Lock catch type single-wall cofferdam

The invention relates to a lock catch type single-wall cofferdam which comprises a plurality of side plates fixed to a riverbed and connected to each other. A lock catch head is arranged at one end ofeach side plate, a lock catch groove corresponding to the lock catch head is formed in the other side of the side plate, and water stop grooves are formed in two ends of each side plate. The lock catch type single-wall cofferdam has the beneficial effects that the lock catch type single-wall cofferdam is simple in integral structure, high in operability and easy to mount and detach, so that the construction period is shortened advantageously; and the lock catch type single-wall cofferdam is high in integrity, less in water leakage and stable and reliable, and bearing platform construction canbe carried out safely and reliably; and the lock catch type single-wall cofferdam is small in material consumption and low in construction cost. 本发明涉及一种锁扣式单壁围堰，包括固定在河床上并相互连接的若干侧板，所述侧板的一端设置有锁扣头，且该侧板的另一端设置有与所述锁扣头对应的锁扣槽，所述侧板的两端均