shafts (44) matched with the clamping arm guide groove (432) are further respectively mounted on the splitting clamping arm (43), and two ends of the guide pin shafts (44) extend to the inner wall of the hydraulic seat (41) respectively.
8. The hydraulic splitting and breaking construction device for the built-in composite sleeve of the pile head according to claim 1, wherein the pile body main rib (6) and the PVC sleeve (61) are sealed by waterproof adhesive tape.
9. The process of the hydraulic splitting and breaking construction device for the composite sleeve with the built-in pile head is applied to the hydraulic splitting and breaking construction device for the composite sleeve with the built-in pile head, and is characterized by comprising the following steps of: When the device is needed to be used, firstly, in the working stage of a cast-in-place pile reinforcement cage, a PVC sleeve (61) is sleeved on the section of a pile body main reinforcement (6) corresponding to a cast-in-place pile head (2), and a gap between the two is sealed by a waterproof adhesive tape; Step two, the butt joint hole (13) of the cast-in-place pile body (1) and the pile head locking block (223) of the splitting end (22) of the cast-in-place pile head (2) are matched to finish the pre-positioning of the two, so that the pile body breaking pile hole (12) and the pile head breaking pile hole (222) are ensured to be accurately overlapped, and the splitting end (22) is extended into the cast-in-place pile body (1); Inserting a splitting steel wedge (3) into a pile body broken pile hole (12) and a pile head broken pile hole (222) which are overlapped, respectively clamping and positioning a pile head locking block (223) and a pile body clamping block (121) through a first clamping groove (31) and a second clamping groove (32), and fixing a hydraulic seat (41) at an assembly end (23) through an assembly screw (5) to ensure that a wedge surface end (431) is attached to a limit wedge surface (33); Fourthly, pouring the concrete of the cast-in-place pile, starting an external hydraulic control system after the concrete is cured to the designed strength, driving a hydraulic breaking push rod (42) to drive a traction sliding seat (421) to lift, enabling a splitting clamping arm (43) to swing to generate radial splitting force, and pushing a splitting steel wedge (3) to split the cast-in-place pile head (2) along the annular groove (11); And fifthly, closing the hydraulic control system, dismantling the splitting steel wedge (3), and integrally hoisting the cast-in-situ pile head (2) by using the hoisting ring (21) through hoisting equipment to finish pile head breaking operation.

Description

Hydraulic splitting and breaking construction device and technology for built-in composite sleeve of pile head Technical Field The invention relates to the technical field of building construction, in particular to a hydraulic splitting and breaking construction device and technology for a composite sleeve arranged in a pile head. Background The bored pile is widely used as a core foundation form of infrastructure engineering such as bridges, high-rise buildings and the like due to the advantages of reliable quality, strong stratum adaptability and the like. According to the requirements of building pile foundation technical specifications, in order to ensure the concrete strength of a pile body, the pile top concrete needs to be poured to 0.5-1.0 m above a designed elevation (part of engineering even superfilling by 2-3 m) during the construction of a cast-in-place pile, the pile head of the ultra-high part needs to be broken before the construction of a subsequent bearing platform or a tie beam, at present, various construction methods aiming at pile head breaking in the industry have been developed, wherein the core principle of a sleeve isolation integral breaking method is that an isolation sleeve is sleeved outside a longitudinal main rib at the pile head part before a reinforcement cage is put down, after the pile body concrete is poured and maintained to the designed strength, the pile head and the pile body are separated through hydraulic splitting and other modes, and then the pile head is integrally removed through hoisting equipment. When the pile body and the pile head are separated in a hydraulic splitting mode of inserting a hydraulic splitting machine for splitting to realize the integral hanging and removing of the pile head, the splitting holes are required to be drilled at the corresponding position of the pile head on site to serve as working stations of the hydraulic splitting mechanism, a drilling machine is required to be additionally put into in the drilling process, the splitting method easily causes uneven splitting surface of the concrete of the pile body, and manual secondary trimming is required. Disclosure of Invention The present invention has been made in view of the above-mentioned problems occurring in the prior art. Therefore, the invention aims to provide a hydraulic splitting and breaking construction device and a hydraulic splitting and breaking construction process for a built-in composite sleeve of a pile head, and aims to solve the problems that when a hydraulic splitting mode is adopted for separating a pile body from the pile head, splitting holes are required to be drilled at corresponding positions of the pile head on site and used as working stations of a hydraulic splitting mechanism, a drilling machine is required to be additionally input in a drilling process, and the splitting method easily causes uneven concrete splitting surfaces of the pile body and requires manual secondary trimming. In order to achieve the aim, the hydraulic splitting and breaking construction device with the built-in composite sleeve pipe for the pile head comprises a cast-in-place pile body and a cast-in-place pile head, wherein the cast-in-place pile head is detachably arranged at the top end of the cast-in-place pile body through a splitting steel wedge, an annular groove is formed in the pile head of the cast-in-place pile body and the cast-in-place pile head at the position with an elevation, a hydraulic breaking mechanism for limiting the splitting steel wedge to move is further arranged on the cast-in-place pile head through an assembly screw, pile body main ribs are arranged in the axial directions of the cast-in-place pile body and the cast-in-place pile head in a penetrating manner, and PVC sleeve pipes are sleeved at one ends of the pile body main ribs in the cast-in-place pile head; pile body broken pile holes circumferentially distributed around the annular groove are formed in the cast-in-place pile body, pile body clamping blocks and butt joint holes corresponding to the pile body broken pile holes are also circumferentially distributed around the cast-in-place pile body, the butt joint holes are located at one end, close to the cast-in-place pile head, of the cast-in-place pile body, and the pile body broken pile holes and the butt joint holes are correspondingly arranged; The outer part of the filling pile head is fixedly provided with a hanging ring for hanging, the bottom end of the filling pile head is provided with a splitting end which is matched with the top end of the filling pile body, one end of the splitting end extending into the filling pile body is fixedly provided with a reinforcing collar hoop, the splitting end is provided with a pile head broken pile hole and a pile head locking piece corresponding to the pile body broken pile hole along the circumferential direction of the splitting end, one end of the pile head locking piece extends into the butt joi