The Hydraulic Elevator Dam is a revolutionary type of
hydro-technique and the latest supporting pier dam of its kind. It
is world's leading achievement in the field of movable dam
technology. It is widely used in irrigation, navigation, and
aquaculture, as well as in small hydropower plant and urban river
landscape engineering. The hydraulic elevator dam has conquered all
the shortcomings of the traditional movable dam, while at the same
time has its own distinct advantages. It operates without blocking
flood water as the rubber dam clings to the riverbed. It operates
in a similar fashion to a flap gate, which automatically drops down
for flood discharge or lifts up for holding water, and is as
durable as conventional sluices. Gaps in small river management
technology have been obliterated since the invention of the
hydraulic elevator dam. On the international market, it is the
third-generation of movable weir products.
Structure and Technical Features
The Hydraulic Elevator Dam is composed of an arc (or straight line)
dam surface, hydraulic rods, strut bars, hydraulic cylinders and a
hydraulic pump station. It adopts the dump-truck mechanics theory,
combined with a buttress dam hydraulic structure, and has dual
functions of retaining water and discharging water. Hydraulic
cylinders stand erectly at the back of the dam and control the
pulley movement of sliding strut bars. These cylinders are used for
lifting the dam for blocking water, or for lowering the dam in the
case of a flood discharge. An inhibiting device controls the pulley
movement of sliding strut bars, which is used to support the pier
dam's fixed and movable exchange. A buoy switch is used to control
the operations of the hydraulic system. The automated system allows
for the lifting and the lowering of the dam according to flood
fluctuation, and as such, may be left unsupervised.
Simple and short-period of construction, less embedded devices,
control equipment and concrete work. Therefore, the overall cost is
much less than the same specifications for conventional gates and
2.Wide Range of Applicability
The height can be over 10 meters, while the width is limitless
(tailored to specific needs). It is adaptable to any geological
conditions in riverbeds, and can be built on the top of an arch
dam. It is not affected by sediment deposition and floating debris.
The dam release is very quick and has a high-flood carrying
capacity. It may be operating using a diesel engine; therefore it
is suitable for use in rural areas where electricity is sometimes
3.Solid and Reliable Structure
The dam has a scientific mechanical structure. The height may be
randomly adjusted. It has two-way water retention ability.
4. High- Flood Carrying Capacity
No support piers or any other water blocking objects are required
to be set up. It is only twenty centimeters (20 cm) high when it is
fully put down, and neither affects flood control nor navigation.
Flood water, blasting, and platoon floaters all cannot affect the
dam. It also has very strong flood water resistance ability.
5. Superior Hydraulic Condition
The original riverbed level is maintained when this type of dam is
dropped down. It is especially applicable to the rivers with a lot
of sand, stones, and debris, which are not usually suited for
building rubber dams. It also can be constructed in cold regions,
since ice will not affect the dam's surface.
6. Simple operation
The hydraulic system operates easily and requires much less time to
lift and drop the dam compared to other types of dams. Therefore,
it is suitable for hilly areas where there are sharp fluctuations
in flood conditions.
7. Low Maintenance Fees and Long Service Life
This type of dam does not require stationed management. When the
water level reaches the buoy control, it is automatically put down.
Therefore, the maintenance management cost is very low. Components
are durable and may be replaced easily and cheaply. Service life is
at least fifty (50) years.
8. Beautiful Dam- Shape and Man-Made Waterfalls
The dam surface may have different colors and designs. The height
of the dam may be adjusted for demonstrations. The upstream water
forms large waterfalls and water promenades for visitors.
The above characteristics make the hydraulic elevator (lift) dam a
comprehensive alternative to rubber dams, shutter dams, and is more
practical than the majority of sluice dams. Compared with
traditional dams, it is more economical, convenient, safe,
reliable, and practical, has a fully automated system, and is the
world's best movable dam.
Sector height ( H) : 1.5m, 2m, 2.5m, 3m, 3.5m, 4m, 4.5m, 5m, 5.5m,
Sector width (W): 6m standard for each sector, other width is
Currently, the most utilized movable dam in the world is the rubber
dam. The rubber dam is not only costly but is also lacking in
security and reliability and has a short service life. The
hydraulic elevator dam completely achieves and surpasses the
effects of the rubber dam. It may overcome the safety, reliability
and durability challenges which are associated with the rubber dam.
The cost is also greatly reduced and the service life is five times
more than that of the rubber dam.
The flap gate may encounter many problems. The most important of
them include the following. Firstly, there is the problem of water
resistance. Flap gate cannot withstand the impact of very large
floods. Secondly, it is its susceptibility to floating debris or
upstream sedimentation. It also cannot automatically move the
shutters to influence the flood control. Thirdly, the upstream
river cannot clean up floating debris, hence resulting in dirty
rivers which in turn affect the environment. Fourthly, after a
flood, the shutters close, but when sand and stone are stuck at the
bottom, this may cause a lot of water leakage. The biggest
advantage of the hydraulic elevator dam is its ability to
efficiently handle big floods.
Given the same specifications, investment in the sluice dam is
several times more than that of the hydraulic elevator dam. Each
door panel of the hydraulic elevator dam uses four-point supports.
It has a scientific mechanical structure, has a strong ability to
resist floods, is highly reliable, and its overflow is higher when
there is the formation of spectacular waterfalls. The sluice dam
only depends on both sides of the hydraulic cylinder for support,
the mechanical structure is unscientific, and it cannot withstand
the impact of large floods. It is also not very reliable and has a
low overflow. The sluice dam evidently is not beautifully as curved
hydraulic lift dam.
1. A row of vertical hydraulic cylinders from top to bottom of the
hinge axis at the back of the dam is used for the dropping and
lifting of the dam.
2. A row of sliding rods is used at the back of the movable dam to
provide stable support to the pier dam.
3. Small hydraulic cylinders are used to drive the position
limiting mechanisms, block( or release) the pulley movement of the
lower sliding strut bars, and support the pier dam's fixed and
movable exchange. Hence, in order to achieve a fixed level of
water, the movable dam is lowered.
4. A buoy switch is be used to control the operations of the
hydraulic system. The automated system allows for the lifting and
the lowering of the dam according to flood fluctuation, and as
such, may be left unsupervised. It may also be operated by a
computer through a remote control, resulting in a controlled