Water drilling floating self-stabilizing platform for steep bare rock area and installation method thereof

Abstract

The present application relates to a kind of steep bare rock area water drilling floating self-stabilizing platform and its installation method, drilling floating self-stabilizing platform includes platform structure, anchoring structure and positioning structure, the platform structure is used for the load bearing of drilling equipment, the anchoring structure is used for the plane positioning and movement of platform structure, the positioning structure is used for the fixed connection of platform structure and rock bank slope, the platform structure includes hull and drilling platform cornice, the drilling platform cornice is fixedly arranged in the side of hull, the anchoring structure includes outer eight character anchor and inner eight character anchor, the outer eight character anchor is arranged in the side of hull away from rock bank, the present application can guarantee that hull is located in a stable plane position, hull is under the constraint of slide groove, can be moved up and down along the slide on positioning pile, effectively adapt to the fluctuation of water level.

Description

Technical Field

[0001] This invention relates to the field of pile foundation construction, and more specifically, to a method for installing a floating self-stabilizing platform for drilling in steep bare rock areas. Background Technology

[0002] Underwater bored pile construction typically utilizes pile foundation drilling platforms or floating drilling platforms. However, for underwater bored piles located in areas with completely exposed rock, steep banks, and significant water level fluctuations, conventional positioning methods are insufficient to meet the positioning requirements of floating platforms. Furthermore, anchoring and positioning the floating platform is challenging when the pile foundation is situated on a steep, exposed rock slope in the water. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a floating self-stabilizing platform for drilling in steep bare rock areas and its installation method, which can provide a good construction environment for drilling operations.

[0004] The technical solution adopted by this invention to solve its technical problem is as follows: A floating self-stabilizing platform for drilling in steep bare rock areas is constructed, comprising a platform structure, an anchoring structure, and a positioning structure. The platform structure is used to support the drilling equipment. The anchoring structure is used for the planar positioning and movement of the platform structure. The positioning structure is used to fix the platform structure to the rocky bank. The platform structure includes a hull and a drilling platform overhang. The drilling platform overhang is fixedly installed on the side of the hull. The anchoring structure includes an outward-facing anchor and an inward-facing anchor. The outward-facing anchor is located on the side of the hull away from the rocky bank and is anchored with a cable. The inward-facing anchor is located on the side closer to the rocky bank and includes an anchor cable, a first anchor ring, and a winch. The first anchor ring is fixedly installed on the rocky bank. The winch is fixedly installed at the top corner of the hull. One end of the anchor cable is installed at the winch, and the other end is installed on the first anchor ring, thereby connecting the hull to the rocky bank.

[0005] According to the above scheme, the positioning structure includes a positioning pile, a bracket, a pull ring, a second anchor ring, a chute, a slide rail, a fixing cable, and a rope clamp. The bracket is fixedly installed on the upper part of the hull, the slide rail is fixedly installed on the side of the hull and extends to the upper part of the bracket, a positioning pile is fixedly installed on the outer side of the slide rail, a chute for the slide rail to slide on the outer side of the hull and the bracket, a pull ring is fixedly installed on the outer side of the positioning pile, the second anchor ring is fixedly installed on the rocky bank, one end of the fixing cable is installed at the pull ring and the other end is installed on the second anchor ring to connect the hull to the rocky bank, and a rope clamp for locking the bank side is also installed at the second anchor ring.

[0006] According to the above scheme, the eaves of the drilling platform are made of steel profiles or steel plates.

[0007] The present invention also provides a method for installing the aforementioned floating self-stabilizing platform for underwater drilling in steep bare rock areas, comprising the following steps:

[0008] S1. Outer V-shaped anchors and inner V-shaped anchors are installed upstream and downstream of the hull. The outer V-shaped anchors are anchored by throwing the cable, and the inner V-shaped anchors are anchored directly by the first anchor ring fixed to the rocky bank slope. The support and the lower side of the slide are fixedly installed on the hull. The positioning pile is fixedly installed on the slide and the slide is connected to the slide attached to the hull.

[0009] S2. The hull of the floating platform is first positioned with an outward-facing anchor. After positioning, the positioning stake is placed on the rock slope with the assistance of a crane or lifting equipment and completely released. One end of the fixing cable is connected to the pull ring, and the other end passes through the first anchor ring and returns to the hull.

[0010] S3. Use the winch or cutter on the hull to tighten the anchor cable, and use a rope clamp near the second anchor ring to clamp the anchor cable back and forth.

