Overview

The Liuxihe Dam is a significant hydroelectric infrastructure project located in Conghua District, Guangzhou, Guangdong Province, China. This facility is engineered as an arch dam situated on the Liuxi River, leveraging the natural topography of the region to manage water resources efficiently. The primary operational purpose of the Liuxihe Dam is hydroelectric power generation, contributing to the regional energy grid with an installed capacity of 12 MW. In addition to its energy production role, the dam serves critical secondary functions, including comprehensive flood control and extensive irrigation support for the surrounding agricultural lands. These multi-purpose capabilities make the Liuxihe Dam a vital component of the local water and energy infrastructure in southern China.

The construction of the Liuxihe Dam was carried out between 1956 and 1958, with the facility officially commissioned in 1958. The dam structure stands at a height of 78 metres, a dimension that reflects the engineering standards and hydraulic requirements of the mid-20th century. As an arch dam, the Liuxihe Dam utilizes the curved shape of its structure to transfer the water load to the abutments on either side of the river valley, providing stability and efficiency in water retention. The operational status of the dam remains active, continuing to provide essential services to the Conghua District and the broader Guangzhou metropolitan area.

The Liuxi River, on which the dam is built, is a key waterway in the region, and the dam's presence has significantly influenced the hydrological characteristics of the river system. The flood control aspect of the dam is particularly important for protecting downstream communities and agricultural zones from seasonal flooding, which is common in the Guangdong Province climate. The irrigation function supports local agriculture, ensuring a steady water supply for crops and enhancing food security in the region. The hydroelectric power generated by the dam contributes to the energy mix of the area, providing a renewable source of electricity that complements other power generation methods in the province.

The Liuxihe Dam represents an important example of mid-20th century hydraulic engineering in China, showcasing the integration of multiple water management objectives within a single infrastructure project. Its continued operation since 1958 demonstrates the durability and effectiveness of the arch dam design in the local geological and hydrological context. The dam's role in flood control, irrigation, and power generation highlights the strategic importance of water resource management in supporting both economic development and environmental sustainability in the region. The Liuxihe Dam remains a key asset in the infrastructure portfolio of Conghua District, contributing to the resilience and productivity of the local community.

History and Construction Timeline

The Liuxihe Dam, located on the Liuxi River in Conghua District, Guangzhou, Guangdong Province, China, was constructed between 1956 and 1958. The project was initiated to serve multiple functions, with hydroelectric power generation as the primary purpose, supplemented by flood control and irrigation capabilities. The dam is an arch dam structure, standing 78 metres (256 ft) tall. Construction began in 1956 and was completed in 1958, with the facility officially commissioned in 1958. The dam is currently operational and has a capacity of 12 MW. The operator of the dam is.

Structural Design and Engineering Specifications

The Liuxihe Dam is classified as an arch dam, a structural design chosen to efficiently transfer the hydrostatic pressure of the reservoir water to the abutments on either side of the river valley. Located on the Liuxi River in Conghua District, Guangzhou, Guangdong Province, China, the structure serves multiple functions, with hydroelectric power generation as its primary purpose, supplemented by flood control and irrigation capabilities.

Dam Dimensions and Structural Composition

The dam stands 78 metres (256 ft) tall, a significant height for a mid-20th-century arch dam in the region. The construction of the Liuxihe Dam took place between 1956 and 1958, culminating in its commissioning in 1958. The arch design allows for a relatively thin profile compared to gravity dams, optimizing the use of concrete while maintaining structural integrity against the water load.

Parameter Value
Dam Type Arch dam
Height 78 metres (256 ft)
Construction Period 1956–1958
Commissioning Year 1958
Location Liuxi River, Conghua District, Guangzhou, Guangdong Province, China

The engineering specifications reflect the standards of late 1950s hydroelectric infrastructure in China. The dam's height of 78 metres provides the necessary head for the 12 MW hydroelectric power plant associated with the project. The structural composition relies on the arch geometry to distribute loads effectively, a critical factor in the dam's long-term operational status, which remains active as of the current data. The precise volume of concrete used in the construction is not explicitly detailed in the primary cited sources, but the 78-metre height and arch classification define its primary engineering characteristics. The dam's role in flood control and irrigation further underscores its importance to the local infrastructure in Conghua District, supporting both energy production and agricultural water management in the region.

Hydroelectric Power Generation Capacity

The Liuxihe Dam serves as a critical infrastructure asset for local energy production in Guangdong Province, with hydroelectric power generation identified as its primary operational purpose alongside flood control and irrigation. The facility achieved initial operational status in 1958, following a construction period that began in 1956. The installed capacity of the hydroelectric station is 12 MW, a figure that reflects the plant's output characteristics as documented in authoritative energy infrastructure records. This capacity level positions the Liuxihe Dam as a significant contributor to the regional power grid within the Conghua District of Guangzhou, providing a steady baseload of renewable energy derived from the flow of the Liuxi River.

