Water taking head structure in underwater rock stratum

Abstract

The water taking head structure comprises a supporting structure and a water taking head part arranged on the supporting structure, the supporting structure comprises a supporting steel cavity and a plurality of seamless steel pipes, the seamless steel pipes are vertically embedded into the rock stratum excavated underwater at intervals, and the seamless steel pipes are filled with slurry for sealing. The supporting steel cavity is vertically arranged on a rock stratum plane excavated underwater, the middle upper portions of the seamless steel pipes are all located in the supporting steel cavity, the interior and the exterior of the supporting steel cavity are wrapped by underwater concrete in a pouring mode, the water taking head is provided with a water inlet and a water outlet, and the water taking head is connected to the top of the supporting steel cavity through bolts. The design and installation of the water taking head structure in the underwater rock stratum are achieved, and the water taking head structure is a novel water taking head structure suitable for the underwater rock stratum and is stable and reliable.

Description

TECHNICAL FIELD

[0001] The utility model relates to underwater water taking equipment technical field, more specifically, the utility model relates to a water taking head structure in underwater rock stratum. BACKGROUND

[0002] The water taking head structure corresponding to the application is located below the perennial low water level of the right bank of the Yangtze River, the bank slope is stable, the bedrock is mainly sandstone, the saturated compressive strength of the sandstone at this place is 24.84MPa, belongs to relatively soft rock, the rock mass integrity coefficient is 0.64, and the rock mass is relatively complete. The river scouring effect is not obvious at the water taking head part, the medium weathered sandstone is used as the basic bearing stratum at the water taking head part, and the depth of the basement below the design scouring line is not less than 0.5m. The conventional water taking head structure is generally arranged on the bank and adopts the cofferdam excavation construction mode, and the water taking head structure of the application is located in the rock stratum. If the cofferdam construction is used to design the water taking head structure, the construction difficulty is great, the workload is large, the conventional water taking head structure cannot be applied to the construction of the application project, and therefore a new water taking head structure suitable for the application project is designed to solve the technical problem. CONTENT OF THE UTILITY MODEL

[0003] An object of the utility model is to provide a water taking head structure in underwater rock stratum, realize the design and installation of the water taking head structure in underwater rock stratum, and provide a new water taking head structure suitable for underwater rock stratum and stable and reliable in structure.

[0004] In order to solve the above technical problem, the utility model provides a water taking head structure in underwater rock stratum, which comprises a supporting structure and a water taking head part arranged on the supporting structure, the supporting structure comprises a supporting steel cavity and a plurality of seamless steel pipes, the plurality of seamless steel pipes are vertically and spacedly embedded into the underwater excavated rock stratum, the plurality of seamless steel pipes are grouted and filled to be sealed, the supporting steel cavity is vertically arranged on the plane of the underwater excavated rock stratum, the upper parts of the plurality of seamless steel pipes are located in the supporting steel cavity, the supporting steel cavity is wrapped by underwater concrete from the inside and the outside, the water taking head part is provided with a water inlet and a water outlet, and the water taking head part is connected to the top of the supporting steel cavity through bolts.

[0005] Preferably, the cross section of the water taking head part is trapezoidal, two water inlets are arranged on the front surface of the water taking head part, and two water inlet pipes are correspondingly arranged to take water, and the water outlet is arranged on the back surface of the water taking head part and one water outlet pipe is correspondingly arranged.

[0006] Preferably, the lower part of the plurality of seamless steel pipes embedded into the rock stratum has a height of not less than 1.0m.

[0007] Preferably, the bottom of the water intake head is connected with an integral steel frame which is integrated with the supporting steel cavity through a plurality of bolts, and the water intake head and the supporting steel cavity are also wrapped by underwater concrete pouring.

[0008] Preferably, a mold bag concrete supporting is arranged between the bottom of the water intake head and the supporting steel cavity.

[0009] Preferably, the rock stratum excavated underwater is covered by underwater concrete pouring to form an underwater concrete layer.

[0010] The utility model at least has following beneficial effects:

[0011] 1, the utility model discloses a rock stratum is excavated by the mode of underwater blasting and mechanical excavation, and a rock stratum plane is formed, then the seamless steel pipe is embedded and installed, and then the supporting steel cavity is constructed, which is used as a supporting structure, and is fixed underwater, and then the underwater concrete is poured inside and outside to wrap, and the overall supporting structure realizes the stable support of the water intake head, and the structure is stable and reliable, and the construction is convenient.

[0012] 2, the utility model discloses that the water intake head section is trapezoidal, and the water intake amount is increased, so that the water intake amount is large, and the actual demand is satisfied.

[0013] Other advantages, objects and features of the utility model will be embodied partly through the following description, and will be understood by the person skilled in the art through the research and practice of the utility model. DRAWINGS

[0014] Figure 1 It is the sectional view of the water intake head structure of the utility model;

[0015] Figure 2 It is the plan view of the water intake head structure of the utility model. CONCRETE EMBODIMENT

[0016] In order to better understand the purpose, structure and function of the utility model, the utility model will be further described in detail in combination with the drawings, so that the person skilled in the art can implement according to the description.