[0011] S4. After each row of pile holes is drilled, the piles are first lifted by a crane or jacking equipment or positioned periodically. Then, the hull is moved to the next row of drilling positions and repositioned by using an inward-pointing anchor.

[0012] The floating stabilization platform for underwater drilling in steep bare rock areas, as described in this invention, has the following beneficial effects:

[0013] This invention employs rock slope anchor ring mooring and positioning piles on the inner side of the platform to ensure vessel stability, providing a favorable construction environment for drilling operations. It effectively solves the positioning problem of floating platforms. The floating platform and positioning piles are connected via slideways and chutes. After positioning, the positioning piles cannot move towards the shore due to their own weight, nor can they move towards the water due to the fixing cables. This ensures the hull remains in a stable planar position. Constrained by the chutes, the hull can move up and down along the slideways on the positioning piles, effectively adapting to water level fluctuations. This positioning pile structure is suitable for positioning floating platforms on steep rock slopes in areas with large water level changes. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the accompanying drawings:

[0015] Figure 1 This is a schematic diagram of the structure of the floating stabilization platform for underwater drilling in steep bare rock areas according to the present invention;

[0016] Figure 2 This is a top view of the floating stabilization platform for drilling in steep bare rock areas according to the present invention;

[0017] Figure 3 This is a schematic diagram of the eaves of the drilling platform. Detailed Implementation

[0018] To provide a clearer understanding of the technical features, objectives, and effects of the present invention, specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0019] like Figure 1-3 As shown, the floating self-stabilizing platform for drilling in steep bare rock areas according to the present invention includes a platform structure, an anchoring structure, and a positioning structure. The platform structure is used to support the drilling equipment, and the anchoring structure is used for the planar positioning and movement of the platform structure, as well as for small-range movement of the drilling floating platform. The positioning structure is used to fix the platform structure to the rocky bank slope 2. The platform structure includes a hull 1 and a drilling platform overhang 12, which is a steel structure or a steel plate structure. The drilling platform overhang 12 is fixedly installed on the side of the hull 1. The anchoring structure includes an outward-facing anchor and an inward-facing anchor. The outward-facing anchor is located on the side of the hull 1 away from the rocky bank and is anchored with a cable by dropping the cable. The inward-facing anchor is located on the side closer to the rocky bank and includes an anchor cable 4, a first anchor ring 3, and a winch 14. The first anchor ring 3 is fixedly installed on the rocky bank 2, and the winch 14 is fixedly installed at the top corner of the hull 1. One end of the anchor cable 4 is attached to the winch 14, and the other end is attached to the first anchor ring 3, thus connecting the hull 1 to the rocky bank. The platform structure is based on the hull 1, with the drilling platform overhang 12 welded to one side to form the platform structure. The drilling platform overhang 12 is welded to the hull 1 as a whole. The anchor cable 4 on the bank side is connected to the rocky bank 2 by the first anchor ring 3, and the anchor cable 4 on the water side is anchored to the riverbed.

[0020] The positioning structure includes a positioning stake 6, a bracket 5, a pull ring 9, a second anchor ring 13, a chute 7, a slide rail 8, a fixing cable 10, and a rope clamp 11. The bracket 5 is fixedly installed on the upper part of the hull 1. The slide rail 8 is fixedly installed on the side of the hull 1 and extends to the upper part of the bracket 5. The positioning stake 6 is fixedly installed on the outside of the slide rail 8. The chute 7 for sliding the slide rail 8 is provided on the outside of the hull 1 and the bracket 5. The pull ring 9 is fixedly installed on the outside of the positioning stake 6. The second anchor ring 13 is fixedly installed on the rocky bank slope 2. One end of the fixing cable 10 is set at the pull ring 9 and the other end is set at the second anchor ring 13 to connect the hull 1 to the rocky bank slope. A rope clamp 11 for locking the bank side is also provided at the second anchor ring 13.

[0021] The drilling floating platform uses a relatively large barge, i.e., hull 1, as its main body. A drilling platform overhang 12 is welded to one side of hull 1. Because the pile foundation is located in water on a steep, bare rock slope, anchoring and positioning the floating platform is difficult. This invention employs rock slope anchor rings for mooring, and positioning piles 6 on the inner side of the platform ensure the stability of the vessel, providing a favorable construction environment for drilling operations. The main body of the floating platform is hull 1, which is stabilized by positioning piles 6. The positioning piles 6 are secured to anchor rings on the rock surface by anchor cables 4. Hull 1 and positioning piles 6 are connected by slideways 8 and grooves 7, achieving horizontal rigidity and vertical free sliding.

