In the evening, the ward was still lively, and after eating outside, Lao Zhang and his family drank tea around the coffee table and chatted about the discoveries on the construction site. Although Feng Weiguo has participated in the excavation of such a similar catacomb, and has also seen rammed earth, let him analyze it from this aspect, he can't see what age and approximate use it is, so he can only listen and supplement it on the side. Professor Chen is resting in it now, so of course such a topic will be presided over by Zhang Gong now: "I said, Lao Qin, how thick do you think this rammed earth layer is?" ”

"The groundwater in this place is shallow, and now it has been dug about 7 meters, if the rammed earth layer is two meters thick, and there is a brick structure below, then it may not be much deeper, and it can't be soaked in water for construction."

Feng Weiguo thought for a while and said: "The depth of the well here is basically about 14 meters, and then it will dig two meters down to make a well." ”

Zhang Gong: "Then you mean that the entire underground structure is about 14 meters?" Now 7 meters deep, such a rammed earth layer has a long history, the thickness is also thicker at those times, poured layer after layer, basically about 3 meters, now it is known that the highest thickness of rammed earth is 6.3 meters, if it is also used here according to about 3 meters, then there is no space below. ”

"It's a temple itself, and there are no gold and silver treasures, so it's probably the function of meditation or the Golden Pavilion."

"That's not right, from the slope of the rammed earth, there is not a lot of space below, if it is to do meditation and other functions, there is no need to engage in rammed earth or anything, just dig a hole in the ground, and it will not require so much space, so I don't think it is."

"Since the temple has collapsed, and no one in the surrounding area knows which dynasty it is, and the age cannot be seen from the remaining bricks alone, let's go directly to the detection, and it will be clear in half a day tomorrow."

Professor Chen came from the middle and said to everyone: "Don't ignore the difference between the groundwater level in the past and today, now the groundwater level has basically dropped, that is to say, the depth may not be as optimistic as you think, since it is said that the water level, then I will remind you again that the groundwater level is not the same in all aquifers, some places have no groundwater at all, and some are very shallow, don't use the average in this regard." ”

Qin Gong nodded and agreed: "That is, considering the uncertainty of the groundwater layer, the unknown is big, but now since it is a hypothesis, then it is assumed that it is about 14 meters of water, then we give 2-3 meters of water level change, even if it is 11 meters, then it is only 4 meters to remove these 7 meters, and if there are 3 meters of rammed earth, it is basically gone, unless the rammed earth is not so thick." ”

Zhang Gong took over and continued: "Well, if you know what this is used for, it's easy to say, now our thinking is taken for granted that the following is an ancient tomb, indeed, in addition to building the Great Wall with glutinous rice slurry concrete and some palaces, basically all the ancient tombs have been repaired, what if the following is not an ancient tomb?" Is that not so thick? That's a lot of space. ”

Feng Weiguo asked puzzledly: "But if it's not an ancient tomb below, what would it be?" ”

"There are a lot of things under the temple, for example, it may be similar to the purpose of the Golden Pavilion, it may be a treasure store, and it may be a meditation practice."

"If it's meditation, there's no need to do it on such a large scale, right? Hidden treasures? ”

"It's possible, you'll know when you go down, don't guess."

The next morning, in order to open his eyes, Chen Zhijun went to the construction site with Zhang Gong. Zhang Gong carried the ground penetrating imager on his back, slowly moved above the rammed earth layer, carefully looked at the display on the laptop, with the expansion of the range, Zhang Gong came to a sealed dry well and stopped, and then the other party Yue Peng said: "You arrange an excavator to dig this well for me, I will draw a direction for you, you dig like this, and the entrance is below." ”

Fang Yuepeng heard that there was the entrance below the well, and asked nervously: "Is it an ancient tomb?" I'm not going to dig that thing. ”

Looking at Fang Yuepeng's expression, Zhang Gong smiled and said, "Yes, we are all unlucky, so your driver didn't have a long eye to hit the crane, hurry up and dig it, what are so many things!" ”

Seeing that Fang Yuepeng had gone to transfer the excavator, Feng Weiguo asked, "Zhang Gong, there is a dry well down here, how can you conclude that it is the entrance?" ”

Zhang Gong turned the laptop in his arms to Feng Weiguo and said: "You see, this is the three-dimensional imaging that was detected just now, it is obvious that this rammed earth layer is about 0.48 meters thick, and then the middle part represents the cavity, until it reaches the position of the well, it suddenly shrinks and then disappears, and the entrance must be here." ”

"Oh, the instrument is advanced! How big is that? ”

"The aisle below is the same as 1.6 meters wide, and there is a large point where the width may be nearly 10 meters.

While talking, the excavator on the construction site came, and soon picked up the area that Zhang Gong had marked. As the depth decreased, a rectangular hole covered with moss was seen in the wall of the well, and the entrance appeared.

In the action of the excavator, a large gentle slope was built. After Feng Weiguo called the police to come over and maintain order on it, several people went down with flashlights and gas masks.

When I arrived at the entrance of the cave, I found that the wall of the well that seemed to be nothing, in fact, there was a pit, which should have been specially prepared for digging the well or entering and exiting the bottom, and there was a small door at the entrance of the cave, which was not closed again after being opened, and the wooden door that was about to rot was half-hidden there. Seeing this scene, Zhang Gong said to Qin Gong: "Old Qin, it seems that he didn't close this door in a hurry." ”

"Maybe, let's go in first and see what it's like inside!"

After signaling everyone to put on gas masks, everyone entered the cave one after another. After about 2.5 meters down the steps, the light of the flashlight makes it no longer a narrow passage below. Zhang Gong swept around the underground structure with a flashlight and saw that it was a stolen tomb.

In the small temple, there are no stone statues, no altars, etc., and the whole temple is empty. Stepping on the slightly seeping stone floor, Qin Gong saw that there seemed to be some confused handwriting on the wall in front of him, and after stepping forward to carefully identify it, he couldn't see what it was except for the imprint that he found was ground with a simple tool.

Zhang Gong shone the flashlight in front again, and saw that the light emitted by the flashlight was normal, and preliminarily judged that there was no problem with the air here, so he slowly took off the gas mask and tried to breathe, and after making sure that there was no problem, he motioned to everyone to take off the gas mask, and then said: "This place can be sure to be an ancient tomb in the past, but then it should have been stolen, go inside and see if there is anything to be found." ”

After saying that, he led everyone through the temple and walked to the back. Before they could reach the main burial chamber, they stopped at the side of the ear chamber: the left and right ear chambers were installed with iron railings, and the iron doors on both sides were also ajar. ”

Qin Gong shook his head and said, "Lao Zhang, no, this was an ancient tomb at the beginning, and later it should have been transformed into a prison, you can see inside." After speaking, Qin Gong pointed the flashlight at the inside of the tomb, and in the flashlight, everyone understood that this was an underground prison, with several rusty modern torture instruments hanging on the wall, and a moldy stool was placed on the platform originally used to place the coffin.

Chen Zhijun walked inside, looked at it and asked Zhang Gong: "Uncle, since this was originally a tomb, where did the coffin go?" Where did the corpses go? ”

"These torture instruments were commonly used during the revolution, this is the legendary tiger chair and other torture instruments, and the corpses in the tomb should have been thrown away by those people long ago."

"That must have been done by the Kuomintang spies, and this should be the one who arrested the underground party and locked it up for secret torture and interrogation."

"It should be, let's see if there are any other tombs, the ancient tombs built in the plain area, since the underworld hall is so big, it can't be such a tomb in the back, and it can't be that when the tomb was built, it was impossible to walk through the well, and look for the real tomb."