While the original commissioning in 1958 established the baseline for the plant's output, the operational history of the Liuxihe Dam includes a notable modernization effort in 1993. This upgrade period was implemented to enhance the efficiency and reliability of the power generation units, ensuring the facility could meet evolving energy demands in the rapidly developing Guangzhou metropolitan area. The 1993 improvements likely involved updates to the turbine-generator sets and associated electromechanical equipment, although specific technical details of the retrofitting process are less frequently cited in general overviews compared to the dam's structural dimensions. The continuity of operation since 1958 underscores the robustness of the arch dam design and the sustained maintenance of the hydroelectric systems.

The generator specifications for the Liuxihe Dam are summarized in the table below. These parameters define the electrical output capabilities of the station, which are directly linked to the hydraulic head provided by the 78-metre-high arch structure. The integration of the hydroelectric plant with the broader water management functions of the dam allows for optimized operation, balancing energy production with the needs for flood mitigation and agricultural irrigation in the surrounding region.

Parameter Value
Installed Capacity 12 MW
Primary Fuel/Source Water (Liuxi River)
Commissioning Year 1958
Notable Upgrade 1993
Operational Status Operational

The 12 MW capacity represents the total electrical output of the Liuxihe hydroelectric station. This output is generated by converting the potential energy of the water stored behind the arch dam into kinetic energy, which then drives the turbine-generator units. The specific configuration of these units, including the type of turbines used (such as Francis or Pelton wheels, common for such head heights), contributes to the overall efficiency of the power generation process. The 1993 upgrade would have been crucial in maintaining this output level, potentially increasing the capacity factor or improving the load-following capabilities of the plant. As an operational facility in China, the Liuxihe Dam continues to play a role in the diversification of the local energy mix, leveraging the natural hydrological resources of the Liuxi River basin. The dam's height of 78 metres provides the necessary hydraulic head to support this level of power generation, making the structural integrity of the arch dam a key factor in the long-term viability of the hydroelectric project.

What are the key engineering features of the Liuxihe Dam?

The Liuxihe Dam is an arch dam situated on the Liuxi River in Conghua District, Guangzhou, Guangdong Province, China. Its primary function is hydroelectric power generation, with additional roles in flood control and irrigation. The structure stands 78 metres tall and was constructed between 1956 and 1958. The installed capacity of the facility is 12 MW.

Arch Dam Design and Structural Efficiency

The classification of the Liuxihe Dam as an arch dam indicates a design that relies on the curvature of the structure to transfer the hydrostatic pressure of the water to the abutments of the river valley. This double-curvature design is a key engineering feature that allows for structural stability with a relatively thin cross-section compared to gravity dams. The efficiency of an arch dam depends heavily on the geological characteristics of the river valley, where the Liuxihe Dam is located. The arch action reduces the amount of concrete required and distributes the load effectively to the foundation and side walls, enhancing the overall structural integrity of the 78-metre-high barrier.

The construction period from 1956 to 1958 reflects the engineering capabilities of the era, resulting in a structure that has remained operational for decades. The dam's role in flood control is facilitated by its ability to regulate water discharge, a critical function for the Liuxi River basin. The hydroelectric power generation capacity of 12 MW is derived from the potential energy of the water stored behind the arch structure. The integration of flood control, irrigation, and power generation demonstrates the multi-purpose utility of the dam's engineering design.

The specific details of the double-curvature arch design, including the exact radius of curvature or the thickness of the crown, are. However, the general classification as an arch dam on the Liuxi River provides the basis for understanding its structural behavior. The dam's height of 78 metres is a significant factor in the head available for power generation, contributing to the 12 MW output. The operational status of the dam confirms the long-term effectiveness of its construction and design.

Operational Context and Location

This location places the dam within a region with significant hydrological activity, necessitating effective flood control measures. The Liuxi River serves as the primary water source for the dam, and the arch design is suited to the topography of the river valley. The construction dates of 1956 to 1958 indicate that the dam was commissioned in the mid-20th century, a period of significant infrastructure development in China. The continued operation of the dam highlights the durability of the arch dam technology used in its construction.

The absence of a specified operator in the cited sources suggests that the operational management may be under a local or provincial authority, but the specific entity is not named. The primary fuel or energy source for the hydroelectric power plant is water, which is consistent with the definition of a hydroelectric powerplant. The dam's height of 78 metres and its arch design are the key physical characteristics that define its engineering profile. The multi-purpose nature of the project, including hydroelectric power, flood control, and irrigation, underscores the importance of the Liuxihe Dam in the regional energy and water management infrastructure of Guangdong Province.

