In gardens, we often see the landscape in which single rocks are vertically arranged into independent peaks, which is a common form of inlaying stones with special rocks. Just as Li Daoyuan of the Northern Wei Dynasty described the "Hammer Peak" on the east side of chengde mountain resort in "Notes on Water Classics", a peak stone placed separately and specially is: "Standing on the mountains, alone in the stone cloud peak, with steep cliffs, it can be more than 100 meters high." It is based on the isolated rocks in nature (well-known as Feilai Peak in Huangshan Mountain, Anhui Province), adopts a special form, and shows the unique individual beauty of the peak stone with the centralized washing method of "one peak is too beautiful to be sought after". Like single-character calligraphy or close-ups, it highlights its integrity and natural beauty. In the history of garden development in China, the unique setting of peak stones is the early performance of mountain craftsmen. In ancient times, garden owners often boasted about those strange peaks and rocks. Evonne, Song Huizong, even added a title to the peak, giving it such peak names as "Divine Luck", "Zhao Gong", "Fuqing" and "Wanshou". "The only' lucky peak' is six feet wide and high. (Zuxiu's Story of Huayang Palace) Ruiyunfeng and Yundingfeng in Suzhou are the relics of this period (Huashigang in the Northern Song Dynasty); At the same time, the peak stone is also a concentrated expression of the owner's self-confirmation, personality publicity, spiritual world and aesthetic taste. For example, Mi Fei worships the stone, and Liu Shu, the owner of Hanbizhuang (the predecessor of Lingering Garden), nicknamed himself "The Whistling of the Twelve Peaks" and so on. It is this huge and changeable peak stone that has unique ornamental value, so if you mix them with ordinary stones, it is tantamount to throwing them away and burying their due value. Therefore, it is often placed in the main viewing position as the main viewing scene application, such as Yungai Peak in Suzhou Liuyuan and Yulinglong in Shanghai Yuyuan Garden.

Traditional special peak stones are often placed on a plastic base or an integral natural rock base, which is called "rock". The requirement of engineering structure is stability and durability, and the key to stability and durability is to master the center of gravity of the peak stone, so that its center of gravity is vertical downward and does not deviate from the center of gravity, thus keeping the peak stone in balance. The traditional practice in China is to cut a "bamboo eye" (that is, mortise) on the base of the peak stone and put the bottom of the peak stone into the bamboo eye. "Yuanye" says: "What would it be like if there were peaks and stones together? Choose the peak and grain, so that the craftsman can chisel bamboo shoots for the seat. It is reasonable to be big or small, and it is impressive to stand. " It means: For a single specially placed peak stone, we should first carefully examine its shape, and then choose a rock with similar texture and color to let the craftsman chisel the base with bamboo shoots. However, the peak stone will be installed on it according to its size and shape, which looks good. The bottom of the peak stone can also be slightly processed to form stalagmite heads. The size and depth of stalagmite eyes depends on the volume of the peak stone and the shape of the stalagmite head at the bottom. Generally speaking, the diameter and depth of stalagmite eye are slightly larger and deeper than the stalagmite head at the lower part of the peak stone. Before hoisting, a small amount of bonding material should be poured into stalagmite eyes. When hoisting, the peak stone should be hung vertically, carefully check its center of gravity, and correct it at any time, and then slowly fall into the stalagmite eye at the base. As for the modern vertical peak, its practice is relatively simple because of the improvement of the strength of cementing materials and the improvement of technological level. Generally, bamboo shoots are no longer chiseled on the base, but placed directly on the base. The method is the same as the traditional vertical peak, and its main point is that the center of gravity is vertically downward, which is fixed with brake pads and then jointed with cement mortar to form a whole. The material of peak stone has also expanded from unimodal stone in Taihu Lake to stone species such as Huangshi, especially in modern greening landscape.

In addition to a single special peak stone, because good peak stones are hard to find or limited by economic conditions, there are two, three or several similar modeling stones in shape, texture, color, wrinkles and so on. It is also used to form a peak stone. This kind of stone distribution form is called peak splicing, which is a more complicated stone placement form. "Yuanye" says: "Or two or three peaks are stacked together, and the size is appropriate, as if flying. Or a few, like the previous formula, must be capped with two or three big stones. It should be noted that the balance method is reasonable. There is a slight side, and it will be cautious if it is exceeded for a long time. " Therefore, when overlapping peaks, we must first determine the center of gravity according to the principle of equal balance method, and then stack them from bottom to top. Pay attention not only to concentrate the pressure on one point to balance the weight, but also to the shape. Like the single-peak stone, it should be left large and small, so that it can fly from left to right, such as the "Nine Lion Peaks" and "Three Yuan Peaks" in the lion forest in Suzhou classical gardens. Jiushifeng is a group of large stone peaks composed of Taihu rocks. The pitch of the peak is changeable, exquisite and porous, and nine lions of different shapes crouch among them. It can be called the tripod of Jinhua school rockery. Some people call this overlapping peak, which uses Taihu stone to simulate animal modeling, "heap sculpture", which means it is like an abstract sculpture made of Taihu stone. In Jiangnan gardens, besides the stone peaks in Taihu Lake, we often see works decorated with stalagmites, axes and stones. , or combined into a small rockery scene. The layout is either a single sword with one peak or a combination of two or three swords. Its essentials: first, choose a stone with a straight shape like a sword; Secondly, in the combination, we should pay attention to clear priorities, appropriate density, gathering without bias, separating without loneliness, and patchwork, such as the configuration of stalagmites in the rockery of Yangzhou Geyuan Four Seasons.

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