[0022] This invention also provides a method for installing a floating self-stabilizing platform for drilling in steep bare rock areas, comprising the following steps:

[0023] S1. Outer V-shaped anchors and inner V-shaped anchors are installed upstream and downstream of the hull 1. The outer V-shaped anchors are anchored by throwing the cable, and the inner V-shaped anchors are anchored directly by the first anchor ring 3 anchored to the rocky bank slope 2. The bracket 5 and the lower side of the slide 7 are fixedly installed on the hull 1. The positioning pile 6 is fixedly installed on the slide 8 on the slide 7 and connected to the slide 7 attached to the hull 1.

[0024] S2. The hull 1 of the floating platform is first positioned with an outward-facing anchor. After positioning, with the assistance of a crane or jacking equipment, the positioning pile 6 is placed on the rock slope and completely released. One end of the fixing cable 10 is connected to the pull ring 9, and the other end passes through the first anchor ring 3 and returns to the hull 1.

[0025] S3. Use the winch or cutter 14 on the hull 1 to tighten the fixing cable 10, and use the rope clamp 11 to clamp the back-and-forth fixing cable 10 near the second anchor ring 13.

[0026] S4. After each row of pile holes is drilled, the pile 6 is first lifted or periodically positioned using a crane or jacking equipment, and then the hull 1 is moved to the next row of drilling positions and repositioned using an inward-pointing anchor.

[0027] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims. All of these forms are within the protection scope of the present invention.

Claims

1. A method for installing a floating self-stabilizing platform for drilling in steep, bare rock areas, characterized in that, The floating self-stabilizing platform for drilling in steep bare rock areas includes a platform structure, an anchoring structure, and a positioning structure. The platform structure supports the drilling equipment. The anchoring structure is used for the planar positioning and movement of the platform structure. The positioning structure stabilizes the platform in a fixed planar position. The platform structure includes a hull and a drilling platform overhang. The drilling platform overhang is fixedly installed on the side of the hull. The anchoring structure includes an outward-facing anchor and an inward-facing anchor. The outward-facing anchor is installed on the side of the hull away from the rocky slope and is anchored with a cable by dropping. The inward-facing anchor is installed on the side closer to the rocky slope and includes an anchor cable, a first anchor ring, and a winch. The first anchor ring is fixedly installed on the rocky slope. The winch is fixedly installed at the top corner of the hull. One end of the anchor cable is installed at the winch and the other end is installed on the first anchor ring, thereby connecting the hull to the rocky slope. The positioning structure includes a positioning stake, a bracket, a pull ring, a second anchor ring, a chute, a slide rail, a fixing cable, and a rope clamp. The bracket is fixedly installed on the upper part of the hull, the slide rail is fixedly installed on the side of the hull and extends to the upper part of the bracket, a positioning stake is fixedly installed on the outer side of the slide rail, a chute for the slide rail to slide on the outer side of the hull and the bracket, a pull ring is fixedly installed on the outer side of the positioning stake, the second anchor ring is fixedly installed on the rocky bank, one end of the fixing cable is installed at the pull ring and the other end is installed on the second anchor ring to connect the hull to the rocky bank, and a rope clamp for locking the bank side is also installed at the second anchor ring. The installation method includes the following steps: S1. Outer V-shaped anchors and inner V-shaped anchors are installed upstream and downstream of the hull. The outer V-shaped anchors are anchored by throwing the cable, and the inner V-shaped anchors are anchored directly by the first anchor ring fixed to the rocky bank slope. The slide rail fixed on the positioning pile is connected to the slide groove on the hull. S2. The hull of the floating platform is first positioned with an outward-facing anchor. After positioning, the positioning stake is placed on the rock slope with the assistance of a crane or lifting equipment and completely released. One end of the fixing cable is connected to the pull ring, and the other end passes through the first anchor ring and returns to the hull. S3. Use the winch or cutter on the hull to tighten the anchor cable, and use a rope clamp near the second anchor ring to clamp the anchor cable back and forth. S4. After each row of pile holes is drilled, the positioning pile is first lifted or jacked up by a crane or jacking equipment, and then the hull is moved to the next row of drilling positions by using an inward-pointing anchor.

2. The installation method of the floating self-stabilizing platform for underwater drilling in steep bare rock areas according to claim 1, characterized in that, The eaves of the drilling platform are made of steel profiles or steel plates.

Images