How does the Liuxihe Dam integrate with regional water management?

The Liuxihe Dam functions as a critical node in the water management infrastructure of the Liuxi River basin, serving dual roles beyond its primary function of hydroelectric power generation. According to authoritative records, the main purposes of the project include flood control and irrigation, integrating energy production with essential agricultural and urban water security needs in the Conghua District of Guangzhou, Guangdong Province. The dam’s 78-metre height allows for significant reservoir capacity, which is strategically utilized to regulate flow during seasonal variations and peak discharge events.

Flood Control and Irrigation Dynamics

In the context of flood control, the Liuxihe Dam mitigates downstream flooding risks by capturing excess runoff from the upper Liuxi River catchment. This regulation is particularly vital for the urban and agricultural areas situated along the river’s course. The reservoir’s ability to store water during heavy rainfall periods reduces the hydraulic load on downstream channels and infrastructure. Concurrently, the stored water is released during drier seasons to support irrigation networks, ensuring consistent water supply for agricultural productivity in the region. This dual-use approach maximizes the utility of the captured water resource, balancing immediate flood mitigation with longer-term agricultural demands.

Integration with the Huanglongdai Dam

The Liuxihe Dam operates in conjunction with the Huanglongdai Dam, another key hydraulic structure within the same river system. This integration creates a cascading effect that enhances overall basin management. The coordinated operation of these dams allows for more precise control over water levels and flow rates throughout the Liuxi River. By managing the release schedules from Liuxihe in relation to the storage and release capacities of Huanglongdai, water managers can optimize both power generation efficiency and water availability for downstream users. This synergistic relationship underscores the strategic planning behind the region’s hydroelectric infrastructure, where multiple structures work in tandem to address the complex hydrological challenges of the Guangdong Province landscape.

Significance

The Liuxihe Dam represents a foundational element of mid-20th century infrastructure development in Guangdong Province, China. Constructed between 1956 and 1958, the facility was completed during a critical period of post-war industrialization and urban expansion for the region. As an arch dam standing 78 metres tall, the structure was engineered to harness the flow of the Liuxi River, located in the Conghua District of Guangzhou. Its commissioning in 1958 marked the introduction of a 12 MW hydroelectric power generation capacity to the local grid, providing a reliable energy source for Guangzhou's growing industrial and residential sectors during the late 1950s. This capacity, while modest by modern standards, was significant for the era, contributing to the stabilization of power supply in a province that would later become an economic powerhouse. The dam's construction demonstrated the technical capability to manage water resources effectively in the hilly terrain of northern Guangzhou, utilizing the arch design to optimize structural integrity relative to the river valley's geography.

Flood Control and Irrigation

Beyond its primary role in hydroelectric power generation, the Liuxihe Dam serves critical functions in flood control and irrigation, which were central to its design objectives. The Liuxi River, flowing through the Conghua District, is prone to seasonal fluctuations that can impact both agricultural productivity and urban safety. By regulating the river's flow, the dam mitigates the risk of flooding in downstream areas, protecting communities and farmlands in the broader Guangzhou metropolitan region. This flood defense capability is particularly important given the increasing urbanization of the district, where land use changes can exacerbate runoff and water table variations. The reservoir created by the 78-metre structure also supports irrigation systems, ensuring a consistent water supply for agricultural activities in the surrounding areas. This dual-purpose design reflects a strategic approach to water resource management, balancing energy production with agricultural stability and urban resilience. The integration of flood control into the dam's operational framework highlights its role as a multi-functional infrastructure asset, essential for the sustainable development of the Conghua District and the wider Guangdong Province.

Historical Context in Guangdong's Energy Landscape

The construction of the Liuxihe Dam occurred during a transformative period for Guangdong Province, as the region began to leverage its natural resources to fuel economic growth. The late 1950s saw increased investment in hydroelectric projects to support industrialization, and the Liuxihe Dam was among the early milestones in this effort. Its completion in 1958 provided Guangzhou with a localized source of renewable energy, reducing dependence on imported fuels and enhancing energy security. The dam's operational status has remained consistent since its commissioning, underscoring the durability and effectiveness of its arch design. As Guangzhou expanded into a major economic hub, the Liuxihe Dam continued to contribute to the region's energy mix, illustrating the long-term value of mid-century infrastructure investments. The facility's role in supporting both power generation and water management reflects the integrated approach to development that characterized Guangdong's infrastructure planning during this era. Today, the Liuxihe Dam stands as a testament to the engineering achievements of the period, continuing to serve the energy and water needs of the Conghua District and the greater Guangzhou area.

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