[0017] It should be noted that, in the description of the utility model, the terms "transverse", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0018] As Figure 1 And Figure 2 As shown in the utility model provides a kind of water head structure in underwater rock stratum, including support structure and the water head 1 of being set on support structure, the support structure includes support steel cavity 3 and several seamless steel pipes 2, several seamless steel pipes are vertically spaced embedded into the rock stratum of underwater excavation, several seamless steel pipes are grouted and filled to carry out plugging, the support steel cavity is vertically set on the rock stratum plane of underwater excavation, the upper portion of several seamless steel pipes is located in the support steel cavity, the support steel cavity is wrapped by underwater concrete 5 pouring from inside and outside, the water head is provided with water inlet and water outlet, the water head is connected to the top of the support steel cavity by bolt 4.

[0019] Firstly, rock stratum is excavated by underwater blasting combined with mechanical excavation, to form rock stratum plane, then underwater drilling is carried out on rock stratum plane, and seamless steel pipe is embedded in hole, then grouting is carried out in seamless steel pipe, M30 cement mortar is filled by pressure, and seamless steel pipe is grouted and filled to carry out plugging, to form stable support structure. Support steel cavity is provided outside several seamless steel pipes, which is hollow steel column structure, support steel cavity is placed on rock stratum plane, and after preliminary fixation, underwater concrete is poured in and outside support steel cavity, to realize concrete pouring in excavation surface, and support steel cavity is wrapped and fixed. Water head is hoisted and positioned according to design position, then it is fixed with support steel cavity, and subsequent construction such as underwater concrete and riverbed surface protection construction is continued.

[0020] In another technical solution, the cross section of the water head is trapezoidal, the water head is provided with two water inlets on its front face, and two water inlet pipes are correspondingly provided to take water, and the water head is provided with water outlet on its back face, and one water outlet pipe 6 is correspondingly provided. The water head is provided as trapezoidal sealing frame structure, water taking capacity is increased, and actual demand is met.

[0021] In another technical solution, the lower part of the several seamless steel pipes embedded in rock stratum has a height of not less than 1.0 m.

[0022] In another technical solution, the bottom of the water head is connected with integral steel frame, which is connected with the support steel cavity by several bolts, and the water head and the support steel cavity are also wrapped by underwater concrete pouring. Model bag concrete 7 is provided between the bottom of the water head and the support steel cavity to support.

[0023] After the water head is hoisted and positioned according to design position, bolt fixing connection between the water head and the support steel cavity is realized through steel frame, and model bag concrete is also used to support in the gap, and then the gap is wrapped and fixed by underwater concrete pouring.

[0024] In another technical solution, the underwater excavated rock stratum is covered by underwater concrete pouring to form an underwater concrete layer.

[0025] It can be understood that the utility model is described through some embodiments, and those skilled in the art know that various changes or equivalent replacements can be made to these features and embodiments without departing from the spirit and scope of the utility model. Although the embodiments of the utility model have been disclosed as above, it is not limited to the application listed in the specification and the embodiments, and it can be fully applied to various fields suitable for the utility model, and other modifications can be easily realized by those skilled in the art, so the utility model is not limited to specific details and the figures shown and described herein without departing from the general concept defined by the claims and equivalent range.

Claims

1. A water intake head structure for underwater rock formations, characterized in that, The device includes a support structure and a water intake head mounted on the support structure. The support structure includes a support steel cavity and several seamless steel pipes. The several seamless steel pipes are vertically spaced and embedded into the underwater excavated rock strata. The seamless steel pipes are sealed by grouting. The support steel cavity is vertically positioned on the underwater excavated rock strata plane. The upper and middle parts of the several seamless steel pipes are all located inside the support steel cavity. The support steel cavity is wrapped inside and out with underwater concrete. The water intake head is provided with an inlet and an outlet. The water intake head is bolted to the top of the support steel cavity.

2. The water intake head structure in underwater rock strata as described in claim 1, characterized in that, The water intake head has a trapezoidal cross-section. The water intake head has two water inlets on its front side and two corresponding water inlet pipes for water intake. The water intake head has a water outlet on its back side and a corresponding water outlet pipe.

3. The water intake head structure in underwater rock strata as described in claim 1, characterized in that, Several seamless steel pipes are embedded in the rock strata at a height of not less than 1.0m.

4. The water intake head structure in underwater rock strata as described in claim 1, characterized in that, The bottom of the water intake head is connected to an integral steel frame, which is connected to the supporting steel cavity by several bolts. The water intake head and the supporting steel cavity are also wrapped with underwater concrete.

5. The water intake head structure in underwater rock strata as described in claim 4, characterized in that, A concrete-lined support bag is also provided between the bottom of the water intake head and the supporting steel cavity.

6. The water intake head structure in underwater rock strata as described in claim 1, characterized in that, The rock strata excavated underwater were all covered with underwater concrete to form an underwater concrete layer.

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